[PATCH] sunxi: defconfig: Add pstore support for pinephone

[Peter Robinson]

On Sun, 11 Feb 2024 at 16:02, Andrey Skvortsov
<andrej.skvortzov at gmail.com> wrote:
>
> In general any DRAM address, that isn't overwritten during a boot is
> suitable for pstore.

What's this functionality providing? The details below give the
technical reasons for the memory address but I'm not sure what
enabling pstore provides to PinePhone users.

> Range from 0x40000000 - 0x50000000 is heavily used by u-boot for
> internal use and to load kernel, fdt, fdto, scripts, pxefile and ramdisk
> later in the boot process. Ramdisk start address is 0x4FF00000,
> initramfs for kernel with some hacking features and debug info enabled
> can take more than 100Mb and final address will be around 0x58000000.
> Address 0x61000000 will most likely not overlap with that.
>
> Signed-off-by: Andrey Skvortsov <andrej.skvortzov at gmail.com>
> ---
>  configs/pinephone_defconfig | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/configs/pinephone_defconfig b/configs/pinephone_defconfig
> index 9d39204a43..7b80cc3131 100644
> --- a/configs/pinephone_defconfig
> +++ b/configs/pinephone_defconfig
> @@ -10,6 +10,8 @@ CONFIG_DRAM_ZQ=3881949
>  CONFIG_MMC_SUNXI_SLOT_EXTRA=2
>  CONFIG_PINEPHONE_DT_SELECTION=y
>  # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
> +CONFIG_CMD_PSTORE=y
> +CONFIG_CMD_PSTORE_MEM_ADDR=0x61000000
>  CONFIG_OF_LIST="sun50i-a64-pinephone-1.1 sun50i-a64-pinephone-1.2"
>  CONFIG_LED_STATUS=y
>  CONFIG_LED_STATUS_GPIO=y
> --
> 2.43.0
>