Re: [U-Boot] [PATCH 2/4] dm: sysreset: x86: Add a sysreset driver

[Bin Meng]

On Mon, Jul 9, 2018 at 10:39 AM, Simon Glass  wrote:
> On 3 July 2018 at 02:48, Bin Meng  wrote:
>> This adds a generic reset driver for x86 processor.
>>
>> Signed-off-by: Bin Meng 
>> ---
>>
>>  drivers/sysreset/Kconfig|  6 +
>>  drivers/sysreset/Makefile   |  1 +
>>  drivers/sysreset/sysreset_x86.c | 49 
>> +
>>  3 files changed, 56 insertions(+)
>>  create mode 100644 drivers/sysreset/sysreset_x86.c
>>
>
> Reviewed-by: Simon Glass 

applied to u-boot-x86, thanks!
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Re: [U-Boot] [PATCH 2/4] dm: sysreset: x86: Add a sysreset driver

[Simon Glass]

On 3 July 2018 at 02:48, Bin Meng  wrote:
> This adds a generic reset driver for x86 processor.
>
> Signed-off-by: Bin Meng 
> ---
>
>  drivers/sysreset/Kconfig|  6 +
>  drivers/sysreset/Makefile   |  1 +
>  drivers/sysreset/sysreset_x86.c | 49 
> +
>  3 files changed, 56 insertions(+)
>  create mode 100644 drivers/sysreset/sysreset_x86.c
>

Reviewed-by: Simon Glass 
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[U-Boot] [PATCH 2/4] dm: sysreset: x86: Add a sysreset driver

[Bin Meng]

This adds a generic reset driver for x86 processor.

Signed-off-by: Bin Meng 
---

 drivers/sysreset/Kconfig|  6 +
 drivers/sysreset/Makefile   |  1 +
 drivers/sysreset/sysreset_x86.c | 49 +
 3 files changed, 56 insertions(+)
 create mode 100644 drivers/sysreset/sysreset_x86.c

diff --git a/drivers/sysreset/Kconfig b/drivers/sysreset/Kconfig
index a6d48e8..2afeadc 100644
--- a/drivers/sysreset/Kconfig
+++ b/drivers/sysreset/Kconfig
@@ -37,4 +37,10 @@ config SYSRESET_WATCHDOG
help
  Reboot support for generic watchdog reset.
 
+config SYSRESET_X86
+   bool "Enable support for x86 processor reboot driver"
+   depends on X86
+   help
+ Reboot support for generic x86 processor reset.
+
 endmenu
diff --git a/drivers/sysreset/Makefile b/drivers/sysreset/Makefile
index 0da58a1..0eb0dc7 100644
--- a/drivers/sysreset/Makefile
+++ b/drivers/sysreset/Makefile
@@ -6,6 +6,7 @@ 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
+obj-$(CONFIG_SYSRESET_X86) += sysreset_x86.o
 obj-$(CONFIG_ARCH_ROCKCHIP) += sysreset_rockchip.o
 obj-$(CONFIG_SANDBOX) += sysreset_sandbox.o
 obj-$(CONFIG_ARCH_STI) += sysreset_sti.o
diff --git a/drivers/sysreset/sysreset_x86.c b/drivers/sysreset/sysreset_x86.c
new file mode 100644
index 000..5943a63
--- /dev/null
+++ b/drivers/sysreset/sysreset_x86.c
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2018, Bin Meng 
+ *
+ * Generic reset driver for x86 processor
+ */
+
+#include 
+#include 
+#include 
+#include 
+#include 
+
+static int x86_sysreset_request(struct udevice *dev, enum sysreset_t type)
+{
+   int value;
+
+   switch (type) {
+   case SYSRESET_WARM:
+   value = SYS_RST | RST_CPU;
+   break;
+   case SYSRESET_COLD:
+   value = SYS_RST | RST_CPU | FULL_RST;
+   break;
+   default:
+   return -ENOSYS;
+   }
+
+   outb(value, IO_PORT_RESET);
+
+   return -EINPROGRESS;
+}
+
+static const struct udevice_id x86_sysreset_ids[] = {
+   { .compatible = "x86,reset" },
+   { }
+};
+
+static struct sysreset_ops x86_sysreset_ops = {
+   .request = x86_sysreset_request,
+};
+
+U_BOOT_DRIVER(x86_sysreset) = {
+   .name = "x86-sysreset",
+   .id = UCLASS_SYSRESET,
+   .of_match = x86_sysreset_ids,
+   .ops = _sysreset_ops,
+   .flags = DM_FLAG_PRE_RELOC,
+};
-- 
2.7.4

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