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soc/amd/cezanne/fsp_m_params: set HD Audio enable UPD from devicetree 

Pass the info if the non-graphics HD audio controller device is enabled
or disabled in the board's devicetree via a UPD to the FSP so that it
knows if it should enable or disable the corresponding device.

TEST=When adding "device ref hda on end" to the devicetree of
amd/majolica the non-graphics HD Audio controller shows up in lspci and
when that line isn't added the PCIe device doesn't show up.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I9f5e164d308906bfc788e5c2674c13c7b2ebf471
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55680
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
This commit is contained in:
Felix Held 2021-06-19 00:06:02 +02:00
parent 95d4ee8168
commit 42583de6b8
1 changed files with 24 additions and 0 deletions
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24
src/soc/amd/cezanne/fsp_m_params.c
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@ -36,6 +36,29 @@ static bool devtree_gfx_hda_dev_enabled(void)
return gfx_hda_dev->enabled;
}
static const struct device_path hda_path[] = {
{
.type = DEVICE_PATH_PCI,
.pci.devfn = PCIE_ABC_A_DEVFN
},
{
.type = DEVICE_PATH_PCI,
.pci.devfn = HD_AUDIO_DEVFN
},
};
static bool devtree_hda_dev_enabled(void)
{
const struct device *hda_dev;
hda_dev = find_dev_nested_path(pci_root_bus(), hda_path, ARRAY_SIZE(hda_path));
if (!hda_dev)
return false;
return hda_dev->enabled;
}
static const struct device_path sata0_path[] = {
{
.type = DEVICE_PATH_PCI,
@ -202,6 +225,7 @@ void platform_fsp_memory_init_params_cb(FSPM_UPD *mupd, uint32_t version)
mcfg->pspp_policy = config->pspp_policy;
mcfg->enable_nb_azalia = devtree_gfx_hda_dev_enabled();
mcfg->hda_enable = devtree_hda_dev_enabled();
mcfg->sata_enable = devtree_sata_dev_enabled();
if (config->usb_phy_custom)