diff options
Diffstat (limited to 'lib_mips/board.c')
| -rw-r--r-- | lib_mips/board.c | 436 |
1 files changed, 0 insertions, 436 deletions
diff --git a/lib_mips/board.c b/lib_mips/board.c deleted file mode 100644 index b2d113e870a..00000000000 --- a/lib_mips/board.c +++ /dev/null @@ -1,436 +0,0 @@ -/* - * (C) Copyright 2003 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <common.h> -#include <command.h> -#include <malloc.h> -#include <stdio_dev.h> -#include <timestamp.h> -#include <version.h> -#include <net.h> -#include <environment.h> -#include <nand.h> -#include <onenand_uboot.h> -#include <spi.h> - -#ifdef CONFIG_BITBANGMII -#include <miiphy.h> -#endif - -DECLARE_GLOBAL_DATA_PTR; - -#if ( ((CONFIG_ENV_ADDR+CONFIG_ENV_SIZE) < CONFIG_SYS_MONITOR_BASE) || \ - (CONFIG_ENV_ADDR >= (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN)) ) || \ - defined(CONFIG_ENV_IS_IN_NVRAM) -#define TOTAL_MALLOC_LEN (CONFIG_SYS_MALLOC_LEN + CONFIG_ENV_SIZE) -#else -#define TOTAL_MALLOC_LEN CONFIG_SYS_MALLOC_LEN -#endif - -#undef DEBUG - -extern int timer_init(void); - -extern int incaip_set_cpuclk(void); - -extern ulong uboot_end_data; -extern ulong uboot_end; - -ulong monitor_flash_len; - -const char version_string[] = - U_BOOT_VERSION" (" U_BOOT_DATE " - " U_BOOT_TIME ")"; - -static char *failed = "*** failed ***\n"; - -/* - * mips_io_port_base is the begin of the address space to which x86 style - * I/O ports are mapped. - */ -unsigned long mips_io_port_base = -1; - -int __board_early_init_f(void) -{ - /* - * Nothing to do in this dummy implementation - */ - return 0; -} -int board_early_init_f(void) __attribute__((weak, alias("__board_early_init_f"))); - - -static int init_func_ram (void) -{ -#ifdef CONFIG_BOARD_TYPES - int board_type = gd->board_type; -#else - int board_type = 0; /* use dummy arg */ -#endif - puts ("DRAM: "); - - if ((gd->ram_size = initdram (board_type)) > 0) { - print_size (gd->ram_size, "\n"); - return (0); - } - puts (failed); - return (1); -} - -static int display_banner(void) -{ - - printf ("\n\n%s\n\n", version_string); - return (0); -} - -#ifndef CONFIG_SYS_NO_FLASH -static void display_flash_config(ulong size) -{ - puts ("Flash: "); - print_size (size, "\n"); -} -#endif - -static int init_baudrate (void) -{ - char tmp[64]; /* long enough for environment variables */ - int i = getenv_r ("baudrate", tmp, sizeof (tmp)); - - gd->baudrate = (i > 0) - ? (int) simple_strtoul (tmp, NULL, 10) - : CONFIG_BAUDRATE; - - return (0); -} - - -/* - * Breath some life into the board... - * - * The first part of initialization is running from Flash memory; - * its main purpose is to initialize the RAM so that we - * can relocate the monitor code to RAM. - */ - -/* - * All attempts to come up with a "common" initialization sequence - * that works for all boards and architectures failed: some of the - * requirements are just _too_ different. To get rid of the resulting - * mess of board dependend #ifdef'ed code we now make the whole - * initialization sequence configurable to the user. - * - * The requirements for any new initalization function is simple: it - * receives a pointer to the "global data" structure as it's only - * argument, and returns an integer return code, where 0 means - * "continue" and != 0 means "fatal error, hang the system". - */ -typedef int (init_fnc_t) (void); - -init_fnc_t *init_sequence[] = { - board_early_init_f, - timer_init, - env_init, /* initialize environment */ -#ifdef CONFIG_INCA_IP - incaip_set_cpuclk, /* set cpu clock according to environment variable */ -#endif - init_baudrate, /* initialze baudrate settings */ - serial_init, /* serial communications setup */ - console_init_f, - display_banner, /* say that we are here */ - checkboard, - init_func_ram, - NULL, -}; - - -void board_init_f(ulong bootflag) -{ - gd_t gd_data, *id; - bd_t *bd; - init_fnc_t **init_fnc_ptr; - ulong addr, addr_sp, len = (ulong)&uboot_end - CONFIG_SYS_MONITOR_BASE; - ulong *s; -#ifdef CONFIG_PURPLE - void copy_code (ulong); -#endif - - /* Pointer is writable since we allocated a register for it. - */ - gd = &gd_data; - /* compiler optimization barrier needed for GCC >= 3.4 */ - __asm__ __volatile__("": : :"memory"); - - memset ((void *)gd, 0, sizeof (gd_t)); - - for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) { - if ((*init_fnc_ptr)() != 0) { - hang (); - } - } - - /* - * Now that we have DRAM mapped and working, we can - * relocate the code and continue running from DRAM. - */ - addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size; - - /* We can reserve some RAM "on top" here. - */ - - /* round down to next 4 kB limit. - */ - addr &= ~(4096 - 1); - debug ("Top of RAM usable for U-Boot at: %08lx\n", addr); - - /* Reserve memory for U-Boot code, data & bss - * round down to next 16 kB limit - */ - addr -= len; - addr &= ~(16 * 1024 - 1); - - debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr); - - /* Reserve memory for malloc() arena. - */ - addr_sp = addr - TOTAL_MALLOC_LEN; - debug ("Reserving %dk for malloc() at: %08lx\n", - TOTAL_MALLOC_LEN >> 10, addr_sp); - - /* - * (permanently) allocate a Board Info struct - * and a permanent copy of the "global" data - */ - addr_sp -= sizeof(bd_t); - bd = (bd_t *)addr_sp; - gd->bd = bd; - debug ("Reserving %zu Bytes for Board Info at: %08lx\n", - sizeof(bd_t), addr_sp); - - addr_sp -= sizeof(gd_t); - id = (gd_t *)addr_sp; - debug ("Reserving %zu Bytes for Global Data at: %08lx\n", - sizeof (gd_t), addr_sp); - - /* Reserve memory for boot params. - */ - addr_sp -= CONFIG_SYS_BOOTPARAMS_LEN; - bd->bi_boot_params = addr_sp; - debug ("Reserving %dk for boot params() at: %08lx\n", - CONFIG_SYS_BOOTPARAMS_LEN >> 10, addr_sp); - - /* - * Finally, we set up a new (bigger) stack. - * - * Leave some safety gap for SP, force alignment on 16 byte boundary - * Clear initial stack frame - */ - addr_sp -= 16; - addr_sp &= ~0xF; - s = (ulong *)addr_sp; - *s-- = 0; - *s-- = 0; - addr_sp = (ulong)s; - debug ("Stack Pointer at: %08lx\n", addr_sp); - - /* - * Save local variables to board info struct - */ - bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of DRAM memory */ - bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */ - bd->bi_baudrate = gd->baudrate; /* Console Baudrate */ - - memcpy (id, (void *)gd, sizeof (gd_t)); - - /* On the purple board we copy the code in a special way - * in order to solve flash problems - */ -#ifdef CONFIG_PURPLE - copy_code(addr); -#endif - - relocate_code (addr_sp, id, addr); - - /* NOTREACHED - relocate_code() does not return */ -} -/************************************************************************ - * - * This is the next part if the initialization sequence: we are now - * running from RAM and have a "normal" C environment, i. e. global - * data can be written, BSS has been cleared, the stack size in not - * that critical any more, etc. - * - ************************************************************************ - */ - -void board_init_r (gd_t *id, ulong dest_addr) -{ - cmd_tbl_t *cmdtp; -#ifndef CONFIG_SYS_NO_FLASH - ulong size; -#endif - extern void malloc_bin_reloc (void); -#ifndef CONFIG_ENV_IS_NOWHERE - extern char * env_name_spec; -#endif - char *s; - bd_t *bd; - - gd = id; - gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ - - debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr); - - gd->reloc_off = dest_addr - CONFIG_SYS_MONITOR_BASE; - - monitor_flash_len = (ulong)&uboot_end_data - dest_addr; - - /* - * We have to relocate the command table manually - */ - for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) { - ulong addr; - - addr = (ulong) (cmdtp->cmd) + gd->reloc_off; -#if 0 - printf ("Command \"%s\": 0x%08lx => 0x%08lx\n", - cmdtp->name, (ulong) (cmdtp->cmd), addr); -#endif - cmdtp->cmd = - (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr; - - addr = (ulong)(cmdtp->name) + gd->reloc_off; - cmdtp->name = (char *)addr; - - if (cmdtp->usage) { - addr = (ulong)(cmdtp->usage) + gd->reloc_off; - cmdtp->usage = (char *)addr; - } -#ifdef CONFIG_SYS_LONGHELP - if (cmdtp->help) { - addr = (ulong)(cmdtp->help) + gd->reloc_off; - cmdtp->help = (char *)addr; - } -#endif - } - /* there are some other pointer constants we must deal with */ -#ifndef CONFIG_ENV_IS_NOWHERE - env_name_spec += gd->reloc_off; -#endif - - bd = gd->bd; - - /* The Malloc area is immediately below the monitor copy in DRAM */ - mem_malloc_init(CONFIG_SYS_MONITOR_BASE + gd->reloc_off - - TOTAL_MALLOC_LEN, TOTAL_MALLOC_LEN); - malloc_bin_reloc(); - -#ifndef CONFIG_SYS_NO_FLASH - /* configure available FLASH banks */ - size = flash_init(); - display_flash_config (size); - bd->bi_flashsize = size; -#endif - - bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; -#if CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE - bd->bi_flashoffset = monitor_flash_len; /* reserved area for U-Boot */ -#else - bd->bi_flashoffset = 0; -#endif - -#ifdef CONFIG_CMD_NAND - puts ("NAND: "); - nand_init (); /* go init the NAND */ -#endif - -#if defined(CONFIG_CMD_ONENAND) - onenand_init(); -#endif - - /* relocate environment function pointers etc. */ - env_relocate(); - - /* IP Address */ - bd->bi_ip_addr = getenv_IPaddr("ipaddr"); - -#if defined(CONFIG_PCI) - /* - * Do pci configuration - */ - pci_init(); -#endif - -/** leave this here (after malloc(), environment and PCI are working) **/ - /* Initialize stdio devices */ - stdio_init (); - - jumptable_init (); - - /* Initialize the console (after the relocation and devices init) */ - console_init_r (); -/** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **/ - - /* Initialize from environment */ - if ((s = getenv ("loadaddr")) != NULL) { - load_addr = simple_strtoul (s, NULL, 16); - } -#if defined(CONFIG_CMD_NET) - if ((s = getenv ("bootfile")) != NULL) { - copy_filename (BootFile, s, sizeof (BootFile)); - } -#endif - -#ifdef CONFIG_CMD_SPI - puts ("SPI: "); - spi_init (); /* go init the SPI */ - puts ("ready\n"); -#endif - -#if defined(CONFIG_MISC_INIT_R) - /* miscellaneous platform dependent initialisations */ - misc_init_r (); -#endif - -#ifdef CONFIG_BITBANGMII - bb_miiphy_init(); -#endif -#if defined(CONFIG_CMD_NET) -#if defined(CONFIG_NET_MULTI) - puts ("Net: "); -#endif - eth_initialize(gd->bd); -#endif - - /* main_loop() can return to retry autoboot, if so just run it again. */ - for (;;) { - main_loop (); - } - - /* NOTREACHED - no way out of command loop except booting */ -} - -void hang (void) -{ - puts ("### ERROR ### Please RESET the board ###\n"); - for (;;); -} |