[PATCH 4/8] sunxi: board: Add PinePhone DT selection logic

[Jagan Teki]

On Thu, Sep 3, 2020 at 10:37 AM Samuel Holland <samuel at sholland.org> wrote:
>
> There are two different publicly-released revisions of the PinePhone
> hardware, versions 1.1 and 1.2; and they need different device trees.
> Since some GPIO pins were rerouted, we can use that to distinguish
> between them.
>
> Signed-off-by: Samuel Holland <samuel at sholland.org>
> ---
>  arch/arm/mach-sunxi/Kconfig |  7 +++++++
>  board/sunxi/board.c         | 21 +++++++++++++++++++++
>  2 files changed, 28 insertions(+)
>
> diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig
> index be0822bfb7d..8421f3b6854 100644
> --- a/arch/arm/mach-sunxi/Kconfig
> +++ b/arch/arm/mach-sunxi/Kconfig
> @@ -1010,4 +1010,11 @@ config PINE64_DT_SELECTION
>           option, the device tree selection code specific to Pine64 which
>           utilizes the DRAM size will be enabled.
>
> +config PINEPHONE_DT_SELECTION
> +       bool "Enable PinePhone device tree selection code"
> +       depends on MACH_SUN50I
> +       help
> +         Enable this option to automatically select the device tree for the
> +         correct PinePhone hardware revision during boot.
> +
>  endif
> diff --git a/board/sunxi/board.c b/board/sunxi/board.c
> index fb0d5bf4743..3d64ed18664 100644
> --- a/board/sunxi/board.c
> +++ b/board/sunxi/board.c
> @@ -27,6 +27,7 @@
>  #include <asm/arch/dram.h>
>  #include <asm/arch/gpio.h>
>  #include <asm/arch/mmc.h>
> +#include <asm/arch/prcm.h>
>  #include <asm/arch/spl.h>
>  #include <linux/delay.h>
>  #include <u-boot/crc.h>
> @@ -920,6 +921,26 @@ int board_fit_config_name_match(const char *name)
>                         best_dt_name = "sun50i-a64-pine64";
>         }
>  #endif
> +#ifdef CONFIG_PINEPHONE_DT_SELECTION

Look like these board detection CONFIG items are keep on increasing.
Better to have something like CONFIG_SUNXI_DT_SELECTION for all dt
selection code.