Re: [PATCH 1/2] xilinx: zynqmp: Setup BOARD_SIZE_LIMIT for mini configurations

Michal Simek <[email protected]> Tue, 4 Aug 2026 17:13:38 +0200
Newsgroups gmane.comp.boot-loaders.u-boot
Message-ID <[email protected]>

On 7/22/26 14:16, Michal Simek wrote:
> 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 <[email protected]>
> ---
> 
>   configs/xilinx_zynqmp_mini_defconfig      | 5 ++++-
>   configs/xilinx_zynqmp_mini_qspi_defconfig | 6 ++++--
>   2 files changed, 8 insertions(+), 3 deletions(-)
> 
> diff --git a/configs/xilinx_zynqmp_mini_defconfig b/configs/xilinx_zynqmp_mini_defconfig
> index 20e2ae0f0030..8b1d8cc0439d 100644
> --- a/configs/xilinx_zynqmp_mini_defconfig
> +++ b/configs/xilinx_zynqmp_mini_defconfig
> @@ -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
> diff --git a/configs/xilinx_zynqmp_mini_qspi_defconfig b/configs/xilinx_zynqmp_mini_qspi_defconfig
> index 03366a3b05a4..9457dd0a6723 100644
> --- a/configs/xilinx_zynqmp_mini_qspi_defconfig
> +++ b/configs/xilinx_zynqmp_mini_qspi_defconfig
> @@ -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
> ---
> base-commit: 5da0b87566c20b6f429f05cad027027f4b1edc3c
> branch: debian-sent3
> 

Applied.
M