This overwrites the name loaded from the SPL image. It will be different if there was previously no name provided, or if a more accurate name was determined by the board variant selection logic. This means that the DT name in the SPL header now always matches the DT appended to U-Boot.
Signed-off-by: Samuel Holland samuel@sholland.org --- board/sunxi/board.c | 27 ++++++++++++++++++++++++++- 1 file changed, 26 insertions(+), 1 deletion(-)
diff --git a/board/sunxi/board.c b/board/sunxi/board.c index 3d64ed18664..eaa40a1ea96 100644 --- a/board/sunxi/board.c +++ b/board/sunxi/board.c @@ -331,6 +331,21 @@ static const char *get_spl_dt_name(void) return NULL; }
+static void set_spl_dt_name(const char *name) +{ + struct boot_file_head *spl = get_spl_header(SPL_ENV_HEADER_VERSION); + + if (spl == INVALID_SPL_HEADER) + return; + + /* Promote the header version for U-Boot proper, if needed. */ + if (spl->spl_signature[3] < SPL_DT_HEADER_VERSION) + spl->spl_signature[3] = SPL_DT_HEADER_VERSION; + + strcpy((char *)&spl->string_pool, name); + spl->dt_name_offset = offsetof(struct boot_file_head, string_pool); +} + int dram_init(void) { struct boot_file_head *spl = get_spl_header(SPL_DRAM_HEADER_VERSION); @@ -904,6 +919,7 @@ int ft_board_setup(void *blob, struct bd_info *bd) int board_fit_config_name_match(const char *name) { const char *best_dt_name = get_spl_dt_name(); + int ret;
#ifdef CONFIG_DEFAULT_DEVICE_TREE if (best_dt_name == NULL) @@ -941,6 +957,15 @@ int board_fit_config_name_match(const char *name) } #endif
- return strcmp(name, best_dt_name); + ret = strcmp(name, best_dt_name); + + /* + * If one of the FIT configurations matches the most accurate DT name, + * update the SPL header to provide that DT name to U-Boot proper. + */ + if (ret == 0) + set_spl_dt_name(best_dt_name); + + return ret; } #endif