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| author | Maulik V Vaghela <maulik.v.vaghela@intel.com> | 2019-02-15 11:55:20 +0530 |
|---|---|---|
| committer | Subrata Banik <subrata.banik@intel.com> | 2019-02-28 09:26:01 +0000 |
| commit | db9e9ac30d12ac4fa548c01b907193503a5ae421 (patch) | |
| tree | 6c35b66ab58a5b9d0c40f436e7cdc1b1cd8d3872 /src | |
| parent | ba8af5807c83244c947571caa7f3c488f4e581a1 (diff) | |
| download | coreboot-db9e9ac30d12ac4fa548c01b907193503a5ae421.tar.xz | |
soc/intel/cannonlake: Add PCH series check for CML LP PCH
TEST=Verify PM_STS1 value is is not 0xFF.
Change-Id: I932585f6e7525830bd57ecfc372bf3120e7cca66
Signed-off-by: Maulik V Vaghela <maulik.v.vaghela@intel.com>
Reviewed-on: https://review.coreboot.org/c/31434
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src')
| -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 |