[PATCH v5 08/10] ARM: dts: aspeed: catalina: Enable multi-master on additional I2C buses
Potin Lai
potin.lai.pt at gmail.com
Fri Mar 21 02:21:58 AEDT 2025
Update the device tree to enable `multi-master` mode on I2C buses shared
between the host BMC and the NV module with HMC. This ensures proper bus
arbitration and coordination in multi-master environments, preventing
communication conflicts and improving reliability.
Signed-off-by: Potin Lai <potin.lai.pt at gmail.com>
---
arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-catalina.dts | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-catalina.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-catalina.dts
index 1e1bcc9ac2f0..abf15d322605 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-catalina.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-catalina.dts
@@ -815,6 +815,7 @@ ssif-bmc at 10 {
&i2c12 {
status = "okay";
+ multi-master;
// Module 1 FRU EEPROM
eeprom at 50 {
@@ -825,6 +826,7 @@ eeprom at 50 {
&i2c13 {
status = "okay";
+ multi-master;
// Module 0 FRU EEPROM
eeprom at 50 {
--
2.31.1
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