[coreboot-gerrit] Change in coreboot[master]: soc/intel/cannonlake: Plumb TetonGlacierMode into dt

[Edward O'Callaghan (Code Review)]

Edward O'Callaghan has submitted this change. ( https://review.coreboot.org/c/coreboot/+/38846 )

Change subject: soc/intel/cannonlake: Plumb TetonGlacierMode into dt
......................................................................

soc/intel/cannonlake: Plumb TetonGlacierMode into dt

The following plumbs through the enabling of Intel's TetonGlacierMode
allows for reconfiguring the PCIe lanes at runtime for hybrid drives
to be accessable via devicetree.

BUG=b:149171631
BRANCH=none
TEST=Swap between x4 NVMe drives and 2x2 Teton Glacier hybrid drives and
run lsblk, lspci, and nvme tools to confirm dynamic PCIe configuration
on Puff.

Change-Id: Id9a72161494db6a4da4abd3302b06df7c70634ab
Signed-off-by: Edward O'Callaghan 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38846
Tested-by: build bot (Jenkins) 
Reviewed-by: Furquan Shaikh 
---
M src/soc/intel/cannonlake/chip.h
M src/soc/intel/cannonlake/fsp_params.c
2 files changed, 6 insertions(+), 0 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Furquan Shaikh: Looks good to me, approved

diff --git a/src/soc/intel/cannonlake/chip.h b/src/soc/intel/cannonlake/chip.h
index fd37d26..752ec1f 100644
--- a/src/soc/intel/cannonlake/chip.h
+++ b/src/soc/intel/cannonlake/chip.h
@@ -242,6 +242,9 @@
     * Setting to 0 (default) disables Heci1 and hides the device from OS */
    uint8_t HeciEnabled;

+	/* Enables support for Teton Glacier hybrid storage device */
+	uint8_t TetonGlacierMode;
+
    /* PL1 Override value in Watts */
    uint32_t tdp_pl1_override;
    /* PL2 Override value in Watts */
diff --git a/src/soc/intel/cannonlake/fsp_params.c b/src/soc/intel/cannonlake/fsp_params.c
index f1b8446..80918f1 100644
--- a/src/soc/intel/cannonlake/fsp_params.c
+++ b/src/soc/intel/cannonlake/fsp_params.c
@@ -374,6 +374,9 @@
 #endif
    params->Device4Enable = config->Device4Enable;

+	/* Teton Glacier hybrid storage support */
+	params->TetonGlacierMode = config->TetonGlacierMode;
+
    /* VrConfig Settings for 5 domains
     * 0 = System Agent, 1 = IA Core, 2 = Ring,
     * 3 = GT unsliced,  4 = GT sliced */