| /* |
| * (C) Copyright 2000-2010 |
| * 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 <watchdog.h> |
| #include <command.h> |
| #include <malloc.h> |
| #include <stdio_dev.h> |
| #ifdef CONFIG_8xx |
| #include <mpc8xx.h> |
| #endif |
| #ifdef CONFIG_5xx |
| #include <mpc5xx.h> |
| #endif |
| #ifdef CONFIG_MPC5xxx |
| #include <mpc5xxx.h> |
| #endif |
| #if defined(CONFIG_CMD_IDE) |
| #include <ide.h> |
| #endif |
| #if defined(CONFIG_CMD_SCSI) |
| #include <scsi.h> |
| #endif |
| #if defined(CONFIG_CMD_KGDB) |
| #include <kgdb.h> |
| #endif |
| #ifdef CONFIG_STATUS_LED |
| #include <status_led.h> |
| #endif |
| #include <net.h> |
| #ifdef CONFIG_GENERIC_MMC |
| #include <mmc.h> |
| #endif |
| #include <serial.h> |
| #ifdef CONFIG_SYS_ALLOC_DPRAM |
| #if !defined(CONFIG_CPM2) |
| #include <commproc.h> |
| #endif |
| #endif |
| #include <version.h> |
| #if defined(CONFIG_BAB7xx) |
| #include <w83c553f.h> |
| #endif |
| #include <dtt.h> |
| #if defined(CONFIG_POST) |
| #include <post.h> |
| #endif |
| #if defined(CONFIG_LOGBUFFER) |
| #include <logbuff.h> |
| #endif |
| #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500) |
| #include <asm/cache.h> |
| #endif |
| #ifdef CONFIG_PS2KBD |
| #include <keyboard.h> |
| #endif |
| |
| #ifdef CONFIG_ADDR_MAP |
| #include <asm/mmu.h> |
| #endif |
| |
| #ifdef CONFIG_MP |
| #include <asm/mp.h> |
| #endif |
| |
| #ifdef CONFIG_BITBANGMII |
| #include <miiphy.h> |
| #endif |
| |
| #ifdef CONFIG_SYS_UPDATE_FLASH_SIZE |
| extern int update_flash_size (int flash_size); |
| #endif |
| |
| #if defined(CONFIG_SC3) |
| extern void sc3_read_eeprom(void); |
| #endif |
| |
| #if defined(CONFIG_CMD_DOC) |
| void doc_init (void); |
| #endif |
| #if defined(CONFIG_HARD_I2C) || \ |
| defined(CONFIG_SOFT_I2C) |
| #include <i2c.h> |
| #endif |
| #include <spi.h> |
| #include <nand.h> |
| |
| static char *failed = "*** failed ***\n"; |
| |
| #if defined(CONFIG_OXC) || defined(CONFIG_RMU) |
| extern flash_info_t flash_info[]; |
| #endif |
| |
| #if defined(CONFIG_START_IDE) |
| extern int board_start_ide(void); |
| #endif |
| #include <environment.h> |
| |
| DECLARE_GLOBAL_DATA_PTR; |
| |
| #if !defined(CONFIG_SYS_MEM_TOP_HIDE) |
| #define CONFIG_SYS_MEM_TOP_HIDE 0 |
| #endif |
| |
| extern ulong __init_end; |
| extern ulong __bss_end__; |
| ulong monitor_flash_len; |
| |
| #if defined(CONFIG_CMD_BEDBUG) |
| #include <bedbug/type.h> |
| #endif |
| |
| /************************************************************************ |
| * Utilities * |
| ************************************************************************ |
| */ |
| |
| /* |
| * 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 Utilities * |
| ************************************************************************ |
| * Some of this code should be moved into the core functions, |
| * but let's get it working (again) first... |
| */ |
| |
| static int init_baudrate (void) |
| { |
| char tmp[64]; /* long enough for environment variables */ |
| int i = getenv_f("baudrate", tmp, sizeof (tmp)); |
| |
| gd->baudrate = (i > 0) |
| ? (int) simple_strtoul (tmp, NULL, 10) |
| : CONFIG_BAUDRATE; |
| return (0); |
| } |
| |
| /***********************************************************************/ |
| |
| void __board_add_ram_info(int use_default) |
| { |
| /* please define platform specific board_add_ram_info() */ |
| } |
| void board_add_ram_info(int) __attribute__((weak, alias("__board_add_ram_info"))); |
| |
| int __board_flash_wp_on(void) |
| { |
| /* |
| * Most flashes can't be detected when write protection is enabled, |
| * so provide a way to let U-Boot gracefully ignore write protected |
| * devices. |
| */ |
| return 0; |
| } |
| int board_flash_wp_on(void) __attribute__((weak, alias("__board_flash_wp_on"))); |
| |
| void __cpu_secondary_init_r(void) |
| { |
| } |
| void cpu_secondary_init_r(void) |
| __attribute__((weak, alias("__cpu_secondary_init_r"))); |
| |
| 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, ""); |
| board_add_ram_info(0); |
| putc('\n'); |
| return (0); |
| } |
| puts (failed); |
| return (1); |
| } |
| |
| /***********************************************************************/ |
| |
| #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C) |
| static int init_func_i2c (void) |
| { |
| puts ("I2C: "); |
| i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); |
| puts ("ready\n"); |
| return (0); |
| } |
| #endif |
| |
| #if defined(CONFIG_HARD_SPI) |
| static int init_func_spi (void) |
| { |
| puts ("SPI: "); |
| spi_init (); |
| puts ("ready\n"); |
| return (0); |
| } |
| #endif |
| |
| /***********************************************************************/ |
| |
| #if defined(CONFIG_WATCHDOG) |
| static int init_func_watchdog_init (void) |
| { |
| puts (" Watchdog enabled\n"); |
| WATCHDOG_RESET (); |
| return (0); |
| } |
| # define INIT_FUNC_WATCHDOG_INIT init_func_watchdog_init, |
| |
| static int init_func_watchdog_reset (void) |
| { |
| WATCHDOG_RESET (); |
| return (0); |
| } |
| # define INIT_FUNC_WATCHDOG_RESET init_func_watchdog_reset, |
| #else |
| # define INIT_FUNC_WATCHDOG_INIT /* undef */ |
| # define INIT_FUNC_WATCHDOG_RESET /* undef */ |
| #endif /* CONFIG_WATCHDOG */ |
| |
| /************************************************************************ |
| * Initialization sequence * |
| ************************************************************************ |
| */ |
| |
| init_fnc_t *init_sequence[] = { |
| #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) |
| probecpu, |
| #endif |
| #if defined(CONFIG_BOARD_EARLY_INIT_F) |
| board_early_init_f, |
| #endif |
| #if !defined(CONFIG_8xx_CPUCLK_DEFAULT) |
| get_clocks, /* get CPU and bus clocks (etc.) */ |
| #if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \ |
| && !defined(CONFIG_TQM885D) |
| adjust_sdram_tbs_8xx, |
| #endif |
| init_timebase, |
| #endif |
| #ifdef CONFIG_SYS_ALLOC_DPRAM |
| #if !defined(CONFIG_CPM2) |
| dpram_init, |
| #endif |
| #endif |
| #if defined(CONFIG_BOARD_POSTCLK_INIT) |
| board_postclk_init, |
| #endif |
| env_init, |
| #if defined(CONFIG_8xx_CPUCLK_DEFAULT) |
| get_clocks_866, /* get CPU and bus clocks according to the environment variable */ |
| sdram_adjust_866, /* adjust sdram refresh rate according to the new clock */ |
| init_timebase, |
| #endif |
| init_baudrate, |
| serial_init, |
| console_init_f, |
| display_options, |
| #if defined(CONFIG_8260) |
| prt_8260_rsr, |
| prt_8260_clks, |
| #endif /* CONFIG_8260 */ |
| #if defined(CONFIG_MPC83xx) |
| prt_83xx_rsr, |
| #endif |
| checkcpu, |
| #if defined(CONFIG_MPC5xxx) |
| prt_mpc5xxx_clks, |
| #endif /* CONFIG_MPC5xxx */ |
| #if defined(CONFIG_MPC8220) |
| prt_mpc8220_clks, |
| #endif |
| checkboard, |
| INIT_FUNC_WATCHDOG_INIT |
| #if defined(CONFIG_MISC_INIT_F) |
| misc_init_f, |
| #endif |
| INIT_FUNC_WATCHDOG_RESET |
| #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C) |
| init_func_i2c, |
| #endif |
| #if defined(CONFIG_HARD_SPI) |
| init_func_spi, |
| #endif |
| #ifdef CONFIG_POST |
| post_init_f, |
| #endif |
| INIT_FUNC_WATCHDOG_RESET |
| init_func_ram, |
| #if defined(CONFIG_SYS_DRAM_TEST) |
| testdram, |
| #endif /* CONFIG_SYS_DRAM_TEST */ |
| INIT_FUNC_WATCHDOG_RESET |
| |
| NULL, /* Terminate this list */ |
| }; |
| |
| ulong get_effective_memsize(void) |
| { |
| #ifndef CONFIG_VERY_BIG_RAM |
| return gd->ram_size; |
| #else |
| /* limit stack to what we can reasonable map */ |
| return ((gd->ram_size > CONFIG_MAX_MEM_MAPPED) ? |
| CONFIG_MAX_MEM_MAPPED : gd->ram_size); |
| #endif |
| } |
| |
| /************************************************************************ |
| * |
| * This is the first part of the initialization sequence that is |
| * implemented in C, but still running from ROM. |
| * |
| * The main purpose is to provide a (serial) console interface as |
| * soon as possible (so we can see any error messages), and to |
| * initialize the RAM so that we can relocate the monitor code to |
| * RAM. |
| * |
| * Be aware of the restrictions: global data is read-only, BSS is not |
| * initialized, and stack space is limited to a few kB. |
| * |
| ************************************************************************ |
| */ |
| |
| #ifdef CONFIG_LOGBUFFER |
| unsigned long logbuffer_base(void) |
| { |
| return CONFIG_SYS_SDRAM_BASE + get_effective_memsize() - LOGBUFF_LEN; |
| } |
| #endif |
| |
| void board_init_f (ulong bootflag) |
| { |
| bd_t *bd; |
| ulong len, addr, addr_sp; |
| ulong *s; |
| gd_t *id; |
| init_fnc_t **init_fnc_ptr; |
| #ifdef CONFIG_PRAM |
| int i; |
| ulong reg; |
| uchar tmp[64]; /* long enough for environment variables */ |
| #endif |
| |
| /* Pointer is writable since we allocated a register for it */ |
| gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET); |
| /* compiler optimization barrier needed for GCC >= 3.4 */ |
| __asm__ __volatile__("": : :"memory"); |
| |
| #if !defined(CONFIG_CPM2) && !defined(CONFIG_MPC512X) && \ |
| !defined(CONFIG_MPC83xx) && !defined(CONFIG_MPC85xx) && \ |
| !defined(CONFIG_MPC86xx) |
| /* Clear initial global data */ |
| memset ((void *) gd, 0, sizeof (gd_t)); |
| #endif |
| |
| 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. |
| * |
| * Reserve memory at end of RAM for (top down in that order): |
| * - area that won't get touched by U-Boot and Linux (optional) |
| * - kernel log buffer |
| * - protected RAM |
| * - LCD framebuffer |
| * - monitor code |
| * - board info struct |
| */ |
| len = (ulong)&__bss_end__ - CONFIG_SYS_MONITOR_BASE; |
| |
| /* |
| * Subtract specified amount of memory to hide so that it won't |
| * get "touched" at all by U-Boot. By fixing up gd->ram_size |
| * the Linux kernel should now get passed the now "corrected" |
| * memory size and won't touch it either. This should work |
| * for arch/ppc and arch/powerpc. Only Linux board ports in |
| * arch/powerpc with bootwrapper support, that recalculate the |
| * memory size from the SDRAM controller setup will have to |
| * get fixed. |
| */ |
| gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE; |
| |
| addr = CONFIG_SYS_SDRAM_BASE + get_effective_memsize(); |
| |
| #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500)) |
| /* |
| * We need to make sure the location we intend to put secondary core |
| * boot code is reserved and not used by any part of u-boot |
| */ |
| if (addr > determine_mp_bootpg()) { |
| addr = determine_mp_bootpg(); |
| debug ("Reserving MP boot page to %08lx\n", addr); |
| } |
| #endif |
| |
| #ifdef CONFIG_LOGBUFFER |
| #ifndef CONFIG_ALT_LB_ADDR |
| /* reserve kernel log buffer */ |
| addr -= (LOGBUFF_RESERVE); |
| debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr); |
| #endif |
| #endif |
| |
| #ifdef CONFIG_PRAM |
| /* |
| * reserve protected RAM |
| */ |
| i = getenv_f("pram", (char *)tmp, sizeof (tmp)); |
| reg = (i > 0) ? simple_strtoul ((const char *)tmp, NULL, 10) : CONFIG_PRAM; |
| addr -= (reg << 10); /* size is in kB */ |
| debug ("Reserving %ldk for protected RAM at %08lx\n", reg, addr); |
| #endif /* CONFIG_PRAM */ |
| |
| /* round down to next 4 kB limit */ |
| addr &= ~(4096 - 1); |
| debug ("Top of RAM usable for U-Boot at: %08lx\n", addr); |
| |
| #ifdef CONFIG_LCD |
| #ifdef CONFIG_FB_ADDR |
| gd->fb_base = CONFIG_FB_ADDR; |
| #else |
| /* reserve memory for LCD display (always full pages) */ |
| addr = lcd_setmem (addr); |
| gd->fb_base = addr; |
| #endif /* CONFIG_FB_ADDR */ |
| #endif /* CONFIG_LCD */ |
| |
| #if defined(CONFIG_VIDEO) && defined(CONFIG_8xx) |
| /* reserve memory for video display (always full pages) */ |
| addr = video_setmem (addr); |
| gd->fb_base = addr; |
| #endif /* CONFIG_VIDEO */ |
| |
| /* |
| * reserve memory for U-Boot code, data & bss |
| * round down to next 4 kB limit |
| */ |
| addr -= len; |
| addr &= ~(4096 - 1); |
| #ifdef CONFIG_E500 |
| /* round down to next 64 kB limit so that IVPR stays aligned */ |
| addr &= ~(65536 - 1); |
| #endif |
| |
| 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; |
| memset(bd, 0, sizeof(bd_t)); |
| 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); |
| |
| /* |
| * 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 */ |
| |
| #ifdef CONFIG_SYS_SRAM_BASE |
| bd->bi_sramstart = CONFIG_SYS_SRAM_BASE; /* start of SRAM memory */ |
| bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE; /* size of SRAM memory */ |
| #endif |
| |
| #if defined(CONFIG_8xx) || defined(CONFIG_8260) || defined(CONFIG_5xx) || \ |
| defined(CONFIG_E500) || defined(CONFIG_MPC86xx) |
| bd->bi_immr_base = CONFIG_SYS_IMMR; /* base of IMMR register */ |
| #endif |
| #if defined(CONFIG_MPC5xxx) |
| bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */ |
| #endif |
| #if defined(CONFIG_MPC83xx) |
| bd->bi_immrbar = CONFIG_SYS_IMMR; |
| #endif |
| #if defined(CONFIG_MPC8220) |
| bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */ |
| bd->bi_inpfreq = gd->inp_clk; |
| bd->bi_pcifreq = gd->pci_clk; |
| bd->bi_vcofreq = gd->vco_clk; |
| bd->bi_pevfreq = gd->pev_clk; |
| bd->bi_flbfreq = gd->flb_clk; |
| |
| /* store bootparam to sram (backward compatible), here? */ |
| { |
| u32 *sram = (u32 *)CONFIG_SYS_SRAM_BASE; |
| *sram++ = gd->ram_size; |
| *sram++ = gd->bus_clk; |
| *sram++ = gd->inp_clk; |
| *sram++ = gd->cpu_clk; |
| *sram++ = gd->vco_clk; |
| *sram++ = gd->flb_clk; |
| *sram++ = 0xb8c3ba11; /* boot signature */ |
| } |
| #endif |
| |
| WATCHDOG_RESET (); |
| bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */ |
| bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */ |
| #if defined(CONFIG_CPM2) |
| bd->bi_cpmfreq = gd->cpm_clk; |
| bd->bi_brgfreq = gd->brg_clk; |
| bd->bi_sccfreq = gd->scc_clk; |
| bd->bi_vco = gd->vco_out; |
| #endif /* CONFIG_CPM2 */ |
| #if defined(CONFIG_MPC512X) |
| bd->bi_ipsfreq = gd->ips_clk; |
| #endif /* CONFIG_MPC512X */ |
| #if defined(CONFIG_MPC5xxx) |
| bd->bi_ipbfreq = gd->ipb_clk; |
| bd->bi_pcifreq = gd->pci_clk; |
| #endif /* CONFIG_MPC5xxx */ |
| bd->bi_baudrate = gd->baudrate; /* Console Baudrate */ |
| |
| #ifdef CONFIG_SYS_EXTBDINFO |
| strncpy ((char *)bd->bi_s_version, "1.2", sizeof (bd->bi_s_version)); |
| strncpy ((char *)bd->bi_r_version, U_BOOT_VERSION, sizeof (bd->bi_r_version)); |
| |
| bd->bi_procfreq = gd->cpu_clk; /* Processor Speed, In Hz */ |
| bd->bi_plb_busfreq = gd->bus_clk; |
| #if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \ |
| defined(CONFIG_440EP) || defined(CONFIG_440GR) || \ |
| defined(CONFIG_440EPX) || defined(CONFIG_440GRX) |
| bd->bi_pci_busfreq = get_PCI_freq (); |
| bd->bi_opbfreq = get_OPB_freq (); |
| #elif defined(CONFIG_XILINX_405) |
| bd->bi_pci_busfreq = get_PCI_freq (); |
| #endif |
| #endif |
| |
| debug ("New Stack Pointer is: %08lx\n", addr_sp); |
| |
| WATCHDOG_RESET (); |
| |
| #ifdef CONFIG_POST |
| post_bootmode_init(); |
| post_run (NULL, POST_ROM | post_bootmode_get(0)); |
| #endif |
| |
| WATCHDOG_RESET(); |
| |
| gd->relocaddr = addr; /* Record relocation address, useful for debug */ |
| |
| memcpy (id, (void *)gd, sizeof (gd_t)); |
| |
| 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) |
| { |
| char *s; |
| bd_t *bd; |
| ulong malloc_start; |
| |
| #ifndef CONFIG_SYS_NO_FLASH |
| ulong flash_size; |
| #endif |
| |
| gd = id; /* initialize RAM version of global data */ |
| bd = gd->bd; |
| |
| gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ |
| |
| /* The Malloc area is immediately below the monitor copy in DRAM */ |
| malloc_start = dest_addr - TOTAL_MALLOC_LEN; |
| |
| #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) |
| /* |
| * The gd->cpu pointer is set to an address in flash before relocation. |
| * We need to update it to point to the same CPU entry in RAM. |
| */ |
| gd->cpu += dest_addr - CONFIG_SYS_MONITOR_BASE; |
| #endif |
| |
| #ifdef CONFIG_SYS_EXTRA_ENV_RELOC |
| /* |
| * Some systems need to relocate the env_addr pointer early because the |
| * location it points to will get invalidated before env_relocate is |
| * called. One example is on systems that might use a L2 or L3 cache |
| * in SRAM mode and initialize that cache from SRAM mode back to being |
| * a cache in cpu_init_r. |
| */ |
| gd->env_addr += dest_addr - CONFIG_SYS_MONITOR_BASE; |
| #endif |
| |
| #ifdef CONFIG_SERIAL_MULTI |
| serial_initialize(); |
| #endif |
| |
| debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr); |
| |
| WATCHDOG_RESET (); |
| |
| /* |
| * Setup trap handlers |
| */ |
| trap_init (dest_addr); |
| |
| #ifdef CONFIG_ADDR_MAP |
| init_addr_map(); |
| #endif |
| |
| #if defined(CONFIG_BOARD_EARLY_INIT_R) |
| board_early_init_r (); |
| #endif |
| |
| monitor_flash_len = (ulong)&__init_end - dest_addr; |
| |
| WATCHDOG_RESET (); |
| |
| #ifdef CONFIG_LOGBUFFER |
| logbuff_init_ptrs (); |
| #endif |
| #ifdef CONFIG_POST |
| post_output_backlog (); |
| #endif |
| |
| WATCHDOG_RESET(); |
| |
| #if defined(CONFIG_SYS_DELAYED_ICACHE) |
| icache_enable (); /* it's time to enable the instruction cache */ |
| #endif |
| |
| #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500) |
| unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */ |
| #endif |
| |
| #if defined(CONFIG_PCI) && defined(CONFIG_SYS_EARLY_PCI_INIT) |
| /* |
| * Do early PCI configuration _before_ the flash gets initialised, |
| * because PCU ressources are crucial for flash access on some boards. |
| */ |
| pci_init (); |
| #endif |
| #if defined(CONFIG_WINBOND_83C553) |
| /* |
| * Initialise the ISA bridge |
| */ |
| initialise_w83c553f (); |
| #endif |
| |
| asm ("sync ; isync"); |
| |
| mem_malloc_init (malloc_start, TOTAL_MALLOC_LEN); |
| |
| #if !defined(CONFIG_SYS_NO_FLASH) |
| puts ("Flash: "); |
| |
| if (board_flash_wp_on()) { |
| printf("Uninitialized - Write Protect On\n"); |
| /* Since WP is on, we can't find real size. Set to 0 */ |
| flash_size = 0; |
| } else if ((flash_size = flash_init ()) > 0) { |
| # ifdef CONFIG_SYS_FLASH_CHECKSUM |
| print_size (flash_size, ""); |
| /* |
| * Compute and print flash CRC if flashchecksum is set to 'y' |
| * |
| * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX |
| */ |
| s = getenv ("flashchecksum"); |
| if (s && (*s == 'y')) { |
| printf (" CRC: %08X", |
| crc32 (0, (const unsigned char *) CONFIG_SYS_FLASH_BASE, flash_size) |
| ); |
| } |
| putc ('\n'); |
| # else /* !CONFIG_SYS_FLASH_CHECKSUM */ |
| print_size (flash_size, "\n"); |
| # endif /* CONFIG_SYS_FLASH_CHECKSUM */ |
| } else { |
| puts (failed); |
| hang (); |
| } |
| |
| bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; /* update start of FLASH memory */ |
| bd->bi_flashsize = flash_size; /* size of FLASH memory (final value) */ |
| |
| #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE) |
| /* Make a update of the Memctrl. */ |
| update_flash_size (flash_size); |
| #endif |
| |
| |
| # if defined(CONFIG_OXC) || defined(CONFIG_RMU) |
| /* flash mapped at end of memory map */ |
| bd->bi_flashoffset = CONFIG_SYS_TEXT_BASE + flash_size; |
| # elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE |
| bd->bi_flashoffset = monitor_flash_len; /* reserved area for startup monitor */ |
| # endif |
| #endif /* !CONFIG_SYS_NO_FLASH */ |
| |
| WATCHDOG_RESET (); |
| |
| /* initialize higher level parts of CPU like time base and timers */ |
| cpu_init_r (); |
| |
| WATCHDOG_RESET (); |
| |
| #ifdef CONFIG_SPI |
| # if !defined(CONFIG_ENV_IS_IN_EEPROM) |
| spi_init_f (); |
| # endif |
| spi_init_r (); |
| #endif |
| |
| #if defined(CONFIG_CMD_NAND) |
| WATCHDOG_RESET (); |
| puts ("NAND: "); |
| nand_init(); /* go init the NAND */ |
| #endif |
| |
| #ifdef CONFIG_GENERIC_MMC |
| /* |
| * MMC initialization is called before relocating env. |
| * Thus It is required that operations like pin multiplexer |
| * be put in board_init. |
| */ |
| WATCHDOG_RESET (); |
| puts ("MMC: "); |
| mmc_initialize (bd); |
| #endif |
| |
| /* relocate environment function pointers etc. */ |
| env_relocate (); |
| |
| /* |
| * after non-volatile devices & environment is setup and cpu code have |
| * another round to deal with any initialization that might require |
| * full access to the environment or loading of some image (firmware) |
| * from a non-volatile device |
| */ |
| cpu_secondary_init_r(); |
| |
| /* |
| * Fill in missing fields of bd_info. |
| * We do this here, where we have "normal" access to the |
| * environment; we used to do this still running from ROM, |
| * where had to use getenv_f(), which can be pretty slow when |
| * the environment is in EEPROM. |
| */ |
| |
| #if defined(CONFIG_SYS_EXTBDINFO) |
| #if defined(CONFIG_405GP) || defined(CONFIG_405EP) |
| #if defined(CONFIG_I2CFAST) |
| /* |
| * set bi_iic_fast for linux taking environment variable |
| * "i2cfast" into account |
| */ |
| { |
| char *s = getenv ("i2cfast"); |
| if (s && ((*s == 'y') || (*s == 'Y'))) { |
| bd->bi_iic_fast[0] = 1; |
| bd->bi_iic_fast[1] = 1; |
| } |
| } |
| #endif /* CONFIG_I2CFAST */ |
| #endif /* CONFIG_405GP, CONFIG_405EP */ |
| #endif /* CONFIG_SYS_EXTBDINFO */ |
| |
| #if defined(CONFIG_SC3) |
| sc3_read_eeprom(); |
| #endif |
| |
| #if defined (CONFIG_ID_EEPROM) || defined (CONFIG_SYS_I2C_MAC_OFFSET) |
| mac_read_from_eeprom(); |
| #endif |
| |
| #ifdef CONFIG_HERMES |
| if ((gd->board_type >> 16) == 2) |
| bd->bi_ethspeed = gd->board_type & 0xFFFF; |
| else |
| bd->bi_ethspeed = 0xFFFF; |
| #endif |
| |
| #ifdef CONFIG_CMD_NET |
| /* kept around for legacy kernels only ... ignore the next section */ |
| eth_getenv_enetaddr("ethaddr", bd->bi_enetaddr); |
| #ifdef CONFIG_HAS_ETH1 |
| eth_getenv_enetaddr("eth1addr", bd->bi_enet1addr); |
| #endif |
| #ifdef CONFIG_HAS_ETH2 |
| eth_getenv_enetaddr("eth2addr", bd->bi_enet2addr); |
| #endif |
| #ifdef CONFIG_HAS_ETH3 |
| eth_getenv_enetaddr("eth3addr", bd->bi_enet3addr); |
| #endif |
| #ifdef CONFIG_HAS_ETH4 |
| eth_getenv_enetaddr("eth4addr", bd->bi_enet4addr); |
| #endif |
| #ifdef CONFIG_HAS_ETH5 |
| eth_getenv_enetaddr("eth5addr", bd->bi_enet5addr); |
| #endif |
| #endif /* CONFIG_CMD_NET */ |
| |
| /* IP Address */ |
| bd->bi_ip_addr = getenv_IPaddr ("ipaddr"); |
| |
| WATCHDOG_RESET (); |
| |
| #if defined(CONFIG_PCI) && !defined(CONFIG_SYS_EARLY_PCI_INIT) |
| /* |
| * Do pci configuration |
| */ |
| pci_init (); |
| #endif |
| |
| /** leave this here (after malloc(), environment and PCI are working) **/ |
| /* Initialize stdio devices */ |
| stdio_init (); |
| |
| /* Initialize the jump table for applications */ |
| jumptable_init (); |
| |
| #if defined(CONFIG_API) |
| /* Initialize API */ |
| api_init (); |
| #endif |
| |
| /* Initialize the console (after the relocation and devices init) */ |
| console_init_r (); |
| |
| #if defined(CONFIG_MISC_INIT_R) |
| /* miscellaneous platform dependent initialisations */ |
| misc_init_r (); |
| #endif |
| |
| #ifdef CONFIG_HERMES |
| if (bd->bi_ethspeed != 0xFFFF) |
| hermes_start_lxt980 ((int) bd->bi_ethspeed); |
| #endif |
| |
| #if defined(CONFIG_CMD_KGDB) |
| WATCHDOG_RESET (); |
| puts ("KGDB: "); |
| kgdb_init (); |
| #endif |
| |
| debug ("U-Boot relocated to %08lx\n", dest_addr); |
| |
| /* |
| * Enable Interrupts |
| */ |
| interrupt_init (); |
| |
| #if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT) |
| status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING); |
| #endif |
| |
| udelay (20); |
| |
| /* 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 |
| |
| WATCHDOG_RESET (); |
| |
| #if defined(CONFIG_DTT) /* Digital Thermometers and Thermostats */ |
| dtt_init (); |
| #endif |
| #if defined(CONFIG_CMD_SCSI) |
| WATCHDOG_RESET (); |
| puts ("SCSI: "); |
| scsi_init (); |
| #endif |
| |
| #if defined(CONFIG_CMD_DOC) |
| WATCHDOG_RESET (); |
| puts ("DOC: "); |
| doc_init (); |
| #endif |
| |
| #ifdef CONFIG_BITBANGMII |
| bb_miiphy_init(); |
| #endif |
| #if defined(CONFIG_CMD_NET) |
| #if defined(CONFIG_NET_MULTI) |
| WATCHDOG_RESET (); |
| puts ("Net: "); |
| #endif |
| eth_initialize (bd); |
| #endif |
| |
| #if defined(CONFIG_CMD_NET) && defined(CONFIG_RESET_PHY_R) |
| WATCHDOG_RESET (); |
| debug ("Reset Ethernet PHY\n"); |
| reset_phy (); |
| #endif |
| |
| #ifdef CONFIG_POST |
| post_run (NULL, POST_RAM | post_bootmode_get(0)); |
| #endif |
| |
| #if defined(CONFIG_CMD_PCMCIA) \ |
| && !defined(CONFIG_CMD_IDE) |
| WATCHDOG_RESET (); |
| puts ("PCMCIA:"); |
| pcmcia_init (); |
| #endif |
| |
| #if defined(CONFIG_CMD_IDE) |
| WATCHDOG_RESET (); |
| # ifdef CONFIG_IDE_8xx_PCCARD |
| puts ("PCMCIA:"); |
| # else |
| puts ("IDE: "); |
| #endif |
| #if defined(CONFIG_START_IDE) |
| if (board_start_ide()) |
| ide_init (); |
| #else |
| ide_init (); |
| #endif |
| #endif |
| |
| #ifdef CONFIG_LAST_STAGE_INIT |
| WATCHDOG_RESET (); |
| /* |
| * Some parts can be only initialized if all others (like |
| * Interrupts) are up and running (i.e. the PC-style ISA |
| * keyboard). |
| */ |
| last_stage_init (); |
| #endif |
| |
| #if defined(CONFIG_CMD_BEDBUG) |
| WATCHDOG_RESET (); |
| bedbug_init (); |
| #endif |
| |
| #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER) |
| /* |
| * Export available size of memory for Linux, |
| * taking into account the protected RAM at top of memory |
| */ |
| { |
| ulong pram; |
| uchar memsz[32]; |
| #ifdef CONFIG_PRAM |
| char *s; |
| |
| if ((s = getenv ("pram")) != NULL) { |
| pram = simple_strtoul (s, NULL, 10); |
| } else { |
| pram = CONFIG_PRAM; |
| } |
| #else |
| pram=0; |
| #endif |
| #ifdef CONFIG_LOGBUFFER |
| #ifndef CONFIG_ALT_LB_ADDR |
| /* Also take the logbuffer into account (pram is in kB) */ |
| pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024; |
| #endif |
| #endif |
| sprintf ((char *)memsz, "%ldk", (bd->bi_memsize / 1024) - pram); |
| setenv ("mem", (char *)memsz); |
| } |
| #endif |
| |
| #ifdef CONFIG_PS2KBD |
| puts ("PS/2: "); |
| kbd_init(); |
| #endif |
| |
| #ifdef CONFIG_MODEM_SUPPORT |
| { |
| extern int do_mdm_init; |
| do_mdm_init = gd->do_mdm_init; |
| } |
| #endif |
| |
| /* Initialization complete - start the monitor */ |
| |
| /* main_loop() can return to retry autoboot, if so just run it again. */ |
| for (;;) { |
| WATCHDOG_RESET (); |
| main_loop (); |
| } |
| |
| /* NOTREACHED - no way out of command loop except booting */ |
| } |
| |
| void hang (void) |
| { |
| puts ("### ERROR ### Please RESET the board ###\n"); |
| show_boot_progress(-30); |
| for (;;); |
| } |
| |
| |
| #if 0 /* We could use plain global data, but the resulting code is bigger */ |
| /* |
| * Pointer to initial global data area |
| * |
| * Here we initialize it. |
| */ |
| #undef XTRN_DECLARE_GLOBAL_DATA_PTR |
| #define XTRN_DECLARE_GLOBAL_DATA_PTR /* empty = allocate here */ |
| DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET); |
| #endif /* 0 */ |
| |
| /************************************************************************/ |