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 <b-padhi@ti.com>

diff --git a/configs/am43xx_hs_evm_defconfig b/configs/am43xx_hs_evm_defconfig
index c95fc0886bf05ede276c4d4f42dcab76b658bdcf..8bb13848a6a3adbd270c8fc9cdce4cb911cd5a43 100644 (file)
--- 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 cc444ac2817bafea7c4c15b5e02d96b8d5fc4a97..9b4bc178ed0ede0f4de1f46ee7384c9ebded4310 100644 (file)
--- 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 036995cbb4824e3df4b8372d325d4ecb650a5272..99d3ecb3fff74d98e42f54d4fe70c178ef106cf9 100644 (file)
--- 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 */