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[61.220.246.151]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7c3f0b63dbcsm18216028b3a.50.2025.11.25.05.59.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 25 Nov 2025 05:59:40 -0800 (PST) From: Fred Chen To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Joel Stanley , Andrew Jeffery , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org Subject: [PATCH v1 1/2] ARM: dts: aspeed: santabarbara: Add swb IO expander and gpio line names Date: Tue, 25 Nov 2025 21:59:30 +0800 Message-ID: <20251125135934.3138781-2-fredchen.openbmc@gmail.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20251125135934.3138781-1-fredchen.openbmc@gmail.com> References: <20251125135934.3138781-1-fredchen.openbmc@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add IO expander emulated by the switch board CPLD to handle UART and SPI mux control signals. Also add SGPIO labels with FM_MODULE_PWR_EN_N_* signals, which control power to each ASIC module individually. Signed-off-by: Fred Chen --- .../aspeed-bmc-facebook-santabarbara.dts | 22 +++++++++++++++---- 1 file changed, 18 insertions(+), 4 deletions(-) diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-santabarbara.dts = b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-santabarbara.dts index f74f463cc878..4312ead311df 100644 --- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-santabarbara.dts +++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-santabarbara.dts @@ -1328,6 +1328,20 @@ eeprom@50 { &i2c12 { status =3D "okay"; =20 + gpio@27 { + compatible =3D "nxp,pca9555"; + reg =3D <0x27>; + gpio-controller; + #gpio-cells =3D <2>; + gpio-line-names =3D + "PEX0_MODE_SEL1_R","PEX0_MODE_SEL2_R", + "PEX0_MODE_SEL3_R","PEX0_MODE_SEL4_R", + "","","","", + "UART_MUX_SEL","RST_SMB_NIC_R_N", + "RST_SMB_N","RST_CP2102N_N", + "SPI_MUX_SEL","","",""; + }; + // SWB FRU eeprom@52 { compatible =3D "atmel,24c64"; @@ -1758,11 +1772,11 @@ &sgpiom0 { "","BIOS_DEBUG_MODE", /*H0-H3 line 112-119*/ "FM_IOEXP_U538_INT_N","", - "FM_IOEXP_U539_INT_N","", - "FM_IOEXP_U540_INT_N","", - "FM_IOEXP_U541_INT_N","", + "FM_IOEXP_U539_INT_N","FM_MODULE_PWR_EN_N_1B", + "FM_IOEXP_U540_INT_N","FM_MODULE_PWR_EN_N_2B", + "FM_IOEXP_U541_INT_N","FM_MODULE_PWR_EN_N_3B", /*H4-H7 line 120-127*/ - "FM_IOEXP_PDB2_U1003_INT_N","", + "FM_IOEXP_PDB2_U1003_INT_N","FM_MODULE_PWR_EN_N_4B", "","", "","", "FM_MAIN_PWREN_RMC_EN_ISO_R","", --=20 2.49.0