mb/google/brya/variants/redrix: Configure GPIOs according to schematics

Update initial gpio configuration for redrix

BUG=b:192052098
TEST=FW_NAME=redrix emerge-brya coreboot

Signed-off-by: Wisley Chen <wisley.chen@quanta.corp-partner.google.com>
Change-Id: I2294fb3bdba832677038cfe24b5014014c7f03e9
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56428
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

2 files changed, 125 insertions, 0 deletions

diff --git a/src/mainboard/google/brya/variants/redrix/Makefile.inc b/src/mainboard/google/brya/variants/redrix/Makefile.inc
new file mode 100644
index 000000000000..8fe978f6effa
--- /dev/null
+++ b/src/mainboard/google/brya/variants/redrix/Makefile.inc
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
+bootblock-y += gpio.c
+
+ramstage-y += gpio.c
diff --git a/src/mainboard/google/brya/variants/redrix/gpio.c b/src/mainboard/google/brya/variants/redrix/gpio.c
new file mode 100644
index 000000000000..f53809e2a832
--- /dev/null
+++ b/src/mainboard/google/brya/variants/redrix/gpio.c
@@ -0,0 +1,121 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <baseboard/gpio.h>
+#include <baseboard/variants.h>
+#include <commonlib/helpers.h>
+#include <soc/gpio.h>
+#include <vendorcode/google/chromeos/chromeos.h>
+
+/* Pad configuration in ramstage */
+static const struct pad_config override_gpio_table[] = {
+	/* A17 : DISP_MISCC ==> NC */
+	PAD_NC(GPP_A17, NONE),
+	/* A19 : DDSP_HPD1 ==> NC */
+	PAD_NC(GPP_A19, NONE),
+	/* A20 : DDSP_HPD2 ==> NC */
+	PAD_NC(GPP_A20, NONE),
+	/* A21 : DDPC_CTRCLK ==> NC */
+	PAD_NC(GPP_A21, NONE),
+	/* A22 : DDPC_CTRLDATA ==> NC */
+	PAD_NC(GPP_A22, NONE),
+
+	/* B3  : PROC_GP2 ==> NC */
+	PAD_NC(GPP_B3, NONE),
+	/* B15  : TIME_SYNC0 ==> NC */
+	PAD_NC(GPP_B15, NONE),
+
+	/* C3 : SML0CLK ==> NC */
+	PAD_NC(GPP_C3, NONE),
+	/* C4 : SML0DATA ==> NC */
+	PAD_NC(GPP_C4, NONE),
+
+	/* D7  : SRCCLKREQ2# ==> NC */
+	PAD_NC(GPP_D7, NONE),
+	/* D13 : ISH_UART0_RXD ==> NC */
+	PAD_NC(GPP_D13, NONE),
+
+	/* E0  : SATAXPCIE0 ==> NC */
+	PAD_NC(GPP_E0, NONE),
+	/* E3  : PROC_GP0 ==> NC */
+	PAD_NC(GPP_E3, NONE),
+	/* E7  : PROC_GP1 ==> NC */
+	PAD_NC(GPP_E7, NONE),
+	/* E20 : DDP2_CTRLCLK ==> NC */
+	PAD_NC(GPP_E20, NONE),
+	/* E22 : DDPA_CTRLCLK ==> NC */
+	PAD_NC(GPP_E22, NONE),
+	/* E23 : DDPA_CTRLDATA ==> NC */
+	PAD_NC(GPP_E23, NONE),
+
+	/* F20 : EXT_PWR_GATE# ==> NC */
+	PAD_NC(GPP_F20, NONE),
+
+	/* H3  : SX_EXIT_HOLDOFF# ==> NC */
+	PAD_NC(GPP_H3, NONE),
+	/* H20 : IMGCLKOUT1 ==> NC */
+	PAD_NC(GPP_H20, NONE),
+	/* H21 : IMGCLKOUT2 ==> Privacy screen */
+	PAD_CFG_GPO(GPP_H21, 0, DEEP),
+
+	/* R6 : I2S_PCH_TX_SPKR_RX ==> NC */
+	PAD_NC(GPP_R6, NONE),
+	/* R7 : I2S_PCH_RX_SPKR_TX ==> NC */
+	PAD_NC(GPP_R7, NONE),
+
+	/* S4 : SNDW2_CLK ==> NC */
+	PAD_NC(GPP_S4, NONE),
+	/* S5 : SNDW2_DATA ==> NC */
+	PAD_NC(GPP_S5, NONE),
+	/* S6 : SNDW3_CLK ==> NC */
+	PAD_NC(GPP_S6, NONE),
+	/* S7 : SNDW3_DATA ==> NC */
+	PAD_NC(GPP_S7, NONE),
+
+};
+
+/* Early pad configuration in bootblock */
+static const struct pad_config early_gpio_table[] = {
+	/* A13 : PMC_I2C_SCL ==> GSC_PCH_INT_ODL */
+	PAD_CFG_GPI_APIC(GPP_A13, NONE, PLTRST, LEVEL, INVERT),
+	/* B7  : ISH_12C1_SDA ==> PCH_I2C_TPM_SDA */
+	PAD_CFG_NF(GPP_B7, NONE, DEEP, NF2),
+	/* B8  : ISH_12C1_SCL ==> PCH_I2C_TPM_SCL */
+	PAD_CFG_NF(GPP_B8, NONE, DEEP, NF2),
+	/*
+	 * D1  : ISH_GP1 ==> FP_RST_ODL
+	 * FP_RST_ODL comes out of reset as hi-z and does not have an external pull-down.
+	 * To ensure proper power sequencing for the FPMCU device, reset signal is driven low
+	 * early on in bootblock, followed by enabling of power. Reset signal is deasserted
+	 * later on in ramstage. Since reset signal is asserted in bootblock, it results in
+	 * FPMCU not working after a S3 resume. This is a known issue.
+	 */
+	PAD_CFG_GPO(GPP_D1, 0, DEEP),
+	/* D2  : ISH_GP2 ==> EN_FP_PWR */
+	PAD_CFG_GPO(GPP_D2, 1, DEEP),
+	/* E0  : SATAXPCIE0 ==> NC */
+	PAD_NC(GPP_E0, NONE),
+	/* E13 : THC0_SPI1_IO2 ==> MEM_CH_SEL */
+	PAD_CFG_GPI(GPP_E13, NONE, DEEP),
+	/* E15 : RSVD_TP ==> PCH_WP_OD */
+	PAD_CFG_GPI_GPIO_DRIVER(GPP_E15, NONE, DEEP),
+	/* E16 : RSVD_TP ==> WWAN_RST_L  */
+	PAD_CFG_GPO(GPP_E16, 0, DEEP),
+	/* H10 : UART0_RXD ==> UART_PCH_RX_DBG_TX */
+	PAD_CFG_NF(GPP_H10, NONE, DEEP, NF2),
+	/* H11 : UART0_TXD ==> UART_PCH_TX_DBG_RX */
+	PAD_CFG_NF(GPP_H11, NONE, DEEP, NF2),
+	/* H13 : I2C7_SCL ==> EN_PP3300_SD */
+	PAD_CFG_GPO(GPP_H13, 1, DEEP),
+};
+
+const struct pad_config *variant_gpio_override_table(size_t *num)
+{
+	*num = ARRAY_SIZE(override_gpio_table);
+	return override_gpio_table;
+}
+
+const struct pad_config *variant_early_gpio_table(size_t *num)
+{
+	*num = ARRAY_SIZE(early_gpio_table);
+	return early_gpio_table;
+}