[U-Boot] [PATCH 28/40] x86: Add a sysreset driver for the Intel PCH

[Bin Meng]

Hi Simon,

On Wed, Jan 30, 2019 at 12:00 PM Simon Glass <sjg at chromium.org> wrote:
>
> Intel SoCs support a fairly stardard reset mechanism which can support
> powering off the device. Add support for this and enable it by default on
> broadwell, which already has the necessary pm.h header file.
>
> This driver augments the standard x86 sysreset driver.
>

I think we need update the existing sysreset_x86 driver to support
SYSRESET_POWER_OFF, instead of creating a new driver to do such.

We can add a new PCH ioctl code to get the pmbase, and do the ACPI
power off in the sysreset_x86 driver.

> Signed-off-by: Simon Glass <sjg at chromium.org>
> ---
>
>  arch/x86/cpu/broadwell/Kconfig        |   1 +
>  drivers/sysreset/Kconfig              |   9 ++
>  drivers/sysreset/Makefile             |   1 +
>  drivers/sysreset/sysreset_intel_pch.c | 125 ++++++++++++++++++++++++++
>  4 files changed, 136 insertions(+)
>  create mode 100644 drivers/sysreset/sysreset_intel_pch.c
>

Regards,
Bin