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soc/intel/skylake: enable GMM in devicetree 

Enables Gaussian Mixture Model (GMM) only if the corresponding pci
device is enabled in the device tree

Tested on Asrock H110M DVS motherboard

Change-Id: I21409adf85b70bccc30dd8e12a03ad7921544b3c
Signed-off-by: Maxim Polyakov <max.senia.poliak@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35168
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
This commit is contained in:
Maxim Polyakov 2019-08-30 18:04:02 +03:00 committed by Patrick Georgi
parent 539b97df62
commit 03ddd190fd
2 changed files with 7 additions and 0 deletions
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4
src/soc/intel/skylake/chip_fsp20.c
View File

@ -441,6 +441,10 @@ void platform_fsp_silicon_init_params_cb(FSPS_UPD *supd)
dev->enabled = 0;
params->XdciEnable = dev->enabled;
/* Enable or disable Gaussian Mixture Model in devicetree */
dev = pcidev_path_on_root(SA_DEVFN_GMM);
params->GmmEnable = dev ? dev->enabled : 0;
/*
* Send VR specific mailbox commands:
* 000b - no VR specific command sent

3
src/soc/intel/skylake/include/soc/pci_devs.h
View File

@ -42,6 +42,9 @@
#define SA_DEVFN_IGD PCI_DEVFN(SA_DEV_SLOT_IGD, 0)
#define SA_DEV_IGD PCI_DEV(0, SA_DEV_SLOT_IGD, 0)
#define SA_DEV_SLOT_GMM 0x08
#define SA_DEVFN_GMM PCI_DEVFN(SA_DEV_SLOT_GMM, 0)
#define SA_DEV_GMM PCI_DEV(0, SA_DEV_SLOT_GMM, 0)
/* PCH Devices */
#define PCH_DEV_SLOT_ISH 0x13