diff options
| author | David Lechner <david@lechnology.com> | 2025-07-04 15:39:27 -0500 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2025-07-04 14:48:06 -0600 |
| commit | 15182ce25d5faa2d08bd08266a4d40fb5c2161fb (patch) | |
| tree | 9fe14dabe8a9a280319837b87b2734c30caf3051 | |
| parent | d1d53c252a4a746db5ebcdf0d6de3aa0feec504e (diff) | |
configs: legoev3: adjust to reduce binary size
Adjust legoev3_defconfig to reduce the binary output size.
As u-boot has bloated a bit over the years, the legoev3_defconfig can no
longer build something that fits in the 256kB size limit of the EV3.
This drops a few unused features, but the real difference-makers are
enabling thumb instructions and using link time optimization to reduce
the size.
This reduced u-boot.bin from 279,920 to 198,416 bytes on my local
machine with arm-none-eabi-gcc (15:13.2.rel1-2) 13.2.1 20231009.
HAS_BOARD_SIZE_LIMIT is also added to catch any future regressions.
Signed-off-by: David Lechner <david@lechnology.com>
| -rw-r--r-- | configs/legoev3_defconfig | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/configs/legoev3_defconfig b/configs/legoev3_defconfig index 60b7a84205c..54976501e11 100644 --- a/configs/legoev3_defconfig +++ b/configs/legoev3_defconfig @@ -1,5 +1,6 @@ CONFIG_ARM=y CONFIG_SKIP_LOWLEVEL_INIT=y +CONFIG_SYS_THUMB_BUILD=y CONFIG_ARCH_DAVINCI=y CONFIG_TEXT_BASE=0xc1080000 CONFIG_SYS_MALLOC_LEN=0x110000 @@ -12,6 +13,9 @@ CONFIG_SF_DEFAULT_SPEED=50000000 CONFIG_ENV_SIZE=0x4000 CONFIG_DEFAULT_DEVICE_TREE="da850-lego-ev3" CONFIG_SYS_LOAD_ADDR=0xc0700000 +CONFIG_LTO=y +CONFIG_HAS_BOARD_SIZE_LIMIT=y +CONFIG_BOARD_SIZE_LIMIT=262144 CONFIG_DYNAMIC_SYS_CLK_FREQ=y CONFIG_BOOTDELAY=0 CONFIG_AUTOBOOT_KEYED=y @@ -31,7 +35,6 @@ CONFIG_HUSH_PARSER=y # CONFIG_BOOTM_RTEMS is not set # CONFIG_BOOTM_VXWORKS is not set CONFIG_CMD_ASKENV=y -CONFIG_CRC32_VERIFY=y CONFIG_CMD_MX_CYCLIC=y CONFIG_CMD_MMC=y CONFIG_CMD_SPI=y @@ -56,4 +59,3 @@ CONFIG_SYS_NS16550=y CONFIG_SPI=y CONFIG_DM_SPI=y CONFIG_DAVINCI_SPI=y -CONFIG_REGEX=y |