vhaudiquet/u-boot-krane
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

xilinx: zynqmp: Setup BOARD_SIZE_LIMIT for mini configurations

Browse Source 
Setup BOARD_SIZE_LIMIT to 128KB (131072 bytes) for ZynqMP mini/qspi
configurations and enable CONFIG_SKIP_RELOCATE as there is no need
for relocation.

For configurations running from OCM (xilinx_zynqmp_mini_defconfig and
xilinx_zynqmp_mini_qspi_defconfig), move TEXT_BASE from 0xFFFC0000 to
0xFFFE0000. The initial 128KB of OCM (0xFFFC0000-0xFFFDFFFF) is used
for data buffer.

Memory layout in OCM (256KB total):
- 0xFFFC0000 - 0xFFFDFFFF: Data buffer (128KB)
- 0xFFFE0000 - 0xFFFFFFFF: U-Boot code + stack (128KB)
  - TEXT_BASE at 0xFFFE0000 (code grows up)
  - EARLY SP at 0xFFFE0000 (stack grows down)

EARLY SP is released when new stack location is calculated before U-Boot
prompt that's why no conflict with Data buffer location.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://patch.msgid.link/6d91337d971fa9e22f6f57371f8bc656ea6bb4a3.1784722595.git.michal.simek@amd.com
This commit is contained in:
Michal Simek
2026-08-12 06:55:14 +02:00
parent 74467fdf1d
commit 4710d760b9
2 changed files with 8 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
configs/xilinx_zynqmp_mini_defconfig
+4 -1
View File
@@ -2,7 +2,7 @@ CONFIG_ARM=y
CONFIG_SYS_CONFIG_NAME="xilinx_zynqmp_mini"
CONFIG_SYS_ICACHE_OFF=y
CONFIG_ARCH_ZYNQMP=y
CONFIG_TEXT_BASE=0xFFFC0000
CONFIG_TEXT_BASE=0xFFFE0000
CONFIG_SYS_MALLOC_LEN=0x1a00
CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0xfffe0000
@@ -14,7 +14,10 @@ CONFIG_SYS_MEM_RSVD_FOR_MMU=y
# CONFIG_PSCI_RESET is not set
CONFIG_SYS_MEMTEST_START=0x00000000
CONFIG_SYS_MEMTEST_END=0x00001000
CONFIG_SKIP_RELOCATE=y
CONFIG_REMAKE_ELF=y
CONFIG_HAS_BOARD_SIZE_LIMIT=y
CONFIG_BOARD_SIZE_LIMIT=131072
# CONFIG_LEGACY_IMAGE_FORMAT is not set
# CONFIG_AUTOBOOT is not set
CONFIG_SYS_CBSIZE=1024
configs/xilinx_zynqmp_mini_qspi_defconfig
+4 -2
View File
@@ -2,7 +2,7 @@ CONFIG_ARM=y
CONFIG_SYS_CONFIG_NAME="xilinx_zynqmp_mini"
CONFIG_SYS_ICACHE_OFF=y
CONFIG_ARCH_ZYNQMP=y
CONFIG_TEXT_BASE=0xFFFC0000
CONFIG_TEXT_BASE=0xFFFE0000
CONFIG_SYS_MALLOC_LEN=0x1b00
CONFIG_NR_DRAM_BANKS=1
CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
@@ -19,8 +19,10 @@ CONFIG_XILINX_MINI=y
CONFIG_SYS_MEM_RSVD_FOR_MMU=y
CONFIG_ZYNQMP_NO_DDR=y
# CONFIG_PSCI_RESET is not set
# CONFIG_EXPERT is not set
CONFIG_SKIP_RELOCATE=y
CONFIG_REMAKE_ELF=y
CONFIG_HAS_BOARD_SIZE_LIMIT=y
CONFIG_BOARD_SIZE_LIMIT=131072
# CONFIG_LEGACY_IMAGE_FORMAT is not set
# CONFIG_AUTOBOOT is not set
# CONFIG_ARCH_FIXUP_FDT_MEMORY is not set