[PATCH 1/2] include: configs: am65x_evm: Optimize size of SPL BSS
Current BSS allocation of SPL is as below: $ size spl/u-boot-spl text data bss dec hex filename 132369 7852 1496 141717 22995 spl/u-boot-spl
But 20KB is allocated currently for BSS. Reduce it to 3KB and save some space for stack.
Signed-off-by: Lokesh Vutla lokeshvutla@ti.com --- include/configs/am65x_evm.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/configs/am65x_evm.h b/include/configs/am65x_evm.h index b39a5b4ca4..76d73086fb 100644 --- a/include/configs/am65x_evm.h +++ b/include/configs/am65x_evm.h @@ -30,7 +30,7 @@ * our memory footprint. The less we use for BSS the more we have available * for everything else. */ -#define CONFIG_SPL_BSS_MAX_SIZE 0x5000 +#define CONFIG_SPL_BSS_MAX_SIZE 0xc00 /* * Link BSS to be within SPL in a dedicated region located near the top of * the MCU SRAM, this way making it available also before relocation. Note
Enable relevant configs that checks for the size of image and stack:
BSS: 3KB Initial MALLOC: ~22KB Initial Stack: 8K SPL Image size can be: ~215KB
Signed-off-by: Lokesh Vutla lokeshvutla@ti.com --- configs/am65x_evm_r5_defconfig | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/configs/am65x_evm_r5_defconfig b/configs/am65x_evm_r5_defconfig index b9b11010a1..57f3300380 100644 --- a/configs/am65x_evm_r5_defconfig +++ b/configs/am65x_evm_r5_defconfig @@ -17,6 +17,8 @@ CONFIG_SPL_MMC_SUPPORT=y CONFIG_SPL_SERIAL_SUPPORT=y CONFIG_SPL_DRIVERS_MISC_SUPPORT=y CONFIG_SPL_STACK_R_ADDR=0x82000000 +CONFIG_SPL_SIZE_LIMIT=0x7ec00 +CONFIG_SPL_SIZE_LIMIT_PROVIDE_STACK=0x2000 CONFIG_SPL_FS_FAT=y CONFIG_SPL_LIBDISK_SUPPORT=y CONFIG_SPL_SPI_FLASH_SUPPORT=y @@ -27,6 +29,9 @@ CONFIG_SPL_LOAD_FIT=y # CONFIG_USE_SPL_FIT_GENERATOR is not set CONFIG_USE_BOOTCOMMAND=y # CONFIG_DISPLAY_CPUINFO is not set +CONFIG_SPL_SIZE_LIMIT_SUBTRACT_GD=y +CONFIG_SPL_SIZE_LIMIT_SUBTRACT_MALLOC=y +CONFIG_SPL_SYS_REPORT_STACK_F_USAGE=y CONFIG_SPL_STACK_R=y CONFIG_SPL_SEPARATE_BSS=y CONFIG_SPL_EARLY_BSS=y
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Lokesh Vutla