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 135cb3c..d84a8db 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 55fa641..b1f9050 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 df3c165..2590ee6 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 f0d56b8..a5505f0 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