[U-Boot] [PATCH 0/4] dm: power: domain: add BCM6328 power domain driver

[U-Boot] [PATCH 0/4] dm: power: domain: add BCM6328 power domain driver

[Álvaro Fernández Rojas]

BCM6328 SoCs have power domain controllers which supports enabling and
disabling power for the different peripherals.

Álvaro Fernández Rojas (4):
  dm: power: domain: add BCM6328 power domain driver
  mips: bmips: add bcm6328-power-domain driver support for BCM6328
  mips: bmips: add bcm6328-power-domain driver support for BCM63268
  mips: bmips: enable bcm6328-power-domain driver for BCM6328 and
    BCM63268 boards

 arch/mips/dts/brcm,bcm63268.dtsi                   |  7 ++
 arch/mips/dts/brcm,bcm6328.dtsi                    |  7 ++
 configs/comtrend_ar5387un_ram_defconfig            |  2 +
 configs/comtrend_vr3032u_ram_defconfig             |  2 +
 drivers/power/domain/Kconfig                       |  7 ++
 drivers/power/domain/Makefile                      |  1 +
 drivers/power/domain/bcm6328-power-domain.c        | 83 ++++++++++++++++++++++
 .../power-domain/bcm63268-power-domain.h           | 25 +++++++
 .../power-domain/bcm6328-power-domain.h            | 21 ++++++
 9 files changed, 155 insertions(+)
 create mode 100644 drivers/power/domain/bcm6328-power-domain.c
 create mode 100644 include/dt-bindings/power-domain/bcm63268-power-domain.h
 create mode 100644 include/dt-bindings/power-domain/bcm6328-power-domain.h

-- 
2.1.4

[U-Boot] [PATCH 1/4] dm: power: domain: add BCM6328 power domain driver

[Álvaro Fernández Rojas]

This allows controlling MISC IDDQ register on BCM6328 SoCs.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
---
 drivers/power/domain/Kconfig                |  7 +++
 drivers/power/domain/Makefile               |  1 +
 drivers/power/domain/bcm6328-power-domain.c | 83 +++++++++++++++++++++++++++++
 3 files changed, 91 insertions(+)
 create mode 100644 drivers/power/domain/bcm6328-power-domain.c

diff --git a/drivers/power/domain/Kconfig b/drivers/power/domain/Kconfig
index 132e332..7cfa761 100644
--- a/drivers/power/domain/Kconfig
+++ b/drivers/power/domain/Kconfig
@@ -9,6 +9,13 @@ config POWER_DOMAIN
 	  domains). This may be used to save power. This API provides the
 	  means to control such power management hardware.
 
+config BCM6328_POWER_DOMAIN
+	bool "Enable the BCM6328 power domain driver"
+	depends on POWER_DOMAIN && ARCH_BMIPS
+	help
+	  Enable support for manipulating BCM6345 power domains via MMIO
+	  mapped registers.
+
 config SANDBOX_POWER_DOMAIN
 	bool "Enable the sandbox power domain test driver"
 	depends on POWER_DOMAIN && SANDBOX
diff --git a/drivers/power/domain/Makefile b/drivers/power/domain/Makefile
index 2c3d926..c7d7644 100644
--- a/drivers/power/domain/Makefile
+++ b/drivers/power/domain/Makefile
@@ -3,6 +3,7 @@
 # SPDX-License-Identifier: GPL-2.0
 
 obj-$(CONFIG_POWER_DOMAIN) += power-domain-uclass.o
+obj-$(CONFIG_BCM6328_POWER_DOMAIN) += bcm6328-power-domain.o
 obj-$(CONFIG_SANDBOX_POWER_DOMAIN) += sandbox-power-domain.o
 obj-$(CONFIG_SANDBOX_POWER_DOMAIN) += sandbox-power-domain-test.o
 obj-$(CONFIG_TEGRA186_POWER_DOMAIN) += tegra186-power-domain.o
diff --git a/drivers/power/domain/bcm6328-power-domain.c b/drivers/power/domain/bcm6328-power-domain.c
new file mode 100644
index 0000000..15638bf
--- /dev/null
+++ b/drivers/power/domain/bcm6328-power-domain.c
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2017 Álvaro Fernández Rojas <noltari@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <power-domain-uclass.h>
+#include <asm/io.h>
+
+#define MAX_DOMAINS	32
+
+struct bcm6328_power_domain {
+	void __iomem *regs;
+};
+
+static int bcm6328_power_domain_request(struct power_domain *power_domain)
+{
+	if (power_domain->id >= MAX_DOMAINS)
+		return -EINVAL;
+
+	return 0;
+}
+
+static int bcm6328_power_domain_free(struct power_domain *power_domain)
+{
+	return 0;
+}
+
+static int bcm6328_power_domain_on(struct power_domain *power_domain)
+{
+	struct bcm6328_power_domain *priv = dev_get_priv(power_domain->dev);
+
+	clrbits_be32(priv->regs, BIT(power_domain->id));
+
+	return 0;
+}
+
+static int bcm6328_power_domain_off(struct power_domain *power_domain)
+{
+	struct bcm6328_power_domain *priv = dev_get_priv(power_domain->dev);
+
+	setbits_be32(priv->regs, BIT(power_domain->id));
+
+	return 0;
+}
+
+static int bcm6328_power_domain_probe(struct udevice *dev)
+{
+	struct bcm6328_power_domain *priv = dev_get_priv(dev);
+	fdt_addr_t addr;
+	fdt_size_t size;
+
+	addr = dev_get_addr_size_index(dev, 0, &size);
+	if (addr == FDT_ADDR_T_NONE)
+		return -EINVAL;
+
+	priv->regs = ioremap(addr, size);
+
+	return 0;
+}
+
+static const struct udevice_id bcm6328_power_domain_ids[] = {
+	{ .compatible = "brcm,bcm6328-power-domain" },
+	{ /* sentinel */ }
+};
+
+struct power_domain_ops bcm6328_power_domain_ops = {
+	.free = bcm6328_power_domain_free,
+	.off = bcm6328_power_domain_off,
+	.on = bcm6328_power_domain_on,
+	.request = bcm6328_power_domain_request,
+};
+
+U_BOOT_DRIVER(bcm6328_power_domain) = {
+	.name = "bcm6328_power_domain",
+	.id = UCLASS_POWER_DOMAIN,
+	.of_match = bcm6328_power_domain_ids,
+	.ops = &bcm6328_power_domain_ops,
+	.priv_auto_alloc_size = sizeof(struct bcm6328_power_domain),
+	.probe = bcm6328_power_domain_probe,
+};
-- 
2.1.4

[U-Boot] [PATCH 2/4] mips: bmips: add bcm6328-power-domain driver support for BCM6328

[Álvaro Fernández Rojas]

This driver can control up to 32 power domains.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
---
 arch/mips/dts/brcm,bcm6328.dtsi                     |  7 +++++++
 .../dt-bindings/power-domain/bcm6328-power-domain.h | 21 +++++++++++++++++++++
 2 files changed, 28 insertions(+)
 create mode 100644 include/dt-bindings/power-domain/bcm6328-power-domain.h

diff --git a/arch/mips/dts/brcm,bcm6328.dtsi b/arch/mips/dts/brcm,bcm6328.dtsi
index 9b76a23..4adc83f 100644
--- a/arch/mips/dts/brcm,bcm6328.dtsi
+++ b/arch/mips/dts/brcm,bcm6328.dtsi
@@ -6,6 +6,7 @@
 
 #include <dt-bindings/clock/bcm6328-clock.h>
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/power-domain/bcm6328-power-domain.h>
 #include <dt-bindings/reset/bcm6328-reset.h>
 #include "skeleton.dtsi"
 
@@ -111,6 +112,12 @@
 			status = "disabled";
 		};
 
+		periph_pwr: power-controller at 10001848 {
+			compatible = "brcm,bcm6328-power-domain";
+			reg = <0x10001848 0x4>;
+			#power-domain-cells = <1>;
+		};
+
 		memory-controller at 10003000 {
 			compatible = "brcm,bcm6328-mc";
 			reg = <0x10003000 0x1000>;
diff --git a/include/dt-bindings/power-domain/bcm6328-power-domain.h b/include/dt-bindings/power-domain/bcm6328-power-domain.h
new file mode 100644
index 0000000..006806c
--- /dev/null
+++ b/include/dt-bindings/power-domain/bcm6328-power-domain.h
@@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2017 Álvaro Fernández Rojas <noltari@gmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __DT_BINDINGS_POWER_DOMAIN_BCM6328_H
+#define __DT_BINDINGS_POWER_DOMAIN_BCM6328_H
+
+#define BCM6328_PWR_ADSL2_MIPS	0
+#define BCM6328_PWR_ADSL2_PHY	1
+#define BCM6328_PWR_ADSL2_AFE	2
+#define BCM6328_PWR_SAR		3
+#define BCM6328_PWR_PCM		4
+#define BCM6328_PWR_USBD	5
+#define BCM6328_PWR_USBH	6
+#define BCM6328_PWR_PCIE	7
+#define BCM6328_PWR_ROBOSW	8
+#define BCM6328_PWR_EPHY	9
+
+#endif /* __DT_BINDINGS_POWER_DOMAIN_BCM6328_H */
-- 
2.1.4

[U-Boot] [PATCH 3/4] mips: bmips: add bcm6328-power-domain driver support for BCM63268

[Álvaro Fernández Rojas]

This driver can control up to 32 power domains.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
---
 arch/mips/dts/brcm,bcm63268.dtsi                   |  7 ++++++
 .../power-domain/bcm63268-power-domain.h           | 25 ++++++++++++++++++++++
 2 files changed, 32 insertions(+)
 create mode 100644 include/dt-bindings/power-domain/bcm63268-power-domain.h

diff --git a/arch/mips/dts/brcm,bcm63268.dtsi b/arch/mips/dts/brcm,bcm63268.dtsi
index 8ff13c1..3d0f8e0 100644
--- a/arch/mips/dts/brcm,bcm63268.dtsi
+++ b/arch/mips/dts/brcm,bcm63268.dtsi
@@ -6,6 +6,7 @@
 
 #include <dt-bindings/clock/bcm63268-clock.h>
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/power-domain/bcm63268-power-domain.h>
 #include <dt-bindings/reset/bcm63268-reset.h>
 #include "skeleton.dtsi"
 
@@ -118,6 +119,12 @@
 			status = "disabled";
 		};
 
+		periph_pwr: power-controller at 1000184c {
+			compatible = "brcm,bcm6328-power-domain";
+			reg = <0x1000184c 0x4>;
+			#power-domain-cells = <1>;
+		};
+
 		leds: led-controller at 10001900 {
 			compatible = "brcm,bcm6328-leds";
 			reg = <0x10001900 0x24>;
diff --git a/include/dt-bindings/power-domain/bcm63268-power-domain.h b/include/dt-bindings/power-domain/bcm63268-power-domain.h
new file mode 100644
index 0000000..d9eba44
--- /dev/null
+++ b/include/dt-bindings/power-domain/bcm63268-power-domain.h
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2017 Álvaro Fernández Rojas <noltari@gmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __DT_BINDINGS_POWER_DOMAIN_BCM63268_H
+#define __DT_BINDINGS_POWER_DOMAIN_BCM63268_H
+
+#define BCM63268_PWR_SAR	0
+#define BCM63268_PWR_IPSEC	1
+#define BCM63268_PWR_MIPS	2
+#define BCM63268_PWR_DECT	3
+#define BCM63268_PWR_USBH	4
+#define BCM63268_PWR_USBD	5
+#define BCM63268_PWR_ROBOSW	6
+#define BCM63268_PWR_PCM	7
+#define BCM63268_PWR_PERIPH	8
+#define BCM63268_PWR_VDSL_PHY	9
+#define BCM63268_PWR_VDSL_MIPS	10
+#define BCM63268_PWR_FAP	11
+#define BCM63268_PWR_PCIE	12
+#define BCM63268_PWR_WLAN_PADS	13
+
+#endif /* __DT_BINDINGS_POWER_DOMAIN_BCM63268_H */
-- 
2.1.4

[U-Boot] [PATCH 4/4] mips: bmips: enable bcm6328-power-domain driver for BCM6328 and BCM63268 boards

[Álvaro Fernández Rojas]

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
---
 configs/comtrend_ar5387un_ram_defconfig | 2 ++
 configs/comtrend_vr3032u_ram_defconfig  | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/configs/comtrend_ar5387un_ram_defconfig b/configs/comtrend_ar5387un_ram_defconfig
index d613740..5b05fd2 100644
--- a/configs/comtrend_ar5387un_ram_defconfig
+++ b/configs/comtrend_ar5387un_ram_defconfig
@@ -1,5 +1,6 @@
 CONFIG_ARCH_BMIPS=y
 CONFIG_BAUDRATE=115200
+CONFIG_BCM6328_POWER_DOMAIN=y
 CONFIG_BCM6345_CLK=y
 CONFIG_BCM6345_SERIAL=y
 CONFIG_BMIPS_BOOT_RAM=y
@@ -42,6 +43,7 @@ CONFIG_MIPS=y
 # CONFIG_MIPS_BOOT_ENV_LEGACY is not set
 CONFIG_MIPS_BOOT_FDT=y
 CONFIG_OF_STDOUT_VIA_ALIAS=y
+CONFIG_POWER_DOMAIN=y
 CONFIG_RESET=y
 CONFIG_RESET_BCM6345=y
 CONFIG_SOC_BMIPS_BCM6328=y
diff --git a/configs/comtrend_vr3032u_ram_defconfig b/configs/comtrend_vr3032u_ram_defconfig
index fa2b2ae..c056d73 100644
--- a/configs/comtrend_vr3032u_ram_defconfig
+++ b/configs/comtrend_vr3032u_ram_defconfig
@@ -1,5 +1,6 @@
 CONFIG_ARCH_BMIPS=y
 CONFIG_BAUDRATE=115200
+CONFIG_BCM6328_POWER_DOMAIN=y
 CONFIG_BCM6345_CLK=y
 CONFIG_BCM6345_SERIAL=y
 CONFIG_BMIPS_BOOT_RAM=y
@@ -42,6 +43,7 @@ CONFIG_MIPS=y
 # CONFIG_MIPS_BOOT_ENV_LEGACY is not set
 CONFIG_MIPS_BOOT_FDT=y
 CONFIG_OF_STDOUT_VIA_ALIAS=y
+CONFIG_POWER_DOMAIN=y
 CONFIG_RESET=y
 CONFIG_RESET_BCM6345=y
 CONFIG_SOC_BMIPS_BCM63268=y
-- 
2.1.4

[U-Boot] [PATCH 0/4] dm: power: domain: add BCM6328 power domain driver

[Daniel Schwierzeck]

Am 07.05.2017 um 20:28 schrieb Álvaro Fernández Rojas:
> BCM6328 SoCs have power domain controllers which supports enabling and
> disabling power for the different peripherals.
> 
> Álvaro Fernández Rojas (4):
>   dm: power: domain: add BCM6328 power domain driver
>   mips: bmips: add bcm6328-power-domain driver support for BCM6328
>   mips: bmips: add bcm6328-power-domain driver support for BCM63268
>   mips: bmips: enable bcm6328-power-domain driver for BCM6328 and
>     BCM63268 boards
> 
>  arch/mips/dts/brcm,bcm63268.dtsi                   |  7 ++
>  arch/mips/dts/brcm,bcm6328.dtsi                    |  7 ++
>  configs/comtrend_ar5387un_ram_defconfig            |  2 +
>  configs/comtrend_vr3032u_ram_defconfig             |  2 +
>  drivers/power/domain/Kconfig                       |  7 ++
>  drivers/power/domain/Makefile                      |  1 +
>  drivers/power/domain/bcm6328-power-domain.c        | 83 ++++++++++++++++++++++
>  .../power-domain/bcm63268-power-domain.h           | 25 +++++++
>  .../power-domain/bcm6328-power-domain.h            | 21 ++++++
>  9 files changed, 155 insertions(+)
>  create mode 100644 drivers/power/domain/bcm6328-power-domain.c
>  create mode 100644 include/dt-bindings/power-domain/bcm63268-power-domain.h
>  create mode 100644 include/dt-bindings/power-domain/bcm6328-power-domain.h
> 

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

-- 
- Daniel

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