From 070d00b8dc8453b8c2f12d74551919cf2b124136 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Tue, 23 Jun 2015 15:39:10 -0600 Subject: dm: spl: Allow device tree/driver model in board_init_f() Add an spl_init() function that does basic init such that board_init_f() can use simple malloc(), device tree and driver model. Each one is set up only if enabled for SPL. Note: We really should refactor SPL such that there is a single board_init_f() and rename the existing weak board_init_f() functions provided by boards, calling them from the single board_init_f(). Signed-off-by: Simon Glass --- include/asm-generic/global_data.h | 1 + include/spl.h | 12 ++++++++++++ 2 files changed, 13 insertions(+) (limited to 'include') diff --git a/include/asm-generic/global_data.h b/include/asm-generic/global_data.h index db0550b..7ef3e25 100644 --- a/include/asm-generic/global_data.h +++ b/include/asm-generic/global_data.h @@ -116,5 +116,6 @@ typedef struct global_data { #define GD_FLG_ENV_READY 0x00080 /* Env. imported into hash table */ #define GD_FLG_SERIAL_READY 0x00100 /* Pre-reloc serial console ready */ #define GD_FLG_FULL_MALLOC_INIT 0x00200 /* Full malloc() is ready */ +#define GD_FLG_SPL_INIT 0x00400 /* spl_init() has been called */ #endif /* __ASM_GENERIC_GBL_DATA_H */ diff --git a/include/spl.h b/include/spl.h index d19940f..8e53426 100644 --- a/include/spl.h +++ b/include/spl.h @@ -81,6 +81,18 @@ void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image); int spl_load_image_ext(block_dev_desc_t *block_dev, int partition, const char *filename); int spl_load_image_ext_os(block_dev_desc_t *block_dev, int partition); +/** + * spl_init() - Set up device tree and driver model in SPL if enabled + * + * Call this function in board_init_f() if you want to use device tree and + * driver model early, before board_init_r() is called. This function will + * be called from board_init_r() if not called earlier. + * + * If this is not called, then driver model will be inactive in SPL's + * board_init_f(), and no device tree will be available. + */ +int spl_init(void); + #ifdef CONFIG_SPL_BOARD_INIT void spl_board_init(void); #endif -- cgit v1.1