[U-Boot] [PATCH 0/5] dm: gpio: add BMIPS gpio support

[U-Boot] [PATCH 0/5] dm: gpio: add BMIPS gpio support

[Álvaro Fernández Rojas]

Broadcom MIPS SoCs have one or two GPIO banks, depending on the number of
gpios present:
BCM6345 => 16 GPIOs / 1 bank
BCM6328 => 32 GPIOs / 1 bank
BCM6358 => 40 GPIOs / 2 banks
BCM63268 => 52 GPIOs / 2 banks

typedef struct GpioControl {
	uint32 GPIODirHi;	/* 0 */
	uint32 GPIODir;		/* 4 */
	uint32 GPIOioHi;	/* 8 */
	uint32 GPIOio;		/* C */
}

Álvaro Fernández Rojas (5):
  dm: gpio: add BCM6345 gpio driver
  mips: bmips: add bcm6345-gpio driver support for BCM6358
  mips: bmips: add bcm6345-gpio driver support for BCM6328
  mips: bmips: add bcm6345-gpio driver support for BCM63268
  mips: bmips: add Huawei HG556a gpio-leds

 arch/mips/dts/brcm,bcm63268.dtsi    |  19 ++++++
 arch/mips/dts/brcm,bcm6328.dtsi     |   9 +++
 arch/mips/dts/brcm,bcm6358.dtsi     |  19 ++++++
 arch/mips/dts/huawei,hg556a.dts     |  73 +++++++++++++++++++++
 configs/huawei_hg556a_ram_defconfig |   4 ++
 drivers/gpio/Kconfig                |   6 ++
 drivers/gpio/Makefile               |   1 +
 drivers/gpio/bcm6345_gpio.c         | 125 ++++++++++++++++++++++++++++++++++++
 8 files changed, 256 insertions(+)
 create mode 100644 drivers/gpio/bcm6345_gpio.c

-- 
2.1.4

[U-Boot] [PATCH 1/5] dm: gpio: add BCM6345 gpio driver

[Álvaro Fernández Rojas]

This driver is based on linux/arch/mips/bcm63xx/gpio.c, simplified to allow
defining one or two independent banks for each Broadcom SoC.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
---
 drivers/gpio/Kconfig        |   6 +++
 drivers/gpio/Makefile       |   1 +
 drivers/gpio/bcm6345_gpio.c | 125 ++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 132 insertions(+)
 create mode 100644 drivers/gpio/bcm6345_gpio.c

diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index c95e9ac..9f04061 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -21,6 +21,12 @@ config ALTERA_PIO
 	  Select this to enable PIO for Altera devices. Please find
 	  details on the "Embedded Peripherals IP User Guide" of Altera.
 
+config BCM6345_GPIO
+	bool "BCM6345 GPIO driver"
+	depends on DM_GPIO && ARCH_BMIPS
+	help
+	  This driver supports the GPIO banks on BCM6345 SoCs.
+
 config DWAPB_GPIO
 	bool "DWAPB GPIO driver"
 	depends on DM && DM_GPIO
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index 27f8068..0484428 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -16,6 +16,7 @@ obj-$(CONFIG_DM_74X164)		+= 74x164_gpio.o
 
 obj-$(CONFIG_AT91_GPIO)	+= at91_gpio.o
 obj-$(CONFIG_ATMEL_PIO4)	+= atmel_pio4.o
+obj-$(CONFIG_BCM6345_GPIO)	+= bcm6345_gpio.o
 obj-$(CONFIG_INTEL_ICH6_GPIO)	+= intel_ich6_gpio.o
 obj-$(CONFIG_INTEL_BROADWELL_GPIO)	+= intel_broadwell_gpio.o
 obj-$(CONFIG_KIRKWOOD_GPIO)	+= kw_gpio.o
diff --git a/drivers/gpio/bcm6345_gpio.c b/drivers/gpio/bcm6345_gpio.c
new file mode 100644
index 0000000..4a72eb9
--- /dev/null
+++ b/drivers/gpio/bcm6345_gpio.c
@@ -0,0 +1,125 @@
+/*
+ * Copyright (C) 2017 Álvaro Fernández Rojas <noltari@gmail.com>
+ *
+ * Derived from linux/arch/mips/bcm63xx/gpio.c:
+ *	Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
+ *	Copyright (C) 2008-2011 Florian Fainelli <florian@openwrt.org>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <errno.h>
+#include <asm/gpio.h>
+#include <asm/io.h>
+#include <dm/device.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+struct bcm6345_gpio_priv {
+	void __iomem *reg_dirout;
+	void __iomem *reg_data;
+};
+
+static int bcm6345_gpio_get_value(struct udevice *dev, unsigned offset)
+{
+	struct bcm6345_gpio_priv *priv = dev_get_priv(dev);
+
+	return !!(readl_be(priv->reg_data) & BIT(offset));
+}
+
+static int bcm6345_gpio_set_value(struct udevice *dev, unsigned offset,
+				  int value)
+{
+	struct bcm6345_gpio_priv *priv = dev_get_priv(dev);
+
+	if (value)
+		setbits_be32(priv->reg_data, BIT(offset));
+	else
+		clrbits_be32(priv->reg_data, BIT(offset));
+
+	return 0;
+}
+
+static int bcm6345_gpio_set_direction(void __iomem *dirout, unsigned offset,
+				      bool input)
+{
+	if (input)
+		clrbits_be32(dirout, BIT(offset));
+	else
+		setbits_be32(dirout, BIT(offset));
+
+	return 0;
+}
+
+static int bcm6345_gpio_direction_input(struct udevice *dev, unsigned offset)
+{
+	struct bcm6345_gpio_priv *priv = dev_get_priv(dev);
+
+	return bcm6345_gpio_set_direction(priv->reg_dirout, offset, 1);
+}
+
+static int bcm6345_gpio_direction_output(struct udevice *dev, unsigned offset,
+					 int value)
+{
+	struct bcm6345_gpio_priv *priv = dev_get_priv(dev);
+
+	return bcm6345_gpio_set_direction(priv->reg_dirout, offset, 0);
+}
+
+static int bcm6345_gpio_get_function(struct udevice *dev, unsigned offset)
+{
+	struct bcm6345_gpio_priv *priv = dev_get_priv(dev);
+
+	if (readl_be(priv->reg_dirout) & BIT(offset))
+		return GPIOF_OUTPUT;
+	else
+		return GPIOF_INPUT;
+}
+
+static const struct dm_gpio_ops bcm6345_gpio_ops = {
+	.direction_input	= bcm6345_gpio_direction_input,
+	.direction_output	= bcm6345_gpio_direction_output,
+	.get_value		= bcm6345_gpio_get_value,
+	.set_value		= bcm6345_gpio_set_value,
+	.get_function		= bcm6345_gpio_get_function,
+};
+
+static int bcm6345_gpio_probe(struct udevice *dev)
+{
+	struct gpio_dev_priv *uc_priv = dev_get_uclass_priv(dev);
+	struct bcm6345_gpio_priv *priv = dev_get_priv(dev);
+	fdt_addr_t data_addr, dirout_addr;
+	fdt_size_t data_size, dirout_size;
+
+	dirout_addr = dev_get_addr_size_index(dev, 0, &dirout_size);
+	if (dirout_addr == FDT_ADDR_T_NONE)
+		return -EINVAL;
+
+	data_addr = dev_get_addr_size_index(dev, 1, &data_size);
+	if (data_addr == FDT_ADDR_T_NONE)
+		return -EINVAL;
+
+	priv->reg_data = ioremap(data_addr, data_size);
+	priv->reg_dirout = ioremap(dirout_addr, dirout_size);
+
+	uc_priv->gpio_count = fdtdec_get_uint(gd->fdt_blob, dev_of_offset(dev),
+					      "ngpios", 32);
+	uc_priv->bank_name = strdup(dev->name);
+
+	return 0;
+}
+
+static const struct udevice_id bcm6345_gpio_ids[] = {
+	{ .compatible = "brcm,bcm6345-gpio" },
+	{ /* sentinel */ }
+};
+
+U_BOOT_DRIVER(bcm6345_gpio) = {
+	.name = "bcm6345-gpio",
+	.id = UCLASS_GPIO,
+	.of_match = bcm6345_gpio_ids,
+	.ops = &bcm6345_gpio_ops,
+	.probe = bcm6345_gpio_probe,
+	.priv_auto_alloc_size = sizeof(struct bcm6345_gpio_priv),
+};
-- 
2.1.4

[U-Boot] [PATCH 2/5] mips: bmips: add bcm6345-gpio driver support for BCM6358

[Álvaro Fernández Rojas]

This SoC has one gpio bank divided into two 32 bit registers, with a total of
40 GPIOs.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
---
 arch/mips/dts/brcm,bcm6358.dtsi | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/arch/mips/dts/brcm,bcm6358.dtsi b/arch/mips/dts/brcm,bcm6358.dtsi
index 48322fb..4c94555 100644
--- a/arch/mips/dts/brcm,bcm6358.dtsi
+++ b/arch/mips/dts/brcm,bcm6358.dtsi
@@ -73,6 +73,25 @@
 			mask = <0x1>;
 		};
 
+		gpio1: gpio-controller at fffe0080 {
+			compatible = "brcm,bcm6345-gpio";
+			reg = <0xfffe0080 0x4>, <0xfffe0088 0x4>;
+			gpio-controller;
+			#gpio-cells = <2>;
+			ngpios = <8>;
+
+			status = "disabled";
+		};
+
+		gpio0: gpio-controller at fffe0084 {
+			compatible = "brcm,bcm6345-gpio";
+			reg = <0xfffe0084 0x4>, <0xfffe008c 0x4>;
+			gpio-controller;
+			#gpio-cells = <2>;
+
+			status = "disabled";
+		};
+
 		uart0: serial at fffe0100 {
 			compatible = "brcm,bcm6345-uart";
 			reg = <0xfffe0100 0x18>;
-- 
2.1.4

[U-Boot] [PATCH 3/5] mips: bmips: add bcm6345-gpio driver support for BCM6328

[Álvaro Fernández Rojas]

This SoC has one gpio bank with a total of 32 GPIOs.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
---
 arch/mips/dts/brcm,bcm6328.dtsi | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/mips/dts/brcm,bcm6328.dtsi b/arch/mips/dts/brcm,bcm6328.dtsi
index b287239..30c2ee8 100644
--- a/arch/mips/dts/brcm,bcm6328.dtsi
+++ b/arch/mips/dts/brcm,bcm6328.dtsi
@@ -63,6 +63,15 @@
 			mask = <0x1>;
 		};
 
+		gpio: gpio-controller at 10000084 {
+			compatible = "brcm,bcm6345-gpio";
+			reg = <0x10000084 0x4>, <0x1000008c 0x4>;
+			gpio-controller;
+			#gpio-cells = <2>;
+
+			status = "disabled";
+		};
+
 		uart0: serial at 10000100 {
 			compatible = "brcm,bcm6345-uart";
 			reg = <0x10000100 0x18>;
-- 
2.1.4

[U-Boot] [PATCH 4/5] mips: bmips: add bcm6345-gpio driver support for BCM63268

[Álvaro Fernández Rojas]

This SoC has one gpio bank divided into two 32 bit registers, with a total of
52 GPIOs.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
---
 arch/mips/dts/brcm,bcm63268.dtsi | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/arch/mips/dts/brcm,bcm63268.dtsi b/arch/mips/dts/brcm,bcm63268.dtsi
index 3d81047..3eda77d 100644
--- a/arch/mips/dts/brcm,bcm63268.dtsi
+++ b/arch/mips/dts/brcm,bcm63268.dtsi
@@ -63,6 +63,25 @@
 			mask = <0x1>;
 		};
 
+		gpio1: gpio-controller at 100000c0 {
+			compatible = "brcm,bcm6345-gpio";
+			reg = <0x100000c0 0x4>, <0x100000c8 0x4>;
+			gpio-controller;
+			#gpio-cells = <2>;
+			ngpios = <20>;
+
+			status = "disabled";
+		};
+
+		gpio0: gpio-controller at 100000c4 {
+			compatible = "brcm,bcm6345-gpio";
+			reg = <0x100000c4 0x4>, <0x100000cc 0x4>;
+			gpio-controller;
+			#gpio-cells = <2>;
+
+			status = "disabled";
+		};
+
 		uart0: serial at 10000180 {
 			compatible = "brcm,bcm6345-uart";
 			reg = <0x10000180 0x18>;
-- 
2.1.4

[U-Boot] [PATCH 5/5] mips: bmips: add Huawei HG556a gpio-leds

[Álvaro Fernández Rojas]

This board has several LEDs attached to gpio0.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
---
 arch/mips/dts/huawei,hg556a.dts     | 73 +++++++++++++++++++++++++++++++++++++
 configs/huawei_hg556a_ram_defconfig |  4 ++
 2 files changed, 77 insertions(+)

diff --git a/arch/mips/dts/huawei,hg556a.dts b/arch/mips/dts/huawei,hg556a.dts
index 6775909..31c7d7e 100644
--- a/arch/mips/dts/huawei,hg556a.dts
+++ b/arch/mips/dts/huawei,hg556a.dts
@@ -19,6 +19,79 @@
 	chosen {
 		stdout-path = "serial0:115200n8";
 	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+
+		message_red {
+			label = "HG556a:red:message";
+			gpios = <&gpio0 0 GPIO_ACTIVE_LOW>;
+		};
+
+		hspa_red {
+			label = "HG556a:red:hspa";
+			gpios = <&gpio0 1 GPIO_ACTIVE_LOW>;
+		};
+
+		dsl_red {
+			label = "HG556a:red:dsl";
+			gpios = <&gpio0 2 GPIO_ACTIVE_LOW>;
+		};
+
+		power_red {
+			label = "HG556a:red:power";
+			gpios = <&gpio0 3 GPIO_ACTIVE_LOW>;
+		};
+
+		all_red {
+			label = "HG556a:red:all";
+			gpios = <&gpio0 6 GPIO_ACTIVE_LOW>;
+		};
+
+		lan1_green {
+			label = "HG556a:green:lan1";
+			gpios = <&gpio0 12 GPIO_ACTIVE_LOW>;
+		};
+
+		lan1_red {
+			label = "HG556a:red:lan1";
+			gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
+		};
+
+		lan2_green {
+			label = "HG556a:green:lan2";
+			gpios = <&gpio0 15 GPIO_ACTIVE_LOW>;
+		};
+
+		lan2_red {
+			label = "HG556a:red:lan2";
+			gpios = <&gpio0 22 GPIO_ACTIVE_LOW>;
+		};
+
+		lan3_green {
+			label = "HG556a:green:lan3";
+			gpios = <&gpio0 23 GPIO_ACTIVE_LOW>;
+		};
+
+		lan3_red {
+			label = "HG556a:red:lan3";
+			gpios = <&gpio0 26 GPIO_ACTIVE_LOW>;
+		};
+
+		lan4_green {
+			label = "HG556a:green:lan4";
+			gpios = <&gpio0 27 GPIO_ACTIVE_LOW>;
+		};
+
+		lan4_red {
+			label = "HG556a:red:lan4";
+			gpios = <&gpio0 28 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&gpio0 {
+	status = "okay";
 };
 
 &pflash {
diff --git a/configs/huawei_hg556a_ram_defconfig b/configs/huawei_hg556a_ram_defconfig
index ca00c4d..ccfdf1d 100644
--- a/configs/huawei_hg556a_ram_defconfig
+++ b/configs/huawei_hg556a_ram_defconfig
@@ -1,5 +1,6 @@
 CONFIG_ARCH_BMIPS=y
 CONFIG_BAUDRATE=115200
+CONFIG_BCM6345_GPIO=y
 CONFIG_BCM6345_SERIAL=y
 CONFIG_BMIPS_BOOT_RAM=y
 CONFIG_BOARD_HUAWEI_HG556A=y
@@ -17,6 +18,7 @@ CONFIG_CMD_FLASH=y
 # CONFIG_CMD_GPIO is not set
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_IMPORTENV is not set
+CONFIG_CMD_LED=y
 CONFIG_CMD_LICENSE=y
 CONFIG_CMD_LOADB=y
 # CONFIG_CMD_LOADS is not set
@@ -32,6 +34,8 @@ CONFIG_DISPLAY_CPUINFO=y
 CONFIG_DM_GPIO=y
 CONFIG_DM_SERIAL=y
 CONFIG_HUSH_PARSER=y
+CONFIG_LED=y
+CONFIG_LED_GPIO=y
 CONFIG_MIPS=y
 # CONFIG_MIPS_BOOT_CMDLINE_LEGACY is not set
 # CONFIG_MIPS_BOOT_ENV_LEGACY is not set
-- 
2.1.4

[U-Boot] [PATCH 1/5] dm: gpio: add BCM6345 gpio driver

[Simon Glass]

Hi Alvaro,

On 3 May 2017 at 07:07, Álvaro Fernández Rojas <noltari@gmail.com> wrote:
> This driver is based on linux/arch/mips/bcm63xx/gpio.c, simplified to allow
> defining one or two independent banks for each Broadcom SoC.
>
> Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
> ---
>  drivers/gpio/Kconfig        |   6 +++
>  drivers/gpio/Makefile       |   1 +
>  drivers/gpio/bcm6345_gpio.c | 125 ++++++++++++++++++++++++++++++++++++++++++++
>  3 files changed, 132 insertions(+)
>  create mode 100644 drivers/gpio/bcm6345_gpio.c

Reviewed-by: Simon Glass <sjg@chromium.org>

[...]

> +static int bcm6345_gpio_probe(struct udevice *dev)
> +{
> +       struct gpio_dev_priv *uc_priv = dev_get_uclass_priv(dev);
> +       struct bcm6345_gpio_priv *priv = dev_get_priv(dev);
> +       fdt_addr_t data_addr, dirout_addr;
> +       fdt_size_t data_size, dirout_size;
> +
> +       dirout_addr = dev_get_addr_size_index(dev, 0, &dirout_size);
> +       if (dirout_addr == FDT_ADDR_T_NONE)
> +               return -EINVAL;
> +
> +       data_addr = dev_get_addr_size_index(dev, 1, &data_size);
> +       if (data_addr == FDT_ADDR_T_NONE)
> +               return -EINVAL;
> +
> +       priv->reg_data = ioremap(data_addr, data_size);
> +       priv->reg_dirout = ioremap(dirout_addr, dirout_size);
> +
> +       uc_priv->gpio_count = fdtdec_get_uint(gd->fdt_blob, dev_of_offset(dev),
> +                                             "ngpios", 32);
> +       uc_priv->bank_name = strdup(dev->name);

I don't think you need strdup(). If you do want this, you should add a
remove() function to free it.

> +
> +       return 0;
> +}
> +
> +static const struct udevice_id bcm6345_gpio_ids[] = {
> +       { .compatible = "brcm,bcm6345-gpio" },
> +       { /* sentinel */ }
> +};
> +
> +U_BOOT_DRIVER(bcm6345_gpio) = {
> +       .name = "bcm6345-gpio",
> +       .id = UCLASS_GPIO,
> +       .of_match = bcm6345_gpio_ids,
> +       .ops = &bcm6345_gpio_ops,
> +       .probe = bcm6345_gpio_probe,
> +       .priv_auto_alloc_size = sizeof(struct bcm6345_gpio_priv),
> +};
> --
> 2.1.4
>

[U-Boot] [PATCH 2/5] mips: bmips: add bcm6345-gpio driver support for BCM6358

[Simon Glass]

On 3 May 2017 at 07:07, Álvaro Fernández Rojas <noltari@gmail.com> wrote:
> This SoC has one gpio bank divided into two 32 bit registers, with a total of
> 40 GPIOs.
>
> Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
> ---
>  arch/mips/dts/brcm,bcm6358.dtsi | 19 +++++++++++++++++++
>  1 file changed, 19 insertions(+)

Reviewed-by: Simon Glass <sjg@chromium.org>

[U-Boot] [PATCH 3/5] mips: bmips: add bcm6345-gpio driver support for BCM6328

[Simon Glass]

On 3 May 2017 at 07:07, Álvaro Fernández Rojas <noltari@gmail.com> wrote:
> This SoC has one gpio bank with a total of 32 GPIOs.
>
> Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
> ---
>  arch/mips/dts/brcm,bcm6328.dtsi | 9 +++++++++
>  1 file changed, 9 insertions(+)

Reviewed-by: Simon Glass <sjg@chromium.org>

[U-Boot] [PATCH 4/5] mips: bmips: add bcm6345-gpio driver support for BCM63268

[Simon Glass]

On 3 May 2017 at 07:07, Álvaro Fernández Rojas <noltari@gmail.com> wrote:
> This SoC has one gpio bank divided into two 32 bit registers, with a total of
> 52 GPIOs.
>
> Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
> ---
>  arch/mips/dts/brcm,bcm63268.dtsi | 19 +++++++++++++++++++
>  1 file changed, 19 insertions(+)

Reviewed-by: Simon Glass <sjg@chromium.org>

[U-Boot] [PATCH 5/5] mips: bmips: add Huawei HG556a gpio-leds

[Simon Glass]

On 3 May 2017 at 07:07, Álvaro Fernández Rojas <noltari@gmail.com> wrote:
> This board has several LEDs attached to gpio0.
>
> Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
> ---
>  arch/mips/dts/huawei,hg556a.dts     | 73 +++++++++++++++++++++++++++++++++++++
>  configs/huawei_hg556a_ram_defconfig |  4 ++
>  2 files changed, 77 insertions(+)
>

Reviewed-by: Simon Glass <sjg@chromium.org>

[U-Boot] [PATCH v2 0/5] dm: gpio: add BMIPS gpio support

[Álvaro Fernández Rojas]

Broadcom MIPS SoCs have one or two GPIO banks, depending on the number of
gpios present:
BCM6345 => 16 GPIOs / 1 bank
BCM6328 => 32 GPIOs / 1 bank
BCM6358 => 40 GPIOs / 2 banks
BCM63268 => 52 GPIOs / 2 banks

typedef struct GpioControl {
	uint32 GPIODirHi;	/* 0 */
	uint32 GPIODir;		/* 4 */
	uint32 GPIOioHi;	/* 8 */
	uint32 GPIOio;		/* C */
}

v2: Introduce changes suggested by Simon Glass

Álvaro Fernández Rojas (5):
  dm: gpio: add BCM6345 gpio driver
  mips: bmips: add bcm6345-gpio driver support for BCM6358
  mips: bmips: add bcm6345-gpio driver support for BCM6328
  mips: bmips: add bcm6345-gpio driver support for BCM63268
  mips: bmips: add Huawei HG556a gpio-leds

 arch/mips/dts/brcm,bcm63268.dtsi    |  19 ++++++
 arch/mips/dts/brcm,bcm6328.dtsi     |   9 +++
 arch/mips/dts/brcm,bcm6358.dtsi     |  19 ++++++
 arch/mips/dts/huawei,hg556a.dts     |  73 +++++++++++++++++++++
 configs/huawei_hg556a_ram_defconfig |   4 ++
 drivers/gpio/Kconfig                |   6 ++
 drivers/gpio/Makefile               |   1 +
 drivers/gpio/bcm6345_gpio.c         | 125 ++++++++++++++++++++++++++++++++++++
 8 files changed, 256 insertions(+)
 create mode 100644 drivers/gpio/bcm6345_gpio.c

-- 
2.1.4

[U-Boot] [PATCH v2 1/5] dm: gpio: add BCM6345 gpio driver

[Álvaro Fernández Rojas]

This driver is based on linux/arch/mips/bcm63xx/gpio.c, simplified to allow
defining one or two independent banks for each Broadcom SoC.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
 v2: Introduce changes suggested by Simon Glass:
  - Remove unneeded strdup.

 drivers/gpio/Kconfig        |   6 +++
 drivers/gpio/Makefile       |   1 +
 drivers/gpio/bcm6345_gpio.c | 125 ++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 132 insertions(+)
 create mode 100644 drivers/gpio/bcm6345_gpio.c

diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index c95e9ac..9f04061 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -21,6 +21,12 @@ config ALTERA_PIO
 	  Select this to enable PIO for Altera devices. Please find
 	  details on the "Embedded Peripherals IP User Guide" of Altera.
 
+config BCM6345_GPIO
+	bool "BCM6345 GPIO driver"
+	depends on DM_GPIO && ARCH_BMIPS
+	help
+	  This driver supports the GPIO banks on BCM6345 SoCs.
+
 config DWAPB_GPIO
 	bool "DWAPB GPIO driver"
 	depends on DM && DM_GPIO
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index 27f8068..0484428 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -16,6 +16,7 @@ obj-$(CONFIG_DM_74X164)		+= 74x164_gpio.o
 
 obj-$(CONFIG_AT91_GPIO)	+= at91_gpio.o
 obj-$(CONFIG_ATMEL_PIO4)	+= atmel_pio4.o
+obj-$(CONFIG_BCM6345_GPIO)	+= bcm6345_gpio.o
 obj-$(CONFIG_INTEL_ICH6_GPIO)	+= intel_ich6_gpio.o
 obj-$(CONFIG_INTEL_BROADWELL_GPIO)	+= intel_broadwell_gpio.o
 obj-$(CONFIG_KIRKWOOD_GPIO)	+= kw_gpio.o
diff --git a/drivers/gpio/bcm6345_gpio.c b/drivers/gpio/bcm6345_gpio.c
new file mode 100644
index 0000000..1c46020
--- /dev/null
+++ b/drivers/gpio/bcm6345_gpio.c
@@ -0,0 +1,125 @@
+/*
+ * Copyright (C) 2017 Álvaro Fernández Rojas <noltari@gmail.com>
+ *
+ * Derived from linux/arch/mips/bcm63xx/gpio.c:
+ *	Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
+ *	Copyright (C) 2008-2011 Florian Fainelli <florian@openwrt.org>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <errno.h>
+#include <asm/gpio.h>
+#include <asm/io.h>
+#include <dm/device.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+struct bcm6345_gpio_priv {
+	void __iomem *reg_dirout;
+	void __iomem *reg_data;
+};
+
+static int bcm6345_gpio_get_value(struct udevice *dev, unsigned offset)
+{
+	struct bcm6345_gpio_priv *priv = dev_get_priv(dev);
+
+	return !!(readl_be(priv->reg_data) & BIT(offset));
+}
+
+static int bcm6345_gpio_set_value(struct udevice *dev, unsigned offset,
+				  int value)
+{
+	struct bcm6345_gpio_priv *priv = dev_get_priv(dev);
+
+	if (value)
+		setbits_be32(priv->reg_data, BIT(offset));
+	else
+		clrbits_be32(priv->reg_data, BIT(offset));
+
+	return 0;
+}
+
+static int bcm6345_gpio_set_direction(void __iomem *dirout, unsigned offset,
+				      bool input)
+{
+	if (input)
+		clrbits_be32(dirout, BIT(offset));
+	else
+		setbits_be32(dirout, BIT(offset));
+
+	return 0;
+}
+
+static int bcm6345_gpio_direction_input(struct udevice *dev, unsigned offset)
+{
+	struct bcm6345_gpio_priv *priv = dev_get_priv(dev);
+
+	return bcm6345_gpio_set_direction(priv->reg_dirout, offset, 1);
+}
+
+static int bcm6345_gpio_direction_output(struct udevice *dev, unsigned offset,
+					 int value)
+{
+	struct bcm6345_gpio_priv *priv = dev_get_priv(dev);
+
+	return bcm6345_gpio_set_direction(priv->reg_dirout, offset, 0);
+}
+
+static int bcm6345_gpio_get_function(struct udevice *dev, unsigned offset)
+{
+	struct bcm6345_gpio_priv *priv = dev_get_priv(dev);
+
+	if (readl_be(priv->reg_dirout) & BIT(offset))
+		return GPIOF_OUTPUT;
+	else
+		return GPIOF_INPUT;
+}
+
+static const struct dm_gpio_ops bcm6345_gpio_ops = {
+	.direction_input = bcm6345_gpio_direction_input,
+	.direction_output = bcm6345_gpio_direction_output,
+	.get_value = bcm6345_gpio_get_value,
+	.set_value = bcm6345_gpio_set_value,
+	.get_function = bcm6345_gpio_get_function,
+};
+
+static int bcm6345_gpio_probe(struct udevice *dev)
+{
+	struct gpio_dev_priv *uc_priv = dev_get_uclass_priv(dev);
+	struct bcm6345_gpio_priv *priv = dev_get_priv(dev);
+	fdt_addr_t data_addr, dirout_addr;
+	fdt_size_t data_size, dirout_size;
+
+	dirout_addr = dev_get_addr_size_index(dev, 0, &dirout_size);
+	if (dirout_addr == FDT_ADDR_T_NONE)
+		return -EINVAL;
+
+	data_addr = dev_get_addr_size_index(dev, 1, &data_size);
+	if (data_addr == FDT_ADDR_T_NONE)
+		return -EINVAL;
+
+	priv->reg_data = ioremap(data_addr, data_size);
+	priv->reg_dirout = ioremap(dirout_addr, dirout_size);
+
+	uc_priv->gpio_count = fdtdec_get_uint(gd->fdt_blob, dev_of_offset(dev),
+					      "ngpios", 32);
+	uc_priv->bank_name = dev->name;
+
+	return 0;
+}
+
+static const struct udevice_id bcm6345_gpio_ids[] = {
+	{ .compatible = "brcm,bcm6345-gpio" },
+	{ /* sentinel */ }
+};
+
+U_BOOT_DRIVER(bcm6345_gpio) = {
+	.name = "bcm6345-gpio",
+	.id = UCLASS_GPIO,
+	.of_match = bcm6345_gpio_ids,
+	.ops = &bcm6345_gpio_ops,
+	.priv_auto_alloc_size = sizeof(struct bcm6345_gpio_priv),
+	.probe = bcm6345_gpio_probe,
+};
-- 
2.1.4

[U-Boot] [PATCH v2 2/5] mips: bmips: add bcm6345-gpio driver support for BCM6358

[Álvaro Fernández Rojas]

This SoC has one gpio bank divided into two 32 bit registers, with a total of
40 GPIOs.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
 v2: no changes.

 arch/mips/dts/brcm,bcm6358.dtsi | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/arch/mips/dts/brcm,bcm6358.dtsi b/arch/mips/dts/brcm,bcm6358.dtsi
index 48322fb..4c94555 100644
--- a/arch/mips/dts/brcm,bcm6358.dtsi
+++ b/arch/mips/dts/brcm,bcm6358.dtsi
@@ -73,6 +73,25 @@
 			mask = <0x1>;
 		};
 
+		gpio1: gpio-controller at fffe0080 {
+			compatible = "brcm,bcm6345-gpio";
+			reg = <0xfffe0080 0x4>, <0xfffe0088 0x4>;
+			gpio-controller;
+			#gpio-cells = <2>;
+			ngpios = <8>;
+
+			status = "disabled";
+		};
+
+		gpio0: gpio-controller at fffe0084 {
+			compatible = "brcm,bcm6345-gpio";
+			reg = <0xfffe0084 0x4>, <0xfffe008c 0x4>;
+			gpio-controller;
+			#gpio-cells = <2>;
+
+			status = "disabled";
+		};
+
 		uart0: serial at fffe0100 {
 			compatible = "brcm,bcm6345-uart";
 			reg = <0xfffe0100 0x18>;
-- 
2.1.4

[U-Boot] [PATCH v2 3/5] mips: bmips: add bcm6345-gpio driver support for BCM6328

[Álvaro Fernández Rojas]

This SoC has one gpio bank with a total of 32 GPIOs.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
 v2: no changes.

 arch/mips/dts/brcm,bcm6328.dtsi | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/mips/dts/brcm,bcm6328.dtsi b/arch/mips/dts/brcm,bcm6328.dtsi
index b287239..30c2ee8 100644
--- a/arch/mips/dts/brcm,bcm6328.dtsi
+++ b/arch/mips/dts/brcm,bcm6328.dtsi
@@ -63,6 +63,15 @@
 			mask = <0x1>;
 		};
 
+		gpio: gpio-controller at 10000084 {
+			compatible = "brcm,bcm6345-gpio";
+			reg = <0x10000084 0x4>, <0x1000008c 0x4>;
+			gpio-controller;
+			#gpio-cells = <2>;
+
+			status = "disabled";
+		};
+
 		uart0: serial at 10000100 {
 			compatible = "brcm,bcm6345-uart";
 			reg = <0x10000100 0x18>;
-- 
2.1.4

[U-Boot] [PATCH v2 4/5] mips: bmips: add bcm6345-gpio driver support for BCM63268

[Álvaro Fernández Rojas]

This SoC has one gpio bank divided into two 32 bit registers, with a total of
52 GPIOs.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
 v2: no changes.

 arch/mips/dts/brcm,bcm63268.dtsi | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/arch/mips/dts/brcm,bcm63268.dtsi b/arch/mips/dts/brcm,bcm63268.dtsi
index 3d81047..3eda77d 100644
--- a/arch/mips/dts/brcm,bcm63268.dtsi
+++ b/arch/mips/dts/brcm,bcm63268.dtsi
@@ -63,6 +63,25 @@
 			mask = <0x1>;
 		};
 
+		gpio1: gpio-controller at 100000c0 {
+			compatible = "brcm,bcm6345-gpio";
+			reg = <0x100000c0 0x4>, <0x100000c8 0x4>;
+			gpio-controller;
+			#gpio-cells = <2>;
+			ngpios = <20>;
+
+			status = "disabled";
+		};
+
+		gpio0: gpio-controller at 100000c4 {
+			compatible = "brcm,bcm6345-gpio";
+			reg = <0x100000c4 0x4>, <0x100000cc 0x4>;
+			gpio-controller;
+			#gpio-cells = <2>;
+
+			status = "disabled";
+		};
+
 		uart0: serial at 10000180 {
 			compatible = "brcm,bcm6345-uart";
 			reg = <0x10000180 0x18>;
-- 
2.1.4

[U-Boot] [PATCH v2 5/5] mips: bmips: add Huawei HG556a gpio-leds

[Álvaro Fernández Rojas]

This board has several LEDs attached to gpio0.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
 v2: no changes.

 arch/mips/dts/huawei,hg556a.dts     | 73 +++++++++++++++++++++++++++++++++++++
 configs/huawei_hg556a_ram_defconfig |  4 ++
 2 files changed, 77 insertions(+)

diff --git a/arch/mips/dts/huawei,hg556a.dts b/arch/mips/dts/huawei,hg556a.dts
index 6775909..31c7d7e 100644
--- a/arch/mips/dts/huawei,hg556a.dts
+++ b/arch/mips/dts/huawei,hg556a.dts
@@ -19,6 +19,79 @@
 	chosen {
 		stdout-path = "serial0:115200n8";
 	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+
+		message_red {
+			label = "HG556a:red:message";
+			gpios = <&gpio0 0 GPIO_ACTIVE_LOW>;
+		};
+
+		hspa_red {
+			label = "HG556a:red:hspa";
+			gpios = <&gpio0 1 GPIO_ACTIVE_LOW>;
+		};
+
+		dsl_red {
+			label = "HG556a:red:dsl";
+			gpios = <&gpio0 2 GPIO_ACTIVE_LOW>;
+		};
+
+		power_red {
+			label = "HG556a:red:power";
+			gpios = <&gpio0 3 GPIO_ACTIVE_LOW>;
+		};
+
+		all_red {
+			label = "HG556a:red:all";
+			gpios = <&gpio0 6 GPIO_ACTIVE_LOW>;
+		};
+
+		lan1_green {
+			label = "HG556a:green:lan1";
+			gpios = <&gpio0 12 GPIO_ACTIVE_LOW>;
+		};
+
+		lan1_red {
+			label = "HG556a:red:lan1";
+			gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
+		};
+
+		lan2_green {
+			label = "HG556a:green:lan2";
+			gpios = <&gpio0 15 GPIO_ACTIVE_LOW>;
+		};
+
+		lan2_red {
+			label = "HG556a:red:lan2";
+			gpios = <&gpio0 22 GPIO_ACTIVE_LOW>;
+		};
+
+		lan3_green {
+			label = "HG556a:green:lan3";
+			gpios = <&gpio0 23 GPIO_ACTIVE_LOW>;
+		};
+
+		lan3_red {
+			label = "HG556a:red:lan3";
+			gpios = <&gpio0 26 GPIO_ACTIVE_LOW>;
+		};
+
+		lan4_green {
+			label = "HG556a:green:lan4";
+			gpios = <&gpio0 27 GPIO_ACTIVE_LOW>;
+		};
+
+		lan4_red {
+			label = "HG556a:red:lan4";
+			gpios = <&gpio0 28 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&gpio0 {
+	status = "okay";
 };
 
 &pflash {
diff --git a/configs/huawei_hg556a_ram_defconfig b/configs/huawei_hg556a_ram_defconfig
index ca00c4d..ccfdf1d 100644
--- a/configs/huawei_hg556a_ram_defconfig
+++ b/configs/huawei_hg556a_ram_defconfig
@@ -1,5 +1,6 @@
 CONFIG_ARCH_BMIPS=y
 CONFIG_BAUDRATE=115200
+CONFIG_BCM6345_GPIO=y
 CONFIG_BCM6345_SERIAL=y
 CONFIG_BMIPS_BOOT_RAM=y
 CONFIG_BOARD_HUAWEI_HG556A=y
@@ -17,6 +18,7 @@ CONFIG_CMD_FLASH=y
 # CONFIG_CMD_GPIO is not set
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_IMPORTENV is not set
+CONFIG_CMD_LED=y
 CONFIG_CMD_LICENSE=y
 CONFIG_CMD_LOADB=y
 # CONFIG_CMD_LOADS is not set
@@ -32,6 +34,8 @@ CONFIG_DISPLAY_CPUINFO=y
 CONFIG_DM_GPIO=y
 CONFIG_DM_SERIAL=y
 CONFIG_HUSH_PARSER=y
+CONFIG_LED=y
+CONFIG_LED_GPIO=y
 CONFIG_MIPS=y
 # CONFIG_MIPS_BOOT_CMDLINE_LEGACY is not set
 # CONFIG_MIPS_BOOT_ENV_LEGACY is not set
-- 
2.1.4

[U-Boot] [PATCH 0/5] dm: gpio: add BMIPS gpio support

[Daniel Schwierzeck]

Am 03.05.2017 um 15:07 schrieb Álvaro Fernández Rojas:
> Broadcom MIPS SoCs have one or two GPIO banks, depending on the number of
> gpios present:
> BCM6345 => 16 GPIOs / 1 bank
> BCM6328 => 32 GPIOs / 1 bank
> BCM6358 => 40 GPIOs / 2 banks
> BCM63268 => 52 GPIOs / 2 banks
> 
> typedef struct GpioControl {
> 	uint32 GPIODirHi;	/* 0 */
> 	uint32 GPIODir;		/* 4 */
> 	uint32 GPIOioHi;	/* 8 */
> 	uint32 GPIOio;		/* C */
> }
> 
> Álvaro Fernández Rojas (5):
>   dm: gpio: add BCM6345 gpio driver
>   mips: bmips: add bcm6345-gpio driver support for BCM6358
>   mips: bmips: add bcm6345-gpio driver support for BCM6328
>   mips: bmips: add bcm6345-gpio driver support for BCM63268
>   mips: bmips: add Huawei HG556a gpio-leds
> 
>  arch/mips/dts/brcm,bcm63268.dtsi    |  19 ++++++
>  arch/mips/dts/brcm,bcm6328.dtsi     |   9 +++
>  arch/mips/dts/brcm,bcm6358.dtsi     |  19 ++++++
>  arch/mips/dts/huawei,hg556a.dts     |  73 +++++++++++++++++++++
>  configs/huawei_hg556a_ram_defconfig |   4 ++
>  drivers/gpio/Kconfig                |   6 ++
>  drivers/gpio/Makefile               |   1 +
>  drivers/gpio/bcm6345_gpio.c         | 125 ++++++++++++++++++++++++++++++++++++
>  8 files changed, 256 insertions(+)
>  create mode 100644 drivers/gpio/bcm6345_gpio.c
> 

series applied to u-boot-mips/next, thanks

-- 
- Daniel

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