mb/purism/librem_14: Update GPIO config

Update GPIO config based on review of latest schematics:

- LAN/WLAN reset lines are NC
- SDIO lines configured via GPP_G0-G7
- DMIC lines are wired directly to codec, not PCH, so GPP_D17-20
  are set to NC
- Pads GPP_H0-H3 are configured for I2S2
- Pads GPP_H7-H9 are straps for board revision, so treated as GPI
- CPU_C10_GATE# is NC
- PWRBTN# does not need an internal pull-up
- GPP_C20-23 are configured for M.2 UART
- SATAXPCIE1/2 and EC SCI/SMI lines do not need internal pull ups
- GPP_C6/C7 set to I2C1 for future use
- GPP_E15 changed from SCI to SMI, edge triggered

Change-Id: If113cfeadf093e10dd84ab827ead594088f02ba1
Signed-off-by: Matt DeVillier <matt.devillier@puri.sm>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52389
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 61 insertions, 60 deletions

diff --git a/src/mainboard/purism/librem_cnl/variants/librem_14/gpio.c b/src/mainboard/purism/librem_cnl/variants/librem_14/gpio.c
index e39c8884f1..a12a305275 100644
--- a/src/mainboard/purism/librem_cnl/variants/librem_14/gpio.c
+++ b/src/mainboard/purism/librem_cnl/variants/librem_14/gpio.c
@@ -129,11 +129,11 @@ static const struct pad_config gpio_table[] = {
 	/* GPP_B15 - NC */
 	PAD_NC(GPP_B15, NONE),
 
-	/* GPP_B16 - LAN_RST */
-	PAD_CFG_GPO(GPP_B16, 0, PLTRST),
+	/* GPP_B16 - NC */
+	PAD_NC(GPP_B16, NONE),
 
-	/* GPP_B17 - WLAN_PCIE_RST */
-	PAD_CFG_GPO(GPP_B17, 0, PLTRST),
+	/* GPP_B17 - NC */
+	PAD_NC(GPP_B17, NONE),
 
 	/* GPP_B18 - NC */
 	PAD_NC(GPP_B18, NONE),
@@ -155,28 +155,29 @@ static const struct pad_config gpio_table[] = {
 
 	/* ------- GPIO Group GPP_G ------- */
 
-	/* GPP_G0 - NC */
-	PAD_NC(GPP_G0, NONE),
+	/* SDIO on M.2 slot */
+	/* GPP_G0 - SD_CMD */
+	PAD_CFG_NF(GPP_G0, NONE, DEEP, NF1),
 
-	/* GPP_G1 - NC */
-	PAD_NC(GPP_G1, NONE),
+	/* GPP_G1 - SD_DATA0 */
+	PAD_CFG_NF(GPP_G1, NONE, DEEP, NF1),
 
-	/* GPP_G2 - NC */
-	PAD_NC(GPP_G2, NONE),
+	/* GPP_G2 - SD_DATA1 */
+	PAD_CFG_NF(GPP_G2, NONE, DEEP, NF1),
 
-	/* GPP_G3 - NC */
-	PAD_NC(GPP_G3, NONE),
+	/* GPP_G3 - SD_DATA2 */
+	PAD_CFG_NF(GPP_G3, NONE, DEEP, NF1),
 
-	/* GPP_G4 - NC */
-	PAD_NC(GPP_G4, NONE),
+	/* GPP_G4 - SD_DATA3 */
+	PAD_CFG_NF(GPP_G4, NONE, DEEP, NF1),
 
-	/* GPP_G5 - NC */
-	PAD_NC(GPP_G5, UP_20K),
+	/* GPP_G5 - SD_CD#, NC */
+	PAD_NC(GPP_G5, DN_20K),
 
-	/* GPP_G6 - NC */
-	PAD_NC(GPP_G6, NONE),
+	/* GPP_G6 - SD_CLK */
+	PAD_CFG_NF(GPP_G6, NONE, DEEP, NF1),
 
-	/* GPP_G7 - NC */
+	/* GPP_G7 - SD_WP, NC */
 	PAD_NC(GPP_G7, DN_20K),
 
 	/* ------- GPIO Group GPP_D ------- */
@@ -232,17 +233,17 @@ static const struct pad_config gpio_table[] = {
 	/* GPP_D16 - NC */
 	PAD_NC(GPP_D16, NONE),
 
-	/* GPP_D17 - DMIC_CLK1 */
-	PAD_CFG_NF(GPP_D17, NONE, DEEP, NF1),
+	/* GPP_D17 - NC */
+	PAD_NC(GPP_D17, NONE),
 
-	/* GPP_D18 - DMIC_DATA1 */
-	PAD_CFG_NF(GPP_D18, NONE, DEEP, NF1),
+	/* GPP_D18 - NC */
+	PAD_NC(GPP_D18, NONE),
 
-	/* GPP_D19 - DMIC_CLK0 */
-	PAD_CFG_NF(GPP_D19, NONE, DEEP, NF1),
+	/* GPP_D19 - NC */
+	PAD_NC(GPP_D19, NONE),
 
-	/* GPP_D20 - DMIC_DATA0 */
-	PAD_CFG_NF(GPP_D20, NONE, DEEP, NF1),
+	/* GPP_D20 - NC */
+	PAD_NC(GPP_D20, NONE),
 
 	/* GPP_D21 - NC */
 	PAD_NC(GPP_D21, NONE),
@@ -329,17 +330,17 @@ static const struct pad_config gpio_table[] = {
 
 	/* ------- GPIO Group GPP_H ------- */
 
-	/* GPP_H0 - M.2_BT_PCMCLK */
-	PAD_NC(GPP_H0, UP_20K),
+	/* GPP_H0 - I2S2_SCLK */
+	PAD_CFG_NF(GPP_H0, NONE, DEEP, NF1),
 
-	/* GPP_H1 - M.2_BT_PCMSYNC */
-	PAD_CFG_NF(GPP_H1, UP_20K, DEEP, NF3),
+	/* GPP_H1 - I2S2_SFRM */
+	PAD_CFG_NF(GPP_H1, NONE, DEEP, NF1),
 
-	/* GPP_H2 - M.2_BT_PCMOUT */
-	PAD_CFG_NF(GPP_H2, UP_20K, DEEP, NF3),
+	/* GPP_H2 - I2S2_TXD */
+	PAD_CFG_NF(GPP_H2, NONE, DEEP, NF1),
 
-	/* GPP_H3 - M.2_BT_PCMIN */
-	PAD_CFG_GPO(GPP_H3, 1, PLTRST),
+	/* GPP_H3 - I2S2_RXD */
+	PAD_CFG_NF(GPP_H3, NONE, DEEP, NF1),
 
 	/* GPP_H4 - NC */
 	PAD_NC(GPP_H4, NONE),
@@ -350,14 +351,14 @@ static const struct pad_config gpio_table[] = {
 	/* GPP_H6 - NC */
 	PAD_NC(GPP_H6, NONE),
 
-	/* GPP_H7 - NC */
-	PAD_NC(GPP_H7, NONE),
+	/* GPP_H7 - MBV_DET1_PCH */
+	PAD_CFG_GPI(GPP_H7, NONE, PLTRST),
 
-	/* GPP_H8 - NC */
-	PAD_NC(GPP_H8, NONE),
+	/* GPP_H8 - MBV_DET2_PCH */
+	PAD_CFG_GPI(GPP_H8, NONE, PLTRST),
 
-	/* GPP_H9 - NC */
-	PAD_NC(GPP_H9, NONE),
+	/* GPP_H9 - MBV_DET3_PCH */
+	PAD_CFG_GPI(GPP_H9, NONE, PLTRST),
 
 	/* GPP_H10 - NC */
 	PAD_NC(GPP_H10, NONE),
@@ -383,8 +384,8 @@ static const struct pad_config gpio_table[] = {
 	/* GPP_H17 - NC */
 	PAD_NC(GPP_H17, NONE),
 
-	/* GPP_H18 - CPU_C10_GATE# */
-	PAD_CFG_NF(GPP_H18, NONE, DEEP, NF1),
+	/* GPP_H18 - NC */
+	PAD_NC(GPP_H18, NONE),
 
 	/* GPP_H19 - NC */
 	PAD_NC(GPP_H19, NONE),
@@ -413,7 +414,7 @@ static const struct pad_config gpio_table[] = {
 	PAD_CFG_NF(GPD2, NATIVE, RSMRST, NF1),
 
 	/* GPD3 - PRWBTN# */
-	PAD_CFG_NF(GPD3, UP_20K, RSMRST, NF1),
+	PAD_CFG_NF(GPD3, NONE, RSMRST, NF1),
 
 	/* GPD4 - SLP_S3# */
 	PAD_CFG_NF(GPD4, NONE, RSMRST, NF1),
@@ -459,11 +460,11 @@ static const struct pad_config gpio_table[] = {
 	/* GPP_C5 - NC */
 	PAD_NC(GPP_C5, NONE),
 
-	/* GPP_C6 - NC */
-	PAD_NC(GPP_C6, NONE),
+	/* GPP_C6 - SMBL1CLK */
+	PAD_CFG_NF(GPP_C6, NONE, DEEP, NF1),
 
-	/* GPP_C7 - NC */
-	PAD_NC(GPP_C7, NONE),
+	/* GPP_C7 - SMBL1DATA */
+	PAD_CFG_NF(GPP_C7, NONE, DEEP, NF1),
 
 	/* GPP_C8 - NC */
 	PAD_NC(GPP_C8, NONE),
@@ -501,17 +502,17 @@ static const struct pad_config gpio_table[] = {
 	/* GPP_C19 - NC */
 	PAD_NC(GPP_C19, NONE),
 
-	/* GPP_C20 - NC */
-	PAD_NC(GPP_C20, NONE),
+	/* GPP_C20 - M.2 UART RXD */
+	PAD_CFG_NF(GPP_C20, NONE, PLTRST, NF1),
 
-	/* GPP_C21 - NC */
-	PAD_NC(GPP_C21, NONE),
+	/* GPP_C21 - M.2 UART TXD */
+	PAD_CFG_NF(GPP_C21, NONE, PLTRST, NF1),
 
-	/* GPP_C22 - NC */
-	PAD_NC(GPP_C22, NONE),
+	/* GPP_C22 - M.2 UART RTS# */
+	PAD_CFG_NF(GPP_C22, NONE, PLTRST, NF1),
 
-	/* GPP_C23 - NC */
-	PAD_NC(GPP_C23, NONE),
+	/* GPP_C23 - M.2 UART CTS# */
+	PAD_CFG_NF(GPP_C23, NONE, PLTRST, NF1),
 
 	/* ------- GPIO Group GPP_E ------- */
 
@@ -519,10 +520,10 @@ static const struct pad_config gpio_table[] = {
 	PAD_NC(GPP_E0, NONE),
 
 	/* GPP_E1 - SATAXPCIE1 */
-	PAD_CFG_NF(GPP_E1, UP_20K, PLTRST, NF1),
+	PAD_CFG_NF(GPP_E1, NONE, PLTRST, NF1),
 
 	/* GPP_E2 - SATAXPCIE2 */
-	PAD_CFG_NF(GPP_E2, UP_20K, PLTRST, NF1),
+	PAD_CFG_NF(GPP_E2, NONE, PLTRST, NF1),
 
 	/* GPP_E3 - NC */
 	PAD_NC(GPP_E3, NONE),
@@ -561,10 +562,10 @@ static const struct pad_config gpio_table[] = {
 	PAD_CFG_NF(GPP_E14, NONE, DEEP, NF1),
 
 	/* GPP_E15 - SMC_EXTSMI# */
-	PAD_CFG_GPI_SCI_LOW(GPP_E15, UP_20K, PLTRST, LEVEL),
+	PAD_CFG_GPI_SMI_LOW(GPP_E15, NONE, DEEP, EDGE_SINGLE),
 
 	/* GPP_E16 - SMC_RUNTIME_SCI# */
-	PAD_CFG_GPI_SCI_LOW(GPP_E16, UP_20K, PLTRST, LEVEL),
+	PAD_CFG_GPI_SCI_LOW(GPP_E16, NONE, PLTRST, LEVEL),
 
 	/* GPP_E17 - EDP_HPD */
 	PAD_CFG_NF(GPP_E17, NONE, DEEP, NF1),