2 * (C) Copyright 2007 Michal Simek
3 * (C) Copyright 2004 Atmark Techno, Inc.
5 * Michal SIMEK <monstr@monstr.eu>
6 * Yasushi SHOJI <yashi@atmark-techno.com>
8 * SPDX-License-Identifier: GPL-2.0+
16 #include <stdio_dev.h>
20 #include <linux/compiler.h>
21 #include <asm/processor.h>
22 #include <asm/microblaze_intc.h>
25 DECLARE_GLOBAL_DATA_PTR;
28 * All attempts to come up with a "common" initialization sequence
29 * that works for all boards and architectures failed: some of the
30 * requirements are just _too_ different. To get rid of the resulting
31 * mess of board dependend #ifdef'ed code we now make the whole
32 * initialization sequence configurable to the user.
34 * The requirements for any new initalization function is simple: it
35 * receives a pointer to the "global data" structure as it's only
36 * argument, and returns an integer return code, where 0 means
37 * "continue" and != 0 means "fatal error, hang the system".
39 typedef int (init_fnc_t) (void);
41 init_fnc_t *init_sequence[] = {
43 #ifdef CONFIG_OF_CONTROL
49 #ifdef CONFIG_XILINX_TB_WATCHDOG
56 unsigned long monitor_flash_len;
58 void board_init_f(ulong not_used)
61 init_fnc_t **init_fnc_ptr;
62 gd = (gd_t *)(CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_GBL_DATA_OFFSET);
63 bd = (bd_t *)(CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_GBL_DATA_OFFSET
64 - GENERATED_BD_INFO_SIZE);
65 #if defined(CONFIG_CMD_FLASH)
68 asm ("nop"); /* FIXME gd is not initialize - wait */
69 memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
70 memset((void *)bd, 0, GENERATED_BD_INFO_SIZE);
72 gd->baudrate = CONFIG_BAUDRATE;
73 bd->bi_baudrate = CONFIG_BAUDRATE;
74 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
75 bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
76 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
78 monitor_flash_len = __end - __text_start;
80 #ifdef CONFIG_OF_EMBED
81 /* Get a pointer to the FDT */
82 gd->fdt_blob = _binary_dt_dtb_start;
83 #elif defined CONFIG_OF_SEPARATE
84 /* FDT is at end of image */
85 gd->fdt_blob = (void *)__end;
87 /* Allow the early environment to override the fdt address */
88 gd->fdt_blob = (void *)getenv_ulong("fdtcontroladdr", 16,
89 (uintptr_t)gd->fdt_blob);
92 * The Malloc area is immediately below the monitor copy in DRAM
93 * aka CONFIG_SYS_MONITOR_BASE - Note there is no need for reloc_off
94 * as our monitory code is run from SDRAM
96 mem_malloc_init(CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN);
100 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
102 if ((*init_fnc_ptr) () != 0)
106 #ifdef CONFIG_OF_CONTROL
107 /* For now, put this check after the console is ready */
108 if (fdtdec_prepare_fdt())
109 panic("** No FDT - please see doc/README.fdt-control");
111 printf("DTB: 0x%x\n", (u32)gd->fdt_blob);
115 printf("\t\tIcache:%s\n", icache_status() ? "ON" : "OFF");
116 printf("\t\tDcache:%s\n", dcache_status() ? "ON" : "OFF");
117 printf("\tU-Boot Start:0x%08x\n", CONFIG_SYS_TEXT_BASE);
119 #if defined(CONFIG_CMD_FLASH)
121 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
122 flash_size = flash_init();
123 if (bd->bi_flashstart && flash_size > 0) {
124 # ifdef CONFIG_SYS_FLASH_CHECKSUM
125 print_size(flash_size, "");
127 * Compute and print flash CRC if flashchecksum is set to 'y'
129 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
131 if (getenv_yesno("flashchecksum") == 1) {
133 crc32(0, (const u8 *)bd->bi_flashstart,
138 # else /* !CONFIG_SYS_FLASH_CHECKSUM */
139 print_size(flash_size, "\n");
140 # endif /* CONFIG_SYS_FLASH_CHECKSUM */
141 bd->bi_flashsize = flash_size;
142 bd->bi_flashoffset = bd->bi_flashstart + flash_size;
144 puts("Flash init FAILED");
145 bd->bi_flashstart = 0;
146 bd->bi_flashsize = 0;
147 bd->bi_flashoffset = 0;
155 /* relocate environment function pointers etc. */
158 /* Initialize stdio devices */
161 /* Initialize the jump table for applications */
164 /* Initialize the console (after the relocation and devices init) */
169 /* Initialize from environment */
170 load_addr = getenv_ulong("loadaddr", 16, load_addr);
172 #if defined(CONFIG_CMD_NET)
174 eth_initialize(gd->bd);
177 eth_getenv_enetaddr("ethaddr", enetaddr);
178 printf("MAC: %pM\n", enetaddr);