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authorVadim Bendebury <vbendeb@chromium.org>2014-10-24 15:14:55 -0700
committerPatrick Georgi <pgeorgi@google.com>2015-03-21 10:52:47 +0100
commit522f9c6df168acfbeb91ae21e5b2451c9dde86fb (patch)
tree66f6da8486a587211887b35c90840540c2af7e94 /payloads/libpayload
parentaee78f0dbe3ee9984c8c1b8969a0a4b97c4e5d16 (diff)
downloadcoreboot-522f9c6df168acfbeb91ae21e5b2451c9dde86fb.tar.xz
libpayload: make wifi calibration table available through sysinfo
The WiFi calibration blob saved in the CBMEM by coreboot needs to be visible by depthcharge to supply it to the kernel. BRANCH=storm BUG=chrome-os-partner:32611 TEST=none yet Change-Id: I43a857f073a47ca315d400df4c53d5eb38e91601 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 46a649608e6740e07c562c722fadd8c64e264b5f Original-Change-Id: Iecd8739c9269b58064b3c3275f5376cebcd6804b Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/225506 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/8753 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Diffstat (limited to 'payloads/libpayload')
-rw-r--r--payloads/libpayload/include/coreboot_tables.h1
-rw-r--r--payloads/libpayload/include/sysinfo.h1
-rw-r--r--payloads/libpayload/libc/coreboot.c9
3 files changed, 11 insertions, 0 deletions
diff --git a/payloads/libpayload/include/coreboot_tables.h b/payloads/libpayload/include/coreboot_tables.h
index 13a99787f7..72c2ad8d58 100644
--- a/payloads/libpayload/include/coreboot_tables.h
+++ b/payloads/libpayload/include/coreboot_tables.h
@@ -199,6 +199,7 @@ struct lb_range {
#define CB_TAG_CBMEM_CONSOLE 0x0017
#define CB_TAG_MRC_CACHE 0x0018
#define CB_TAG_ACPI_GNVS 0x0024
+#define CB_TAG_WIFI_CALIBRATION 0x0027
struct cb_cbmem_tab {
uint32_t tag;
uint32_t size;
diff --git a/payloads/libpayload/include/sysinfo.h b/payloads/libpayload/include/sysinfo.h
index 1c49f9dce2..7252f35218 100644
--- a/payloads/libpayload/include/sysinfo.h
+++ b/payloads/libpayload/include/sysinfo.h
@@ -114,6 +114,7 @@ struct sysinfo_t {
void *mrc_cache;
void *acpi_gnvs;
u32 board_id;
+ void *wifi_calibration;
};
extern struct sysinfo_t lib_sysinfo;
diff --git a/payloads/libpayload/libc/coreboot.c b/payloads/libpayload/libc/coreboot.c
index b777e47005..2f4536cbea 100644
--- a/payloads/libpayload/libc/coreboot.c
+++ b/payloads/libpayload/libc/coreboot.c
@@ -183,6 +183,12 @@ static void cb_parse_string(unsigned char *ptr, char **info)
*info = (char *)((struct cb_string *)ptr)->string;
}
+static void cb_parse_wifi_calibration(void *ptr, struct sysinfo_t *info)
+{
+ struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr;
+ info->wifi_calibration = phys_to_virt(cbmem->cbmem_tab);
+}
+
int cb_parse_header(void *addr, int len, struct sysinfo_t *info)
{
struct cb_header *header;
@@ -315,6 +321,9 @@ int cb_parse_header(void *addr, int len, struct sysinfo_t *info)
case CB_TAG_BOARD_ID:
cb_parse_board_id(ptr, info);
break;
+ case CB_TAG_WIFI_CALIBRATION:
+ cb_parse_wifi_calibration(ptr, info);
+ break;
default:
cb_parse_arch_specific(rec, info);
break;