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| author | Matt Papageorge <matthewpapa07@gmail.com> | 2020-07-30 15:22:46 -0500 |
|---|---|---|
| committer | Furquan Shaikh <furquan@google.com> | 2020-08-28 17:50:50 +0000 |
| commit | b87effe1dde3cc3f81a6afef073009ba808e11a7 (patch) | |
| tree | 5c7af146e915094379da2ff00aa46af2e76c7c67 /src | |
| parent | b1c7ed326a2f49997fef537f925e8fb883dc3d0c (diff) | |
| download | coreboot-b87effe1dde3cc3f81a6afef073009ba808e11a7.tar.xz | |
soc/amd/picasso/romstage: Set SATA enable UPD if controller is enabled
FSP has recently added support for a UPD switch to power gate SATA. This
change adds the coreboot side of the feature. To avoid having two SATA
enable options, the value of the sata_enable UPD is determined by the
enable state of the AHCI controller in the platform devicetree.
BUG=b:162302027
BRANCH=zork
TEST=Verify AHCI controller can be hidden/disabled.
Change-Id: I48bf94a7e6249db6079a6e3de7456a536d54a242
Signed-off-by: Matt Papageorge <matthewpapa07@gmail.com>
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44067
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/amd/picasso/romstage.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/soc/amd/picasso/romstage.c b/src/soc/amd/picasso/romstage.c index 0accc49cfa..b96743101c 100644 --- a/src/soc/amd/picasso/romstage.c +++ b/src/soc/amd/picasso/romstage.c @@ -64,6 +64,29 @@ static bool devtree_hda_dev_enabled(void) } +static const struct device_path sata_path[] = { + { + .type = DEVICE_PATH_PCI, + .pci.devfn = PCIE_GPP_B_DEVFN + }, + { + .type = DEVICE_PATH_PCI, + .pci.devfn = SATA_DEVFN + }, +}; + +static bool devtree_sata_dev_enabled(void) +{ + const struct device *ahci_dev; + + ahci_dev = find_dev_nested_path(pci_root_bus(), sata_path, ARRAY_SIZE(sata_path)); + + if (!ahci_dev) + return false; + + return ahci_dev->enabled; +} + void platform_fsp_memory_init_params_cb(FSPM_UPD *mupd, uint32_t version) { FSP_M_CONFIG *mcfg = &mupd->FspmConfig; @@ -115,6 +138,7 @@ void platform_fsp_memory_init_params_cb(FSPM_UPD *mupd, uint32_t version) mcfg->telemetry_vddcr_soc_slope = config->telemetry_vddcr_soc_slope; mcfg->telemetry_vddcr_soc_offset = config->telemetry_vddcr_soc_offset; mcfg->hd_audio_enable = devtree_hda_dev_enabled(); + mcfg->sata_enable = devtree_sata_dev_enabled(); } asmlinkage void car_stage_entry(void) |