424 lines
10 KiB
C
424 lines
10 KiB
C
/* SPARC Board initialization
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*
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* (C) Copyright 2000-2006
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* (C) Copyright 2007
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* Daniel Hellstrom, Gaisler Research, daniel@gaisler.com.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <command.h>
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#include <malloc.h>
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#include <stdio_dev.h>
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#include <config.h>
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#if defined(CONFIG_CMD_IDE)
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#include <ide.h>
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#endif
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#ifdef CONFIG_STATUS_LED
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#include <status_led.h>
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#endif
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#include <net.h>
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#include <serial.h>
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#include <version.h>
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#if defined(CONFIG_POST)
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#include <post.h>
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#endif
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#ifdef CONFIG_PS2KBD
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#include <keyboard.h>
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#endif
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#ifdef CONFIG_CMD_AMBAPP
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#include <ambapp.h>
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#endif
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#ifdef CONFIG_BITBANGMII
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#include <miiphy.h>
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#endif
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DECLARE_GLOBAL_DATA_PTR;
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/* Debug options
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#define DEBUG_INIT_SEQUENCE
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#define DEBUG_MEM_LAYOUT
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#define DEBUG_COMMANDS
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*/
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extern void timer_interrupt_init(void);
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extern int do_ambapp_print(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]);
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extern int prom_init(void);
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#if defined(CONFIG__CMD_DOC)
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void doc_init(void);
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#endif
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#if !defined(CONFIG_SYS_NO_FLASH)
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static char *failed = "*** failed ***\n";
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#endif
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#include <environment.h>
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ulong monitor_flash_len;
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/************************************************************************
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* Init Utilities *
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************************************************************************
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* Some of this code should be moved into the core functions,
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* but let's get it working (again) first...
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*/
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static int init_baudrate(void)
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{
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gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
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return 0;
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}
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/***********************************************************************/
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/*
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* All attempts to come up with a "common" initialization sequence
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* that works for all boards and architectures failed: some of the
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* requirements are just _too_ different. To get rid of the resulting
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* mess of board dependend #ifdef'ed code we now make the whole
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* initialization sequence configurable to the user.
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*
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* The requirements for any new initalization function is simple: it
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* receives a pointer to the "global data" structure as it's only
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* argument, and returns an integer return code, where 0 means
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* "continue" and != 0 means "fatal error, hang the system".
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*/
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typedef int (init_fnc_t) (void);
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#define WATCHDOG_RESET(x)
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/************************************************************************
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* Initialization sequence *
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************************************************************************
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*/
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init_fnc_t *init_sequence[] = {
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#if defined(CONFIG_BOARD_EARLY_INIT_F)
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board_early_init_f,
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#endif
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serial_init,
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init_timebase,
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#if defined(CONFIG_CMD_AMBAPP)
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ambapp_init_reloc,
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#endif
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env_init,
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init_baudrate,
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console_init_f,
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display_options,
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checkcpu,
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checkboard,
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#if defined(CONFIG_MISC_INIT_F)
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misc_init_f,
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#endif
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#ifdef CONFIG_POST
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post_init_f,
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#endif
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NULL, /* Terminate this list,
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* beware: this list will be relocated
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* which means that NULL will become
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* NULL+RELOC_OFFSET. We simply make
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* NULL be -RELOC_OFFSET instead.
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*/
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};
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/************************************************************************
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*
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* This is the SPARC board initialization routine, running from RAM.
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*
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************************************************************************
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*/
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#ifdef DEBUG_INIT_SEQUENCE
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char *str_init_seq = "INIT_SEQ 00\n";
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char *str_init_seq_done = "\n\rInit sequence done...\r\n\r\n";
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#endif
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void board_init_f(ulong bootflag)
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{
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bd_t *bd;
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init_fnc_t **init_fnc_ptr;
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int j;
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#ifndef CONFIG_SYS_NO_FLASH
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ulong flash_size;
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#endif
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gd = (gd_t *) (CONFIG_SYS_GBL_DATA_OFFSET);
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/* Clear initial global data */
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memset((void *)gd, 0, sizeof(gd_t));
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gd->bd = (bd_t *) (gd + 1); /* At end of global data */
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gd->baudrate = CONFIG_BAUDRATE;
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gd->cpu_clk = CONFIG_SYS_CLK_FREQ;
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bd = gd->bd;
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bd->bi_memstart = CONFIG_SYS_RAM_BASE;
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bd->bi_memsize = CONFIG_SYS_RAM_SIZE;
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bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
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#if defined(CONFIG_SYS_SRAM_BASE) && defined(CONFIG_SYS_SRAM_SIZE)
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bd->bi_sramstart = CONFIG_SYS_SRAM_BASE;
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bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE;
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#endif
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bd->bi_baudrate = CONFIG_BAUDRATE;
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bd->bi_bootflags = bootflag; /* boot / reboot flag (for LynxOS) */
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gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
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gd->reloc_off = CONFIG_SYS_RELOC_MONITOR_BASE - CONFIG_SYS_MONITOR_BASE;
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for (init_fnc_ptr = init_sequence, j = 0; *init_fnc_ptr;
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++init_fnc_ptr, j++) {
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#ifdef DEBUG_INIT_SEQUENCE
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if (j > 9)
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str_init_seq[9] = '0' + (j / 10);
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str_init_seq[10] = '0' + (j - (j / 10) * 10);
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serial_puts(str_init_seq);
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#endif
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if ((*init_fnc_ptr + gd->reloc_off) () != 0) {
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hang();
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}
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}
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#ifdef DEBUG_INIT_SEQUENCE
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serial_puts(str_init_seq_done);
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#endif
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/*
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* Now that we have DRAM mapped and working, we can
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* relocate the code and continue running from DRAM.
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*
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* Reserve memory at end of RAM for (top down in that order):
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* - kernel log buffer
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* - protected RAM
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* - LCD framebuffer
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* - monitor code
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* - board info struct
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*/
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#ifdef DEBUG_MEM_LAYOUT
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printf("CONFIG_SYS_MONITOR_BASE: 0x%lx\n", CONFIG_SYS_MONITOR_BASE);
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printf("CONFIG_ENV_ADDR: 0x%lx\n", CONFIG_ENV_ADDR);
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printf("CONFIG_SYS_RELOC_MONITOR_BASE: 0x%lx (%d)\n", CONFIG_SYS_RELOC_MONITOR_BASE,
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CONFIG_SYS_MONITOR_LEN);
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printf("CONFIG_SYS_MALLOC_BASE: 0x%lx (%d)\n", CONFIG_SYS_MALLOC_BASE,
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CONFIG_SYS_MALLOC_LEN);
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printf("CONFIG_SYS_INIT_SP_OFFSET: 0x%lx (%d)\n", CONFIG_SYS_INIT_SP_OFFSET,
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CONFIG_SYS_STACK_SIZE);
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printf("CONFIG_SYS_PROM_OFFSET: 0x%lx (%d)\n", CONFIG_SYS_PROM_OFFSET,
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CONFIG_SYS_PROM_SIZE);
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printf("CONFIG_SYS_GBL_DATA_OFFSET: 0x%lx (%d)\n", CONFIG_SYS_GBL_DATA_OFFSET,
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GENERATED_GBL_DATA_SIZE);
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#endif
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#ifdef CONFIG_POST
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post_bootmode_init();
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post_run(NULL, POST_ROM | post_bootmode_get(0));
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#endif
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#if defined(CONFIG_NEEDS_MANUAL_RELOC)
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/*
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* We have to relocate the command table manually
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*/
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fixup_cmdtable(ll_entry_start(cmd_tbl_t, cmd),
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ll_entry_count(cmd_tbl_t, cmd));
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#endif /* defined(CONFIG_NEEDS_MANUAL_RELOC) */
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#if defined(CONFIG_CMD_AMBAPP) && defined(CONFIG_SYS_AMBAPP_PRINT_ON_STARTUP)
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puts("AMBA:\n");
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do_ambapp_print(NULL, 0, 0, NULL);
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#endif
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/* initialize higher level parts of CPU like time base and timers */
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cpu_init_r();
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/* start timer */
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timer_interrupt_init();
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/*
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* Enable Interrupts before any calls to udelay,
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* the flash driver may use udelay resulting in
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* a hang if not timer0 IRQ is enabled.
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*/
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interrupt_init();
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/* The Malloc area is immediately below the monitor copy in RAM */
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mem_malloc_init(CONFIG_SYS_MALLOC_BASE,
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CONFIG_SYS_MALLOC_END - CONFIG_SYS_MALLOC_BASE);
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#if !defined(CONFIG_SYS_NO_FLASH)
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puts("Flash: ");
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if ((flash_size = flash_init()) > 0) {
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# ifdef CONFIG_SYS_FLASH_CHECKSUM
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print_size(flash_size, "");
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/*
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* Compute and print flash CRC if flashchecksum is set to 'y'
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*
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* NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
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*/
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if (getenv_yesno("flashchecksum") == 1) {
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printf(" CRC: %08lX",
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crc32(0, (const unsigned char *)CONFIG_SYS_FLASH_BASE,
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flash_size)
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);
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}
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putc('\n');
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# else /* !CONFIG_SYS_FLASH_CHECKSUM */
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print_size(flash_size, "\n");
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# endif /* CONFIG_SYS_FLASH_CHECKSUM */
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} else {
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puts(failed);
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hang();
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}
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bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; /* update start of FLASH memory */
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bd->bi_flashsize = flash_size; /* size of FLASH memory (final value) */
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#if CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
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bd->bi_flashoffset = monitor_flash_len; /* reserved area for startup monitor */
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#else
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bd->bi_flashoffset = 0;
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#endif
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#else /* CONFIG_SYS_NO_FLASH */
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bd->bi_flashsize = 0;
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bd->bi_flashstart = 0;
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bd->bi_flashoffset = 0;
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#endif /* !CONFIG_SYS_NO_FLASH */
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#ifdef CONFIG_SPI
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# if !defined(CONFIG_ENV_IS_IN_EEPROM)
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spi_init_f();
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# endif
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spi_init_r();
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#endif
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/* relocate environment function pointers etc. */
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env_relocate();
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#if defined(CONFIG_BOARD_LATE_INIT)
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board_late_init();
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#endif
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#ifdef CONFIG_ID_EEPROM
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mac_read_from_eeprom();
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#endif
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#if defined(CONFIG_PCI)
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/*
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* Do pci configuration
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*/
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pci_init();
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#endif
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/* Initialize stdio devices */
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stdio_init();
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/* Initialize the jump table for applications */
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jumptable_init();
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/* Initialize the console (after the relocation and devices init) */
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console_init_r();
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#ifdef CONFIG_STATUS_LED
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status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
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#endif
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udelay(20);
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/* Initialize from environment */
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load_addr = getenv_ulong("loadaddr", 16, load_addr);
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WATCHDOG_RESET();
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#if defined(CONFIG_CMD_DOC)
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WATCHDOG_RESET();
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puts("DOC: ");
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doc_init();
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#endif
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#ifdef CONFIG_BITBANGMII
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bb_miiphy_init();
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#endif
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#if defined(CONFIG_CMD_NET)
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WATCHDOG_RESET();
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puts("Net: ");
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eth_initialize(bd);
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#endif
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#if defined(CONFIG_CMD_NET) && defined(CONFIG_RESET_PHY_R)
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WATCHDOG_RESET();
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debug("Reset Ethernet PHY\n");
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reset_phy();
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#endif
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#ifdef CONFIG_POST
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post_run(NULL, POST_RAM | post_bootmode_get(0));
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#endif
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#if defined(CONFIG_CMD_IDE)
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WATCHDOG_RESET();
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puts("IDE: ");
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ide_init();
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#endif /* CONFIG_CMD_IDE */
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#ifdef CONFIG_LAST_STAGE_INIT
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WATCHDOG_RESET();
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/*
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* Some parts can be only initialized if all others (like
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* Interrupts) are up and running (i.e. the PC-style ISA
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* keyboard).
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*/
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last_stage_init();
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#endif
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#ifdef CONFIG_PS2KBD
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puts("PS/2: ");
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kbd_init();
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#endif
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prom_init();
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/* main_loop */
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for (;;) {
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WATCHDOG_RESET();
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main_loop();
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}
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}
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void hang(void)
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{
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puts("### ERROR ### Please RESET the board ###\n");
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#ifdef CONFIG_SHOW_BOOT_PROGRESS
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bootstage_error(BOOTSTAGE_ID_NEED_RESET);
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#endif
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for (;;) ;
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}
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/************************************************************************/
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