[U-Boot] [PATCH 0/8] mips: bmips: add bcm6345 watchdog support

[U-Boot] [PATCH 0/8] mips: bmips: add bcm6345 watchdog support

[Álvaro Fernández Rojas]

Adds support for Broadcom MIPS BCM6345 watchdog controller.
Also adds a generic watchdog sysreset driver to allow rebooting by expiring
the SoC watchdog.
This is needed for some specific Broadcom MIPS SoCs where pll_conf if bugged
and it can't be used to perform SoC reboots, like in BCM6348 (a1 rev).

Álvaro Fernández Rojas (8):
  dm: watchdog: add BCM6345 watchdog driver
  mips: bmips: add bcm6345-wdt driver support for BCM6358
  mips: bmips: add bcm6345-wdt driver support for BCM6328
  mips: bmips: add bcm6345-wdt driver support for BCM63268
  dm: sysreset: add watchdog-reboot driver
  mips: bmips: add wdt-reboot driver support for BCM6358
  mips: bmips: add wdt-reboot driver support for BCM6328
  mips: bmips: add wdt-reboot driver support for BCM63268

 arch/mips/dts/brcm,bcm63268.dtsi     |  11 ++++
 arch/mips/dts/brcm,bcm6328.dtsi      |  11 ++++
 arch/mips/dts/brcm,bcm6358.dtsi      |  11 ++++
 drivers/sysreset/Kconfig             |   6 ++
 drivers/sysreset/Makefile            |   1 +
 drivers/sysreset/sysreset_watchdog.c |  57 ++++++++++++++++++
 drivers/watchdog/Kconfig             |   8 +++
 drivers/watchdog/Makefile            |   1 +
 drivers/watchdog/bcm6345_wdt.c       | 109 +++++++++++++++++++++++++++++++++++
 9 files changed, 215 insertions(+)
 create mode 100644 drivers/sysreset/sysreset_watchdog.c
 create mode 100644 drivers/watchdog/bcm6345_wdt.c

-- 
2.1.4

[U-Boot] [PATCH 1/8] dm: watchdog: add BCM6345 watchdog driver

[Álvaro Fernández Rojas]

This driver is a simplified version of linux/drivers/watchdog/bcm63xx_wdt.c

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
---
 drivers/watchdog/Kconfig       |   8 +++
 drivers/watchdog/Makefile      |   1 +
 drivers/watchdog/bcm6345_wdt.c | 109 +++++++++++++++++++++++++++++++++++++++++
 3 files changed, 118 insertions(+)
 create mode 100644 drivers/watchdog/bcm6345_wdt.c

diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index bdaf5d4..8d56af7 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -46,4 +46,12 @@ config WDT_ASPEED
 	  It currently does not support Boot Flash Addressing Mode Detection or
 	  Second Boot.
 
+config WDT_BCM6345
+	bool "BCM6345 watchdog timer support"
+	depends on WDT && ARCH_BMIPS
+	help
+	  Select this to enable watchdog timer for BCM6345 SoCs.
+	  The watchdog timer is stopped when initialized.
+	  It performs full SoC reset.
+
 endmenu
diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
index 8378601..4b19e4c 100644
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -18,4 +18,5 @@ obj-$(CONFIG_ULP_WATCHDOG) += ulp_wdog.o
 obj-$(CONFIG_WDT) += wdt-uclass.o
 obj-$(CONFIG_WDT_SANDBOX) += sandbox_wdt.o
 obj-$(CONFIG_WDT_ASPEED) += ast_wdt.o
+obj-$(CONFIG_WDT_BCM6345) += bcm6345_wdt.o
 obj-$(CONFIG_BCM2835_WDT)       += bcm2835_wdt.o
diff --git a/drivers/watchdog/bcm6345_wdt.c b/drivers/watchdog/bcm6345_wdt.c
new file mode 100644
index 0000000..858b6d5
--- /dev/null
+++ b/drivers/watchdog/bcm6345_wdt.c
@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) 2017 Álvaro Fernández Rojas <noltari@gmail.com>
+ *
+ * Derived from linux/drivers/watchdog/bcm63xx_wdt.c:
+ *	Copyright (C) 2007 Miguel Gaio <miguel.gaio@efixo.com>
+ *	Copyright (C) 2008 Florian Fainelli <florian@openwrt.org>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <wdt.h>
+#include <asm/io.h>
+
+/* WDT Value register */
+#define WDT_VAL_REG		0x0
+#define WDT_VAL_MIN		0x00000002
+#define WDT_VAL_MAX		0xfffffffe
+
+/* WDT Control register */
+#define WDT_CTL_REG		0x4
+#define WDT_CTL_START1_MASK	0x0000ff00
+#define WDT_CTL_START2_MASK	0x000000ff
+#define WDT_CTL_STOP1_MASK	0x0000ee00
+#define WDT_CTL_STOP2_MASK	0x000000ee
+
+struct bcm6345_wdt_priv {
+	void __iomem *regs;
+};
+
+static int bcm6345_wdt_reset(struct udevice *dev)
+{
+	struct bcm6345_wdt_priv *priv = dev_get_priv(dev);
+
+	writel_be(WDT_CTL_START1_MASK, priv->regs + WDT_CTL_REG);
+	writel_be(WDT_CTL_START2_MASK, priv->regs + WDT_CTL_REG);
+
+	return 0;
+}
+
+static int bcm6345_wdt_start(struct udevice *dev, u64 timeout, ulong flags)
+{
+	struct bcm6345_wdt_priv *priv = dev_get_priv(dev);
+
+	if (timeout < WDT_VAL_MIN) {
+		debug("watchdog won't fire with less than 2 ticks\n");
+		timeout = WDT_VAL_MIN;
+	} else if (timeout > WDT_VAL_MAX) {
+		debug("maximum watchdog timeout exceeded\n");
+		timeout = WDT_VAL_MAX;
+	}
+
+	writel_be(timeout, priv->regs + WDT_VAL_REG);
+
+	return bcm6345_wdt_reset(dev);
+}
+
+static int bcm6345_wdt_expire_now(struct udevice *dev, ulong flags)
+{
+	return bcm6345_wdt_start(dev, WDT_VAL_MIN, flags);
+}
+
+static int bcm6345_wdt_stop(struct udevice *dev)
+{
+	struct bcm6345_wdt_priv *priv = dev_get_priv(dev);
+
+	writel_be(WDT_CTL_STOP1_MASK, priv->regs + WDT_CTL_REG);
+	writel_be(WDT_CTL_STOP2_MASK, priv->regs + WDT_CTL_REG);
+
+	return 0;
+}
+
+static const struct wdt_ops bcm6345_wdt_ops = {
+	.expire_now = bcm6345_wdt_expire_now,
+	.reset = bcm6345_wdt_reset,
+	.start = bcm6345_wdt_start,
+	.stop = bcm6345_wdt_stop,
+};
+
+static const struct udevice_id bcm6345_wdt_ids[] = {
+	{ .compatible = "brcm,bcm6345-wdt" },
+	{ /* sentinel */ }
+};
+
+static int bcm6345_wdt_probe(struct udevice *dev)
+{
+	struct bcm6345_wdt_priv *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);
+
+	bcm6345_wdt_stop(dev);
+
+	return 0;
+}
+
+U_BOOT_DRIVER(wdt_bcm6345) = {
+	.name = "wdt_bcm6345",
+	.id = UCLASS_WDT,
+	.of_match = bcm6345_wdt_ids,
+	.ops = &bcm6345_wdt_ops,
+	.priv_auto_alloc_size = sizeof(struct bcm6345_wdt_priv),
+	.probe = bcm6345_wdt_probe,
+};
-- 
2.1.4

[U-Boot] [PATCH 1/8] dm: watchdog: add BCM6345 watchdog driver

[Simon Glass]

On 12 May 2017 at 17:19, Álvaro Fernández Rojas <noltari@gmail.com> wrote:
> This driver is a simplified version of linux/drivers/watchdog/bcm63xx_wdt.c
>
> Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
> ---
>  drivers/watchdog/Kconfig       |   8 +++
>  drivers/watchdog/Makefile      |   1 +
>  drivers/watchdog/bcm6345_wdt.c | 109 +++++++++++++++++++++++++++++++++++++++++
>  3 files changed, 118 insertions(+)
>  create mode 100644 drivers/watchdog/bcm6345_wdt.c
>

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

[U-Boot] [PATCH 2/8] mips: bmips: add bcm6345-wdt driver support for BCM6358

[Álvaro Fernández Rojas]

This driver controls the watchdog present on this SoC.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
---
 arch/mips/dts/brcm,bcm6358.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/mips/dts/brcm,bcm6358.dtsi b/arch/mips/dts/brcm,bcm6358.dtsi
index 0dad998..5d8399c 100644
--- a/arch/mips/dts/brcm,bcm6358.dtsi
+++ b/arch/mips/dts/brcm,bcm6358.dtsi
@@ -87,6 +87,12 @@
 			#reset-cells = <1>;
 		};
 
+		wdt: watchdog at fffe005c {
+			compatible = "brcm,bcm6345-wdt";
+			reg = <0xfffe005c 0xc>;
+			clocks = <&periph_osc>;
+		};
+
 		gpio1: gpio-controller at fffe0080 {
 			compatible = "brcm,bcm6345-gpio";
 			reg = <0xfffe0080 0x4>, <0xfffe0088 0x4>;
-- 
2.1.4

[U-Boot] [PATCH 2/8] mips: bmips: add bcm6345-wdt driver support for BCM6358

[Simon Glass]

On 12 May 2017 at 17:19, Álvaro Fernández Rojas <noltari@gmail.com> wrote:
> This driver controls the watchdog present on this SoC.
>
> Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
> ---
>  arch/mips/dts/brcm,bcm6358.dtsi | 6 ++++++
>  1 file changed, 6 insertions(+)
>

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

[U-Boot] [PATCH 3/8] mips: bmips: add bcm6345-wdt driver support for BCM6328

[Álvaro Fernández Rojas]

This driver controls the watchdog present on this SoC.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
---
 arch/mips/dts/brcm,bcm6328.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/mips/dts/brcm,bcm6328.dtsi b/arch/mips/dts/brcm,bcm6328.dtsi
index 3926885..36dd8bc 100644
--- a/arch/mips/dts/brcm,bcm6328.dtsi
+++ b/arch/mips/dts/brcm,bcm6328.dtsi
@@ -78,6 +78,12 @@
 			mask = <0x1>;
 		};
 
+		wdt: watchdog at 1000005c {
+			compatible = "brcm,bcm6345-wdt";
+			reg = <0x1000005c 0xc>;
+			clocks = <&periph_osc>;
+		};
+
 		gpio: gpio-controller at 10000084 {
 			compatible = "brcm,bcm6345-gpio";
 			reg = <0x10000084 0x4>, <0x1000008c 0x4>;
-- 
2.1.4

[U-Boot] [PATCH 3/8] mips: bmips: add bcm6345-wdt driver support for BCM6328

[Simon Glass]

On 12 May 2017 at 17:19, Álvaro Fernández Rojas <noltari@gmail.com> wrote:
> This driver controls the watchdog present on this SoC.
>
> Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
> ---
>  arch/mips/dts/brcm,bcm6328.dtsi | 6 ++++++
>  1 file changed, 6 insertions(+)
>

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

[U-Boot] [PATCH 4/8] mips: bmips: add bcm6345-wdt driver support for BCM63268

[Álvaro Fernández Rojas]

This driver controls the watchdog present on this SoC.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
---
 arch/mips/dts/brcm,bcm63268.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/mips/dts/brcm,bcm63268.dtsi b/arch/mips/dts/brcm,bcm63268.dtsi
index b03763f..a3b7e73 100644
--- a/arch/mips/dts/brcm,bcm63268.dtsi
+++ b/arch/mips/dts/brcm,bcm63268.dtsi
@@ -84,6 +84,12 @@
 			#reset-cells = <1>;
 		};
 
+		wdt: watchdog at 1000009c {
+			compatible = "brcm,bcm6345-wdt";
+			reg = <0x1000009c 0xc>;
+			clocks = <&periph_osc>;
+		};
+
 		gpio1: gpio-controller at 100000c0 {
 			compatible = "brcm,bcm6345-gpio";
 			reg = <0x100000c0 0x4>, <0x100000c8 0x4>;
-- 
2.1.4

[U-Boot] [PATCH 4/8] mips: bmips: add bcm6345-wdt driver support for BCM63268

[Simon Glass]

On 12 May 2017 at 17:19, Álvaro Fernández Rojas <noltari@gmail.com> wrote:
> This driver controls the watchdog present on this SoC.
>
> Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
> ---
>  arch/mips/dts/brcm,bcm63268.dtsi | 6 ++++++
>  1 file changed, 6 insertions(+)

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

[U-Boot] [PATCH 5/8] dm: sysreset: add watchdog-reboot driver

[Álvaro Fernández Rojas]

Add a new sysreset driver that uses the recently added watchdog support.
It performs a full SoC reset by calling wdt_expire_now op.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
---
 drivers/sysreset/Kconfig             |  6 ++++
 drivers/sysreset/Makefile            |  1 +
 drivers/sysreset/sysreset_watchdog.c | 57 ++++++++++++++++++++++++++++++++++++
 3 files changed, 64 insertions(+)
 create mode 100644 drivers/sysreset/sysreset_watchdog.c

diff --git a/drivers/sysreset/Kconfig b/drivers/sysreset/Kconfig
index b2f7464..a6d48e8 100644
--- a/drivers/sysreset/Kconfig
+++ b/drivers/sysreset/Kconfig
@@ -31,4 +31,10 @@ config SYSRESET_SYSCON
 	help
 	  Reboot support for generic SYSCON mapped register reset.
 
+config SYSRESET_WATCHDOG
+	bool "Enable support for watchdog reboot driver"
+	select WDT
+	help
+	  Reboot support for generic watchdog reset.
+
 endmenu
diff --git a/drivers/sysreset/Makefile b/drivers/sysreset/Makefile
index bd352e7..b683811 100644
--- a/drivers/sysreset/Makefile
+++ b/drivers/sysreset/Makefile
@@ -7,6 +7,7 @@
 obj-$(CONFIG_SYSRESET) += sysreset-uclass.o
 obj-$(CONFIG_SYSRESET_PSCI) += sysreset_psci.o
 obj-$(CONFIG_SYSRESET_SYSCON) += sysreset_syscon.o
+obj-$(CONFIG_SYSRESET_WATCHDOG) += sysreset_watchdog.o
 
 ifndef CONFIG_SPL_BUILD
 obj-$(CONFIG_ROCKCHIP_RK3036) += sysreset_rk3036.o
diff --git a/drivers/sysreset/sysreset_watchdog.c b/drivers/sysreset/sysreset_watchdog.c
new file mode 100644
index 0000000..caeb039
--- /dev/null
+++ b/drivers/sysreset/sysreset_watchdog.c
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2017 Álvaro Fernández Rojas <noltari@gmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <errno.h>
+#include <sysreset.h>
+#include <wdt.h>
+
+struct wdt_reboot_priv {
+	struct udevice *wdt;
+};
+
+static int wdt_reboot_request(struct udevice *dev, enum sysreset_t type)
+{
+	struct wdt_reboot_priv *priv = dev_get_priv(dev);
+
+	wdt_expire_now(priv->wdt, 0);
+
+	return -EINPROGRESS;
+}
+
+static struct sysreset_ops wdt_reboot_ops = {
+	.request = wdt_reboot_request,
+};
+
+int wdt_reboot_probe(struct udevice *dev)
+{
+	struct wdt_reboot_priv *priv = dev_get_priv(dev);
+	int err;
+
+	err = uclass_get_device_by_phandle(UCLASS_WDT, dev,
+					   "wdt", &priv->wdt);
+	if (err) {
+		error("unable to find wdt device\n");
+		return err;
+	}
+
+	return 0;
+}
+
+static const struct udevice_id wdt_reboot_ids[] = {
+	{ .compatible = "wdt-reboot" },
+	{ /* sentinel */ }
+};
+
+U_BOOT_DRIVER(wdt_reboot) = {
+	.name = "wdt_reboot",
+	.id = UCLASS_SYSRESET,
+	.of_match = wdt_reboot_ids,
+	.ops = &wdt_reboot_ops,
+	.priv_auto_alloc_size = sizeof(struct wdt_reboot_priv),
+	.probe = wdt_reboot_probe,
+};
-- 
2.1.4

[U-Boot] [PATCH 5/8] dm: sysreset: add watchdog-reboot driver

[Simon Glass]

On 12 May 2017 at 17:19, Álvaro Fernández Rojas <noltari@gmail.com> wrote:
> Add a new sysreset driver that uses the recently added watchdog support.
> It performs a full SoC reset by calling wdt_expire_now op.
>
> Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
> ---
>  drivers/sysreset/Kconfig             |  6 ++++
>  drivers/sysreset/Makefile            |  1 +
>  drivers/sysreset/sysreset_watchdog.c | 57 ++++++++++++++++++++++++++++++++++++
>  3 files changed, 64 insertions(+)
>  create mode 100644 drivers/sysreset/sysreset_watchdog.c
>

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

Please see below.

> diff --git a/drivers/sysreset/Kconfig b/drivers/sysreset/Kconfig
> index b2f7464..a6d48e8 100644
> --- a/drivers/sysreset/Kconfig
> +++ b/drivers/sysreset/Kconfig
> @@ -31,4 +31,10 @@ config SYSRESET_SYSCON
>         help
>           Reboot support for generic SYSCON mapped register reset.
>
> +config SYSRESET_WATCHDOG
> +       bool "Enable support for watchdog reboot driver"
> +       select WDT
> +       help
> +         Reboot support for generic watchdog reset.
> +
>  endmenu
> diff --git a/drivers/sysreset/Makefile b/drivers/sysreset/Makefile
> index bd352e7..b683811 100644
> --- a/drivers/sysreset/Makefile
> +++ b/drivers/sysreset/Makefile
> @@ -7,6 +7,7 @@
>  obj-$(CONFIG_SYSRESET) += sysreset-uclass.o
>  obj-$(CONFIG_SYSRESET_PSCI) += sysreset_psci.o
>  obj-$(CONFIG_SYSRESET_SYSCON) += sysreset_syscon.o
> +obj-$(CONFIG_SYSRESET_WATCHDOG) += sysreset_watchdog.o
>
>  ifndef CONFIG_SPL_BUILD
>  obj-$(CONFIG_ROCKCHIP_RK3036) += sysreset_rk3036.o
> diff --git a/drivers/sysreset/sysreset_watchdog.c b/drivers/sysreset/sysreset_watchdog.c
> new file mode 100644
> index 0000000..caeb039
> --- /dev/null
> +++ b/drivers/sysreset/sysreset_watchdog.c
> @@ -0,0 +1,57 @@
> +/*
> + * Copyright (C) 2017 Álvaro Fernández Rojas <noltari@gmail.com>
> + *
> + * SPDX-License-Identifier:    GPL-2.0+
> + */
> +
> +#include <common.h>
> +#include <dm.h>
> +#include <errno.h>
> +#include <sysreset.h>
> +#include <wdt.h>
> +
> +struct wdt_reboot_priv {
> +       struct udevice *wdt;
> +};
> +
> +static int wdt_reboot_request(struct udevice *dev, enum sysreset_t type)
> +{
> +       struct wdt_reboot_priv *priv = dev_get_priv(dev);
> +
> +       wdt_expire_now(priv->wdt, 0);

Missing error check?

> +
> +       return -EINPROGRESS;
> +}
> +
> +static struct sysreset_ops wdt_reboot_ops = {
> +       .request = wdt_reboot_request,
> +};
> +
> +int wdt_reboot_probe(struct udevice *dev)
> +{
> +       struct wdt_reboot_priv *priv = dev_get_priv(dev);
> +       int err;
> +
> +       err = uclass_get_device_by_phandle(UCLASS_WDT, dev,
> +                                          "wdt", &priv->wdt);
> +       if (err) {
> +               error("unable to find wdt device\n");
> +               return err;
> +       }
> +
> +       return 0;
> +}
> +
> +static const struct udevice_id wdt_reboot_ids[] = {
> +       { .compatible = "wdt-reboot" },
> +       { /* sentinel */ }
> +};
> +
> +U_BOOT_DRIVER(wdt_reboot) = {
> +       .name = "wdt_reboot",
> +       .id = UCLASS_SYSRESET,
> +       .of_match = wdt_reboot_ids,
> +       .ops = &wdt_reboot_ops,
> +       .priv_auto_alloc_size = sizeof(struct wdt_reboot_priv),
> +       .probe = wdt_reboot_probe,
> +};
> --
> 2.1.4
>

[U-Boot] [PATCH 6/8] mips: bmips: add wdt-reboot driver support for BCM6358

[Álvaro Fernández Rojas]

This driver allows rebooting the SoC by calling wdt_expire_now op.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
---
 arch/mips/dts/brcm,bcm6358.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/mips/dts/brcm,bcm6358.dtsi b/arch/mips/dts/brcm,bcm6358.dtsi
index 5d8399c..4f63cf8 100644
--- a/arch/mips/dts/brcm,bcm6358.dtsi
+++ b/arch/mips/dts/brcm,bcm6358.dtsi
@@ -93,6 +93,11 @@
 			clocks = <&periph_osc>;
 		};
 
+		wdt-reboot {
+			compatible = "wdt-reboot";
+			wdt = <&wdt>;
+		};
+
 		gpio1: gpio-controller at fffe0080 {
 			compatible = "brcm,bcm6345-gpio";
 			reg = <0xfffe0080 0x4>, <0xfffe0088 0x4>;
-- 
2.1.4

[U-Boot] [PATCH 6/8] mips: bmips: add wdt-reboot driver support for BCM6358

[Simon Glass]

On 12 May 2017 at 17:19, Álvaro Fernández Rojas <noltari@gmail.com> wrote:
> This driver allows rebooting the SoC by calling wdt_expire_now op.
>
> Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
> ---
>  arch/mips/dts/brcm,bcm6358.dtsi | 5 +++++
>  1 file changed, 5 insertions(+)
>

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

[U-Boot] [PATCH 7/8] mips: bmips: add wdt-reboot driver support for BCM6328

[Álvaro Fernández Rojas]

This driver allows rebooting the SoC by calling wdt_expire_now op.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
---
 arch/mips/dts/brcm,bcm6328.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/mips/dts/brcm,bcm6328.dtsi b/arch/mips/dts/brcm,bcm6328.dtsi
index 36dd8bc..a996075 100644
--- a/arch/mips/dts/brcm,bcm6328.dtsi
+++ b/arch/mips/dts/brcm,bcm6328.dtsi
@@ -84,6 +84,11 @@
 			clocks = <&periph_osc>;
 		};
 
+		wdt-reboot {
+			compatible = "wdt-reboot";
+			wdt = <&wdt>;
+		};
+
 		gpio: gpio-controller at 10000084 {
 			compatible = "brcm,bcm6345-gpio";
 			reg = <0x10000084 0x4>, <0x1000008c 0x4>;
-- 
2.1.4

[U-Boot] [PATCH 7/8] mips: bmips: add wdt-reboot driver support for BCM6328

[Simon Glass]

On 12 May 2017 at 17:19, Álvaro Fernández Rojas <noltari@gmail.com> wrote:
> This driver allows rebooting the SoC by calling wdt_expire_now op.
>
> Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
> ---
>  arch/mips/dts/brcm,bcm6328.dtsi | 5 +++++
>  1 file changed, 5 insertions(+)
>

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

[U-Boot] [PATCH 8/8] mips: bmips: add wdt-reboot driver support for BCM63268

[Álvaro Fernández Rojas]

This driver allows rebooting the SoC by calling wdt_expire_now op.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
---
 arch/mips/dts/brcm,bcm63268.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/mips/dts/brcm,bcm63268.dtsi b/arch/mips/dts/brcm,bcm63268.dtsi
index a3b7e73..113a96b 100644
--- a/arch/mips/dts/brcm,bcm63268.dtsi
+++ b/arch/mips/dts/brcm,bcm63268.dtsi
@@ -90,6 +90,11 @@
 			clocks = <&periph_osc>;
 		};
 
+		wdt-reboot {
+			compatible = "wdt-reboot";
+			wdt = <&wdt>;
+		};
+
 		gpio1: gpio-controller at 100000c0 {
 			compatible = "brcm,bcm6345-gpio";
 			reg = <0x100000c0 0x4>, <0x100000c8 0x4>;
-- 
2.1.4

[U-Boot] [PATCH 8/8] mips: bmips: add wdt-reboot driver support for BCM63268

[Simon Glass]

On 12 May 2017 at 17:19, Álvaro Fernández Rojas <noltari@gmail.com> wrote:
> This driver allows rebooting the SoC by calling wdt_expire_now op.
>
> Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
> ---
>  arch/mips/dts/brcm,bcm63268.dtsi | 5 +++++
>  1 file changed, 5 insertions(+)
>

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

[U-Boot] [PATCH v2 0/8] mips: bmips: add bcm6345 watchdog support

[Álvaro Fernández Rojas]

Adds support for Broadcom MIPS BCM6345 watchdog controller.
Also adds a generic watchdog sysreset driver to allow rebooting by expiring
the SoC watchdog.
This is needed for some specific Broadcom MIPS SoCs where pll_conf if bugged
and it can't be used to perform SoC reboots, like in BCM6348 (a1 rev).

v2: add changes requested by Simon Glass.

Álvaro Fernández Rojas (8):
  dm: watchdog: add BCM6345 watchdog driver
  mips: bmips: add bcm6345-wdt driver support for BCM6358
  mips: bmips: add bcm6345-wdt driver support for BCM6328
  mips: bmips: add bcm6345-wdt driver support for BCM63268
  dm: sysreset: add watchdog-reboot driver
  mips: bmips: add wdt-reboot driver support for BCM6358
  mips: bmips: add wdt-reboot driver support for BCM6328
  mips: bmips: add wdt-reboot driver support for BCM63268

 arch/mips/dts/brcm,bcm63268.dtsi     |  11 ++++
 arch/mips/dts/brcm,bcm6328.dtsi      |  11 ++++
 arch/mips/dts/brcm,bcm6358.dtsi      |  11 ++++
 drivers/sysreset/Kconfig             |   6 ++
 drivers/sysreset/Makefile            |   1 +
 drivers/sysreset/sysreset_watchdog.c |  60 +++++++++++++++++++
 drivers/watchdog/Kconfig             |   8 +++
 drivers/watchdog/Makefile            |   1 +
 drivers/watchdog/bcm6345_wdt.c       | 110 +++++++++++++++++++++++++++++++++++
 9 files changed, 219 insertions(+)
 create mode 100644 drivers/sysreset/sysreset_watchdog.c
 create mode 100644 drivers/watchdog/bcm6345_wdt.c

-- 
2.1.4

[U-Boot] [PATCH v2 1/8] dm: watchdog: add BCM6345 watchdog driver

[Álvaro Fernández Rojas]

This driver is a simplified version of linux/drivers/watchdog/bcm63xx_wdt.c

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

 drivers/watchdog/Kconfig       |   8 +++
 drivers/watchdog/Makefile      |   1 +
 drivers/watchdog/bcm6345_wdt.c | 110 +++++++++++++++++++++++++++++++++++++++++
 3 files changed, 119 insertions(+)
 create mode 100644 drivers/watchdog/bcm6345_wdt.c

diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 22a7c4f..b911233 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -54,4 +54,12 @@ config WDT_ASPEED
 	  It currently does not support Boot Flash Addressing Mode Detection or
 	  Second Boot.
 
+config WDT_BCM6345
+	bool "BCM6345 watchdog timer support"
+	depends on WDT && ARCH_BMIPS
+	help
+	  Select this to enable watchdog timer for BCM6345 SoCs.
+	  The watchdog timer is stopped when initialized.
+	  It performs full SoC reset.
+
 endmenu
diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
index 8378601..4b19e4c 100644
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -18,4 +18,5 @@ obj-$(CONFIG_ULP_WATCHDOG) += ulp_wdog.o
 obj-$(CONFIG_WDT) += wdt-uclass.o
 obj-$(CONFIG_WDT_SANDBOX) += sandbox_wdt.o
 obj-$(CONFIG_WDT_ASPEED) += ast_wdt.o
+obj-$(CONFIG_WDT_BCM6345) += bcm6345_wdt.o
 obj-$(CONFIG_BCM2835_WDT)       += bcm2835_wdt.o
diff --git a/drivers/watchdog/bcm6345_wdt.c b/drivers/watchdog/bcm6345_wdt.c
new file mode 100644
index 0000000..c6b02ec
--- /dev/null
+++ b/drivers/watchdog/bcm6345_wdt.c
@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) 2017 Álvaro Fernández Rojas <noltari@gmail.com>
+ *
+ * Derived from linux/drivers/watchdog/bcm63xx_wdt.c:
+ *	Copyright (C) 2007 Miguel Gaio <miguel.gaio@efixo.com>
+ *	Copyright (C) 2008 Florian Fainelli <florian@openwrt.org>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <wdt.h>
+#include <asm/io.h>
+
+/* WDT Value register */
+#define WDT_VAL_REG		0x0
+#define WDT_VAL_MIN		0x00000002
+#define WDT_VAL_MAX		0xfffffffe
+
+/* WDT Control register */
+#define WDT_CTL_REG		0x4
+#define WDT_CTL_START1_MASK	0x0000ff00
+#define WDT_CTL_START2_MASK	0x000000ff
+#define WDT_CTL_STOP1_MASK	0x0000ee00
+#define WDT_CTL_STOP2_MASK	0x000000ee
+
+struct bcm6345_wdt_priv {
+	void __iomem *regs;
+};
+
+static int bcm6345_wdt_reset(struct udevice *dev)
+{
+	struct bcm6345_wdt_priv *priv = dev_get_priv(dev);
+
+	writel_be(WDT_CTL_START1_MASK, priv->regs + WDT_CTL_REG);
+	writel_be(WDT_CTL_START2_MASK, priv->regs + WDT_CTL_REG);
+
+	return 0;
+}
+
+static int bcm6345_wdt_start(struct udevice *dev, u64 timeout, ulong flags)
+{
+	struct bcm6345_wdt_priv *priv = dev_get_priv(dev);
+
+	if (timeout < WDT_VAL_MIN) {
+		debug("watchdog won't fire with less than 2 ticks\n");
+		timeout = WDT_VAL_MIN;
+	} else if (timeout > WDT_VAL_MAX) {
+		debug("maximum watchdog timeout exceeded\n");
+		timeout = WDT_VAL_MAX;
+	}
+
+	writel_be(timeout, priv->regs + WDT_VAL_REG);
+
+	return bcm6345_wdt_reset(dev);
+}
+
+static int bcm6345_wdt_expire_now(struct udevice *dev, ulong flags)
+{
+	return bcm6345_wdt_start(dev, WDT_VAL_MIN, flags);
+}
+
+static int bcm6345_wdt_stop(struct udevice *dev)
+{
+	struct bcm6345_wdt_priv *priv = dev_get_priv(dev);
+
+	writel_be(WDT_CTL_STOP1_MASK, priv->regs + WDT_CTL_REG);
+	writel_be(WDT_CTL_STOP2_MASK, priv->regs + WDT_CTL_REG);
+
+	return 0;
+}
+
+static const struct wdt_ops bcm6345_wdt_ops = {
+	.expire_now = bcm6345_wdt_expire_now,
+	.reset = bcm6345_wdt_reset,
+	.start = bcm6345_wdt_start,
+	.stop = bcm6345_wdt_stop,
+};
+
+static const struct udevice_id bcm6345_wdt_ids[] = {
+	{ .compatible = "brcm,bcm6345-wdt" },
+	{ /* sentinel */ }
+};
+
+static int bcm6345_wdt_probe(struct udevice *dev)
+{
+	struct bcm6345_wdt_priv *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);
+
+	bcm6345_wdt_stop(dev);
+
+	return 0;
+}
+
+U_BOOT_DRIVER(wdt_bcm6345) = {
+	.name = "wdt_bcm6345",
+	.id = UCLASS_WDT,
+	.of_match = bcm6345_wdt_ids,
+	.ops = &bcm6345_wdt_ops,
+	.priv_auto_alloc_size = sizeof(struct bcm6345_wdt_priv),
+	.probe = bcm6345_wdt_probe,
+};
-- 
2.1.4

[U-Boot] [PATCH v2 2/8] mips: bmips: add bcm6345-wdt driver support for BCM6358

[Álvaro Fernández Rojas]

This driver controls the watchdog present on this SoC.

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 | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/mips/dts/brcm,bcm6358.dtsi b/arch/mips/dts/brcm,bcm6358.dtsi
index 0dad998..5d8399c 100644
--- a/arch/mips/dts/brcm,bcm6358.dtsi
+++ b/arch/mips/dts/brcm,bcm6358.dtsi
@@ -87,6 +87,12 @@
 			#reset-cells = <1>;
 		};
 
+		wdt: watchdog at fffe005c {
+			compatible = "brcm,bcm6345-wdt";
+			reg = <0xfffe005c 0xc>;
+			clocks = <&periph_osc>;
+		};
+
 		gpio1: gpio-controller at fffe0080 {
 			compatible = "brcm,bcm6345-gpio";
 			reg = <0xfffe0080 0x4>, <0xfffe0088 0x4>;
-- 
2.1.4

[U-Boot] [PATCH v2 3/8] mips: bmips: add bcm6345-wdt driver support for BCM6328

[Álvaro Fernández Rojas]

This driver controls the watchdog present on this SoC.

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 | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/mips/dts/brcm,bcm6328.dtsi b/arch/mips/dts/brcm,bcm6328.dtsi
index 3926885..36dd8bc 100644
--- a/arch/mips/dts/brcm,bcm6328.dtsi
+++ b/arch/mips/dts/brcm,bcm6328.dtsi
@@ -78,6 +78,12 @@
 			mask = <0x1>;
 		};
 
+		wdt: watchdog at 1000005c {
+			compatible = "brcm,bcm6345-wdt";
+			reg = <0x1000005c 0xc>;
+			clocks = <&periph_osc>;
+		};
+
 		gpio: gpio-controller at 10000084 {
 			compatible = "brcm,bcm6345-gpio";
 			reg = <0x10000084 0x4>, <0x1000008c 0x4>;
-- 
2.1.4

[U-Boot] [PATCH v2 4/8] mips: bmips: add bcm6345-wdt driver support for BCM63268

[Álvaro Fernández Rojas]

This driver controls the watchdog present on this SoC.

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 | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/mips/dts/brcm,bcm63268.dtsi b/arch/mips/dts/brcm,bcm63268.dtsi
index b03763f..a3b7e73 100644
--- a/arch/mips/dts/brcm,bcm63268.dtsi
+++ b/arch/mips/dts/brcm,bcm63268.dtsi
@@ -84,6 +84,12 @@
 			#reset-cells = <1>;
 		};
 
+		wdt: watchdog at 1000009c {
+			compatible = "brcm,bcm6345-wdt";
+			reg = <0x1000009c 0xc>;
+			clocks = <&periph_osc>;
+		};
+
 		gpio1: gpio-controller at 100000c0 {
 			compatible = "brcm,bcm6345-gpio";
 			reg = <0x100000c0 0x4>, <0x100000c8 0x4>;
-- 
2.1.4

[U-Boot] [PATCH v2 5/8] dm: sysreset: add watchdog-reboot driver

[Álvaro Fernández Rojas]

Add a new sysreset driver that uses the recently added watchdog support.
It performs a full SoC reset by calling wdt_expire_now op.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
 v2: introduce changes requested by Simon Glass:
  - Check wdt_expire_now() return for errors.

 drivers/sysreset/Kconfig             |  6 ++++
 drivers/sysreset/Makefile            |  1 +
 drivers/sysreset/sysreset_watchdog.c | 60 ++++++++++++++++++++++++++++++++++++
 3 files changed, 67 insertions(+)
 create mode 100644 drivers/sysreset/sysreset_watchdog.c

diff --git a/drivers/sysreset/Kconfig b/drivers/sysreset/Kconfig
index b2f7464..a6d48e8 100644
--- a/drivers/sysreset/Kconfig
+++ b/drivers/sysreset/Kconfig
@@ -31,4 +31,10 @@ config SYSRESET_SYSCON
 	help
 	  Reboot support for generic SYSCON mapped register reset.
 
+config SYSRESET_WATCHDOG
+	bool "Enable support for watchdog reboot driver"
+	select WDT
+	help
+	  Reboot support for generic watchdog reset.
+
 endmenu
diff --git a/drivers/sysreset/Makefile b/drivers/sysreset/Makefile
index bd352e7..b683811 100644
--- a/drivers/sysreset/Makefile
+++ b/drivers/sysreset/Makefile
@@ -7,6 +7,7 @@
 obj-$(CONFIG_SYSRESET) += sysreset-uclass.o
 obj-$(CONFIG_SYSRESET_PSCI) += sysreset_psci.o
 obj-$(CONFIG_SYSRESET_SYSCON) += sysreset_syscon.o
+obj-$(CONFIG_SYSRESET_WATCHDOG) += sysreset_watchdog.o
 
 ifndef CONFIG_SPL_BUILD
 obj-$(CONFIG_ROCKCHIP_RK3036) += sysreset_rk3036.o
diff --git a/drivers/sysreset/sysreset_watchdog.c b/drivers/sysreset/sysreset_watchdog.c
new file mode 100644
index 0000000..304ed05
--- /dev/null
+++ b/drivers/sysreset/sysreset_watchdog.c
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2017 Álvaro Fernández Rojas <noltari@gmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <errno.h>
+#include <sysreset.h>
+#include <wdt.h>
+
+struct wdt_reboot_priv {
+	struct udevice *wdt;
+};
+
+static int wdt_reboot_request(struct udevice *dev, enum sysreset_t type)
+{
+	struct wdt_reboot_priv *priv = dev_get_priv(dev);
+	int ret;
+
+	ret = wdt_expire_now(priv->wdt, 0);
+	if (ret)
+		return ret;
+
+	return -EINPROGRESS;
+}
+
+static struct sysreset_ops wdt_reboot_ops = {
+	.request = wdt_reboot_request,
+};
+
+int wdt_reboot_probe(struct udevice *dev)
+{
+	struct wdt_reboot_priv *priv = dev_get_priv(dev);
+	int err;
+
+	err = uclass_get_device_by_phandle(UCLASS_WDT, dev,
+					   "wdt", &priv->wdt);
+	if (err) {
+		error("unable to find wdt device\n");
+		return err;
+	}
+
+	return 0;
+}
+
+static const struct udevice_id wdt_reboot_ids[] = {
+	{ .compatible = "wdt-reboot" },
+	{ /* sentinel */ }
+};
+
+U_BOOT_DRIVER(wdt_reboot) = {
+	.name = "wdt_reboot",
+	.id = UCLASS_SYSRESET,
+	.of_match = wdt_reboot_ids,
+	.ops = &wdt_reboot_ops,
+	.priv_auto_alloc_size = sizeof(struct wdt_reboot_priv),
+	.probe = wdt_reboot_probe,
+};
-- 
2.1.4

[U-Boot] [PATCH v2 6/8] mips: bmips: add wdt-reboot driver support for BCM6358

[Álvaro Fernández Rojas]

This driver allows rebooting the SoC by calling wdt_expire_now op.

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 | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/mips/dts/brcm,bcm6358.dtsi b/arch/mips/dts/brcm,bcm6358.dtsi
index 5d8399c..4f63cf8 100644
--- a/arch/mips/dts/brcm,bcm6358.dtsi
+++ b/arch/mips/dts/brcm,bcm6358.dtsi
@@ -93,6 +93,11 @@
 			clocks = <&periph_osc>;
 		};
 
+		wdt-reboot {
+			compatible = "wdt-reboot";
+			wdt = <&wdt>;
+		};
+
 		gpio1: gpio-controller at fffe0080 {
 			compatible = "brcm,bcm6345-gpio";
 			reg = <0xfffe0080 0x4>, <0xfffe0088 0x4>;
-- 
2.1.4

[U-Boot] [PATCH v2 7/8] mips: bmips: add wdt-reboot driver support for BCM6328

[Álvaro Fernández Rojas]

This driver allows rebooting the SoC by calling wdt_expire_now op.

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 | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/mips/dts/brcm,bcm6328.dtsi b/arch/mips/dts/brcm,bcm6328.dtsi
index 36dd8bc..a996075 100644
--- a/arch/mips/dts/brcm,bcm6328.dtsi
+++ b/arch/mips/dts/brcm,bcm6328.dtsi
@@ -84,6 +84,11 @@
 			clocks = <&periph_osc>;
 		};
 
+		wdt-reboot {
+			compatible = "wdt-reboot";
+			wdt = <&wdt>;
+		};
+
 		gpio: gpio-controller at 10000084 {
 			compatible = "brcm,bcm6345-gpio";
 			reg = <0x10000084 0x4>, <0x1000008c 0x4>;
-- 
2.1.4

[U-Boot] [PATCH v2 8/8] mips: bmips: add wdt-reboot driver support for BCM63268

[Álvaro Fernández Rojas]

This driver allows rebooting the SoC by calling wdt_expire_now op.

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 | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/mips/dts/brcm,bcm63268.dtsi b/arch/mips/dts/brcm,bcm63268.dtsi
index a3b7e73..113a96b 100644
--- a/arch/mips/dts/brcm,bcm63268.dtsi
+++ b/arch/mips/dts/brcm,bcm63268.dtsi
@@ -90,6 +90,11 @@
 			clocks = <&periph_osc>;
 		};
 
+		wdt-reboot {
+			compatible = "wdt-reboot";
+			wdt = <&wdt>;
+		};
+
 		gpio1: gpio-controller at 100000c0 {
 			compatible = "brcm,bcm6345-gpio";
 			reg = <0x100000c0 0x4>, <0x100000c8 0x4>;
-- 
2.1.4

[U-Boot] [PATCH v2 0/8] mips: bmips: add bcm6345 watchdog support

[Daniel Schwierzeck]

Am 16.05.2017 um 18:29 schrieb Álvaro Fernández Rojas:
> Adds support for Broadcom MIPS BCM6345 watchdog controller.
> Also adds a generic watchdog sysreset driver to allow rebooting by expiring
> the SoC watchdog.
> This is needed for some specific Broadcom MIPS SoCs where pll_conf if bugged
> and it can't be used to perform SoC reboots, like in BCM6348 (a1 rev).
> 
> v2: add changes requested by Simon Glass.
> 
> Álvaro Fernández Rojas (8):
>   dm: watchdog: add BCM6345 watchdog driver
>   mips: bmips: add bcm6345-wdt driver support for BCM6358
>   mips: bmips: add bcm6345-wdt driver support for BCM6328
>   mips: bmips: add bcm6345-wdt driver support for BCM63268
>   dm: sysreset: add watchdog-reboot driver
>   mips: bmips: add wdt-reboot driver support for BCM6358
>   mips: bmips: add wdt-reboot driver support for BCM6328
>   mips: bmips: add wdt-reboot driver support for BCM63268
> 
>  arch/mips/dts/brcm,bcm63268.dtsi     |  11 ++++
>  arch/mips/dts/brcm,bcm6328.dtsi      |  11 ++++
>  arch/mips/dts/brcm,bcm6358.dtsi      |  11 ++++
>  drivers/sysreset/Kconfig             |   6 ++
>  drivers/sysreset/Makefile            |   1 +
>  drivers/sysreset/sysreset_watchdog.c |  60 +++++++++++++++++++
>  drivers/watchdog/Kconfig             |   8 +++
>  drivers/watchdog/Makefile            |   1 +
>  drivers/watchdog/bcm6345_wdt.c       | 110 +++++++++++++++++++++++++++++++++++
>  9 files changed, 219 insertions(+)
>  create mode 100644 drivers/sysreset/sysreset_watchdog.c
>  create mode 100644 drivers/watchdog/bcm6345_wdt.c
> 

series applied to u-boot-mips, thanks.

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