diff options
| author | Aswath Govindraju | 2021-06-04 22:00:38 +0530 |
|---|---|---|
| committer | Lokesh Vutla | 2021-06-09 22:23:44 +0530 |
| commit | 26f32c32b2506172130255ee2a136d66bc28905c (patch) | |
| tree | b24fcd19d4d83cc764d992e92263d2db20d88071 /include/configs/am64x_evm.h | |
| parent | 1c8b404b88a5389f9e25b644a42ccaaff433c919 (diff) | |
configs: am64x_evm_*_defconfig: Rearrange the components in SRAM to satisfy the limitations for USB DFU boot mode
For USB DFU boot mode there is a limitation on the load address of boot
images that they have to be less than 0x70001000. Therefore, move the
SPL_TEXT_BASE address to 0x70000000.
Currently ATF is being loaded at 0x70000000, if the SPL is being loaded at
0x70000000 then ATF would overwrite SPL image when loaded. Therefore, move
the location of ATF to a latter location in SRAM, past the SPL image. Also
rearrange the EEPROM and BSS data on top of ATF.
Given below is the placement of various data sections in SRAM
┌──────────────────────────────────────┐0x70000000
│ │
│ │
│ │
│ SPL IMAGE (Max size 1.5 MB) │
│ │
│ │
│ │
├──────────────────────────────────────┤0x7017FFFF
│ │
│ SPL STACK │
│ │
├──────────────────────────────────────┤0x70192727
│ GLOBAL DATA(216 B) │
├──────────────────────────────────────┤0x701927FF
│ │
│ INITIAL HEAP (32 KB) │
│ │
├──────────────────────────────────────┤0x7019A7FF
│ │
│ BSS (20 KB) │
├──────────────────────────────────────┤0x7019F7FF
│ EEPROM DATA (2 KB) │
├──────────────────────────────────────┤0x7019FFFF
│ │
│ │
│ ATF (123 KB) │
│ │
│ │
├──────────────────────────────────────┤0x701BEBFB
│ BOOT PARAMETER INDEX TABLE (5124 B)│
├──────────────────────────────────────┤0x701BFFFF
│ │
│SYSFW FIREWALLED DUE TO A BUG (128 KB)│
│ │
├──────────────────────────────────────┤0x701DFFFF
│ │
│ DMSC CODE AREA (128 KB) │
│ │
└──────────────────────────────────────┘0x701FFFFF
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210604163043.12811-9-a-govindraju@ti.com
Diffstat (limited to 'include/configs/am64x_evm.h')
| -rw-r--r-- | include/configs/am64x_evm.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/configs/am64x_evm.h b/include/configs/am64x_evm.h index 7c30e50c5f1..7c9bdc2d7d3 100644 --- a/include/configs/am64x_evm.h +++ b/include/configs/am64x_evm.h @@ -12,6 +12,7 @@ #include <linux/sizes.h> #include <config_distro_bootcmd.h> #include <environment/ti/mmc.h> +#include <asm/arch/am64_hardware.h> /* DDR Configuration */ #define CONFIG_SYS_SDRAM_BASE1 0x880000000 @@ -43,7 +44,7 @@ * location filled in by the boot ROM that we want to read out without any * interference from the C context. */ -#define CONFIG_SPL_BSS_START_ADDR (CONFIG_SYS_K3_BOOT_PARAM_TABLE_INDEX -\ +#define CONFIG_SPL_BSS_START_ADDR (TI_SRAM_SCRATCH_BOARD_EEPROM_START -\ CONFIG_SPL_BSS_MAX_SIZE) /* Set the stack right below the SPL BSS section */ #define CONFIG_SYS_INIT_SP_ADDR CONFIG_SPL_BSS_START_ADDR |