Hi,
On 9/5/22 19:33, Jorge Ramirez-Ortiz wrote:
Enabling CONFIG_SYSRESET_PSCI prevents CONFIG_RESET_SCMI
from executing.
The side effect observed are I2C devices no longer being
accessible from U-boot after a soft reset.
Fixes: 11517ccc8c52 ("configs: add stm32mp13 defconfig")
Fixes: 17aeb589fa9d ("stm32mp15: remove configs dependency on
CONFIG_TFABOOT")
Signed-off-by: Jorge Ramirez-Ortiz <jo...@foundries.io>
---
configs/stm32mp13_defconfig | 1 -
configs/stm32mp15_defconfig | 1 -
configs/stm32mp15_trusted_defconfig | 1 -
3 files changed, 3 deletions(-)
The reset driver (used to managed Hardware device reset with RCC)
based on RCC register or on SCMI for 'system' / 'secured' ressource
and the sysret for global platform based on PSCI are indendent.
Deactivate CONFIG_SYSRESET_PSCI only prevent soft reset support
with the command reset or after crash.
I don't think it is the correct solution if the I2C devices is no longer
accessible
after SW reset.
i think that it is more a bug / problem for reinit of I2C in STM32 driver
so the configuration is not correct after a SW reset.
We have not detect this issue for I2C communication to PMIC after SW reset.
Can you provide more information for your use-case, for reproduction on
my side
- platform used (STM32MP13 or STM32MP15), board used
- I2C instance used and I2C device connected
- version of TF-A / OP-TEE used
Patrick
diff --git a/configs/stm32mp13_defconfig b/configs/stm32mp13_defconfig
index 673b468d31..44cee2e656 100644
--- a/configs/stm32mp13_defconfig
+++ b/configs/stm32mp13_defconfig
@@ -69,7 +69,6 @@ CONFIG_RNG_OPTEE=y
CONFIG_DM_RTC=y
CONFIG_RTC_STM32=y
CONFIG_SERIAL_RX_BUFFER=y
-CONFIG_SYSRESET_PSCI=y
CONFIG_TEE=y
CONFIG_OPTEE=y
# CONFIG_OPTEE_TA_AVB is not set
diff --git a/configs/stm32mp15_defconfig b/configs/stm32mp15_defconfig
index e5a2996c2c..2ad02f3652 100644
--- a/configs/stm32mp15_defconfig
+++ b/configs/stm32mp15_defconfig
@@ -133,7 +133,6 @@ CONFIG_SPI=y
CONFIG_DM_SPI=y
CONFIG_STM32_QSPI=y
CONFIG_STM32_SPI=y
-CONFIG_SYSRESET_PSCI=y
CONFIG_TEE=y
CONFIG_OPTEE=y
# CONFIG_OPTEE_TA_AVB is not set
diff --git a/configs/stm32mp15_trusted_defconfig
b/configs/stm32mp15_trusted_defconfig
index e14668042f..9e24e82920 100644
--- a/configs/stm32mp15_trusted_defconfig
+++ b/configs/stm32mp15_trusted_defconfig
@@ -134,7 +134,6 @@ CONFIG_SPI=y
CONFIG_DM_SPI=y
CONFIG_STM32_QSPI=y
CONFIG_STM32_SPI=y
-CONFIG_SYSRESET_PSCI=y
CONFIG_TEE=y
CONFIG_OPTEE=y
# CONFIG_OPTEE_TA_AVB is not set
