diff --git a/meta-arm-bsp/recipes-bsp/trusted-firmware-a/files/corstone1000/0005-fix-corstone1000-clean-the-cache-and-disable-interru.patch b/meta-arm-bsp/recipes-bsp/trusted-firmware-a/files/corstone1000/0005-fix-corstone1000-clean-the-cache-and-disable-interru.patch new file mode 100644 index 00000000..a45b6577 --- /dev/null +++ b/meta-arm-bsp/recipes-bsp/trusted-firmware-a/files/corstone1000/0005-fix-corstone1000-clean-the-cache-and-disable-interru.patch @@ -0,0 +1,46 @@ +From 37f92eeb4361626072e690adb3b0bb20db7c2fca Mon Sep 17 00:00:00 2001 +From: Emekcan Aras +Date: Wed, 15 May 2024 13:54:51 +0100 +Subject: [PATCH] fix(corstone1000): clean the cache and disable interrupt + before system reset + +Corstone1000 does not properly clean the cache and disable gic interrupts +before the reset. This causes a race condition especially in FVP after reset. +This adds proper sequence before resetting the platform. + +Signed-off-by: Emekcan Aras +Upstream-Status: Pending +--- + plat/arm/board/corstone1000/common/corstone1000_pm.c | 9 +++++++++ + 1 file changed, 9 insertions(+) + +diff --git a/plat/arm/board/corstone1000/common/corstone1000_pm.c b/plat/arm/board/corstone1000/common/corstone1000_pm.c +index 4b0a791e7..a52e945bf 100644 +--- a/plat/arm/board/corstone1000/common/corstone1000_pm.c ++++ b/plat/arm/board/corstone1000/common/corstone1000_pm.c +@@ -7,6 +7,7 @@ + #include + #include + #include ++#include + /******************************************************************************* + * Export the platform handlers via plat_arm_psci_pm_ops. The ARM Standard + * platform layer will take care of registering the handlers with PSCI. +@@ -18,6 +19,14 @@ static void __dead2 corstone1000_system_reset(void) + uint32_t volatile * const watchdog_ctrl_reg = (uint32_t *) SECURE_WATCHDOG_ADDR_CTRL_REG; + uint32_t volatile * const watchdog_val_reg = (uint32_t *) SECURE_WATCHDOG_ADDR_VAL_REG; + ++ /* Flush and invalidate data cache */ ++ dcsw_op_all(DCCISW); ++ /* ++ * Disable GIC CPU interface to prevent pending interrupt ++ * from waking up the AP from WFI. ++ */ ++ gicv2_cpuif_disable(); ++ + *(watchdog_val_reg) = SECURE_WATCHDOG_COUNTDOWN_VAL; + *watchdog_ctrl_reg = SECURE_WATCHDOG_MASK_ENABLE; + while (1) { +-- +2.25.1 + diff --git a/meta-arm-bsp/recipes-bsp/trusted-firmware-a/trusted-firmware-a-corstone1000.inc b/meta-arm-bsp/recipes-bsp/trusted-firmware-a/trusted-firmware-a-corstone1000.inc index a61c74b4..f5737ca4 100644 --- a/meta-arm-bsp/recipes-bsp/trusted-firmware-a/trusted-firmware-a-corstone1000.inc +++ b/meta-arm-bsp/recipes-bsp/trusted-firmware-a/trusted-firmware-a-corstone1000.inc @@ -8,6 +8,7 @@ SRC_URI:append = " \ file://0002-fix-corstone1000-pass-spsr-value-explicitly.patch \ file://0003-fix-spmd-remove-EL3-interrupt-registration.patch \ file://0004-fix-corstone1000-remove-unused-NS_SHARED_RAM-region.patch \ + file://0005-fix-corstone1000-clean-the-cache-and-disable-interru.patch \ " TFA_DEBUG = "1"