diff options
| -rw-r--r-- | src/soc/intel/cannonlake/lpc.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/src/soc/intel/cannonlake/lpc.c b/src/soc/intel/cannonlake/lpc.c index c33b3c33d4..c06ce97053 100644 --- a/src/soc/intel/cannonlake/lpc.c +++ b/src/soc/intel/cannonlake/lpc.c @@ -70,19 +70,25 @@ void soc_setup_dmi_pcr_io_dec(uint32_t *gen_io_dec) uint8_t get_pch_series(void) { uint16_t lpc_did_hi_byte; - + uint8_t pch_series = PCH_UNKNOWN_SERIES; /* * Fetch upper 8 bits on LPC device ID to determine PCH type * Adding 1 to the offset to fetch upper 8 bits */ lpc_did_hi_byte = pci_read_config8(PCH_DEV_LPC, PCI_DEVICE_ID + 1); - if (lpc_did_hi_byte == 0x9D) - return PCH_LP; - else if (lpc_did_hi_byte == 0xA3) - return PCH_H; - else - return PCH_UNKNOWN_SERIES; + switch (lpc_did_hi_byte) { + case 0x9D: /* CNL-LP */ + case 0x02: /* CML-LP */ + pch_series = PCH_LP; + break; + case 0xA3: + pch_series = PCH_H; + break; + default: + break; + } + return pch_series; } #if ENV_RAMSTAGE |