mb/google/trulo/var/orisa: Disable storage devices based on fw_config

Disable devices in variant.c instead of adding probe statements to
devicetree because storage devices need to be enabled when fw_config is
unprovisioned.

BUG=b:345112878
BRANCH=firmware-nissa-15217.B
TEST=emerge-nissa coreboot chromeos-bootimage

Change-Id: I1e5e49c1baa8d2b00134c26cc3b69aa15712b512
Signed-off-by: Amanda Huang <amanda_hwang@compal.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/82907
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-by: Eric Lai <ericllai@google.com>

4 files changed, 78 insertions, 0 deletions

diff --git a/src/mainboard/google/brya/variants/orisa/Makefile.mk b/src/mainboard/google/brya/variants/orisa/Makefile.mk
index cc61780e02..c0c42324f8 100644
--- a/src/mainboard/google/brya/variants/orisa/Makefile.mk
+++ b/src/mainboard/google/brya/variants/orisa/Makefile.mk
@@ -1,7 +1,11 @@
 ## SPDX-License-Identifier: GPL-2.0-only
 
 bootblock-y += gpio.c
+
 romstage-y += gpio.c
 romstage-y += memory.c
+
+ramstage-$(CONFIG_FW_CONFIG) += fw_config.c
 ramstage-y += gpio.c
 ramstage-$(CONFIG_SOC_INTEL_COMMON_BLOCK_HDA_VERB) += hda_verb.c
+ramstage-y += variant.c
diff --git a/src/mainboard/google/brya/variants/orisa/fw_config.c b/src/mainboard/google/brya/variants/orisa/fw_config.c
new file mode 100644
index 0000000000..800fc1f205
--- /dev/null
+++ b/src/mainboard/google/brya/variants/orisa/fw_config.c
@@ -0,0 +1,42 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <baseboard/gpio.h>
+#include <baseboard/variants.h>
+#include <console/console.h>
+#include <fw_config.h>
+
+static const struct pad_config emmc_disable_pads[] = {
+	/* I7  : EMMC_CMD */
+	PAD_NC(GPP_I7, NONE),
+	/* I8  : EMMC_D0 */
+	PAD_NC(GPP_I8, NONE),
+	/* I9  : EMMC_D1 */
+	PAD_NC(GPP_I9, NONE),
+	/* I10 : EMMC_D2 */
+	PAD_NC(GPP_I10, NONE),
+	/* I11 : EMMC_D3 */
+	PAD_NC(GPP_I11, NONE),
+	/* I12 : EMMC_D4 */
+	PAD_NC(GPP_I12, NONE),
+	/* I13 : EMMC_D5 */
+	PAD_NC(GPP_I13, NONE),
+	/* I14 : EMMC_D6 */
+	PAD_NC(GPP_I14, NONE),
+	/* I15 : EMMC_D7 */
+	PAD_NC(GPP_I15, NONE),
+	/* I16 : EMMC_RCLK */
+	PAD_NC(GPP_I16, NONE),
+	/* I17 : EMMC_CLK */
+	PAD_NC(GPP_I17, NONE),
+	/* I18 : EMMC_RST_L */
+	PAD_NC(GPP_I18, NONE),
+};
+
+void fw_config_gpio_padbased_override(struct pad_config *padbased_table)
+{
+	if (fw_config_is_provisioned() && !fw_config_probe(FW_CONFIG(STORAGE, STORAGE_EMMC))) {
+		printk(BIOS_INFO, "Disable eMMC GPIO pins.\n");
+		gpio_padbased_override(padbased_table, emmc_disable_pads,
+				       ARRAY_SIZE(emmc_disable_pads));
+	}
+}
diff --git a/src/mainboard/google/brya/variants/orisa/overridetree.cb b/src/mainboard/google/brya/variants/orisa/overridetree.cb
index 642722259f..600eb02422 100644
--- a/src/mainboard/google/brya/variants/orisa/overridetree.cb
+++ b/src/mainboard/google/brya/variants/orisa/overridetree.cb
@@ -3,6 +3,10 @@ fw_config
 		option THERMAL_SOLUTION_6W 0
 		option THERMAL_SOLUTION_15W 1
 	end
+	field STORAGE 30 31
+		option STORAGE_EMMC		0
+		option STORAGE_UFS		1
+	end
 end
 
 chip soc/intel/alderlake
diff --git a/src/mainboard/google/brya/variants/orisa/variant.c b/src/mainboard/google/brya/variants/orisa/variant.c
new file mode 100644
index 0000000000..f34fb2698b
--- /dev/null
+++ b/src/mainboard/google/brya/variants/orisa/variant.c
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <baseboard/variants.h>
+#include <device/device.h>
+#include <fw_config.h>
+
+void variant_devtree_update(void)
+{
+	struct device *emmc = DEV_PTR(emmc);
+	struct device *ufs = DEV_PTR(ufs);
+	struct device *ish = DEV_PTR(ish);
+
+	if (!fw_config_is_provisioned()) {
+		printk(BIOS_INFO, "fw_config unprovisioned so enable all storage devices\n");
+		return;
+	}
+
+	if (!fw_config_probe(FW_CONFIG(STORAGE, STORAGE_EMMC))) {
+		printk(BIOS_INFO, "eMMC disabled by fw_config\n");
+		emmc->enabled = 0;
+	}
+
+	if (!fw_config_probe(FW_CONFIG(STORAGE, STORAGE_UFS))) {
+		printk(BIOS_INFO, "UFS disabled by fw_config\n");
+		ufs->enabled = 0;
+		ish->enabled = 0;
+	}
+}