include: configs: am**x/j721e/j721s2_evm.h: Move the stack pointer init address in...

Currently, in case of arm64 bootloader and U-Boot the stack pointer is
initialized at an offset of NON_SECURE_MSRAM_SIZE from arm64 SPL's text
base address. After jumping to arm64, execution is done out of DDR.
Therefore, having an offset corresponding to the size of MSRAM does not
have any significance.

Instead, initialize the stack pointer after an offset of 4MB from the SPL
text base address. This helps in allocating larger memory for stack.

  ┌────────────────────┐0x80080000
  │                    │
  │   arm64 SPL        │
  ├────────────────────┤
  │        ▲           │
  │        │           │
  │      STACK         │
  ├────────────────────┤0x80480000
  │ Memory for Load    │
  │ Buffer Allocation  │
  ├────────────────────┤0x80800000
  │                    │
  │    U-Boot Image    │
  │                    │
  └────────────────────┘

Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>

diff --git a/include/configs/am64x_evm.h b/include/configs/am64x_evm.h
index 135cb3c2ee200cb9c1155d69803921483b527cd4..d84a8db97edeafe5808c1c31a19bc11c7403fcae 100644 (file)
--- a/include/configs/am64x_evm.h
+++ b/include/configs/am64x_evm.h
@@ -24,8 +24,7 @@
 
 #define CONFIG_SPL_MAX_SIZE            CONFIG_SYS_K3_MAX_DOWNLODABLE_IMAGE_SIZE
 #if defined(CONFIG_TARGET_AM642_A53_EVM)
-#define CONFIG_SYS_INIT_SP_ADDR         (CONFIG_SPL_TEXT_BASE +        \
-                                       CONFIG_SYS_K3_NON_SECURE_MSRAM_SIZE - 4)
+#define CONFIG_SYS_INIT_SP_ADDR         (CONFIG_SPL_TEXT_BASE + SZ_4M)
 #else
 /*
  * Maximum size in memory allocated to the SPL BSS. Keep it as tight as

diff --git a/include/configs/am65x_evm.h b/include/configs/am65x_evm.h
index 55fa6419e33d4e9f1a12763bf1edcddc5fdfd48a..b1f9050f3f5baf9148299a10ca2a63272dad3061 100644 (file)
--- a/include/configs/am65x_evm.h
+++ b/include/configs/am65x_evm.h
@@ -19,8 +19,7 @@
 
 /* SPL Loader Configuration */
 #ifdef CONFIG_TARGET_AM654_A53_EVM
-#define CONFIG_SYS_INIT_SP_ADDR         (CONFIG_SPL_TEXT_BASE +        \
-                                        CONFIG_SYS_K3_NON_SECURE_MSRAM_SIZE)
+#define CONFIG_SYS_INIT_SP_ADDR         (CONFIG_SPL_TEXT_BASE + SZ_4M)
 #else
 /*
  * Maximum size in memory allocated to the SPL BSS. Keep it as tight as

diff --git a/include/configs/j721e_evm.h b/include/configs/j721e_evm.h
index df3c16540ba3463e46cb4fed29ef1b617ed61846..2590ee6b01401c28d74eb9ee6e21dde3083c44b5 100644 (file)
--- a/include/configs/j721e_evm.h
+++ b/include/configs/j721e_evm.h
@@ -20,8 +20,7 @@
 
 /* SPL Loader Configuration */
 #if defined(CONFIG_TARGET_J721E_A72_EVM) || defined(CONFIG_TARGET_J7200_A72_EVM)
-#define CONFIG_SYS_INIT_SP_ADDR         (CONFIG_SPL_TEXT_BASE +        \
-                                        CONFIG_SYS_K3_NON_SECURE_MSRAM_SIZE)
+#define CONFIG_SYS_INIT_SP_ADDR         (CONFIG_SPL_TEXT_BASE + SZ_4M)
 #define CONFIG_SYS_UBOOT_BASE          0x50280000
 /* Image load address in RAM for DFU boot*/
 #else

diff --git a/include/configs/j721s2_evm.h b/include/configs/j721s2_evm.h
index f0d56b8778eee02480f9017834f8398ccf8399a0..a5505f079b43a3f34330d05e717ad0d528a13b0d 100644 (file)
--- a/include/configs/j721s2_evm.h
+++ b/include/configs/j721s2_evm.h
@@ -21,8 +21,7 @@
 
 /* SPL Loader Configuration */
 #if defined(CONFIG_TARGET_J721S2_A72_EVM) || defined(CONFIG_TARGET_J7200_A72_EVM)
-#define CONFIG_SYS_INIT_SP_ADDR         (CONFIG_SPL_TEXT_BASE +        \
-                                        CONFIG_SYS_K3_NON_SECURE_MSRAM_SIZE)
+#define CONFIG_SYS_INIT_SP_ADDR         (CONFIG_SPL_TEXT_BASE + SZ_4M)
 #define CONFIG_SYS_UBOOT_BASE          0x50280000
 /* Image load address in RAM for DFU boot*/
 #else