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[2001:b400:e3ff:afb4:41b8:b31c:89b3:a14]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7ff7b423d86sm1597274b3a.26.2025.12.19.00.10.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 19 Dec 2025 00:10:02 -0800 (PST) From: Kevin Tung Date: Fri, 19 Dec 2025 16:09:54 +0800 Subject: [PATCH v3 1/5] ARM: dts: aspeed: yosemite5: Increase i2c4/i2c12 bus speed to 400 kHz Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251219-yv5_revise_dts-v3-1-ca1d5a382013@gmail.com> References: <20251219-yv5_revise_dts-v3-0-ca1d5a382013@gmail.com> In-Reply-To: <20251219-yv5_revise_dts-v3-0-ca1d5a382013@gmail.com> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Joel Stanley , Andrew Jeffery Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org, Amithash Prasasd , Kevin Tung , Ken Chen , Leo Yang , Kevin Tung X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1766131796; l=1020; i=kevin.tung.openbmc@gmail.com; s=20250924; h=from:subject:message-id; bh=hdlRtRi9TLU18op7sSDjRmIwRirYAAfHoP1MDNioDPo=; b=iAJWJED/ZWZRo52wpqJhzFlhUoPTycBrTupcQzGdg/tHGBb9ORmlnq+1D0gO/nkszCJikiMuv +qDp18nvbegAk/VpV07EyHZlegt87Eor/yxHAO066vJpbUXe7X48Vam X-Developer-Key: i=kevin.tung.openbmc@gmail.com; a=ed25519; pk=PjAss0agA0hiuLfIBlA9j/qBmJaPCDP+jmQIUB6SE7g= Configure i2c4 and i2c12 to operate at 400 kHz instead of 100 kHz. This update aligns the bus settings with the hardware capabilities and improves MCTP communication performance. Signed-off-by: Kevin Tung --- arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts b/a= rch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts index 2486981f3d6bd36f3fe780b21e834b85242f8aa9..7991e9360847532cff9aad4ad4e= d57d4c30668a0 100644 --- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts +++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts @@ -231,6 +231,7 @@ sbtsi@4c { &i2c4 { multi-master; mctp-controller; + clock-frequency =3D <400000>; status =3D "okay"; =20 mctp@10 { @@ -782,6 +783,7 @@ adc@4b { &i2c12 { multi-master; mctp-controller; + clock-frequency =3D <400000>; status =3D "okay"; =20 mctp@10 { --=20 2.52.0 From nobody Mon Feb 9 04:23:29 2026 Received: from mail-pf1-f177.google.com (mail-pf1-f177.google.com [209.85.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1F9822DC783 for ; 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[2001:b400:e3ff:afb4:41b8:b31c:89b3:a14]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7ff7b423d86sm1597274b3a.26.2025.12.19.00.10.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 19 Dec 2025 00:10:05 -0800 (PST) From: Kevin Tung Date: Fri, 19 Dec 2025 16:09:55 +0800 Subject: [PATCH v3 2/5] ARM: dts: aspeed: yosemite5: Remove ambiguous power monitor DTS nodes Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251219-yv5_revise_dts-v3-2-ca1d5a382013@gmail.com> References: <20251219-yv5_revise_dts-v3-0-ca1d5a382013@gmail.com> In-Reply-To: <20251219-yv5_revise_dts-v3-0-ca1d5a382013@gmail.com> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Joel Stanley , Andrew Jeffery Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org, Amithash Prasasd , Kevin Tung , Ken Chen , Leo Yang , Kevin Tung X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1766131796; l=1501; i=kevin.tung.openbmc@gmail.com; s=20250924; h=from:subject:message-id; bh=PuGP3tDDyva66stpyd0PfJUp+oeZiyMMNMGNoISiM78=; b=ty83E+CYPB7Z6jW6eduvzKPvIngjQn4TpP4Y6GcwiwBZ0tmTuJIQuwghpPnsofiRPA6UAL0hO BjCASEV0a3fAYR1htzZYqxa15v0nKqfsi4GSl0D+O9I7qe5YfHNYPRy X-Developer-Key: i=kevin.tung.openbmc@gmail.com; a=ed25519; pk=PjAss0agA0hiuLfIBlA9j/qBmJaPCDP+jmQIUB6SE7g= Two different power monitor devices, using different drivers, reuse I2C addresses 0x40 and 0x45 on bus 10 across Yosemite5 board variants. Defining these devices statically in the DTS can lead to incorrect driver binding on newer boards when the wrong device is instantiated. Therefore, remove 10-0040 and 10-0045 device nodes, and let the driver selection is instead handled in user space by the OpenBMC Entity Manager based on the actual board configuration. Signed-off-by: Kevin Tung --- arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts | 14 ----------= ---- 1 file changed, 14 deletions(-) diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts b/a= rch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts index 7991e9360847532cff9aad4ad4ed57d4c30668a0..45b8ac2e8c65a4f672e64571631= b7f6944f26213 100644 --- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts +++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts @@ -674,20 +674,6 @@ gpio-expander@22 { "PWRGD_P3V3_AUX","ALERT_TEMP"; }; =20 - power-sensor@40 { - compatible =3D "ti,ina233"; - reg =3D <0x40>; - shunt-resistor =3D <2000>; - ti,maximum-expected-current-microamp =3D <32768000>; - }; - - power-sensor@45 { - compatible =3D "ti,ina233"; - reg =3D <0x45>; - shunt-resistor =3D <2000>; - ti,maximum-expected-current-microamp =3D <32768000>; - }; - adc@48 { compatible =3D "ti,ads7830"; reg =3D <0x48>; --=20 2.52.0 From nobody Mon Feb 9 04:23:29 2026 Received: from mail-pf1-f174.google.com (mail-pf1-f174.google.com [209.85.210.174]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 308332E1730 for ; 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Also rename PADDLE_BD_IOEXP_INT to ALERT_IRQ_PMBUS_PWR2_N to match hardware naming. The original PADDLE_BD_IOEXP_INT is unused, so this change does not affect current system functionality. Signed-off-by: Kevin Tung --- .../dts/aspeed/aspeed-bmc-facebook-yosemite5.dts | 31 ++++++++++++++++++= ---- 1 file changed, 26 insertions(+), 5 deletions(-) diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts b/a= rch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts index 45b8ac2e8c65a4f672e64571631b7f6944f26213..983aebc394d9159c7e3db2e7c39= e963f7b64c855 100644 --- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts +++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts @@ -978,7 +978,7 @@ &sgpiom0 { "E1S_0_BD_IOEXP","", "E1S_1_BD_IOEXP","", /*bit88-bit95*/ - "PADDLE_BD_IOEXP_INT","", + "ALERT_IRQ_PMBUS_PWR2_N","", "FM_BOARD_REV_ID0","", "FM_BOARD_REV_ID1","", "FM_BOARD_REV_ID2","", @@ -991,16 +991,37 @@ &sgpiom0 { "PRSNT_BOOT_N_FF","", "PRSNT_MCIO1A_N_FF","", "NIC_PRSNT_N","", - "","", + "FM_CPU_BMC_RST_N","", "","", "","", "","", /*bit104-bit111*/ - "","","","","","","","","","","","","","","","", + "MASTER_PWR_EN","", + "MASTER_PWR2_EN","", + "PRSNT_MCIO0A_E1S0_N","", + "","", + "PRSNT_MCIO0A_E1S1_N","", + "","", + "","", + "Fault","", /*bit112-bit119*/ - "","","","","","","","","","","","","","","","", + "FM_CPLD_RSVD_MCIO0A_SB1","", + "FM_CPLD_RSVD_MCIO0A_SB2","", + "","", + "","", + "","", + "","", + "","", + "","", /*bit120-bit127*/ - "","","","","","","","","","","","","","","",""; 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Signed-off-by: Kevin Tung --- arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts b/a= rch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts index 983aebc394d9159c7e3db2e7c39e963f7b64c855..84d3731b17f7c7c87338672bbcc= 859de2b89b722 100644 --- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts +++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts @@ -365,7 +365,14 @@ i2c6mux0ch3: i2c@3 { =20 /* SCM CPLD I2C */ &i2c7 { + multi-master; status =3D "okay"; + + ipmb@10 { + compatible =3D "ipmb-dev"; + reg =3D <(0x10 | I2C_OWN_SLAVE_ADDRESS)>; + i2c-protocol; + }; }; =20 &i2c8 { --=20 2.52.0 From nobody Mon Feb 9 04:23:29 2026 Received: from mail-pf1-f180.google.com (mail-pf1-f180.google.com [209.85.210.180]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DED012E091C for ; 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[2001:b400:e3ff:afb4:41b8:b31c:89b3:a14]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7ff7b423d86sm1597274b3a.26.2025.12.19.00.10.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 19 Dec 2025 00:10:13 -0800 (PST) From: Kevin Tung Date: Fri, 19 Dec 2025 16:09:58 +0800 Subject: [PATCH v3 5/5] ARM: dts: aspeed: yosemite5: Correct power monitor shunt resistor Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251219-yv5_revise_dts-v3-5-ca1d5a382013@gmail.com> References: <20251219-yv5_revise_dts-v3-0-ca1d5a382013@gmail.com> In-Reply-To: <20251219-yv5_revise_dts-v3-0-ca1d5a382013@gmail.com> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Joel Stanley , Andrew Jeffery Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org, Amithash Prasasd , Kevin Tung , Ken Chen , Leo Yang , Kevin Tung X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1766131796; l=1969; i=kevin.tung.openbmc@gmail.com; s=20250924; h=from:subject:message-id; bh=d6+A4ye/JRSrS7pJrCdCy2IGur+aajOHCYd0dBHk7cc=; b=qSGjSNQeX1Dihy5AoAeuN0WLNCmP9mWMxheaWMyYmyLGs6Z5Fvgxy2/YCQj+mh1ZmYpDVu1e5 rnyjJgRsPAaClSr4Yh6wFnM2/xuqfEFAb4P/YClhlBd0Uv57GidsdCb X-Developer-Key: i=kevin.tung.openbmc@gmail.com; a=ed25519; pk=PjAss0agA0hiuLfIBlA9j/qBmJaPCDP+jmQIUB6SE7g= Correct the shunt resistor value in the DTS with the hardware setting to ensure accurate power and current measurements. Signed-off-by: Kevin Tung --- arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts | 14 +++++++---= ---- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts b/a= rch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts index 84d3731b17f7c7c87338672bbcc859de2b89b722..524597a81365ef10cd03b67d35e= eb88a965cbe0a 100644 --- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts +++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts @@ -415,7 +415,7 @@ power-sensor@42 { power-monitor@43 { compatible =3D "lltc,ltc4287"; reg =3D <0x43>; - shunt-resistor-micro-ohms =3D <250>; + shunt-resistor-micro-ohms =3D <100>; }; =20 power-sensor@44 { @@ -461,25 +461,25 @@ eeprom@57 { power-monitor@58 { compatible =3D "renesas,isl28022"; reg =3D <0x58>; - shunt-resistor-micro-ohms =3D <1000>; + shunt-resistor-micro-ohms =3D <10000>; }; =20 power-monitor@59 { compatible =3D "renesas,isl28022"; reg =3D <0x59>; - shunt-resistor-micro-ohms =3D <1000>; + shunt-resistor-micro-ohms =3D <10000>; }; =20 power-monitor@5a { compatible =3D "renesas,isl28022"; reg =3D <0x5a>; - shunt-resistor-micro-ohms =3D <1000>; + shunt-resistor-micro-ohms =3D <10000>; }; =20 power-monitor@5b { compatible =3D "renesas,isl28022"; reg =3D <0x5b>; - shunt-resistor-micro-ohms =3D <1000>; + shunt-resistor-micro-ohms =3D <10000>; }; =20 psu@5c { @@ -723,13 +723,13 @@ gpio-expander@21 { power-sensor@40 { compatible =3D "ti,ina230"; reg =3D <0x40>; - shunt-resistor =3D <2000>; + shunt-resistor =3D <1000>; }; =20 power-sensor@41 { compatible =3D "ti,ina230"; reg =3D <0x41>; - shunt-resistor =3D <2000>; + shunt-resistor =3D <1000>; }; =20 power-sensor@42 { --=20 2.52.0