* [PATCH v4 0/8] dt-bindings: memory-controllers: ti,gpmc: Convert to yaml
@ 2021-09-14 12:26 Roger Quadros
2021-09-14 12:26 ` [PATCH v4 1/8] ARM: dts: omap: Fixup GPMC child nodes Roger Quadros
` (7 more replies)
0 siblings, 8 replies; 21+ messages in thread
From: Roger Quadros @ 2021-09-14 12:26 UTC (permalink / raw)
To: tony
Cc: robh+dt, grygorii.strashko, nm, lokeshvutla, nsekhar,
krzysztof.kozlowski, miquel.raynal, devicetree, linux-mtd,
linux-omap, linux-kernel, Roger Quadros
Hi,
This series converts ti,gpmc memory controller and ti,gpmc-nand and
ti,gpmc-onenand MTD controller bindings to yaml.
cheers,
-roger
Changelog:
v4
- reference partition.yaml in ti,gpmc-nand.yaml and ti,gpmc-onenenc.yaml
- use address-cells/size-cells: true instead of absolute size.
v3:
- fix indentation
- split GPMC child timings/settings into ti,gpmc-child.yaml
This allows us to refer to it at 3 places and avoid use of
'additionalProperties: true' at 2 places.
- specify defaults where applicable
- reordered patches
- added patch for making "gpmc,device-width" optional with defaults.
- address all review comments.
v2:
- Fix all errors in dtbs_check and dt_bindings_check
- remove references to gpmc-omap.txt
- Convert ti,gpmc-nand and ti,gpmc-onenand bindings to yaml as well
Roger Quadros (8):
ARM: dts: omap: Fixup GPMC child nodes
dt-bindings: mtd: Remove gpmc-nor.txt
dt-bindings: net: Remove gpmc-eth.txt
dt-bindings: memory-controllers: Introduce ti,gpmc-child
dt-bindings: mtd: ti,gpmc-nand: Convert to yaml
dt-bindings: mtd: ti,gpmc-onenand: Convert to yaml
dt-bindings: memory-controllers: ti,gpmc: Convert to yaml
memory: gpmc-omap: "gpmc,device-width" DT property is optional
.../bindings/memory-controllers/omap-gpmc.txt | 157 -----------
.../memory-controllers/ti,gpmc-child.yaml | 245 ++++++++++++++++++
.../bindings/memory-controllers/ti,gpmc.yaml | 172 ++++++++++++
.../devicetree/bindings/mtd/gpmc-nand.txt | 147 -----------
.../devicetree/bindings/mtd/gpmc-nor.txt | 98 -------
.../devicetree/bindings/mtd/gpmc-onenand.txt | 48 ----
.../devicetree/bindings/mtd/ti,gpmc-nand.yaml | 121 +++++++++
.../bindings/mtd/ti,gpmc-onenand.yaml | 81 ++++++
.../devicetree/bindings/net/gpmc-eth.txt | 97 -------
.../boot/dts/logicpd-som-lv-baseboard.dtsi | 2 +-
.../boot/dts/logicpd-torpedo-37xx-devkit.dts | 2 +-
.../boot/dts/logicpd-torpedo-baseboard.dtsi | 2 +-
arch/arm/boot/dts/omap-gpmc-smsc911x.dtsi | 62 +++--
arch/arm/boot/dts/omap-gpmc-smsc9221.dtsi | 59 ++---
arch/arm/boot/dts/omap-zoom-common.dtsi | 16 +-
arch/arm/boot/dts/omap2430-sdp.dts | 6 +-
arch/arm/boot/dts/omap3-cm-t3x30.dtsi | 6 +-
.../arm/boot/dts/omap3-devkit8000-common.dtsi | 4 +-
arch/arm/boot/dts/omap3-evm-37xx.dts | 1 +
arch/arm/boot/dts/omap3-evm-common.dtsi | 9 -
.../boot/dts/omap3-evm-processor-common.dtsi | 5 +-
arch/arm/boot/dts/omap3-evm.dts | 1 +
arch/arm/boot/dts/omap3-igep0020-common.dtsi | 5 +-
arch/arm/boot/dts/omap3-ldp.dts | 5 +-
arch/arm/boot/dts/omap3-n900.dts | 2 +-
.../dts/omap3-overo-chestnut43-common.dtsi | 6 +-
.../arm/boot/dts/omap3-overo-tobi-common.dtsi | 6 +-
.../boot/dts/omap3-overo-tobiduo-common.dtsi | 8 +-
arch/arm/boot/dts/omap3-sb-t35.dtsi | 4 +-
arch/arm/boot/dts/omap4-duovero-parlor.dts | 6 +-
drivers/memory/omap-gpmc.c | 41 +--
31 files changed, 750 insertions(+), 674 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
create mode 100644 Documentation/devicetree/bindings/memory-controllers/ti,gpmc-child.yaml
create mode 100644 Documentation/devicetree/bindings/memory-controllers/ti,gpmc.yaml
delete mode 100644 Documentation/devicetree/bindings/mtd/gpmc-nand.txt
delete mode 100644 Documentation/devicetree/bindings/mtd/gpmc-nor.txt
delete mode 100644 Documentation/devicetree/bindings/mtd/gpmc-onenand.txt
create mode 100644 Documentation/devicetree/bindings/mtd/ti,gpmc-nand.yaml
create mode 100644 Documentation/devicetree/bindings/mtd/ti,gpmc-onenand.yaml
delete mode 100644 Documentation/devicetree/bindings/net/gpmc-eth.txt
--
2.17.1
^ permalink raw reply [flat|nested] 21+ messages in thread
* [PATCH v4 1/8] ARM: dts: omap: Fixup GPMC child nodes
2021-09-14 12:26 [PATCH v4 0/8] dt-bindings: memory-controllers: ti,gpmc: Convert to yaml Roger Quadros
@ 2021-09-14 12:26 ` Roger Quadros
2021-09-15 6:53 ` Krzysztof Kozlowski
2021-09-14 12:26 ` [PATCH v4 2/8] dt-bindings: mtd: Remove gpmc-nor.txt Roger Quadros
` (6 subsequent siblings)
7 siblings, 1 reply; 21+ messages in thread
From: Roger Quadros @ 2021-09-14 12:26 UTC (permalink / raw)
To: tony
Cc: robh+dt, grygorii.strashko, nm, lokeshvutla, nsekhar,
krzysztof.kozlowski, miquel.raynal, devicetree, linux-mtd,
linux-omap, linux-kernel, Roger Quadros
Fixes up the GPMC child nodes to prevent dtbs_check errors
after device tree binding conversion to yaml.
- Use reg address as node name
- gpmc,cycle2cycle-samecsen and gpmc,cycle2cycle-diffcsen are
boolean properties.
Signed-off-by: Roger Quadros <rogerq@kernel.org>
---
.../boot/dts/logicpd-som-lv-baseboard.dtsi | 2 +-
.../boot/dts/logicpd-torpedo-37xx-devkit.dts | 2 +-
.../boot/dts/logicpd-torpedo-baseboard.dtsi | 2 +-
arch/arm/boot/dts/omap-gpmc-smsc911x.dtsi | 62 +++++++++----------
arch/arm/boot/dts/omap-gpmc-smsc9221.dtsi | 59 +++++++++---------
arch/arm/boot/dts/omap-zoom-common.dtsi | 16 ++---
arch/arm/boot/dts/omap2430-sdp.dts | 6 +-
arch/arm/boot/dts/omap3-cm-t3x30.dtsi | 6 +-
.../arm/boot/dts/omap3-devkit8000-common.dtsi | 4 +-
arch/arm/boot/dts/omap3-evm-37xx.dts | 1 +
arch/arm/boot/dts/omap3-evm-common.dtsi | 9 ---
.../boot/dts/omap3-evm-processor-common.dtsi | 5 +-
arch/arm/boot/dts/omap3-evm.dts | 1 +
arch/arm/boot/dts/omap3-igep0020-common.dtsi | 5 +-
arch/arm/boot/dts/omap3-ldp.dts | 5 +-
arch/arm/boot/dts/omap3-n900.dts | 2 +-
.../dts/omap3-overo-chestnut43-common.dtsi | 6 +-
.../arm/boot/dts/omap3-overo-tobi-common.dtsi | 6 +-
.../boot/dts/omap3-overo-tobiduo-common.dtsi | 8 +--
arch/arm/boot/dts/omap3-sb-t35.dtsi | 4 +-
arch/arm/boot/dts/omap4-duovero-parlor.dts | 6 +-
21 files changed, 105 insertions(+), 112 deletions(-)
diff --git a/arch/arm/boot/dts/logicpd-som-lv-baseboard.dtsi b/arch/arm/boot/dts/logicpd-som-lv-baseboard.dtsi
index 7d0468a23781..f2364cb114c5 100644
--- a/arch/arm/boot/dts/logicpd-som-lv-baseboard.dtsi
+++ b/arch/arm/boot/dts/logicpd-som-lv-baseboard.dtsi
@@ -65,7 +65,7 @@
1 0 0x2c000000 0x1000000 /* CS1: 16MB for LAN9221 */
2 0 0x10000000 0x2000000>; /* CS2: 32MB for NOR */
- ethernet@gpmc {
+ gpmc_ethernet: ethernet@1,0 {
pinctrl-names = "default";
pinctrl-0 = <&lan9221_pins>;
interrupt-parent = <&gpio5>;
diff --git a/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts b/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts
index 5532db04046c..6357915d207b 100644
--- a/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts
+++ b/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts
@@ -4,8 +4,8 @@
#include "omap36xx.dtsi"
#include "logicpd-torpedo-som.dtsi"
-#include "omap-gpmc-smsc9221.dtsi"
#include "logicpd-torpedo-baseboard.dtsi"
+#include "omap-gpmc-smsc9221.dtsi"
/ {
model = "LogicPD Zoom DM3730 Torpedo + Wireless Development Kit";
diff --git a/arch/arm/boot/dts/logicpd-torpedo-baseboard.dtsi b/arch/arm/boot/dts/logicpd-torpedo-baseboard.dtsi
index 533a47bc4a53..05049a34b6f1 100644
--- a/arch/arm/boot/dts/logicpd-torpedo-baseboard.dtsi
+++ b/arch/arm/boot/dts/logicpd-torpedo-baseboard.dtsi
@@ -95,7 +95,7 @@
ranges = <0 0 0x30000000 0x1000000 /* CS0: 16MB for NAND */
1 0 0x2c000000 0x1000000>; /* CS1: 16MB for LAN9221 */
- ethernet@gpmc {
+ gpmc_ethernet: ethernet@1,0 {
pinctrl-names = "default";
pinctrl-0 = <&lan9221_pins>;
interrupt-parent = <&gpio5>;
diff --git a/arch/arm/boot/dts/omap-gpmc-smsc911x.dtsi b/arch/arm/boot/dts/omap-gpmc-smsc911x.dtsi
index ded7e8fec9eb..2a462cb65a7d 100644
--- a/arch/arm/boot/dts/omap-gpmc-smsc911x.dtsi
+++ b/arch/arm/boot/dts/omap-gpmc-smsc911x.dtsi
@@ -20,36 +20,34 @@
};
};
-&gpmc {
- ethernet@gpmc {
- compatible = "smsc,lan9221", "smsc,lan9115";
- bank-width = <2>;
- gpmc,device-width = <1>;
- gpmc,cycle2cycle-samecsen = <1>;
- gpmc,cycle2cycle-diffcsen = <1>;
- gpmc,cs-on-ns = <5>;
- gpmc,cs-rd-off-ns = <150>;
- gpmc,cs-wr-off-ns = <150>;
- gpmc,adv-on-ns = <0>;
- gpmc,adv-rd-off-ns = <15>;
- gpmc,adv-wr-off-ns = <40>;
- gpmc,oe-on-ns = <45>;
- gpmc,oe-off-ns = <140>;
- gpmc,we-on-ns = <45>;
- gpmc,we-off-ns = <140>;
- gpmc,rd-cycle-ns = <155>;
- gpmc,wr-cycle-ns = <155>;
- gpmc,access-ns = <120>;
- gpmc,page-burst-access-ns = <20>;
- gpmc,bus-turnaround-ns = <75>;
- gpmc,cycle2cycle-delay-ns = <75>;
- gpmc,wait-monitoring-ns = <0>;
- gpmc,clk-activation-ns = <0>;
- gpmc,wr-data-mux-bus-ns = <0>;
- gpmc,wr-access-ns = <0>;
- vddvario-supply = <&vddvario>;
- vdd33a-supply = <&vdd33a>;
- reg-io-width = <4>;
- smsc,save-mac-address;
- };
+&gpmc_ethernet {
+ compatible = "smsc,lan9221", "smsc,lan9115";
+ bank-width = <2>;
+ gpmc,device-width = <1>;
+ gpmc,cycle2cycle-samecsen;
+ gpmc,cycle2cycle-diffcsen;
+ gpmc,cs-on-ns = <5>;
+ gpmc,cs-rd-off-ns = <150>;
+ gpmc,cs-wr-off-ns = <150>;
+ gpmc,adv-on-ns = <0>;
+ gpmc,adv-rd-off-ns = <15>;
+ gpmc,adv-wr-off-ns = <40>;
+ gpmc,oe-on-ns = <45>;
+ gpmc,oe-off-ns = <140>;
+ gpmc,we-on-ns = <45>;
+ gpmc,we-off-ns = <140>;
+ gpmc,rd-cycle-ns = <155>;
+ gpmc,wr-cycle-ns = <155>;
+ gpmc,access-ns = <120>;
+ gpmc,page-burst-access-ns = <20>;
+ gpmc,bus-turnaround-ns = <75>;
+ gpmc,cycle2cycle-delay-ns = <75>;
+ gpmc,wait-monitoring-ns = <0>;
+ gpmc,clk-activation-ns = <0>;
+ gpmc,wr-data-mux-bus-ns = <0>;
+ gpmc,wr-access-ns = <0>;
+ vddvario-supply = <&vddvario>;
+ vdd33a-supply = <&vdd33a>;
+ reg-io-width = <4>;
+ smsc,save-mac-address;
};
diff --git a/arch/arm/boot/dts/omap-gpmc-smsc9221.dtsi b/arch/arm/boot/dts/omap-gpmc-smsc9221.dtsi
index 7f6aefd13451..c1e78f929d2b 100644
--- a/arch/arm/boot/dts/omap-gpmc-smsc9221.dtsi
+++ b/arch/arm/boot/dts/omap-gpmc-smsc9221.dtsi
@@ -24,36 +24,33 @@
};
};
-&gpmc {
- ethernet@gpmc {
- compatible = "smsc,lan9221","smsc,lan9115";
- bank-width = <2>;
+&gpmc_ethernet {
+ compatible = "smsc,lan9221","smsc,lan9115";
+ bank-width = <2>;
+ gpmc,mux-add-data = <0>;
+ gpmc,cs-on-ns = <0>;
+ gpmc,cs-rd-off-ns = <42>;
+ gpmc,cs-wr-off-ns = <36>;
+ gpmc,adv-on-ns = <6>;
+ gpmc,adv-rd-off-ns = <12>;
+ gpmc,adv-wr-off-ns = <12>;
+ gpmc,oe-on-ns = <0>;
+ gpmc,oe-off-ns = <42>;
+ gpmc,we-on-ns = <0>;
+ gpmc,we-off-ns = <36>;
+ gpmc,rd-cycle-ns = <60>;
+ gpmc,wr-cycle-ns = <54>;
+ gpmc,access-ns = <36>;
+ gpmc,page-burst-access-ns = <0>;
+ gpmc,bus-turnaround-ns = <0>;
+ gpmc,cycle2cycle-delay-ns = <0>;
+ gpmc,wr-data-mux-bus-ns = <18>;
+ gpmc,wr-access-ns = <42>;
+ gpmc,cycle2cycle-samecsen;
+ gpmc,cycle2cycle-diffcsen;
- gpmc,mux-add-data;
- gpmc,cs-on-ns = <0>;
- gpmc,cs-rd-off-ns = <42>;
- gpmc,cs-wr-off-ns = <36>;
- gpmc,adv-on-ns = <6>;
- gpmc,adv-rd-off-ns = <12>;
- gpmc,adv-wr-off-ns = <12>;
- gpmc,oe-on-ns = <0>;
- gpmc,oe-off-ns = <42>;
- gpmc,we-on-ns = <0>;
- gpmc,we-off-ns = <36>;
- gpmc,rd-cycle-ns = <60>;
- gpmc,wr-cycle-ns = <54>;
- gpmc,access-ns = <36>;
- gpmc,page-burst-access-ns = <0>;
- gpmc,bus-turnaround-ns = <0>;
- gpmc,cycle2cycle-delay-ns = <0>;
- gpmc,wr-data-mux-bus-ns = <18>;
- gpmc,wr-access-ns = <42>;
- gpmc,cycle2cycle-samecsen;
- gpmc,cycle2cycle-diffcsen;
-
- vddvario-supply = <&vddvario>;
- vdd33a-supply = <&vdd33a>;
- reg-io-width = <4>;
- smsc,save-mac-address;
- };
+ vddvario-supply = <&vddvario>;
+ vdd33a-supply = <&vdd33a>;
+ reg-io-width = <4>;
+ smsc,save-mac-address;
};
diff --git a/arch/arm/boot/dts/omap-zoom-common.dtsi b/arch/arm/boot/dts/omap-zoom-common.dtsi
index d4ad9e58b199..47192c617cd1 100644
--- a/arch/arm/boot/dts/omap-zoom-common.dtsi
+++ b/arch/arm/boot/dts/omap-zoom-common.dtsi
@@ -3,8 +3,6 @@
* Common features on the Zoom debug board
*/
-#include "omap-gpmc-smsc911x.dtsi"
-
&gpmc {
ranges = <3 0 0x10000000 0x1000000>, /* CS3: 16MB for UART */
<7 0 0x2c000000 0x01000000>;
@@ -27,8 +25,8 @@
gpmc,mux-add-data = <0>;
gpmc,device-width = <1>;
gpmc,wait-pin = <1>;
- gpmc,cycle2cycle-samecsen = <1>;
- gpmc,cycle2cycle-diffcsen = <1>;
+ gpmc,cycle2cycle-samecsen;
+ gpmc,cycle2cycle-diffcsen;
gpmc,cs-on-ns = <5>;
gpmc,cs-rd-off-ns = <155>;
gpmc,cs-wr-off-ns = <155>;
@@ -50,7 +48,7 @@
gpmc,wr-data-mux-bus-ns = <45>;
gpmc,wr-access-ns = <145>;
};
- uart@3,1 {
+ uart@3,100 {
compatible = "ns16550a";
reg = <3 0x100 8>; /* CS3, offset 0x100, IO size 8 */
bank-width = <2>;
@@ -61,7 +59,7 @@
clock-frequency = <1843200>;
current-speed = <115200>;
};
- uart@3,2 {
+ uart@3,200 {
compatible = "ns16550a";
reg = <3 0x200 8>; /* CS3, offset 0x200, IO size 8 */
bank-width = <2>;
@@ -72,7 +70,7 @@
clock-frequency = <1843200>;
current-speed = <115200>;
};
- uart@3,3 {
+ uart@3,300 {
compatible = "ns16550a";
reg = <3 0x300 8>; /* CS3, offset 0x300, IO size 8 */
bank-width = <2>;
@@ -84,9 +82,11 @@
current-speed = <115200>;
};
- ethernet@gpmc {
+ gpmc_ethernet: ethernet@7,0 {
reg = <7 0 0xff>;
interrupt-parent = <&gpio5>;
interrupts = <30 IRQ_TYPE_LEVEL_LOW>; /* gpio158 */
};
};
+
+#include "omap-gpmc-smsc911x.dtsi"
diff --git a/arch/arm/boot/dts/omap2430-sdp.dts b/arch/arm/boot/dts/omap2430-sdp.dts
index 7d27e907533f..f74906e4721b 100644
--- a/arch/arm/boot/dts/omap2430-sdp.dts
+++ b/arch/arm/boot/dts/omap2430-sdp.dts
@@ -34,7 +34,7 @@
&gpmc {
ranges = <5 0 0x08000000 0x01000000>;
- ethernet@gpmc {
+ ethernet@5,300 {
compatible = "smsc,lan91c94";
interrupt-parent = <&gpio5>;
interrupts = <21 IRQ_TYPE_LEVEL_LOW>; /* gpio149 */
@@ -43,8 +43,8 @@
gpmc,sync-clk-ps = <0>;
gpmc,mux-add-data = <2>;
gpmc,device-width = <1>;
- gpmc,cycle2cycle-samecsen = <1>;
- gpmc,cycle2cycle-diffcsen = <1>;
+ gpmc,cycle2cycle-samecsen;
+ gpmc,cycle2cycle-diffcsen;
gpmc,cs-on-ns = <6>;
gpmc,cs-rd-off-ns = <187>;
gpmc,cs-wr-off-ns = <187>;
diff --git a/arch/arm/boot/dts/omap3-cm-t3x30.dtsi b/arch/arm/boot/dts/omap3-cm-t3x30.dtsi
index 5e8943539fcc..2059463de9d6 100644
--- a/arch/arm/boot/dts/omap3-cm-t3x30.dtsi
+++ b/arch/arm/boot/dts/omap3-cm-t3x30.dtsi
@@ -47,13 +47,11 @@
};
};
-#include "omap-gpmc-smsc911x.dtsi"
-
&gpmc {
ranges = <5 0 0x2c000000 0x01000000>, /* CM-T3x30 SMSC9x Eth */
<0 0 0x00000000 0x01000000>; /* CM-T3x NAND */
- smsc1: ethernet@gpmc {
+ gpmc_ethernet: ethernet@5,0 {
compatible = "smsc,lan9221", "smsc,lan9115";
pinctrl-names = "default";
pinctrl-0 = <&smsc1_pins>;
@@ -63,6 +61,8 @@
};
};
+#include "omap-gpmc-smsc911x.dtsi"
+
&i2c1 {
twl: twl@48 {
reg = <0x48>;
diff --git a/arch/arm/boot/dts/omap3-devkit8000-common.dtsi b/arch/arm/boot/dts/omap3-devkit8000-common.dtsi
index 2c19d6e255bd..5e55198e4576 100644
--- a/arch/arm/boot/dts/omap3-devkit8000-common.dtsi
+++ b/arch/arm/boot/dts/omap3-devkit8000-common.dtsi
@@ -267,8 +267,8 @@
gpmc,mux-add-data = <0>;
gpmc,device-width = <1>;
gpmc,wait-pin = <0>;
- gpmc,cycle2cycle-samecsen = <1>;
- gpmc,cycle2cycle-diffcsen = <1>;
+ gpmc,cycle2cycle-samecsen;
+ gpmc,cycle2cycle-diffcsen;
gpmc,cs-on-ns = <6>;
gpmc,cs-rd-off-ns = <180>;
diff --git a/arch/arm/boot/dts/omap3-evm-37xx.dts b/arch/arm/boot/dts/omap3-evm-37xx.dts
index c9332195d096..077b1a19f171 100644
--- a/arch/arm/boot/dts/omap3-evm-37xx.dts
+++ b/arch/arm/boot/dts/omap3-evm-37xx.dts
@@ -7,6 +7,7 @@
#include "omap36xx.dtsi"
#include "omap3-evm-common.dtsi"
#include "omap3-evm-processor-common.dtsi"
+#include "omap-gpmc-smsc911x.dtsi"
/ {
model = "TI OMAP37XX EVM (TMDSEVM3730)";
diff --git a/arch/arm/boot/dts/omap3-evm-common.dtsi b/arch/arm/boot/dts/omap3-evm-common.dtsi
index 17c89df6ce6b..2f7bdb248a51 100644
--- a/arch/arm/boot/dts/omap3-evm-common.dtsi
+++ b/arch/arm/boot/dts/omap3-evm-common.dtsi
@@ -4,7 +4,6 @@
*/
#include <dt-bindings/input/input.h>
-#include "omap-gpmc-smsc911x.dtsi"
/ {
cpus {
@@ -182,14 +181,6 @@
power = <50>;
};
-&gpmc {
- ethernet@gpmc {
- interrupt-parent = <&gpio6>;
- interrupts = <16 8>;
- reg = <5 0 0xff>;
- };
-};
-
&vaux2 {
regulator-name = "usb_1v8";
regulator-min-microvolt = <1800000>;
diff --git a/arch/arm/boot/dts/omap3-evm-processor-common.dtsi b/arch/arm/boot/dts/omap3-evm-processor-common.dtsi
index e6ba30a21166..3adb967b96c4 100644
--- a/arch/arm/boot/dts/omap3-evm-processor-common.dtsi
+++ b/arch/arm/boot/dts/omap3-evm-processor-common.dtsi
@@ -217,8 +217,11 @@
ranges = <0 0 0x30000000 0x1000000>, /* CS0: 16MB for NAND */
<5 0 0x2c000000 0x01000000>; /* CS5: 16MB for LAN9220 */
- ethernet@gpmc {
+ gpmc_ethernet: ethernet@5,0 {
pinctrl-names = "default";
pinctrl-0 = <&smsc911x_pins>;
+ interrupt-parent = <&gpio6>;
+ interrupts = <16 8>;
+ reg = <5 0 0xff>;
};
};
diff --git a/arch/arm/boot/dts/omap3-evm.dts b/arch/arm/boot/dts/omap3-evm.dts
index 5cc0cf7cd16c..805856d47cda 100644
--- a/arch/arm/boot/dts/omap3-evm.dts
+++ b/arch/arm/boot/dts/omap3-evm.dts
@@ -7,6 +7,7 @@
#include "omap34xx.dtsi"
#include "omap3-evm-common.dtsi"
#include "omap3-evm-processor-common.dtsi"
+#include "omap-gpmc-smsc911x.dtsi"
/ {
model = "TI OMAP35XX EVM (TMDSEVM3530)";
diff --git a/arch/arm/boot/dts/omap3-igep0020-common.dtsi b/arch/arm/boot/dts/omap3-igep0020-common.dtsi
index 73d8f471b9ec..104df84ea720 100644
--- a/arch/arm/boot/dts/omap3-igep0020-common.dtsi
+++ b/arch/arm/boot/dts/omap3-igep0020-common.dtsi
@@ -7,7 +7,6 @@
*/
#include "omap3-igep.dtsi"
-#include "omap-gpmc-smsc9221.dtsi"
/ {
@@ -217,7 +216,7 @@
ranges = <0 0 0x30000000 0x01000000>, /* CS0: 16MB for NAND */
<5 0 0x2c000000 0x01000000>; /* CS5: 16MB for ethernet */
- ethernet@gpmc {
+ gpmc_ethernet: ethernet@5,0 {
pinctrl-names = "default";
pinctrl-0 = <&smsc9221_pins>;
reg = <5 0 0xff>;
@@ -226,6 +225,8 @@
};
};
+#include "omap-gpmc-smsc9221.dtsi"
+
&uart2 {
pinctrl-names = "default";
pinctrl-0 = <&uart2_pins>;
diff --git a/arch/arm/boot/dts/omap3-ldp.dts b/arch/arm/boot/dts/omap3-ldp.dts
index 9c6a92724590..a299f04217fd 100644
--- a/arch/arm/boot/dts/omap3-ldp.dts
+++ b/arch/arm/boot/dts/omap3-ldp.dts
@@ -6,7 +6,6 @@
#include <dt-bindings/input/input.h>
#include "omap34xx.dtsi"
-#include "omap-gpmc-smsc911x.dtsi"
/ {
model = "TI OMAP3430 LDP (Zoom1 Labrador)";
@@ -148,13 +147,15 @@
};
};
- ethernet@gpmc {
+ gpmc_ethernet: ethernet@1,0 {
interrupt-parent = <&gpio5>;
interrupts = <24 IRQ_TYPE_LEVEL_LOW>;
reg = <1 0 0xff>;
};
};
+#include "omap-gpmc-smsc911x.dtsi"
+
&i2c1 {
clock-frequency = <2600000>;
diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts
index 32335d4ce478..35602d7876aa 100644
--- a/arch/arm/boot/dts/omap3-n900.dts
+++ b/arch/arm/boot/dts/omap3-n900.dts
@@ -936,7 +936,7 @@
};
/* Ethernet is on some early development boards and qemu */
- ethernet@gpmc {
+ ethernet@1,0 {
compatible = "smsc,lan91c94";
interrupt-parent = <&gpio2>;
interrupts = <22 IRQ_TYPE_LEVEL_HIGH>; /* gpio54 */
diff --git a/arch/arm/boot/dts/omap3-overo-chestnut43-common.dtsi b/arch/arm/boot/dts/omap3-overo-chestnut43-common.dtsi
index 2d2c61d7aa86..34b805851dd2 100644
--- a/arch/arm/boot/dts/omap3-overo-chestnut43-common.dtsi
+++ b/arch/arm/boot/dts/omap3-overo-chestnut43-common.dtsi
@@ -49,16 +49,16 @@
};
};
-#include "omap-gpmc-smsc9221.dtsi"
-
&gpmc {
- ethernet@gpmc {
+ gpmc_ethernet: ethernet@5,0 {
reg = <5 0 0xff>;
interrupt-parent = <&gpio6>;
interrupts = <16 IRQ_TYPE_LEVEL_LOW>; /* GPIO 176 */
};
};
+#include "omap-gpmc-smsc9221.dtsi"
+
&lis33de {
status = "disabled";
};
diff --git a/arch/arm/boot/dts/omap3-overo-tobi-common.dtsi b/arch/arm/boot/dts/omap3-overo-tobi-common.dtsi
index 9bf4b88a4b50..895803654e3c 100644
--- a/arch/arm/boot/dts/omap3-overo-tobi-common.dtsi
+++ b/arch/arm/boot/dts/omap3-overo-tobi-common.dtsi
@@ -21,16 +21,16 @@
};
};
-#include "omap-gpmc-smsc9221.dtsi"
-
&gpmc {
- ethernet@gpmc {
+ gpmc_ethernet: ethernet@5,0 {
reg = <5 0 0xff>;
interrupt-parent = <&gpio6>;
interrupts = <16 IRQ_TYPE_LEVEL_LOW>; /* GPIO 176 */
};
};
+#include "omap-gpmc-smsc9221.dtsi"
+
&lis33de {
status = "disabled";
};
diff --git a/arch/arm/boot/dts/omap3-overo-tobiduo-common.dtsi b/arch/arm/boot/dts/omap3-overo-tobiduo-common.dtsi
index e5da3bc6f105..c212d72dcfe9 100644
--- a/arch/arm/boot/dts/omap3-overo-tobiduo-common.dtsi
+++ b/arch/arm/boot/dts/omap3-overo-tobiduo-common.dtsi
@@ -9,10 +9,8 @@
#include "omap3-overo-common-peripherals.dtsi"
-#include "omap-gpmc-smsc9221.dtsi"
-
&gpmc {
- smsc1: ethernet@gpmc {
+ gpmc_ethernet: ethernet@5,0 {
reg = <5 0 0xff>;
interrupt-parent = <&gpio6>;
interrupts = <16 IRQ_TYPE_LEVEL_LOW>; /* GPIO 176 */
@@ -22,7 +20,7 @@
compatible = "smsc,lan9221","smsc,lan9115";
bank-width = <2>;
- gpmc,mux-add-data;
+ gpmc,mux-add-data = <0>;
gpmc,cs-on-ns = <0>;
gpmc,cs-rd-off-ns = <42>;
gpmc,cs-wr-off-ns = <36>;
@@ -54,6 +52,8 @@
};
};
+#include "omap-gpmc-smsc9221.dtsi"
+
&lis33de {
status = "disabled";
};
diff --git a/arch/arm/boot/dts/omap3-sb-t35.dtsi b/arch/arm/boot/dts/omap3-sb-t35.dtsi
index fb9842fa922c..5ec0893415e0 100644
--- a/arch/arm/boot/dts/omap3-sb-t35.dtsi
+++ b/arch/arm/boot/dts/omap3-sb-t35.dtsi
@@ -108,8 +108,8 @@
reg = <4 0 0xff>;
bank-width = <2>;
gpmc,device-width = <1>;
- gpmc,cycle2cycle-samecsen = <1>;
- gpmc,cycle2cycle-diffcsen = <1>;
+ gpmc,cycle2cycle-samecsen;
+ gpmc,cycle2cycle-diffcsen;
gpmc,cs-on-ns = <5>;
gpmc,cs-rd-off-ns = <150>;
gpmc,cs-wr-off-ns = <150>;
diff --git a/arch/arm/boot/dts/omap4-duovero-parlor.dts b/arch/arm/boot/dts/omap4-duovero-parlor.dts
index b294c22177cb..dfc50764c405 100644
--- a/arch/arm/boot/dts/omap4-duovero-parlor.dts
+++ b/arch/arm/boot/dts/omap4-duovero-parlor.dts
@@ -131,12 +131,10 @@
status = "disabled";
};
-#include "omap-gpmc-smsc911x.dtsi"
-
&gpmc {
ranges = <5 0 0x2c000000 0x1000000>; /* CS5 */
- ethernet@gpmc {
+ gpmc_ethernet: ethernet@5,0 {
reg = <5 0 0xff>;
interrupt-parent = <&gpio2>;
interrupts = <12 IRQ_TYPE_LEVEL_LOW>; /* gpio_44 */
@@ -170,6 +168,8 @@
};
};
+#include "omap-gpmc-smsc911x.dtsi"
+
&dss {
status = "okay";
};
--
2.17.1
^ permalink raw reply related [flat|nested] 21+ messages in thread
* [PATCH v4 2/8] dt-bindings: mtd: Remove gpmc-nor.txt
2021-09-14 12:26 [PATCH v4 0/8] dt-bindings: memory-controllers: ti,gpmc: Convert to yaml Roger Quadros
2021-09-14 12:26 ` [PATCH v4 1/8] ARM: dts: omap: Fixup GPMC child nodes Roger Quadros
@ 2021-09-14 12:26 ` Roger Quadros
2021-09-21 20:38 ` Rob Herring
2021-09-14 12:27 ` [PATCH v4 3/8] dt-bindings: net: Remove gpmc-eth.txt Roger Quadros
` (5 subsequent siblings)
7 siblings, 1 reply; 21+ messages in thread
From: Roger Quadros @ 2021-09-14 12:26 UTC (permalink / raw)
To: tony
Cc: robh+dt, grygorii.strashko, nm, lokeshvutla, nsekhar,
krzysztof.kozlowski, miquel.raynal, devicetree, linux-mtd,
linux-omap, linux-kernel, Roger Quadros
There is no GPMC NOR compatible or device driver. GPMC is just
a bus interface over which standard (CFI/JEDC) NOR Flash chips
can be attached.
For NOR chip bindings, please refer to
Documentation/devicetree/bindings/mtd/mtd-physmap.yaml
Signed-off-by: Roger Quadros <rogerq@kernel.org>
---
.../devicetree/bindings/mtd/gpmc-nor.txt | 98 -------------------
1 file changed, 98 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/mtd/gpmc-nor.txt
diff --git a/Documentation/devicetree/bindings/mtd/gpmc-nor.txt b/Documentation/devicetree/bindings/mtd/gpmc-nor.txt
deleted file mode 100644
index c8567b40fe13..000000000000
--- a/Documentation/devicetree/bindings/mtd/gpmc-nor.txt
+++ /dev/null
@@ -1,98 +0,0 @@
-Device tree bindings for NOR flash connect to TI GPMC
-
-NOR flash connected to the TI GPMC (found on OMAP boards) are represented as
-child nodes of the GPMC controller with a name of "nor".
-
-All timing relevant properties as well as generic GPMC child properties are
-explained in a separate documents. Please refer to
-Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
-
-Required properties:
-- bank-width: Width of NOR flash in bytes. GPMC supports 8-bit and
- 16-bit devices and so must be either 1 or 2 bytes.
-- compatible: Documentation/devicetree/bindings/mtd/mtd-physmap.txt
-- gpmc,cs-on-ns: Chip-select assertion time
-- gpmc,cs-rd-off-ns: Chip-select de-assertion time for reads
-- gpmc,cs-wr-off-ns: Chip-select de-assertion time for writes
-- gpmc,oe-on-ns: Output-enable assertion time
-- gpmc,oe-off-ns: Output-enable de-assertion time
-- gpmc,we-on-ns Write-enable assertion time
-- gpmc,we-off-ns: Write-enable de-assertion time
-- gpmc,access-ns: Start cycle to first data capture (read access)
-- gpmc,rd-cycle-ns: Total read cycle time
-- gpmc,wr-cycle-ns: Total write cycle time
-- linux,mtd-name: Documentation/devicetree/bindings/mtd/mtd-physmap.txt
-- reg: Chip-select, base address (relative to chip-select)
- and size of NOR flash. Note that base address will be
- typically 0 as this is the start of the chip-select.
-
-Optional properties:
-- gpmc,XXX Additional GPMC timings and settings parameters. See
- Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
-
-Optional properties for partition table parsing:
-- #address-cells: should be set to 1
-- #size-cells: should be set to 1
-
-Example:
-
-gpmc: gpmc@6e000000 {
- compatible = "ti,omap3430-gpmc", "simple-bus";
- ti,hwmods = "gpmc";
- reg = <0x6e000000 0x1000>;
- interrupts = <20>;
- gpmc,num-cs = <8>;
- gpmc,num-waitpins = <4>;
- #address-cells = <2>;
- #size-cells = <1>;
-
- ranges = <0 0 0x10000000 0x08000000>;
-
- nor@0,0 {
- compatible = "cfi-flash";
- linux,mtd-name= "intel,pf48f6000m0y1be";
- #address-cells = <1>;
- #size-cells = <1>;
- reg = <0 0 0x08000000>;
- bank-width = <2>;
-
- gpmc,mux-add-data;
- gpmc,cs-on-ns = <0>;
- gpmc,cs-rd-off-ns = <186>;
- gpmc,cs-wr-off-ns = <186>;
- gpmc,adv-on-ns = <12>;
- gpmc,adv-rd-off-ns = <48>;
- gpmc,adv-wr-off-ns = <48>;
- gpmc,oe-on-ns = <54>;
- gpmc,oe-off-ns = <168>;
- gpmc,we-on-ns = <54>;
- gpmc,we-off-ns = <168>;
- gpmc,rd-cycle-ns = <186>;
- gpmc,wr-cycle-ns = <186>;
- gpmc,access-ns = <114>;
- gpmc,page-burst-access-ns = <6>;
- gpmc,bus-turnaround-ns = <12>;
- gpmc,cycle2cycle-delay-ns = <18>;
- gpmc,wr-data-mux-bus-ns = <90>;
- gpmc,wr-access-ns = <186>;
- gpmc,cycle2cycle-samecsen;
- gpmc,cycle2cycle-diffcsen;
-
- partition@0 {
- label = "bootloader-nor";
- reg = <0 0x40000>;
- };
- partition@40000 {
- label = "params-nor";
- reg = <0x40000 0x40000>;
- };
- partition@80000 {
- label = "kernel-nor";
- reg = <0x80000 0x200000>;
- };
- partition@280000 {
- label = "filesystem-nor";
- reg = <0x240000 0x7d80000>;
- };
- };
-};
--
2.17.1
^ permalink raw reply related [flat|nested] 21+ messages in thread
* [PATCH v4 3/8] dt-bindings: net: Remove gpmc-eth.txt
2021-09-14 12:26 [PATCH v4 0/8] dt-bindings: memory-controllers: ti,gpmc: Convert to yaml Roger Quadros
2021-09-14 12:26 ` [PATCH v4 1/8] ARM: dts: omap: Fixup GPMC child nodes Roger Quadros
2021-09-14 12:26 ` [PATCH v4 2/8] dt-bindings: mtd: Remove gpmc-nor.txt Roger Quadros
@ 2021-09-14 12:27 ` Roger Quadros
2021-09-21 20:38 ` Rob Herring
2021-09-14 12:27 ` [PATCH v4 4/8] dt-bindings: memory-controllers: Introduce ti,gpmc-child Roger Quadros
` (4 subsequent siblings)
7 siblings, 1 reply; 21+ messages in thread
From: Roger Quadros @ 2021-09-14 12:27 UTC (permalink / raw)
To: tony
Cc: robh+dt, grygorii.strashko, nm, lokeshvutla, nsekhar,
krzysztof.kozlowski, miquel.raynal, devicetree, linux-mtd,
linux-omap, linux-kernel, Roger Quadros
There is no GPMC Ethernet compatible or device driver. GPMC is
just a bus interface over which devices like Ethernet controller
can be to.
For SMSC 911x Ethernet chip bindings, please refer to
Documentation/devicetree/bindings/net/smsc,lan9115.yaml
Signed-off-by: Roger Quadros <rogerq@kernel.org>
---
.../devicetree/bindings/net/gpmc-eth.txt | 97 -------------------
1 file changed, 97 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/net/gpmc-eth.txt
diff --git a/Documentation/devicetree/bindings/net/gpmc-eth.txt b/Documentation/devicetree/bindings/net/gpmc-eth.txt
deleted file mode 100644
index 32821066a85b..000000000000
--- a/Documentation/devicetree/bindings/net/gpmc-eth.txt
+++ /dev/null
@@ -1,97 +0,0 @@
-Device tree bindings for Ethernet chip connected to TI GPMC
-
-Besides being used to interface with external memory devices, the
-General-Purpose Memory Controller can be used to connect Pseudo-SRAM devices
-such as ethernet controllers to processors using the TI GPMC as a data bus.
-
-Ethernet controllers connected to TI GPMC are represented as child nodes of
-the GPMC controller with an "ethernet" name.
-
-All timing relevant properties as well as generic GPMC child properties are
-explained in a separate documents. Please refer to
-Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
-
-For the properties relevant to the ethernet controller connected to the GPMC
-refer to the binding documentation of the device. For example, the documentation
-for the SMSC 911x is Documentation/devicetree/bindings/net/smsc,lan9115.yaml
-
-Child nodes need to specify the GPMC bus address width using the "bank-width"
-property but is possible that an ethernet controller also has a property to
-specify the I/O registers address width. Even when the GPMC has a maximum 16-bit
-address width, it supports devices with 32-bit word registers.
-For example with an SMSC LAN911x/912x controller connected to the TI GPMC on an
-OMAP2+ board, "bank-width = <2>;" and "reg-io-width = <4>;".
-
-Required properties:
-- bank-width: Address width of the device in bytes. GPMC supports 8-bit
- and 16-bit devices and so must be either 1 or 2 bytes.
-- compatible: Compatible string property for the ethernet child device.
-- gpmc,cs-on-ns: Chip-select assertion time
-- gpmc,cs-rd-off-ns: Chip-select de-assertion time for reads
-- gpmc,cs-wr-off-ns: Chip-select de-assertion time for writes
-- gpmc,oe-on-ns: Output-enable assertion time
-- gpmc,oe-off-ns: Output-enable de-assertion time
-- gpmc,we-on-ns: Write-enable assertion time
-- gpmc,we-off-ns: Write-enable de-assertion time
-- gpmc,access-ns: Start cycle to first data capture (read access)
-- gpmc,rd-cycle-ns: Total read cycle time
-- gpmc,wr-cycle-ns: Total write cycle time
-- reg: Chip-select, base address (relative to chip-select)
- and size of the memory mapped for the device.
- Note that base address will be typically 0 as this
- is the start of the chip-select.
-
-Optional properties:
-- gpmc,XXX Additional GPMC timings and settings parameters. See
- Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
-
-Example:
-
-gpmc: gpmc@6e000000 {
- compatible = "ti,omap3430-gpmc";
- ti,hwmods = "gpmc";
- reg = <0x6e000000 0x1000>;
- interrupts = <20>;
- gpmc,num-cs = <8>;
- gpmc,num-waitpins = <4>;
- #address-cells = <2>;
- #size-cells = <1>;
-
- ranges = <5 0 0x2c000000 0x1000000>;
-
- ethernet@5,0 {
- compatible = "smsc,lan9221", "smsc,lan9115";
- reg = <5 0 0xff>;
- bank-width = <2>;
-
- gpmc,mux-add-data;
- gpmc,cs-on-ns = <0>;
- gpmc,cs-rd-off-ns = <186>;
- gpmc,cs-wr-off-ns = <186>;
- gpmc,adv-on-ns = <12>;
- gpmc,adv-rd-off-ns = <48>;
- gpmc,adv-wr-off-ns = <48>;
- gpmc,oe-on-ns = <54>;
- gpmc,oe-off-ns = <168>;
- gpmc,we-on-ns = <54>;
- gpmc,we-off-ns = <168>;
- gpmc,rd-cycle-ns = <186>;
- gpmc,wr-cycle-ns = <186>;
- gpmc,access-ns = <114>;
- gpmc,page-burst-access-ns = <6>;
- gpmc,bus-turnaround-ns = <12>;
- gpmc,cycle2cycle-delay-ns = <18>;
- gpmc,wr-data-mux-bus-ns = <90>;
- gpmc,wr-access-ns = <186>;
- gpmc,cycle2cycle-samecsen;
- gpmc,cycle2cycle-diffcsen;
-
- interrupt-parent = <&gpio6>;
- interrupts = <16>;
- vmmc-supply = <&vddvario>;
- vmmc_aux-supply = <&vdd33a>;
- reg-io-width = <4>;
-
- smsc,save-mac-address;
- };
-};
--
2.17.1
^ permalink raw reply related [flat|nested] 21+ messages in thread
* [PATCH v4 4/8] dt-bindings: memory-controllers: Introduce ti,gpmc-child
2021-09-14 12:26 [PATCH v4 0/8] dt-bindings: memory-controllers: ti,gpmc: Convert to yaml Roger Quadros
` (2 preceding siblings ...)
2021-09-14 12:27 ` [PATCH v4 3/8] dt-bindings: net: Remove gpmc-eth.txt Roger Quadros
@ 2021-09-14 12:27 ` Roger Quadros
2021-09-21 20:40 ` Rob Herring
2021-09-14 12:27 ` [PATCH v4 5/8] dt-bindings: mtd: ti,gpmc-nand: Convert to yaml Roger Quadros
` (3 subsequent siblings)
7 siblings, 1 reply; 21+ messages in thread
From: Roger Quadros @ 2021-09-14 12:27 UTC (permalink / raw)
To: tony
Cc: robh+dt, grygorii.strashko, nm, lokeshvutla, nsekhar,
krzysztof.kozlowski, miquel.raynal, devicetree, linux-mtd,
linux-omap, linux-kernel, Roger Quadros
This binding is meant for the child nodes of the TI GPMC node. The node
represents any device connected to the GPMC bus. It may be a Flash chip,
RAM chip or Ethernet controller, etc. These properties are meant for
configuring the GPMC settings/timings and will accompany the bindings
supported by the respective device.
Signed-off-by: Roger Quadros <rogerq@kernel.org>
---
.../memory-controllers/ti,gpmc-child.yaml | 245 ++++++++++++++++++
1 file changed, 245 insertions(+)
create mode 100644 Documentation/devicetree/bindings/memory-controllers/ti,gpmc-child.yaml
diff --git a/Documentation/devicetree/bindings/memory-controllers/ti,gpmc-child.yaml b/Documentation/devicetree/bindings/memory-controllers/ti,gpmc-child.yaml
new file mode 100644
index 000000000000..6e3995bb1630
--- /dev/null
+++ b/Documentation/devicetree/bindings/memory-controllers/ti,gpmc-child.yaml
@@ -0,0 +1,245 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/memory-controllers/ti,gpmc-child.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: device tree bindings for children of the Texas Instruments GPMC
+
+maintainers:
+ - Tony Lindgren <tony@atomide.com>
+ - Roger Quadros <rogerq@kernel.org>
+
+description:
+ This binding is meant for the child nodes of the GPMC node. The node
+ represents any device connected to the GPMC bus. It may be a Flash chip,
+ RAM chip or Ethernet controller, etc. These properties are meant for
+ configuring the GPMC settings/timings and will accompany the bindings
+ supported by the respective device.
+
+properties:
+ reg: true
+
+# GPMC Timing properties for child nodes. All are optional and default to 0.
+ gpmc,sync-clk-ps:
+ description: Minimum clock period for synchronous mode
+ default: 0
+
+# Chip-select signal timings corresponding to GPMC_CONFIG2:
+ gpmc,cs-on-ns:
+ description: Assertion time
+ default: 0
+
+ gpmc,cs-rd-off-ns:
+ description: Read deassertion time
+ default: 0
+
+ gpmc,cs-wr-off-ns:
+ description: Write deassertion time
+ default: 0
+
+# ADV signal timings corresponding to GPMC_CONFIG3:
+ gpmc,adv-on-ns:
+ description: Assertion time
+ default: 0
+
+ gpmc,adv-rd-off-ns:
+ description: Read deassertion time
+ default: 0
+
+ gpmc,adv-wr-off-ns:
+ description: Write deassertion time
+ default: 0
+
+ gpmc,adv-aad-mux-on-ns:
+ description: Assertion time for AAD
+ default: 0
+
+ gpmc,adv-aad-mux-rd-off-ns:
+ description: Read deassertion time for AAD
+ default: 0
+
+ gpmc,adv-aad-mux-wr-off-ns:
+ description: Write deassertion time for AAD
+ default: 0
+
+# WE signals timings corresponding to GPMC_CONFIG4:
+ gpmc,we-on-ns:
+ description: Assertion time
+ default: 0
+
+ gpmc,we-off-ns:
+ description: Deassertion time
+ default: 0
+
+# OE signals timings corresponding to GPMC_CONFIG4:
+ gpmc,oe-on-ns:
+ description: Assertion time
+ default: 0
+
+ gpmc,oe-off-ns:
+ description: Deassertion time
+ default: 0
+
+ gpmc,oe-aad-mux-on-ns:
+ description: Assertion time for AAD
+ default: 0
+
+ gpmc,oe-aad-mux-off-ns:
+ description: Deassertion time for AAD
+ default: 0
+
+# Access time and cycle time timings (in nanoseconds) corresponding to
+# GPMC_CONFIG5:
+ gpmc,page-burst-access-ns:
+ description: Multiple access word delay
+ default: 0
+
+ gpmc,access-ns:
+ description: Start-cycle to first data valid delay
+ default: 0
+
+ gpmc,rd-cycle-ns:
+ description: Total read cycle time
+ default: 0
+
+ gpmc,wr-cycle-ns:
+ description: Total write cycle time
+ default: 0
+
+ gpmc,bus-turnaround-ns:
+ description: Turn-around time between successive accesses
+ default: 0
+
+ gpmc,cycle2cycle-delay-ns:
+ description: Delay between chip-select pulses
+ default: 0
+
+ gpmc,clk-activation-ns:
+ description: GPMC clock activation time
+ default: 0
+
+ gpmc,wait-monitoring-ns:
+ description: Start of wait monitoring with regard to valid data
+ default: 0
+
+# Boolean timing parameters. If property is present, parameter is enabled
+# otherwise disabled.
+ gpmc,adv-extra-delay:
+ description: ADV signal is delayed by half GPMC clock
+ type: boolean
+
+ gpmc,cs-extra-delay:
+ description: CS signal is delayed by half GPMC clock
+ type: boolean
+
+ gpmc,cycle2cycle-diffcsen:
+ description: |
+ Add "cycle2cycle-delay" between successive accesses
+ to a different CS
+ type: boolean
+
+ gpmc,cycle2cycle-samecsen:
+ description: |
+ Add "cycle2cycle-delay" between successive accesses
+ to the same CS
+ type: boolean
+
+ gpmc,oe-extra-delay:
+ description: OE signal is delayed by half GPMC clock
+ type: boolean
+
+ gpmc,we-extra-delay:
+ description: WE signal is delayed by half GPMC clock
+ type: boolean
+
+ gpmc,time-para-granularity:
+ description: Multiply all access times by 2
+ type: boolean
+
+# The following two properties are applicable only to OMAP3+ and AM335x:
+ gpmc,wr-access-ns:
+ description: |
+ In synchronous write mode, for single or
+ burst accesses, defines the number of
+ GPMC_FCLK cycles from start access time
+ to the GPMC_CLK rising edge used by the
+ memory device for the first data capture.
+ default: 0
+
+ gpmc,wr-data-mux-bus-ns:
+ description: |
+ In address-data multiplex mode, specifies
+ the time when the first data is driven on
+ the address-data bus.
+ default: 0
+
+# GPMC chip-select settings properties for child nodes. All are optional.
+ gpmc,burst-length:
+ description: Page/burst length.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [0, 4, 8, 16]
+ default: 0
+
+ gpmc,burst-wrap:
+ description: Enables wrap bursting
+ type: boolean
+
+ gpmc,burst-read:
+ description: Enables read page/burst mode
+ type: boolean
+
+ gpmc,burst-write:
+ description: Enables write page/burst mode
+ type: boolean
+
+ gpmc,device-width:
+ description: |
+ Total width of device(s) connected to a GPMC
+ chip-select in bytes. The GPMC supports 8-bit
+ and 16-bit devices and so this property must be
+ 1 or 2.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [1, 2]
+ default: 1
+
+ gpmc,mux-add-data:
+ description: |
+ Address and data multiplexing configuration.
+ Valid values are
+ 0 for Non multiplexed mode
+ 1 for address-address-data multiplexing mode and
+ 2 for address-data multiplexing mode.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [0, 1, 2]
+
+ gpmc,sync-read:
+ description: |
+ Enables synchronous read. Defaults to asynchronous
+ is this is not set.
+ type: boolean
+
+ gpmc,sync-write:
+ description: |
+ Enables synchronous writes. Defaults to asynchronous
+ is this is not set.
+ type: boolean
+
+ gpmc,wait-pin:
+ description: |
+ Wait-pin used by client. Must be less than "gpmc,num-waitpins".
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ gpmc,wait-on-read:
+ description: Enables wait monitoring on reads.
+ type: boolean
+
+ gpmc,wait-on-write:
+ description: Enables wait monitoring on writes.
+ type: boolean
+
+required:
+ - reg
+
+# the GPMC child will have its own native properties
+additionalProperties: true
--
2.17.1
^ permalink raw reply related [flat|nested] 21+ messages in thread
* [PATCH v4 5/8] dt-bindings: mtd: ti,gpmc-nand: Convert to yaml
2021-09-14 12:26 [PATCH v4 0/8] dt-bindings: memory-controllers: ti,gpmc: Convert to yaml Roger Quadros
` (3 preceding siblings ...)
2021-09-14 12:27 ` [PATCH v4 4/8] dt-bindings: memory-controllers: Introduce ti,gpmc-child Roger Quadros
@ 2021-09-14 12:27 ` Roger Quadros
2021-09-21 20:43 ` Rob Herring
2021-09-14 12:27 ` [PATCH v4 6/8] dt-bindings: mtd: ti,gpmc-onenand: " Roger Quadros
` (2 subsequent siblings)
7 siblings, 1 reply; 21+ messages in thread
From: Roger Quadros @ 2021-09-14 12:27 UTC (permalink / raw)
To: tony
Cc: robh+dt, grygorii.strashko, nm, lokeshvutla, nsekhar,
krzysztof.kozlowski, miquel.raynal, devicetree, linux-mtd,
linux-omap, linux-kernel, Roger Quadros
Convert gpmc-nand.txt to ti,gpmc-nand.yaml.
Signed-off-by: Roger Quadros <rogerq@kernel.org>
---
.../devicetree/bindings/mtd/gpmc-nand.txt | 147 ------------------
.../devicetree/bindings/mtd/ti,gpmc-nand.yaml | 121 ++++++++++++++
2 files changed, 121 insertions(+), 147 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/mtd/gpmc-nand.txt
create mode 100644 Documentation/devicetree/bindings/mtd/ti,gpmc-nand.yaml
diff --git a/Documentation/devicetree/bindings/mtd/gpmc-nand.txt b/Documentation/devicetree/bindings/mtd/gpmc-nand.txt
deleted file mode 100644
index 44919d48d241..000000000000
--- a/Documentation/devicetree/bindings/mtd/gpmc-nand.txt
+++ /dev/null
@@ -1,147 +0,0 @@
-Device tree bindings for GPMC connected NANDs
-
-GPMC connected NAND (found on OMAP boards) are represented as child nodes of
-the GPMC controller with a name of "nand".
-
-All timing relevant properties as well as generic gpmc child properties are
-explained in a separate documents - please refer to
-Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
-
-For NAND specific properties such as ECC modes or bus width, please refer to
-Documentation/devicetree/bindings/mtd/nand-controller.yaml
-
-
-Required properties:
-
- - compatible: "ti,omap2-nand"
- - reg: range id (CS number), base offset and length of the
- NAND I/O space
- - interrupts: Two interrupt specifiers, one for fifoevent, one for termcount.
-
-Optional properties:
-
- - nand-bus-width: Set this numeric value to 16 if the hardware
- is wired that way. If not specified, a bus
- width of 8 is assumed.
-
- - ti,nand-ecc-opt: A string setting the ECC layout to use. One of:
- "sw" 1-bit Hamming ecc code via software
- "hw" <deprecated> use "ham1" instead
- "hw-romcode" <deprecated> use "ham1" instead
- "ham1" 1-bit Hamming ecc code
- "bch4" 4-bit BCH ecc code
- "bch8" 8-bit BCH ecc code
- "bch16" 16-bit BCH ECC code
- Refer below "How to select correct ECC scheme for your device ?"
-
- - ti,nand-xfer-type: A string setting the data transfer type. One of:
-
- "prefetch-polled" Prefetch polled mode (default)
- "polled" Polled mode, without prefetch
- "prefetch-dma" Prefetch enabled DMA mode
- "prefetch-irq" Prefetch enabled irq mode
-
- - elm_id: <deprecated> use "ti,elm-id" instead
- - ti,elm-id: Specifies phandle of the ELM devicetree node.
- ELM is an on-chip hardware engine on TI SoC which is used for
- locating ECC errors for BCHx algorithms. SoC devices which have
- ELM hardware engines should specify this device node in .dtsi
- Using ELM for ECC error correction frees some CPU cycles.
- - rb-gpios: GPIO specifier for the ready/busy# pin.
-
-For inline partition table parsing (optional):
-
- - #address-cells: should be set to 1
- - #size-cells: should be set to 1
-
-Example for an AM33xx board:
-
- gpmc: gpmc@50000000 {
- compatible = "ti,am3352-gpmc";
- ti,hwmods = "gpmc";
- reg = <0x50000000 0x36c>;
- interrupts = <100>;
- gpmc,num-cs = <8>;
- gpmc,num-waitpins = <2>;
- #address-cells = <2>;
- #size-cells = <1>;
- ranges = <0 0 0x08000000 0x1000000>; /* CS0 space, 16MB */
- elm_id = <&elm>;
- interrupt-controller;
- #interrupt-cells = <2>;
-
- nand@0,0 {
- compatible = "ti,omap2-nand";
- reg = <0 0 4>; /* CS0, offset 0, NAND I/O window 4 */
- interrupt-parent = <&gpmc>;
- interrupts = <0 IRQ_TYPE_NONE>, <1 IRQ_TYPE NONE>;
- nand-bus-width = <16>;
- ti,nand-ecc-opt = "bch8";
- ti,nand-xfer-type = "polled";
- rb-gpios = <&gpmc 0 GPIO_ACTIVE_HIGH>; /* gpmc_wait0 */
-
- gpmc,sync-clk-ps = <0>;
- gpmc,cs-on-ns = <0>;
- gpmc,cs-rd-off-ns = <44>;
- gpmc,cs-wr-off-ns = <44>;
- gpmc,adv-on-ns = <6>;
- gpmc,adv-rd-off-ns = <34>;
- gpmc,adv-wr-off-ns = <44>;
- gpmc,we-off-ns = <40>;
- gpmc,oe-off-ns = <54>;
- gpmc,access-ns = <64>;
- gpmc,rd-cycle-ns = <82>;
- gpmc,wr-cycle-ns = <82>;
- gpmc,wr-access-ns = <40>;
- gpmc,wr-data-mux-bus-ns = <0>;
-
- #address-cells = <1>;
- #size-cells = <1>;
-
- /* partitions go here */
- };
- };
-
-How to select correct ECC scheme for your device ?
---------------------------------------------------
-Higher ECC scheme usually means better protection against bit-flips and
-increased system lifetime. However, selection of ECC scheme is dependent
-on various other factors also like;
-
-(1) support of built in hardware engines.
- Some legacy OMAP SoC do not have ELM harware engine, so those SoC cannot
- support ecc-schemes with hardware error-correction (BCHx_HW). However
- such SoC can use ecc-schemes with software library for error-correction
- (BCHx_HW_DETECTION_SW). The error correction capability with software
- library remains equivalent to their hardware counter-part, but there is
- slight CPU penalty when too many bit-flips are detected during reads.
-
-(2) Device parameters like OOBSIZE.
- Other factor which governs the selection of ecc-scheme is oob-size.
- Higher ECC schemes require more OOB/Spare area to store ECC syndrome,
- so the device should have enough free bytes available its OOB/Spare
- area to accommodate ECC for entire page. In general following expression
- helps in determining if given device can accommodate ECC syndrome:
- "2 + (PAGESIZE / 512) * ECC_BYTES" >= OOBSIZE"
- where
- OOBSIZE number of bytes in OOB/spare area
- PAGESIZE number of bytes in main-area of device page
- ECC_BYTES number of ECC bytes generated to protect
- 512 bytes of data, which is:
- '3' for HAM1_xx ecc schemes
- '7' for BCH4_xx ecc schemes
- '14' for BCH8_xx ecc schemes
- '26' for BCH16_xx ecc schemes
-
- Example(a): For a device with PAGESIZE = 2048 and OOBSIZE = 64 and
- trying to use BCH16 (ECC_BYTES=26) ecc-scheme.
- Number of ECC bytes per page = (2 + (2048 / 512) * 26) = 106 B
- which is greater than capacity of NAND device (OOBSIZE=64)
- Hence, BCH16 cannot be supported on given device. But it can
- probably use lower ecc-schemes like BCH8.
-
- Example(b): For a device with PAGESIZE = 2048 and OOBSIZE = 128 and
- trying to use BCH16 (ECC_BYTES=26) ecc-scheme.
- Number of ECC bytes per page = (2 + (2048 / 512) * 26) = 106 B
- which can be accommodated in the OOB/Spare area of this device
- (OOBSIZE=128). So this device can use BCH16 ecc-scheme.
diff --git a/Documentation/devicetree/bindings/mtd/ti,gpmc-nand.yaml b/Documentation/devicetree/bindings/mtd/ti,gpmc-nand.yaml
new file mode 100644
index 000000000000..beb26b9bcfb2
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/ti,gpmc-nand.yaml
@@ -0,0 +1,121 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mtd/ti,gpmc-nand.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments GPMC NAND Flash controller.
+
+maintainers:
+ - Tony Lindgren <tony@atomide.com>
+ - Roger Quadros <rogerq@kernel.org>
+
+description:
+ GPMC NAND controller/Flash is represented as a child of the
+ GPMC controller node.
+
+properties:
+ compatible:
+ const: ti,omap2-nand
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ items:
+ - description: Interrupt for fifoevent
+ - description: Interrupt for termcount
+
+ "#address-cells": true
+
+ "#size-cells": true
+
+ ti,nand-ecc-opt:
+ description: Desired ECC algorithm
+ $ref: /schemas/types.yaml#/definitions/string
+ enum: [sw, ham1, bch4, bch8, bch16]
+
+ ti,nand-xfer-type:
+ description: Data transfer method between controller and chip.
+ $ref: /schemas/types.yaml#/definitions/string
+ enum: [prefetch-polled, polled, prefetch-dma, prefetch-irq]
+ default: prefetch-polled
+
+ ti,elm-id:
+ description:
+ phandle to the ELM (Error Location Module).
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+ nand-bus-width:
+ description:
+ Bus width to the NAND chip
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [8, 16]
+ default: 8
+
+patternProperties:
+ "@[0-9a-f]+$":
+ $ref: "/schemas/mtd/partitions/partition.yaml"
+
+allOf:
+ - $ref: "/schemas/memory-controllers/ti,gpmc-child.yaml"
+
+required:
+ - compatible
+ - reg
+ - ti,nand-ecc-opt
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/gpio/gpio.h>
+
+ gpmc: memory-controller@50000000 {
+ compatible = "ti,am3352-gpmc";
+ dmas = <&edma 52 0>;
+ dma-names = "rxtx";
+ clocks = <&l3s_gclk>;
+ clock-names = "fck";
+ reg = <0x50000000 0x2000>;
+ interrupts = <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>;
+ gpmc,num-cs = <7>;
+ gpmc,num-waitpins = <2>;
+ #address-cells = <2>;
+ #size-cells = <1>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ ranges = <0 0 0x08000000 0x01000000>; /* CS0 space. Min partition = 16MB */
+ nand@0,0 {
+ compatible = "ti,omap2-nand";
+ reg = <0 0 4>; /* device IO registers */
+ interrupt-parent = <&gpmc>;
+ interrupts = <0 IRQ_TYPE_NONE>, /* fifoevent */
+ <1 IRQ_TYPE_NONE>; /* termcount */
+ ti,nand-xfer-type = "prefetch-dma";
+ ti,nand-ecc-opt = "bch16";
+ ti,elm-id = <&elm>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ /* NAND generic properties */
+ nand-bus-width = <8>;
+ rb-gpios = <&gpmc 0 GPIO_ACTIVE_HIGH>; /* gpmc_wait0 */
+
+ /* GPMC properties*/
+ gpmc,device-width = <1>;
+
+ partition@0 {
+ label = "NAND.SPL";
+ reg = <0x00000000 0x00040000>;
+ };
+ partition@1 {
+ label = "NAND.SPL.backup1";
+ reg = <0x00040000 0x00040000>;
+ };
+ };
+ };
--
2.17.1
^ permalink raw reply related [flat|nested] 21+ messages in thread
* [PATCH v4 6/8] dt-bindings: mtd: ti,gpmc-onenand: Convert to yaml
2021-09-14 12:26 [PATCH v4 0/8] dt-bindings: memory-controllers: ti,gpmc: Convert to yaml Roger Quadros
` (4 preceding siblings ...)
2021-09-14 12:27 ` [PATCH v4 5/8] dt-bindings: mtd: ti,gpmc-nand: Convert to yaml Roger Quadros
@ 2021-09-14 12:27 ` Roger Quadros
2021-09-21 20:45 ` Rob Herring
2021-09-14 12:27 ` [PATCH v4 7/8] dt-bindings: memory-controllers: ti,gpmc: " Roger Quadros
2021-09-14 12:27 ` [PATCH v4 8/8] memory: gpmc-omap: "gpmc,device-width" DT property is optional Roger Quadros
7 siblings, 1 reply; 21+ messages in thread
From: Roger Quadros @ 2021-09-14 12:27 UTC (permalink / raw)
To: tony
Cc: robh+dt, grygorii.strashko, nm, lokeshvutla, nsekhar,
krzysztof.kozlowski, miquel.raynal, devicetree, linux-mtd,
linux-omap, linux-kernel, Roger Quadros
Convert gpmc-onenand.txt to ti,gpmc-onenand.yaml.
Signed-off-by: Roger Quadros <rogerq@kernel.org>
---
.../devicetree/bindings/mtd/gpmc-onenand.txt | 48 -----------
.../bindings/mtd/ti,gpmc-onenand.yaml | 81 +++++++++++++++++++
2 files changed, 81 insertions(+), 48 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/mtd/gpmc-onenand.txt
create mode 100644 Documentation/devicetree/bindings/mtd/ti,gpmc-onenand.yaml
diff --git a/Documentation/devicetree/bindings/mtd/gpmc-onenand.txt b/Documentation/devicetree/bindings/mtd/gpmc-onenand.txt
deleted file mode 100644
index e9f01a963a0a..000000000000
--- a/Documentation/devicetree/bindings/mtd/gpmc-onenand.txt
+++ /dev/null
@@ -1,48 +0,0 @@
-Device tree bindings for GPMC connected OneNANDs
-
-GPMC connected OneNAND (found on OMAP boards) are represented as child nodes of
-the GPMC controller with a name of "onenand".
-
-All timing relevant properties as well as generic gpmc child properties are
-explained in a separate documents - please refer to
-Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
-
-Required properties:
-
- - compatible: "ti,omap2-onenand"
- - reg: The CS line the peripheral is connected to
- - gpmc,device-width: Width of the ONENAND device connected to the GPMC
- in bytes. Must be 1 or 2.
-
-Optional properties:
-
- - int-gpios: GPIO specifier for the INT pin.
-
-For inline partition table parsing (optional):
-
- - #address-cells: should be set to 1
- - #size-cells: should be set to 1
-
-Example for an OMAP3430 board:
-
- gpmc: gpmc@6e000000 {
- compatible = "ti,omap3430-gpmc";
- ti,hwmods = "gpmc";
- reg = <0x6e000000 0x1000000>;
- interrupts = <20>;
- gpmc,num-cs = <8>;
- gpmc,num-waitpins = <4>;
- #address-cells = <2>;
- #size-cells = <1>;
-
- onenand@0 {
- compatible = "ti,omap2-onenand";
- reg = <0 0 0>; /* CS0, offset 0 */
- gpmc,device-width = <2>;
-
- #address-cells = <1>;
- #size-cells = <1>;
-
- /* partitions go here */
- };
- };
diff --git a/Documentation/devicetree/bindings/mtd/ti,gpmc-onenand.yaml b/Documentation/devicetree/bindings/mtd/ti,gpmc-onenand.yaml
new file mode 100644
index 000000000000..42149a9c3a8d
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/ti,gpmc-onenand.yaml
@@ -0,0 +1,81 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mtd/ti,gpmc-onenand.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: OneNAND over Texas Instruments GPMC bus.
+
+maintainers:
+ - Tony Lindgren <tony@atomide.com>
+ - Roger Quadros <rogerq@kernel.org>
+
+description:
+ GPMC connected OneNAND (found on OMAP boards) are represented
+ as child nodes of the GPMC controller.
+
+properties:
+ compatible:
+ const: ti,omap2-onenand
+
+ reg:
+ items:
+ - description: |
+ Chip Select number, register offset and size of
+ OneNAND register window.
+
+ "#address-cells": true
+
+ "#size-cells": true
+
+ int-gpios:
+ description: GPIO specifier for the INT pin.
+
+patternProperties:
+ "@[0-9a-f]+$":
+ $ref: "/schemas/mtd/partitions/partition.yaml"
+
+allOf:
+ - $ref: "/schemas/memory-controllers/ti,gpmc-child.yaml"
+
+required:
+ - compatible
+ - reg
+ - "#address-cells"
+ - "#size-cells"
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ gpmc: memory-controller@6e000000 {
+ compatible = "ti,omap3430-gpmc";
+ reg = <0x6e000000 0x02d0>;
+ interrupts = <20>;
+ gpmc,num-cs = <8>;
+ gpmc,num-waitpins = <4>;
+ clocks = <&l3s_clkctrl>;
+ clock-names = "fck";
+ #address-cells = <2>;
+ #size-cells = <1>;
+
+ ranges = <0 0 0x01000000 0x01000000>, /* 16 MB for OneNAND */
+ <1 0 0x02000000 0x01000000>; /* 16 MB for smc91c96 */
+
+ onenand@0,0 {
+ compatible = "ti,omap2-onenand";
+ reg = <0 0 0x20000>; /* CS0, offset 0, IO size 128K */
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partition@0 {
+ label = "bootloader";
+ reg = <0x00000000 0x00100000>;
+ };
+
+ partition@1 {
+ label = "config";
+ reg = <0x00100000 0x002c0000>;
+ };
+ };
+ };
--
2.17.1
^ permalink raw reply related [flat|nested] 21+ messages in thread
* [PATCH v4 7/8] dt-bindings: memory-controllers: ti,gpmc: Convert to yaml
2021-09-14 12:26 [PATCH v4 0/8] dt-bindings: memory-controllers: ti,gpmc: Convert to yaml Roger Quadros
` (5 preceding siblings ...)
2021-09-14 12:27 ` [PATCH v4 6/8] dt-bindings: mtd: ti,gpmc-onenand: " Roger Quadros
@ 2021-09-14 12:27 ` Roger Quadros
2021-09-15 7:20 ` Krzysztof Kozlowski
2021-09-21 20:47 ` Rob Herring
2021-09-14 12:27 ` [PATCH v4 8/8] memory: gpmc-omap: "gpmc,device-width" DT property is optional Roger Quadros
7 siblings, 2 replies; 21+ messages in thread
From: Roger Quadros @ 2021-09-14 12:27 UTC (permalink / raw)
To: tony
Cc: robh+dt, grygorii.strashko, nm, lokeshvutla, nsekhar,
krzysztof.kozlowski, miquel.raynal, devicetree, linux-mtd,
linux-omap, linux-kernel, Roger Quadros
Convert omap-gpmc.txt to ti,gpmc.yaml.
Signed-off-by: Roger Quadros <rogerq@kernel.org>
---
.../bindings/memory-controllers/omap-gpmc.txt | 157 ----------------
.../bindings/memory-controllers/ti,gpmc.yaml | 172 ++++++++++++++++++
2 files changed, 172 insertions(+), 157 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
create mode 100644 Documentation/devicetree/bindings/memory-controllers/ti,gpmc.yaml
diff --git a/Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt b/Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
deleted file mode 100644
index c1359f4d48d7..000000000000
--- a/Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
+++ /dev/null
@@ -1,157 +0,0 @@
-Device tree bindings for OMAP general purpose memory controllers (GPMC)
-
-The actual devices are instantiated from the child nodes of a GPMC node.
-
-Required properties:
-
- - compatible: Should be set to one of the following:
-
- ti,omap2420-gpmc (omap2420)
- ti,omap2430-gpmc (omap2430)
- ti,omap3430-gpmc (omap3430 & omap3630)
- ti,omap4430-gpmc (omap4430 & omap4460 & omap543x)
- ti,am3352-gpmc (am335x devices)
-
- - reg: A resource specifier for the register space
- (see the example below)
- - ti,hwmods: Should be set to "ti,gpmc" until the DT transition is
- completed.
- - #address-cells: Must be set to 2 to allow memory address translation
- - #size-cells: Must be set to 1 to allow CS address passing
- - gpmc,num-cs: The maximum number of chip-select lines that controller
- can support.
- - gpmc,num-waitpins: The maximum number of wait pins that controller can
- support.
- - ranges: Must be set up to reflect the memory layout with four
- integer values for each chip-select line in use:
-
- <cs-number> 0 <physical address of mapping> <size>
-
- Currently, calculated values derived from the contents
- of the per-CS register GPMC_CONFIG7 (as set up by the
- bootloader) are used for the physical address decoding.
- As this will change in the future, filling correct
- values here is a requirement.
- - interrupt-controller: The GPMC driver implements and interrupt controller for
- the NAND events "fifoevent" and "termcount" plus the
- rising/falling edges on the GPMC_WAIT pins.
- The interrupt number mapping is as follows
- 0 - NAND_fifoevent
- 1 - NAND_termcount
- 2 - GPMC_WAIT0 pin edge
- 3 - GPMC_WAIT1 pin edge, and so on.
- - interrupt-cells: Must be set to 2
- - gpio-controller: The GPMC driver implements a GPIO controller for the
- GPMC WAIT pins that can be used as general purpose inputs.
- 0 maps to GPMC_WAIT0 pin.
- - gpio-cells: Must be set to 2
-
-Required properties when using NAND prefetch dma:
- - dmas GPMC NAND prefetch dma channel
- - dma-names Must be set to "rxtx"
-
-Timing properties for child nodes. All are optional and default to 0.
-
- - gpmc,sync-clk-ps: Minimum clock period for synchronous mode, in picoseconds
-
- Chip-select signal timings (in nanoseconds) corresponding to GPMC_CONFIG2:
- - gpmc,cs-on-ns: Assertion time
- - gpmc,cs-rd-off-ns: Read deassertion time
- - gpmc,cs-wr-off-ns: Write deassertion time
-
- ADV signal timings (in nanoseconds) corresponding to GPMC_CONFIG3:
- - gpmc,adv-on-ns: Assertion time
- - gpmc,adv-rd-off-ns: Read deassertion time
- - gpmc,adv-wr-off-ns: Write deassertion time
- - gpmc,adv-aad-mux-on-ns: Assertion time for AAD
- - gpmc,adv-aad-mux-rd-off-ns: Read deassertion time for AAD
- - gpmc,adv-aad-mux-wr-off-ns: Write deassertion time for AAD
-
- WE signals timings (in nanoseconds) corresponding to GPMC_CONFIG4:
- - gpmc,we-on-ns Assertion time
- - gpmc,we-off-ns: Deassertion time
-
- OE signals timings (in nanoseconds) corresponding to GPMC_CONFIG4:
- - gpmc,oe-on-ns: Assertion time
- - gpmc,oe-off-ns: Deassertion time
- - gpmc,oe-aad-mux-on-ns: Assertion time for AAD
- - gpmc,oe-aad-mux-off-ns: Deassertion time for AAD
-
- Access time and cycle time timings (in nanoseconds) corresponding to
- GPMC_CONFIG5:
- - gpmc,page-burst-access-ns: Multiple access word delay
- - gpmc,access-ns: Start-cycle to first data valid delay
- - gpmc,rd-cycle-ns: Total read cycle time
- - gpmc,wr-cycle-ns: Total write cycle time
- - gpmc,bus-turnaround-ns: Turn-around time between successive accesses
- - gpmc,cycle2cycle-delay-ns: Delay between chip-select pulses
- - gpmc,clk-activation-ns: GPMC clock activation time
- - gpmc,wait-monitoring-ns: Start of wait monitoring with regard to valid
- data
-
-Boolean timing parameters. If property is present parameter enabled and
-disabled if omitted:
- - gpmc,adv-extra-delay: ADV signal is delayed by half GPMC clock
- - gpmc,cs-extra-delay: CS signal is delayed by half GPMC clock
- - gpmc,cycle2cycle-diffcsen: Add "cycle2cycle-delay" between successive
- accesses to a different CS
- - gpmc,cycle2cycle-samecsen: Add "cycle2cycle-delay" between successive
- accesses to the same CS
- - gpmc,oe-extra-delay: OE signal is delayed by half GPMC clock
- - gpmc,we-extra-delay: WE signal is delayed by half GPMC clock
- - gpmc,time-para-granularity: Multiply all access times by 2
-
-The following are only applicable to OMAP3+ and AM335x:
- - gpmc,wr-access-ns: In synchronous write mode, for single or
- burst accesses, defines the number of
- GPMC_FCLK cycles from start access time
- to the GPMC_CLK rising edge used by the
- memory device for the first data capture.
- - gpmc,wr-data-mux-bus-ns: In address-data multiplex mode, specifies
- the time when the first data is driven on
- the address-data bus.
-
-GPMC chip-select settings properties for child nodes. All are optional.
-
-- gpmc,burst-length Page/burst length. Must be 4, 8 or 16.
-- gpmc,burst-wrap Enables wrap bursting
-- gpmc,burst-read Enables read page/burst mode
-- gpmc,burst-write Enables write page/burst mode
-- gpmc,device-width Total width of device(s) connected to a GPMC
- chip-select in bytes. The GPMC supports 8-bit
- and 16-bit devices and so this property must be
- 1 or 2.
-- gpmc,mux-add-data Address and data multiplexing configuration.
- Valid values are 1 for address-address-data
- multiplexing mode and 2 for address-data
- multiplexing mode.
-- gpmc,sync-read Enables synchronous read. Defaults to asynchronous
- is this is not set.
-- gpmc,sync-write Enables synchronous writes. Defaults to asynchronous
- is this is not set.
-- gpmc,wait-pin Wait-pin used by client. Must be less than
- "gpmc,num-waitpins".
-- gpmc,wait-on-read Enables wait monitoring on reads.
-- gpmc,wait-on-write Enables wait monitoring on writes.
-
-Example for an AM33xx board:
-
- gpmc: gpmc@50000000 {
- compatible = "ti,am3352-gpmc";
- ti,hwmods = "gpmc";
- reg = <0x50000000 0x2000>;
- interrupts = <100>;
- dmas = <&edma 52 0>;
- dma-names = "rxtx";
- gpmc,num-cs = <8>;
- gpmc,num-waitpins = <2>;
- #address-cells = <2>;
- #size-cells = <1>;
- ranges = <0 0 0x08000000 0x10000000>; /* CS0 @addr 0x8000000, size 0x10000000 */
- interrupt-controller;
- #interrupt-cells = <2>;
- gpio-controller;
- #gpio-cells = <2>;
-
- /* child nodes go here */
- };
diff --git a/Documentation/devicetree/bindings/memory-controllers/ti,gpmc.yaml b/Documentation/devicetree/bindings/memory-controllers/ti,gpmc.yaml
new file mode 100644
index 000000000000..d6cd39bd3940
--- /dev/null
+++ b/Documentation/devicetree/bindings/memory-controllers/ti,gpmc.yaml
@@ -0,0 +1,172 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/memory-controllers/ti,gpmc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments GPMC Memory Controller device-tree bindings
+
+maintainers:
+ - Tony Lindgren <tony@atomide.com>
+ - Roger Quadros <rogerq@kernel.org>
+
+description:
+ The GPMC is a unified memory controller dedicated for interfacing
+ with external memory devices like
+ - Asynchronous SRAM-like memories and ASICs
+ - Asynchronous, synchronous, and page mode burst NOR flash
+ - NAND flash
+ - Pseudo-SRAM devices
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - ti,omap2420-gpmc
+ - ti,omap2430-gpmc
+ - ti,omap3430-gpmc
+ - ti,omap4430-gpmc
+ - ti,am3352-gpmc
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+ description: |
+ Functional clock. Used for bus timing calculations and
+ GPMC configuration.
+
+ clock-names:
+ items:
+ - const: fck
+
+ dmas:
+ items:
+ - description: DMA channel for GPMC NAND prefetch
+
+ dma-names:
+ items:
+ - const: rxtx
+
+ "#address-cells": true
+
+ "#size-cells": true
+
+ gpmc,num-cs:
+ description: maximum number of supported chip-select lines.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ gpmc,num-waitpins:
+ description: maximum number of supported wait pins.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ ranges:
+ minItems: 1
+ description: |
+ Must be set up to reflect the memory layout with four
+ integer values for each chip-select line in use,
+ <cs-number> 0 <physical address of mapping> <size>
+ items:
+ - description: NAND bank 0
+ - description: NOR/SRAM bank 0
+ - description: NOR/SRAM bank 1
+
+ '#interrupt-cells':
+ const: 2
+
+ interrupt-controller:
+ description: |
+ The GPMC driver implements and interrupt controller for
+ the NAND events "fifoevent" and "termcount" plus the
+ rising/falling edges on the GPMC_WAIT pins.
+ The interrupt number mapping is as follows
+ 0 - NAND_fifoevent
+ 1 - NAND_termcount
+ 2 - GPMC_WAIT0 pin edge
+ 3 - GPMC_WAIT1 pin edge, and so on.
+
+ '#gpio-cells':
+ const: 2
+
+ gpio-controller:
+ description: |
+ The GPMC driver implements a GPIO controller for the
+ GPMC WAIT pins that can be used as general purpose inputs.
+ 0 maps to GPMC_WAIT0 pin.
+
+ ti,hwmods:
+ description:
+ Name of the HWMOD associated with GPMC. This is for legacy
+ omap2/3 platforms only.
+ $ref: /schemas/types.yaml#/definitions/string
+ deprecated: true
+
+ ti,no-idle-on-init:
+ description:
+ Prevent idling the module at init. This is for legacy omap2/3
+ platforms only.
+ type: boolean
+ deprecated: true
+
+patternProperties:
+ "@[0-7],[a-f0-9]+$":
+ type: object
+ description: |
+ The child device node represents the device connected to the GPMC
+ bus. The device can be a NAND chip, SRAM device, NOR device
+ or an ASIC.
+
+ allOf:
+ - $ref: "ti,gpmc-child.yaml"
+
+ unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+ - gpmc,num-cs
+ - gpmc,num-waitpins
+ - "#address-cells"
+ - "#size-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/gpio/gpio.h>
+
+ gpmc: memory-controller@50000000 {
+ compatible = "ti,am3352-gpmc";
+ reg = <0x50000000 0x2000>;
+ interrupts = <100>;
+ clocks = <&l3s_clkctrl>;
+ clock-names = "fck";
+ dmas = <&edma 52 0>;
+ dma-names = "rxtx";
+ gpmc,num-cs = <8>;
+ gpmc,num-waitpins = <2>;
+ #address-cells = <2>;
+ #size-cells = <1>;
+ ranges = <0 0 0x08000000 0x10000000>; /* CS0 @addr 0x8000000, size 0x10000000 */
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ nand@0,0 {
+ compatible = "ti,omap2-nand";
+ reg = <0 0 4>;
+ interrupt-parent = <&gpmc>;
+ interrupts = <0 IRQ_TYPE_NONE>, /* fifoevent */
+ <1 IRQ_TYPE_NONE>; /* termcount */
+ ti,nand-xfer-type = "prefetch-dma";
+ ti,nand-ecc-opt = "bch16";
+ ti,elm-id = <&elm>;
+ rb-gpios = <&gpmc 0 GPIO_ACTIVE_HIGH>; /* gpmc_wait0 pin */
+ };
+ };
--
2.17.1
^ permalink raw reply related [flat|nested] 21+ messages in thread
* [PATCH v4 8/8] memory: gpmc-omap: "gpmc,device-width" DT property is optional
2021-09-14 12:26 [PATCH v4 0/8] dt-bindings: memory-controllers: ti,gpmc: Convert to yaml Roger Quadros
` (6 preceding siblings ...)
2021-09-14 12:27 ` [PATCH v4 7/8] dt-bindings: memory-controllers: ti,gpmc: " Roger Quadros
@ 2021-09-14 12:27 ` Roger Quadros
2021-09-15 7:12 ` Krzysztof Kozlowski
7 siblings, 1 reply; 21+ messages in thread
From: Roger Quadros @ 2021-09-14 12:27 UTC (permalink / raw)
To: tony
Cc: robh+dt, grygorii.strashko, nm, lokeshvutla, nsekhar,
krzysztof.kozlowski, miquel.raynal, devicetree, linux-mtd,
linux-omap, linux-kernel, Roger Quadros
Check for valid gpmc,device-width, nand-bus-width and bank-width
at one place. Default to 8-bit width if none present.
Signed-off-by: Roger Quadros <rogerq@kernel.org>
---
drivers/memory/omap-gpmc.c | 41 ++++++++++++++++++++++++--------------
1 file changed, 26 insertions(+), 15 deletions(-)
diff --git a/drivers/memory/omap-gpmc.c b/drivers/memory/omap-gpmc.c
index f80c2ea39ca4..32d7c665f33c 100644
--- a/drivers/memory/omap-gpmc.c
+++ b/drivers/memory/omap-gpmc.c
@@ -2171,10 +2171,8 @@ static int gpmc_probe_generic_child(struct platform_device *pdev,
}
}
- if (of_device_is_compatible(child, "ti,omap2-nand")) {
- /* NAND specific setup */
- val = 8;
- of_property_read_u32(child, "nand-bus-width", &val);
+ /* DT node can have "nand-bus-width" or "bank-width" or "gpmc,device-width" */
+ if (!of_property_read_u32(child, "nand-bus-width", &val)) {
switch (val) {
case 8:
gpmc_s.device_width = GPMC_DEVWIDTH_8BIT;
@@ -2183,24 +2181,37 @@ static int gpmc_probe_generic_child(struct platform_device *pdev,
gpmc_s.device_width = GPMC_DEVWIDTH_16BIT;
break;
default:
- dev_err(&pdev->dev, "%pOFn: invalid 'nand-bus-width'\n",
- child);
+ dev_err(&pdev->dev,
+ "%pOFn: invalid 'nand-bus-width':%d\n", child, val);
+ ret = -EINVAL;
+ goto err;
+ }
+ } else if (!of_property_read_u32(child, "bank-width", &val)) {
+ if (val != 1 && val != 2) {
+ dev_err(&pdev->dev,
+ "%pOFn: invalid 'bank-width':%d\n", child, val);
ret = -EINVAL;
goto err;
}
+ gpmc_s.device_width = val;
+ } else if (!of_property_read_u32(child, "gpmc,device-width", &val)) {
+ if (val != 1 && val != 2) {
+ dev_err(&pdev->dev,
+ "%pOFn: invalid 'gpmc,device-width':%d\n", child, val);
+ ret = -EINVAL;
+ goto err;
+ }
+ gpmc_s.device_width = val;
+ } else {
+ /* default to 8-bit */
+ gpmc_s.device_width = GPMC_DEVWIDTH_8BIT;
+ }
+ if (of_device_is_compatible(child, "ti,omap2-nand")) {
+ /* NAND specific setup */
/* disable write protect */
gpmc_configure(GPMC_CONFIG_WP, 0);
gpmc_s.device_nand = true;
- } else {
- ret = of_property_read_u32(child, "bank-width",
- &gpmc_s.device_width);
- if (ret < 0 && !gpmc_s.device_width) {
- dev_err(&pdev->dev,
- "%pOF has no 'gpmc,device-width' property\n",
- child);
- goto err;
- }
}
/* Reserve wait pin if it is required and valid */
--
2.17.1
^ permalink raw reply related [flat|nested] 21+ messages in thread
* Re: [PATCH v4 1/8] ARM: dts: omap: Fixup GPMC child nodes
2021-09-14 12:26 ` [PATCH v4 1/8] ARM: dts: omap: Fixup GPMC child nodes Roger Quadros
@ 2021-09-15 6:53 ` Krzysztof Kozlowski
0 siblings, 0 replies; 21+ messages in thread
From: Krzysztof Kozlowski @ 2021-09-15 6:53 UTC (permalink / raw)
To: Roger Quadros, tony
Cc: robh+dt, grygorii.strashko, nm, lokeshvutla, nsekhar,
miquel.raynal, devicetree, linux-mtd, linux-omap, linux-kernel
On 14/09/2021 14:26, Roger Quadros wrote:
> Fixes up the GPMC child nodes to prevent dtbs_check errors
> after device tree binding conversion to yaml.
>
> - Use reg address as node name
> - gpmc,cycle2cycle-samecsen and gpmc,cycle2cycle-diffcsen are
> boolean properties.
>
> Signed-off-by: Roger Quadros <rogerq@kernel.org>
> ---
> .../boot/dts/logicpd-som-lv-baseboard.dtsi | 2 +-
> .../boot/dts/logicpd-torpedo-37xx-devkit.dts | 2 +-
> .../boot/dts/logicpd-torpedo-baseboard.dtsi | 2 +-
> arch/arm/boot/dts/omap-gpmc-smsc911x.dtsi | 62 +++++++++----------
> arch/arm/boot/dts/omap-gpmc-smsc9221.dtsi | 59 +++++++++---------
> arch/arm/boot/dts/omap-zoom-common.dtsi | 16 ++---
> arch/arm/boot/dts/omap2430-sdp.dts | 6 +-
> arch/arm/boot/dts/omap3-cm-t3x30.dtsi | 6 +-
> .../arm/boot/dts/omap3-devkit8000-common.dtsi | 4 +-
> arch/arm/boot/dts/omap3-evm-37xx.dts | 1 +
> arch/arm/boot/dts/omap3-evm-common.dtsi | 9 ---
> .../boot/dts/omap3-evm-processor-common.dtsi | 5 +-
> arch/arm/boot/dts/omap3-evm.dts | 1 +
> arch/arm/boot/dts/omap3-igep0020-common.dtsi | 5 +-
> arch/arm/boot/dts/omap3-ldp.dts | 5 +-
> arch/arm/boot/dts/omap3-n900.dts | 2 +-
> .../dts/omap3-overo-chestnut43-common.dtsi | 6 +-
> .../arm/boot/dts/omap3-overo-tobi-common.dtsi | 6 +-
> .../boot/dts/omap3-overo-tobiduo-common.dtsi | 8 +--
> arch/arm/boot/dts/omap3-sb-t35.dtsi | 4 +-
> arch/arm/boot/dts/omap4-duovero-parlor.dts | 6 +-
> 21 files changed, 105 insertions(+), 112 deletions(-)
>
> diff --git a/arch/arm/boot/dts/logicpd-som-lv-baseboard.dtsi b/arch/arm/boot/dts/logicpd-som-lv-baseboard.dtsi
> index 7d0468a23781..f2364cb114c5 100644
> --- a/arch/arm/boot/dts/logicpd-som-lv-baseboard.dtsi
> +++ b/arch/arm/boot/dts/logicpd-som-lv-baseboard.dtsi
> @@ -65,7 +65,7 @@
> 1 0 0x2c000000 0x1000000 /* CS1: 16MB for LAN9221 */
> 2 0 0x10000000 0x2000000>; /* CS2: 32MB for NOR */
>
> - ethernet@gpmc {
> + gpmc_ethernet: ethernet@1,0 {
> pinctrl-names = "default";
> pinctrl-0 = <&lan9221_pins>;
> interrupt-parent = <&gpio5>;
> diff --git a/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts b/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts
> index 5532db04046c..6357915d207b 100644
> --- a/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts
> +++ b/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts
> @@ -4,8 +4,8 @@
>
> #include "omap36xx.dtsi"
> #include "logicpd-torpedo-som.dtsi"
> -#include "omap-gpmc-smsc9221.dtsi"
> #include "logicpd-torpedo-baseboard.dtsi"
> +#include "omap-gpmc-smsc9221.dtsi"
>
> / {
> model = "LogicPD Zoom DM3730 Torpedo + Wireless Development Kit";
> diff --git a/arch/arm/boot/dts/logicpd-torpedo-baseboard.dtsi b/arch/arm/boot/dts/logicpd-torpedo-baseboard.dtsi
> index 533a47bc4a53..05049a34b6f1 100644
> --- a/arch/arm/boot/dts/logicpd-torpedo-baseboard.dtsi
> +++ b/arch/arm/boot/dts/logicpd-torpedo-baseboard.dtsi
> @@ -95,7 +95,7 @@
> ranges = <0 0 0x30000000 0x1000000 /* CS0: 16MB for NAND */
> 1 0 0x2c000000 0x1000000>; /* CS1: 16MB for LAN9221 */
>
> - ethernet@gpmc {
> + gpmc_ethernet: ethernet@1,0 {
> pinctrl-names = "default";
> pinctrl-0 = <&lan9221_pins>;
> interrupt-parent = <&gpio5>;
> diff --git a/arch/arm/boot/dts/omap-gpmc-smsc911x.dtsi b/arch/arm/boot/dts/omap-gpmc-smsc911x.dtsi
> index ded7e8fec9eb..2a462cb65a7d 100644
> --- a/arch/arm/boot/dts/omap-gpmc-smsc911x.dtsi
> +++ b/arch/arm/boot/dts/omap-gpmc-smsc911x.dtsi
> @@ -20,36 +20,34 @@
> };
> };
>
> -&gpmc {
> - ethernet@gpmc {
> - compatible = "smsc,lan9221", "smsc,lan9115";
> - bank-width = <2>;
> - gpmc,device-width = <1>;
> - gpmc,cycle2cycle-samecsen = <1>;
> - gpmc,cycle2cycle-diffcsen = <1>;
> - gpmc,cs-on-ns = <5>;
> - gpmc,cs-rd-off-ns = <150>;
> - gpmc,cs-wr-off-ns = <150>;
> - gpmc,adv-on-ns = <0>;
> - gpmc,adv-rd-off-ns = <15>;
> - gpmc,adv-wr-off-ns = <40>;
> - gpmc,oe-on-ns = <45>;
> - gpmc,oe-off-ns = <140>;
> - gpmc,we-on-ns = <45>;
> - gpmc,we-off-ns = <140>;
> - gpmc,rd-cycle-ns = <155>;
> - gpmc,wr-cycle-ns = <155>;
> - gpmc,access-ns = <120>;
> - gpmc,page-burst-access-ns = <20>;
> - gpmc,bus-turnaround-ns = <75>;
> - gpmc,cycle2cycle-delay-ns = <75>;
> - gpmc,wait-monitoring-ns = <0>;
> - gpmc,clk-activation-ns = <0>;
> - gpmc,wr-data-mux-bus-ns = <0>;
> - gpmc,wr-access-ns = <0>;
> - vddvario-supply = <&vddvario>;
> - vdd33a-supply = <&vdd33a>;
> - reg-io-width = <4>;
> - smsc,save-mac-address;
> - };
> +&gpmc_ethernet {
The same comments as before - this is difficult to review because you
mix up indentation. First, override by label, then do the fixup (or vice
versa). You ignored the comment last time.
Best regards,
Krzysztof
^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: [PATCH v4 8/8] memory: gpmc-omap: "gpmc,device-width" DT property is optional
2021-09-14 12:27 ` [PATCH v4 8/8] memory: gpmc-omap: "gpmc,device-width" DT property is optional Roger Quadros
@ 2021-09-15 7:12 ` Krzysztof Kozlowski
2021-09-15 8:47 ` Roger Quadros
0 siblings, 1 reply; 21+ messages in thread
From: Krzysztof Kozlowski @ 2021-09-15 7:12 UTC (permalink / raw)
To: Roger Quadros, tony
Cc: robh+dt, grygorii.strashko, nm, lokeshvutla, nsekhar,
miquel.raynal, devicetree, linux-mtd, linux-omap, linux-kernel
On 14/09/2021 14:27, Roger Quadros wrote:
> Check for valid gpmc,device-width, nand-bus-width and bank-width
> at one place. Default to 8-bit width if none present.
>
> Signed-off-by: Roger Quadros <rogerq@kernel.org>
> ---
> drivers/memory/omap-gpmc.c | 41 ++++++++++++++++++++++++--------------
> 1 file changed, 26 insertions(+), 15 deletions(-)
>
All the comments from v3 are still applicable because it seems you
ignored them. Please respond to them.
It's the second patch where the reviewer's comments got lost, so it
creates rather poor impression.
Best regards,
Krzysztof
^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: [PATCH v4 7/8] dt-bindings: memory-controllers: ti,gpmc: Convert to yaml
2021-09-14 12:27 ` [PATCH v4 7/8] dt-bindings: memory-controllers: ti,gpmc: " Roger Quadros
@ 2021-09-15 7:20 ` Krzysztof Kozlowski
2021-10-07 8:03 ` Roger Quadros
2021-09-21 20:47 ` Rob Herring
1 sibling, 1 reply; 21+ messages in thread
From: Krzysztof Kozlowski @ 2021-09-15 7:20 UTC (permalink / raw)
To: Roger Quadros, tony
Cc: robh+dt, grygorii.strashko, nm, lokeshvutla, nsekhar,
miquel.raynal, devicetree, linux-mtd, linux-omap, linux-kernel
On 14/09/2021 14:27, Roger Quadros wrote:
> Convert omap-gpmc.txt to ti,gpmc.yaml.
>
> Signed-off-by: Roger Quadros <rogerq@kernel.org>
> ---
> .../bindings/memory-controllers/omap-gpmc.txt | 157 ----------------
> .../bindings/memory-controllers/ti,gpmc.yaml | 172 ++++++++++++++++++
> 2 files changed, 172 insertions(+), 157 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
> create mode 100644 Documentation/devicetree/bindings/memory-controllers/ti,gpmc.yaml
>
> diff --git a/Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt b/Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
> deleted file mode 100644
> index c1359f4d48d7..000000000000
> --- a/Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
> +++ /dev/null
> @@ -1,157 +0,0 @@
> -Device tree bindings for OMAP general purpose memory controllers (GPMC)
> -
> -The actual devices are instantiated from the child nodes of a GPMC node.
> -
> -Required properties:
> -
> - - compatible: Should be set to one of the following:
> -
> - ti,omap2420-gpmc (omap2420)
> - ti,omap2430-gpmc (omap2430)
> - ti,omap3430-gpmc (omap3430 & omap3630)
> - ti,omap4430-gpmc (omap4430 & omap4460 & omap543x)
> - ti,am3352-gpmc (am335x devices)
> -
> - - reg: A resource specifier for the register space
> - (see the example below)
> - - ti,hwmods: Should be set to "ti,gpmc" until the DT transition is
> - completed.
> - - #address-cells: Must be set to 2 to allow memory address translation
> - - #size-cells: Must be set to 1 to allow CS address passing
> - - gpmc,num-cs: The maximum number of chip-select lines that controller
> - can support.
> - - gpmc,num-waitpins: The maximum number of wait pins that controller can
> - support.
> - - ranges: Must be set up to reflect the memory layout with four
> - integer values for each chip-select line in use:
> -
> - <cs-number> 0 <physical address of mapping> <size>
> -
> - Currently, calculated values derived from the contents
> - of the per-CS register GPMC_CONFIG7 (as set up by the
> - bootloader) are used for the physical address decoding.
> - As this will change in the future, filling correct
> - values here is a requirement.
> - - interrupt-controller: The GPMC driver implements and interrupt controller for
> - the NAND events "fifoevent" and "termcount" plus the
> - rising/falling edges on the GPMC_WAIT pins.
> - The interrupt number mapping is as follows
> - 0 - NAND_fifoevent
> - 1 - NAND_termcount
> - 2 - GPMC_WAIT0 pin edge
> - 3 - GPMC_WAIT1 pin edge, and so on.
> - - interrupt-cells: Must be set to 2
> - - gpio-controller: The GPMC driver implements a GPIO controller for the
> - GPMC WAIT pins that can be used as general purpose inputs.
> - 0 maps to GPMC_WAIT0 pin.
> - - gpio-cells: Must be set to 2
> -
> -Required properties when using NAND prefetch dma:
> - - dmas GPMC NAND prefetch dma channel
> - - dma-names Must be set to "rxtx"
> -
> -Timing properties for child nodes. All are optional and default to 0.
> -
> - - gpmc,sync-clk-ps: Minimum clock period for synchronous mode, in picoseconds
> -
> - Chip-select signal timings (in nanoseconds) corresponding to GPMC_CONFIG2:
> - - gpmc,cs-on-ns: Assertion time
> - - gpmc,cs-rd-off-ns: Read deassertion time
> - - gpmc,cs-wr-off-ns: Write deassertion time
> -
> - ADV signal timings (in nanoseconds) corresponding to GPMC_CONFIG3:
> - - gpmc,adv-on-ns: Assertion time
> - - gpmc,adv-rd-off-ns: Read deassertion time
> - - gpmc,adv-wr-off-ns: Write deassertion time
> - - gpmc,adv-aad-mux-on-ns: Assertion time for AAD
> - - gpmc,adv-aad-mux-rd-off-ns: Read deassertion time for AAD
> - - gpmc,adv-aad-mux-wr-off-ns: Write deassertion time for AAD
> -
> - WE signals timings (in nanoseconds) corresponding to GPMC_CONFIG4:
> - - gpmc,we-on-ns Assertion time
> - - gpmc,we-off-ns: Deassertion time
> -
> - OE signals timings (in nanoseconds) corresponding to GPMC_CONFIG4:
> - - gpmc,oe-on-ns: Assertion time
> - - gpmc,oe-off-ns: Deassertion time
> - - gpmc,oe-aad-mux-on-ns: Assertion time for AAD
> - - gpmc,oe-aad-mux-off-ns: Deassertion time for AAD
> -
> - Access time and cycle time timings (in nanoseconds) corresponding to
> - GPMC_CONFIG5:
> - - gpmc,page-burst-access-ns: Multiple access word delay
> - - gpmc,access-ns: Start-cycle to first data valid delay
> - - gpmc,rd-cycle-ns: Total read cycle time
> - - gpmc,wr-cycle-ns: Total write cycle time
> - - gpmc,bus-turnaround-ns: Turn-around time between successive accesses
> - - gpmc,cycle2cycle-delay-ns: Delay between chip-select pulses
> - - gpmc,clk-activation-ns: GPMC clock activation time
> - - gpmc,wait-monitoring-ns: Start of wait monitoring with regard to valid
> - data
> -
> -Boolean timing parameters. If property is present parameter enabled and
> -disabled if omitted:
> - - gpmc,adv-extra-delay: ADV signal is delayed by half GPMC clock
> - - gpmc,cs-extra-delay: CS signal is delayed by half GPMC clock
> - - gpmc,cycle2cycle-diffcsen: Add "cycle2cycle-delay" between successive
> - accesses to a different CS
> - - gpmc,cycle2cycle-samecsen: Add "cycle2cycle-delay" between successive
> - accesses to the same CS
> - - gpmc,oe-extra-delay: OE signal is delayed by half GPMC clock
> - - gpmc,we-extra-delay: WE signal is delayed by half GPMC clock
> - - gpmc,time-para-granularity: Multiply all access times by 2
> -
> -The following are only applicable to OMAP3+ and AM335x:
> - - gpmc,wr-access-ns: In synchronous write mode, for single or
> - burst accesses, defines the number of
> - GPMC_FCLK cycles from start access time
> - to the GPMC_CLK rising edge used by the
> - memory device for the first data capture.
> - - gpmc,wr-data-mux-bus-ns: In address-data multiplex mode, specifies
> - the time when the first data is driven on
> - the address-data bus.
> -
> -GPMC chip-select settings properties for child nodes. All are optional.
> -
> -- gpmc,burst-length Page/burst length. Must be 4, 8 or 16.
> -- gpmc,burst-wrap Enables wrap bursting
> -- gpmc,burst-read Enables read page/burst mode
> -- gpmc,burst-write Enables write page/burst mode
> -- gpmc,device-width Total width of device(s) connected to a GPMC
> - chip-select in bytes. The GPMC supports 8-bit
> - and 16-bit devices and so this property must be
> - 1 or 2.
> -- gpmc,mux-add-data Address and data multiplexing configuration.
> - Valid values are 1 for address-address-data
> - multiplexing mode and 2 for address-data
> - multiplexing mode.
> -- gpmc,sync-read Enables synchronous read. Defaults to asynchronous
> - is this is not set.
> -- gpmc,sync-write Enables synchronous writes. Defaults to asynchronous
> - is this is not set.
> -- gpmc,wait-pin Wait-pin used by client. Must be less than
> - "gpmc,num-waitpins".
> -- gpmc,wait-on-read Enables wait monitoring on reads.
> -- gpmc,wait-on-write Enables wait monitoring on writes.
> -
> -Example for an AM33xx board:
> -
> - gpmc: gpmc@50000000 {
> - compatible = "ti,am3352-gpmc";
> - ti,hwmods = "gpmc";
> - reg = <0x50000000 0x2000>;
> - interrupts = <100>;
> - dmas = <&edma 52 0>;
> - dma-names = "rxtx";
> - gpmc,num-cs = <8>;
> - gpmc,num-waitpins = <2>;
> - #address-cells = <2>;
> - #size-cells = <1>;
> - ranges = <0 0 0x08000000 0x10000000>; /* CS0 @addr 0x8000000, size 0x10000000 */
> - interrupt-controller;
> - #interrupt-cells = <2>;
> - gpio-controller;
> - #gpio-cells = <2>;
> -
> - /* child nodes go here */
> - };
> diff --git a/Documentation/devicetree/bindings/memory-controllers/ti,gpmc.yaml b/Documentation/devicetree/bindings/memory-controllers/ti,gpmc.yaml
> new file mode 100644
> index 000000000000..d6cd39bd3940
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/memory-controllers/ti,gpmc.yaml
> @@ -0,0 +1,172 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/memory-controllers/ti,gpmc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Texas Instruments GPMC Memory Controller device-tree bindings
> +
> +maintainers:
> + - Tony Lindgren <tony@atomide.com>
> + - Roger Quadros <rogerq@kernel.org>
> +
> +description:
> + The GPMC is a unified memory controller dedicated for interfacing
> + with external memory devices like
> + - Asynchronous SRAM-like memories and ASICs
> + - Asynchronous, synchronous, and page mode burst NOR flash
> + - NAND flash
> + - Pseudo-SRAM devices
> +
> +properties:
> + compatible:
> + items:
> + - enum:
> + - ti,omap2420-gpmc
> + - ti,omap2430-gpmc
> + - ti,omap3430-gpmc
> + - ti,omap4430-gpmc
> + - ti,am3352-gpmc
How about putting them in alphabetical order?
> +
> + reg:
> + maxItems: 1
> +
> + interrupts:
> + maxItems: 1
> +
> + clocks:
> + maxItems: 1
> + description: |
> + Functional clock. Used for bus timing calculations and
> + GPMC configuration.
> +
> + clock-names:
> + items:
> + - const: fck
> +
> + dmas:
> + items:
> + - description: DMA channel for GPMC NAND prefetch
> +
> + dma-names:
> + items:
> + - const: rxtx
> +
> + "#address-cells": true
> +
> + "#size-cells": true
> +
> + gpmc,num-cs:
> + description: maximum number of supported chip-select lines.
> + $ref: /schemas/types.yaml#/definitions/uint32
> +
> + gpmc,num-waitpins:
> + description: maximum number of supported wait pins.
> + $ref: /schemas/types.yaml#/definitions/uint32
> +
> + ranges:
> + minItems: 1
> + description: |
> + Must be set up to reflect the memory layout with four
> + integer values for each chip-select line in use,
> + <cs-number> 0 <physical address of mapping> <size>
> + items:
> + - description: NAND bank 0
> + - description: NOR/SRAM bank 0
> + - description: NOR/SRAM bank 1
> +
> + '#interrupt-cells':
> + const: 2
> +
> + interrupt-controller:
> + description: |
> + The GPMC driver implements and interrupt controller for
> + the NAND events "fifoevent" and "termcount" plus the
> + rising/falling edges on the GPMC_WAIT pins.
> + The interrupt number mapping is as follows
> + 0 - NAND_fifoevent
> + 1 - NAND_termcount
> + 2 - GPMC_WAIT0 pin edge
> + 3 - GPMC_WAIT1 pin edge, and so on.
> +
> + '#gpio-cells':
> + const: 2
> +
> + gpio-controller:
> + description: |
> + The GPMC driver implements a GPIO controller for the
> + GPMC WAIT pins that can be used as general purpose inputs.
> + 0 maps to GPMC_WAIT0 pin.
> +
> + ti,hwmods:
> + description:
> + Name of the HWMOD associated with GPMC. This is for legacy
> + omap2/3 platforms only.
> + $ref: /schemas/types.yaml#/definitions/string
> + deprecated: true
> +
> + ti,no-idle-on-init:
> + description:
> + Prevent idling the module at init. This is for legacy omap2/3
> + platforms only.
> + type: boolean
> + deprecated: true
> +
> +patternProperties:
> + "@[0-7],[a-f0-9]+$":
> + type: object
> + description: |
> + The child device node represents the device connected to the GPMC
> + bus. The device can be a NAND chip, SRAM device, NOR device
> + or an ASIC.
> +
> + allOf:
> + - $ref: "ti,gpmc-child.yaml"
> +
> + unevaluatedProperties: false
> +
> +required:
> + - compatible
> + - reg
> + - gpmc,num-cs
> + - gpmc,num-waitpins
> + - "#address-cells"
> + - "#size-cells"
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/arm-gic.h>
> + #include <dt-bindings/gpio/gpio.h>
> +
> + gpmc: memory-controller@50000000 {
> + compatible = "ti,am3352-gpmc";
> + reg = <0x50000000 0x2000>;
> + interrupts = <100>;
> + clocks = <&l3s_clkctrl>;
> + clock-names = "fck";
> + dmas = <&edma 52 0>;
> + dma-names = "rxtx";
> + gpmc,num-cs = <8>;
> + gpmc,num-waitpins = <2>;
> + #address-cells = <2>;
> + #size-cells = <1>;
> + ranges = <0 0 0x08000000 0x10000000>; /* CS0 @addr 0x8000000, size 0x10000000 */
> + interrupt-controller;
> + #interrupt-cells = <2>;
> + gpio-controller;
> + #gpio-cells = <2>;
> +
> + nand@0,0 {
> + compatible = "ti,omap2-nand";
> + reg = <0 0 4>;
> + interrupt-parent = <&gpmc>;
> + interrupts = <0 IRQ_TYPE_NONE>, /* fifoevent */
> + <1 IRQ_TYPE_NONE>; /* termcount */
Why these are interrupts of unspecified type (NONE)?
> + ti,nand-xfer-type = "prefetch-dma";
> + ti,nand-ecc-opt = "bch16";
> + ti,elm-id = <&elm>;
> + rb-gpios = <&gpmc 0 GPIO_ACTIVE_HIGH>; /* gpmc_wait0 pin */
> + };
> + };
>
Best regards,
Krzysztof
^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: [PATCH v4 8/8] memory: gpmc-omap: "gpmc,device-width" DT property is optional
2021-09-15 7:12 ` Krzysztof Kozlowski
@ 2021-09-15 8:47 ` Roger Quadros
2021-09-15 9:05 ` Krzysztof Kozlowski
0 siblings, 1 reply; 21+ messages in thread
From: Roger Quadros @ 2021-09-15 8:47 UTC (permalink / raw)
To: Krzysztof Kozlowski, tony
Cc: robh+dt, grygorii.strashko, nm, lokeshvutla, nsekhar,
miquel.raynal, devicetree, linux-mtd, linux-omap, linux-kernel
Hi Krzysztof,
On 15/09/2021 10:12, Krzysztof Kozlowski wrote:
> On 14/09/2021 14:27, Roger Quadros wrote:
>> Check for valid gpmc,device-width, nand-bus-width and bank-width
>> at one place. Default to 8-bit width if none present.
>>
>> Signed-off-by: Roger Quadros <rogerq@kernel.org>
>> ---
>> drivers/memory/omap-gpmc.c | 41 ++++++++++++++++++++++++--------------
>> 1 file changed, 26 insertions(+), 15 deletions(-)
>>
>
> All the comments from v3 are still applicable because it seems you
> ignored them. Please respond to them.
>
> It's the second patch where the reviewer's comments got lost, so it
> creates rather poor impression.
I was wondering what comments and then realized that gmail server has put
all your messages into spam folder.
I'm very sorry about that. I will address your comments ASAP.
cheers,
-roger
^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: [PATCH v4 8/8] memory: gpmc-omap: "gpmc,device-width" DT property is optional
2021-09-15 8:47 ` Roger Quadros
@ 2021-09-15 9:05 ` Krzysztof Kozlowski
0 siblings, 0 replies; 21+ messages in thread
From: Krzysztof Kozlowski @ 2021-09-15 9:05 UTC (permalink / raw)
To: Roger Quadros, tony
Cc: robh+dt, grygorii.strashko, nm, lokeshvutla, nsekhar,
miquel.raynal, devicetree, linux-mtd, linux-omap, linux-kernel
On 15/09/2021 10:47, Roger Quadros wrote:
> Hi Krzysztof,
>
> On 15/09/2021 10:12, Krzysztof Kozlowski wrote:
>> On 14/09/2021 14:27, Roger Quadros wrote:
>>> Check for valid gpmc,device-width, nand-bus-width and bank-width
>>> at one place. Default to 8-bit width if none present.
>>>
>>> Signed-off-by: Roger Quadros <rogerq@kernel.org>
>>> ---
>>> drivers/memory/omap-gpmc.c | 41 ++++++++++++++++++++++++--------------
>>> 1 file changed, 26 insertions(+), 15 deletions(-)
>>>
>>
>> All the comments from v3 are still applicable because it seems you
>> ignored them. Please respond to them.
>>
>> It's the second patch where the reviewer's comments got lost, so it
>> creates rather poor impression.
>
> I was wondering what comments and then realized that gmail server has put
> all your messages into spam folder.
>
> I'm very sorry about that. I will address your comments ASAP.
Oops. There were just two emails from me for v3. Can you send me
(privately) the headers from my emails so I can investigate why they
ended up on Spam?
Best regards,
Krzysztof
^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: [PATCH v4 2/8] dt-bindings: mtd: Remove gpmc-nor.txt
2021-09-14 12:26 ` [PATCH v4 2/8] dt-bindings: mtd: Remove gpmc-nor.txt Roger Quadros
@ 2021-09-21 20:38 ` Rob Herring
0 siblings, 0 replies; 21+ messages in thread
From: Rob Herring @ 2021-09-21 20:38 UTC (permalink / raw)
To: Roger Quadros
Cc: devicetree, linux-mtd, krzysztof.kozlowski, tony, lokeshvutla,
nm, linux-omap, grygorii.strashko, miquel.raynal, nsekhar,
linux-kernel, robh+dt
On Tue, 14 Sep 2021 15:26:59 +0300, Roger Quadros wrote:
> There is no GPMC NOR compatible or device driver. GPMC is just
> a bus interface over which standard (CFI/JEDC) NOR Flash chips
> can be attached.
>
> For NOR chip bindings, please refer to
> Documentation/devicetree/bindings/mtd/mtd-physmap.yaml
>
> Signed-off-by: Roger Quadros <rogerq@kernel.org>
> ---
> .../devicetree/bindings/mtd/gpmc-nor.txt | 98 -------------------
> 1 file changed, 98 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/mtd/gpmc-nor.txt
>
Acked-by: Rob Herring <robh@kernel.org>
^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: [PATCH v4 3/8] dt-bindings: net: Remove gpmc-eth.txt
2021-09-14 12:27 ` [PATCH v4 3/8] dt-bindings: net: Remove gpmc-eth.txt Roger Quadros
@ 2021-09-21 20:38 ` Rob Herring
0 siblings, 0 replies; 21+ messages in thread
From: Rob Herring @ 2021-09-21 20:38 UTC (permalink / raw)
To: Roger Quadros
Cc: krzysztof.kozlowski, devicetree, robh+dt, miquel.raynal,
linux-omap, grygorii.strashko, tony, nm, linux-mtd, nsekhar,
linux-kernel, lokeshvutla
On Tue, 14 Sep 2021 15:27:00 +0300, Roger Quadros wrote:
> There is no GPMC Ethernet compatible or device driver. GPMC is
> just a bus interface over which devices like Ethernet controller
> can be to.
>
> For SMSC 911x Ethernet chip bindings, please refer to
> Documentation/devicetree/bindings/net/smsc,lan9115.yaml
>
> Signed-off-by: Roger Quadros <rogerq@kernel.org>
> ---
> .../devicetree/bindings/net/gpmc-eth.txt | 97 -------------------
> 1 file changed, 97 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/net/gpmc-eth.txt
>
Acked-by: Rob Herring <robh@kernel.org>
^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: [PATCH v4 4/8] dt-bindings: memory-controllers: Introduce ti,gpmc-child
2021-09-14 12:27 ` [PATCH v4 4/8] dt-bindings: memory-controllers: Introduce ti,gpmc-child Roger Quadros
@ 2021-09-21 20:40 ` Rob Herring
0 siblings, 0 replies; 21+ messages in thread
From: Rob Herring @ 2021-09-21 20:40 UTC (permalink / raw)
To: Roger Quadros
Cc: krzysztof.kozlowski, nm, linux-kernel, devicetree, nsekhar,
linux-omap, robh+dt, miquel.raynal, linux-mtd, lokeshvutla,
grygorii.strashko, tony
On Tue, 14 Sep 2021 15:27:01 +0300, Roger Quadros wrote:
> This binding is meant for the child nodes of the TI GPMC node. The node
> represents any device connected to the GPMC bus. It may be a Flash chip,
> RAM chip or Ethernet controller, etc. These properties are meant for
> configuring the GPMC settings/timings and will accompany the bindings
> supported by the respective device.
>
> Signed-off-by: Roger Quadros <rogerq@kernel.org>
> ---
> .../memory-controllers/ti,gpmc-child.yaml | 245 ++++++++++++++++++
> 1 file changed, 245 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/memory-controllers/ti,gpmc-child.yaml
>
Reviewed-by: Rob Herring <robh@kernel.org>
^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: [PATCH v4 5/8] dt-bindings: mtd: ti,gpmc-nand: Convert to yaml
2021-09-14 12:27 ` [PATCH v4 5/8] dt-bindings: mtd: ti,gpmc-nand: Convert to yaml Roger Quadros
@ 2021-09-21 20:43 ` Rob Herring
0 siblings, 0 replies; 21+ messages in thread
From: Rob Herring @ 2021-09-21 20:43 UTC (permalink / raw)
To: Roger Quadros
Cc: linux-mtd, devicetree, nsekhar, krzysztof.kozlowski, nm,
linux-kernel, tony, robh+dt, miquel.raynal, grygorii.strashko,
lokeshvutla, linux-omap
On Tue, 14 Sep 2021 15:27:02 +0300, Roger Quadros wrote:
> Convert gpmc-nand.txt to ti,gpmc-nand.yaml.
>
> Signed-off-by: Roger Quadros <rogerq@kernel.org>
> ---
> .../devicetree/bindings/mtd/gpmc-nand.txt | 147 ------------------
> .../devicetree/bindings/mtd/ti,gpmc-nand.yaml | 121 ++++++++++++++
> 2 files changed, 121 insertions(+), 147 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/mtd/gpmc-nand.txt
> create mode 100644 Documentation/devicetree/bindings/mtd/ti,gpmc-nand.yaml
>
Reviewed-by: Rob Herring <robh@kernel.org>
^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: [PATCH v4 6/8] dt-bindings: mtd: ti,gpmc-onenand: Convert to yaml
2021-09-14 12:27 ` [PATCH v4 6/8] dt-bindings: mtd: ti,gpmc-onenand: " Roger Quadros
@ 2021-09-21 20:45 ` Rob Herring
0 siblings, 0 replies; 21+ messages in thread
From: Rob Herring @ 2021-09-21 20:45 UTC (permalink / raw)
To: Roger Quadros
Cc: tony, grygorii.strashko, nm, lokeshvutla, nsekhar,
krzysztof.kozlowski, miquel.raynal, devicetree, linux-mtd,
linux-omap, linux-kernel
On Tue, Sep 14, 2021 at 03:27:03PM +0300, Roger Quadros wrote:
> Convert gpmc-onenand.txt to ti,gpmc-onenand.yaml.
>
> Signed-off-by: Roger Quadros <rogerq@kernel.org>
> ---
> .../devicetree/bindings/mtd/gpmc-onenand.txt | 48 -----------
> .../bindings/mtd/ti,gpmc-onenand.yaml | 81 +++++++++++++++++++
> 2 files changed, 81 insertions(+), 48 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/mtd/gpmc-onenand.txt
> create mode 100644 Documentation/devicetree/bindings/mtd/ti,gpmc-onenand.yaml
>
> diff --git a/Documentation/devicetree/bindings/mtd/gpmc-onenand.txt b/Documentation/devicetree/bindings/mtd/gpmc-onenand.txt
> deleted file mode 100644
> index e9f01a963a0a..000000000000
> --- a/Documentation/devicetree/bindings/mtd/gpmc-onenand.txt
> +++ /dev/null
> @@ -1,48 +0,0 @@
> -Device tree bindings for GPMC connected OneNANDs
> -
> -GPMC connected OneNAND (found on OMAP boards) are represented as child nodes of
> -the GPMC controller with a name of "onenand".
> -
> -All timing relevant properties as well as generic gpmc child properties are
> -explained in a separate documents - please refer to
> -Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
> -
> -Required properties:
> -
> - - compatible: "ti,omap2-onenand"
> - - reg: The CS line the peripheral is connected to
> - - gpmc,device-width: Width of the ONENAND device connected to the GPMC
> - in bytes. Must be 1 or 2.
> -
> -Optional properties:
> -
> - - int-gpios: GPIO specifier for the INT pin.
> -
> -For inline partition table parsing (optional):
> -
> - - #address-cells: should be set to 1
> - - #size-cells: should be set to 1
> -
> -Example for an OMAP3430 board:
> -
> - gpmc: gpmc@6e000000 {
> - compatible = "ti,omap3430-gpmc";
> - ti,hwmods = "gpmc";
> - reg = <0x6e000000 0x1000000>;
> - interrupts = <20>;
> - gpmc,num-cs = <8>;
> - gpmc,num-waitpins = <4>;
> - #address-cells = <2>;
> - #size-cells = <1>;
> -
> - onenand@0 {
> - compatible = "ti,omap2-onenand";
> - reg = <0 0 0>; /* CS0, offset 0 */
> - gpmc,device-width = <2>;
> -
> - #address-cells = <1>;
> - #size-cells = <1>;
> -
> - /* partitions go here */
> - };
> - };
> diff --git a/Documentation/devicetree/bindings/mtd/ti,gpmc-onenand.yaml b/Documentation/devicetree/bindings/mtd/ti,gpmc-onenand.yaml
> new file mode 100644
> index 000000000000..42149a9c3a8d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mtd/ti,gpmc-onenand.yaml
> @@ -0,0 +1,81 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mtd/ti,gpmc-onenand.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: OneNAND over Texas Instruments GPMC bus.
> +
> +maintainers:
> + - Tony Lindgren <tony@atomide.com>
> + - Roger Quadros <rogerq@kernel.org>
> +
> +description:
> + GPMC connected OneNAND (found on OMAP boards) are represented
> + as child nodes of the GPMC controller.
> +
> +properties:
> + compatible:
> + const: ti,omap2-onenand
> +
> + reg:
> + items:
> + - description: |
> + Chip Select number, register offset and size of
> + OneNAND register window.
> +
> + "#address-cells": true
> +
> + "#size-cells": true
> +
> + int-gpios:
> + description: GPIO specifier for the INT pin.
> +
> +patternProperties:
> + "@[0-9a-f]+$":
> + $ref: "/schemas/mtd/partitions/partition.yaml"
> +
> +allOf:
> + - $ref: "/schemas/memory-controllers/ti,gpmc-child.yaml"
> +
> +required:
> + - compatible
> + - reg
> + - "#address-cells"
> + - "#size-cells"
> +
> +unevaluatedProperties: false
> +
> +examples:
> + - |
> + gpmc: memory-controller@6e000000 {
> + compatible = "ti,omap3430-gpmc";
> + reg = <0x6e000000 0x02d0>;
> + interrupts = <20>;
> + gpmc,num-cs = <8>;
> + gpmc,num-waitpins = <4>;
> + clocks = <&l3s_clkctrl>;
> + clock-names = "fck";
> + #address-cells = <2>;
> + #size-cells = <1>;
> +
> + ranges = <0 0 0x01000000 0x01000000>, /* 16 MB for OneNAND */
> + <1 0 0x02000000 0x01000000>; /* 16 MB for smc91c96 */
> +
> + onenand@0,0 {
> + compatible = "ti,omap2-onenand";
> + reg = <0 0 0x20000>; /* CS0, offset 0, IO size 128K */
> + #address-cells = <1>;
> + #size-cells = <1>;
> +
> + partition@0 {
> + label = "bootloader";
> + reg = <0x00000000 0x00100000>;
> + };
> +
> + partition@1 {
partition@100000
With that,
Reviewed-by: Rob Herring <robh@kernel.org>
> + label = "config";
> + reg = <0x00100000 0x002c0000>;
> + };
> + };
> + };
> --
> 2.17.1
>
>
^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: [PATCH v4 7/8] dt-bindings: memory-controllers: ti,gpmc: Convert to yaml
2021-09-14 12:27 ` [PATCH v4 7/8] dt-bindings: memory-controllers: ti,gpmc: " Roger Quadros
2021-09-15 7:20 ` Krzysztof Kozlowski
@ 2021-09-21 20:47 ` Rob Herring
1 sibling, 0 replies; 21+ messages in thread
From: Rob Herring @ 2021-09-21 20:47 UTC (permalink / raw)
To: Roger Quadros
Cc: grygorii.strashko, linux-omap, devicetree, nsekhar, tony,
linux-kernel, miquel.raynal, krzysztof.kozlowski, robh+dt,
linux-mtd, lokeshvutla, nm
On Tue, 14 Sep 2021 15:27:04 +0300, Roger Quadros wrote:
> Convert omap-gpmc.txt to ti,gpmc.yaml.
>
> Signed-off-by: Roger Quadros <rogerq@kernel.org>
> ---
> .../bindings/memory-controllers/omap-gpmc.txt | 157 ----------------
> .../bindings/memory-controllers/ti,gpmc.yaml | 172 ++++++++++++++++++
> 2 files changed, 172 insertions(+), 157 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
> create mode 100644 Documentation/devicetree/bindings/memory-controllers/ti,gpmc.yaml
>
Reviewed-by: Rob Herring <robh@kernel.org>
^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: [PATCH v4 7/8] dt-bindings: memory-controllers: ti,gpmc: Convert to yaml
2021-09-15 7:20 ` Krzysztof Kozlowski
@ 2021-10-07 8:03 ` Roger Quadros
0 siblings, 0 replies; 21+ messages in thread
From: Roger Quadros @ 2021-10-07 8:03 UTC (permalink / raw)
To: Krzysztof Kozlowski, tony
Cc: robh+dt, grygorii.strashko, nm, lokeshvutla, nsekhar,
miquel.raynal, devicetree, linux-mtd, linux-omap, linux-kernel
Hi Krzysztof,
On 15/09/2021 10:20, Krzysztof Kozlowski wrote:
> On 14/09/2021 14:27, Roger Quadros wrote:
>> Convert omap-gpmc.txt to ti,gpmc.yaml.
>>
>> Signed-off-by: Roger Quadros <rogerq@kernel.org>
>> ---
>> .../bindings/memory-controllers/omap-gpmc.txt | 157 ----------------
>> .../bindings/memory-controllers/ti,gpmc.yaml | 172 ++++++++++++++++++
>> 2 files changed, 172 insertions(+), 157 deletions(-)
>> delete mode 100644 Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
>> create mode 100644 Documentation/devicetree/bindings/memory-controllers/ti,gpmc.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt b/Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
>> deleted file mode 100644
>> index c1359f4d48d7..000000000000
>> --- a/Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
>> +++ /dev/null
>> @@ -1,157 +0,0 @@
>> -Device tree bindings for OMAP general purpose memory controllers (GPMC)
>> -
>> -The actual devices are instantiated from the child nodes of a GPMC node.
>> -
>> -Required properties:
>> -
>> - - compatible: Should be set to one of the following:
>> -
>> - ti,omap2420-gpmc (omap2420)
>> - ti,omap2430-gpmc (omap2430)
>> - ti,omap3430-gpmc (omap3430 & omap3630)
>> - ti,omap4430-gpmc (omap4430 & omap4460 & omap543x)
>> - ti,am3352-gpmc (am335x devices)
>> -
>> - - reg: A resource specifier for the register space
>> - (see the example below)
>> - - ti,hwmods: Should be set to "ti,gpmc" until the DT transition is
>> - completed.
>> - - #address-cells: Must be set to 2 to allow memory address translation
>> - - #size-cells: Must be set to 1 to allow CS address passing
>> - - gpmc,num-cs: The maximum number of chip-select lines that controller
>> - can support.
>> - - gpmc,num-waitpins: The maximum number of wait pins that controller can
>> - support.
>> - - ranges: Must be set up to reflect the memory layout with four
>> - integer values for each chip-select line in use:
>> -
>> - <cs-number> 0 <physical address of mapping> <size>
>> -
>> - Currently, calculated values derived from the contents
>> - of the per-CS register GPMC_CONFIG7 (as set up by the
>> - bootloader) are used for the physical address decoding.
>> - As this will change in the future, filling correct
>> - values here is a requirement.
>> - - interrupt-controller: The GPMC driver implements and interrupt controller for
>> - the NAND events "fifoevent" and "termcount" plus the
>> - rising/falling edges on the GPMC_WAIT pins.
>> - The interrupt number mapping is as follows
>> - 0 - NAND_fifoevent
>> - 1 - NAND_termcount
>> - 2 - GPMC_WAIT0 pin edge
>> - 3 - GPMC_WAIT1 pin edge, and so on.
>> - - interrupt-cells: Must be set to 2
>> - - gpio-controller: The GPMC driver implements a GPIO controller for the
>> - GPMC WAIT pins that can be used as general purpose inputs.
>> - 0 maps to GPMC_WAIT0 pin.
>> - - gpio-cells: Must be set to 2
>> -
>> -Required properties when using NAND prefetch dma:
>> - - dmas GPMC NAND prefetch dma channel
>> - - dma-names Must be set to "rxtx"
>> -
>> -Timing properties for child nodes. All are optional and default to 0.
>> -
>> - - gpmc,sync-clk-ps: Minimum clock period for synchronous mode, in picoseconds
>> -
>> - Chip-select signal timings (in nanoseconds) corresponding to GPMC_CONFIG2:
>> - - gpmc,cs-on-ns: Assertion time
>> - - gpmc,cs-rd-off-ns: Read deassertion time
>> - - gpmc,cs-wr-off-ns: Write deassertion time
>> -
>> - ADV signal timings (in nanoseconds) corresponding to GPMC_CONFIG3:
>> - - gpmc,adv-on-ns: Assertion time
>> - - gpmc,adv-rd-off-ns: Read deassertion time
>> - - gpmc,adv-wr-off-ns: Write deassertion time
>> - - gpmc,adv-aad-mux-on-ns: Assertion time for AAD
>> - - gpmc,adv-aad-mux-rd-off-ns: Read deassertion time for AAD
>> - - gpmc,adv-aad-mux-wr-off-ns: Write deassertion time for AAD
>> -
>> - WE signals timings (in nanoseconds) corresponding to GPMC_CONFIG4:
>> - - gpmc,we-on-ns Assertion time
>> - - gpmc,we-off-ns: Deassertion time
>> -
>> - OE signals timings (in nanoseconds) corresponding to GPMC_CONFIG4:
>> - - gpmc,oe-on-ns: Assertion time
>> - - gpmc,oe-off-ns: Deassertion time
>> - - gpmc,oe-aad-mux-on-ns: Assertion time for AAD
>> - - gpmc,oe-aad-mux-off-ns: Deassertion time for AAD
>> -
>> - Access time and cycle time timings (in nanoseconds) corresponding to
>> - GPMC_CONFIG5:
>> - - gpmc,page-burst-access-ns: Multiple access word delay
>> - - gpmc,access-ns: Start-cycle to first data valid delay
>> - - gpmc,rd-cycle-ns: Total read cycle time
>> - - gpmc,wr-cycle-ns: Total write cycle time
>> - - gpmc,bus-turnaround-ns: Turn-around time between successive accesses
>> - - gpmc,cycle2cycle-delay-ns: Delay between chip-select pulses
>> - - gpmc,clk-activation-ns: GPMC clock activation time
>> - - gpmc,wait-monitoring-ns: Start of wait monitoring with regard to valid
>> - data
>> -
>> -Boolean timing parameters. If property is present parameter enabled and
>> -disabled if omitted:
>> - - gpmc,adv-extra-delay: ADV signal is delayed by half GPMC clock
>> - - gpmc,cs-extra-delay: CS signal is delayed by half GPMC clock
>> - - gpmc,cycle2cycle-diffcsen: Add "cycle2cycle-delay" between successive
>> - accesses to a different CS
>> - - gpmc,cycle2cycle-samecsen: Add "cycle2cycle-delay" between successive
>> - accesses to the same CS
>> - - gpmc,oe-extra-delay: OE signal is delayed by half GPMC clock
>> - - gpmc,we-extra-delay: WE signal is delayed by half GPMC clock
>> - - gpmc,time-para-granularity: Multiply all access times by 2
>> -
>> -The following are only applicable to OMAP3+ and AM335x:
>> - - gpmc,wr-access-ns: In synchronous write mode, for single or
>> - burst accesses, defines the number of
>> - GPMC_FCLK cycles from start access time
>> - to the GPMC_CLK rising edge used by the
>> - memory device for the first data capture.
>> - - gpmc,wr-data-mux-bus-ns: In address-data multiplex mode, specifies
>> - the time when the first data is driven on
>> - the address-data bus.
>> -
>> -GPMC chip-select settings properties for child nodes. All are optional.
>> -
>> -- gpmc,burst-length Page/burst length. Must be 4, 8 or 16.
>> -- gpmc,burst-wrap Enables wrap bursting
>> -- gpmc,burst-read Enables read page/burst mode
>> -- gpmc,burst-write Enables write page/burst mode
>> -- gpmc,device-width Total width of device(s) connected to a GPMC
>> - chip-select in bytes. The GPMC supports 8-bit
>> - and 16-bit devices and so this property must be
>> - 1 or 2.
>> -- gpmc,mux-add-data Address and data multiplexing configuration.
>> - Valid values are 1 for address-address-data
>> - multiplexing mode and 2 for address-data
>> - multiplexing mode.
>> -- gpmc,sync-read Enables synchronous read. Defaults to asynchronous
>> - is this is not set.
>> -- gpmc,sync-write Enables synchronous writes. Defaults to asynchronous
>> - is this is not set.
>> -- gpmc,wait-pin Wait-pin used by client. Must be less than
>> - "gpmc,num-waitpins".
>> -- gpmc,wait-on-read Enables wait monitoring on reads.
>> -- gpmc,wait-on-write Enables wait monitoring on writes.
>> -
>> -Example for an AM33xx board:
>> -
>> - gpmc: gpmc@50000000 {
>> - compatible = "ti,am3352-gpmc";
>> - ti,hwmods = "gpmc";
>> - reg = <0x50000000 0x2000>;
>> - interrupts = <100>;
>> - dmas = <&edma 52 0>;
>> - dma-names = "rxtx";
>> - gpmc,num-cs = <8>;
>> - gpmc,num-waitpins = <2>;
>> - #address-cells = <2>;
>> - #size-cells = <1>;
>> - ranges = <0 0 0x08000000 0x10000000>; /* CS0 @addr 0x8000000, size 0x10000000 */
>> - interrupt-controller;
>> - #interrupt-cells = <2>;
>> - gpio-controller;
>> - #gpio-cells = <2>;
>> -
>> - /* child nodes go here */
>> - };
>> diff --git a/Documentation/devicetree/bindings/memory-controllers/ti,gpmc.yaml b/Documentation/devicetree/bindings/memory-controllers/ti,gpmc.yaml
>> new file mode 100644
>> index 000000000000..d6cd39bd3940
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/memory-controllers/ti,gpmc.yaml
>> @@ -0,0 +1,172 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/memory-controllers/ti,gpmc.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Texas Instruments GPMC Memory Controller device-tree bindings
>> +
>> +maintainers:
>> + - Tony Lindgren <tony@atomide.com>
>> + - Roger Quadros <rogerq@kernel.org>
>> +
>> +description:
>> + The GPMC is a unified memory controller dedicated for interfacing
>> + with external memory devices like
>> + - Asynchronous SRAM-like memories and ASICs
>> + - Asynchronous, synchronous, and page mode burst NOR flash
>> + - NAND flash
>> + - Pseudo-SRAM devices
>> +
>> +properties:
>> + compatible:
>> + items:
>> + - enum:
>> + - ti,omap2420-gpmc
>> + - ti,omap2430-gpmc
>> + - ti,omap3430-gpmc
>> + - ti,omap4430-gpmc
>> + - ti,am3352-gpmc
>
> How about putting them in alphabetical order?
OK.
>
>> +
>> + reg:
>> + maxItems: 1
>> +
>> + interrupts:
>> + maxItems: 1
>> +
>> + clocks:
>> + maxItems: 1
>> + description: |
>> + Functional clock. Used for bus timing calculations and
>> + GPMC configuration.
>> +
>> + clock-names:
>> + items:
>> + - const: fck
>> +
>> + dmas:
>> + items:
>> + - description: DMA channel for GPMC NAND prefetch
>> +
>> + dma-names:
>> + items:
>> + - const: rxtx
>> +
>> + "#address-cells": true
>> +
>> + "#size-cells": true
>> +
>> + gpmc,num-cs:
>> + description: maximum number of supported chip-select lines.
>> + $ref: /schemas/types.yaml#/definitions/uint32
>> +
>> + gpmc,num-waitpins:
>> + description: maximum number of supported wait pins.
>> + $ref: /schemas/types.yaml#/definitions/uint32
>> +
>> + ranges:
>> + minItems: 1
>> + description: |
>> + Must be set up to reflect the memory layout with four
>> + integer values for each chip-select line in use,
>> + <cs-number> 0 <physical address of mapping> <size>
>> + items:
>> + - description: NAND bank 0
>> + - description: NOR/SRAM bank 0
>> + - description: NOR/SRAM bank 1
>> +
>> + '#interrupt-cells':
>> + const: 2
>> +
>> + interrupt-controller:
>> + description: |
>> + The GPMC driver implements and interrupt controller for
>> + the NAND events "fifoevent" and "termcount" plus the
>> + rising/falling edges on the GPMC_WAIT pins.
>> + The interrupt number mapping is as follows
>> + 0 - NAND_fifoevent
>> + 1 - NAND_termcount
>> + 2 - GPMC_WAIT0 pin edge
>> + 3 - GPMC_WAIT1 pin edge, and so on.
>> +
>> + '#gpio-cells':
>> + const: 2
>> +
>> + gpio-controller:
>> + description: |
>> + The GPMC driver implements a GPIO controller for the
>> + GPMC WAIT pins that can be used as general purpose inputs.
>> + 0 maps to GPMC_WAIT0 pin.
>> +
>> + ti,hwmods:
>> + description:
>> + Name of the HWMOD associated with GPMC. This is for legacy
>> + omap2/3 platforms only.
>> + $ref: /schemas/types.yaml#/definitions/string
>> + deprecated: true
>> +
>> + ti,no-idle-on-init:
>> + description:
>> + Prevent idling the module at init. This is for legacy omap2/3
>> + platforms only.
>> + type: boolean
>> + deprecated: true
>> +
>> +patternProperties:
>> + "@[0-7],[a-f0-9]+$":
>> + type: object
>> + description: |
>> + The child device node represents the device connected to the GPMC
>> + bus. The device can be a NAND chip, SRAM device, NOR device
>> + or an ASIC.
>> +
>> + allOf:
>> + - $ref: "ti,gpmc-child.yaml"
>> +
>> + unevaluatedProperties: false
>> +
>> +required:
>> + - compatible
>> + - reg
>> + - gpmc,num-cs
>> + - gpmc,num-waitpins
>> + - "#address-cells"
>> + - "#size-cells"
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> + - |
>> + #include <dt-bindings/interrupt-controller/arm-gic.h>
>> + #include <dt-bindings/gpio/gpio.h>
>> +
>> + gpmc: memory-controller@50000000 {
>> + compatible = "ti,am3352-gpmc";
>> + reg = <0x50000000 0x2000>;
>> + interrupts = <100>;
>> + clocks = <&l3s_clkctrl>;
>> + clock-names = "fck";
>> + dmas = <&edma 52 0>;
>> + dma-names = "rxtx";
>> + gpmc,num-cs = <8>;
>> + gpmc,num-waitpins = <2>;
>> + #address-cells = <2>;
>> + #size-cells = <1>;
>> + ranges = <0 0 0x08000000 0x10000000>; /* CS0 @addr 0x8000000, size 0x10000000 */
>> + interrupt-controller;
>> + #interrupt-cells = <2>;
>> + gpio-controller;
>> + #gpio-cells = <2>;
>> +
>> + nand@0,0 {
>> + compatible = "ti,omap2-nand";
>> + reg = <0 0 4>;
>> + interrupt-parent = <&gpmc>;
>> + interrupts = <0 IRQ_TYPE_NONE>, /* fifoevent */
>> + <1 IRQ_TYPE_NONE>; /* termcount */
>
> Why these are interrupts of unspecified type (NONE)?
These are not external interrupt pins but internal to the SoC.
So they don't have any meaning for rising/falling edge or low/high level.
>
>> + ti,nand-xfer-type = "prefetch-dma";
>> + ti,nand-ecc-opt = "bch16";
>> + ti,elm-id = <&elm>;
>> + rb-gpios = <&gpmc 0 GPIO_ACTIVE_HIGH>; /* gpmc_wait0 pin */
>> + };
>> + };
>>
>
>
> Best regards,
> Krzysztof
>
cheers,
-roger
^ permalink raw reply [flat|nested] 21+ messages in thread
end of thread, other threads:[~2021-10-07 8:03 UTC | newest]
Thread overview: 21+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-09-14 12:26 [PATCH v4 0/8] dt-bindings: memory-controllers: ti,gpmc: Convert to yaml Roger Quadros
2021-09-14 12:26 ` [PATCH v4 1/8] ARM: dts: omap: Fixup GPMC child nodes Roger Quadros
2021-09-15 6:53 ` Krzysztof Kozlowski
2021-09-14 12:26 ` [PATCH v4 2/8] dt-bindings: mtd: Remove gpmc-nor.txt Roger Quadros
2021-09-21 20:38 ` Rob Herring
2021-09-14 12:27 ` [PATCH v4 3/8] dt-bindings: net: Remove gpmc-eth.txt Roger Quadros
2021-09-21 20:38 ` Rob Herring
2021-09-14 12:27 ` [PATCH v4 4/8] dt-bindings: memory-controllers: Introduce ti,gpmc-child Roger Quadros
2021-09-21 20:40 ` Rob Herring
2021-09-14 12:27 ` [PATCH v4 5/8] dt-bindings: mtd: ti,gpmc-nand: Convert to yaml Roger Quadros
2021-09-21 20:43 ` Rob Herring
2021-09-14 12:27 ` [PATCH v4 6/8] dt-bindings: mtd: ti,gpmc-onenand: " Roger Quadros
2021-09-21 20:45 ` Rob Herring
2021-09-14 12:27 ` [PATCH v4 7/8] dt-bindings: memory-controllers: ti,gpmc: " Roger Quadros
2021-09-15 7:20 ` Krzysztof Kozlowski
2021-10-07 8:03 ` Roger Quadros
2021-09-21 20:47 ` Rob Herring
2021-09-14 12:27 ` [PATCH v4 8/8] memory: gpmc-omap: "gpmc,device-width" DT property is optional Roger Quadros
2021-09-15 7:12 ` Krzysztof Kozlowski
2021-09-15 8:47 ` Roger Quadros
2021-09-15 9:05 ` Krzysztof Kozlowski
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