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| author | Hung-Te Lin <hungte@chromium.org> | 2021-03-11 16:45:54 +0800 |
|---|---|---|
| committer | Hung-Te Lin <hungte@chromium.org> | 2021-03-15 02:28:10 +0000 |
| commit | a79d6e76b852e5e5a4667818722388f1a07497df (patch) | |
| tree | fc16cfdfefda425436ff265ac157504d7b029fb5 /src/mainboard/google/asurada | |
| parent | 2fcbebbbcde4b13df5807d771beeffb0490a9644 (diff) | |
| download | coreboot-a79d6e76b852e5e5a4667818722388f1a07497df.tar.xz | |
mb/google/asurada: get SKU ID from AP strapping pins
The SKU ID for Asurada should come from AP ADC channel 5 and 6.
BUG=None
TEST=make; boots on asurada
Change-Id: I6a00c555f20aca4cd7f8bcee46ee81c17ef6ca3c
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51405
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Diffstat (limited to 'src/mainboard/google/asurada')
| -rw-r--r-- | src/mainboard/google/asurada/boardid.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/src/mainboard/google/asurada/boardid.c b/src/mainboard/google/asurada/boardid.c index 06c21ec36e..c026a6b85e 100644 --- a/src/mainboard/google/asurada/boardid.c +++ b/src/mainboard/google/asurada/boardid.c @@ -10,8 +10,12 @@ #define ADC_LEVELS 15 enum { + /* RAM IDs */ RAM_ID_HIGH_CHANNEL = 4, RAM_ID_LOW_CHANNEL = 3, + /* SKU IDs */ + SKU_ID_HIGH_CHANNEL = 6, + SKU_ID_LOW_CHANNEL = 5, }; static const unsigned int ram_voltages[ADC_LEVELS] = { @@ -58,7 +62,15 @@ static uint32_t get_adc_index(unsigned int channel) uint32_t sku_id(void) { - return 0; + static uint32_t cached_sku_code = BOARD_ID_INIT; + + if (cached_sku_code == BOARD_ID_INIT) { + cached_sku_code = (get_adc_index(SKU_ID_HIGH_CHANNEL) << 4 | + get_adc_index(SKU_ID_LOW_CHANNEL)); + printk(BIOS_DEBUG, "SKU Code: %#02x\n", cached_sku_code); + } + + return cached_sku_code; } uint32_t ram_code(void) |