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configs: am62: move stack and heap to HSM RAM

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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 <kamlesh@ti.com>
This commit is contained in:
Kamlesh Gurudasani 2023-03-02 19:40:47 +05:30 committed by Tom Rini
parent d3882531c3
commit e8dd304474
1 changed files with 11 additions and 5 deletions
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16
configs/am62x_evm_r5_defconfig
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@ -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