diff options
| author | Beleswar Padhi <[email protected]> | 2025-12-09 11:20:43 +0530 |
|---|---|---|
| committer | Tom Rini <[email protected]> | 2025-12-10 09:28:37 -0600 |
| commit | da54deb1ac8ee65475c7dca556df751b7e31806e (patch) | |
| tree | f24a536e0d6c37c703d926636736cdce5303c8d2 | |
| parent | 7da7ca7cf50f4996493b99198e939726e721906d (diff) | |
configs: am43xx: Migrate to CONFIG_SYS_MEM_TOP_HIDE from CFG_PRAM
The TI AM43xx HS boards have been using CFG_PRAM to hide the top 64MB
firewalled DRAM memory from U-Boot. However, CFG_PRAM only prevents
U-Boot from relocating into that memory, but it is still open for access
for any other usage.
Therefore, migrate into using CONFIG_SYS_MEM_TOP_HIDE which reduces the
ram size itself ensuring that memory is not visible to U-Boot at all
(either for reloc, or general usage).
Signed-off-by: Beleswar Padhi <[email protected]>
| -rw-r--r-- | configs/am43xx_hs_evm_defconfig | 1 | ||||
| -rw-r--r-- | configs/am43xx_hs_evm_qspi_defconfig | 1 | ||||
| -rw-r--r-- | include/configs/am43xx_evm.h | 5 |
3 files changed, 2 insertions, 5 deletions
diff --git a/configs/am43xx_hs_evm_defconfig b/configs/am43xx_hs_evm_defconfig index c95fc0886bf..8bb13848a6a 100644 --- a/configs/am43xx_hs_evm_defconfig +++ b/configs/am43xx_hs_evm_defconfig @@ -15,6 +15,7 @@ CONFIG_TI_SECURE_EMIF_PROTECTED_REGION_SIZE=0x01c00000 CONFIG_SPL_DRIVERS_MISC=y CONFIG_SPL_TEXT_BASE=0x403018e0 CONFIG_SPL=y +CONFIG_SYS_MEM_TOP_HIDE=0x4000000 CONFIG_SPL_LOAD_FIT=y CONFIG_DISTRO_DEFAULTS=y CONFIG_OF_BOARD_SETUP=y diff --git a/configs/am43xx_hs_evm_qspi_defconfig b/configs/am43xx_hs_evm_qspi_defconfig index cc444ac2817..9b4bc178ed0 100644 --- a/configs/am43xx_hs_evm_qspi_defconfig +++ b/configs/am43xx_hs_evm_qspi_defconfig @@ -14,6 +14,7 @@ CONFIG_TI_SECURE_EMIF_REGION_START=0xbdb00000 CONFIG_TI_SECURE_EMIF_TOTAL_REGION_SIZE=0x02000000 CONFIG_TI_SECURE_EMIF_PROTECTED_REGION_SIZE=0x01c00000 CONFIG_ENV_OFFSET_REDUND=0x120000 +CONFIG_SYS_MEM_TOP_HIDE=0x4000000 CONFIG_DISTRO_DEFAULTS=y CONFIG_QSPI_BOOT=y CONFIG_BOOTCOMMAND="run findfdt; run finduuid; run distro_bootcmd" diff --git a/include/configs/am43xx_evm.h b/include/configs/am43xx_evm.h index 036995cbb48..99d3ecb3fff 100644 --- a/include/configs/am43xx_evm.h +++ b/include/configs/am43xx_evm.h @@ -148,9 +148,4 @@ #define NANDBOOT #endif /* CONFIG_MTD_RAW_NAND */ -#if defined(CONFIG_TI_SECURE_DEVICE) -/* Avoid relocating onto firewalled area at end of DRAM */ -#define CFG_PRAM (64 * 1024) -#endif /* CONFIG_TI_SECURE_DEVICE */ - #endif /* __CONFIG_AM43XX_EVM_H */ |