leandrof/u-boot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

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

Browse Source 
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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/x86/cpu/baytrail/acpi.c
View File

@ -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;