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soc/intel/alderlake: Hook up DisableDynamicTccoldHandshake to dev tree 

This commit provides a dev tree setting for partners to enable/disable
TccoldHandshake for the sighting in doc:723158

BUG=b:221461379
BRANCH=firmware-brya-14505.B
TEST=compile ok and FSP UPD is config properly

Change-Id: Ica13b98204acebef7f0b9a4411b4ac19f53cad6e
Signed-off-by: Kane Chen <kane.chen@intel.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68635
Reviewed-by: Jérémy Compostella <jeremy.compostella@intel.com>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Kane Chen 2022-09-27 09:54:30 +08:00 committed by Nick Vaccaro
parent c9f7e115fd
commit 8327a7e7b4
2 changed files with 12 additions and 0 deletions
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7
src/soc/intel/alderlake/chip.h
View File

@ -680,6 +680,13 @@ struct soc_intel_alderlake_config {
* IGD panel configuration
*/
struct i915_gpu_panel_config panel_cfg;
/*
* Enable or Disable Tccold Handshake
* Default is set to 0.
* Set this to 1 in order to disable Tccold Handshake
*/
bool disable_dynamic_tccold_handshake;
};
typedef struct soc_intel_alderlake_config config_t;

5
src/soc/intel/alderlake/romstage/fsp_params.c
View File

@ -270,6 +270,11 @@ static void fill_fspm_tcss_params(FSP_M_CONFIG *m_cfg,
/* TCSS DMA */
m_cfg->TcssDma0En = is_devfn_enabled(SA_DEVFN_TCSS_DMA0);
m_cfg->TcssDma1En = is_devfn_enabled(SA_DEVFN_TCSS_DMA1);
#if CONFIG(SOC_INTEL_RAPTORLAKE)
m_cfg->DisableDynamicTccoldHandshake =
config->disable_dynamic_tccold_handshake;
#endif
}
static void fill_fspm_usb4_params(FSP_M_CONFIG *m_cfg,