[coreboot-gerrit] Change in coreboot[master]: soc/intel/jasperlake: Disable IPU based on devicetree

[Maulik V Vaghela (Code Review)]

Maulik V Vaghela has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/44270 )

Change subject: soc/intel/jasperlake: Disable IPU based on devicetree
......................................................................

soc/intel/jasperlake: Disable IPU based on devicetree

FSP enables IPU by default even if its disabled in
devicetree. We need to fill FSP upd based on the
device enablement in devicetree.

BUG=None
BRANCH=None
TEST=IPU is disabled and doesn't show in lspci.

Change-Id: I0f9a40e85427fd88bb12a40770ecf7b939b1d8cd
Signed-off-by: Maulik V Vaghela 
---
M src/soc/intel/jasperlake/romstage/fsp_params.c
1 file changed, 7 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/70/44270/1

diff --git a/src/soc/intel/jasperlake/romstage/fsp_params.c b/src/soc/intel/jasperlake/romstage/fsp_params.c
index 809ae80..9207a82 100644
--- a/src/soc/intel/jasperlake/romstage/fsp_params.c
+++ b/src/soc/intel/jasperlake/romstage/fsp_params.c
@@ -66,10 +66,16 @@
    	m_cfg->CpuTraceHubMode = config->TraceHubMode;
    }

+	/* IPU configuration */
+	/* By default IPU is enabled, need to disable in FSP if pci device is disabled */
+	dev = pcidev_path_on_root(SA_DEVFN_IPU);
+	if (!is_dev_enabled(dev)) {
+		m_cfg->SaIpuEnable = 0;
+	}
+
    /* Change VmxEnable UPD value according to ENABLE_VMX Kconfig */
    m_cfg->VmxEnable = CONFIG(ENABLE_VMX);

-
    /* Enable SMBus controller based on config */
    m_cfg->SmbusEnable = config->SmbusEnable;