From 300dc6e199e78348be72e6da9c8e09110def6b79 Mon Sep 17 00:00:00 2001 From: Kamlesh Gurudasani Date: Thu, 2 Mar 2023 19:40:47 +0530 Subject: [PATCH] configs: am62: move stack and heap to HSM RAM On high security devices, ROM enables firewalls to protect the OCSRAM region access during bootup. Only after TIFS has started (and had time to disable the OCSRAM firewall region) will we have write access to the region. This means we will need to move the stack & heap from OCSRAM to HSM RAM and reduce the size of BSS and the SPL to allow it to fit properly. To protect us from overflowing our ~256k of HSM SRAM, add limits and check during the wakeup SPL build. Signed-off-by: Kamlesh Gurudasani --- configs/am62x_evm_r5_defconfig | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/configs/am62x_evm_r5_defconfig b/configs/am62x_evm_r5_defconfig index 4f9ecf2661..44a9130d99 100644 --- a/configs/am62x_evm_r5_defconfig +++ b/configs/am62x_evm_r5_defconfig @@ -8,7 +8,7 @@ CONFIG_NR_DRAM_BANKS=2 CONFIG_SOC_K3_AM625=y CONFIG_TARGET_AM625_R5_EVM=y CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y -CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x7000ffff +CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x43c3a7f0 CONFIG_ENV_SIZE=0x20000 CONFIG_DM_GPIO=y CONFIG_SPL_DM_SPI=y @@ -19,7 +19,9 @@ CONFIG_SPL_MMC=y CONFIG_SPL_SERIAL=y CONFIG_SPL_DRIVERS_MISC=y CONFIG_SPL_STACK_R_ADDR=0x82000000 -CONFIG_SPL_SIZE_LIMIT=0x40000 +CONFIG_SPL_SYS_MALLOC_F_LEN=0x7000 +CONFIG_SPL_SIZE_LIMIT=0x3A7F0 +CONFIG_SPL_SIZE_LIMIT_PROVIDE_STACK=0x3500 CONFIG_SPL_FS_FAT=y CONFIG_SPL_LIBDISK_SUPPORT=y CONFIG_SPL_SPI_FLASH_SUPPORT=y @@ -28,10 +30,14 @@ CONFIG_SPL_LOAD_FIT=y CONFIG_SPL_LOAD_FIT_ADDRESS=0x80080000 CONFIG_SPL_FIT_IMAGE_POST_PROCESS=y # CONFIG_DISPLAY_CPUINFO is not set -CONFIG_SPL_MAX_SIZE=0x58000 +CONFIG_SPL_SIZE_LIMIT_SUBTRACT_GD=y +CONFIG_SPL_SIZE_LIMIT_SUBTRACT_MALLOC=y +CONFIG_SPL_MAX_SIZE=0x3B000 +CONFIG_SPL_PAD_TO=0x0 CONFIG_SPL_HAS_BSS_LINKER_SECTION=y -CONFIG_SPL_BSS_START_ADDR=0x43c37800 -CONFIG_SPL_BSS_MAX_SIZE=0x5000 +CONFIG_SPL_BSS_START_ADDR=0x43c3b000 +CONFIG_SPL_BSS_MAX_SIZE=0x3000 +CONFIG_SPL_SYS_REPORT_STACK_F_USAGE=y CONFIG_SPL_SYS_MALLOC_SIMPLE=y CONFIG_SPL_STACK_R=y CONFIG_SPL_SEPARATE_BSS=y -- 2.39.5