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authorPeng Fan <[email protected]>2026-06-20 00:06:04 +0800
committerFabio Estevam <[email protected]>2026-06-26 23:02:46 -0300
commit77c8ba882638a1eb4a6e5ceed485823a08bc9396 (patch)
treeccb74c983cc198a5af65d5090000daf1c40a8156
parentc295bc7c15b0f58e8b550e74819f8840ddd8a970 (diff)
imx8mq_evk: enable booting Image.gz and avoid extra memcpy
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 to provide a dedicated decompression buffer, avoiding overlap between compressed input and decompressed output. Also adjust CONFIG_SYS_LOAD_ADDR from 0x40480000 to 0x40400000. 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]>
-rw-r--r--board/nxp/imx8mq_evk/imx8mq_evk.env2
-rw-r--r--configs/imx8mq_evk_defconfig2
2 files changed, 3 insertions, 1 deletions
diff --git a/board/nxp/imx8mq_evk/imx8mq_evk.env b/board/nxp/imx8mq_evk/imx8mq_evk.env
index 6575dd7cb07..dd674afac91 100644
--- a/board/nxp/imx8mq_evk/imx8mq_evk.env
+++ b/board/nxp/imx8mq_evk/imx8mq_evk.env
@@ -10,6 +10,8 @@ initrd_addr=0x43800000
image=Image
ip_dyn=yes
kernel_addr_r=CONFIG_SYS_LOAD_ADDR
+kernel_comp_addr_r=0x80000000
+kernel_comp_size=0x2000000
loadaddr=CONFIG_SYS_LOAD_ADDR
mmcautodetect=yes
mmcdev=CONFIG_ENV_MMC_DEVICE_INDEX
diff --git a/configs/imx8mq_evk_defconfig b/configs/imx8mq_evk_defconfig
index d041fbd8268..cc40e7b9bf3 100644
--- a/configs/imx8mq_evk_defconfig
+++ b/configs/imx8mq_evk_defconfig
@@ -19,7 +19,7 @@ CONFIG_SPL_TEXT_BASE=0x7E1000
CONFIG_SPL_HAS_BSS_LINKER_SECTION=y
CONFIG_SPL_BSS_START_ADDR=0x180000
CONFIG_SPL_BSS_MAX_SIZE=0x2000
-CONFIG_SYS_LOAD_ADDR=0x40480000
+CONFIG_SYS_LOAD_ADDR=0x40400000
CONFIG_SPL=y
CONFIG_ENV_OFFSET_REDUND=0x204000
CONFIG_IMX_BOOTAUX=y