xref: /rk3399_rockchip-uboot/arch/microblaze/cpu/spl.c (revision 4f66e09bb9fbc47b73f67c3cc08ee2663e8fcdb1)
19d242745SMichal Simek /*
29d242745SMichal Simek  * (C) Copyright 2013 - 2014 Xilinx, Inc
39d242745SMichal Simek  *
49d242745SMichal Simek  * Michal Simek <michal.simek@xilinx.com>
59d242745SMichal Simek  *
69d242745SMichal Simek  * SPDX-License-Identifier:     GPL-2.0+
79d242745SMichal Simek  */
89d242745SMichal Simek 
99d242745SMichal Simek #include <common.h>
109d242745SMichal Simek #include <image.h>
119d242745SMichal Simek #include <spl.h>
129d242745SMichal Simek #include <asm/io.h>
139d242745SMichal Simek #include <asm/u-boot.h>
149d242745SMichal Simek 
159d242745SMichal Simek DECLARE_GLOBAL_DATA_PTR;
169d242745SMichal Simek 
179d242745SMichal Simek bool boot_linux;
189d242745SMichal Simek 
spl_boot_device(void)199d242745SMichal Simek u32 spl_boot_device(void)
209d242745SMichal Simek {
219d242745SMichal Simek 	return BOOT_DEVICE_NOR;
229d242745SMichal Simek }
239d242745SMichal Simek 
249d242745SMichal Simek /* Board initialization after bss clearance */
spl_board_init(void)259d242745SMichal Simek void spl_board_init(void)
269d242745SMichal Simek {
279d242745SMichal Simek 	/* enable console uart printing */
289d242745SMichal Simek 	preloader_console_init();
299d242745SMichal Simek }
309d242745SMichal Simek 
319d242745SMichal Simek #ifdef CONFIG_SPL_OS_BOOT
jump_to_image_linux(struct spl_image_info * spl_image)32*5bf5250eSVikas Manocha void __noreturn jump_to_image_linux(struct spl_image_info *spl_image)
339d242745SMichal Simek {
34*5bf5250eSVikas Manocha 	debug("Entering kernel arg pointer: 0x%p\n", spl_image->arg);
359d242745SMichal Simek 	typedef void (*image_entry_arg_t)(char *, ulong, ulong)
369d242745SMichal Simek 		__attribute__ ((noreturn));
379d242745SMichal Simek 	image_entry_arg_t image_entry =
38ca12e65cSSimon Glass 		(image_entry_arg_t)spl_image->entry_point;
399d242745SMichal Simek 
40*5bf5250eSVikas Manocha 	image_entry(NULL, 0, (ulong)spl_image->arg);
419d242745SMichal Simek }
429d242745SMichal Simek #endif /* CONFIG_SPL_OS_BOOT */
439d242745SMichal Simek 
spl_start_uboot(void)449d242745SMichal Simek int spl_start_uboot(void)
459d242745SMichal Simek {
469d242745SMichal Simek #ifdef CONFIG_SPL_OS_BOOT
479d242745SMichal Simek 	if (boot_linux)
489d242745SMichal Simek 		return 0;
499d242745SMichal Simek #endif
509d242745SMichal Simek 
519d242745SMichal Simek 	return 1;
529d242745SMichal Simek }
53