Blame view

bootloader/u-boot_2015_04/board/vpac270/onenand.c 1022 Bytes
6b13f685e   김민수   BSP 최초 추가
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
  /*
   * Voipac PXA270 OneNAND SPL
   *
   * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
   *
   * SPDX-License-Identifier:	GPL-2.0+
   */
  
  #include <common.h>
  #include <config.h>
  #include <asm/io.h>
  #include <onenand_uboot.h>
  #include <asm/arch/pxa.h>
  
  void board_init_f(unsigned long unused)
  {
  	extern uint32_t _end;
  	uint32_t tmp;
  
  	asm volatile("mov %0, pc" : "=r"(tmp));
  	tmp >>= 24;
  
  	/* The code runs from OneNAND RAM, copy SPL to SRAM and execute it. */
  	if (tmp == 0) {
  		tmp = (uint32_t)&_end - CONFIG_SPL_TEXT_BASE;
  		onenand_spl_load_image(0, tmp, (void *)CONFIG_SPL_TEXT_BASE);
  		asm volatile("mov pc, %0" : : "r"(CONFIG_SPL_TEXT_BASE));
  	}
  
  	/* Hereby, the code runs from (S)RAM, copy U-Boot and execute it. */
  	arch_cpu_init();
  	pxa2xx_dram_init();
  	onenand_spl_load_image(CONFIG_SPL_ONENAND_LOAD_ADDR,
  				CONFIG_SPL_ONENAND_LOAD_SIZE,
  				(void *)CONFIG_SYS_TEXT_BASE);
  	asm volatile("mov pc, %0" : : "r"(CONFIG_SYS_TEXT_BASE));
  
  	for (;;)
  		;
  }
  
  void __attribute__((noreturn)) hang(void)
  {
  	for (;;)
  		;
  }