diff options
| author | Vadim Bendebury <vbendeb@chromium.org> | 2014-09-22 18:48:41 -0700 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2015-04-02 17:27:37 +0200 |
| commit | 274ef4186ff7120309ac89343e35ba57608d0f4d (patch) | |
| tree | 45645ad12b746b48421c94d972f19842b6c6cb45 /src/include/boot | |
| parent | 074a028ef715763ecda99386d472c751092150a1 (diff) | |
vpd: retrieve mac addresses and pass them to bootloader
Chrome OS devices firmware usually includes an area called VPD (Vital
Product Data). VPD is a blob of a certain structure, in particular
containing freely defined variable size fields. A field is a tuple of
the field name and field contents.
MAC addresses of the interfaces are stored in VPD as well. Field names
are in the form of 'ethernet_macN', where N is the zero based
interface number.
This patch retrieves the MAC address(es) from the VPD and populates
them in the coreboot table so that they become available to the
bootloader.
BUG=chrome-os-partner:32152, chromium:417117
TEST=with this and other patches in place the storm device tree shows
up with MAC addresses properly initialized.
Change-Id: I955207b3a644cde100cc4b48e51a2ab9a3cb1ba0
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Original-Commit-Id: 1972b9e97b57cc8503c5e4dc496706970ed2ffbe
Original-Change-Id: I12c0d15ca84f60e4824e1056c9be2e81a7ad8e73
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/219443
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9207
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Diffstat (limited to 'src/include/boot')
| -rw-r--r-- | src/include/boot/coreboot_tables.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/include/boot/coreboot_tables.h b/src/include/boot/coreboot_tables.h index 46c1df5e49..0efb8fdb41 100644 --- a/src/include/boot/coreboot_tables.h +++ b/src/include/boot/coreboot_tables.h @@ -263,6 +263,19 @@ struct lb_board_id { uint32_t board_id; }; +#define LB_TAG_MAC_ADDRS 0x0026 +struct mac_address { + uint8_t mac_addr[6]; + uint8_t pad[2]; /* Pad it to 8 bytes to keep it simple. */ +}; + +struct lb_macs { + uint32_t tag; + uint32_t size; + uint32_t count; + struct mac_address mac_addrs[0]; +}; + /* The following structures are for the cmos definitions table */ #define LB_TAG_CMOS_OPTION_TABLE 200 /* cmos header record */ |