> This adds support for a controlling fdt, mirroring the ARM implementation.
This is offtopic, but CONFIG OF CONTROL sounds interesting ;-)
btw. aren't you missing this part from ARM implementation?
/* Allow the early environment to override the fdt address */
gd->fdt_blob = (void *)getenv_ulong("fdtcontroladdr", 16, (uintptr_t)gd-
>fdt_blob);
>
> Signed-off-by: Simon Glass <s...@chromium.org>
> ---
> Changes in v3:
> - Use #if defined()..#elif defined, instead of #ifdef..#elif defined
>
> arch/sandbox/include/asm/global_data.h | 1 +
> arch/sandbox/lib/board.c | 8 ++++++++
> 2 files changed, 9 insertions(+), 0 deletions(-)
>
> diff --git a/arch/sandbox/include/asm/global_data.h
> b/arch/sandbox/include/asm/global_data.h index 8d47191..01a7063 100644
> --- a/arch/sandbox/include/asm/global_data.h
> +++ b/arch/sandbox/include/asm/global_data.h
> @@ -45,6 +45,7 @@ typedef struct global_data {
> unsigned long fb_base; /* base address of frame buffer */
> u8 *ram_buf; /* emulated RAM buffer */
> phys_size_t ram_size; /* RAM size */
> + const void *fdt_blob; /* Our device tree, NULL if none */
> void **jt; /* jump table */
> char env_buf[32]; /* buffer for getenv() before reloc. */
> } gd_t;
> diff --git a/arch/sandbox/lib/board.c b/arch/sandbox/lib/board.c
> index b7997e9..6d464d6 100644
> --- a/arch/sandbox/lib/board.c
> +++ b/arch/sandbox/lib/board.c
> @@ -156,6 +156,14 @@ void board_init_f(ulong bootflag)
>
> memset((void *)gd, 0, sizeof(gd_t));
>
> +#if defined(CONFIG_OF_EMBED)
> + /* Get a pointer to the FDT */
> + gd->fdt_blob = _binary_dt_dtb_start;
> +#elif defined(CONFIG_OF_SEPARATE)
> + /* FDT is at end of image */
> + gd->fdt_blob = (void *)(_end_ofs + _TEXT_BASE);
> +#endif
> +
> for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
> if ((*init_fnc_ptr)() != 0)
> hang();
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