#include <spl.h>
#include <image.h>
#include <linux/compiler.h>
+#include <asm/mach-types.h>
#ifndef CONFIG_SPL_DM
/* Pointer to as well as the global data structure for SPL */
#endif
/*
- * In the context of SPL, board_init_f must ensure that any clocks/etc for
- * DDR are enabled, ensure that the stack pointer is valid, clear the BSS
- * and call board_init_f. We provide this version by default but mark it
- * as __weak to allow for platforms to do this in their own way if needed.
+ * In the context of SPL, board_init_f() prepares the hardware for execution
+ * from system RAM (DRAM, DDR...). As system RAM may not be available yet,
+ * board_init_f() must use the current GD to store any data which must be
+ * passed on to later stages. These data include the relocation destination,
+ * the future stack, and the future GD location. BSS is cleared after this
+ * function (and therefore must be accessible).
+ *
+ * We provide this version by default but mark it as __weak to allow for
+ * platforms to do this in their own way if needed. Please see the top
+ * level U-Boot README "Board Initialization Flow" section for info on what
+ * to put in this function.
*/
void __weak board_init_f(ulong dummy)
{
- /* Clear the BSS. */
- memset(__bss_start, 0, __bss_end - __bss_start);
-
-#ifndef CONFIG_SPL_DM
- /* TODO: Remove settings of the global data pointer here */
- gd = &gdata;
-#endif
-
- board_init_r(NULL, 0);
}
/*
* 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
-void __noreturn jump_to_image_linux(void *arg)
+void __noreturn jump_to_image_linux(struct spl_image_info *spl_image)
{
unsigned long machid = 0xffffffff;
#ifdef CONFIG_MACH_TYPE
machid = CONFIG_MACH_TYPE;
#endif
- debug("Entering kernel arg pointer: 0x%p\n", arg);
+ debug("Entering kernel arg pointer: 0x%p\n", spl_image->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;
+ (image_entry_arg_t)(uintptr_t) spl_image->entry_point;
cleanup_before_linux();
- image_entry(0, machid, arg);
+ image_entry(0, machid, spl_image->arg);
}
#endif