From 6507f133f3201ed5fb22e4a3d73c33b47497539d Mon Sep 17 00:00:00 2001 From: Tom Rini Date: Wed, 22 Aug 2012 15:31:05 -0700 Subject: 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 --- common/spl/spl.c | 41 ++++++----------------------------------- 1 file changed, 6 insertions(+), 35 deletions(-) (limited to 'common/spl') diff --git a/common/spl/spl.c b/common/spl/spl.c index 1562f2a..3f41014 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; -- cgit v1.1