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x86: sysreset: Implement the get_last() method

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Add a default implementation of this method which always indicates that
the last reset was a power-on reset. This is the most likely type of reset
and without a PCH-specific driver we cannot determine any other type.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass 2019-05-02 10:52:15 -06:00 • committed by Bin Meng
parent d6b1ba2fb9
commit f77ab00e89
1 changed files with 6 additions and 0 deletions
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6
drivers/sysreset/sysreset_x86.c
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@ -98,6 +98,11 @@ static int x86_sysreset_request(struct udevice *dev, enum sysreset_t type)
return -EINPROGRESS;
}
static int x86_sysreset_get_last(struct udevice *dev)
{
return SYSRESET_POWER;
}
#ifdef CONFIG_EFI_LOADER
void __efi_runtime EFIAPI efi_reset_system(
enum efi_reset_type reset_type,
@ -140,6 +145,7 @@ static const struct udevice_id x86_sysreset_ids[] = {
static struct sysreset_ops x86_sysreset_ops = {
.request = x86_sysreset_request,
.get_last = x86_sysreset_get_last,
};
U_BOOT_DRIVER(x86_sysreset) = {