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+
15 #include <linux/compiler.h>
16 #include <asm/mach-types.h>
19 /* Pointer to as well as the global data structure for SPL */
20 DECLARE_GLOBAL_DATA_PTR;
23 * WARNING: This is going away very soon. Don't use it and don't submit
24 * pafches that rely on it. The global_data area is set up in crt0.S.
26 gd_t gdata __attribute__ ((section(".data")));
30 * In the context of SPL, board_init_f() prepares the hardware for execution
31 * from system RAM (DRAM, DDR...). As system RAM may not be available yet,
32 * board_init_f() must use the current GD to store any data which must be
33 * passed on to later stages. These data include the relocation destination,
34 * the future stack, and the future GD location. BSS is cleared after this
35 * function (and therefore must be accessible).
37 * We provide this version by default but mark it as __weak to allow for
38 * platforms to do this in their own way if needed. Please see the top
39 * level U-Boot README "Board Initialization Flow" section for info on what
40 * to put in this function.
42 void __weak board_init_f(ulong dummy)
47 * This function jumps to an image with argument. Normally an FDT or ATAGS
50 #ifdef CONFIG_SPL_OS_BOOT
52 void __noreturn jump_to_image_linux(struct spl_image_info *spl_image)
54 debug("Entering kernel arg pointer: 0x%p\n", spl_image->arg);
55 cleanup_before_linux();
56 armv8_switch_to_el2((u64)spl_image->arg, 0, 0, 0,
57 spl_image->entry_point, ES_TO_AARCH64);
60 void __noreturn jump_to_image_linux(struct spl_image_info *spl_image)
62 unsigned long machid = 0xffffffff;
63 #ifdef CONFIG_MACH_TYPE
64 machid = CONFIG_MACH_TYPE;
67 debug("Entering kernel arg pointer: 0x%p\n", spl_image->arg);
68 typedef void (*image_entry_arg_t)(int, int, void *)
69 __attribute__ ((noreturn));
70 image_entry_arg_t image_entry =
71 (image_entry_arg_t)(uintptr_t) spl_image->entry_point;
72 cleanup_before_linux();
73 image_entry(0, machid, spl_image->arg);
75 #endif /* CONFIG_ARM64 */