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x86: baytrail: acpi: Add full reset bit to the reset register value in FADT

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It was noticed a few times, that the reboot from Linux (reboot command)
is different from the reboot (reset command) under U-Boot. The U-Boot
version does seem to reset the board more deeply (PCI cards etc) than
the Linux reboot.

This is actually caused by missing full reset bit in the reset register
value in the ACPI FADT table.

Reported-by: Stefan Roese <sr@denx.de>
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Bin Meng 2017-08-28 22:09:11 -07:00
parent d2ca80c3d7
commit 3fe6e6e2aa
1 changed files with 1 additions and 1 deletions
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2
arch/x86/cpu/baytrail/acpi.c
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@ -73,7 +73,7 @@ void acpi_create_fadt(struct acpi_fadt *fadt, struct acpi_facs *facs,
fadt->reset_reg.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS;
fadt->reset_reg.addrl = IO_PORT_RESET;
fadt->reset_reg.addrh = 0;
fadt->reset_value = SYS_RST | RST_CPU;
fadt->reset_value = SYS_RST | RST_CPU | FULL_RST;
fadt->x_firmware_ctl_l = (u32)facs;
fadt->x_firmware_ctl_h = 0;