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| author | Furquan Shaikh <furquan@google.com> | 2019-03-19 20:34:11 -0700 |
|---|---|---|
| committer | Furquan Shaikh <furquan@google.com> | 2019-03-20 13:49:54 +0000 |
| commit | 4dfd8d690d17a484eef83006a843d561dd7ca13d (patch) | |
| tree | 41ec1290d9c22adff76323b8a2087211fa99e8ab /src/soc/intel/cannonlake/fsp_params.c | |
| parent | 52d79fbc6e1243a7ecaf34835893476c5a303271 (diff) | |
| download | coreboot-4dfd8d690d17a484eef83006a843d561dd7ca13d.tar.xz | |
soc/intel/cannonlake: Fix return values for get_param_value
Commit 41483c9 (soc/intel/cannonlake: Add required FSP UPD changes for
CML) changed the enum values for PCH_SERIAL_IO_MODE so that 0 is
invalid and valid values start from 1. However, get_param_value was
not updated to correctly subtract 1 before returning any value. This
change adds a macro PCH_SERIAL_IO_INDEX to apply the subtract 1
operation on any value that get_param_value needs to return.
BUG=b:128946016
TEST=Verified that hatch boots successfully.
Change-Id: I4e32fcd1efe4a535251f0ec58662a2dc5f70e8b0
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31974
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Reviewed-by: Maulik V Vaghela <maulik.v.vaghela@intel.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/soc/intel/cannonlake/fsp_params.c')
| -rw-r--r-- | src/soc/intel/cannonlake/fsp_params.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/src/soc/intel/cannonlake/fsp_params.c b/src/soc/intel/cannonlake/fsp_params.c index e3a2310d5c..77d82d64f8 100644 --- a/src/soc/intel/cannonlake/fsp_params.c +++ b/src/soc/intel/cannonlake/fsp_params.c @@ -40,22 +40,28 @@ static const int serial_io_dev[] = { PCH_DEVFN_UART2 }; +/* + * Given an enum for PCH_SERIAL_IO_MODE, 1 needs to be subtracted to get the FSP + * UPD expected value for Serial IO since valid enum index starts from 1. + */ +#define PCH_SERIAL_IO_INDEX(x) ((x) - 1) + static uint8_t get_param_value(const config_t *config, uint32_t dev_offset) { struct device *dev; dev = dev_find_slot(0, serial_io_dev[dev_offset]); if (!dev || !dev->enabled) - return PchSerialIoDisabled; + return PCH_SERIAL_IO_INDEX(PchSerialIoDisabled); if ((config->SerialIoDevMode[dev_offset] >= PchSerialIoMax) || (config->SerialIoDevMode[dev_offset] == PchSerialIoNotInitialized)) - return PchSerialIoPci; + return PCH_SERIAL_IO_INDEX(PchSerialIoPci); /* * Correct Enum index starts from 1, so subtract 1 while returning value */ - return config->SerialIoDevMode[dev_offset] - 1; + return PCH_SERIAL_IO_INDEX(config->SerialIoDevMode[dev_offset]); } #if IS_ENABLED(CONFIG_SOC_INTEL_COMETLAKE) |