[PATCH v4 10/12] ARM: dts: aspeed: anacapa: Add LPDB fuse monitor GPIO expander
Colin Huang <[email protected]> Wed, 05 Aug 2026 21:02:38 +0800
| Newsgroups | org.kernel.feeds.b4-sent,org.infradead.lists.linux-arm-kernel,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-kernel,org.ozlabs.lists.linux-aspeed |
|---|---|
| Message-ID | <20260805-anacapa-devlop-phase-devicetree-v4-10-5d67e0efa6c5@gmail.com> |
From: Rex Fu <[email protected]> Add the PCA9554 GPIO expander for PDB fuse monitor signals. Signed-off-by: Rex Fu <[email protected]> --- .../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@72 { + i2c8mux0ch0: i2c@0 { + gpio@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@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@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@1 { + gpio@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@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@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