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soc/intel/apollolake: Allow toggling of GMM in devicetree in Gemini Lake 

Enables Gaussian Mixture Model (GMM) if the pci device is enabled in the
devicetree for Gemini Lake

This ports commit 03ddd190fd

BUG=b:151115705
BRANCH=none
TEST=Flashed to Chromebook, PCI device enabled in cbmem, userspace app
that uses device still works

Change-Id: I72b1dd78705894f0462c7fbe89b76551950c2392
Signed-off-by: Franklin He <franklinh@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39579
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
This commit is contained in:
Franklin He 2020-03-16 12:31:01 +11:00 committed by Patrick Georgi
parent b0b3219666
commit 117a66070a
2 changed files with 7 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/soc/intel/apollolake/chip.c
View File

@ -612,6 +612,7 @@ static void glk_fsp_silicon_init_params_cb(
{
#if CONFIG(SOC_INTEL_GLK)
uint8_t port;
struct device *dev;
for (port = 0; port < APOLLOLAKE_USB2_PORT_MAX; port++) {
if (!cfg->usb2eye[port].Usb20OverrideEn)
@ -627,7 +628,8 @@ static void glk_fsp_silicon_init_params_cb(
cfg->usb2eye[port].Usb20IUsbTxEmphasisEn;
}
silconfig->Gmm = 0;
dev = pcidev_path_on_root(SA_GLK_DEVFN_GMM);
silconfig->Gmm = dev ? dev->enabled : 0;
/* On Geminilake, we need to override the default FSP PCIe de-emphasis
* settings using the device tree settings. This is because PCIe

4
src/soc/intel/apollolake/include/soc/pci_devs.h
View File

@ -46,6 +46,10 @@
#define SA_DEVFN_IPU PCI_DEVFN(SA_DEV_SLOT_IPU, 0)
#define SA_DEV_IPU PCI_DEV(0, SA_DEV_SLOT_IPU, 0)
#define SA_GLK_DEV_SLOT_GMM 0x03
#define SA_GLK_DEVFN_GMM PCI_DEVFN(SA_GLK_DEV_SLOT_GMM, 0)
#define SA_GLK_DEV_GMM PCI_DEV(0, SA_GLK_DEV_SLOT_GMM, 0)
/* PCH Devices */
#define PCH_DEV_SLOT_NPK 0x00