On 29.08.2017 07:09, Bin Meng wrote:
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 <[email protected]>
Signed-off-by: Bin Meng <[email protected]>
---
arch/x86/cpu/baytrail/acpi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/cpu/baytrail/acpi.c b/arch/x86/cpu/baytrail/acpi.c
index cbefdf8..7aac634 100644
--- a/arch/x86/cpu/baytrail/acpi.c
+++ b/arch/x86/cpu/baytrail/acpi.c
@@ -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;
Very nice Bin, this does exactly what I was missing. :)
Tested-by: Stefan Roese <[email protected]>
Thanks,
Stefan
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