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ec/google/chromeec: Add RFWU into EC RAM for Retimer firmware update

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The RFWU byte is defined as Bits[3:0] for port number and Bits[7:4] for
operations. The supported operations are:
RETIMER_FW_UPDATE_PORT_INFO	0
RETIMER_FW_UPDATE_PD_SUSPEND	1
RETIMER_FW_UPDATE_PD_RESUME	2
RETIMER_FW_UPDATE_GET_MUX	3
RETIMER_FW_UPDATE_SET_USB	4
RETIMER_FW_UPDATE_SET_SAFE	5
RETIMER_FW_UPDATE_SET_TBT	6
RETIMER_FW_UPDATE_DISCONNECT	7

BUG=b:162528867
TEST=Booted to kernel and verified RFWU entry from ACPI DSDT ERAM field.

Signed-off-by: John Zhao <john.zhao@intel.com>
Change-Id: I1ba04c6357b6fd0cc33ffce33e7e430539bace79
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49051
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
John Zhao
2021-01-01 12:25:56 -08:00
committed by Patrick Georgi
parent 297d27b8bb
commit 408e5ab6c9
1 changed files with 1 additions and 0 deletions
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src/ec/google/chromeec/acpi/ec.asl
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@@ -81,6 +81,7 @@ Device (EC0)
Offset (0x12),
BTID, 8, // Battery index that host wants to read
USPP, 8, // USB Port Power
RFWU, 8, // Retimer Firmware Update
}
#if CONFIG(EC_GOOGLE_CHROMEEC_ACPI_MEMMAP)