From: Peng Fan <[email protected]> Add support for booting compressed kernel Image.gz by defining kernel_comp_addr_r and kernel_comp_size in the default environment.
Set kernel_comp_addr_r to a high memory region (0x80000000) to provide a dedicated decompression buffer, avoiding overlap between compressed input and decompressed output. Also adjust CONFIG_SYS_LOAD_ADDR from 0x40480000 to 0x40600000. With TEXT_OFFSET=0, the kernel is relocated directly to loadaddr, so separating decompression and execution regions is required to guarantee safe decompression without additional copying. Signed-off-by: Peng Fan <[email protected]> --- board/nxp/imx8mp_evk/imx8mp_evk.env | 2 ++ configs/imx8mp_evk_defconfig | 2 +- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/board/nxp/imx8mp_evk/imx8mp_evk.env b/board/nxp/imx8mp_evk/imx8mp_evk.env index e994b93b168..dfc922e6215 100644 --- a/board/nxp/imx8mp_evk/imx8mp_evk.env +++ b/board/nxp/imx8mp_evk/imx8mp_evk.env @@ -10,6 +10,8 @@ fdt_addr=0x43000000 fdtfile=DEFAULT_FDT_FILE image=Image ip_dyn=yes +kernel_comp_addr_r=0x80000000 +kernel_comp_size=0x2000000 mmcdev=CONFIG_ENV_MMC_DEVICE_INDEX mmcpart=1 mmcroot=/dev/mmcblk1p2 rootwait rw diff --git a/configs/imx8mp_evk_defconfig b/configs/imx8mp_evk_defconfig index 7af538ee367..a74ce5a60d3 100644 --- a/configs/imx8mp_evk_defconfig +++ b/configs/imx8mp_evk_defconfig @@ -19,7 +19,7 @@ CONFIG_SPL_HAS_BSS_LINKER_SECTION=y CONFIG_SPL_BSS_START_ADDR=0x98fc00 CONFIG_SPL_BSS_MAX_SIZE=0x400 CONFIG_SYS_BOOTM_LEN=0x2000000 -CONFIG_SYS_LOAD_ADDR=0x40480000 +CONFIG_SYS_LOAD_ADDR=0x40600000 CONFIG_SPL=y CONFIG_ENV_OFFSET_REDUND=0x20400 CONFIG_SPL_IMX_ROMAPI_LOADADDR=0x48000000 -- 2.51.0
