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The patch updates PMC Descriptor which is part of Descriptor Region if
system equipped with Alder lake A0 silicon. This change allows to use
unified Descriptor Region for Alder lake A0(CPU ID:0x906a0) and B0
(CPUD ID:0x906a1) silicons.
BUG=B:187431859
TEST=Verified PMC Descriptor getting modified for Alder lake B0 silicon if
not updated.
coreboot logs appear as below with this patch:
On First boot after flashing the image:
coreboot-coreboot-unknown.9999.4589c0f Wed Jun 9 18:23:43 UTC 2021 bootblock starting (log level: 8)...
CPU: Genuine Intel(R) 0000
CPU: ID 906a0, Alderlake Platform, ucode: 0000001a
..
FMAP: Found "FLASH" version 1.1 at 0x1804000.
FMAP: base = 0x0 size = 0x2000000 #areas = 32
FMAP: area SI_DESC found @ 0 (4096 bytes)
SF: Detected 00 0000 with sector size 0x1000, total 0x2000000
Erasing flash addr 0 + 4 KiB
Update of PMC Descriptor successful, trigger GLOBAL RESET
Next boot after GLOBAL RESET:
coreboot-coreboot-unknown.9999.4589c0f Wed Jun 9 18:23:43 UTC 2021 bootblock starting (log level: 8)...
..
FMAP: area SI_DESC found @ 0 (4096 bytes)
SF: Detected 00 0000 with sector size 0x1000, total 0x2000000
Update of PMC Descriptor is not required!
VBOOT: Loading verstage.
..
CBFS: Found 'fallback/verstage' @0x2264c0 size 0x16b08 in mcache @0xfef84d38
Signed-off-by: Sridhar Siricilla <sridhar.siricilla@intel.com>
Change-Id: I6d9a2ce0f0b3e386eefa1962ce706b58f31a8576
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55254
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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The recent refactor of console UART GPIOs to mainboard's bootblock
caused brya boards to lose the first ~5 lines of the logs from
bootblock. Rename bootblock_mainboard_init to
bootblock_mainboard_early_init so that the UART pads will be ready
by the time the console is initialized.
BUG=b:184319828
TEST=First lines from report_platform.c are now seen in UART output
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I4a4fadcc091bf9b1c9894f9afaf42baff63c73a3
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52062
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
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Add stubbed out GPIO configuration and perform GPIO initialization
during bootblock and ramstage.
BUG=b:174266035
TEST=Build Test
Signed-off-by: Eric Lai <ericr_lai@compal.corp-partner.google.com>
Change-Id: Ia658ab4b466242cf8658abb239f19a9c0a03849a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48065
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
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Add entry point stubs of each stage for Brya. More functionalities will
be added later.
BUG=b:174266035
TEST=Build Test
Signed-off-by: Eric Lai <ericr_lai@compal.corp-partner.google.com>
Change-Id: I44934c05ee32090b6e34648ee02f004c83e93d57
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48063
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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