[PATCH 01/31] rockchip: rk3399-gru: Fix max SPL size on bob and kevin

[Kever Yang]

On 2024/4/1 04:28, Jonas Karlman wrote:
> Chromebook bob and kevin only use SPL and not TPL+SPL like other RK3399
> boards, this mean that SPL is loaded to and run from SRAM instead of
> DRAM. The SPL and U-Boot payload is loaded from SPI flash.
>
> The U-Boot payload is located at 0x40000 (256 KiB) offset in SPI flash
> and because the BROM only read first 2 KiB for each 4 KiB page, the size
> of SPL (idbloader.img) is limited to max 128 KiB.
>
> The chosen bss start address further limits the size of SPL to 120 KiB.
>
>    0xff8e0000 (SPL_BSS_START_ADDR) - 0xff8c2000 (SPL_TEXT_BASE) = 0x1e000
>
> Update SPL_MAX_SIZE to reflect the 120 KiB max size limitation.
>
> Signed-off-by: Jonas Karlman <jonas at kwiboo.se>
Reviewed-by: Kever Yang <kever.yang at rock-chips.com>

Thanks,
- Kever
> ---
>   configs/chromebook_bob_defconfig   | 2 +-
>   configs/chromebook_kevin_defconfig | 2 +-
>   2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/configs/chromebook_bob_defconfig b/configs/chromebook_bob_defconfig
> index d0321948697b..58e76f11472c 100644
> --- a/configs/chromebook_bob_defconfig
> +++ b/configs/chromebook_bob_defconfig
> @@ -30,7 +30,7 @@ CONFIG_BOARD_EARLY_INIT_R=y
>   CONFIG_BLOBLIST=y
>   CONFIG_BLOBLIST_ADDR=0x100000
>   CONFIG_BLOBLIST_SIZE=0x1000
> -CONFIG_SPL_MAX_SIZE=0x2e000
> +CONFIG_SPL_MAX_SIZE=0x1e000
>   CONFIG_SPL_PAD_TO=0x7f8000
>   CONFIG_SPL_HAS_BSS_LINKER_SECTION=y
>   CONFIG_SPL_BSS_START_ADDR=0xff8e0000
> diff --git a/configs/chromebook_kevin_defconfig b/configs/chromebook_kevin_defconfig
> index 120c11c04972..5adc276a746a 100644
> --- a/configs/chromebook_kevin_defconfig
> +++ b/configs/chromebook_kevin_defconfig
> @@ -31,7 +31,7 @@ CONFIG_BOARD_EARLY_INIT_R=y
>   CONFIG_BLOBLIST=y
>   CONFIG_BLOBLIST_ADDR=0x100000
>   CONFIG_BLOBLIST_SIZE=0x1000
> -CONFIG_SPL_MAX_SIZE=0x2e000
> +CONFIG_SPL_MAX_SIZE=0x1e000
>   CONFIG_SPL_PAD_TO=0x7f8000
>   CONFIG_SPL_HAS_BSS_LINKER_SECTION=y
>   CONFIG_SPL_BSS_START_ADDR=0xff8e0000