[PATCH v2 0/4] Revise Meta Yosemite5 devicetree

[PATCH v2 0/4] Revise Meta Yosemite5 devicetree

[Kevin Tung]

Summary:
Revise linux device tree entry related to Meta (Facebook) Yosemite5.

Changes in v2:
- Add ipmb node for OCP debug card
- Link to v1: https://lore.kernel.org/r/20251118-yv5_revise_dts-v1-0-fcd6b44b4497@gmail.com

Changes in v1:
- Increase i2c4/i2c12 bus speed to 400 kHz
- Update sensor configuration
- Rename sgpio P0_I3C_APML_ALERT_L

Signed-off-by: Kevin Tung <kevin.tung.openbmc@gmail.com>
---
Kevin Tung (4):
      ARM: dts: aspeed: yosemite5: Increase i2c4/i2c12 bus speed to 400 kHz
      ARM: dts: aspeed: yosemite5: Update sensor configuration
      ARM: dts: aspeed: yosemite5: Rename sgpio P0_I3C_APML_ALERT_L
      ARM: dts: aspeed: yosemite5: Add ipmb node for OCP debug card

 .../dts/aspeed/aspeed-bmc-facebook-yosemite5.dts   | 25 +++++++++-------------
 1 file changed, 10 insertions(+), 15 deletions(-)
---
base-commit: 111e542d267576de402d0836603e1def2b60316b
change-id: 20251118-yv5_revise_dts-12e10edd95d6

Best regards,
-- 
Kevin Tung <kevin.tung.openbmc@gmail.com>

[PATCH v2 1/4] ARM: dts: aspeed: yosemite5: Increase i2c4/i2c12 bus speed to 400 kHz

[Kevin Tung]

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 <kevin.tung.openbmc@gmail.com>
---
 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/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts
index 2486981f3d6bd36f3fe780b21e834b85242f8aa9..7991e9360847532cff9aad4ad4ed57d4c30668a0 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 = <400000>;
 	status = "okay";
 
 	mctp@10 {
@@ -782,6 +783,7 @@ adc@4b {
 &i2c12 {
 	multi-master;
 	mctp-controller;
+	clock-frequency = <400000>;
 	status = "okay";
 
 	mctp@10 {

-- 
2.51.2

[PATCH v2 2/4] ARM: dts: aspeed: yosemite5: Update sensor configuration

[Kevin Tung]

Remove sensors 10-0040 and 10-0045 to align with the latest
hardware design changes.

Signed-off-by: Kevin Tung <kevin.tung.openbmc@gmail.com>
---
 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/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts
index 7991e9360847532cff9aad4ad4ed57d4c30668a0..45b8ac2e8c65a4f672e64571631b7f6944f26213 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";
 	};
 
-	power-sensor@40 {
-		compatible = "ti,ina233";
-		reg = <0x40>;
-		shunt-resistor = <2000>;
-		ti,maximum-expected-current-microamp = <32768000>;
-	};
-
-	power-sensor@45 {
-		compatible = "ti,ina233";
-		reg = <0x45>;
-		shunt-resistor = <2000>;
-		ti,maximum-expected-current-microamp = <32768000>;
-	};
-
 	adc@48 {
 		compatible = "ti,ads7830";
 		reg = <0x48>;

-- 
2.51.2

[PATCH v2 3/4] ARM: dts: aspeed: yosemite5: Rename sgpio P0_I3C_APML_ALERT_L

[Kevin Tung]

Rename P0_I3C_APML_ALERT_L to FM_APML_CPU_ALERT_N for clarity.

Signed-off-by: Kevin Tung <kevin.tung.openbmc@gmail.com>
---
 arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts
index 45b8ac2e8c65a4f672e64571631b7f6944f26213..060757b7211a6da777c51d9f0c886796cf2450a4 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts
@@ -964,7 +964,7 @@ &sgpiom0 {
 	"FAULT_P3V3_NIC_N","",
 	"FAULT_P12V_NIC_N","",
 	"FAULT_P12V_SCM_N","",
-	"P0_I3C_APML_ALERT_L","",
+	"FM_APML_CPU_ALERT_N","",
 	"ALERT_INLET_TEMP_N","",
 	"FM_CPU_PROCHOT_R_N","",
 	"FM_CPU_THERMTRIP_N","",

-- 
2.51.2

[PATCH v2 4/4] ARM: dts: aspeed: yosemite5: Add ipmb node for OCP debug card

[Kevin Tung]

Add the device tree node to enable the IPMB interface used by
the OCP debug card.

Signed-off-by: Kevin Tung <kevin.tung.openbmc@gmail.com>
---
 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/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts
index 060757b7211a6da777c51d9f0c886796cf2450a4..b4ae1628ad5a8f8b5283f88760877846862b3835 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 {
 
 /* SCM CPLD I2C */
 &i2c7 {
+	multi-master;
 	status = "okay";
+
+	ipmb@10 {
+		compatible = "ipmb-dev";
+		reg = <(0x10 | I2C_OWN_SLAVE_ADDRESS)>;
+		i2c-protocol;
+	};
 };
 
 &i2c8 {

-- 
2.51.2

Re: [PATCH v2 0/4] Revise Meta Yosemite5 devicetree

[Andrew Jeffery]

Hi Kevin,

On Thu, 2025-11-20 at 13:25 +0800, Kevin Tung wrote:
> Summary:
> Revise linux device tree entry related to Meta (Facebook) Yosemite5.
> 
> Changes in v2:
> - Add ipmb node for OCP debug card
> - Link to v1: https://lore.kernel.org/r/20251118-yv5_revise_dts-v1-0-fcd6b44b4497@gmail.com
> 
> Changes in v1:
> - Increase i2c4/i2c12 bus speed to 400 kHz
> - Update sensor configuration
> - Rename sgpio P0_I3C_APML_ALERT_L

Sorry, I replied with comments on v1 before I saw v2.

Can you please resolve the discussions on v1 and send a follow-up
series if necessary?

Andrew

Re: [PATCH v2 0/4] Revise Meta Yosemite5 devicetree

[Kevin Tung]

Hi Andrew,

Sorry for the late reply. I’ve addressed the points raised in your review
and sent a follow up v3 patch series. Thanks.

BR,
Kevin

On Mon, Nov 24, 2025 at 12:53 PM Andrew Jeffery
<andrew@codeconstruct.com.au> wrote:
>
> Hi Kevin,
>
> On Thu, 2025-11-20 at 13:25 +0800, Kevin Tung wrote:
> > Summary:
> > Revise linux device tree entry related to Meta (Facebook) Yosemite5.
> >
> > Changes in v2:
> > - Add ipmb node for OCP debug card
> > - Link to v1: https://lore.kernel.org/r/20251118-yv5_revise_dts-v1-0-fcd6b44b4497@gmail.com
> >
> > Changes in v1:
> > - Increase i2c4/i2c12 bus speed to 400 kHz
> > - Update sensor configuration
> > - Rename sgpio P0_I3C_APML_ALERT_L
>
> Sorry, I replied with comments on v1 before I saw v2.
>
> Can you please resolve the discussions on v1 and send a follow-up
> series if necessary?
>
> Andrew