* [RFC PATCH 0/4] pinctrl: prototyping a per pin mux approach
@ 2015-04-02 9:38 ` Ludovic Desroches
0 siblings, 0 replies; 14+ messages in thread
From: Ludovic Desroches @ 2015-04-02 9:38 UTC (permalink / raw)
To: linux-arm-kernel, linux-gpio, devicetree
Cc: linus.walleij, laurent.pinchart, swarren, s.hauer, tony,
nicolas.ferre, Ludovic Desroches
Hi,
Here is an implementation of what I need for the future at91 pin controller.
The pinctrl driver is a draft made for a sama5d4 in order to test it.
It is not clean and many things are missing but I think it will be easier to
debate on code.
>From the discussion with Sascha, it seems that we agree that current pinctrl
doesn't fit the needs of controllers who have per pin muxing because the
concepts of groups is not real.
In my opinion, even if groups are not real it is quite convenient to use them
at least for debug sysfs.
The new at91 pin controller is close to Mediatek one. I am not totally happy
with their solution since a group is describing a pin. It is probably the
easiest way to do it but it doesn't fit my needs. I have two constraints:
- I want something readable in sysfs as:
device fc000000.mmc
state default
type MUX_GROUP (2)
controlling device ahb:apb:pinctrl@fc06a000
group mci1_0_4bit
function C
device fc000000.mmc
state default
type CONFIGS_PIN (3)
controlling device ahb:apb:pinctrl@fc06a000
pin PE19
config 00010003
I don't want to have a group named as a pin.
- I want to perform some verifications on user choices. A concept of ioset is
introduced. An ioset is a set of pins dedicated to a device. A device can have
several iosets. For example we can have i2c0 ioset1 with pins PA0 and PA1 and
i2c0 ioset2 with pins PE10 and PE11. The controller has no knowledge about
iosets. It means I could take the i2c data signal from ioset1 and the i2c
clock signal from ioset2 BUT validation has been done only per ioset. For
devices such as i2c it should not be a problem but it could be for other ones
such as mci, isi, etc.
- I don't want big tables describing pins in my driver. It represents a huge
amount of code mainly useless in the case of a multiplatform image.
- I would like to find a generic solution if possible by still using
pinconf_generic_dt_node_to_map_all() instead of having my own implementation
which will only call pinconf_generic_parse_dt_config().
Well, I let you having a look to the following patch, it should help you to
understand what I mean and what I need.
Regards
Ludovic
Ludovic Desroches (4):
pinctrl: change function behavior for per pin muxing controllers
pinctrl: introduce complex pin description
pinctrl: rough draft for a future controller
ARM: at91/dt: proto dt
arch/arm/boot/dts/Makefile | 1 +
arch/arm/boot/dts/at91-sama5d4ek_proto.dts | 243 ++++++++++
arch/arm/boot/dts/sama5d4_proto-pinfunc.h | 463 +++++++++++++++++++
arch/arm/boot/dts/sama5d4_proto.dtsi | 716 +++++++++++++++++++++++++++++
drivers/pinctrl/Kconfig | 10 +
drivers/pinctrl/Makefile | 1 +
drivers/pinctrl/pinconf-generic.c | 115 +++--
drivers/pinctrl/pinctrl-at91-pio4.c | 625 +++++++++++++++++++++++++
drivers/pinctrl/pinmux.c | 58 +--
include/linux/pinctrl/pinctrl.h | 5 +
include/linux/pinctrl/pinmux.h | 3 +
11 files changed, 2180 insertions(+), 60 deletions(-)
create mode 100644 arch/arm/boot/dts/at91-sama5d4ek_proto.dts
create mode 100644 arch/arm/boot/dts/sama5d4_proto-pinfunc.h
create mode 100644 arch/arm/boot/dts/sama5d4_proto.dtsi
create mode 100644 drivers/pinctrl/pinctrl-at91-pio4.c
--
2.2.0
^ permalink raw reply [flat|nested] 14+ messages in thread
* [RFC PATCH 0/4] pinctrl: prototyping a per pin mux approach
@ 2015-04-02 9:38 ` Ludovic Desroches
0 siblings, 0 replies; 14+ messages in thread
From: Ludovic Desroches @ 2015-04-02 9:38 UTC (permalink / raw)
To: linux-arm-kernel
Hi,
Here is an implementation of what I need for the future at91 pin controller.
The pinctrl driver is a draft made for a sama5d4 in order to test it.
It is not clean and many things are missing but I think it will be easier to
debate on code.
>From the discussion with Sascha, it seems that we agree that current pinctrl
doesn't fit the needs of controllers who have per pin muxing because the
concepts of groups is not real.
In my opinion, even if groups are not real it is quite convenient to use them
at least for debug sysfs.
The new at91 pin controller is close to Mediatek one. I am not totally happy
with their solution since a group is describing a pin. It is probably the
easiest way to do it but it doesn't fit my needs. I have two constraints:
- I want something readable in sysfs as:
device fc000000.mmc
state default
type MUX_GROUP (2)
controlling device ahb:apb:pinctrl at fc06a000
group mci1_0_4bit
function C
device fc000000.mmc
state default
type CONFIGS_PIN (3)
controlling device ahb:apb:pinctrl at fc06a000
pin PE19
config 00010003
I don't want to have a group named as a pin.
- I want to perform some verifications on user choices. A concept of ioset is
introduced. An ioset is a set of pins dedicated to a device. A device can have
several iosets. For example we can have i2c0 ioset1 with pins PA0 and PA1 and
i2c0 ioset2 with pins PE10 and PE11. The controller has no knowledge about
iosets. It means I could take the i2c data signal from ioset1 and the i2c
clock signal from ioset2 BUT validation has been done only per ioset. For
devices such as i2c it should not be a problem but it could be for other ones
such as mci, isi, etc.
- I don't want big tables describing pins in my driver. It represents a huge
amount of code mainly useless in the case of a multiplatform image.
- I would like to find a generic solution if possible by still using
pinconf_generic_dt_node_to_map_all() instead of having my own implementation
which will only call pinconf_generic_parse_dt_config().
Well, I let you having a look to the following patch, it should help you to
understand what I mean and what I need.
Regards
Ludovic
Ludovic Desroches (4):
pinctrl: change function behavior for per pin muxing controllers
pinctrl: introduce complex pin description
pinctrl: rough draft for a future controller
ARM: at91/dt: proto dt
arch/arm/boot/dts/Makefile | 1 +
arch/arm/boot/dts/at91-sama5d4ek_proto.dts | 243 ++++++++++
arch/arm/boot/dts/sama5d4_proto-pinfunc.h | 463 +++++++++++++++++++
arch/arm/boot/dts/sama5d4_proto.dtsi | 716 +++++++++++++++++++++++++++++
drivers/pinctrl/Kconfig | 10 +
drivers/pinctrl/Makefile | 1 +
drivers/pinctrl/pinconf-generic.c | 115 +++--
drivers/pinctrl/pinctrl-at91-pio4.c | 625 +++++++++++++++++++++++++
drivers/pinctrl/pinmux.c | 58 +--
include/linux/pinctrl/pinctrl.h | 5 +
include/linux/pinctrl/pinmux.h | 3 +
11 files changed, 2180 insertions(+), 60 deletions(-)
create mode 100644 arch/arm/boot/dts/at91-sama5d4ek_proto.dts
create mode 100644 arch/arm/boot/dts/sama5d4_proto-pinfunc.h
create mode 100644 arch/arm/boot/dts/sama5d4_proto.dtsi
create mode 100644 drivers/pinctrl/pinctrl-at91-pio4.c
--
2.2.0
^ permalink raw reply [flat|nested] 14+ messages in thread
* [RFC PATCH 1/4] pinctrl: change function behavior for per pin muxing controllers
2015-04-02 9:38 ` Ludovic Desroches
@ 2015-04-02 9:38 ` Ludovic Desroches
-1 siblings, 0 replies; 14+ messages in thread
From: Ludovic Desroches @ 2015-04-02 9:38 UTC (permalink / raw)
To: linux-arm-kernel, linux-gpio, devicetree
Cc: linus.walleij, laurent.pinchart, swarren, s.hauer, tony,
nicolas.ferre, Ludovic Desroches
When having a controller which allows per pin muxing, declaring with
which groups a function can be used is a useless constraint since groups
are something virtual.
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
---
drivers/pinctrl/pinmux.c | 58 +++++++++++++++++++++++-------------------
include/linux/pinctrl/pinmux.h | 3 +++
2 files changed, 35 insertions(+), 26 deletions(-)
diff --git a/drivers/pinctrl/pinmux.c b/drivers/pinctrl/pinmux.c
index b874458..15fe3f7 100644
--- a/drivers/pinctrl/pinmux.c
+++ b/drivers/pinctrl/pinmux.c
@@ -40,7 +40,7 @@ int pinmux_check_ops(struct pinctrl_dev *pctldev)
if (!ops ||
!ops->get_functions_count ||
!ops->get_function_name ||
- !ops->get_function_groups ||
+ (!ops->get_function_groups & !ops->mux_per_pin) ||
!ops->set_mux) {
dev_err(pctldev->dev, "pinmux ops lacks necessary functions\n");
return -EINVAL;
@@ -338,36 +338,42 @@ int pinmux_map_to_setting(struct pinctrl_map const *map,
}
setting->data.mux.func = ret;
- ret = pmxops->get_function_groups(pctldev, setting->data.mux.func,
- &groups, &num_groups);
- if (ret < 0) {
- dev_err(pctldev->dev, "can't query groups for function %s\n",
- map->data.mux.function);
- return ret;
- }
- if (!num_groups) {
- dev_err(pctldev->dev,
- "function %s can't be selected on any group\n",
- map->data.mux.function);
- return -EINVAL;
- }
- if (map->data.mux.group) {
- bool found = false;
- group = map->data.mux.group;
- for (i = 0; i < num_groups; i++) {
- if (!strcmp(group, groups[i])) {
- found = true;
- break;
- }
+ if (!pmxops->mux_per_pin) {
+ ret = pmxops->get_function_groups(pctldev,
+ setting->data.mux.func,
+ &groups, &num_groups);
+ if (ret < 0) {
+ dev_err(pctldev->dev,
+ "can't query groups for function %s\n",
+ map->data.mux.function);
+ return ret;
}
- if (!found) {
+ if (!num_groups) {
dev_err(pctldev->dev,
- "invalid group \"%s\" for function \"%s\"\n",
- group, map->data.mux.function);
+ "function %s can't be selected on any group\n",
+ map->data.mux.function);
return -EINVAL;
}
+ if (map->data.mux.group) {
+ bool found = false;
+ group = map->data.mux.group;
+ for (i = 0; i < num_groups; i++) {
+ if (!strcmp(group, groups[i])) {
+ found = true;
+ break;
+ }
+ }
+ if (!found) {
+ dev_err(pctldev->dev,
+ "invalid group \"%s\" for function \"%s\"\n",
+ group, map->data.mux.function);
+ return -EINVAL;
+ }
+ } else {
+ group = groups[0];
+ }
} else {
- group = groups[0];
+ group = map->data.mux.group;
}
ret = pinctrl_get_group_selector(pctldev, group);
diff --git a/include/linux/pinctrl/pinmux.h b/include/linux/pinctrl/pinmux.h
index 511bda9..85eeef7 100644
--- a/include/linux/pinctrl/pinmux.h
+++ b/include/linux/pinctrl/pinmux.h
@@ -23,6 +23,8 @@ struct pinctrl_dev;
/**
* struct pinmux_ops - pinmux operations, to be implemented by pin controller
* drivers that support pinmuxing
+ * @mux_per_pin: in case of per pin muxing, it removes the need to declare
+ * with which groups a function can be used.
* @request: called by the core to see if a certain pin can be made
* available for muxing. This is called by the core to acquire the pins
* before selecting any actual mux setting across a function. The driver
@@ -58,6 +60,7 @@ struct pinctrl_dev;
* to the GPIO controllers that need pin muxing.
*/
struct pinmux_ops {
+ bool mux_per_pin;
int (*request) (struct pinctrl_dev *pctldev, unsigned offset);
int (*free) (struct pinctrl_dev *pctldev, unsigned offset);
int (*get_functions_count) (struct pinctrl_dev *pctldev);
--
2.2.0
^ permalink raw reply related [flat|nested] 14+ messages in thread
* [RFC PATCH 1/4] pinctrl: change function behavior for per pin muxing controllers
@ 2015-04-02 9:38 ` Ludovic Desroches
0 siblings, 0 replies; 14+ messages in thread
From: Ludovic Desroches @ 2015-04-02 9:38 UTC (permalink / raw)
To: linux-arm-kernel
When having a controller which allows per pin muxing, declaring with
which groups a function can be used is a useless constraint since groups
are something virtual.
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
---
drivers/pinctrl/pinmux.c | 58 +++++++++++++++++++++++-------------------
include/linux/pinctrl/pinmux.h | 3 +++
2 files changed, 35 insertions(+), 26 deletions(-)
diff --git a/drivers/pinctrl/pinmux.c b/drivers/pinctrl/pinmux.c
index b874458..15fe3f7 100644
--- a/drivers/pinctrl/pinmux.c
+++ b/drivers/pinctrl/pinmux.c
@@ -40,7 +40,7 @@ int pinmux_check_ops(struct pinctrl_dev *pctldev)
if (!ops ||
!ops->get_functions_count ||
!ops->get_function_name ||
- !ops->get_function_groups ||
+ (!ops->get_function_groups & !ops->mux_per_pin) ||
!ops->set_mux) {
dev_err(pctldev->dev, "pinmux ops lacks necessary functions\n");
return -EINVAL;
@@ -338,36 +338,42 @@ int pinmux_map_to_setting(struct pinctrl_map const *map,
}
setting->data.mux.func = ret;
- ret = pmxops->get_function_groups(pctldev, setting->data.mux.func,
- &groups, &num_groups);
- if (ret < 0) {
- dev_err(pctldev->dev, "can't query groups for function %s\n",
- map->data.mux.function);
- return ret;
- }
- if (!num_groups) {
- dev_err(pctldev->dev,
- "function %s can't be selected on any group\n",
- map->data.mux.function);
- return -EINVAL;
- }
- if (map->data.mux.group) {
- bool found = false;
- group = map->data.mux.group;
- for (i = 0; i < num_groups; i++) {
- if (!strcmp(group, groups[i])) {
- found = true;
- break;
- }
+ if (!pmxops->mux_per_pin) {
+ ret = pmxops->get_function_groups(pctldev,
+ setting->data.mux.func,
+ &groups, &num_groups);
+ if (ret < 0) {
+ dev_err(pctldev->dev,
+ "can't query groups for function %s\n",
+ map->data.mux.function);
+ return ret;
}
- if (!found) {
+ if (!num_groups) {
dev_err(pctldev->dev,
- "invalid group \"%s\" for function \"%s\"\n",
- group, map->data.mux.function);
+ "function %s can't be selected on any group\n",
+ map->data.mux.function);
return -EINVAL;
}
+ if (map->data.mux.group) {
+ bool found = false;
+ group = map->data.mux.group;
+ for (i = 0; i < num_groups; i++) {
+ if (!strcmp(group, groups[i])) {
+ found = true;
+ break;
+ }
+ }
+ if (!found) {
+ dev_err(pctldev->dev,
+ "invalid group \"%s\" for function \"%s\"\n",
+ group, map->data.mux.function);
+ return -EINVAL;
+ }
+ } else {
+ group = groups[0];
+ }
} else {
- group = groups[0];
+ group = map->data.mux.group;
}
ret = pinctrl_get_group_selector(pctldev, group);
diff --git a/include/linux/pinctrl/pinmux.h b/include/linux/pinctrl/pinmux.h
index 511bda9..85eeef7 100644
--- a/include/linux/pinctrl/pinmux.h
+++ b/include/linux/pinctrl/pinmux.h
@@ -23,6 +23,8 @@ struct pinctrl_dev;
/**
* struct pinmux_ops - pinmux operations, to be implemented by pin controller
* drivers that support pinmuxing
+ * @mux_per_pin: in case of per pin muxing, it removes the need to declare
+ * with which groups a function can be used.
* @request: called by the core to see if a certain pin can be made
* available for muxing. This is called by the core to acquire the pins
* before selecting any actual mux setting across a function. The driver
@@ -58,6 +60,7 @@ struct pinctrl_dev;
* to the GPIO controllers that need pin muxing.
*/
struct pinmux_ops {
+ bool mux_per_pin;
int (*request) (struct pinctrl_dev *pctldev, unsigned offset);
int (*free) (struct pinctrl_dev *pctldev, unsigned offset);
int (*get_functions_count) (struct pinctrl_dev *pctldev);
--
2.2.0
^ permalink raw reply related [flat|nested] 14+ messages in thread
* [RFC PATCH 2/4] pinctrl: introduce complex pin description
2015-04-02 9:38 ` Ludovic Desroches
@ 2015-04-02 9:38 ` Ludovic Desroches
-1 siblings, 0 replies; 14+ messages in thread
From: Ludovic Desroches @ 2015-04-02 9:38 UTC (permalink / raw)
To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
linux-gpio-u79uwXL29TY76Z2rM5mHXA,
devicetree-u79uwXL29TY76Z2rM5mHXA
Cc: linus.walleij-QSEj5FYQhm4dnm+yROfE0A,
laurent.pinchart-ryLnwIuWjnjg/C1BVhZhaw,
swarren-3lzwWm7+Weoh9ZMKESR00Q, s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ,
tony-4v6yS6AI5VpBDgjK7y7TUQ,
nicolas.ferre-AIFe0yeh4nAAvxtiuMwx3w, Ludovic Desroches
Some extra information may be needed to describe a pin, mainly for
controllers support per pin muxing where groups are an abstract concept.
Instead of using its name, use a 32 bit value whose 16 lowest bits are used
for the pin number and the 16 highest ones can be used for extra information.
Signed-off-by: Ludovic Desroches <ludovic.desroches-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org>
---
drivers/pinctrl/pinconf-generic.c | 115 +++++++++++++++++++++++++++-----------
include/linux/pinctrl/pinctrl.h | 5 ++
2 files changed, 86 insertions(+), 34 deletions(-)
diff --git a/drivers/pinctrl/pinconf-generic.c b/drivers/pinctrl/pinconf-generic.c
index e088666..11f9d1b 100644
--- a/drivers/pinctrl/pinconf-generic.c
+++ b/drivers/pinctrl/pinconf-generic.c
@@ -268,28 +268,53 @@ out:
return ret;
}
-int pinconf_generic_dt_subnode_to_map(struct pinctrl_dev *pctldev,
+int pinconf_generic_dt_subnode_to_mux_map(struct pinctrl_dev *pctldev,
struct device_node *np, struct pinctrl_map **map,
unsigned *reserved_maps, unsigned *num_maps,
- enum pinctrl_map_type type)
+ const char *function)
{
int ret;
- const char *function;
- struct device *dev = pctldev->dev;
- unsigned long *configs = NULL;
- unsigned num_configs = 0;
- unsigned reserve;
- struct property *prop;
const char *group;
- const char *subnode_target_type = "pins";
+ struct property *prop;
+ struct device *dev = pctldev->dev;
ret = of_property_read_string(np, "function", &function);
- if (ret < 0) {
- /* EINVAL=missing, which is fine since it's optional */
- if (ret != -EINVAL)
- dev_err(dev, "could not parse property function\n");
- function = NULL;
+
+ of_property_for_each_string(np, "groups", prop, group) {
+
+ ret = pinctrl_utils_reserve_map(pctldev, map, reserved_maps,
+ num_maps, 1);
+ if (ret < 0)
+ goto exit;
+
+ ret = pinctrl_utils_add_map_mux(pctldev, map, reserved_maps,
+ num_maps, group, function);
+ if (ret < 0)
+ goto exit;
}
+ ret = 0;
+
+exit:
+ return ret;
+}
+
+int pinconf_generic_dt_subnode_to_conf_map(struct pinctrl_dev *pctldev,
+ struct device_node *np, struct pinctrl_map **map,
+ unsigned *reserved_maps, unsigned *num_maps,
+ enum pinctrl_map_type type)
+{
+ const struct pinctrl_desc *pctldesc = pctldev->desc;
+ int ret;
+ unsigned reserve, pin_id;
+ unsigned long *configs = NULL;
+ const char *pin;
+ const char *group;
+ const char *subnode_target_type = "pins";
+ struct property *prop;
+ const __be32 *cur;
+ u32 val;
+ unsigned num_configs = 0;
+ struct device *dev = pctldev->dev;
ret = pinconf_generic_parse_dt_config(np, pctldev, &configs,
&num_configs);
@@ -298,14 +323,7 @@ int pinconf_generic_dt_subnode_to_map(struct pinctrl_dev *pctldev,
return ret;
}
- reserve = 0;
- if (function != NULL)
- reserve++;
- if (num_configs)
- reserve++;
-
- ret = of_property_count_strings(np, "pins");
- if (ret < 0) {
+ if (!of_property_read_bool(np, "pins")) {
ret = of_property_count_strings(np, "groups");
if (ret < 0) {
dev_err(dev, "could not parse property pins/groups\n");
@@ -315,26 +333,35 @@ int pinconf_generic_dt_subnode_to_map(struct pinctrl_dev *pctldev,
type = PIN_MAP_TYPE_CONFIGS_GROUP;
subnode_target_type = "groups";
} else {
+ if (pctldesc->complex_pin_desc)
+ ret = of_property_count_u32_elems(np, "pins");
+ else
+ ret = of_property_count_strings(np, "pins");
+
+ if (ret < 0) {
+ dev_err(dev, "could not parse property pins\n");
+ goto exit;
+ }
if (type == PIN_MAP_TYPE_INVALID)
type = PIN_MAP_TYPE_CONFIGS_PIN;
}
- reserve *= ret;
+ reserve = ret;
ret = pinctrl_utils_reserve_map(pctldev, map, reserved_maps,
num_maps, reserve);
if (ret < 0)
goto exit;
- of_property_for_each_string(np, subnode_target_type, prop, group) {
- if (function) {
- ret = pinctrl_utils_add_map_mux(pctldev, map,
- reserved_maps, num_maps, group,
- function);
- if (ret < 0)
- goto exit;
+ if (pctldesc->complex_pin_desc) {
+ of_property_for_each_u32(np, subnode_target_type, prop, cur, val) {
+ pin_id = val & PINCTRL_PIN_MASK;
+ pin = pctldesc->pins[pin_id].name;
+ ret = pinctrl_utils_add_map_configs(pctldev, map,
+ reserved_maps, num_maps, pin, configs,
+ num_configs, type);
}
-
- if (num_configs) {
+ } else {
+ of_property_for_each_string(np, subnode_target_type, prop, group) {
ret = pinctrl_utils_add_map_configs(pctldev, map,
reserved_maps, num_maps, group, configs,
num_configs, type);
@@ -342,12 +369,32 @@ int pinconf_generic_dt_subnode_to_map(struct pinctrl_dev *pctldev,
goto exit;
}
}
- ret = 0;
-
exit:
kfree(configs);
return ret;
}
+
+int pinconf_generic_dt_subnode_to_map(struct pinctrl_dev *pctldev,
+ struct device_node *np, struct pinctrl_map **map,
+ unsigned *reserved_maps, unsigned *num_maps,
+ enum pinctrl_map_type type)
+{
+ int ret;
+ const char *function;
+ struct device *dev = pctldev->dev;
+
+ ret = of_property_read_string(np, "function", &function);
+ if (ret < 0) {
+ /* EINVAL=missing, which is fine since it's optional */
+ if (ret != -EINVAL)
+ dev_err(dev, "could not parse property function\n");
+ return pinconf_generic_dt_subnode_to_conf_map(pctldev,
+ np, map, reserved_maps, num_maps, type);
+ } else {
+ return pinconf_generic_dt_subnode_to_mux_map(pctldev,
+ np, map, reserved_maps, num_maps, function);
+ }
+}
EXPORT_SYMBOL_GPL(pinconf_generic_dt_subnode_to_map);
int pinconf_generic_dt_node_to_map(struct pinctrl_dev *pctldev,
diff --git a/include/linux/pinctrl/pinctrl.h b/include/linux/pinctrl/pinctrl.h
index c58b3e1..06a070a 100644
--- a/include/linux/pinctrl/pinctrl.h
+++ b/include/linux/pinctrl/pinctrl.h
@@ -45,6 +45,8 @@ struct pinctrl_pin_desc {
#define PINCTRL_PIN(a, b) { .number = a, .name = b }
#define PINCTRL_PIN_ANON(a) { .number = a }
+#define PINCTRL_PIN_MASK 0xffff
+
/**
* struct pinctrl_gpio_range - each pin controller can provide subranges of
* the GPIO number space to be handled by the controller
@@ -112,6 +114,8 @@ struct pinctrl_ops {
* this pin controller
* @npins: number of descriptors in the array, usually just ARRAY_SIZE()
* of the pins field above
+ * @complex_pin_desc: some pin controller needs more information than the pin
+ * name. In this case pins property uses u32 elements instead of strings
* @pctlops: pin control operation vtable, to support global concepts like
* grouping of pins, this is optional.
* @pmxops: pinmux operations vtable, if you support pinmuxing in your driver
@@ -126,6 +130,7 @@ struct pinctrl_desc {
const char *name;
struct pinctrl_pin_desc const *pins;
unsigned int npins;
+ bool complex_pin_desc;
const struct pinctrl_ops *pctlops;
const struct pinmux_ops *pmxops;
const struct pinconf_ops *confops;
--
2.2.0
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^ permalink raw reply related [flat|nested] 14+ messages in thread
* [RFC PATCH 2/4] pinctrl: introduce complex pin description
@ 2015-04-02 9:38 ` Ludovic Desroches
0 siblings, 0 replies; 14+ messages in thread
From: Ludovic Desroches @ 2015-04-02 9:38 UTC (permalink / raw)
To: linux-arm-kernel
Some extra information may be needed to describe a pin, mainly for
controllers support per pin muxing where groups are an abstract concept.
Instead of using its name, use a 32 bit value whose 16 lowest bits are used
for the pin number and the 16 highest ones can be used for extra information.
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
---
drivers/pinctrl/pinconf-generic.c | 115 +++++++++++++++++++++++++++-----------
include/linux/pinctrl/pinctrl.h | 5 ++
2 files changed, 86 insertions(+), 34 deletions(-)
diff --git a/drivers/pinctrl/pinconf-generic.c b/drivers/pinctrl/pinconf-generic.c
index e088666..11f9d1b 100644
--- a/drivers/pinctrl/pinconf-generic.c
+++ b/drivers/pinctrl/pinconf-generic.c
@@ -268,28 +268,53 @@ out:
return ret;
}
-int pinconf_generic_dt_subnode_to_map(struct pinctrl_dev *pctldev,
+int pinconf_generic_dt_subnode_to_mux_map(struct pinctrl_dev *pctldev,
struct device_node *np, struct pinctrl_map **map,
unsigned *reserved_maps, unsigned *num_maps,
- enum pinctrl_map_type type)
+ const char *function)
{
int ret;
- const char *function;
- struct device *dev = pctldev->dev;
- unsigned long *configs = NULL;
- unsigned num_configs = 0;
- unsigned reserve;
- struct property *prop;
const char *group;
- const char *subnode_target_type = "pins";
+ struct property *prop;
+ struct device *dev = pctldev->dev;
ret = of_property_read_string(np, "function", &function);
- if (ret < 0) {
- /* EINVAL=missing, which is fine since it's optional */
- if (ret != -EINVAL)
- dev_err(dev, "could not parse property function\n");
- function = NULL;
+
+ of_property_for_each_string(np, "groups", prop, group) {
+
+ ret = pinctrl_utils_reserve_map(pctldev, map, reserved_maps,
+ num_maps, 1);
+ if (ret < 0)
+ goto exit;
+
+ ret = pinctrl_utils_add_map_mux(pctldev, map, reserved_maps,
+ num_maps, group, function);
+ if (ret < 0)
+ goto exit;
}
+ ret = 0;
+
+exit:
+ return ret;
+}
+
+int pinconf_generic_dt_subnode_to_conf_map(struct pinctrl_dev *pctldev,
+ struct device_node *np, struct pinctrl_map **map,
+ unsigned *reserved_maps, unsigned *num_maps,
+ enum pinctrl_map_type type)
+{
+ const struct pinctrl_desc *pctldesc = pctldev->desc;
+ int ret;
+ unsigned reserve, pin_id;
+ unsigned long *configs = NULL;
+ const char *pin;
+ const char *group;
+ const char *subnode_target_type = "pins";
+ struct property *prop;
+ const __be32 *cur;
+ u32 val;
+ unsigned num_configs = 0;
+ struct device *dev = pctldev->dev;
ret = pinconf_generic_parse_dt_config(np, pctldev, &configs,
&num_configs);
@@ -298,14 +323,7 @@ int pinconf_generic_dt_subnode_to_map(struct pinctrl_dev *pctldev,
return ret;
}
- reserve = 0;
- if (function != NULL)
- reserve++;
- if (num_configs)
- reserve++;
-
- ret = of_property_count_strings(np, "pins");
- if (ret < 0) {
+ if (!of_property_read_bool(np, "pins")) {
ret = of_property_count_strings(np, "groups");
if (ret < 0) {
dev_err(dev, "could not parse property pins/groups\n");
@@ -315,26 +333,35 @@ int pinconf_generic_dt_subnode_to_map(struct pinctrl_dev *pctldev,
type = PIN_MAP_TYPE_CONFIGS_GROUP;
subnode_target_type = "groups";
} else {
+ if (pctldesc->complex_pin_desc)
+ ret = of_property_count_u32_elems(np, "pins");
+ else
+ ret = of_property_count_strings(np, "pins");
+
+ if (ret < 0) {
+ dev_err(dev, "could not parse property pins\n");
+ goto exit;
+ }
if (type == PIN_MAP_TYPE_INVALID)
type = PIN_MAP_TYPE_CONFIGS_PIN;
}
- reserve *= ret;
+ reserve = ret;
ret = pinctrl_utils_reserve_map(pctldev, map, reserved_maps,
num_maps, reserve);
if (ret < 0)
goto exit;
- of_property_for_each_string(np, subnode_target_type, prop, group) {
- if (function) {
- ret = pinctrl_utils_add_map_mux(pctldev, map,
- reserved_maps, num_maps, group,
- function);
- if (ret < 0)
- goto exit;
+ if (pctldesc->complex_pin_desc) {
+ of_property_for_each_u32(np, subnode_target_type, prop, cur, val) {
+ pin_id = val & PINCTRL_PIN_MASK;
+ pin = pctldesc->pins[pin_id].name;
+ ret = pinctrl_utils_add_map_configs(pctldev, map,
+ reserved_maps, num_maps, pin, configs,
+ num_configs, type);
}
-
- if (num_configs) {
+ } else {
+ of_property_for_each_string(np, subnode_target_type, prop, group) {
ret = pinctrl_utils_add_map_configs(pctldev, map,
reserved_maps, num_maps, group, configs,
num_configs, type);
@@ -342,12 +369,32 @@ int pinconf_generic_dt_subnode_to_map(struct pinctrl_dev *pctldev,
goto exit;
}
}
- ret = 0;
-
exit:
kfree(configs);
return ret;
}
+
+int pinconf_generic_dt_subnode_to_map(struct pinctrl_dev *pctldev,
+ struct device_node *np, struct pinctrl_map **map,
+ unsigned *reserved_maps, unsigned *num_maps,
+ enum pinctrl_map_type type)
+{
+ int ret;
+ const char *function;
+ struct device *dev = pctldev->dev;
+
+ ret = of_property_read_string(np, "function", &function);
+ if (ret < 0) {
+ /* EINVAL=missing, which is fine since it's optional */
+ if (ret != -EINVAL)
+ dev_err(dev, "could not parse property function\n");
+ return pinconf_generic_dt_subnode_to_conf_map(pctldev,
+ np, map, reserved_maps, num_maps, type);
+ } else {
+ return pinconf_generic_dt_subnode_to_mux_map(pctldev,
+ np, map, reserved_maps, num_maps, function);
+ }
+}
EXPORT_SYMBOL_GPL(pinconf_generic_dt_subnode_to_map);
int pinconf_generic_dt_node_to_map(struct pinctrl_dev *pctldev,
diff --git a/include/linux/pinctrl/pinctrl.h b/include/linux/pinctrl/pinctrl.h
index c58b3e1..06a070a 100644
--- a/include/linux/pinctrl/pinctrl.h
+++ b/include/linux/pinctrl/pinctrl.h
@@ -45,6 +45,8 @@ struct pinctrl_pin_desc {
#define PINCTRL_PIN(a, b) { .number = a, .name = b }
#define PINCTRL_PIN_ANON(a) { .number = a }
+#define PINCTRL_PIN_MASK 0xffff
+
/**
* struct pinctrl_gpio_range - each pin controller can provide subranges of
* the GPIO number space to be handled by the controller
@@ -112,6 +114,8 @@ struct pinctrl_ops {
* this pin controller
* @npins: number of descriptors in the array, usually just ARRAY_SIZE()
* of the pins field above
+ * @complex_pin_desc: some pin controller needs more information than the pin
+ * name. In this case pins property uses u32 elements instead of strings
* @pctlops: pin control operation vtable, to support global concepts like
* grouping of pins, this is optional.
* @pmxops: pinmux operations vtable, if you support pinmuxing in your driver
@@ -126,6 +130,7 @@ struct pinctrl_desc {
const char *name;
struct pinctrl_pin_desc const *pins;
unsigned int npins;
+ bool complex_pin_desc;
const struct pinctrl_ops *pctlops;
const struct pinmux_ops *pmxops;
const struct pinconf_ops *confops;
--
2.2.0
^ permalink raw reply related [flat|nested] 14+ messages in thread
* [RFC PATCH 3/4] pinctrl: rough draft for a future controller
2015-04-02 9:38 ` Ludovic Desroches
@ 2015-04-02 9:38 ` Ludovic Desroches
-1 siblings, 0 replies; 14+ messages in thread
From: Ludovic Desroches @ 2015-04-02 9:38 UTC (permalink / raw)
To: linux-arm-kernel, linux-gpio, devicetree
Cc: linus.walleij, laurent.pinchart, swarren, s.hauer, tony,
nicolas.ferre, Ludovic Desroches
Draft for a future controller which can mux each pin to any functions.
There are up to 6 functions plus a gpio mode (gpio controller driver
won't be included in the pincontroller driver).
There is a concept of ioset. An ioset is a set of pins for a device.
A device can have several iosets.
There is no obligation to use the whole ioset, for example if you have a
mmc 4-bits data bus, you can use data4,5,6,7 for another devices.
The pincontroller has no knowledge about the iosets. So potentially you
don't have to take care about it BUT validation is done by ioset. It
means that if you mix device signals from several iosets, you may have
some bugs. That's why we need to warn the user if he mixes pins from
several iosets.
There is no chip dependant table, that's why groups (mainly used for
ioset and debug sysfs readability) are defined in the device tree.
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
---
drivers/pinctrl/Kconfig | 10 +
drivers/pinctrl/Makefile | 1 +
drivers/pinctrl/pinctrl-at91-pio4.c | 625 ++++++++++++++++++++++++++++++++++++
3 files changed, 636 insertions(+)
create mode 100644 drivers/pinctrl/pinctrl-at91-pio4.c
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index c6a66de..dfe76e9 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -67,6 +67,16 @@ config PINCTRL_AT91
help
Say Y here to enable the at91 pinctrl driver
+config PINCTRL_AT91PIO4
+ bool "AT91 PIO4 pinctrl driver"
+ depends on OF
+ depends on ARCH_AT91
+ select PINMUX
+ select PINCONF
+ select GENERIC_PINCONF
+ help
+ Say Y here to enable the at91-pio4 pinctrl driver
+
config PINCTRL_BAYTRAIL
bool "Intel Baytrail GPIO pin control"
depends on GPIOLIB && ACPI && X86
diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile
index 51f52d3..060dd0a 100644
--- a/drivers/pinctrl/Makefile
+++ b/drivers/pinctrl/Makefile
@@ -14,6 +14,7 @@ obj-$(CONFIG_PINCTRL_AS3722) += pinctrl-as3722.o
obj-$(CONFIG_PINCTRL_BF54x) += pinctrl-adi2-bf54x.o
obj-$(CONFIG_PINCTRL_BF60x) += pinctrl-adi2-bf60x.o
obj-$(CONFIG_PINCTRL_AT91) += pinctrl-at91.o
+obj-$(CONFIG_PINCTRL_AT91PIO4) += pinctrl-at91-pio4.o
obj-$(CONFIG_PINCTRL_BCM2835) += pinctrl-bcm2835.o
obj-$(CONFIG_PINCTRL_BAYTRAIL) += pinctrl-baytrail.o
obj-$(CONFIG_PINCTRL_BCM281XX) += pinctrl-bcm281xx.o
diff --git a/drivers/pinctrl/pinctrl-at91-pio4.c b/drivers/pinctrl/pinctrl-at91-pio4.c
new file mode 100644
index 0000000..4df2dd5
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-at91-pio4.c
@@ -0,0 +1,625 @@
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pinctrl/pinconf.h>
+#include <linux/pinctrl/pinconf-generic.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinmux.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include "core.h"
+#include "pinctrl-utils.h"
+
+#define ATMEL_PIO3_BANK_OFFSET 0x1000
+#define ATMEL_PIO3_PER 0x0000
+#define ATMEL_PIO3_PDR 0x0004
+#define ATMEL_PIO3_PSR 0x0008
+#define ATMEL_PIO3_OER 0x0010
+#define ATMEL_PIO3_ODR 0x0014
+#define ATMEL_PIO3_OSR 0x0018
+#define ATMEL_PIO3_IFER 0x0020
+#define ATMEL_PIO3_IFDR 0x0024
+#define ATMEL_PIO3_IFSR 0x0028
+#define ATMEL_PIO3_SODR 0x0030
+#define ATMEL_PIO3_CODR 0x0034
+#define ATMEL_PIO3_ODSR 0x0038
+#define ATMEL_PIO3_PDSR 0x003C
+#define ATMEL_PIO3_IER 0x0040
+#define ATMEL_PIO3_IDR 0x0044
+#define ATMEL_PIO3_IMR 0x0048
+#define ATMEL_PIO3_ISR 0x004C
+#define ATMEL_PIO3_MDER 0x0050
+#define ATMEL_PIO3_MDDR 0x0054
+#define ATMEL_PIO3_MDSR 0x0058
+#define ATMEL_PIO3_PUDR 0x0060
+#define ATMEL_PIO3_PUER 0x0064
+#define ATMEL_PIO3_PUSR 0x0068
+#define ATMEL_PIO3_ABCDSR1 0x0070
+#define ATMEL_PIO3_ABCDSR2 0x0074
+#define ATMEL_PIO3_IFSCDR 0x0080
+#define ATMEL_PIO3_IFSCER 0x0084
+#define ATMEL_PIO3_IFSCSR 0x0088
+#define ATMEL_PIO3_SCDR 0x008C
+#define ATMEL_PIO3_PPDDR 0x0090
+#define ATMEL_PIO3_PPDER 0x0094
+#define ATMEL_PIO3_PPDSR 0x0098
+#define ATMEL_PIO3_OWER 0x00A0
+#define ATMEL_PIO3_OWDR 0x00A4
+#define ATMEL_PIO3_OWSR 0x00A8
+
+struct atmel_group {
+ const char *name;
+ u32 *pins;
+ unsigned npins;
+};
+
+static const char * const atmel_functions[] = {
+ "A", "B", "C", "D", "E", "F",
+};
+
+const struct pinctrl_pin_desc atmel_pins[] = {
+ PINCTRL_PIN(0, "PA0"),
+ PINCTRL_PIN(1, "PA1"),
+ PINCTRL_PIN(2, "PA2"),
+ PINCTRL_PIN(3, "PA3"),
+ PINCTRL_PIN(4, "PA4"),
+ PINCTRL_PIN(5, "PA5"),
+ PINCTRL_PIN(6, "PA6"),
+ PINCTRL_PIN(7, "PA7"),
+ PINCTRL_PIN(8, "PA8"),
+ PINCTRL_PIN(9, "PA9"),
+ PINCTRL_PIN(10, "PA10"),
+ PINCTRL_PIN(11, "PA11"),
+ PINCTRL_PIN(12, "PA12"),
+ PINCTRL_PIN(13, "PA13"),
+ PINCTRL_PIN(14, "PA14"),
+ PINCTRL_PIN(15, "PA15"),
+ PINCTRL_PIN(16, "PA16"),
+ PINCTRL_PIN(17, "PA17"),
+ PINCTRL_PIN(18, "PA18"),
+ PINCTRL_PIN(19, "PA19"),
+ PINCTRL_PIN(20, "PA20"),
+ PINCTRL_PIN(21, "PA21"),
+ PINCTRL_PIN(22, "PA22"),
+ PINCTRL_PIN(23, "PA23"),
+ PINCTRL_PIN(24, "PA24"),
+ PINCTRL_PIN(25, "PA25"),
+ PINCTRL_PIN(26, "PA26"),
+ PINCTRL_PIN(27, "PA27"),
+ PINCTRL_PIN(28, "PA28"),
+ PINCTRL_PIN(29, "PA29"),
+ PINCTRL_PIN(30, "PA30"),
+ PINCTRL_PIN(31, "PA31"),
+ PINCTRL_PIN(32, "PB0"),
+ PINCTRL_PIN(33, "PB1"),
+ PINCTRL_PIN(34, "PB2"),
+ PINCTRL_PIN(35, "PB3"),
+ PINCTRL_PIN(36, "PB4"),
+ PINCTRL_PIN(37, "PB5"),
+ PINCTRL_PIN(38, "PB6"),
+ PINCTRL_PIN(39, "PB7"),
+ PINCTRL_PIN(40, "PB8"),
+ PINCTRL_PIN(41, "PB9"),
+ PINCTRL_PIN(42, "PB10"),
+ PINCTRL_PIN(43, "PB11"),
+ PINCTRL_PIN(44, "PB12"),
+ PINCTRL_PIN(45, "PB13"),
+ PINCTRL_PIN(46, "PB14"),
+ PINCTRL_PIN(47, "PB15"),
+ PINCTRL_PIN(48, "PB16"),
+ PINCTRL_PIN(49, "PB17"),
+ PINCTRL_PIN(50, "PB18"),
+ PINCTRL_PIN(51, "PB19"),
+ PINCTRL_PIN(52, "PB20"),
+ PINCTRL_PIN(53, "PB21"),
+ PINCTRL_PIN(54, "PB22"),
+ PINCTRL_PIN(55, "PB23"),
+ PINCTRL_PIN(56, "PB24"),
+ PINCTRL_PIN(57, "PB25"),
+ PINCTRL_PIN(58, "PB26"),
+ PINCTRL_PIN(59, "PB27"),
+ PINCTRL_PIN(60, "PB28"),
+ PINCTRL_PIN(61, "PB29"),
+ PINCTRL_PIN(62, "PB30"),
+ PINCTRL_PIN(63, "PB31"),
+ PINCTRL_PIN(64, "PC0"),
+ PINCTRL_PIN(65, "PC1"),
+ PINCTRL_PIN(66, "PC2"),
+ PINCTRL_PIN(67, "PC3"),
+ PINCTRL_PIN(68, "PC4"),
+ PINCTRL_PIN(69, "PC5"),
+ PINCTRL_PIN(70, "PC6"),
+ PINCTRL_PIN(71, "PC7"),
+ PINCTRL_PIN(72, "PC8"),
+ PINCTRL_PIN(73, "PC9"),
+ PINCTRL_PIN(74, "PC10"),
+ PINCTRL_PIN(75, "PC11"),
+ PINCTRL_PIN(76, "PC12"),
+ PINCTRL_PIN(77, "PC13"),
+ PINCTRL_PIN(78, "PC14"),
+ PINCTRL_PIN(79, "PC15"),
+ PINCTRL_PIN(80, "PC16"),
+ PINCTRL_PIN(81, "PC17"),
+ PINCTRL_PIN(82, "PC18"),
+ PINCTRL_PIN(83, "PC19"),
+ PINCTRL_PIN(84, "PC20"),
+ PINCTRL_PIN(85, "PC21"),
+ PINCTRL_PIN(86, "PC22"),
+ PINCTRL_PIN(87, "PC23"),
+ PINCTRL_PIN(88, "PC24"),
+ PINCTRL_PIN(89, "PC25"),
+ PINCTRL_PIN(90, "PC26"),
+ PINCTRL_PIN(91, "PC27"),
+ PINCTRL_PIN(92, "PC28"),
+ PINCTRL_PIN(93, "PC29"),
+ PINCTRL_PIN(94, "PC30"),
+ PINCTRL_PIN(95, "PC31"),
+ PINCTRL_PIN(96, "PD0"),
+ PINCTRL_PIN(97, "PD1"),
+ PINCTRL_PIN(98, "PD2"),
+ PINCTRL_PIN(99, "PD3"),
+ PINCTRL_PIN(100, "PD4"),
+ PINCTRL_PIN(101, "PD5"),
+ PINCTRL_PIN(102, "PD6"),
+ PINCTRL_PIN(103, "PD7"),
+ PINCTRL_PIN(104, "PD8"),
+ PINCTRL_PIN(105, "PD9"),
+ PINCTRL_PIN(106, "PD10"),
+ PINCTRL_PIN(107, "PD11"),
+ PINCTRL_PIN(108, "PD12"),
+ PINCTRL_PIN(109, "PD13"),
+ PINCTRL_PIN(110, "PD14"),
+ PINCTRL_PIN(111, "PD15"),
+ PINCTRL_PIN(112, "PD16"),
+ PINCTRL_PIN(113, "PD17"),
+ PINCTRL_PIN(114, "PD18"),
+ PINCTRL_PIN(115, "PD19"),
+ PINCTRL_PIN(116, "PD20"),
+ PINCTRL_PIN(117, "PD21"),
+ PINCTRL_PIN(118, "PD22"),
+ PINCTRL_PIN(119, "PD23"),
+ PINCTRL_PIN(120, "PD24"),
+ PINCTRL_PIN(121, "PD25"),
+ PINCTRL_PIN(122, "PD26"),
+ PINCTRL_PIN(123, "PD27"),
+ PINCTRL_PIN(124, "PD28"),
+ PINCTRL_PIN(125, "PD29"),
+ PINCTRL_PIN(126, "PD30"),
+ PINCTRL_PIN(127, "PD31"),
+ PINCTRL_PIN(128, "PE0"),
+ PINCTRL_PIN(129, "PE1"),
+ PINCTRL_PIN(130, "PE2"),
+ PINCTRL_PIN(131, "PE3"),
+ PINCTRL_PIN(132, "PE4"),
+ PINCTRL_PIN(133, "PE5"),
+ PINCTRL_PIN(134, "PE6"),
+ PINCTRL_PIN(135, "PE7"),
+ PINCTRL_PIN(136, "PE8"),
+ PINCTRL_PIN(137, "PE9"),
+ PINCTRL_PIN(138, "PE10"),
+ PINCTRL_PIN(139, "PE11"),
+ PINCTRL_PIN(140, "PE12"),
+ PINCTRL_PIN(141, "PE13"),
+ PINCTRL_PIN(142, "PE14"),
+ PINCTRL_PIN(143, "PE15"),
+ PINCTRL_PIN(144, "PE16"),
+ PINCTRL_PIN(145, "PE17"),
+ PINCTRL_PIN(146, "PE18"),
+ PINCTRL_PIN(147, "PE19"),
+ PINCTRL_PIN(148, "PE20"),
+ PINCTRL_PIN(149, "PE21"),
+ PINCTRL_PIN(150, "PE22"),
+ PINCTRL_PIN(151, "PE23"),
+ PINCTRL_PIN(152, "PE24"),
+ PINCTRL_PIN(153, "PE25"),
+ PINCTRL_PIN(154, "PE26"),
+ PINCTRL_PIN(155, "PE27"),
+ PINCTRL_PIN(156, "PE28"),
+ PINCTRL_PIN(157, "PE29"),
+ PINCTRL_PIN(158, "PE30"),
+ PINCTRL_PIN(159, "PE31"),
+};
+
+/**
+ * struct atmel_pinctrl - driver data
+ * @pctrl: pinctrl device
+ */
+struct atmel_pinctrl {
+ struct pinctrl_dev *pctrl;
+ struct regmap *regmap_base;
+ unsigned int nbanks;
+ unsigned int npins_per_bank;
+ struct atmel_group *groups;
+ unsigned int ngroups;
+ //struct atmel_function *funcs;
+ unsigned int nfuncs;
+};
+
+/* ----- pinctrl part ----- */
+
+static int atmel_pctrl_get_groups_count(struct pinctrl_dev *pctldev)
+{
+ struct atmel_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
+
+ return pctrl->ngroups;
+}
+
+static const char *atmel_pctrl_get_group_name(struct pinctrl_dev *pctldev,
+ unsigned selector)
+{
+ struct atmel_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
+
+ return pctrl->groups[selector].name;
+}
+
+static int atmel_get_group_pins(struct pinctrl_dev *pctldev,
+ unsigned selector,
+ const unsigned **pins,
+ unsigned *num_pins)
+{
+ struct atmel_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
+
+ *pins = pctrl->groups[selector].pins;
+ *num_pins = pctrl->groups[selector].npins;
+
+ return 0;
+}
+
+static const struct pinctrl_ops atmel_pctlops = {
+ .get_groups_count = atmel_pctrl_get_groups_count,
+ .get_group_name = atmel_pctrl_get_group_name,
+ .get_group_pins = atmel_get_group_pins,
+ .dt_node_to_map = pinconf_generic_dt_node_to_map_all,
+ .dt_free_map = pinctrl_utils_dt_free_map,
+};
+
+/* ----- pinmux part ----- */
+
+static int atmel_pmux_get_functions_count(struct pinctrl_dev *pctldev)
+{
+ return ARRAY_SIZE(atmel_functions);
+}
+
+static const char *atmel_pmux_get_function_name(struct pinctrl_dev *pctldev,
+ unsigned selector)
+{
+ return atmel_functions[selector];
+}
+
+static int atmel_pio3_set_mux(struct pinctrl_dev *pctldev,
+ unsigned function,
+ unsigned group)
+{
+ struct atmel_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
+
+ dev_dbg(pctldev->dev, "enable function %s group %s\n",
+ atmel_functions[function], pctrl->groups[group].name);
+
+ return 0;
+}
+
+static const struct pinmux_ops atmel_pio3_pmxops = {
+ .mux_per_pin = true,
+ .request = NULL,
+ .free = NULL,
+ .get_functions_count = atmel_pmux_get_functions_count,
+ .get_function_name = atmel_pmux_get_function_name,
+ .set_mux = atmel_pio3_set_mux,
+ .gpio_request_enable = NULL,
+ .gpio_disable_free = NULL,
+ .gpio_set_direction = NULL,
+};
+
+/* ----- pinconf part ----- */
+
+int atmel_pio3_pin_config_read(struct atmel_pinctrl *pctrl, unsigned reg, unsigned pin_id, u32 *res)
+{
+ unsigned bank, pin;
+
+ bank = pin_id / pctrl->npins_per_bank;
+ pin = pin_id % pctrl->npins_per_bank;
+ printk("bank %u, pin %u\n", bank, pin);
+
+ return regmap_read(pctrl->regmap_base, bank * ATMEL_PIO3_BANK_OFFSET + reg, res);
+}
+
+void atmel_pio3_pin_config_write(struct atmel_pinctrl *pctrl, unsigned reg, unsigned pin_id)
+{
+ unsigned bank, mask, pin;
+
+ bank = pin_id / pctrl->npins_per_bank;
+ pin = pin_id % pctrl->npins_per_bank;
+ mask = 1 << pin;
+
+ regmap_write(pctrl->regmap_base,
+ bank * ATMEL_PIO3_BANK_OFFSET +reg,
+ mask);
+}
+
+static int atmel_pio3_pin_config_get(struct pinctrl_dev *pctldev,
+ unsigned pin,
+ unsigned long *config)
+{
+ struct atmel_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
+ unsigned int arg = 0;
+ unsigned int param = pinconf_to_config_param(*config);
+ unsigned mask;
+ u32 res;
+ int ret;
+
+ mask = 1 << pin;
+
+ switch (param) {
+ case PIN_CONFIG_BIAS_PULL_UP:
+ ret = atmel_pio3_pin_config_read(pctrl, ATMEL_PIO3_PUSR, pin, &res);
+ if (ret)
+ return -EIO;
+ if (!(res & mask))
+ return -EINVAL;
+ arg = 1;
+ break;
+ case PIN_CONFIG_BIAS_PULL_DOWN:
+ ret = atmel_pio3_pin_config_read(pctrl, ATMEL_PIO3_PPDSR, pin, &res);
+ if (ret)
+ return -EIO;
+ if (!(res & mask))
+ return -EINVAL;
+ arg = 1;
+ break;
+ case PIN_CONFIG_BIAS_DISABLE:
+ ret = atmel_pio3_pin_config_read(pctrl, ATMEL_PIO3_PUSR, pin, &res);
+ if (ret)
+ return -EIO;
+ if (!(res & mask))
+ return -EINVAL;
+ arg = 1;
+ break;
+ case PIN_CONFIG_DRIVE_OPEN_DRAIN:
+ ret = atmel_pio3_pin_config_read(pctrl, ATMEL_PIO3_MDSR, pin, &res);
+ if (ret)
+ return -EIO;
+ if (!(res & mask))
+ return -EINVAL;
+ arg = 1;
+ break;
+ default:
+ return -ENOTSUPP;
+ }
+
+ *config = pinconf_to_config_packed(param, arg);
+ return 0;
+}
+
+static int atmel_pio3_pin_config_set(struct pinctrl_dev *pctldev,
+ unsigned pin,
+ unsigned long *configs,
+ unsigned num_configs)
+{
+ struct atmel_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
+ int i;
+
+ for (i = 0; i < num_configs; i++) {
+ unsigned int param = pinconf_to_config_param(configs[i]);
+ //unsigned int arg = pinconf_to_config_argument(configs[i]);
+
+ dev_dbg(pctldev->dev, "%s: pin=%u, config=0x%lx\n",
+ __func__, pin, configs[i]);
+
+ switch(param) {
+ case PIN_CONFIG_BIAS_DISABLE:
+ atmel_pio3_pin_config_write(pctrl, ATMEL_PIO3_PUDR, pin);
+ atmel_pio3_pin_config_write(pctrl, ATMEL_PIO3_PPDDR, pin);
+ break;
+ case PIN_CONFIG_BIAS_PULL_UP:
+ atmel_pio3_pin_config_write(pctrl, ATMEL_PIO3_PUER, pin);
+ break;
+ case PIN_CONFIG_BIAS_PULL_DOWN:
+ atmel_pio3_pin_config_write(pctrl, ATMEL_PIO3_PPDER, pin);
+ break;
+ case PIN_CONFIG_DRIVE_OPEN_DRAIN:
+ atmel_pio3_pin_config_write(pctrl, ATMEL_PIO3_MDER, pin);
+ break;
+ case PIN_CONFIG_BIAS_HIGH_IMPEDANCE:
+ case PIN_CONFIG_BIAS_BUS_HOLD:
+ case PIN_CONFIG_BIAS_PULL_PIN_DEFAULT:
+ case PIN_CONFIG_DRIVE_PUSH_PULL:
+ case PIN_CONFIG_DRIVE_OPEN_SOURCE:
+ case PIN_CONFIG_DRIVE_STRENGTH:
+ case PIN_CONFIG_INPUT_ENABLE:
+ case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
+ case PIN_CONFIG_INPUT_SCHMITT:
+ case PIN_CONFIG_INPUT_DEBOUNCE:
+ case PIN_CONFIG_POWER_SOURCE:
+ case PIN_CONFIG_SLEW_RATE:
+ case PIN_CONFIG_LOW_POWER_MODE:
+ case PIN_CONFIG_OUTPUT:
+ default:
+ dev_warn(pctldev->dev,
+ "unsupported configuration parameter: %u\n",
+ param);
+ continue;
+ }
+ }
+
+ return 0;
+}
+
+static const struct pinconf_ops atmel_pio3_confops = {
+ .is_generic = true,
+ .pin_config_get = atmel_pio3_pin_config_get,
+ .pin_config_set = atmel_pio3_pin_config_set,
+ .pin_config_group_get = NULL,
+ .pin_config_group_set = NULL,
+ .pin_config_dbg_parse_modify = NULL,
+ .pin_config_dbg_show = NULL,
+ .pin_config_group_dbg_show = NULL,
+ .pin_config_config_dbg_show = NULL,
+};
+
+static struct pinctrl_desc atmel_sama5d4_pctrl_desc = {
+ .name = "atmel_sama5d4_pinctrl",
+ .pins = atmel_pins,
+ .npins = 160,
+ .complex_pin_desc = true,
+ .pctlops = &atmel_pctlops,
+ .pmxops = &atmel_pio3_pmxops,
+ .confops = &atmel_pio3_confops,
+ .owner = THIS_MODULE,
+};
+
+static const struct of_device_id atmel_pinctrl_of_match[] = {
+ {
+ .compatible = "atmel,sama5d4-pinctrl",
+ .data = &atmel_sama5d4_pctrl_desc,
+ }, {
+ /* sentinel */
+ }
+};
+MODULE_DEVICE_TABLE(of, atmel_pinctrl_of_match);
+
+static struct pinctrl_desc *atmel_get_pctrl_desc(struct platform_device *pdev)
+{
+ const struct of_device_id *match;
+
+ match = of_match_node(atmel_pinctrl_of_match, pdev->dev.of_node);
+ if (!match)
+ return NULL;
+ return (struct pinctrl_desc *) match->data;
+}
+
+static int atmel_pinctrl_probe(struct platform_device *pdev)
+{
+ int ret;
+ struct atmel_pinctrl *pctrl;
+ struct pinctrl_desc *pctrl_desc;
+ struct device_node *np = pdev->dev.of_node, *regmap_np;
+
+ struct device_node *defs_np, *group_np;
+ int i, j;
+ struct atmel_group *group;
+ unsigned pin_number;
+ const struct pinctrl_pin_desc *pin_desc;
+ u32 pingrp_pin;
+ int ioset;
+
+ if (!np) {
+ dev_err(&pdev->dev, "device tree node not found\n");
+ return -ENODEV;
+ }
+
+ pctrl = devm_kzalloc(&pdev->dev, sizeof(*pctrl), GFP_KERNEL);
+ if (!pctrl)
+ return -ENOMEM;
+
+ /* Get pinctrl descriptor according to the device used. */
+ pctrl_desc = atmel_get_pctrl_desc(pdev);
+ if (!pctrl_desc)
+ return -EINVAL;
+
+ /* Some registers are shared with the gpio controller. */
+ regmap_np = of_parse_phandle(np, "atmel,pio_reg", 0);
+ if (regmap_np) {
+ pctrl->regmap_base = syscon_node_to_regmap(regmap_np);
+ if (IS_ERR(pctrl->regmap_base)) {
+ dev_err(&pdev->dev, "can't get regmap\n");
+ return PTR_ERR(pctrl->regmap_base);
+ }
+ } else {
+ dev_err(&pdev->dev, "atmel,pio_reg property is missing\n");
+ return -EINVAL;
+ }
+
+ pctrl->npins_per_bank = 32;
+
+ /* */
+ defs_np = of_find_node_by_name(np, "group_defs");
+ if (!defs_np) {
+ dev_err(&pdev->dev, "pinctrl_defs not found\n");
+ //TODO
+ }
+ /* Count funcs and groups. */
+ pctrl->ngroups = of_get_child_count(defs_np);
+
+ dev_dbg(&pdev->dev, "%u groups\n", pctrl->ngroups);
+
+ pctrl->groups = devm_kzalloc(&pdev->dev, sizeof(*pctrl->groups) * pctrl->ngroups, GFP_KERNEL);
+ //if (!groups) TODO
+ group = pctrl->groups;
+
+ dev_dbg(&pdev->dev, "parsing groups...\n");
+ i = 0;
+ ioset = -1;
+ for_each_child_of_node(defs_np, group_np) {
+ group->name = group_np->name;
+ group->npins = of_property_count_u32_elems(group_np, "pins");
+ dev_dbg(&pdev->dev, "%s with %u pin(s)\n",
+ group->name, group->npins);
+ group->pins = devm_kzalloc(&pdev->dev, sizeof(*group->pins) * group->npins, GFP_KERNEL);
+ //if (!group->pins) TODO
+ for (i = 0; i < group->npins; i++) {
+ ret = of_property_read_u32_index(group_np, "pins", i, &pingrp_pin);
+ //if (ret) TODO
+ group->pins[i] = pingrp_pin & PINCTRL_PIN_MASK;
+ if (ioset < 0)
+ ioset = pingrp_pin >> 16;
+ if ((pingrp_pin >> 16) != ioset)
+ dev_warn(&pdev->dev,
+ "/!\\ pins from group %s are not using the same ioset /!\\\n",
+ group->name);
+ }
+
+ group++;
+ }
+
+ /* debug */
+ for (i = 0; i < pctrl->ngroups; i++) {
+ group = &pctrl->groups[i];
+ dev_dbg(&pdev->dev, "registring %s, %u pin(s):\n",
+ group->name, group->npins);
+ for (j = 0; j < group->npins; j++) {
+ pin_number = group->pins[j];
+ pin_desc = &pctrl_desc->pins[pin_number];
+ dev_dbg(&pdev->dev, "%s (%u)",
+ pin_desc->name,
+ pin_desc->number);
+ }
+ }
+ /* end of debug */
+
+ pctrl->pctrl = pinctrl_register(pctrl_desc, &pdev->dev, pctrl);
+ if (!pctrl->pctrl) {
+ dev_err(&pdev->dev, "pinctrl registration failed\n");
+ return -ENOMEM;
+ }
+
+ platform_set_drvdata(pdev, pctrl);
+
+ dev_info(&pdev->dev, "atmel pinctrl initialized\n");
+
+ return 0;
+}
+
+int atmel_pinctrl_remove(struct platform_device *pdev)
+{
+ struct atmel_pinctrl *pctrl = platform_get_drvdata(pdev);
+
+ pinctrl_unregister(pctrl->pctrl);
+
+ return 0;
+}
+
+static struct platform_driver atmel_pinctrl_driver = {
+ .driver = {
+ .name = "atmel-pinctrl",
+ .of_match_table = atmel_pinctrl_of_match,
+ },
+ .probe = atmel_pinctrl_probe,
+ .remove = atmel_pinctrl_remove,
+};
+
+module_platform_driver(atmel_pinctrl_driver);
+
+MODULE_AUTHOR(Ludovic Desroches <ludovic.desroches@atmel.com>);
+MODULE_DESCRIPTION("Atmel new pinctrl driver");
+MODULE_LICENSE("GPL");
--
2.2.0
^ permalink raw reply related [flat|nested] 14+ messages in thread
* [RFC PATCH 3/4] pinctrl: rough draft for a future controller
@ 2015-04-02 9:38 ` Ludovic Desroches
0 siblings, 0 replies; 14+ messages in thread
From: Ludovic Desroches @ 2015-04-02 9:38 UTC (permalink / raw)
To: linux-arm-kernel
Draft for a future controller which can mux each pin to any functions.
There are up to 6 functions plus a gpio mode (gpio controller driver
won't be included in the pincontroller driver).
There is a concept of ioset. An ioset is a set of pins for a device.
A device can have several iosets.
There is no obligation to use the whole ioset, for example if you have a
mmc 4-bits data bus, you can use data4,5,6,7 for another devices.
The pincontroller has no knowledge about the iosets. So potentially you
don't have to take care about it BUT validation is done by ioset. It
means that if you mix device signals from several iosets, you may have
some bugs. That's why we need to warn the user if he mixes pins from
several iosets.
There is no chip dependant table, that's why groups (mainly used for
ioset and debug sysfs readability) are defined in the device tree.
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
---
drivers/pinctrl/Kconfig | 10 +
drivers/pinctrl/Makefile | 1 +
drivers/pinctrl/pinctrl-at91-pio4.c | 625 ++++++++++++++++++++++++++++++++++++
3 files changed, 636 insertions(+)
create mode 100644 drivers/pinctrl/pinctrl-at91-pio4.c
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index c6a66de..dfe76e9 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -67,6 +67,16 @@ config PINCTRL_AT91
help
Say Y here to enable the at91 pinctrl driver
+config PINCTRL_AT91PIO4
+ bool "AT91 PIO4 pinctrl driver"
+ depends on OF
+ depends on ARCH_AT91
+ select PINMUX
+ select PINCONF
+ select GENERIC_PINCONF
+ help
+ Say Y here to enable the at91-pio4 pinctrl driver
+
config PINCTRL_BAYTRAIL
bool "Intel Baytrail GPIO pin control"
depends on GPIOLIB && ACPI && X86
diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile
index 51f52d3..060dd0a 100644
--- a/drivers/pinctrl/Makefile
+++ b/drivers/pinctrl/Makefile
@@ -14,6 +14,7 @@ obj-$(CONFIG_PINCTRL_AS3722) += pinctrl-as3722.o
obj-$(CONFIG_PINCTRL_BF54x) += pinctrl-adi2-bf54x.o
obj-$(CONFIG_PINCTRL_BF60x) += pinctrl-adi2-bf60x.o
obj-$(CONFIG_PINCTRL_AT91) += pinctrl-at91.o
+obj-$(CONFIG_PINCTRL_AT91PIO4) += pinctrl-at91-pio4.o
obj-$(CONFIG_PINCTRL_BCM2835) += pinctrl-bcm2835.o
obj-$(CONFIG_PINCTRL_BAYTRAIL) += pinctrl-baytrail.o
obj-$(CONFIG_PINCTRL_BCM281XX) += pinctrl-bcm281xx.o
diff --git a/drivers/pinctrl/pinctrl-at91-pio4.c b/drivers/pinctrl/pinctrl-at91-pio4.c
new file mode 100644
index 0000000..4df2dd5
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-at91-pio4.c
@@ -0,0 +1,625 @@
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pinctrl/pinconf.h>
+#include <linux/pinctrl/pinconf-generic.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinmux.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include "core.h"
+#include "pinctrl-utils.h"
+
+#define ATMEL_PIO3_BANK_OFFSET 0x1000
+#define ATMEL_PIO3_PER 0x0000
+#define ATMEL_PIO3_PDR 0x0004
+#define ATMEL_PIO3_PSR 0x0008
+#define ATMEL_PIO3_OER 0x0010
+#define ATMEL_PIO3_ODR 0x0014
+#define ATMEL_PIO3_OSR 0x0018
+#define ATMEL_PIO3_IFER 0x0020
+#define ATMEL_PIO3_IFDR 0x0024
+#define ATMEL_PIO3_IFSR 0x0028
+#define ATMEL_PIO3_SODR 0x0030
+#define ATMEL_PIO3_CODR 0x0034
+#define ATMEL_PIO3_ODSR 0x0038
+#define ATMEL_PIO3_PDSR 0x003C
+#define ATMEL_PIO3_IER 0x0040
+#define ATMEL_PIO3_IDR 0x0044
+#define ATMEL_PIO3_IMR 0x0048
+#define ATMEL_PIO3_ISR 0x004C
+#define ATMEL_PIO3_MDER 0x0050
+#define ATMEL_PIO3_MDDR 0x0054
+#define ATMEL_PIO3_MDSR 0x0058
+#define ATMEL_PIO3_PUDR 0x0060
+#define ATMEL_PIO3_PUER 0x0064
+#define ATMEL_PIO3_PUSR 0x0068
+#define ATMEL_PIO3_ABCDSR1 0x0070
+#define ATMEL_PIO3_ABCDSR2 0x0074
+#define ATMEL_PIO3_IFSCDR 0x0080
+#define ATMEL_PIO3_IFSCER 0x0084
+#define ATMEL_PIO3_IFSCSR 0x0088
+#define ATMEL_PIO3_SCDR 0x008C
+#define ATMEL_PIO3_PPDDR 0x0090
+#define ATMEL_PIO3_PPDER 0x0094
+#define ATMEL_PIO3_PPDSR 0x0098
+#define ATMEL_PIO3_OWER 0x00A0
+#define ATMEL_PIO3_OWDR 0x00A4
+#define ATMEL_PIO3_OWSR 0x00A8
+
+struct atmel_group {
+ const char *name;
+ u32 *pins;
+ unsigned npins;
+};
+
+static const char * const atmel_functions[] = {
+ "A", "B", "C", "D", "E", "F",
+};
+
+const struct pinctrl_pin_desc atmel_pins[] = {
+ PINCTRL_PIN(0, "PA0"),
+ PINCTRL_PIN(1, "PA1"),
+ PINCTRL_PIN(2, "PA2"),
+ PINCTRL_PIN(3, "PA3"),
+ PINCTRL_PIN(4, "PA4"),
+ PINCTRL_PIN(5, "PA5"),
+ PINCTRL_PIN(6, "PA6"),
+ PINCTRL_PIN(7, "PA7"),
+ PINCTRL_PIN(8, "PA8"),
+ PINCTRL_PIN(9, "PA9"),
+ PINCTRL_PIN(10, "PA10"),
+ PINCTRL_PIN(11, "PA11"),
+ PINCTRL_PIN(12, "PA12"),
+ PINCTRL_PIN(13, "PA13"),
+ PINCTRL_PIN(14, "PA14"),
+ PINCTRL_PIN(15, "PA15"),
+ PINCTRL_PIN(16, "PA16"),
+ PINCTRL_PIN(17, "PA17"),
+ PINCTRL_PIN(18, "PA18"),
+ PINCTRL_PIN(19, "PA19"),
+ PINCTRL_PIN(20, "PA20"),
+ PINCTRL_PIN(21, "PA21"),
+ PINCTRL_PIN(22, "PA22"),
+ PINCTRL_PIN(23, "PA23"),
+ PINCTRL_PIN(24, "PA24"),
+ PINCTRL_PIN(25, "PA25"),
+ PINCTRL_PIN(26, "PA26"),
+ PINCTRL_PIN(27, "PA27"),
+ PINCTRL_PIN(28, "PA28"),
+ PINCTRL_PIN(29, "PA29"),
+ PINCTRL_PIN(30, "PA30"),
+ PINCTRL_PIN(31, "PA31"),
+ PINCTRL_PIN(32, "PB0"),
+ PINCTRL_PIN(33, "PB1"),
+ PINCTRL_PIN(34, "PB2"),
+ PINCTRL_PIN(35, "PB3"),
+ PINCTRL_PIN(36, "PB4"),
+ PINCTRL_PIN(37, "PB5"),
+ PINCTRL_PIN(38, "PB6"),
+ PINCTRL_PIN(39, "PB7"),
+ PINCTRL_PIN(40, "PB8"),
+ PINCTRL_PIN(41, "PB9"),
+ PINCTRL_PIN(42, "PB10"),
+ PINCTRL_PIN(43, "PB11"),
+ PINCTRL_PIN(44, "PB12"),
+ PINCTRL_PIN(45, "PB13"),
+ PINCTRL_PIN(46, "PB14"),
+ PINCTRL_PIN(47, "PB15"),
+ PINCTRL_PIN(48, "PB16"),
+ PINCTRL_PIN(49, "PB17"),
+ PINCTRL_PIN(50, "PB18"),
+ PINCTRL_PIN(51, "PB19"),
+ PINCTRL_PIN(52, "PB20"),
+ PINCTRL_PIN(53, "PB21"),
+ PINCTRL_PIN(54, "PB22"),
+ PINCTRL_PIN(55, "PB23"),
+ PINCTRL_PIN(56, "PB24"),
+ PINCTRL_PIN(57, "PB25"),
+ PINCTRL_PIN(58, "PB26"),
+ PINCTRL_PIN(59, "PB27"),
+ PINCTRL_PIN(60, "PB28"),
+ PINCTRL_PIN(61, "PB29"),
+ PINCTRL_PIN(62, "PB30"),
+ PINCTRL_PIN(63, "PB31"),
+ PINCTRL_PIN(64, "PC0"),
+ PINCTRL_PIN(65, "PC1"),
+ PINCTRL_PIN(66, "PC2"),
+ PINCTRL_PIN(67, "PC3"),
+ PINCTRL_PIN(68, "PC4"),
+ PINCTRL_PIN(69, "PC5"),
+ PINCTRL_PIN(70, "PC6"),
+ PINCTRL_PIN(71, "PC7"),
+ PINCTRL_PIN(72, "PC8"),
+ PINCTRL_PIN(73, "PC9"),
+ PINCTRL_PIN(74, "PC10"),
+ PINCTRL_PIN(75, "PC11"),
+ PINCTRL_PIN(76, "PC12"),
+ PINCTRL_PIN(77, "PC13"),
+ PINCTRL_PIN(78, "PC14"),
+ PINCTRL_PIN(79, "PC15"),
+ PINCTRL_PIN(80, "PC16"),
+ PINCTRL_PIN(81, "PC17"),
+ PINCTRL_PIN(82, "PC18"),
+ PINCTRL_PIN(83, "PC19"),
+ PINCTRL_PIN(84, "PC20"),
+ PINCTRL_PIN(85, "PC21"),
+ PINCTRL_PIN(86, "PC22"),
+ PINCTRL_PIN(87, "PC23"),
+ PINCTRL_PIN(88, "PC24"),
+ PINCTRL_PIN(89, "PC25"),
+ PINCTRL_PIN(90, "PC26"),
+ PINCTRL_PIN(91, "PC27"),
+ PINCTRL_PIN(92, "PC28"),
+ PINCTRL_PIN(93, "PC29"),
+ PINCTRL_PIN(94, "PC30"),
+ PINCTRL_PIN(95, "PC31"),
+ PINCTRL_PIN(96, "PD0"),
+ PINCTRL_PIN(97, "PD1"),
+ PINCTRL_PIN(98, "PD2"),
+ PINCTRL_PIN(99, "PD3"),
+ PINCTRL_PIN(100, "PD4"),
+ PINCTRL_PIN(101, "PD5"),
+ PINCTRL_PIN(102, "PD6"),
+ PINCTRL_PIN(103, "PD7"),
+ PINCTRL_PIN(104, "PD8"),
+ PINCTRL_PIN(105, "PD9"),
+ PINCTRL_PIN(106, "PD10"),
+ PINCTRL_PIN(107, "PD11"),
+ PINCTRL_PIN(108, "PD12"),
+ PINCTRL_PIN(109, "PD13"),
+ PINCTRL_PIN(110, "PD14"),
+ PINCTRL_PIN(111, "PD15"),
+ PINCTRL_PIN(112, "PD16"),
+ PINCTRL_PIN(113, "PD17"),
+ PINCTRL_PIN(114, "PD18"),
+ PINCTRL_PIN(115, "PD19"),
+ PINCTRL_PIN(116, "PD20"),
+ PINCTRL_PIN(117, "PD21"),
+ PINCTRL_PIN(118, "PD22"),
+ PINCTRL_PIN(119, "PD23"),
+ PINCTRL_PIN(120, "PD24"),
+ PINCTRL_PIN(121, "PD25"),
+ PINCTRL_PIN(122, "PD26"),
+ PINCTRL_PIN(123, "PD27"),
+ PINCTRL_PIN(124, "PD28"),
+ PINCTRL_PIN(125, "PD29"),
+ PINCTRL_PIN(126, "PD30"),
+ PINCTRL_PIN(127, "PD31"),
+ PINCTRL_PIN(128, "PE0"),
+ PINCTRL_PIN(129, "PE1"),
+ PINCTRL_PIN(130, "PE2"),
+ PINCTRL_PIN(131, "PE3"),
+ PINCTRL_PIN(132, "PE4"),
+ PINCTRL_PIN(133, "PE5"),
+ PINCTRL_PIN(134, "PE6"),
+ PINCTRL_PIN(135, "PE7"),
+ PINCTRL_PIN(136, "PE8"),
+ PINCTRL_PIN(137, "PE9"),
+ PINCTRL_PIN(138, "PE10"),
+ PINCTRL_PIN(139, "PE11"),
+ PINCTRL_PIN(140, "PE12"),
+ PINCTRL_PIN(141, "PE13"),
+ PINCTRL_PIN(142, "PE14"),
+ PINCTRL_PIN(143, "PE15"),
+ PINCTRL_PIN(144, "PE16"),
+ PINCTRL_PIN(145, "PE17"),
+ PINCTRL_PIN(146, "PE18"),
+ PINCTRL_PIN(147, "PE19"),
+ PINCTRL_PIN(148, "PE20"),
+ PINCTRL_PIN(149, "PE21"),
+ PINCTRL_PIN(150, "PE22"),
+ PINCTRL_PIN(151, "PE23"),
+ PINCTRL_PIN(152, "PE24"),
+ PINCTRL_PIN(153, "PE25"),
+ PINCTRL_PIN(154, "PE26"),
+ PINCTRL_PIN(155, "PE27"),
+ PINCTRL_PIN(156, "PE28"),
+ PINCTRL_PIN(157, "PE29"),
+ PINCTRL_PIN(158, "PE30"),
+ PINCTRL_PIN(159, "PE31"),
+};
+
+/**
+ * struct atmel_pinctrl - driver data
+ * @pctrl: pinctrl device
+ */
+struct atmel_pinctrl {
+ struct pinctrl_dev *pctrl;
+ struct regmap *regmap_base;
+ unsigned int nbanks;
+ unsigned int npins_per_bank;
+ struct atmel_group *groups;
+ unsigned int ngroups;
+ //struct atmel_function *funcs;
+ unsigned int nfuncs;
+};
+
+/* ----- pinctrl part ----- */
+
+static int atmel_pctrl_get_groups_count(struct pinctrl_dev *pctldev)
+{
+ struct atmel_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
+
+ return pctrl->ngroups;
+}
+
+static const char *atmel_pctrl_get_group_name(struct pinctrl_dev *pctldev,
+ unsigned selector)
+{
+ struct atmel_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
+
+ return pctrl->groups[selector].name;
+}
+
+static int atmel_get_group_pins(struct pinctrl_dev *pctldev,
+ unsigned selector,
+ const unsigned **pins,
+ unsigned *num_pins)
+{
+ struct atmel_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
+
+ *pins = pctrl->groups[selector].pins;
+ *num_pins = pctrl->groups[selector].npins;
+
+ return 0;
+}
+
+static const struct pinctrl_ops atmel_pctlops = {
+ .get_groups_count = atmel_pctrl_get_groups_count,
+ .get_group_name = atmel_pctrl_get_group_name,
+ .get_group_pins = atmel_get_group_pins,
+ .dt_node_to_map = pinconf_generic_dt_node_to_map_all,
+ .dt_free_map = pinctrl_utils_dt_free_map,
+};
+
+/* ----- pinmux part ----- */
+
+static int atmel_pmux_get_functions_count(struct pinctrl_dev *pctldev)
+{
+ return ARRAY_SIZE(atmel_functions);
+}
+
+static const char *atmel_pmux_get_function_name(struct pinctrl_dev *pctldev,
+ unsigned selector)
+{
+ return atmel_functions[selector];
+}
+
+static int atmel_pio3_set_mux(struct pinctrl_dev *pctldev,
+ unsigned function,
+ unsigned group)
+{
+ struct atmel_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
+
+ dev_dbg(pctldev->dev, "enable function %s group %s\n",
+ atmel_functions[function], pctrl->groups[group].name);
+
+ return 0;
+}
+
+static const struct pinmux_ops atmel_pio3_pmxops = {
+ .mux_per_pin = true,
+ .request = NULL,
+ .free = NULL,
+ .get_functions_count = atmel_pmux_get_functions_count,
+ .get_function_name = atmel_pmux_get_function_name,
+ .set_mux = atmel_pio3_set_mux,
+ .gpio_request_enable = NULL,
+ .gpio_disable_free = NULL,
+ .gpio_set_direction = NULL,
+};
+
+/* ----- pinconf part ----- */
+
+int atmel_pio3_pin_config_read(struct atmel_pinctrl *pctrl, unsigned reg, unsigned pin_id, u32 *res)
+{
+ unsigned bank, pin;
+
+ bank = pin_id / pctrl->npins_per_bank;
+ pin = pin_id % pctrl->npins_per_bank;
+ printk("bank %u, pin %u\n", bank, pin);
+
+ return regmap_read(pctrl->regmap_base, bank * ATMEL_PIO3_BANK_OFFSET + reg, res);
+}
+
+void atmel_pio3_pin_config_write(struct atmel_pinctrl *pctrl, unsigned reg, unsigned pin_id)
+{
+ unsigned bank, mask, pin;
+
+ bank = pin_id / pctrl->npins_per_bank;
+ pin = pin_id % pctrl->npins_per_bank;
+ mask = 1 << pin;
+
+ regmap_write(pctrl->regmap_base,
+ bank * ATMEL_PIO3_BANK_OFFSET +reg,
+ mask);
+}
+
+static int atmel_pio3_pin_config_get(struct pinctrl_dev *pctldev,
+ unsigned pin,
+ unsigned long *config)
+{
+ struct atmel_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
+ unsigned int arg = 0;
+ unsigned int param = pinconf_to_config_param(*config);
+ unsigned mask;
+ u32 res;
+ int ret;
+
+ mask = 1 << pin;
+
+ switch (param) {
+ case PIN_CONFIG_BIAS_PULL_UP:
+ ret = atmel_pio3_pin_config_read(pctrl, ATMEL_PIO3_PUSR, pin, &res);
+ if (ret)
+ return -EIO;
+ if (!(res & mask))
+ return -EINVAL;
+ arg = 1;
+ break;
+ case PIN_CONFIG_BIAS_PULL_DOWN:
+ ret = atmel_pio3_pin_config_read(pctrl, ATMEL_PIO3_PPDSR, pin, &res);
+ if (ret)
+ return -EIO;
+ if (!(res & mask))
+ return -EINVAL;
+ arg = 1;
+ break;
+ case PIN_CONFIG_BIAS_DISABLE:
+ ret = atmel_pio3_pin_config_read(pctrl, ATMEL_PIO3_PUSR, pin, &res);
+ if (ret)
+ return -EIO;
+ if (!(res & mask))
+ return -EINVAL;
+ arg = 1;
+ break;
+ case PIN_CONFIG_DRIVE_OPEN_DRAIN:
+ ret = atmel_pio3_pin_config_read(pctrl, ATMEL_PIO3_MDSR, pin, &res);
+ if (ret)
+ return -EIO;
+ if (!(res & mask))
+ return -EINVAL;
+ arg = 1;
+ break;
+ default:
+ return -ENOTSUPP;
+ }
+
+ *config = pinconf_to_config_packed(param, arg);
+ return 0;
+}
+
+static int atmel_pio3_pin_config_set(struct pinctrl_dev *pctldev,
+ unsigned pin,
+ unsigned long *configs,
+ unsigned num_configs)
+{
+ struct atmel_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
+ int i;
+
+ for (i = 0; i < num_configs; i++) {
+ unsigned int param = pinconf_to_config_param(configs[i]);
+ //unsigned int arg = pinconf_to_config_argument(configs[i]);
+
+ dev_dbg(pctldev->dev, "%s: pin=%u, config=0x%lx\n",
+ __func__, pin, configs[i]);
+
+ switch(param) {
+ case PIN_CONFIG_BIAS_DISABLE:
+ atmel_pio3_pin_config_write(pctrl, ATMEL_PIO3_PUDR, pin);
+ atmel_pio3_pin_config_write(pctrl, ATMEL_PIO3_PPDDR, pin);
+ break;
+ case PIN_CONFIG_BIAS_PULL_UP:
+ atmel_pio3_pin_config_write(pctrl, ATMEL_PIO3_PUER, pin);
+ break;
+ case PIN_CONFIG_BIAS_PULL_DOWN:
+ atmel_pio3_pin_config_write(pctrl, ATMEL_PIO3_PPDER, pin);
+ break;
+ case PIN_CONFIG_DRIVE_OPEN_DRAIN:
+ atmel_pio3_pin_config_write(pctrl, ATMEL_PIO3_MDER, pin);
+ break;
+ case PIN_CONFIG_BIAS_HIGH_IMPEDANCE:
+ case PIN_CONFIG_BIAS_BUS_HOLD:
+ case PIN_CONFIG_BIAS_PULL_PIN_DEFAULT:
+ case PIN_CONFIG_DRIVE_PUSH_PULL:
+ case PIN_CONFIG_DRIVE_OPEN_SOURCE:
+ case PIN_CONFIG_DRIVE_STRENGTH:
+ case PIN_CONFIG_INPUT_ENABLE:
+ case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
+ case PIN_CONFIG_INPUT_SCHMITT:
+ case PIN_CONFIG_INPUT_DEBOUNCE:
+ case PIN_CONFIG_POWER_SOURCE:
+ case PIN_CONFIG_SLEW_RATE:
+ case PIN_CONFIG_LOW_POWER_MODE:
+ case PIN_CONFIG_OUTPUT:
+ default:
+ dev_warn(pctldev->dev,
+ "unsupported configuration parameter: %u\n",
+ param);
+ continue;
+ }
+ }
+
+ return 0;
+}
+
+static const struct pinconf_ops atmel_pio3_confops = {
+ .is_generic = true,
+ .pin_config_get = atmel_pio3_pin_config_get,
+ .pin_config_set = atmel_pio3_pin_config_set,
+ .pin_config_group_get = NULL,
+ .pin_config_group_set = NULL,
+ .pin_config_dbg_parse_modify = NULL,
+ .pin_config_dbg_show = NULL,
+ .pin_config_group_dbg_show = NULL,
+ .pin_config_config_dbg_show = NULL,
+};
+
+static struct pinctrl_desc atmel_sama5d4_pctrl_desc = {
+ .name = "atmel_sama5d4_pinctrl",
+ .pins = atmel_pins,
+ .npins = 160,
+ .complex_pin_desc = true,
+ .pctlops = &atmel_pctlops,
+ .pmxops = &atmel_pio3_pmxops,
+ .confops = &atmel_pio3_confops,
+ .owner = THIS_MODULE,
+};
+
+static const struct of_device_id atmel_pinctrl_of_match[] = {
+ {
+ .compatible = "atmel,sama5d4-pinctrl",
+ .data = &atmel_sama5d4_pctrl_desc,
+ }, {
+ /* sentinel */
+ }
+};
+MODULE_DEVICE_TABLE(of, atmel_pinctrl_of_match);
+
+static struct pinctrl_desc *atmel_get_pctrl_desc(struct platform_device *pdev)
+{
+ const struct of_device_id *match;
+
+ match = of_match_node(atmel_pinctrl_of_match, pdev->dev.of_node);
+ if (!match)
+ return NULL;
+ return (struct pinctrl_desc *) match->data;
+}
+
+static int atmel_pinctrl_probe(struct platform_device *pdev)
+{
+ int ret;
+ struct atmel_pinctrl *pctrl;
+ struct pinctrl_desc *pctrl_desc;
+ struct device_node *np = pdev->dev.of_node, *regmap_np;
+
+ struct device_node *defs_np, *group_np;
+ int i, j;
+ struct atmel_group *group;
+ unsigned pin_number;
+ const struct pinctrl_pin_desc *pin_desc;
+ u32 pingrp_pin;
+ int ioset;
+
+ if (!np) {
+ dev_err(&pdev->dev, "device tree node not found\n");
+ return -ENODEV;
+ }
+
+ pctrl = devm_kzalloc(&pdev->dev, sizeof(*pctrl), GFP_KERNEL);
+ if (!pctrl)
+ return -ENOMEM;
+
+ /* Get pinctrl descriptor according to the device used. */
+ pctrl_desc = atmel_get_pctrl_desc(pdev);
+ if (!pctrl_desc)
+ return -EINVAL;
+
+ /* Some registers are shared with the gpio controller. */
+ regmap_np = of_parse_phandle(np, "atmel,pio_reg", 0);
+ if (regmap_np) {
+ pctrl->regmap_base = syscon_node_to_regmap(regmap_np);
+ if (IS_ERR(pctrl->regmap_base)) {
+ dev_err(&pdev->dev, "can't get regmap\n");
+ return PTR_ERR(pctrl->regmap_base);
+ }
+ } else {
+ dev_err(&pdev->dev, "atmel,pio_reg property is missing\n");
+ return -EINVAL;
+ }
+
+ pctrl->npins_per_bank = 32;
+
+ /* */
+ defs_np = of_find_node_by_name(np, "group_defs");
+ if (!defs_np) {
+ dev_err(&pdev->dev, "pinctrl_defs not found\n");
+ //TODO
+ }
+ /* Count funcs and groups. */
+ pctrl->ngroups = of_get_child_count(defs_np);
+
+ dev_dbg(&pdev->dev, "%u groups\n", pctrl->ngroups);
+
+ pctrl->groups = devm_kzalloc(&pdev->dev, sizeof(*pctrl->groups) * pctrl->ngroups, GFP_KERNEL);
+ //if (!groups) TODO
+ group = pctrl->groups;
+
+ dev_dbg(&pdev->dev, "parsing groups...\n");
+ i = 0;
+ ioset = -1;
+ for_each_child_of_node(defs_np, group_np) {
+ group->name = group_np->name;
+ group->npins = of_property_count_u32_elems(group_np, "pins");
+ dev_dbg(&pdev->dev, "%s with %u pin(s)\n",
+ group->name, group->npins);
+ group->pins = devm_kzalloc(&pdev->dev, sizeof(*group->pins) * group->npins, GFP_KERNEL);
+ //if (!group->pins) TODO
+ for (i = 0; i < group->npins; i++) {
+ ret = of_property_read_u32_index(group_np, "pins", i, &pingrp_pin);
+ //if (ret) TODO
+ group->pins[i] = pingrp_pin & PINCTRL_PIN_MASK;
+ if (ioset < 0)
+ ioset = pingrp_pin >> 16;
+ if ((pingrp_pin >> 16) != ioset)
+ dev_warn(&pdev->dev,
+ "/!\\ pins from group %s are not using the same ioset /!\\\n",
+ group->name);
+ }
+
+ group++;
+ }
+
+ /* debug */
+ for (i = 0; i < pctrl->ngroups; i++) {
+ group = &pctrl->groups[i];
+ dev_dbg(&pdev->dev, "registring %s, %u pin(s):\n",
+ group->name, group->npins);
+ for (j = 0; j < group->npins; j++) {
+ pin_number = group->pins[j];
+ pin_desc = &pctrl_desc->pins[pin_number];
+ dev_dbg(&pdev->dev, "%s (%u)",
+ pin_desc->name,
+ pin_desc->number);
+ }
+ }
+ /* end of debug */
+
+ pctrl->pctrl = pinctrl_register(pctrl_desc, &pdev->dev, pctrl);
+ if (!pctrl->pctrl) {
+ dev_err(&pdev->dev, "pinctrl registration failed\n");
+ return -ENOMEM;
+ }
+
+ platform_set_drvdata(pdev, pctrl);
+
+ dev_info(&pdev->dev, "atmel pinctrl initialized\n");
+
+ return 0;
+}
+
+int atmel_pinctrl_remove(struct platform_device *pdev)
+{
+ struct atmel_pinctrl *pctrl = platform_get_drvdata(pdev);
+
+ pinctrl_unregister(pctrl->pctrl);
+
+ return 0;
+}
+
+static struct platform_driver atmel_pinctrl_driver = {
+ .driver = {
+ .name = "atmel-pinctrl",
+ .of_match_table = atmel_pinctrl_of_match,
+ },
+ .probe = atmel_pinctrl_probe,
+ .remove = atmel_pinctrl_remove,
+};
+
+module_platform_driver(atmel_pinctrl_driver);
+
+MODULE_AUTHOR(Ludovic Desroches <ludovic.desroches@atmel.com>);
+MODULE_DESCRIPTION("Atmel new pinctrl driver");
+MODULE_LICENSE("GPL");
--
2.2.0
^ permalink raw reply related [flat|nested] 14+ messages in thread
* [RFC PATCH 4/4] ARM: at91/dt: proto dt
2015-04-02 9:38 ` Ludovic Desroches
@ 2015-04-02 9:38 ` Ludovic Desroches
-1 siblings, 0 replies; 14+ messages in thread
From: Ludovic Desroches @ 2015-04-02 9:38 UTC (permalink / raw)
To: linux-arm-kernel, linux-gpio, devicetree
Cc: linus.walleij, laurent.pinchart, swarren, s.hauer, tony,
nicolas.ferre, Ludovic Desroches
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
---
arch/arm/boot/dts/Makefile | 1 +
arch/arm/boot/dts/at91-sama5d4ek_proto.dts | 243 ++++++++++
arch/arm/boot/dts/sama5d4_proto-pinfunc.h | 463 +++++++++++++++++++
arch/arm/boot/dts/sama5d4_proto.dtsi | 716 +++++++++++++++++++++++++++++
4 files changed, 1423 insertions(+)
create mode 100644 arch/arm/boot/dts/at91-sama5d4ek_proto.dts
create mode 100644 arch/arm/boot/dts/sama5d4_proto-pinfunc.h
create mode 100644 arch/arm/boot/dts/sama5d4_proto.dtsi
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index f6d923d..40e1052 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -56,6 +56,7 @@ dtb-$(CONFIG_ARCH_AT91) += sama5d36ek_revc.dtb
# sama5d4
dtb-$(CONFIG_ARCH_AT91) += at91-sama5d4_xplained.dtb
dtb-$(CONFIG_ARCH_AT91) += at91-sama5d4ek.dtb
+dtb-$(CONFIG_ARCH_AT91) += at91-sama5d4ek_proto.dtb
dtb-$(CONFIG_ARCH_ATLAS6) += atlas6-evb.dtb
dtb-$(CONFIG_ARCH_AXXIA) += axm5516-amarillo.dtb
diff --git a/arch/arm/boot/dts/at91-sama5d4ek_proto.dts b/arch/arm/boot/dts/at91-sama5d4ek_proto.dts
new file mode 100644
index 0000000..24d92d3
--- /dev/null
+++ b/arch/arm/boot/dts/at91-sama5d4ek_proto.dts
@@ -0,0 +1,243 @@
+/*
+ * at91-sama5d4ek.dts - Device Tree file for SAMA5D4 Evaluation Kit
+ *
+ * Copyright (C) 2014 Atmel,
+ * 2014 Nicolas Ferre <nicolas.ferre@atmel.com>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+/dts-v1/;
+#include "sama5d4_proto.dtsi"
+
+/ {
+ model = "Atmel SAMA5D4-EK";
+ compatible = "atmel,sama5d4ek", "atmel,sama5d4", "atmel,sama5";
+
+ chosen {
+ bootargs = "console=ttyS0,115200 ignore_loglevel earlyprintk";
+ };
+
+ memory {
+ reg = <0x20000000 0x20000000>;
+ };
+
+ clocks {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ main_clock: clock@0 {
+ compatible = "atmel,osc", "fixed-clock";
+ clock-frequency = <12000000>;
+ };
+
+ slow_xtal {
+ clock-frequency = <32768>;
+ };
+
+ main_xtal {
+ clock-frequency = <12000000>;
+ };
+ };
+
+ ahb {
+ apb {
+ pinctrl@fc06a000 {
+ group_defs {
+ mac0_0_rmii {
+ pins = <PIN_PB0__G0_TXCK>,
+ <PIN_PB2__G0_TXEN>,
+ <PIN_PB6__G0_RXDV>,
+ <PIN_PB7__G0_RXER>,
+ <PIN_PB8__G0_RX0>,
+ <PIN_PB9__G0_RX1>,
+ <PIN_PB12__G0_TX0>,
+ <PIN_PB13__G0_TX1>,
+ <PIN_PB16__G0_MDC>,
+ <PIN_PB17__G0_MDIO>;
+ };
+
+ mci0_0_4bit {
+ pins = <PIN_PC4__MCI0_CK>,
+ <PIN_PC5__MCI0_CDA>,
+ <PIN_PC6__MCI0_DA0>,
+ <PIN_PC7__MCI0_DA1>,
+ <PIN_PC8__MCI0_DA2>,
+ <PIN_PC9__MCI0_DA3>;
+ };
+
+ mci1_0_4bit {
+ pins = <PIN_PE18__MCI1_CK>,
+ <PIN_PE19__MCI1_CDA>,
+ <PIN_PE20__MCI1_DA0>,
+ <PIN_PE21__MCI1_DA1>,
+ <PIN_PE22__MCI1_DA2>,
+ <PIN_PE23__MCI1_DA3>;
+ };
+
+ i2c2_0 {
+ pins = <PIN_PB29__TWD2>,
+ <PIN_PB30__TWCK2>;
+ };
+ };
+
+ pinctrl_mac0_default: mac0_default {
+ mux {
+ function = "A";
+ groups = "mac0_0_rmii";
+ };
+ };
+
+ pinctrl_i2c2_default: i2c2_default {
+ mux {
+ function = "A";
+ groups = "i2c2_0";
+ };
+ };
+
+ pinctrl_mci0_default: mci0_default {
+ mux {
+ function = "B";
+ groups = "mci0_0_4bit";
+ };
+
+ conf-cmd_data {
+ pins = <PIN_PC5__MCI0_CDA>,
+ <PIN_PC6__MCI0_DA0>,
+ <PIN_PC7__MCI0_DA1>,
+ <PIN_PC8__MCI0_DA2>,
+ <PIN_PC9__MCI0_DA3>;
+ bias-pull-up;
+ };
+ };
+
+ pinctrl_mci1_default: mci1_default {
+ mux {
+ function = "C";
+ groups = "mci1_0_4bit";
+ };
+
+ conf-cmd_data {
+ pins = <PIN_PE19__MCI1_CDA>,
+ <PIN_PE20__MCI1_DA0>,
+ <PIN_PE21__MCI1_DA1>,
+ <PIN_PE22__MCI1_DA2>,
+ <PIN_PE23__MCI1_DA3>;
+ bias-pull-up;
+ };
+ };
+
+ };
+
+ mmc0: mmc@f8000000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_mci0_default>;
+ status = "okay";
+ slot@1 {
+ reg = <1>;
+ bus-width = <4>;
+ cd-gpios = <&pioE 5 0>;
+ };
+ };
+
+ macb0: ethernet@f8020000 {
+ phy-mode = "rmii";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_mac0_default>;
+ status = "okay";
+ };
+
+ i2c2: i2c@f8024000 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c2_default>;
+ };
+
+ mmc1: mmc@fc000000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_mci1_default>;
+ status = "okay";
+ slot@0 {
+ reg = <0>;
+ bus-width = <4>;
+ cd-gpios = <&pioE 6 0>;
+ };
+ };
+
+ watchdog@fc068640 {
+ status = "okay";
+ };
+ };
+ };
+
+ gpio_keys {
+ compatible = "gpio-keys";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pb_user1 {
+ label = "pb_user1";
+ gpios = <&pioE 13 GPIO_ACTIVE_HIGH>;
+ linux,code = <0x100>;
+ gpio-key,wakeup;
+ };
+ };
+
+ leds {
+ compatible = "gpio-leds";
+ status = "okay";
+
+ d8 {
+ label = "d8";
+ /* PE28, conflicts with usart4 rts pin */
+ gpios = <&pioE 28 GPIO_ACTIVE_LOW>;
+ };
+
+ d9 {
+ label = "d9";
+ gpios = <&pioE 9 GPIO_ACTIVE_HIGH>;
+ };
+
+ d10 {
+ label = "d10";
+ gpios = <&pioE 8 GPIO_ACTIVE_LOW>;
+ linux,default-trigger = "heartbeat";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/sama5d4_proto-pinfunc.h b/arch/arm/boot/dts/sama5d4_proto-pinfunc.h
new file mode 100644
index 0000000..a960da3
--- /dev/null
+++ b/arch/arm/boot/dts/sama5d4_proto-pinfunc.h
@@ -0,0 +1,463 @@
+#define PINMUX_PIN(no, ioset) \
+( ((no) & 0xffff) | (((ioset) & 0xff) << 16) )
+
+#define PIN_PA0 0
+#define PIN_PA0__LCDDAT0 PINMUX_PIN(PIN_PA0, 0)
+#define PIN_PA0__TMS PINMUX_PIN(PIN_PA0, 0)
+#define PIN_PA1 1
+#define PIN_PA1__LCDDAT1 PINMUX_PIN(PIN_PA1, 0)
+#define PIN_PA2 2
+#define PIN_PA2__LCDDAT2 PINMUX_PIN(PIN_PA2, 0)
+#define PIN_PA2__G1_TXCK PINMUX_PIN(PIN_PA2, 0)
+#define PIN_PA3 3
+#define PIN_PA3__LCDDAT3 PINMUX_PIN(PIN_PA3, 0)
+#define PIN_PA3__G1_RXCK PINMUX_PIN(PIN_PA3, 0)
+#define PIN_PA4 4
+#define PIN_PA4__LCDDAT4 PINMUX_PIN(PIN_PA4, 0)
+#define PIN_PA4__G1_TXEN PINMUX_PIN(PIN_PA4, 0)
+#define PIN_PA5 5
+#define PIN_PA5__LCDDAT5 PINMUX_PIN(PIN_PA5, 0)
+#define PIN_PA5__G1_TXER PINMUX_PIN(PIN_PA5, 0)
+#define PIN_PA6 6
+#define PIN_PA6__LCDDAT6 PINMUX_PIN(PIN_PA6, 0)
+#define PIN_PA6__G1_CRS PINMUX_PIN(PIN_PA6, 0)
+#define PIN_PA7 7
+#define PIN_PA7__LCDDAT7 PINMUX_PIN(PIN_PA7, 0)
+#define PIN_PA8 8
+#define PIN_PA8__LCDDAT8 PINMUX_PIN(PIN_PA8, 0)
+#define PIN_PA8__TCK PINMUX_PIN(PIN_PA8, 0)
+#define PIN_PA9 9
+#define PIN_PA9__LCDDAT9 PINMUX_PIN(PIN_PA9, 0)
+#define PIN_PA9__G1_COL PINMUX_PIN(PIN_PA9, 0)
+#define PIN_PA10 10
+#define PIN_PA10__LCDDAT10 PINMUX_PIN(PIN_PA10, 0)
+#define PIN_PA10__G1_RXDV PINMUX_PIN(PIN_PA10, 0)
+#define PIN_PA11 11
+#define PIN_PA11__LCDDAT11 PINMUX_PIN(PIN_PA11, 0)
+#define PIN_PA11__G1_RXER PINMUX_PIN(PIN_PA11, 0)
+#define PIN_PA12 12
+#define PIN_PA12__LCDDAT12 PINMUX_PIN(PIN_PA12, 0)
+#define PIN_PA12__G1_RX0 PINMUX_PIN(PIN_PA12, 0)
+#define PIN_PA13 13
+#define PIN_PA13__LCDDAT13 PINMUX_PIN(PIN_PA13, 0)
+#define PIN_PA13__G1_RX1 PINMUX_PIN(PIN_PA13, 0)
+#define PIN_PA14 14
+#define PIN_PA14__LCDDAT14 PINMUX_PIN(PIN_PA14, 0)
+#define PIN_PA14__G1_TX0 PINMUX_PIN(PIN_PA14, 0)
+#define PIN_PA15 15
+#define PIN_PA15__LCDDAT15 PINMUX_PIN(PIN_PA15, 0)
+#define PIN_PA15__G1_TX1 PINMUX_PIN(PIN_PA15, 0)
+#define PIN_PA16 16
+#define PIN_PA16__LCDDAT16 PINMUX_PIN(PIN_PA16, 0)
+#define PIN_PA16__NTRST PINMUX_PIN(PIN_PA16, 0)
+#define PIN_PA17 17
+#define PIN_PA17__LCDDAT17 PINMUX_PIN(PIN_PA17, 0)
+#define PIN_PA18 18
+#define PIN_PA18__LCDDAT18 PINMUX_PIN(PIN_PA18, 0)
+#define PIN_PA18__G1_RX2 PINMUX_PIN(PIN_PA18, 0)
+#define PIN_PA19 19
+#define PIN_PA19__LCDDAT19 PINMUX_PIN(PIN_PA19, 0)
+#define PIN_PA19__G1_RX3 PINMUX_PIN(PIN_PA19, 0)
+#define PIN_PA20 20
+#define PIN_PA20__LCDDAT20 PINMUX_PIN(PIN_PA20, 0)
+#define PIN_PA20__G1_TX2 PINMUX_PIN(PIN_PA20, 0)
+#define PIN_PA21 21
+#define PIN_PA21__LCDDAT21 PINMUX_PIN(PIN_PA21, 0)
+#define PIN_PA21__G1_TX3 PINMUX_PIN(PIN_PA21, 0)
+#define PIN_PA22 22
+#define PIN_PA22__LCDDAT22 PINMUX_PIN(PIN_PA22, 0)
+#define PIN_PA22__G1_MDC PINMUX_PIN(PIN_PA22, 0)
+#define PIN_PA23 23
+#define PIN_PA23__LCDDAT23 PINMUX_PIN(PIN_PA23, 0)
+#define PIN_PA23__G1_MDIO PINMUX_PIN(PIN_PA23, 0)
+#define PIN_PA24 24
+#define PIN_PA24__LCDPWM PINMUX_PIN(PIN_PA24, 0)
+#define PIN_PA24__PCK0 PINMUX_PIN(PIN_PA24, 0)
+#define PIN_PA25 25
+#define PIN_PA25__LCDDISP PINMUX_PIN(PIN_PA25, 0)
+#define PIN_PA25__TD0 PINMUX_PIN(PIN_PA25, 0)
+#define PIN_PA26 26
+#define PIN_PA26__LCDVSYNC PINMUX_PIN(PIN_PA26, 0)
+#define PIN_PA26__PWMH0 PINMUX_PIN(PIN_PA26, 0)
+#define PIN_PA26__SPI1_NPCS1 PINMUX_PIN(PIN_PA26, 0)
+#define PIN_PA27 27
+#define PIN_PA27__LCDHSYNC PINMUX_PIN(PIN_PA27, 0)
+#define PIN_PA27__PWML0 PINMUX_PIN(PIN_PA27, 0)
+#define PIN_PA27__SPI1_NPCS2 PINMUX_PIN(PIN_PA27, 0)
+#define PIN_PA28 28
+#define PIN_PA28__LCDPCK PINMUX_PIN(PIN_PA28, 0)
+#define PIN_PA28__PWMH1 PINMUX_PIN(PIN_PA28, 0)
+#define PIN_PA28__SPI1_NPCS3 PINMUX_PIN(PIN_PA28, 0)
+#define PIN_PA29 29
+#define PIN_PA29__LCDDEN PINMUX_PIN(PIN_PA29, 0)
+#define PIN_PA29__PWML1 PINMUX_PIN(PIN_PA29, 0)
+#define PIN_PA30 30
+#define PIN_PA30__TWD0 PINMUX_PIN(PIN_PA30, 0)
+#define PIN_PA31 31
+#define PIN_PA31__TWCK0 PINMUX_PIN(PIN_PA31, 0)
+#define PIN_PB0 32
+#define PIN_PB0__G0_TXCK PINMUX_PIN(PIN_PB0, 0)
+#define PIN_PB1 33
+#define PIN_PB1__G0_RXCK PINMUX_PIN(PIN_PB1, 0)
+#define PIN_PB1__SCK2 PINMUX_PIN(PIN_PB1, 0)
+#define PIN_PB1__ISI_PCK PINMUX_PIN(PIN_PB1, 0)
+#define PIN_PB2 34
+#define PIN_PB2__G0_TXEN PINMUX_PIN(PIN_PB2, 0)
+#define PIN_PB3 35
+#define PIN_PB3__G0_TXER PINMUX_PIN(PIN_PB3, 0)
+#define PIN_PB3__CTS2 PINMUX_PIN(PIN_PB3, 0)
+#define PIN_PB3__ISI_VSYNC PINMUX_PIN(PIN_PB3, 0)
+#define PIN_PB4 36
+#define PIN_PB4__G0_CRS PINMUX_PIN(PIN_PB4, 1)
+#define PIN_PB4__RXD2 PINMUX_PIN(PIN_PB4, 1)
+#define PIN_PB4__ISI_HSYNC PINMUX_PIN(PIN_PB4, 1)
+#define PIN_PB5 37
+#define PIN_PB5__G0_COL PINMUX_PIN(PIN_PB5, 0)
+#define PIN_PB5__TXD2 PINMUX_PIN(PIN_PB5, 0)
+#define PIN_PB5__PCK2 PINMUX_PIN(PIN_PB5, 0)
+#define PIN_PB6 38
+#define PIN_PB6__G0_RXDV PINMUX_PIN(PIN_PB6, 0)
+#define PIN_PB7 39
+#define PIN_PB7__G0_RXER PINMUX_PIN(PIN_PB7, 0)
+#define PIN_PB8 40
+#define PIN_PB8__G0_RX0 PINMUX_PIN(PIN_PB8, 0)
+#define PIN_PB9 41
+#define PIN_PB9__G0_RX1 PINMUX_PIN(PIN_PB9, 0)
+#define PIN_PB10 42
+#define PIN_PB10__G0_RX2 PINMUX_PIN(PIN_PB10, 0)
+#define PIN_PB10__PCK2 PINMUX_PIN(PIN_PB10, 0)
+#define PIN_PB10__PWML1 PINMUX_PIN(PIN_PB10, 0)
+#define PIN_PB11 43
+#define PIN_PB11__G0_RX3 PINMUX_PIN(PIN_PB11, 0)
+#define PIN_PB11__RTS2 PINMUX_PIN(PIN_PB11, 0)
+#define PIN_PB11__PWMH1 PINMUX_PIN(PIN_PB11, 0)
+#define PIN_PB12 44
+#define PIN_PB12__G0_TX0 PINMUX_PIN(PIN_PB12, 0)
+#define PIN_PB13 45
+#define PIN_PB13__G0_TX1 PINMUX_PIN(PIN_PB13, 0)
+#define PIN_PB14 46
+#define PIN_PB14__G0_TX2 PINMUX_PIN(PIN_PB14, 0)
+#define PIN_PB14__SPI2_NPCS1 PINMUX_PIN(PIN_PB14, 0)
+#define PIN_PB14__PWMH0 PINMUX_PIN(PIN_PB14, 0)
+#define PIN_PB15 47
+#define PIN_PB15__G0_TX3 PINMUX_PIN(PIN_PB15, 0)
+#define PIN_PB15__SPI2_NPCS2 PINMUX_PIN(PIN_PB15, 0)
+#define PIN_PB15__PWML0 PINMUX_PIN(PIN_PB15, 0)
+#define PIN_PB16 48
+#define PIN_PB16__G0_MDC PINMUX_PIN(PIN_PB16, 0)
+#define PIN_PB17 49
+#define PIN_PB17__G0_MDIO PINMUX_PIN(PIN_PB17, 0)
+#define PIN_PB18 50
+#define PIN_PB18__SPI1_MISO PINMUX_PIN(PIN_PB18, 0)
+#define PIN_PB18__D8 PINMUX_PIN(PIN_PB18, 0)
+#define PIN_PB19 51
+#define PIN_PB19__SPI1_MISO PINMUX_PIN(PIN_PB19, 0)
+#define PIN_PB19__D9 PINMUX_PIN(PIN_PB19, 0)
+#define PIN_PB20 52
+#define PIN_PB20__SPI1_SPCK PINMUX_PIN(PIN_PB20, 0)
+#define PIN_PB20__D10 PINMUX_PIN(PIN_PB20, 0)
+#define PIN_PB21 53
+#define PIN_PB21__SPI1_NPCS0 PINMUX_PIN(PIN_PB21, 0)
+#define PIN_PB21__D11 PINMUX_PIN(PIN_PB21, 0)
+#define PIN_PB22 54
+#define PIN_PB22__SPI1_NPCS1 PINMUX_PIN(PIN_PB22, 0)
+#define PIN_PB22__D12 PINMUX_PIN(PIN_PB22, 0)
+#define PIN_PB23 55
+#define PIN_PB23__SPI1_NPCS2 PINMUX_PIN(PIN_PB23, 0)
+#define PIN_PB23__D13 PINMUX_PIN(PIN_PB23, 0)
+#define PIN_PB24 56
+#define PIN_PB24__DRXD PINMUX_PIN(PIN_PB24, 0)
+#define PIN_PB24__D14 PINMUX_PIN(PIN_PB24, 0)
+#define PIN_PB24__TDI PINMUX_PIN(PIN_PB24, 0)
+#define PIN_PB25 57
+#define PIN_PB25__DTXD PINMUX_PIN(PIN_PB25, 0)
+#define PIN_PB25__D15 PINMUX_PIN(PIN_PB25, 0)
+#define PIN_PB25__TD0 PINMUX_PIN(PIN_PB25, 0)
+#define PIN_PB26 58
+#define PIN_PB26__PCK0 PINMUX_PIN(PIN_PB26, 0)
+#define PIN_PB26__RK0 PINMUX_PIN(PIN_PB26, 0)
+#define PIN_PB26__PWMH0 PINMUX_PIN(PIN_PB26, 0)
+#define PIN_PB27 59
+#define PIN_PB27__SPI1_NPCS3 PINMUX_PIN(PIN_PB27, 0)
+#define PIN_PB27__TK0 PINMUX_PIN(PIN_PB27, 0)
+#define PIN_PB27__PWML0 PINMUX_PIN(PIN_PB27, 0)
+#define PIN_PB28 60
+#define PIN_PB28__SPI2_NPCS3 PINMUX_PIN(PIN_PB28, 0)
+#define PIN_PB28__TD0 PINMUX_PIN(PIN_PB28, 0)
+#define PIN_PB28__PWMH1 PINMUX_PIN(PIN_PB28, 0)
+#define PIN_PB29 61
+#define PIN_PB29__TWD2 PINMUX_PIN(PIN_PB29, 0)
+#define PIN_PB29__RD0 PINMUX_PIN(PIN_PB29, 0)
+#define PIN_PB29__PWML1 PINMUX_PIN(PIN_PB29, 0)
+#define PIN_PB30 62
+#define PIN_PB30__TWCK2 PINMUX_PIN(PIN_PB30, 0)
+#define PIN_PB30__RF0 PINMUX_PIN(PIN_PB30, 0)
+#define PIN_PB31 63
+#define PIN_PB31__TF0 PINMUX_PIN(PIN_PB31, 0)
+#define PIN_PC0 64
+#define PIN_PC0__SPI0_MISO PINMUX_PIN(PIN_PC0, 0)
+#define PIN_PC0__PWMH2 PINMUX_PIN(PIN_PC0, 0)
+#define PIN_PC0__ISI_D8 PINMUX_PIN(PIN_PC0, 0)
+#define PIN_PC1 65
+#define PIN_PC1__SPI0_MOSI PINMUX_PIN(PIN_PC1, 0)
+#define PIN_PC1__PWML2 PINMUX_PIN(PIN_PC1, 0)
+#define PIN_PC1__ISI_D9 PINMUX_PIN(PIN_PC1, 0)
+#define PIN_PC2 66
+#define PIN_PC2__SPI0_SPCK PINMUX_PIN(PIN_PC2, 0)
+#define PIN_PC2__PWMH3 PINMUX_PIN(PIN_PC2, 0)
+#define PIN_PC2__ISI_D10 PINMUX_PIN(PIN_PC2, 0)
+#define PIN_PC3 67
+#define PIN_PC3__SPI0_NPCS0 PINMUX_PIN(PIN_PC3, 0)
+#define PIN_PC3__PWML3 PINMUX_PIN(PIN_PC3, 0)
+#define PIN_PC3__ISI_D11 PINMUX_PIN(PIN_PC3, 0)
+#define PIN_PC4 68
+#define PIN_PC4__SPI0_NPCS1 PINMUX_PIN(PIN_PC4, 0)
+#define PIN_PC4__MCI0_CK PINMUX_PIN(PIN_PC4, 0)
+#define PIN_PC4__PCK1 PINMUX_PIN(PIN_PC4, 0)
+#define PIN_PC5 69
+#define PIN_PC5__D0 PINMUX_PIN(PIN_PC5, 0)
+#define PIN_PC5__MCI0_CDA PINMUX_PIN(PIN_PC5, 0)
+#define PIN_PC6 70
+#define PIN_PC6__D1 PINMUX_PIN(PIN_PC6, 0)
+#define PIN_PC6__MCI0_DA0 PINMUX_PIN(PIN_PC6, 0)
+#define PIN_PC7 71
+#define PIN_PC7__D2 PINMUX_PIN(PIN_PC7, 0)
+#define PIN_PC7__MCI0_DA1 PINMUX_PIN(PIN_PC7, 0)
+#define PIN_PC8 72
+#define PIN_PC8__D3 PINMUX_PIN(PIN_PC8, 0)
+#define PIN_PC8__MCI0_DA2 PINMUX_PIN(PIN_PC8, 0)
+#define PIN_PC9 73
+#define PIN_PC9__D4 PINMUX_PIN(PIN_PC9, 0)
+#define PIN_PC9__MCI0_DA3 PINMUX_PIN(PIN_PC9, 0)
+#define PIN_PC10 74
+#define PIN_PC10__D5 PINMUX_PIN(PIN_PC10, 0)
+#define PIN_PC10__MCI0_DA4 PINMUX_PIN(PIN_PC10, 0)
+#define PIN_PC11 75
+#define PIN_PC11__D6 PINMUX_PIN(PIN_PC11, 0)
+#define PIN_PC11__MCI0_DA5 PINMUX_PIN(PIN_PC11, 0)
+#define PIN_PC12 76
+#define PIN_PC12__D7 PINMUX_PIN(PIN_PC12, 0)
+#define PIN_PC12__MCI0_DA6 PINMUX_PIN(PIN_PC12, 0)
+#define PIN_PC13 77
+#define PIN_PC13__NRD_NANDOE PINMUX_PIN(PIN_PC13, 0)
+#define PIN_PC13__MCI0_DA7 PINMUX_PIN(PIN_PC13, 0)
+#define PIN_PC14 78
+#define PIN_PC14__NWE_NANDWE PINMUX_PIN(PIN_PC14, 0)
+#define PIN_PC15 79
+#define PIN_PC15__NCS3 PINMUX_PIN(PIN_PC15, 0)
+#define PIN_PC16 80
+#define PIN_PC16__NANDRDY PINMUX_PIN(PIN_PC16, 0)
+#define PIN_PC17 81
+#define PIN_PC17__A21_NANDALE PINMUX_PIN(PIN_PC17, 0)
+#define PIN_PC18 82
+#define PIN_PC18__A22_NANDCLE PINMUX_PIN(PIN_PC18, 0)
+#define PIN_PC19 83
+#define PIN_PC19__ISI_D0 PINMUX_PIN(PIN_PC19, 0)
+#define PIN_PC19__TK1 PINMUX_PIN(PIN_PC19, 0)
+#define PIN_PC20 84
+#define PIN_PC20__ISI_D1 PINMUX_PIN(PIN_PC20, 0)
+#define PIN_PC20__TF1 PINMUX_PIN(PIN_PC20, 0)
+#define PIN_PC21 85
+#define PIN_PC21__ISI_D2 PINMUX_PIN(PIN_PC21, 0)
+#define PIN_PC21__TD1 PINMUX_PIN(PIN_PC21, 0)
+#define PIN_PC22 86
+#define PIN_PC22__ISI_D3 PINMUX_PIN(PIN_PC22, 0)
+#define PIN_PC22__RF1 PINMUX_PIN(PIN_PC22, 0)
+#define PIN_PC23 87
+#define PIN_PC23__ISI_D4 PINMUX_PIN(PIN_PC23, 0)
+#define PIN_PC23__RD1 PINMUX_PIN(PIN_PC23, 0)
+#define PIN_PC24 88
+#define PIN_PC24__ISI_D5 PINMUX_PIN(PIN_PC24, 0)
+#define PIN_PC24__RK1 PINMUX_PIN(PIN_PC24, 0)
+#define PIN_PC24__PCK1 PINMUX_PIN(PIN_PC24, 0)
+#define PIN_PC25 89
+#define PIN_PC25__ISI_D6 PINMUX_PIN(PIN_PC25, 0)
+#define PIN_PC25__TWD3 PINMUX_PIN(PIN_PC25, 0)
+#define PIN_PC25__URXD1 PINMUX_PIN(PIN_PC25, 0)
+#define PIN_PC26 90
+#define PIN_PC26__ISI_D7 PINMUX_PIN(PIN_PC26, 0)
+#define PIN_PC26__TWCK3 PINMUX_PIN(PIN_PC26, 0)
+#define PIN_PC26__UTXD1 PINMUX_PIN(PIN_PC26, 0)
+#define PIN_PC27 91
+#define PIN_PC27__AD0 PINMUX_PIN(PIN_PC27, 0)
+#define PIN_PC27__SPI0_NPCS1 PINMUX_PIN(PIN_PC27, 0)
+#define PIN_PC27__PWML0 PINMUX_PIN(PIN_PC27, 0)
+#define PIN_PC28 92
+#define PIN_PC28__AD1 PINMUX_PIN(PIN_PC28, 0)
+#define PIN_PC28__SPI0_NPCS2 PINMUX_PIN(PIN_PC28, 0)
+#define PIN_PC28__PWML1 PINMUX_PIN(PIN_PC28, 0)
+#define PIN_PC29 93
+#define PIN_PC29__AD2 PINMUX_PIN(PIN_PC29, 0)
+#define PIN_PC29__SPI0_NPCS3 PINMUX_PIN(PIN_PC29, 0)
+#define PIN_PC29__PWMFI0 PINMUX_PIN(PIN_PC29, 0)
+#define PIN_PC30 94
+#define PIN_PC30__AD3 PINMUX_PIN(PIN_PC30, 0)
+#define PIN_PC30__PWMH0 PINMUX_PIN(PIN_PC30, 0)
+#define PIN_PC31 95
+#define PIN_PC31__AD4 PINMUX_PIN(PIN_PC31, 0)
+#define PIN_PC31__PWMH1 PINMUX_PIN(PIN_PC31, 0)
+#define PIN_PD0 96
+#define PIN_PD1 97
+#define PIN_PD2 98
+#define PIN_PD3 99
+#define PIN_PD4 100
+#define PIN_PD5 101
+#define PIN_PD6 102
+#define PIN_PD7 103
+#define PIN_PD8 104
+#define PIN_PD8__PCK0 PINMUX_PIN(PIN_PD8, 0)
+#define PIN_PD9 105
+#define PIN_PD9__FIQ PINMUX_PIN(PIN_PD9, 0)
+#define PIN_PD10 106
+#define PIN_PD10__CTS0 PINMUX_PIN(PIN_PD10, 0)
+#define PIN_PD11 107
+#define PIN_PD11__RTS0 PINMUX_PIN(PIN_PD11, 0)
+#define PIN_PD11__SPI2_MISO PINMUX_PIN(PIN_PD11, 0)
+#define PIN_PD12 108
+#define PIN_PD12__RXD0 PINMUX_PIN(PIN_PD12, 0)
+#define PIN_PD13 109
+#define PIN_PD13__TXD0 PINMUX_PIN(PIN_PD13, 0)
+#define PIN_PD13__SPI2_MOSI PINMUX_PIN(PIN_PD13, 0)
+#define PIN_PD14 110
+#define PIN_PD14__CTS1 PINMUX_PIN(PIN_PD14, 0)
+#define PIN_PD15 111
+#define PIN_PD15__RTS1 PINMUX_PIN(PIN_PD15, 0)
+#define PIN_PD15__SPI2_SPCK PINMUX_PIN(PIN_PD15, 0)
+#define PIN_PD16 112
+#define PIN_PD16__RXD1 PINMUX_PIN(PIN_PD16, 0)
+#define PIN_PD17 113
+#define PIN_PD17__TXD1 PINMUX_PIN(PIN_PD17, 0)
+#define PIN_PD17__SPI2_NPCS0 PINMUX_PIN(PIN_PD17, 0)
+#define PIN_PD18 114
+#define PIN_PD19 115
+#define PIN_PD20 116
+#define PIN_PD21 117
+#define PIN_PD22 118
+#define PIN_PD23 119
+#define PIN_PD24 120
+#define PIN_PD25 121
+#define PIN_PD26 122
+#define PIN_PD27 123
+#define PIN_PD28 124
+#define PIN_PD28__SCK0 PINMUX_PIN(PIN_PD28, 0)
+#define PIN_PD29 125
+#define PIN_PD29__SCK1 PINMUX_PIN(PIN_PD29, 0)
+#define PIN_PD30 126
+#define PIN_PD31 127
+#define PIN_PD31__SPI0_NPCS2 PINMUX_PIN(PIN_PD31, 0)
+#define PIN_PD31__PCK1 PINMUX_PIN(PIN_PD31, 0)
+#define PIN_PE0 128
+#define PIN_PE0__A0_NBS0 PINMUX_PIN(PIN_PE0, 0)
+#define PIN_PE0__MCI0_CDB PINMUX_PIN(PIN_PE0, 0)
+#define PIN_PE0__CTS4 PINMUX_PIN(PIN_PE0, 0)
+#define PIN_PE1 129
+#define PIN_PE1__A1 PINMUX_PIN(PIN_PE1, 0)
+#define PIN_PE1__MCI0_DB0 PINMUX_PIN(PIN_PE1, 0)
+#define PIN_PE2 130
+#define PIN_PE2__A2 PINMUX_PIN(PIN_PE2, 0)
+#define PIN_PE2__MCI0_DB1 PINMUX_PIN(PIN_PE2, 0)
+#define PIN_PE3 131
+#define PIN_PE3__A3 PINMUX_PIN(PIN_PE3, 0)
+#define PIN_PE3__MCI0_DB2 PINMUX_PIN(PIN_PE3, 0)
+#define PIN_PE4 132
+#define PIN_PE4__A4 PINMUX_PIN(PIN_PE4, 0)
+#define PIN_PE4__MCI0_DB3 PINMUX_PIN(PIN_PE4, 0)
+#define PIN_PE5 133
+#define PIN_PE5__A5 PINMUX_PIN(PIN_PE5, 0)
+#define PIN_PE5__CTS3 PINMUX_PIN(PIN_PE5, 0)
+#define PIN_PE6 134
+#define PIN_PE6__A6 PINMUX_PIN(PIN_PE6, 0)
+#define PIN_PE6__TIOA3 PINMUX_PIN(PIN_PE6, 0)
+#define PIN_PE7 135
+#define PIN_PE7__A7 PINMUX_PIN(PIN_PE7, 0)
+#define PIN_PE7__TIOB3 PINMUX_PIN(PIN_PE7, 0)
+#define PIN_PE7__PWMFI1 PINMUX_PIN(PIN_PE7, 0)
+#define PIN_PE8 136
+#define PIN_PE8__A8 PINMUX_PIN(PIN_PE8, 0)
+#define PIN_PE8__TCLK3 PINMUX_PIN(PIN_PE8, 0)
+#define PIN_PE8__PWML3 PINMUX_PIN(PIN_PE8, 0)
+#define PIN_PE9 137
+#define PIN_PE9__A9 PINMUX_PIN(PIN_PE9, 0)
+#define PIN_PE9__TIOA2 PINMUX_PIN(PIN_PE9, 0)
+#define PIN_PE10 138
+#define PIN_PE10__A10 PINMUX_PIN(PIN_PE10, 0)
+#define PIN_PE10__TIOB2 PINMUX_PIN(PIN_PE10, 0)
+#define PIN_PE11 139
+#define PIN_PE11__A11 PINMUX_PIN(PIN_PE11, 0)
+#define PIN_PE11__TCLK2 PINMUX_PIN(PIN_PE11, 0)
+#define PIN_PE12 140
+#define PIN_PE12__A12 PINMUX_PIN(PIN_PE12, 0)
+#define PIN_PE12__TIOA1 PINMUX_PIN(PIN_PE12, 0)
+#define PIN_PE12__PWMH2 PINMUX_PIN(PIN_PE12, 0)
+#define PIN_PE13 141
+#define PIN_PE13__A13 PINMUX_PIN(PIN_PE13, 0)
+#define PIN_PE13__TIOB1 PINMUX_PIN(PIN_PE13, 0)
+#define PIN_PE13__PWML2 PINMUX_PIN(PIN_PE13, 0)
+#define PIN_PE14 142
+#define PIN_PE14__A14 PINMUX_PIN(PIN_PE14, 0)
+#define PIN_PE14__TCLK1 PINMUX_PIN(PIN_PE14, 0)
+#define PIN_PE14__PWMH3 PINMUX_PIN(PIN_PE14, 0)
+#define PIN_PE15 143
+#define PIN_PE15__A15 PINMUX_PIN(PIN_PE15, 0)
+#define PIN_PE15__SCK3 PINMUX_PIN(PIN_PE15, 0)
+#define PIN_PE15__TIOA0 PINMUX_PIN(PIN_PE15, 0)
+#define PIN_PE16 144
+#define PIN_PE16__A16 PINMUX_PIN(PIN_PE16, 0)
+#define PIN_PE16__RXD3 PINMUX_PIN(PIN_PE16, 0)
+#define PIN_PE16__TIOB0 PINMUX_PIN(PIN_PE16, 0)
+#define PIN_PE17 145
+#define PIN_PE17__A17 PINMUX_PIN(PIN_PE17, 0)
+#define PIN_PE17__TXD3 PINMUX_PIN(PIN_PE17, 0)
+#define PIN_PE17__TCLK0 PINMUX_PIN(PIN_PE17, 0)
+#define PIN_PE18 146
+#define PIN_PE18__A18 PINMUX_PIN(PIN_PE18, 0)
+#define PIN_PE18__TIOA5 PINMUX_PIN(PIN_PE18, 0)
+#define PIN_PE18__MCI1_CK PINMUX_PIN(PIN_PE18, 0)
+#define PIN_PE19 147
+#define PIN_PE19__A19 PINMUX_PIN(PIN_PE19, 0)
+#define PIN_PE19__TIOB5 PINMUX_PIN(PIN_PE19, 0)
+#define PIN_PE19__MCI1_CDA PINMUX_PIN(PIN_PE19, 0)
+#define PIN_PE20 148
+#define PIN_PE20__A20 PINMUX_PIN(PIN_PE20, 0)
+#define PIN_PE20__TCLK5 PINMUX_PIN(PIN_PE20, 0)
+#define PIN_PE20__MCI1_DA0 PINMUX_PIN(PIN_PE20, 0)
+#define PIN_PE21 149
+#define PIN_PE21__A23 PINMUX_PIN(PIN_PE21, 0)
+#define PIN_PE21__TIOA4 PINMUX_PIN(PIN_PE21, 0)
+#define PIN_PE21__MCI1_DA1 PINMUX_PIN(PIN_PE21, 0)
+#define PIN_PE22 150
+#define PIN_PE22__A24 PINMUX_PIN(PIN_PE22, 0)
+#define PIN_PE22__TIOB4 PINMUX_PIN(PIN_PE22, 0)
+#define PIN_PE22__MCI1_DA2 PINMUX_PIN(PIN_PE22, 0)
+#define PIN_PE23 151
+#define PIN_PE23__A25 PINMUX_PIN(PIN_PE23, 0)
+#define PIN_PE23__TCLK4 PINMUX_PIN(PIN_PE23, 0)
+#define PIN_PE23__MCI1_DA3 PINMUX_PIN(PIN_PE23, 0)
+#define PIN_PE24 152
+#define PIN_PE24__NCS0 PINMUX_PIN(PIN_PE24, 0)
+#define PIN_PE24__RTS3 PINMUX_PIN(PIN_PE24, 0)
+#define PIN_PE25 153
+#define PIN_PE25__NCS1 PINMUX_PIN(PIN_PE25, 0)
+#define PIN_PE25__SCK4 PINMUX_PIN(PIN_PE25, 0)
+#define PIN_PE25__IRQ PINMUX_PIN(PIN_PE25, 0)
+#define PIN_PE26 154
+#define PIN_PE26__NCS2 PINMUX_PIN(PIN_PE26, 0)
+#define PIN_PE26__RXD4 PINMUX_PIN(PIN_PE26, 0)
+#define PIN_PE26__A18 PINMUX_PIN(PIN_PE26, 0)
+#define PIN_PE27 155
+#define PIN_PE27__NWR1_NBS1 PINMUX_PIN(PIN_PE27, 0)
+#define PIN_PE27__TXD4 PINMUX_PIN(PIN_PE27, 0)
+#define PIN_PE28 156
+#define PIN_PE28__NWAIT PINMUX_PIN(PIN_PE28, 0)
+#define PIN_PE28__RTS4 PINMUX_PIN(PIN_PE28, 0)
+#define PIN_PE28__A19 PINMUX_PIN(PIN_PE28, 0)
+#define PIN_PE29 157
+#define PIN_PE29__DIBP PINMUX_PIN(PIN_PE29, 0)
+#define PIN_PE29__URXD0 PINMUX_PIN(PIN_PE29, 0)
+#define PIN_PE29__TWD1 PINMUX_PIN(PIN_PE29, 0)
+#define PIN_PE30 158
+#define PIN_PE30__DIBN PINMUX_PIN(PIN_PE30, 0)
+#define PIN_PE30__UTXD0 PINMUX_PIN(PIN_PE30, 0)
+#define PIN_PE30__TWCK1 PINMUX_PIN(PIN_PE30, 0)
+#define PIN_PE31 159
+#define PIN_PE31__ADTRG PINMUX_PIN(PIN_PE31, 0)
diff --git a/arch/arm/boot/dts/sama5d4_proto.dtsi b/arch/arm/boot/dts/sama5d4_proto.dtsi
new file mode 100644
index 0000000..dd66bf6
--- /dev/null
+++ b/arch/arm/boot/dts/sama5d4_proto.dtsi
@@ -0,0 +1,716 @@
+/*
+ * sama5d4.dtsi - Device Tree Include file for SAMA5D4 family SoC
+ *
+ * Copyright (C) 2014 Atmel,
+ * 2014 Nicolas Ferre <nicolas.ferre@atmel.com>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "skeleton.dtsi"
+#include <dt-bindings/clock/at91.h>
+#include <dt-bindings/dma/at91.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/gpio/gpio.h>
+#include "sama5d4_proto-pinfunc.h"
+
+/ {
+ model = "Atmel SAMA5D4 family SoC";
+ compatible = "atmel,sama5d4";
+ interrupt-parent = <&aic>;
+
+ aliases {
+ serial0 = &usart3;
+ gpio0 = &pioA;
+ gpio1 = &pioB;
+ gpio2 = &pioC;
+ gpio3 = &pioD;
+ gpio4 = &pioE;
+ tcb0 = &tcb0;
+ tcb1 = &tcb1;
+ i2c2 = &i2c2;
+ };
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a5";
+ reg = <0>;
+ next-level-cache = <&L2>;
+ };
+ };
+
+ memory {
+ reg = <0x20000000 0x20000000>;
+ };
+
+ clocks {
+ slow_xtal: slow_xtal {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <0>;
+ };
+
+ main_xtal: main_xtal {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <0>;
+ };
+
+ adc_op_clk: adc_op_clk{
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <1000000>;
+ };
+ };
+
+ ahb {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ L2: cache-controller@00a00000 {
+ compatible = "arm,pl310-cache";
+ reg = <0x00a00000 0x1000>;
+ interrupts = <67 IRQ_TYPE_LEVEL_HIGH 4>;
+ cache-unified;
+ cache-level = <2>;
+ };
+
+ apb {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ dma1: dma-controller@f0004000 {
+ compatible = "atmel,sama5d4-dma";
+ reg = <0xf0004000 0x200>;
+ interrupts = <50 IRQ_TYPE_LEVEL_HIGH 0>;
+ #dma-cells = <1>;
+ clocks = <&dma1_clk>;
+ clock-names = "dma_clk";
+ };
+
+ ramc0: ramc@f0010000 {
+ compatible = "atmel,sama5d3-ddramc";
+ reg = <0xf0010000 0x200>;
+ clocks = <&ddrck>, <&mpddr_clk>;
+ clock-names = "ddrck", "mpddr";
+ };
+
+ dma0: dma-controller@f0014000 {
+ compatible = "atmel,sama5d4-dma";
+ reg = <0xf0014000 0x200>;
+ interrupts = <8 IRQ_TYPE_LEVEL_HIGH 0>;
+ #dma-cells = <1>;
+ clocks = <&dma0_clk>;
+ clock-names = "dma_clk";
+ };
+
+ pmc: pmc@f0018000 {
+ compatible = "atmel,sama5d3-pmc";
+ reg = <0xf0018000 0x120>;
+ interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
+ interrupt-controller;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+
+ main_rc_osc: main_rc_osc {
+ compatible = "atmel,at91sam9x5-clk-main-rc-osc";
+ #clock-cells = <0>;
+ interrupt-parent = <&pmc>;
+ interrupts = <AT91_PMC_MOSCRCS>;
+ clock-frequency = <12000000>;
+ clock-accuracy = <100000000>;
+ };
+
+ main_osc: main_osc {
+ compatible = "atmel,at91rm9200-clk-main-osc";
+ #clock-cells = <0>;
+ interrupt-parent = <&pmc>;
+ interrupts = <AT91_PMC_MOSCS>;
+ clocks = <&main_xtal>;
+ };
+
+ main: mainck {
+ compatible = "atmel,at91sam9x5-clk-main";
+ #clock-cells = <0>;
+ interrupt-parent = <&pmc>;
+ interrupts = <AT91_PMC_MOSCSELS>;
+ clocks = <&main_rc_osc &main_osc>;
+ };
+
+ plla: pllack {
+ compatible = "atmel,sama5d3-clk-pll";
+ #clock-cells = <0>;
+ interrupt-parent = <&pmc>;
+ interrupts = <AT91_PMC_LOCKA>;
+ clocks = <&main>;
+ reg = <0>;
+ atmel,clk-input-range = <12000000 12000000>;
+ #atmel,pll-clk-output-range-cells = <4>;
+ atmel,pll-clk-output-ranges = <600000000 1200000000 0 0>;
+ };
+
+ plladiv: plladivck {
+ compatible = "atmel,at91sam9x5-clk-plldiv";
+ #clock-cells = <0>;
+ clocks = <&plla>;
+ };
+
+ utmi: utmick {
+ compatible = "atmel,at91sam9x5-clk-utmi";
+ #clock-cells = <0>;
+ interrupt-parent = <&pmc>;
+ interrupts = <AT91_PMC_LOCKU>;
+ clocks = <&main>;
+ };
+
+ mck: masterck {
+ compatible = "atmel,at91sam9x5-clk-master";
+ #clock-cells = <0>;
+ interrupt-parent = <&pmc>;
+ interrupts = <AT91_PMC_MCKRDY>;
+ clocks = <&clk32k>, <&main>, <&plladiv>, <&utmi>;
+ atmel,clk-output-range = <125000000 177000000>;
+ atmel,clk-divisors = <1 2 4 3>;
+ };
+
+ h32ck: h32mxck {
+ #clock-cells = <0>;
+ compatible = "atmel,sama5d4-clk-h32mx";
+ clocks = <&mck>;
+ };
+
+ prog: progck {
+ compatible = "atmel,at91sam9x5-clk-programmable";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupt-parent = <&pmc>;
+ clocks = <&clk32k>, <&main>, <&plladiv>, <&utmi>, <&mck>;
+
+ prog0: prog0 {
+ #clock-cells = <0>;
+ reg = <0>;
+ interrupts = <AT91_PMC_PCKRDY(0)>;
+ };
+
+ prog1: prog1 {
+ #clock-cells = <0>;
+ reg = <1>;
+ interrupts = <AT91_PMC_PCKRDY(1)>;
+ };
+
+ prog2: prog2 {
+ #clock-cells = <0>;
+ reg = <2>;
+ interrupts = <AT91_PMC_PCKRDY(2)>;
+ };
+ };
+
+ smd: smdclk {
+ compatible = "atmel,at91sam9x5-clk-smd";
+ #clock-cells = <0>;
+ clocks = <&plladiv>, <&utmi>;
+ };
+
+ systemck {
+ compatible = "atmel,at91rm9200-clk-system";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ddrck: ddrck {
+ #clock-cells = <0>;
+ reg = <2>;
+ clocks = <&mck>;
+ };
+
+ lcdck: lcdck {
+ #clock-cells = <0>;
+ reg = <4>;
+ clocks = <&smd>;
+ };
+
+ smdck: smdck {
+ #clock-cells = <0>;
+ reg = <4>;
+ clocks = <&smd>;
+ };
+
+ pck0: pck0 {
+ #clock-cells = <0>;
+ reg = <8>;
+ clocks = <&prog0>;
+ };
+
+ pck1: pck1 {
+ #clock-cells = <0>;
+ reg = <9>;
+ clocks = <&prog1>;
+ };
+
+ pck2: pck2 {
+ #clock-cells = <0>;
+ reg = <10>;
+ clocks = <&prog2>;
+ };
+ };
+
+ periph32ck {
+ compatible = "atmel,at91sam9x5-clk-peripheral";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&h32ck>;
+
+ pioD_clk: pioD_clk {
+ #clock-cells = <0>;
+ reg = <5>;
+ };
+
+ usart0_clk: usart0_clk {
+ #clock-cells = <0>;
+ reg = <6>;
+ };
+
+ usart1_clk: usart1_clk {
+ #clock-cells = <0>;
+ reg = <7>;
+ };
+
+ icm_clk: icm_clk {
+ #clock-cells = <0>;
+ reg = <9>;
+ };
+
+ aes_clk: aes_clk {
+ #clock-cells = <0>;
+ reg = <12>;
+ };
+
+ tdes_clk: tdes_clk {
+ #clock-cells = <0>;
+ reg = <14>;
+ };
+
+ sha_clk: sha_clk {
+ #clock-cells = <0>;
+ reg = <15>;
+ };
+
+ matrix1_clk: matrix1_clk {
+ #clock-cells = <0>;
+ reg = <17>;
+ };
+
+ hsmc_clk: hsmc_clk {
+ #clock-cells = <0>;
+ reg = <22>;
+ };
+
+ pioA_clk: pioA_clk {
+ #clock-cells = <0>;
+ reg = <23>;
+ };
+
+ pioB_clk: pioB_clk {
+ #clock-cells = <0>;
+ reg = <24>;
+ };
+
+ pioC_clk: pioC_clk {
+ #clock-cells = <0>;
+ reg = <25>;
+ };
+
+ pioE_clk: pioE_clk {
+ #clock-cells = <0>;
+ reg = <26>;
+ };
+
+ usart3_clk: usart3_clk {
+ #clock-cells = <0>;
+ reg = <30>;
+ };
+
+ twi2_clk: twi2_clk {
+ #clock-cells = <0>;
+ reg = <34>;
+ };
+
+ mci0_clk: mci0_clk {
+ #clock-cells = <0>;
+ reg = <35>;
+ };
+
+ mci1_clk: mci1_clk {
+ #clock-cells = <0>;
+ reg = <36>;
+ };
+
+ tcb0_clk: tcb0_clk {
+ #clock-cells = <0>;
+ reg = <40>;
+ };
+
+ tcb1_clk: tcb1_clk {
+ #clock-cells = <0>;
+ reg = <41>;
+ };
+
+ tcb2_clk: tcb2_clk {
+ #clock-cells = <0>;
+ reg = <42>;
+ };
+
+ dbgu_clk: dbgu_clk {
+ #clock-cells = <0>;
+ reg = <45>;
+ };
+
+ uhphs_clk: uhphs_clk {
+ #clock-cells = <0>;
+ reg = <46>;
+ };
+
+ udphs_clk: udphs_clk {
+ #clock-cells = <0>;
+ reg = <47>;
+ };
+
+ trng_clk: trng_clk {
+ #clock-cells = <0>;
+ reg = <53>;
+ };
+
+ macb0_clk: macb0_clk {
+ #clock-cells = <0>;
+ reg = <54>;
+ };
+
+ fuse_clk: fuse_clk {
+ #clock-cells = <0>;
+ reg = <57>;
+ };
+
+ securam_clk: securam_clk {
+ #clock-cells = <0>;
+ reg = <59>;
+ };
+
+ smd_clk: smd_clk {
+ #clock-cells = <0>;
+ reg = <61>;
+ };
+
+ catb_clk: catb_clk {
+ #clock-cells = <0>;
+ reg = <63>;
+ };
+ };
+
+ periph64ck {
+ compatible = "atmel,at91sam9x5-clk-peripheral";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&mck>;
+
+ dma0_clk: dma0_clk {
+ #clock-cells = <0>;
+ reg = <8>;
+ };
+
+ cpkcc_clk: cpkcc_clk {
+ #clock-cells = <0>;
+ reg = <10>;
+ };
+
+ mpddr_clk: mpddr_clk {
+ #clock-cells = <0>;
+ reg = <16>;
+ };
+
+ matrix0_clk: matrix0_clk {
+ #clock-cells = <0>;
+ reg = <18>;
+ };
+
+ vdec_clk: vdec_clk {
+ #clock-cells = <0>;
+ reg = <19>;
+ };
+
+ dma1_clk: dma1_clk {
+ #clock-cells = <0>;
+ reg = <50>;
+ };
+ };
+ };
+
+ mmc0: mmc@f8000000 {
+ compatible = "atmel,hsmci";
+ reg = <0xf8000000 0x600>;
+ interrupts = <35 IRQ_TYPE_LEVEL_HIGH 0>;
+ dmas = <&dma1
+ (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)
+ | AT91_XDMAC_DT_PERID(0))>;
+ dma-names = "rxtx";
+ status = "disabled";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&mci0_clk>;
+ clock-names = "mci_clk";
+ };
+
+ tcb0: timer@f801c000 {
+ compatible = "atmel,at91sam9x5-tcb";
+ reg = <0xf801c000 0x100>;
+ interrupts = <40 IRQ_TYPE_LEVEL_HIGH 0>;
+ clocks = <&tcb0_clk>;
+ clock-names = "t0_clk";
+ };
+
+ macb0: ethernet@f8020000 {
+ compatible = "atmel,sama5d4-gem";
+ reg = <0xf8020000 0x100>;
+ interrupts = <54 IRQ_TYPE_LEVEL_HIGH 3>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_macb0_rmii>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&macb0_clk>, <&macb0_clk>;
+ clock-names = "hclk", "pclk";
+ status = "disabled";
+ };
+
+ i2c2: i2c@f8024000 {
+ compatible = "atmel,at91sam9x5-i2c";
+ reg = <0xf8024000 0x4000>;
+ interrupts = <34 IRQ_TYPE_LEVEL_HIGH 6>;
+ dmas = <&dma1
+ (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)
+ | AT91_XDMAC_DT_PERID(6))>,
+ <&dma1
+ (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)
+ | AT91_XDMAC_DT_PERID(7))>;
+ dma-names = "tx", "rx";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&twi2_clk>;
+ status = "disabled";
+ };
+
+ mmc1: mmc@fc000000 {
+ compatible = "atmel,hsmci";
+ reg = <0xfc000000 0x600>;
+ interrupts = <36 IRQ_TYPE_LEVEL_HIGH 0>;
+ dmas = <&dma1
+ (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)
+ | AT91_XDMAC_DT_PERID(1))>;
+ dma-names = "rxtx";
+ status = "disabled";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&mci1_clk>;
+ clock-names = "mci_clk";
+ };
+
+ usart3: serial@fc00c000 {
+ compatible = "atmel,at91sam9260-usart";
+ reg = <0xfc00c000 0x100>;
+ interrupts = <30 IRQ_TYPE_LEVEL_HIGH 5>;
+ dmas = <&dma1
+ (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)
+ | AT91_XDMAC_DT_PERID(18))>,
+ <&dma1
+ (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)
+ | AT91_XDMAC_DT_PERID(19))>;
+ dma-names = "tx", "rx";
+ clocks = <&usart3_clk>;
+ clock-names = "usart";
+ };
+
+ tcb1: timer@fc020000 {
+ compatible = "atmel,at91sam9x5-tcb";
+ reg = <0xfc020000 0x100>;
+ interrupts = <41 IRQ_TYPE_LEVEL_HIGH 0>;
+ clocks = <&tcb1_clk>;
+ clock-names = "t0_clk";
+ };
+
+ rstc@fc068600 {
+ compatible = "atmel,at91sam9g45-rstc";
+ reg = <0xfc068600 0x10>;
+ };
+
+ shdwc@fc068610 {
+ compatible = "atmel,at91sam9x5-shdwc";
+ reg = <0xfc068610 0x10>;
+ };
+
+ pit: timer@fc068630 {
+ compatible = "atmel,at91sam9260-pit";
+ reg = <0xfc068630 0x10>;
+ interrupts = <3 IRQ_TYPE_LEVEL_HIGH 5>;
+ clocks = <&h32ck>;
+ };
+
+ watchdog@fc068640 {
+ compatible = "atmel,at91sam9260-wdt";
+ reg = <0xfc068640 0x10>;
+ status = "disabled";
+ };
+
+ sckc@fc068650 {
+ compatible = "atmel,at91sam9x5-sckc";
+ reg = <0xfc068650 0x4>;
+
+ slow_rc_osc: slow_rc_osc {
+ compatible = "atmel,at91sam9x5-clk-slow-rc-osc";
+ #clock-cells = <0>;
+ clock-frequency = <32768>;
+ clock-accuracy = <250000000>;
+ atmel,startup-time-usec = <75>;
+ };
+
+ slow_osc: slow_osc {
+ compatible = "atmel,at91sam9x5-clk-slow-osc";
+ #clock-cells = <0>;
+ clocks = <&slow_xtal>;
+ atmel,startup-time-usec = <1200000>;
+ };
+
+ clk32k: slowck {
+ compatible = "atmel,at91sam9x5-clk-slow";
+ #clock-cells = <0>;
+ clocks = <&slow_rc_osc &slow_osc>;
+ };
+ };
+
+ rtc@fc0686b0 {
+ compatible = "atmel,at91rm9200-rtc";
+ reg = <0xfc0686b0 0x30>;
+ interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
+ };
+
+ dbgu: serial@fc069000 {
+ compatible = "atmel,at91sam9260-usart";
+ reg = <0xfc069000 0x200>;
+ interrupts = <2 IRQ_TYPE_LEVEL_HIGH 7>;
+ clocks = <&dbgu_clk>;
+ clock-names = "usart";
+ status = "disabled";
+ };
+
+ pio_reg: syscon@fc06a000 {
+ compatible = "atmel,sama5d4-pio_reg", "syscon";
+ reg = <0xfc06a000 0x5000>;
+ };
+
+ pinctrl@fc06a000 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "atmel,sama5d4-pinctrl", "simple-bus";
+ atmel,pio_reg = <&pio_reg 0x0>;
+ };
+
+ pioA: gpio@fc06a000 {
+ compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
+ interrupts = <23 IRQ_TYPE_LEVEL_HIGH 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&pioA_clk>;
+ };
+
+ pioB: gpio@fc06b000 {
+ compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
+ interrupts = <24 IRQ_TYPE_LEVEL_HIGH 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&pioB_clk>;
+ };
+
+ pioC: gpio@fc06c000 {
+ compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
+ interrupts = <25 IRQ_TYPE_LEVEL_HIGH 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&pioC_clk>;
+ };
+
+ pioD: gpio@fc06d000 {
+ compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
+ interrupts = <5 IRQ_TYPE_LEVEL_HIGH 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&pioD_clk>;
+ };
+
+ pioE: gpio@fc06e000 {
+ compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
+ interrupts = <26 IRQ_TYPE_LEVEL_HIGH 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&pioE_clk>;
+ };
+
+ aic: interrupt-controller@fc06e000 {
+ #interrupt-cells = <3>;
+ compatible = "atmel,sama5d4-aic";
+ interrupt-controller;
+ reg = <0xfc06e000 0x200>;
+ atmel,external-irqs = <56>;
+ };
+ };
+ };
+};
--
2.2.0
^ permalink raw reply related [flat|nested] 14+ messages in thread
* [RFC PATCH 4/4] ARM: at91/dt: proto dt
@ 2015-04-02 9:38 ` Ludovic Desroches
0 siblings, 0 replies; 14+ messages in thread
From: Ludovic Desroches @ 2015-04-02 9:38 UTC (permalink / raw)
To: linux-arm-kernel
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
---
arch/arm/boot/dts/Makefile | 1 +
arch/arm/boot/dts/at91-sama5d4ek_proto.dts | 243 ++++++++++
arch/arm/boot/dts/sama5d4_proto-pinfunc.h | 463 +++++++++++++++++++
arch/arm/boot/dts/sama5d4_proto.dtsi | 716 +++++++++++++++++++++++++++++
4 files changed, 1423 insertions(+)
create mode 100644 arch/arm/boot/dts/at91-sama5d4ek_proto.dts
create mode 100644 arch/arm/boot/dts/sama5d4_proto-pinfunc.h
create mode 100644 arch/arm/boot/dts/sama5d4_proto.dtsi
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index f6d923d..40e1052 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -56,6 +56,7 @@ dtb-$(CONFIG_ARCH_AT91) += sama5d36ek_revc.dtb
# sama5d4
dtb-$(CONFIG_ARCH_AT91) += at91-sama5d4_xplained.dtb
dtb-$(CONFIG_ARCH_AT91) += at91-sama5d4ek.dtb
+dtb-$(CONFIG_ARCH_AT91) += at91-sama5d4ek_proto.dtb
dtb-$(CONFIG_ARCH_ATLAS6) += atlas6-evb.dtb
dtb-$(CONFIG_ARCH_AXXIA) += axm5516-amarillo.dtb
diff --git a/arch/arm/boot/dts/at91-sama5d4ek_proto.dts b/arch/arm/boot/dts/at91-sama5d4ek_proto.dts
new file mode 100644
index 0000000..24d92d3
--- /dev/null
+++ b/arch/arm/boot/dts/at91-sama5d4ek_proto.dts
@@ -0,0 +1,243 @@
+/*
+ * at91-sama5d4ek.dts - Device Tree file for SAMA5D4 Evaluation Kit
+ *
+ * Copyright (C) 2014 Atmel,
+ * 2014 Nicolas Ferre <nicolas.ferre@atmel.com>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+/dts-v1/;
+#include "sama5d4_proto.dtsi"
+
+/ {
+ model = "Atmel SAMA5D4-EK";
+ compatible = "atmel,sama5d4ek", "atmel,sama5d4", "atmel,sama5";
+
+ chosen {
+ bootargs = "console=ttyS0,115200 ignore_loglevel earlyprintk";
+ };
+
+ memory {
+ reg = <0x20000000 0x20000000>;
+ };
+
+ clocks {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ main_clock: clock at 0 {
+ compatible = "atmel,osc", "fixed-clock";
+ clock-frequency = <12000000>;
+ };
+
+ slow_xtal {
+ clock-frequency = <32768>;
+ };
+
+ main_xtal {
+ clock-frequency = <12000000>;
+ };
+ };
+
+ ahb {
+ apb {
+ pinctrl at fc06a000 {
+ group_defs {
+ mac0_0_rmii {
+ pins = <PIN_PB0__G0_TXCK>,
+ <PIN_PB2__G0_TXEN>,
+ <PIN_PB6__G0_RXDV>,
+ <PIN_PB7__G0_RXER>,
+ <PIN_PB8__G0_RX0>,
+ <PIN_PB9__G0_RX1>,
+ <PIN_PB12__G0_TX0>,
+ <PIN_PB13__G0_TX1>,
+ <PIN_PB16__G0_MDC>,
+ <PIN_PB17__G0_MDIO>;
+ };
+
+ mci0_0_4bit {
+ pins = <PIN_PC4__MCI0_CK>,
+ <PIN_PC5__MCI0_CDA>,
+ <PIN_PC6__MCI0_DA0>,
+ <PIN_PC7__MCI0_DA1>,
+ <PIN_PC8__MCI0_DA2>,
+ <PIN_PC9__MCI0_DA3>;
+ };
+
+ mci1_0_4bit {
+ pins = <PIN_PE18__MCI1_CK>,
+ <PIN_PE19__MCI1_CDA>,
+ <PIN_PE20__MCI1_DA0>,
+ <PIN_PE21__MCI1_DA1>,
+ <PIN_PE22__MCI1_DA2>,
+ <PIN_PE23__MCI1_DA3>;
+ };
+
+ i2c2_0 {
+ pins = <PIN_PB29__TWD2>,
+ <PIN_PB30__TWCK2>;
+ };
+ };
+
+ pinctrl_mac0_default: mac0_default {
+ mux {
+ function = "A";
+ groups = "mac0_0_rmii";
+ };
+ };
+
+ pinctrl_i2c2_default: i2c2_default {
+ mux {
+ function = "A";
+ groups = "i2c2_0";
+ };
+ };
+
+ pinctrl_mci0_default: mci0_default {
+ mux {
+ function = "B";
+ groups = "mci0_0_4bit";
+ };
+
+ conf-cmd_data {
+ pins = <PIN_PC5__MCI0_CDA>,
+ <PIN_PC6__MCI0_DA0>,
+ <PIN_PC7__MCI0_DA1>,
+ <PIN_PC8__MCI0_DA2>,
+ <PIN_PC9__MCI0_DA3>;
+ bias-pull-up;
+ };
+ };
+
+ pinctrl_mci1_default: mci1_default {
+ mux {
+ function = "C";
+ groups = "mci1_0_4bit";
+ };
+
+ conf-cmd_data {
+ pins = <PIN_PE19__MCI1_CDA>,
+ <PIN_PE20__MCI1_DA0>,
+ <PIN_PE21__MCI1_DA1>,
+ <PIN_PE22__MCI1_DA2>,
+ <PIN_PE23__MCI1_DA3>;
+ bias-pull-up;
+ };
+ };
+
+ };
+
+ mmc0: mmc at f8000000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_mci0_default>;
+ status = "okay";
+ slot at 1 {
+ reg = <1>;
+ bus-width = <4>;
+ cd-gpios = <&pioE 5 0>;
+ };
+ };
+
+ macb0: ethernet at f8020000 {
+ phy-mode = "rmii";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_mac0_default>;
+ status = "okay";
+ };
+
+ i2c2: i2c at f8024000 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c2_default>;
+ };
+
+ mmc1: mmc at fc000000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_mci1_default>;
+ status = "okay";
+ slot at 0 {
+ reg = <0>;
+ bus-width = <4>;
+ cd-gpios = <&pioE 6 0>;
+ };
+ };
+
+ watchdog at fc068640 {
+ status = "okay";
+ };
+ };
+ };
+
+ gpio_keys {
+ compatible = "gpio-keys";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pb_user1 {
+ label = "pb_user1";
+ gpios = <&pioE 13 GPIO_ACTIVE_HIGH>;
+ linux,code = <0x100>;
+ gpio-key,wakeup;
+ };
+ };
+
+ leds {
+ compatible = "gpio-leds";
+ status = "okay";
+
+ d8 {
+ label = "d8";
+ /* PE28, conflicts with usart4 rts pin */
+ gpios = <&pioE 28 GPIO_ACTIVE_LOW>;
+ };
+
+ d9 {
+ label = "d9";
+ gpios = <&pioE 9 GPIO_ACTIVE_HIGH>;
+ };
+
+ d10 {
+ label = "d10";
+ gpios = <&pioE 8 GPIO_ACTIVE_LOW>;
+ linux,default-trigger = "heartbeat";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/sama5d4_proto-pinfunc.h b/arch/arm/boot/dts/sama5d4_proto-pinfunc.h
new file mode 100644
index 0000000..a960da3
--- /dev/null
+++ b/arch/arm/boot/dts/sama5d4_proto-pinfunc.h
@@ -0,0 +1,463 @@
+#define PINMUX_PIN(no, ioset) \
+( ((no) & 0xffff) | (((ioset) & 0xff) << 16) )
+
+#define PIN_PA0 0
+#define PIN_PA0__LCDDAT0 PINMUX_PIN(PIN_PA0, 0)
+#define PIN_PA0__TMS PINMUX_PIN(PIN_PA0, 0)
+#define PIN_PA1 1
+#define PIN_PA1__LCDDAT1 PINMUX_PIN(PIN_PA1, 0)
+#define PIN_PA2 2
+#define PIN_PA2__LCDDAT2 PINMUX_PIN(PIN_PA2, 0)
+#define PIN_PA2__G1_TXCK PINMUX_PIN(PIN_PA2, 0)
+#define PIN_PA3 3
+#define PIN_PA3__LCDDAT3 PINMUX_PIN(PIN_PA3, 0)
+#define PIN_PA3__G1_RXCK PINMUX_PIN(PIN_PA3, 0)
+#define PIN_PA4 4
+#define PIN_PA4__LCDDAT4 PINMUX_PIN(PIN_PA4, 0)
+#define PIN_PA4__G1_TXEN PINMUX_PIN(PIN_PA4, 0)
+#define PIN_PA5 5
+#define PIN_PA5__LCDDAT5 PINMUX_PIN(PIN_PA5, 0)
+#define PIN_PA5__G1_TXER PINMUX_PIN(PIN_PA5, 0)
+#define PIN_PA6 6
+#define PIN_PA6__LCDDAT6 PINMUX_PIN(PIN_PA6, 0)
+#define PIN_PA6__G1_CRS PINMUX_PIN(PIN_PA6, 0)
+#define PIN_PA7 7
+#define PIN_PA7__LCDDAT7 PINMUX_PIN(PIN_PA7, 0)
+#define PIN_PA8 8
+#define PIN_PA8__LCDDAT8 PINMUX_PIN(PIN_PA8, 0)
+#define PIN_PA8__TCK PINMUX_PIN(PIN_PA8, 0)
+#define PIN_PA9 9
+#define PIN_PA9__LCDDAT9 PINMUX_PIN(PIN_PA9, 0)
+#define PIN_PA9__G1_COL PINMUX_PIN(PIN_PA9, 0)
+#define PIN_PA10 10
+#define PIN_PA10__LCDDAT10 PINMUX_PIN(PIN_PA10, 0)
+#define PIN_PA10__G1_RXDV PINMUX_PIN(PIN_PA10, 0)
+#define PIN_PA11 11
+#define PIN_PA11__LCDDAT11 PINMUX_PIN(PIN_PA11, 0)
+#define PIN_PA11__G1_RXER PINMUX_PIN(PIN_PA11, 0)
+#define PIN_PA12 12
+#define PIN_PA12__LCDDAT12 PINMUX_PIN(PIN_PA12, 0)
+#define PIN_PA12__G1_RX0 PINMUX_PIN(PIN_PA12, 0)
+#define PIN_PA13 13
+#define PIN_PA13__LCDDAT13 PINMUX_PIN(PIN_PA13, 0)
+#define PIN_PA13__G1_RX1 PINMUX_PIN(PIN_PA13, 0)
+#define PIN_PA14 14
+#define PIN_PA14__LCDDAT14 PINMUX_PIN(PIN_PA14, 0)
+#define PIN_PA14__G1_TX0 PINMUX_PIN(PIN_PA14, 0)
+#define PIN_PA15 15
+#define PIN_PA15__LCDDAT15 PINMUX_PIN(PIN_PA15, 0)
+#define PIN_PA15__G1_TX1 PINMUX_PIN(PIN_PA15, 0)
+#define PIN_PA16 16
+#define PIN_PA16__LCDDAT16 PINMUX_PIN(PIN_PA16, 0)
+#define PIN_PA16__NTRST PINMUX_PIN(PIN_PA16, 0)
+#define PIN_PA17 17
+#define PIN_PA17__LCDDAT17 PINMUX_PIN(PIN_PA17, 0)
+#define PIN_PA18 18
+#define PIN_PA18__LCDDAT18 PINMUX_PIN(PIN_PA18, 0)
+#define PIN_PA18__G1_RX2 PINMUX_PIN(PIN_PA18, 0)
+#define PIN_PA19 19
+#define PIN_PA19__LCDDAT19 PINMUX_PIN(PIN_PA19, 0)
+#define PIN_PA19__G1_RX3 PINMUX_PIN(PIN_PA19, 0)
+#define PIN_PA20 20
+#define PIN_PA20__LCDDAT20 PINMUX_PIN(PIN_PA20, 0)
+#define PIN_PA20__G1_TX2 PINMUX_PIN(PIN_PA20, 0)
+#define PIN_PA21 21
+#define PIN_PA21__LCDDAT21 PINMUX_PIN(PIN_PA21, 0)
+#define PIN_PA21__G1_TX3 PINMUX_PIN(PIN_PA21, 0)
+#define PIN_PA22 22
+#define PIN_PA22__LCDDAT22 PINMUX_PIN(PIN_PA22, 0)
+#define PIN_PA22__G1_MDC PINMUX_PIN(PIN_PA22, 0)
+#define PIN_PA23 23
+#define PIN_PA23__LCDDAT23 PINMUX_PIN(PIN_PA23, 0)
+#define PIN_PA23__G1_MDIO PINMUX_PIN(PIN_PA23, 0)
+#define PIN_PA24 24
+#define PIN_PA24__LCDPWM PINMUX_PIN(PIN_PA24, 0)
+#define PIN_PA24__PCK0 PINMUX_PIN(PIN_PA24, 0)
+#define PIN_PA25 25
+#define PIN_PA25__LCDDISP PINMUX_PIN(PIN_PA25, 0)
+#define PIN_PA25__TD0 PINMUX_PIN(PIN_PA25, 0)
+#define PIN_PA26 26
+#define PIN_PA26__LCDVSYNC PINMUX_PIN(PIN_PA26, 0)
+#define PIN_PA26__PWMH0 PINMUX_PIN(PIN_PA26, 0)
+#define PIN_PA26__SPI1_NPCS1 PINMUX_PIN(PIN_PA26, 0)
+#define PIN_PA27 27
+#define PIN_PA27__LCDHSYNC PINMUX_PIN(PIN_PA27, 0)
+#define PIN_PA27__PWML0 PINMUX_PIN(PIN_PA27, 0)
+#define PIN_PA27__SPI1_NPCS2 PINMUX_PIN(PIN_PA27, 0)
+#define PIN_PA28 28
+#define PIN_PA28__LCDPCK PINMUX_PIN(PIN_PA28, 0)
+#define PIN_PA28__PWMH1 PINMUX_PIN(PIN_PA28, 0)
+#define PIN_PA28__SPI1_NPCS3 PINMUX_PIN(PIN_PA28, 0)
+#define PIN_PA29 29
+#define PIN_PA29__LCDDEN PINMUX_PIN(PIN_PA29, 0)
+#define PIN_PA29__PWML1 PINMUX_PIN(PIN_PA29, 0)
+#define PIN_PA30 30
+#define PIN_PA30__TWD0 PINMUX_PIN(PIN_PA30, 0)
+#define PIN_PA31 31
+#define PIN_PA31__TWCK0 PINMUX_PIN(PIN_PA31, 0)
+#define PIN_PB0 32
+#define PIN_PB0__G0_TXCK PINMUX_PIN(PIN_PB0, 0)
+#define PIN_PB1 33
+#define PIN_PB1__G0_RXCK PINMUX_PIN(PIN_PB1, 0)
+#define PIN_PB1__SCK2 PINMUX_PIN(PIN_PB1, 0)
+#define PIN_PB1__ISI_PCK PINMUX_PIN(PIN_PB1, 0)
+#define PIN_PB2 34
+#define PIN_PB2__G0_TXEN PINMUX_PIN(PIN_PB2, 0)
+#define PIN_PB3 35
+#define PIN_PB3__G0_TXER PINMUX_PIN(PIN_PB3, 0)
+#define PIN_PB3__CTS2 PINMUX_PIN(PIN_PB3, 0)
+#define PIN_PB3__ISI_VSYNC PINMUX_PIN(PIN_PB3, 0)
+#define PIN_PB4 36
+#define PIN_PB4__G0_CRS PINMUX_PIN(PIN_PB4, 1)
+#define PIN_PB4__RXD2 PINMUX_PIN(PIN_PB4, 1)
+#define PIN_PB4__ISI_HSYNC PINMUX_PIN(PIN_PB4, 1)
+#define PIN_PB5 37
+#define PIN_PB5__G0_COL PINMUX_PIN(PIN_PB5, 0)
+#define PIN_PB5__TXD2 PINMUX_PIN(PIN_PB5, 0)
+#define PIN_PB5__PCK2 PINMUX_PIN(PIN_PB5, 0)
+#define PIN_PB6 38
+#define PIN_PB6__G0_RXDV PINMUX_PIN(PIN_PB6, 0)
+#define PIN_PB7 39
+#define PIN_PB7__G0_RXER PINMUX_PIN(PIN_PB7, 0)
+#define PIN_PB8 40
+#define PIN_PB8__G0_RX0 PINMUX_PIN(PIN_PB8, 0)
+#define PIN_PB9 41
+#define PIN_PB9__G0_RX1 PINMUX_PIN(PIN_PB9, 0)
+#define PIN_PB10 42
+#define PIN_PB10__G0_RX2 PINMUX_PIN(PIN_PB10, 0)
+#define PIN_PB10__PCK2 PINMUX_PIN(PIN_PB10, 0)
+#define PIN_PB10__PWML1 PINMUX_PIN(PIN_PB10, 0)
+#define PIN_PB11 43
+#define PIN_PB11__G0_RX3 PINMUX_PIN(PIN_PB11, 0)
+#define PIN_PB11__RTS2 PINMUX_PIN(PIN_PB11, 0)
+#define PIN_PB11__PWMH1 PINMUX_PIN(PIN_PB11, 0)
+#define PIN_PB12 44
+#define PIN_PB12__G0_TX0 PINMUX_PIN(PIN_PB12, 0)
+#define PIN_PB13 45
+#define PIN_PB13__G0_TX1 PINMUX_PIN(PIN_PB13, 0)
+#define PIN_PB14 46
+#define PIN_PB14__G0_TX2 PINMUX_PIN(PIN_PB14, 0)
+#define PIN_PB14__SPI2_NPCS1 PINMUX_PIN(PIN_PB14, 0)
+#define PIN_PB14__PWMH0 PINMUX_PIN(PIN_PB14, 0)
+#define PIN_PB15 47
+#define PIN_PB15__G0_TX3 PINMUX_PIN(PIN_PB15, 0)
+#define PIN_PB15__SPI2_NPCS2 PINMUX_PIN(PIN_PB15, 0)
+#define PIN_PB15__PWML0 PINMUX_PIN(PIN_PB15, 0)
+#define PIN_PB16 48
+#define PIN_PB16__G0_MDC PINMUX_PIN(PIN_PB16, 0)
+#define PIN_PB17 49
+#define PIN_PB17__G0_MDIO PINMUX_PIN(PIN_PB17, 0)
+#define PIN_PB18 50
+#define PIN_PB18__SPI1_MISO PINMUX_PIN(PIN_PB18, 0)
+#define PIN_PB18__D8 PINMUX_PIN(PIN_PB18, 0)
+#define PIN_PB19 51
+#define PIN_PB19__SPI1_MISO PINMUX_PIN(PIN_PB19, 0)
+#define PIN_PB19__D9 PINMUX_PIN(PIN_PB19, 0)
+#define PIN_PB20 52
+#define PIN_PB20__SPI1_SPCK PINMUX_PIN(PIN_PB20, 0)
+#define PIN_PB20__D10 PINMUX_PIN(PIN_PB20, 0)
+#define PIN_PB21 53
+#define PIN_PB21__SPI1_NPCS0 PINMUX_PIN(PIN_PB21, 0)
+#define PIN_PB21__D11 PINMUX_PIN(PIN_PB21, 0)
+#define PIN_PB22 54
+#define PIN_PB22__SPI1_NPCS1 PINMUX_PIN(PIN_PB22, 0)
+#define PIN_PB22__D12 PINMUX_PIN(PIN_PB22, 0)
+#define PIN_PB23 55
+#define PIN_PB23__SPI1_NPCS2 PINMUX_PIN(PIN_PB23, 0)
+#define PIN_PB23__D13 PINMUX_PIN(PIN_PB23, 0)
+#define PIN_PB24 56
+#define PIN_PB24__DRXD PINMUX_PIN(PIN_PB24, 0)
+#define PIN_PB24__D14 PINMUX_PIN(PIN_PB24, 0)
+#define PIN_PB24__TDI PINMUX_PIN(PIN_PB24, 0)
+#define PIN_PB25 57
+#define PIN_PB25__DTXD PINMUX_PIN(PIN_PB25, 0)
+#define PIN_PB25__D15 PINMUX_PIN(PIN_PB25, 0)
+#define PIN_PB25__TD0 PINMUX_PIN(PIN_PB25, 0)
+#define PIN_PB26 58
+#define PIN_PB26__PCK0 PINMUX_PIN(PIN_PB26, 0)
+#define PIN_PB26__RK0 PINMUX_PIN(PIN_PB26, 0)
+#define PIN_PB26__PWMH0 PINMUX_PIN(PIN_PB26, 0)
+#define PIN_PB27 59
+#define PIN_PB27__SPI1_NPCS3 PINMUX_PIN(PIN_PB27, 0)
+#define PIN_PB27__TK0 PINMUX_PIN(PIN_PB27, 0)
+#define PIN_PB27__PWML0 PINMUX_PIN(PIN_PB27, 0)
+#define PIN_PB28 60
+#define PIN_PB28__SPI2_NPCS3 PINMUX_PIN(PIN_PB28, 0)
+#define PIN_PB28__TD0 PINMUX_PIN(PIN_PB28, 0)
+#define PIN_PB28__PWMH1 PINMUX_PIN(PIN_PB28, 0)
+#define PIN_PB29 61
+#define PIN_PB29__TWD2 PINMUX_PIN(PIN_PB29, 0)
+#define PIN_PB29__RD0 PINMUX_PIN(PIN_PB29, 0)
+#define PIN_PB29__PWML1 PINMUX_PIN(PIN_PB29, 0)
+#define PIN_PB30 62
+#define PIN_PB30__TWCK2 PINMUX_PIN(PIN_PB30, 0)
+#define PIN_PB30__RF0 PINMUX_PIN(PIN_PB30, 0)
+#define PIN_PB31 63
+#define PIN_PB31__TF0 PINMUX_PIN(PIN_PB31, 0)
+#define PIN_PC0 64
+#define PIN_PC0__SPI0_MISO PINMUX_PIN(PIN_PC0, 0)
+#define PIN_PC0__PWMH2 PINMUX_PIN(PIN_PC0, 0)
+#define PIN_PC0__ISI_D8 PINMUX_PIN(PIN_PC0, 0)
+#define PIN_PC1 65
+#define PIN_PC1__SPI0_MOSI PINMUX_PIN(PIN_PC1, 0)
+#define PIN_PC1__PWML2 PINMUX_PIN(PIN_PC1, 0)
+#define PIN_PC1__ISI_D9 PINMUX_PIN(PIN_PC1, 0)
+#define PIN_PC2 66
+#define PIN_PC2__SPI0_SPCK PINMUX_PIN(PIN_PC2, 0)
+#define PIN_PC2__PWMH3 PINMUX_PIN(PIN_PC2, 0)
+#define PIN_PC2__ISI_D10 PINMUX_PIN(PIN_PC2, 0)
+#define PIN_PC3 67
+#define PIN_PC3__SPI0_NPCS0 PINMUX_PIN(PIN_PC3, 0)
+#define PIN_PC3__PWML3 PINMUX_PIN(PIN_PC3, 0)
+#define PIN_PC3__ISI_D11 PINMUX_PIN(PIN_PC3, 0)
+#define PIN_PC4 68
+#define PIN_PC4__SPI0_NPCS1 PINMUX_PIN(PIN_PC4, 0)
+#define PIN_PC4__MCI0_CK PINMUX_PIN(PIN_PC4, 0)
+#define PIN_PC4__PCK1 PINMUX_PIN(PIN_PC4, 0)
+#define PIN_PC5 69
+#define PIN_PC5__D0 PINMUX_PIN(PIN_PC5, 0)
+#define PIN_PC5__MCI0_CDA PINMUX_PIN(PIN_PC5, 0)
+#define PIN_PC6 70
+#define PIN_PC6__D1 PINMUX_PIN(PIN_PC6, 0)
+#define PIN_PC6__MCI0_DA0 PINMUX_PIN(PIN_PC6, 0)
+#define PIN_PC7 71
+#define PIN_PC7__D2 PINMUX_PIN(PIN_PC7, 0)
+#define PIN_PC7__MCI0_DA1 PINMUX_PIN(PIN_PC7, 0)
+#define PIN_PC8 72
+#define PIN_PC8__D3 PINMUX_PIN(PIN_PC8, 0)
+#define PIN_PC8__MCI0_DA2 PINMUX_PIN(PIN_PC8, 0)
+#define PIN_PC9 73
+#define PIN_PC9__D4 PINMUX_PIN(PIN_PC9, 0)
+#define PIN_PC9__MCI0_DA3 PINMUX_PIN(PIN_PC9, 0)
+#define PIN_PC10 74
+#define PIN_PC10__D5 PINMUX_PIN(PIN_PC10, 0)
+#define PIN_PC10__MCI0_DA4 PINMUX_PIN(PIN_PC10, 0)
+#define PIN_PC11 75
+#define PIN_PC11__D6 PINMUX_PIN(PIN_PC11, 0)
+#define PIN_PC11__MCI0_DA5 PINMUX_PIN(PIN_PC11, 0)
+#define PIN_PC12 76
+#define PIN_PC12__D7 PINMUX_PIN(PIN_PC12, 0)
+#define PIN_PC12__MCI0_DA6 PINMUX_PIN(PIN_PC12, 0)
+#define PIN_PC13 77
+#define PIN_PC13__NRD_NANDOE PINMUX_PIN(PIN_PC13, 0)
+#define PIN_PC13__MCI0_DA7 PINMUX_PIN(PIN_PC13, 0)
+#define PIN_PC14 78
+#define PIN_PC14__NWE_NANDWE PINMUX_PIN(PIN_PC14, 0)
+#define PIN_PC15 79
+#define PIN_PC15__NCS3 PINMUX_PIN(PIN_PC15, 0)
+#define PIN_PC16 80
+#define PIN_PC16__NANDRDY PINMUX_PIN(PIN_PC16, 0)
+#define PIN_PC17 81
+#define PIN_PC17__A21_NANDALE PINMUX_PIN(PIN_PC17, 0)
+#define PIN_PC18 82
+#define PIN_PC18__A22_NANDCLE PINMUX_PIN(PIN_PC18, 0)
+#define PIN_PC19 83
+#define PIN_PC19__ISI_D0 PINMUX_PIN(PIN_PC19, 0)
+#define PIN_PC19__TK1 PINMUX_PIN(PIN_PC19, 0)
+#define PIN_PC20 84
+#define PIN_PC20__ISI_D1 PINMUX_PIN(PIN_PC20, 0)
+#define PIN_PC20__TF1 PINMUX_PIN(PIN_PC20, 0)
+#define PIN_PC21 85
+#define PIN_PC21__ISI_D2 PINMUX_PIN(PIN_PC21, 0)
+#define PIN_PC21__TD1 PINMUX_PIN(PIN_PC21, 0)
+#define PIN_PC22 86
+#define PIN_PC22__ISI_D3 PINMUX_PIN(PIN_PC22, 0)
+#define PIN_PC22__RF1 PINMUX_PIN(PIN_PC22, 0)
+#define PIN_PC23 87
+#define PIN_PC23__ISI_D4 PINMUX_PIN(PIN_PC23, 0)
+#define PIN_PC23__RD1 PINMUX_PIN(PIN_PC23, 0)
+#define PIN_PC24 88
+#define PIN_PC24__ISI_D5 PINMUX_PIN(PIN_PC24, 0)
+#define PIN_PC24__RK1 PINMUX_PIN(PIN_PC24, 0)
+#define PIN_PC24__PCK1 PINMUX_PIN(PIN_PC24, 0)
+#define PIN_PC25 89
+#define PIN_PC25__ISI_D6 PINMUX_PIN(PIN_PC25, 0)
+#define PIN_PC25__TWD3 PINMUX_PIN(PIN_PC25, 0)
+#define PIN_PC25__URXD1 PINMUX_PIN(PIN_PC25, 0)
+#define PIN_PC26 90
+#define PIN_PC26__ISI_D7 PINMUX_PIN(PIN_PC26, 0)
+#define PIN_PC26__TWCK3 PINMUX_PIN(PIN_PC26, 0)
+#define PIN_PC26__UTXD1 PINMUX_PIN(PIN_PC26, 0)
+#define PIN_PC27 91
+#define PIN_PC27__AD0 PINMUX_PIN(PIN_PC27, 0)
+#define PIN_PC27__SPI0_NPCS1 PINMUX_PIN(PIN_PC27, 0)
+#define PIN_PC27__PWML0 PINMUX_PIN(PIN_PC27, 0)
+#define PIN_PC28 92
+#define PIN_PC28__AD1 PINMUX_PIN(PIN_PC28, 0)
+#define PIN_PC28__SPI0_NPCS2 PINMUX_PIN(PIN_PC28, 0)
+#define PIN_PC28__PWML1 PINMUX_PIN(PIN_PC28, 0)
+#define PIN_PC29 93
+#define PIN_PC29__AD2 PINMUX_PIN(PIN_PC29, 0)
+#define PIN_PC29__SPI0_NPCS3 PINMUX_PIN(PIN_PC29, 0)
+#define PIN_PC29__PWMFI0 PINMUX_PIN(PIN_PC29, 0)
+#define PIN_PC30 94
+#define PIN_PC30__AD3 PINMUX_PIN(PIN_PC30, 0)
+#define PIN_PC30__PWMH0 PINMUX_PIN(PIN_PC30, 0)
+#define PIN_PC31 95
+#define PIN_PC31__AD4 PINMUX_PIN(PIN_PC31, 0)
+#define PIN_PC31__PWMH1 PINMUX_PIN(PIN_PC31, 0)
+#define PIN_PD0 96
+#define PIN_PD1 97
+#define PIN_PD2 98
+#define PIN_PD3 99
+#define PIN_PD4 100
+#define PIN_PD5 101
+#define PIN_PD6 102
+#define PIN_PD7 103
+#define PIN_PD8 104
+#define PIN_PD8__PCK0 PINMUX_PIN(PIN_PD8, 0)
+#define PIN_PD9 105
+#define PIN_PD9__FIQ PINMUX_PIN(PIN_PD9, 0)
+#define PIN_PD10 106
+#define PIN_PD10__CTS0 PINMUX_PIN(PIN_PD10, 0)
+#define PIN_PD11 107
+#define PIN_PD11__RTS0 PINMUX_PIN(PIN_PD11, 0)
+#define PIN_PD11__SPI2_MISO PINMUX_PIN(PIN_PD11, 0)
+#define PIN_PD12 108
+#define PIN_PD12__RXD0 PINMUX_PIN(PIN_PD12, 0)
+#define PIN_PD13 109
+#define PIN_PD13__TXD0 PINMUX_PIN(PIN_PD13, 0)
+#define PIN_PD13__SPI2_MOSI PINMUX_PIN(PIN_PD13, 0)
+#define PIN_PD14 110
+#define PIN_PD14__CTS1 PINMUX_PIN(PIN_PD14, 0)
+#define PIN_PD15 111
+#define PIN_PD15__RTS1 PINMUX_PIN(PIN_PD15, 0)
+#define PIN_PD15__SPI2_SPCK PINMUX_PIN(PIN_PD15, 0)
+#define PIN_PD16 112
+#define PIN_PD16__RXD1 PINMUX_PIN(PIN_PD16, 0)
+#define PIN_PD17 113
+#define PIN_PD17__TXD1 PINMUX_PIN(PIN_PD17, 0)
+#define PIN_PD17__SPI2_NPCS0 PINMUX_PIN(PIN_PD17, 0)
+#define PIN_PD18 114
+#define PIN_PD19 115
+#define PIN_PD20 116
+#define PIN_PD21 117
+#define PIN_PD22 118
+#define PIN_PD23 119
+#define PIN_PD24 120
+#define PIN_PD25 121
+#define PIN_PD26 122
+#define PIN_PD27 123
+#define PIN_PD28 124
+#define PIN_PD28__SCK0 PINMUX_PIN(PIN_PD28, 0)
+#define PIN_PD29 125
+#define PIN_PD29__SCK1 PINMUX_PIN(PIN_PD29, 0)
+#define PIN_PD30 126
+#define PIN_PD31 127
+#define PIN_PD31__SPI0_NPCS2 PINMUX_PIN(PIN_PD31, 0)
+#define PIN_PD31__PCK1 PINMUX_PIN(PIN_PD31, 0)
+#define PIN_PE0 128
+#define PIN_PE0__A0_NBS0 PINMUX_PIN(PIN_PE0, 0)
+#define PIN_PE0__MCI0_CDB PINMUX_PIN(PIN_PE0, 0)
+#define PIN_PE0__CTS4 PINMUX_PIN(PIN_PE0, 0)
+#define PIN_PE1 129
+#define PIN_PE1__A1 PINMUX_PIN(PIN_PE1, 0)
+#define PIN_PE1__MCI0_DB0 PINMUX_PIN(PIN_PE1, 0)
+#define PIN_PE2 130
+#define PIN_PE2__A2 PINMUX_PIN(PIN_PE2, 0)
+#define PIN_PE2__MCI0_DB1 PINMUX_PIN(PIN_PE2, 0)
+#define PIN_PE3 131
+#define PIN_PE3__A3 PINMUX_PIN(PIN_PE3, 0)
+#define PIN_PE3__MCI0_DB2 PINMUX_PIN(PIN_PE3, 0)
+#define PIN_PE4 132
+#define PIN_PE4__A4 PINMUX_PIN(PIN_PE4, 0)
+#define PIN_PE4__MCI0_DB3 PINMUX_PIN(PIN_PE4, 0)
+#define PIN_PE5 133
+#define PIN_PE5__A5 PINMUX_PIN(PIN_PE5, 0)
+#define PIN_PE5__CTS3 PINMUX_PIN(PIN_PE5, 0)
+#define PIN_PE6 134
+#define PIN_PE6__A6 PINMUX_PIN(PIN_PE6, 0)
+#define PIN_PE6__TIOA3 PINMUX_PIN(PIN_PE6, 0)
+#define PIN_PE7 135
+#define PIN_PE7__A7 PINMUX_PIN(PIN_PE7, 0)
+#define PIN_PE7__TIOB3 PINMUX_PIN(PIN_PE7, 0)
+#define PIN_PE7__PWMFI1 PINMUX_PIN(PIN_PE7, 0)
+#define PIN_PE8 136
+#define PIN_PE8__A8 PINMUX_PIN(PIN_PE8, 0)
+#define PIN_PE8__TCLK3 PINMUX_PIN(PIN_PE8, 0)
+#define PIN_PE8__PWML3 PINMUX_PIN(PIN_PE8, 0)
+#define PIN_PE9 137
+#define PIN_PE9__A9 PINMUX_PIN(PIN_PE9, 0)
+#define PIN_PE9__TIOA2 PINMUX_PIN(PIN_PE9, 0)
+#define PIN_PE10 138
+#define PIN_PE10__A10 PINMUX_PIN(PIN_PE10, 0)
+#define PIN_PE10__TIOB2 PINMUX_PIN(PIN_PE10, 0)
+#define PIN_PE11 139
+#define PIN_PE11__A11 PINMUX_PIN(PIN_PE11, 0)
+#define PIN_PE11__TCLK2 PINMUX_PIN(PIN_PE11, 0)
+#define PIN_PE12 140
+#define PIN_PE12__A12 PINMUX_PIN(PIN_PE12, 0)
+#define PIN_PE12__TIOA1 PINMUX_PIN(PIN_PE12, 0)
+#define PIN_PE12__PWMH2 PINMUX_PIN(PIN_PE12, 0)
+#define PIN_PE13 141
+#define PIN_PE13__A13 PINMUX_PIN(PIN_PE13, 0)
+#define PIN_PE13__TIOB1 PINMUX_PIN(PIN_PE13, 0)
+#define PIN_PE13__PWML2 PINMUX_PIN(PIN_PE13, 0)
+#define PIN_PE14 142
+#define PIN_PE14__A14 PINMUX_PIN(PIN_PE14, 0)
+#define PIN_PE14__TCLK1 PINMUX_PIN(PIN_PE14, 0)
+#define PIN_PE14__PWMH3 PINMUX_PIN(PIN_PE14, 0)
+#define PIN_PE15 143
+#define PIN_PE15__A15 PINMUX_PIN(PIN_PE15, 0)
+#define PIN_PE15__SCK3 PINMUX_PIN(PIN_PE15, 0)
+#define PIN_PE15__TIOA0 PINMUX_PIN(PIN_PE15, 0)
+#define PIN_PE16 144
+#define PIN_PE16__A16 PINMUX_PIN(PIN_PE16, 0)
+#define PIN_PE16__RXD3 PINMUX_PIN(PIN_PE16, 0)
+#define PIN_PE16__TIOB0 PINMUX_PIN(PIN_PE16, 0)
+#define PIN_PE17 145
+#define PIN_PE17__A17 PINMUX_PIN(PIN_PE17, 0)
+#define PIN_PE17__TXD3 PINMUX_PIN(PIN_PE17, 0)
+#define PIN_PE17__TCLK0 PINMUX_PIN(PIN_PE17, 0)
+#define PIN_PE18 146
+#define PIN_PE18__A18 PINMUX_PIN(PIN_PE18, 0)
+#define PIN_PE18__TIOA5 PINMUX_PIN(PIN_PE18, 0)
+#define PIN_PE18__MCI1_CK PINMUX_PIN(PIN_PE18, 0)
+#define PIN_PE19 147
+#define PIN_PE19__A19 PINMUX_PIN(PIN_PE19, 0)
+#define PIN_PE19__TIOB5 PINMUX_PIN(PIN_PE19, 0)
+#define PIN_PE19__MCI1_CDA PINMUX_PIN(PIN_PE19, 0)
+#define PIN_PE20 148
+#define PIN_PE20__A20 PINMUX_PIN(PIN_PE20, 0)
+#define PIN_PE20__TCLK5 PINMUX_PIN(PIN_PE20, 0)
+#define PIN_PE20__MCI1_DA0 PINMUX_PIN(PIN_PE20, 0)
+#define PIN_PE21 149
+#define PIN_PE21__A23 PINMUX_PIN(PIN_PE21, 0)
+#define PIN_PE21__TIOA4 PINMUX_PIN(PIN_PE21, 0)
+#define PIN_PE21__MCI1_DA1 PINMUX_PIN(PIN_PE21, 0)
+#define PIN_PE22 150
+#define PIN_PE22__A24 PINMUX_PIN(PIN_PE22, 0)
+#define PIN_PE22__TIOB4 PINMUX_PIN(PIN_PE22, 0)
+#define PIN_PE22__MCI1_DA2 PINMUX_PIN(PIN_PE22, 0)
+#define PIN_PE23 151
+#define PIN_PE23__A25 PINMUX_PIN(PIN_PE23, 0)
+#define PIN_PE23__TCLK4 PINMUX_PIN(PIN_PE23, 0)
+#define PIN_PE23__MCI1_DA3 PINMUX_PIN(PIN_PE23, 0)
+#define PIN_PE24 152
+#define PIN_PE24__NCS0 PINMUX_PIN(PIN_PE24, 0)
+#define PIN_PE24__RTS3 PINMUX_PIN(PIN_PE24, 0)
+#define PIN_PE25 153
+#define PIN_PE25__NCS1 PINMUX_PIN(PIN_PE25, 0)
+#define PIN_PE25__SCK4 PINMUX_PIN(PIN_PE25, 0)
+#define PIN_PE25__IRQ PINMUX_PIN(PIN_PE25, 0)
+#define PIN_PE26 154
+#define PIN_PE26__NCS2 PINMUX_PIN(PIN_PE26, 0)
+#define PIN_PE26__RXD4 PINMUX_PIN(PIN_PE26, 0)
+#define PIN_PE26__A18 PINMUX_PIN(PIN_PE26, 0)
+#define PIN_PE27 155
+#define PIN_PE27__NWR1_NBS1 PINMUX_PIN(PIN_PE27, 0)
+#define PIN_PE27__TXD4 PINMUX_PIN(PIN_PE27, 0)
+#define PIN_PE28 156
+#define PIN_PE28__NWAIT PINMUX_PIN(PIN_PE28, 0)
+#define PIN_PE28__RTS4 PINMUX_PIN(PIN_PE28, 0)
+#define PIN_PE28__A19 PINMUX_PIN(PIN_PE28, 0)
+#define PIN_PE29 157
+#define PIN_PE29__DIBP PINMUX_PIN(PIN_PE29, 0)
+#define PIN_PE29__URXD0 PINMUX_PIN(PIN_PE29, 0)
+#define PIN_PE29__TWD1 PINMUX_PIN(PIN_PE29, 0)
+#define PIN_PE30 158
+#define PIN_PE30__DIBN PINMUX_PIN(PIN_PE30, 0)
+#define PIN_PE30__UTXD0 PINMUX_PIN(PIN_PE30, 0)
+#define PIN_PE30__TWCK1 PINMUX_PIN(PIN_PE30, 0)
+#define PIN_PE31 159
+#define PIN_PE31__ADTRG PINMUX_PIN(PIN_PE31, 0)
diff --git a/arch/arm/boot/dts/sama5d4_proto.dtsi b/arch/arm/boot/dts/sama5d4_proto.dtsi
new file mode 100644
index 0000000..dd66bf6
--- /dev/null
+++ b/arch/arm/boot/dts/sama5d4_proto.dtsi
@@ -0,0 +1,716 @@
+/*
+ * sama5d4.dtsi - Device Tree Include file for SAMA5D4 family SoC
+ *
+ * Copyright (C) 2014 Atmel,
+ * 2014 Nicolas Ferre <nicolas.ferre@atmel.com>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "skeleton.dtsi"
+#include <dt-bindings/clock/at91.h>
+#include <dt-bindings/dma/at91.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/gpio/gpio.h>
+#include "sama5d4_proto-pinfunc.h"
+
+/ {
+ model = "Atmel SAMA5D4 family SoC";
+ compatible = "atmel,sama5d4";
+ interrupt-parent = <&aic>;
+
+ aliases {
+ serial0 = &usart3;
+ gpio0 = &pioA;
+ gpio1 = &pioB;
+ gpio2 = &pioC;
+ gpio3 = &pioD;
+ gpio4 = &pioE;
+ tcb0 = &tcb0;
+ tcb1 = &tcb1;
+ i2c2 = &i2c2;
+ };
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu at 0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a5";
+ reg = <0>;
+ next-level-cache = <&L2>;
+ };
+ };
+
+ memory {
+ reg = <0x20000000 0x20000000>;
+ };
+
+ clocks {
+ slow_xtal: slow_xtal {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <0>;
+ };
+
+ main_xtal: main_xtal {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <0>;
+ };
+
+ adc_op_clk: adc_op_clk{
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <1000000>;
+ };
+ };
+
+ ahb {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ L2: cache-controller at 00a00000 {
+ compatible = "arm,pl310-cache";
+ reg = <0x00a00000 0x1000>;
+ interrupts = <67 IRQ_TYPE_LEVEL_HIGH 4>;
+ cache-unified;
+ cache-level = <2>;
+ };
+
+ apb {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ dma1: dma-controller at f0004000 {
+ compatible = "atmel,sama5d4-dma";
+ reg = <0xf0004000 0x200>;
+ interrupts = <50 IRQ_TYPE_LEVEL_HIGH 0>;
+ #dma-cells = <1>;
+ clocks = <&dma1_clk>;
+ clock-names = "dma_clk";
+ };
+
+ ramc0: ramc at f0010000 {
+ compatible = "atmel,sama5d3-ddramc";
+ reg = <0xf0010000 0x200>;
+ clocks = <&ddrck>, <&mpddr_clk>;
+ clock-names = "ddrck", "mpddr";
+ };
+
+ dma0: dma-controller at f0014000 {
+ compatible = "atmel,sama5d4-dma";
+ reg = <0xf0014000 0x200>;
+ interrupts = <8 IRQ_TYPE_LEVEL_HIGH 0>;
+ #dma-cells = <1>;
+ clocks = <&dma0_clk>;
+ clock-names = "dma_clk";
+ };
+
+ pmc: pmc at f0018000 {
+ compatible = "atmel,sama5d3-pmc";
+ reg = <0xf0018000 0x120>;
+ interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
+ interrupt-controller;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+
+ main_rc_osc: main_rc_osc {
+ compatible = "atmel,at91sam9x5-clk-main-rc-osc";
+ #clock-cells = <0>;
+ interrupt-parent = <&pmc>;
+ interrupts = <AT91_PMC_MOSCRCS>;
+ clock-frequency = <12000000>;
+ clock-accuracy = <100000000>;
+ };
+
+ main_osc: main_osc {
+ compatible = "atmel,at91rm9200-clk-main-osc";
+ #clock-cells = <0>;
+ interrupt-parent = <&pmc>;
+ interrupts = <AT91_PMC_MOSCS>;
+ clocks = <&main_xtal>;
+ };
+
+ main: mainck {
+ compatible = "atmel,at91sam9x5-clk-main";
+ #clock-cells = <0>;
+ interrupt-parent = <&pmc>;
+ interrupts = <AT91_PMC_MOSCSELS>;
+ clocks = <&main_rc_osc &main_osc>;
+ };
+
+ plla: pllack {
+ compatible = "atmel,sama5d3-clk-pll";
+ #clock-cells = <0>;
+ interrupt-parent = <&pmc>;
+ interrupts = <AT91_PMC_LOCKA>;
+ clocks = <&main>;
+ reg = <0>;
+ atmel,clk-input-range = <12000000 12000000>;
+ #atmel,pll-clk-output-range-cells = <4>;
+ atmel,pll-clk-output-ranges = <600000000 1200000000 0 0>;
+ };
+
+ plladiv: plladivck {
+ compatible = "atmel,at91sam9x5-clk-plldiv";
+ #clock-cells = <0>;
+ clocks = <&plla>;
+ };
+
+ utmi: utmick {
+ compatible = "atmel,at91sam9x5-clk-utmi";
+ #clock-cells = <0>;
+ interrupt-parent = <&pmc>;
+ interrupts = <AT91_PMC_LOCKU>;
+ clocks = <&main>;
+ };
+
+ mck: masterck {
+ compatible = "atmel,at91sam9x5-clk-master";
+ #clock-cells = <0>;
+ interrupt-parent = <&pmc>;
+ interrupts = <AT91_PMC_MCKRDY>;
+ clocks = <&clk32k>, <&main>, <&plladiv>, <&utmi>;
+ atmel,clk-output-range = <125000000 177000000>;
+ atmel,clk-divisors = <1 2 4 3>;
+ };
+
+ h32ck: h32mxck {
+ #clock-cells = <0>;
+ compatible = "atmel,sama5d4-clk-h32mx";
+ clocks = <&mck>;
+ };
+
+ prog: progck {
+ compatible = "atmel,at91sam9x5-clk-programmable";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupt-parent = <&pmc>;
+ clocks = <&clk32k>, <&main>, <&plladiv>, <&utmi>, <&mck>;
+
+ prog0: prog0 {
+ #clock-cells = <0>;
+ reg = <0>;
+ interrupts = <AT91_PMC_PCKRDY(0)>;
+ };
+
+ prog1: prog1 {
+ #clock-cells = <0>;
+ reg = <1>;
+ interrupts = <AT91_PMC_PCKRDY(1)>;
+ };
+
+ prog2: prog2 {
+ #clock-cells = <0>;
+ reg = <2>;
+ interrupts = <AT91_PMC_PCKRDY(2)>;
+ };
+ };
+
+ smd: smdclk {
+ compatible = "atmel,at91sam9x5-clk-smd";
+ #clock-cells = <0>;
+ clocks = <&plladiv>, <&utmi>;
+ };
+
+ systemck {
+ compatible = "atmel,at91rm9200-clk-system";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ddrck: ddrck {
+ #clock-cells = <0>;
+ reg = <2>;
+ clocks = <&mck>;
+ };
+
+ lcdck: lcdck {
+ #clock-cells = <0>;
+ reg = <4>;
+ clocks = <&smd>;
+ };
+
+ smdck: smdck {
+ #clock-cells = <0>;
+ reg = <4>;
+ clocks = <&smd>;
+ };
+
+ pck0: pck0 {
+ #clock-cells = <0>;
+ reg = <8>;
+ clocks = <&prog0>;
+ };
+
+ pck1: pck1 {
+ #clock-cells = <0>;
+ reg = <9>;
+ clocks = <&prog1>;
+ };
+
+ pck2: pck2 {
+ #clock-cells = <0>;
+ reg = <10>;
+ clocks = <&prog2>;
+ };
+ };
+
+ periph32ck {
+ compatible = "atmel,at91sam9x5-clk-peripheral";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&h32ck>;
+
+ pioD_clk: pioD_clk {
+ #clock-cells = <0>;
+ reg = <5>;
+ };
+
+ usart0_clk: usart0_clk {
+ #clock-cells = <0>;
+ reg = <6>;
+ };
+
+ usart1_clk: usart1_clk {
+ #clock-cells = <0>;
+ reg = <7>;
+ };
+
+ icm_clk: icm_clk {
+ #clock-cells = <0>;
+ reg = <9>;
+ };
+
+ aes_clk: aes_clk {
+ #clock-cells = <0>;
+ reg = <12>;
+ };
+
+ tdes_clk: tdes_clk {
+ #clock-cells = <0>;
+ reg = <14>;
+ };
+
+ sha_clk: sha_clk {
+ #clock-cells = <0>;
+ reg = <15>;
+ };
+
+ matrix1_clk: matrix1_clk {
+ #clock-cells = <0>;
+ reg = <17>;
+ };
+
+ hsmc_clk: hsmc_clk {
+ #clock-cells = <0>;
+ reg = <22>;
+ };
+
+ pioA_clk: pioA_clk {
+ #clock-cells = <0>;
+ reg = <23>;
+ };
+
+ pioB_clk: pioB_clk {
+ #clock-cells = <0>;
+ reg = <24>;
+ };
+
+ pioC_clk: pioC_clk {
+ #clock-cells = <0>;
+ reg = <25>;
+ };
+
+ pioE_clk: pioE_clk {
+ #clock-cells = <0>;
+ reg = <26>;
+ };
+
+ usart3_clk: usart3_clk {
+ #clock-cells = <0>;
+ reg = <30>;
+ };
+
+ twi2_clk: twi2_clk {
+ #clock-cells = <0>;
+ reg = <34>;
+ };
+
+ mci0_clk: mci0_clk {
+ #clock-cells = <0>;
+ reg = <35>;
+ };
+
+ mci1_clk: mci1_clk {
+ #clock-cells = <0>;
+ reg = <36>;
+ };
+
+ tcb0_clk: tcb0_clk {
+ #clock-cells = <0>;
+ reg = <40>;
+ };
+
+ tcb1_clk: tcb1_clk {
+ #clock-cells = <0>;
+ reg = <41>;
+ };
+
+ tcb2_clk: tcb2_clk {
+ #clock-cells = <0>;
+ reg = <42>;
+ };
+
+ dbgu_clk: dbgu_clk {
+ #clock-cells = <0>;
+ reg = <45>;
+ };
+
+ uhphs_clk: uhphs_clk {
+ #clock-cells = <0>;
+ reg = <46>;
+ };
+
+ udphs_clk: udphs_clk {
+ #clock-cells = <0>;
+ reg = <47>;
+ };
+
+ trng_clk: trng_clk {
+ #clock-cells = <0>;
+ reg = <53>;
+ };
+
+ macb0_clk: macb0_clk {
+ #clock-cells = <0>;
+ reg = <54>;
+ };
+
+ fuse_clk: fuse_clk {
+ #clock-cells = <0>;
+ reg = <57>;
+ };
+
+ securam_clk: securam_clk {
+ #clock-cells = <0>;
+ reg = <59>;
+ };
+
+ smd_clk: smd_clk {
+ #clock-cells = <0>;
+ reg = <61>;
+ };
+
+ catb_clk: catb_clk {
+ #clock-cells = <0>;
+ reg = <63>;
+ };
+ };
+
+ periph64ck {
+ compatible = "atmel,at91sam9x5-clk-peripheral";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&mck>;
+
+ dma0_clk: dma0_clk {
+ #clock-cells = <0>;
+ reg = <8>;
+ };
+
+ cpkcc_clk: cpkcc_clk {
+ #clock-cells = <0>;
+ reg = <10>;
+ };
+
+ mpddr_clk: mpddr_clk {
+ #clock-cells = <0>;
+ reg = <16>;
+ };
+
+ matrix0_clk: matrix0_clk {
+ #clock-cells = <0>;
+ reg = <18>;
+ };
+
+ vdec_clk: vdec_clk {
+ #clock-cells = <0>;
+ reg = <19>;
+ };
+
+ dma1_clk: dma1_clk {
+ #clock-cells = <0>;
+ reg = <50>;
+ };
+ };
+ };
+
+ mmc0: mmc at f8000000 {
+ compatible = "atmel,hsmci";
+ reg = <0xf8000000 0x600>;
+ interrupts = <35 IRQ_TYPE_LEVEL_HIGH 0>;
+ dmas = <&dma1
+ (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)
+ | AT91_XDMAC_DT_PERID(0))>;
+ dma-names = "rxtx";
+ status = "disabled";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&mci0_clk>;
+ clock-names = "mci_clk";
+ };
+
+ tcb0: timer at f801c000 {
+ compatible = "atmel,at91sam9x5-tcb";
+ reg = <0xf801c000 0x100>;
+ interrupts = <40 IRQ_TYPE_LEVEL_HIGH 0>;
+ clocks = <&tcb0_clk>;
+ clock-names = "t0_clk";
+ };
+
+ macb0: ethernet at f8020000 {
+ compatible = "atmel,sama5d4-gem";
+ reg = <0xf8020000 0x100>;
+ interrupts = <54 IRQ_TYPE_LEVEL_HIGH 3>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_macb0_rmii>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&macb0_clk>, <&macb0_clk>;
+ clock-names = "hclk", "pclk";
+ status = "disabled";
+ };
+
+ i2c2: i2c at f8024000 {
+ compatible = "atmel,at91sam9x5-i2c";
+ reg = <0xf8024000 0x4000>;
+ interrupts = <34 IRQ_TYPE_LEVEL_HIGH 6>;
+ dmas = <&dma1
+ (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)
+ | AT91_XDMAC_DT_PERID(6))>,
+ <&dma1
+ (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)
+ | AT91_XDMAC_DT_PERID(7))>;
+ dma-names = "tx", "rx";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&twi2_clk>;
+ status = "disabled";
+ };
+
+ mmc1: mmc at fc000000 {
+ compatible = "atmel,hsmci";
+ reg = <0xfc000000 0x600>;
+ interrupts = <36 IRQ_TYPE_LEVEL_HIGH 0>;
+ dmas = <&dma1
+ (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)
+ | AT91_XDMAC_DT_PERID(1))>;
+ dma-names = "rxtx";
+ status = "disabled";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&mci1_clk>;
+ clock-names = "mci_clk";
+ };
+
+ usart3: serial at fc00c000 {
+ compatible = "atmel,at91sam9260-usart";
+ reg = <0xfc00c000 0x100>;
+ interrupts = <30 IRQ_TYPE_LEVEL_HIGH 5>;
+ dmas = <&dma1
+ (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)
+ | AT91_XDMAC_DT_PERID(18))>,
+ <&dma1
+ (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)
+ | AT91_XDMAC_DT_PERID(19))>;
+ dma-names = "tx", "rx";
+ clocks = <&usart3_clk>;
+ clock-names = "usart";
+ };
+
+ tcb1: timer at fc020000 {
+ compatible = "atmel,at91sam9x5-tcb";
+ reg = <0xfc020000 0x100>;
+ interrupts = <41 IRQ_TYPE_LEVEL_HIGH 0>;
+ clocks = <&tcb1_clk>;
+ clock-names = "t0_clk";
+ };
+
+ rstc at fc068600 {
+ compatible = "atmel,at91sam9g45-rstc";
+ reg = <0xfc068600 0x10>;
+ };
+
+ shdwc at fc068610 {
+ compatible = "atmel,at91sam9x5-shdwc";
+ reg = <0xfc068610 0x10>;
+ };
+
+ pit: timer at fc068630 {
+ compatible = "atmel,at91sam9260-pit";
+ reg = <0xfc068630 0x10>;
+ interrupts = <3 IRQ_TYPE_LEVEL_HIGH 5>;
+ clocks = <&h32ck>;
+ };
+
+ watchdog at fc068640 {
+ compatible = "atmel,at91sam9260-wdt";
+ reg = <0xfc068640 0x10>;
+ status = "disabled";
+ };
+
+ sckc at fc068650 {
+ compatible = "atmel,at91sam9x5-sckc";
+ reg = <0xfc068650 0x4>;
+
+ slow_rc_osc: slow_rc_osc {
+ compatible = "atmel,at91sam9x5-clk-slow-rc-osc";
+ #clock-cells = <0>;
+ clock-frequency = <32768>;
+ clock-accuracy = <250000000>;
+ atmel,startup-time-usec = <75>;
+ };
+
+ slow_osc: slow_osc {
+ compatible = "atmel,at91sam9x5-clk-slow-osc";
+ #clock-cells = <0>;
+ clocks = <&slow_xtal>;
+ atmel,startup-time-usec = <1200000>;
+ };
+
+ clk32k: slowck {
+ compatible = "atmel,at91sam9x5-clk-slow";
+ #clock-cells = <0>;
+ clocks = <&slow_rc_osc &slow_osc>;
+ };
+ };
+
+ rtc at fc0686b0 {
+ compatible = "atmel,at91rm9200-rtc";
+ reg = <0xfc0686b0 0x30>;
+ interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
+ };
+
+ dbgu: serial at fc069000 {
+ compatible = "atmel,at91sam9260-usart";
+ reg = <0xfc069000 0x200>;
+ interrupts = <2 IRQ_TYPE_LEVEL_HIGH 7>;
+ clocks = <&dbgu_clk>;
+ clock-names = "usart";
+ status = "disabled";
+ };
+
+ pio_reg: syscon at fc06a000 {
+ compatible = "atmel,sama5d4-pio_reg", "syscon";
+ reg = <0xfc06a000 0x5000>;
+ };
+
+ pinctrl at fc06a000 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "atmel,sama5d4-pinctrl", "simple-bus";
+ atmel,pio_reg = <&pio_reg 0x0>;
+ };
+
+ pioA: gpio at fc06a000 {
+ compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
+ interrupts = <23 IRQ_TYPE_LEVEL_HIGH 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&pioA_clk>;
+ };
+
+ pioB: gpio at fc06b000 {
+ compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
+ interrupts = <24 IRQ_TYPE_LEVEL_HIGH 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&pioB_clk>;
+ };
+
+ pioC: gpio at fc06c000 {
+ compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
+ interrupts = <25 IRQ_TYPE_LEVEL_HIGH 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&pioC_clk>;
+ };
+
+ pioD: gpio at fc06d000 {
+ compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
+ interrupts = <5 IRQ_TYPE_LEVEL_HIGH 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&pioD_clk>;
+ };
+
+ pioE: gpio at fc06e000 {
+ compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
+ interrupts = <26 IRQ_TYPE_LEVEL_HIGH 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&pioE_clk>;
+ };
+
+ aic: interrupt-controller at fc06e000 {
+ #interrupt-cells = <3>;
+ compatible = "atmel,sama5d4-aic";
+ interrupt-controller;
+ reg = <0xfc06e000 0x200>;
+ atmel,external-irqs = <56>;
+ };
+ };
+ };
+};
--
2.2.0
^ permalink raw reply related [flat|nested] 14+ messages in thread
* Re: [RFC PATCH 0/4] pinctrl: prototyping a per pin mux approach
2015-04-02 9:38 ` Ludovic Desroches
@ 2015-04-14 8:40 ` Sascha Hauer
-1 siblings, 0 replies; 14+ messages in thread
From: Sascha Hauer @ 2015-04-14 8:40 UTC (permalink / raw)
To: Ludovic Desroches
Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
linux-gpio-u79uwXL29TY76Z2rM5mHXA,
devicetree-u79uwXL29TY76Z2rM5mHXA,
linus.walleij-QSEj5FYQhm4dnm+yROfE0A,
laurent.pinchart-ryLnwIuWjnjg/C1BVhZhaw,
swarren-3lzwWm7+Weoh9ZMKESR00Q, tony-4v6yS6AI5VpBDgjK7y7TUQ,
nicolas.ferre-AIFe0yeh4nAAvxtiuMwx3w
On Thu, Apr 02, 2015 at 11:38:12AM +0200, Ludovic Desroches wrote:
>
> Hi,
>
> Here is an implementation of what I need for the future at91 pin controller.
> The pinctrl driver is a draft made for a sama5d4 in order to test it.
> It is not clean and many things are missing but I think it will be easier to
> debate on code.
>
> From the discussion with Sascha, it seems that we agree that current pinctrl
> doesn't fit the needs of controllers who have per pin muxing because the
> concepts of groups is not real.
> In my opinion, even if groups are not real it is quite convenient to use them
> at least for debug sysfs.
>
> The new at91 pin controller is close to Mediatek one. I am not totally happy
> with their solution since a group is describing a pin. It is probably the
> easiest way to do it but it doesn't fit my needs. I have two constraints:
>
> - I want something readable in sysfs as:
>
> device fc000000.mmc
> state default
> type MUX_GROUP (2)
> controlling device ahb:apb:pinctrl@fc06a000
> group mci1_0_4bit
> function C
>
> device fc000000.mmc
> state default
> type CONFIGS_PIN (3)
> controlling device ahb:apb:pinctrl@fc06a000
> pin PE19
> config 00010003
>
> I don't want to have a group named as a pin.
>
> - I want to perform some verifications on user choices. A concept of ioset is
> introduced. An ioset is a set of pins dedicated to a device. A device can have
> several iosets. For example we can have i2c0 ioset1 with pins PA0 and PA1 and
> i2c0 ioset2 with pins PE10 and PE11. The controller has no knowledge about
> iosets. It means I could take the i2c data signal from ioset1 and the i2c
> clock signal from ioset2 BUT validation has been done only per ioset. For
> devices such as i2c it should not be a problem but it could be for other ones
> such as mci, isi, etc.
>
> - I don't want big tables describing pins in my driver. It represents a huge
> amount of code mainly useless in the case of a multiplatform image.
This is needed due to some misdesign in the pinctrl core that's just,
sorry, braindamaged. The pinctrl core forces you to parse a device node
(which your driver perfectly understands) into a struct pinctrl_map.
This struct contains a struct pinctrl_map_mux which contains a group and
a function as strings. With the help of the driver struct pinctrl_map is
converted to struct pinctrl_setting which basically contains the same
information, but with a struct pinctrl_setting_mux which contains a
group and a function as integers. Instead of passing this data back to
the driver to act upon the structs are shred into pieces and passed to
the driver as individual variables.
So to recap the pinctrl core forces you to parse your data from the
device node into a format not native to the driver, then uses the
drivers help to convert this data in yet another format which it then
passes back to the driver in little pieces. Note that the pinctrl core
doesn't even use all this data except for requesting pins and for
generating debugfs entries. These debugfs entries even often contain
useless information because neither struct pinctrl_map nor struct
pinctrl_setting are suitable for storing information for per-pin
controllers. Most drivers only put some information in there to find the
informations back the device node already contained.
A sane approach would just let the driver parse the data from a device
node into a cookie which is then passed back to the driver to be
activated. The driver would then be free to store whatever information
it needs in this cookie. The driver just request the necessary pins
itself from the pinctrl core instead of letting the core doing it.
I know this is not the answer you were looking for, but the pinctrl core
in my eyes is a big midlayer mistake and I'm not very fond of stretching
this concept further to be able to live with it for another round.
Sascha
--
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^ permalink raw reply [flat|nested] 14+ messages in thread
* [RFC PATCH 0/4] pinctrl: prototyping a per pin mux approach
@ 2015-04-14 8:40 ` Sascha Hauer
0 siblings, 0 replies; 14+ messages in thread
From: Sascha Hauer @ 2015-04-14 8:40 UTC (permalink / raw)
To: linux-arm-kernel
On Thu, Apr 02, 2015 at 11:38:12AM +0200, Ludovic Desroches wrote:
>
> Hi,
>
> Here is an implementation of what I need for the future at91 pin controller.
> The pinctrl driver is a draft made for a sama5d4 in order to test it.
> It is not clean and many things are missing but I think it will be easier to
> debate on code.
>
> From the discussion with Sascha, it seems that we agree that current pinctrl
> doesn't fit the needs of controllers who have per pin muxing because the
> concepts of groups is not real.
> In my opinion, even if groups are not real it is quite convenient to use them
> at least for debug sysfs.
>
> The new at91 pin controller is close to Mediatek one. I am not totally happy
> with their solution since a group is describing a pin. It is probably the
> easiest way to do it but it doesn't fit my needs. I have two constraints:
>
> - I want something readable in sysfs as:
>
> device fc000000.mmc
> state default
> type MUX_GROUP (2)
> controlling device ahb:apb:pinctrl at fc06a000
> group mci1_0_4bit
> function C
>
> device fc000000.mmc
> state default
> type CONFIGS_PIN (3)
> controlling device ahb:apb:pinctrl at fc06a000
> pin PE19
> config 00010003
>
> I don't want to have a group named as a pin.
>
> - I want to perform some verifications on user choices. A concept of ioset is
> introduced. An ioset is a set of pins dedicated to a device. A device can have
> several iosets. For example we can have i2c0 ioset1 with pins PA0 and PA1 and
> i2c0 ioset2 with pins PE10 and PE11. The controller has no knowledge about
> iosets. It means I could take the i2c data signal from ioset1 and the i2c
> clock signal from ioset2 BUT validation has been done only per ioset. For
> devices such as i2c it should not be a problem but it could be for other ones
> such as mci, isi, etc.
>
> - I don't want big tables describing pins in my driver. It represents a huge
> amount of code mainly useless in the case of a multiplatform image.
This is needed due to some misdesign in the pinctrl core that's just,
sorry, braindamaged. The pinctrl core forces you to parse a device node
(which your driver perfectly understands) into a struct pinctrl_map.
This struct contains a struct pinctrl_map_mux which contains a group and
a function as strings. With the help of the driver struct pinctrl_map is
converted to struct pinctrl_setting which basically contains the same
information, but with a struct pinctrl_setting_mux which contains a
group and a function as integers. Instead of passing this data back to
the driver to act upon the structs are shred into pieces and passed to
the driver as individual variables.
So to recap the pinctrl core forces you to parse your data from the
device node into a format not native to the driver, then uses the
drivers help to convert this data in yet another format which it then
passes back to the driver in little pieces. Note that the pinctrl core
doesn't even use all this data except for requesting pins and for
generating debugfs entries. These debugfs entries even often contain
useless information because neither struct pinctrl_map nor struct
pinctrl_setting are suitable for storing information for per-pin
controllers. Most drivers only put some information in there to find the
informations back the device node already contained.
A sane approach would just let the driver parse the data from a device
node into a cookie which is then passed back to the driver to be
activated. The driver would then be free to store whatever information
it needs in this cookie. The driver just request the necessary pins
itself from the pinctrl core instead of letting the core doing it.
I know this is not the answer you were looking for, but the pinctrl core
in my eyes is a big midlayer mistake and I'm not very fond of stretching
this concept further to be able to live with it for another round.
Sascha
--
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Industrial Linux Solutions | http://www.pengutronix.de/ |
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^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [RFC PATCH 0/4] pinctrl: prototyping a per pin mux approach
2015-04-14 8:40 ` Sascha Hauer
@ 2015-04-16 12:26 ` Ludovic Desroches
-1 siblings, 0 replies; 14+ messages in thread
From: Ludovic Desroches @ 2015-04-16 12:26 UTC (permalink / raw)
To: Sascha Hauer
Cc: Ludovic Desroches, linux-arm-kernel, linux-gpio, devicetree,
linus.walleij, laurent.pinchart, swarren, tony, nicolas.ferre
Hello Sascha,
On Tue, Apr 14, 2015 at 10:40:05AM +0200, Sascha Hauer wrote:
> On Thu, Apr 02, 2015 at 11:38:12AM +0200, Ludovic Desroches wrote:
> >
> > Hi,
> >
> > Here is an implementation of what I need for the future at91 pin controller.
> > The pinctrl driver is a draft made for a sama5d4 in order to test it.
> > It is not clean and many things are missing but I think it will be easier to
> > debate on code.
> >
> > From the discussion with Sascha, it seems that we agree that current pinctrl
> > doesn't fit the needs of controllers who have per pin muxing because the
> > concepts of groups is not real.
> > In my opinion, even if groups are not real it is quite convenient to use them
> > at least for debug sysfs.
> >
> > The new at91 pin controller is close to Mediatek one. I am not totally happy
> > with their solution since a group is describing a pin. It is probably the
> > easiest way to do it but it doesn't fit my needs. I have two constraints:
> >
> > - I want something readable in sysfs as:
> >
> > device fc000000.mmc
> > state default
> > type MUX_GROUP (2)
> > controlling device ahb:apb:pinctrl@fc06a000
> > group mci1_0_4bit
> > function C
> >
> > device fc000000.mmc
> > state default
> > type CONFIGS_PIN (3)
> > controlling device ahb:apb:pinctrl@fc06a000
> > pin PE19
> > config 00010003
> >
> > I don't want to have a group named as a pin.
> >
> > - I want to perform some verifications on user choices. A concept of ioset is
> > introduced. An ioset is a set of pins dedicated to a device. A device can have
> > several iosets. For example we can have i2c0 ioset1 with pins PA0 and PA1 and
> > i2c0 ioset2 with pins PE10 and PE11. The controller has no knowledge about
> > iosets. It means I could take the i2c data signal from ioset1 and the i2c
> > clock signal from ioset2 BUT validation has been done only per ioset. For
> > devices such as i2c it should not be a problem but it could be for other ones
> > such as mci, isi, etc.
> >
> > - I don't want big tables describing pins in my driver. It represents a huge
> > amount of code mainly useless in the case of a multiplatform image.
>
> This is needed due to some misdesign in the pinctrl core that's just,
> sorry, braindamaged. The pinctrl core forces you to parse a device node
> (which your driver perfectly understands) into a struct pinctrl_map.
> This struct contains a struct pinctrl_map_mux which contains a group and
> a function as strings. With the help of the driver struct pinctrl_map is
> converted to struct pinctrl_setting which basically contains the same
> information, but with a struct pinctrl_setting_mux which contains a
> group and a function as integers. Instead of passing this data back to
> the driver to act upon the structs are shred into pieces and passed to
> the driver as individual variables.
>
> So to recap the pinctrl core forces you to parse your data from the
> device node into a format not native to the driver, then uses the
> drivers help to convert this data in yet another format which it then
> passes back to the driver in little pieces. Note that the pinctrl core
> doesn't even use all this data except for requesting pins and for
> generating debugfs entries. These debugfs entries even often contain
> useless information because neither struct pinctrl_map nor struct
> pinctrl_setting are suitable for storing information for per-pin
> controllers. Most drivers only put some information in there to find the
> informations back the device node already contained.
>
> A sane approach would just let the driver parse the data from a device
> node into a cookie which is then passed back to the driver to be
> activated. The driver would then be free to store whatever information
> it needs in this cookie. The driver just request the necessary pins
> itself from the pinctrl core instead of letting the core doing it.
>
> I know this is not the answer you were looking for, but the pinctrl core
> in my eyes is a big midlayer mistake and I'm not very fond of stretching
> this concept further to be able to live with it for another round.
>
For sure it was not the kind of answer I was looking for :) I understand
your point of view.
I won't discuss about the design of the pinctrl. I don't have enough
knowledge about other controllers and I have never worked on a midlayer.
My concern is the actual pinctrl doesn't fit my needs and add some strong
constraints. I don't have the time (and probably not the skill) to
re-design pinctrl without introducing breakage for existing users. My
goal is to try to find some ways to make it more flexible.
Linus, what do you think about all this? Are the changes proposed
acceptable?
Regards
Ludovic
^ permalink raw reply [flat|nested] 14+ messages in thread
* [RFC PATCH 0/4] pinctrl: prototyping a per pin mux approach
@ 2015-04-16 12:26 ` Ludovic Desroches
0 siblings, 0 replies; 14+ messages in thread
From: Ludovic Desroches @ 2015-04-16 12:26 UTC (permalink / raw)
To: linux-arm-kernel
Hello Sascha,
On Tue, Apr 14, 2015 at 10:40:05AM +0200, Sascha Hauer wrote:
> On Thu, Apr 02, 2015 at 11:38:12AM +0200, Ludovic Desroches wrote:
> >
> > Hi,
> >
> > Here is an implementation of what I need for the future at91 pin controller.
> > The pinctrl driver is a draft made for a sama5d4 in order to test it.
> > It is not clean and many things are missing but I think it will be easier to
> > debate on code.
> >
> > From the discussion with Sascha, it seems that we agree that current pinctrl
> > doesn't fit the needs of controllers who have per pin muxing because the
> > concepts of groups is not real.
> > In my opinion, even if groups are not real it is quite convenient to use them
> > at least for debug sysfs.
> >
> > The new at91 pin controller is close to Mediatek one. I am not totally happy
> > with their solution since a group is describing a pin. It is probably the
> > easiest way to do it but it doesn't fit my needs. I have two constraints:
> >
> > - I want something readable in sysfs as:
> >
> > device fc000000.mmc
> > state default
> > type MUX_GROUP (2)
> > controlling device ahb:apb:pinctrl at fc06a000
> > group mci1_0_4bit
> > function C
> >
> > device fc000000.mmc
> > state default
> > type CONFIGS_PIN (3)
> > controlling device ahb:apb:pinctrl at fc06a000
> > pin PE19
> > config 00010003
> >
> > I don't want to have a group named as a pin.
> >
> > - I want to perform some verifications on user choices. A concept of ioset is
> > introduced. An ioset is a set of pins dedicated to a device. A device can have
> > several iosets. For example we can have i2c0 ioset1 with pins PA0 and PA1 and
> > i2c0 ioset2 with pins PE10 and PE11. The controller has no knowledge about
> > iosets. It means I could take the i2c data signal from ioset1 and the i2c
> > clock signal from ioset2 BUT validation has been done only per ioset. For
> > devices such as i2c it should not be a problem but it could be for other ones
> > such as mci, isi, etc.
> >
> > - I don't want big tables describing pins in my driver. It represents a huge
> > amount of code mainly useless in the case of a multiplatform image.
>
> This is needed due to some misdesign in the pinctrl core that's just,
> sorry, braindamaged. The pinctrl core forces you to parse a device node
> (which your driver perfectly understands) into a struct pinctrl_map.
> This struct contains a struct pinctrl_map_mux which contains a group and
> a function as strings. With the help of the driver struct pinctrl_map is
> converted to struct pinctrl_setting which basically contains the same
> information, but with a struct pinctrl_setting_mux which contains a
> group and a function as integers. Instead of passing this data back to
> the driver to act upon the structs are shred into pieces and passed to
> the driver as individual variables.
>
> So to recap the pinctrl core forces you to parse your data from the
> device node into a format not native to the driver, then uses the
> drivers help to convert this data in yet another format which it then
> passes back to the driver in little pieces. Note that the pinctrl core
> doesn't even use all this data except for requesting pins and for
> generating debugfs entries. These debugfs entries even often contain
> useless information because neither struct pinctrl_map nor struct
> pinctrl_setting are suitable for storing information for per-pin
> controllers. Most drivers only put some information in there to find the
> informations back the device node already contained.
>
> A sane approach would just let the driver parse the data from a device
> node into a cookie which is then passed back to the driver to be
> activated. The driver would then be free to store whatever information
> it needs in this cookie. The driver just request the necessary pins
> itself from the pinctrl core instead of letting the core doing it.
>
> I know this is not the answer you were looking for, but the pinctrl core
> in my eyes is a big midlayer mistake and I'm not very fond of stretching
> this concept further to be able to live with it for another round.
>
For sure it was not the kind of answer I was looking for :) I understand
your point of view.
I won't discuss about the design of the pinctrl. I don't have enough
knowledge about other controllers and I have never worked on a midlayer.
My concern is the actual pinctrl doesn't fit my needs and add some strong
constraints. I don't have the time (and probably not the skill) to
re-design pinctrl without introducing breakage for existing users. My
goal is to try to find some ways to make it more flexible.
Linus, what do you think about all this? Are the changes proposed
acceptable?
Regards
Ludovic
^ permalink raw reply [flat|nested] 14+ messages in thread
end of thread, other threads:[~2015-04-16 12:28 UTC | newest]
Thread overview: 14+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2015-04-02 9:38 [RFC PATCH 0/4] pinctrl: prototyping a per pin mux approach Ludovic Desroches
2015-04-02 9:38 ` Ludovic Desroches
2015-04-02 9:38 ` [RFC PATCH 1/4] pinctrl: change function behavior for per pin muxing controllers Ludovic Desroches
2015-04-02 9:38 ` Ludovic Desroches
2015-04-02 9:38 ` [RFC PATCH 3/4] pinctrl: rough draft for a future controller Ludovic Desroches
2015-04-02 9:38 ` Ludovic Desroches
2015-04-02 9:38 ` [RFC PATCH 4/4] ARM: at91/dt: proto dt Ludovic Desroches
2015-04-02 9:38 ` Ludovic Desroches
[not found] ` <1427967496-22533-1-git-send-email-ludovic.desroches-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org>
2015-04-02 9:38 ` [RFC PATCH 2/4] pinctrl: introduce complex pin description Ludovic Desroches
2015-04-02 9:38 ` Ludovic Desroches
2015-04-14 8:40 ` [RFC PATCH 0/4] pinctrl: prototyping a per pin mux approach Sascha Hauer
2015-04-14 8:40 ` Sascha Hauer
2015-04-16 12:26 ` Ludovic Desroches
2015-04-16 12:26 ` Ludovic Desroches
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