[coreboot-gerrit] Change in coreboot[master]: mainboard/intel/adlrvp: Enable PCH PCIE device over x1 slot

[Subrata Banik (Code Review)]

Subrata Banik has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/48080 )

Change subject: mainboard/intel/adlrvp: Enable PCH PCIE device over x1 slot
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mainboard/intel/adlrvp: Enable PCH PCIE device over x1 slot

List of changes:
1. Enable Root Port 8 aka 0:0x1c:7
2. Assign free running clock for RP8
3. Driven OEB 7:GPP_A7 and OEB 6:GPP_E5 low

TEST=Able to detect PCIE SD card over x1 slot
localhost ~ # dmesg | grep mmc
[ 3.643755] mmc0: SDHCI controller on PCI [0000:02:00.0] using ADMA
[ 3.825201] mmc0: new ultra high speed DDR50 SDHC card at address 17f8
[ 3.835452] mmcblk0: mmc0:17f8 SE16G 14.4 GiB
[ 3.849158] mmcblk0: p1

Change-Id: Ibea37b8de4dd020ff0108ec90ea6f8bcfaa4fb17
Signed-off-by: Subrata Banik 
---
M src/mainboard/intel/adlrvp/devicetree.cb
M src/mainboard/intel/adlrvp/gpio.c
2 files changed, 11 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/80/48080/1

diff --git a/src/mainboard/intel/adlrvp/devicetree.cb b/src/mainboard/intel/adlrvp/devicetree.cb
index 80edb92..f2f768a 100644
--- a/src/mainboard/intel/adlrvp/devicetree.cb
+++ b/src/mainboard/intel/adlrvp/devicetree.cb
@@ -51,6 +51,12 @@
    register "PcieClkSrcUsage[5]" = "0x5"
    register "PcieRpClkReqDetect[5]" = "1"

+	# Enable PCH PCIE RP 8 using free running CLK (0x80)
+	register "PcieRpEnable[7]" = "1"
+	register "PcieClkSrcClkReq[7]" = "7"
+	register "PcieClkSrcUsage[7]" = "0x80"
+	register "PcieRpClkReqDetect[7]" = "1"
+
    # Enable PCH PCIE RP 9 using CLK 1
    register "PcieRpEnable[8]" = "1"
    register "PcieClkSrcClkReq[1]" = "1"
@@ -245,7 +251,7 @@
    	device pci 1c.4 on  end # RP5
    	device pci 1c.5 on  end # RP6
    	device pci 1c.6 off end # RP7
-		device pci 1c.7 off end # RP8
+		device pci 1c.7 on  end # RP8
    	device pci 1d.0 on  end # RP9
    	device pci 1d.1 off end # RP10
    	device pci 1d.2 on  end # RP11
diff --git a/src/mainboard/intel/adlrvp/gpio.c b/src/mainboard/intel/adlrvp/gpio.c
index 89e6f58..4cb8c3a 100644
--- a/src/mainboard/intel/adlrvp/gpio.c
+++ b/src/mainboard/intel/adlrvp/gpio.c
@@ -72,6 +72,10 @@
    PAD_CFG_GPO(GPP_B4, 1, PLTRST),
    /* M.2_PCH_SSD_PWREN */
    PAD_CFG_GPO(GPP_D16, 1, PLTRST),
+	/* SRCCLK_OEB7 */
+	PAD_CFG_GPO(GPP_A7, 0, PLTRST),
+	/* SRCCLK_OEB6 */
+	PAD_CFG_GPO(GPP_E5, 0, PLTRST),

/* M.2_SSD_PDET_R */
    PAD_CFG_NF(GPP_A12, NONE, DEEP, NF1),