diff options
| author | Hung-Te Lin <hungte@chromium.org> | 2015-07-13 15:49:57 +0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2015-11-19 21:37:47 +0100 |
| commit | b15a0d0a6fdd4cce7f6e22570642d863391fc5c6 (patch) | |
| tree | 6e1981f83013416d03a613aeb2d273d76f9a5e92 /src/commonlib | |
| parent | bca67fb7dc02a6342f6a19738bfd25da21369057 (diff) | |
vendorcode/google/chromeos: Cache VPD data into CBMEM
There are few drawbacks reading VPD from SPI flash in user land, including
"lack of firmware level authority" and "slow reading speed".
Since for many platforms we are already reading VPD in firmware (for
example MAC and serial number), caching the VPD data in CBMEM should
will speed up and simplify user land VPD processing without adding
performance cost.
A new CBMEM ID is added: CBMEM_ID_VPD, referring to a structure containing
raw Google VPD 2.0 structure and can be found by the new LB_TAG_VPD in
Coreboot tables.
BRANCH=smaug
BUG=chrome-os-partner:39945
TEST=emerge-smaug coreboot chromeos-bootimage # and boots successfully.
[pg: lots of changes to make it work with what happened in upstream
since 2013]
Change-Id: If8629ac002d52abed7b480d3d06298665613edbf
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 117a9e88912860a22d250ff0e53a7d40237ddd45
Original-Change-Id: Ic79f424a6e3edfb6c5d168b9661d61a56fab295f
Original-Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/285031
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/12453
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
Diffstat (limited to 'src/commonlib')
| -rw-r--r-- | src/commonlib/include/commonlib/cbmem_id.h | 2 | ||||
| -rw-r--r-- | src/commonlib/include/commonlib/coreboot_tables.h | 1 |
2 files changed, 3 insertions, 0 deletions
diff --git a/src/commonlib/include/commonlib/cbmem_id.h b/src/commonlib/include/commonlib/cbmem_id.h index 580d5eac70..44ab31ecb8 100644 --- a/src/commonlib/include/commonlib/cbmem_id.h +++ b/src/commonlib/include/commonlib/cbmem_id.h @@ -62,6 +62,7 @@ #define CBMEM_ID_VBOOT_HANDOFF 0x780074f0 #define CBMEM_ID_VBOOT_SEL_REG 0x780074f1 #define CBMEM_ID_VBOOT_WORKBUF 0x78007343 +#define CBMEM_ID_VPD 0x56504420 #define CBMEM_ID_WIFI_CALIBRATION 0x57494649 #define CBMEM_ID_TO_NAME_TABLE \ @@ -105,5 +106,6 @@ { CBMEM_ID_VBOOT_HANDOFF, "VBOOT " }, \ { CBMEM_ID_VBOOT_SEL_REG, "VBOOT SEL " }, \ { CBMEM_ID_VBOOT_WORKBUF, "VBOOT WORK " }, \ + { CBMEM_ID_VPD, "VPD " }, \ { CBMEM_ID_WIFI_CALIBRATION, "WIFI CLBR " }, #endif /* _CBMEM_ID_H_ */ diff --git a/src/commonlib/include/commonlib/coreboot_tables.h b/src/commonlib/include/commonlib/coreboot_tables.h index 5e0c87c99d..32c388b037 100644 --- a/src/commonlib/include/commonlib/coreboot_tables.h +++ b/src/commonlib/include/commonlib/coreboot_tables.h @@ -245,6 +245,7 @@ void lb_ramoops(struct lb_header *header); #define LB_TAG_MRC_CACHE 0x0018 #define LB_TAG_ACPI_GNVS 0x0024 #define LB_TAG_WIFI_CALIBRATION 0x0027 +#define LB_TAG_VPD 0x002c struct lb_cbmem_ref { uint32_t tag; uint32_t size; |