[PATCH v4 10/12] ARM: dts: aspeed: anacapa: Add LPDB fuse monitor GPIO expander
Colin Huang via B4 Relay
devnull+u8813345.gmail.com at kernel.org
Wed Aug 5 06:02:38 PDT 2026
From: Rex Fu <rex.fu.amd at gmail.com>
Add the PCA9554 GPIO expander for PDB fuse monitor signals.
Signed-off-by: Rex Fu <rex.fu.amd at gmail.com>
---
.../dts/aspeed/aspeed-bmc-facebook-anacapa-dvt.dts | 87 ++++++++++++++++++++++
1 file changed, 87 insertions(+)
diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-anacapa-dvt.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-anacapa-dvt.dts
index 0eb547ad0ec1..f09dd1abe77d 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-anacapa-dvt.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-anacapa-dvt.dts
@@ -8,6 +8,93 @@ / {
compatible = "facebook,anacapa-bmc-dvt", "aspeed,ast2600";
};
+// MB - PDB
+&i2c8 {
+ i2c-mux at 72 {
+ i2c8mux0ch0: i2c at 0 {
+ gpio at 22 {
+ gpio-line-names =
+ "RPDB_FAN_FULL_SPEED_R_N", "RPDB_I2C_TMP432_U8_ALERT_R_N",
+ "RPDB_I2C_TMP432_U29_ALERT_R_N", "RPDB_GLOBAL_WP",
+ "RPDB_FAN_CT_FAN_FAIL_R_N", "RPDB_VERID_A0",
+ "RPDB_VERID_A1", "RPDB_VERID_A2",
+ "RPDB_ALERT_P50V_HSC2_R_N", "RPDB_ALERT_P50V_HSC3_R_N",
+ "RPDB_ALERT_P50V_HSC4_R_N", "RPDB_ALERT_P50V_STBY_R_N",
+ "RPDB_P12V_MB_VRM_ALERT_R_N",
+ "RPDB_P12V_STBY_VRM_ALERT_R_N",
+ "RPDB_PGD_P3V3_STBY_PWRGD_R",
+ "RPDB_P12V_STBY_VRM_PWRGD_BUF_R";
+ };
+ gpio at 24 {
+ gpio-line-names =
+ "RPDB_EAM2_PRSNT_MOS_N_R", "RPDB_EAM3_PRSNT_MOS_N_R",
+ "RPDB_PWRGD_P50V_HSC4_SYS_R",
+ "RPDB_PWRGD_P50V_STBY_SYS_BUF_R",
+ "RPDB_P50V_FAN5_R2_PG", "RPDB_P50V_FAN6_R2_PG",
+ "RPDB_P50V_FAN7_R2_PG", "RPDB_P50V_FAN8_R2_PG",
+ "RPDB_SKU_ID0", "RPDB_FAN5_PRSNT_N_R",
+ "", "RPDB_FAN6_PRSNT_N_R",
+ "RPDB_FAN7_PRSNT_N_R", "RPDB_FAN8_PRSNT_N_R",
+ "", "";
+ };
+ gpio at 38 {
+ compatible = "nxp,pca9554";
+ reg = <0x38>;
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ interrupt-parent = <&sgpiom0>;
+ interrupts = <174 IRQ_TYPE_LEVEL_LOW>;
+
+ gpio-line-names =
+ "RPDB_P50V_FUSE2_TVS1", "RPDB_P50V_FUSE2_TVS2",
+ "RPDB_P50V_FUSE3_TVS1", "RPDB_P50V_FUSE3_TVS2",
+ "RPDB_P50V_FUSE4_TVS1", "",
+ "", "";
+ };
+ };
+ i2c8mux0ch1: i2c at 1 {
+ gpio at 22 {
+ gpio-line-names =
+ "LPDB_FAN_FULL_SPEED_R_N", "LPDB_I2C_TEMP75_U8_ALERT_R_N",
+ "LPDB_I2C_TMP432_U29_ALERT_R_N", "LPDB_GLOBAL_WP",
+ "LPDB_FAN_CT_FAN_FAIL_R_N", "LPDB_VERID_A0",
+ "LPDB_VERID_A1", "LPDB_VERID_A2",
+ "LPDB_ALERT_P50V_HSC0_R_N", "LPDB_ALERT_P50V_HSC1_R_N",
+ "LPDB_ALERT_P50V_HSC5_R_N", "LPDB_I2C_P12V_SW_VRM_ALERT_R_N",
+ "LPDB_EAM0_PRSNT_MOS_N_R", "LPDB_EAM1_PRSNT_MOS_N_R",
+ "LPDB_PWRGD_P50V_HSC5_SYS_R", "BARKLIP_PRSNT_N_R3";
+ };
+ gpio at 24 {
+ gpio-line-names =
+ "LPDB_P50V_FAN0_R2_PG", "LPDB_P50V_FAN1_R2_PG",
+ "LPDB_P50V_FAN2_R2_PG", "LPDB_P50V_FAN3_R2_PG",
+ "LPDB_P50V_FAN4_R2_PG", "LPDB_FAN0_PRSNT_N_R",
+ "LPDB_FAN1_PRSNT_N_R", "LPDB_FAN2_PRSNT_N_R",
+ "LPDB_FAN3_PRSNT_N_R", "LPDB_FAN4_PRSNT_N_R",
+ "LPDB_SKU_ID0", "",
+ "", "",
+ "", "LPDB_PG_P3V3_R";
+ };
+ gpio at 38 {
+ compatible = "nxp,pca9554";
+ reg = <0x38>;
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ interrupt-parent = <&sgpiom0>;
+ interrupts = <174 IRQ_TYPE_LEVEL_LOW>;
+
+ gpio-line-names =
+ "LPDB_P50V_FUSE0_TVS1", "LPDB_P50V_FUSE0_TVS2",
+ "LPDB_P50V_FUSE1_TVS1", "LPDB_P50V_FUSE1_TVS2",
+ "LPDB_P50V_FUSE5_TVS1", "",
+ "", "";
+ };
+ };
+ };
+};
+
&sgpiom0 {
ngpios = <128>;
bus-frequency = <2000000>;
--
2.34.1
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