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>
19 #include <linux/compiler.h>
20 #include <asm/processor.h>
21 #include <asm/microblaze_intc.h>
24 DECLARE_GLOBAL_DATA_PTR;
27 * All attempts to come up with a "common" initialization sequence
28 * that works for all boards and architectures failed: some of the
29 * requirements are just _too_ different. To get rid of the resulting
30 * mess of board dependend #ifdef'ed code we now make the whole
31 * initialization sequence configurable to the user.
33 * The requirements for any new initalization function is simple: it
34 * receives a pointer to the "global data" structure as it's only
35 * argument, and returns an integer return code, where 0 means
36 * "continue" and != 0 means "fatal error, hang the system".
38 typedef int (init_fnc_t) (void);
40 init_fnc_t *init_sequence[] = {
42 #ifdef CONFIG_OF_CONTROL
48 #ifdef CONFIG_XILINX_TB_WATCHDOG
55 unsigned long monitor_flash_len;
57 void board_init_f(ulong not_used)
60 init_fnc_t **init_fnc_ptr;
61 gd = (gd_t *)(CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_GBL_DATA_OFFSET);
62 bd = (bd_t *)(CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_GBL_DATA_OFFSET
63 - GENERATED_BD_INFO_SIZE);
64 #if defined(CONFIG_CMD_FLASH)
67 asm ("nop"); /* FIXME gd is not initialize - wait */
68 memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
69 memset((void *)bd, 0, GENERATED_BD_INFO_SIZE);
71 gd->baudrate = CONFIG_BAUDRATE;
72 bd->bi_baudrate = CONFIG_BAUDRATE;
73 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
74 bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
75 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
77 monitor_flash_len = __end - __text_start;
79 #ifdef CONFIG_OF_EMBED
80 /* Get a pointer to the FDT */
81 gd->fdt_blob = _binary_dt_dtb_start;
82 #elif defined CONFIG_OF_SEPARATE
83 /* FDT is at end of image */
84 gd->fdt_blob = (void *)__end;
86 /* Allow the early environment to override the fdt address */
87 gd->fdt_blob = (void *)getenv_ulong("fdtcontroladdr", 16,
88 (uintptr_t)gd->fdt_blob);
91 * The Malloc area is immediately below the monitor copy in DRAM
92 * aka CONFIG_SYS_MONITOR_BASE - Note there is no need for reloc_off
93 * as our monitory code is run from SDRAM
95 mem_malloc_init(CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN);
99 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
101 if ((*init_fnc_ptr) () != 0)
105 #ifdef CONFIG_OF_CONTROL
106 /* For now, put this check after the console is ready */
107 if (fdtdec_prepare_fdt())
108 panic("** No FDT - please see doc/README.fdt-control");
110 printf("DTB: 0x%x\n", (u32)gd->fdt_blob);
114 printf("\t\tIcache:%s\n", icache_status() ? "ON" : "OFF");
115 printf("\t\tDcache:%s\n", dcache_status() ? "ON" : "OFF");
116 printf("\tU-Boot Start:0x%08x\n", CONFIG_SYS_TEXT_BASE);
118 #if defined(CONFIG_CMD_FLASH)
120 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
121 flash_size = flash_init();
122 if (bd->bi_flashstart && flash_size > 0) {
123 # ifdef CONFIG_SYS_FLASH_CHECKSUM
124 print_size(flash_size, "");
126 * Compute and print flash CRC if flashchecksum is set to 'y'
128 * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
130 if (getenv_yesno("flashchecksum") == 1) {
132 crc32(0, (const u8 *)bd->bi_flashstart,
137 # else /* !CONFIG_SYS_FLASH_CHECKSUM */
138 print_size(flash_size, "\n");
139 # endif /* CONFIG_SYS_FLASH_CHECKSUM */
140 bd->bi_flashsize = flash_size;
141 bd->bi_flashoffset = bd->bi_flashstart + flash_size;
143 puts("Flash init FAILED");
144 bd->bi_flashstart = 0;
145 bd->bi_flashsize = 0;
146 bd->bi_flashoffset = 0;
150 /* relocate environment function pointers etc. */
153 /* Initialize stdio devices */
156 /* Initialize the jump table for applications */
159 /* Initialize the console (after the relocation and devices init) */
164 /* Initialize from environment */
165 load_addr = getenv_ulong("loadaddr", 16, load_addr);
167 #if defined(CONFIG_CMD_NET)
169 eth_initialize(gd->bd);
172 eth_getenv_enetaddr("ethaddr", enetaddr);
173 printf("MAC: %pM\n", enetaddr);