soc/amd/picasso/romstage: Set HDA disable UPD if controller disabled
FSP has recently added support for a UPD switch to disable the non-GPU HD Audio controller. This change adds the coreboot side of the feature. To avoid having two HD Audio enable options, the value of the hd_audio_enable UPD is determined by the enable state of the non-GPU HD Audio controller in the platform devicetree. BUG=b:158535201,b:162302028 BRANCH=zork TEST=With the corresponding FSP change applied the non-GPU HD Audio device is hidden when switched off in devicetree and remains present and functional when switched on in devicetree. Change-Id: Ib2965e0742f4148e42a44ddad8ee05f0c4c7237e Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/44680 Reviewed-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Matt Papageorge <matthewpapa07@gmail.com> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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@ -9,11 +9,13 @@
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#include <console/uart.h>
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#include <commonlib/helpers.h>
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#include <console/console.h>
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#include <device/device.h>
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#include <program_loading.h>
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#include <elog.h>
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#include <soc/acpi.h>
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#include <soc/memmap.h>
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#include <soc/mrc_cache.h>
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#include <soc/pci_devs.h>
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#include <types.h>
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#include "chip.h"
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#include <fsp/api.h>
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@ -38,6 +40,30 @@ static void add_chipset_state_cbmem(int unused)
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ROMSTAGE_CBMEM_INIT_HOOK(add_chipset_state_cbmem);
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static const struct device_path hda_path[] = {
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{
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.type = DEVICE_PATH_PCI,
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.pci.devfn = PCIE_GPP_A_DEVFN
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},
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{
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.type = DEVICE_PATH_PCI,
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.pci.devfn = HD_AUDIO_DEVFN
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},
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};
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static bool devtree_hda_dev_enabled(void)
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{
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const struct device *hda_dev;
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hda_dev = find_dev_nested_path(pci_root_bus(), hda_path, ARRAY_SIZE(hda_path));
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if (!hda_dev)
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return false;
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return hda_dev->enabled;
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}
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void platform_fsp_memory_init_params_cb(FSPM_UPD *mupd, uint32_t version)
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{
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FSP_M_CONFIG *mcfg = &mupd->FspmConfig;
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@ -88,6 +114,7 @@ void platform_fsp_memory_init_params_cb(FSPM_UPD *mupd, uint32_t version)
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mcfg->telemetry_vddcr_vdd_offset = config->telemetry_vddcr_vdd_offset;
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mcfg->telemetry_vddcr_soc_slope = config->telemetry_vddcr_soc_slope;
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mcfg->telemetry_vddcr_soc_offset = config->telemetry_vddcr_soc_offset;
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mcfg->hd_audio_enable = devtree_hda_dev_enabled();
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}
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asmlinkage void car_stage_entry(void)
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