diff options
author | Tom Rini <trini@ti.com> | 2012-08-22 15:31:05 -0700 |
---|---|---|
committer | Tom Rini <trini@ti.com> | 2012-09-27 09:49:59 -0700 |
commit | 6507f133f3201ed5fb22e4a3d73c33b47497539d (patch) | |
tree | bd9cc293fbd27e5e0ce75b26fa58c8065d450f4a /common/spl/spl.c | |
parent | 47f7bcae8c0de8b2a8af7ca309744f041a6d1424 (diff) |
SPL: Create arch/arm/lib/spl.c for board_init_f and jump_to_image_linux
In SPL (CONFIG_SPL_FRAMEWORK) board_init_f must setup the stack pointer,
clear the BSS and call board_init_r. We mark this as weak as some
platforms may need to perform additional initalization at this point.
We provide a gd that we know will be in a usable location, once the BSS
has been cleared to help with this as well. Finally, we no longer call
relocate_code so remove that from the armv7 version.
Next, both board_init_f and jump_to_image_linux are going to be
inherently arch-specific, so move these versions to arch/arm/lib/spl.c
Signed-off-by: Tom Rini <trini@ti.com>
Diffstat (limited to 'common/spl/spl.c')
-rw-r--r-- | common/spl/spl.c | 41 |
1 files changed, 6 insertions, 35 deletions
diff --git a/common/spl/spl.c b/common/spl/spl.c index 1562f2a1622..3f41014023e 100644 --- a/common/spl/spl.c +++ b/common/spl/spl.c @@ -38,8 +38,7 @@ DECLARE_GLOBAL_DATA_PTR; u32 *boot_params_ptr = NULL; struct spl_image_info spl_image; -/* Define global data structure pointer to it*/ -static gd_t gdata __attribute__ ((section(".data"))); +/* Define board data structure */ static bd_t bdata __attribute__ ((section(".data"))); inline void hang(void) @@ -49,18 +48,6 @@ inline void hang(void) ; } -void board_init_f(ulong dummy) -{ - /* - * We call relocate_code() with relocation target same as the - * CONFIG_SYS_SPL_TEXT_BASE. This will result in relocation getting - * skipped. Instead, only .bss initialization will happen. That's - * all we need - */ - debug(">>board_init_f()\n"); - relocate_code(CONFIG_SPL_STACK, &gdata, CONFIG_SPL_TEXT_BASE); -} - /* * Default function to determine if u-boot or the OS should * be started. This implementation always returns 1. @@ -107,24 +94,6 @@ void spl_parse_image_header(const struct image_header *header) } } -/* - * This function jumps to an image with argument. Normally an FDT or ATAGS - * image. - * arg: Pointer to paramter image in RAM - */ -#ifdef CONFIG_SPL_OS_BOOT -static void __noreturn jump_to_image_linux(void *arg) -{ - debug("Entering kernel arg pointer: 0x%p\n", arg); - typedef void (*image_entry_arg_t)(int, int, void *) - __attribute__ ((noreturn)); - image_entry_arg_t image_entry = - (image_entry_arg_t) spl_image.entry_point; - cleanup_before_linux(); - image_entry(0, CONFIG_MACH_TYPE, arg); -} -#endif - static void __noreturn jump_to_image_no_args(void) { typedef void __noreturn (*image_entry_noargs_t)(u32 *); @@ -140,7 +109,7 @@ static void __noreturn jump_to_image_no_args(void) image_entry((u32 *)boot_params_ptr_addr); } -void board_init_r(gd_t *id, ulong dummy) +void board_init_r(gd_t *dummy1, ulong dummy2) { u32 boot_device; debug(">>spl:board_init_r()\n"); @@ -204,10 +173,12 @@ void board_init_r(gd_t *id, ulong dummy) } } -/* This requires UART clocks to be enabled */ +/* + * This requires UART clocks to be enabled. In order for this to work the + * caller must ensure that the gd pointer is valid. + */ void preloader_console_init(void) { - gd = &gdata; gd->bd = &bdata; gd->flags |= GD_FLG_RELOC; gd->baudrate = CONFIG_BAUDRATE; |