2 * (C) Copyright 2010-2012
3 * Texas Instruments, <www.ti.com>
5 * Aneesh V <aneesh@ti.com>
6 * Tom Rini <trini@ti.com>
8 * SPDX-License-Identifier: GPL-2.0+
14 #include <linux/compiler.h>
17 /* Pointer to as well as the global data structure for SPL */
18 DECLARE_GLOBAL_DATA_PTR;
21 * WARNING: This is going away very soon. Don't use it and don't submit
22 * pafches that rely on it. The global_data area is set up in crt0.S.
24 gd_t gdata __attribute__ ((section(".data")));
28 * In the context of SPL, board_init_f() prepares the hardware for execution
29 * from system RAM (DRAM, DDR...). As system RAM may not be available yet,
30 * board_init_f() must use the current GD to store any data which must be
31 * passed on to later stages. These data include the relocation destination,
32 * the future stack, and the future GD location. BSS is cleared after this
33 * function (and therefore must be accessible).
35 * We provide this version by default but mark it as __weak to allow for
36 * platforms to do this in their own way if needed. Please see the top
37 * level U-Boot README "Board Initialization Flow" section for info on what
38 * to put in this function.
40 void __weak board_init_f(ulong dummy)
45 * This function jumps to an image with argument. Normally an FDT or ATAGS
47 * arg: Pointer to paramter image in RAM
49 #ifdef CONFIG_SPL_OS_BOOT
50 void __noreturn jump_to_image_linux(struct spl_image_info *spl_image, void *arg)
52 unsigned long machid = 0xffffffff;
53 #ifdef CONFIG_MACH_TYPE
54 machid = CONFIG_MACH_TYPE;
57 debug("Entering kernel arg pointer: 0x%p\n", arg);
58 typedef void (*image_entry_arg_t)(int, int, void *)
59 __attribute__ ((noreturn));
60 image_entry_arg_t image_entry =
61 (image_entry_arg_t)(uintptr_t) spl_image->entry_point;
62 cleanup_before_linux();
63 image_entry(0, machid, arg);