| /* |
| * U-boot - board.c First C file to be called contains init routines |
| * |
| * Copyright (c) 2005-2008 Analog Devices Inc. |
| * |
| * (C) Copyright 2000-2004 |
| * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
| * |
| * Licensed under the GPL-2 or later. |
| */ |
| |
| #include <common.h> |
| #include <command.h> |
| #include <stdio_dev.h> |
| #include <serial.h> |
| #include <environment.h> |
| #include <malloc.h> |
| #include <mmc.h> |
| #include <net.h> |
| #include <status_led.h> |
| #include <version.h> |
| |
| #include <asm/cplb.h> |
| #include <asm/mach-common/bits/mpu.h> |
| #include <kgdb.h> |
| |
| #ifdef CONFIG_CMD_NAND |
| #include <nand.h> /* cannot even include nand.h if it isnt configured */ |
| #endif |
| |
| #ifdef CONFIG_BITBANGMII |
| #include <miiphy.h> |
| #endif |
| |
| #if defined(CONFIG_POST) |
| #include <post.h> |
| int post_flag; |
| #endif |
| |
| DECLARE_GLOBAL_DATA_PTR; |
| |
| __attribute__((always_inline)) |
| static inline void serial_early_puts(const char *s) |
| { |
| #ifdef CONFIG_DEBUG_EARLY_SERIAL |
| serial_puts("Early: "); |
| serial_puts(s); |
| #endif |
| } |
| |
| static int display_banner(void) |
| { |
| display_options(); |
| printf("CPU: ADSP %s " |
| "(Detected Rev: 0.%d) " |
| "(%s boot)\n", |
| gd->bd->bi_cpu, |
| bfin_revid(), |
| get_bfin_boot_mode(CONFIG_BFIN_BOOT_MODE)); |
| return 0; |
| } |
| |
| static int init_baudrate(void) |
| { |
| gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE); |
| return 0; |
| } |
| |
| static void display_global_data(void) |
| { |
| bd_t *bd; |
| |
| #ifndef CONFIG_DEBUG_EARLY_SERIAL |
| return; |
| #endif |
| |
| bd = gd->bd; |
| printf(" gd: %p\n", gd); |
| printf(" |-flags: %lx\n", gd->flags); |
| printf(" |-board_type: %lx\n", gd->arch.board_type); |
| printf(" |-baudrate: %u\n", gd->baudrate); |
| printf(" |-have_console: %lx\n", gd->have_console); |
| printf(" |-ram_size: %lx\n", gd->ram_size); |
| printf(" |-env_addr: %lx\n", gd->env_addr); |
| printf(" |-env_valid: %lx\n", gd->env_valid); |
| printf(" |-jt(%p): %p\n", gd->jt, *(gd->jt)); |
| printf(" \\-bd: %p\n", gd->bd); |
| printf(" |-bi_baudrate: %x\n", bd->bi_baudrate); |
| printf(" |-bi_boot_params: %lx\n", bd->bi_boot_params); |
| printf(" |-bi_memstart: %lx\n", bd->bi_memstart); |
| printf(" |-bi_memsize: %lx\n", bd->bi_memsize); |
| printf(" |-bi_flashstart: %lx\n", bd->bi_flashstart); |
| printf(" |-bi_flashsize: %lx\n", bd->bi_flashsize); |
| printf(" \\-bi_flashoffset: %lx\n", bd->bi_flashoffset); |
| } |
| |
| #define CPLB_PAGE_SIZE (4 * 1024 * 1024) |
| #define CPLB_PAGE_MASK (~(CPLB_PAGE_SIZE - 1)) |
| #if defined(__ADSPBF60x__) |
| #define CPLB_EX_PAGE_SIZE (16 * 1024 * 1024) |
| #define CPLB_EX_PAGE_MASK (~(CPLB_EX_PAGE_SIZE - 1)) |
| #else |
| #define CPLB_EX_PAGE_SIZE CPLB_PAGE_SIZE |
| #define CPLB_EX_PAGE_MASK CPLB_PAGE_MASK |
| #endif |
| void init_cplbtables(void) |
| { |
| volatile uint32_t *ICPLB_ADDR, *ICPLB_DATA; |
| volatile uint32_t *DCPLB_ADDR, *DCPLB_DATA; |
| uint32_t extern_memory; |
| size_t i; |
| |
| void icplb_add(uint32_t addr, uint32_t data) |
| { |
| *(ICPLB_ADDR + i) = addr; |
| *(ICPLB_DATA + i) = data; |
| } |
| void dcplb_add(uint32_t addr, uint32_t data) |
| { |
| *(DCPLB_ADDR + i) = addr; |
| *(DCPLB_DATA + i) = data; |
| } |
| |
| /* populate a few common entries ... we'll let |
| * the memory map and cplb exception handler do |
| * the rest of the work. |
| */ |
| i = 0; |
| ICPLB_ADDR = (uint32_t *)ICPLB_ADDR0; |
| ICPLB_DATA = (uint32_t *)ICPLB_DATA0; |
| DCPLB_ADDR = (uint32_t *)DCPLB_ADDR0; |
| DCPLB_DATA = (uint32_t *)DCPLB_DATA0; |
| |
| icplb_add(0xFFA00000, L1_IMEMORY); |
| dcplb_add(0xFF800000, L1_DMEMORY); |
| ++i; |
| #if defined(__ADSPBF60x__) |
| icplb_add(0x0, 0x0); |
| dcplb_add(CONFIG_SYS_FLASH_BASE, SDRAM_EBIU); |
| ++i; |
| #endif |
| |
| if (CONFIG_MEM_SIZE) { |
| uint32_t mbase = CONFIG_SYS_MONITOR_BASE; |
| uint32_t mend = mbase + CONFIG_SYS_MONITOR_LEN; |
| mbase &= CPLB_PAGE_MASK; |
| mend &= CPLB_PAGE_MASK; |
| |
| icplb_add(mbase, SDRAM_IKERNEL); |
| dcplb_add(mbase, SDRAM_DKERNEL); |
| ++i; |
| |
| /* |
| * If the monitor crosses a 4 meg boundary, we'll need |
| * to lock two entries for it. We assume it doesn't |
| * cross two 4 meg boundaries ... |
| */ |
| if (mbase != mend) { |
| icplb_add(mend, SDRAM_IKERNEL); |
| dcplb_add(mend, SDRAM_DKERNEL); |
| ++i; |
| } |
| } |
| |
| #ifndef __ADSPBF60x__ |
| icplb_add(0x20000000, SDRAM_INON_CHBL); |
| dcplb_add(0x20000000, SDRAM_EBIU); |
| ++i; |
| #endif |
| |
| /* Add entries for the rest of external RAM up to the bootrom */ |
| extern_memory = 0; |
| |
| #ifdef CONFIG_DEBUG_NULL_PTR |
| icplb_add(extern_memory, (SDRAM_IKERNEL & ~PAGE_SIZE_MASK) | PAGE_SIZE_1KB); |
| dcplb_add(extern_memory, (SDRAM_DKERNEL & ~PAGE_SIZE_MASK) | PAGE_SIZE_1KB); |
| ++i; |
| icplb_add(extern_memory, SDRAM_IKERNEL); |
| dcplb_add(extern_memory, SDRAM_DKERNEL); |
| extern_memory += CPLB_PAGE_SIZE; |
| ++i; |
| #endif |
| |
| while (i < 16 && extern_memory < |
| (CONFIG_SYS_MONITOR_BASE & CPLB_EX_PAGE_MASK)) { |
| icplb_add(extern_memory, SDRAM_IGENERIC); |
| dcplb_add(extern_memory, SDRAM_DGENERIC); |
| extern_memory += CPLB_EX_PAGE_SIZE; |
| ++i; |
| } |
| while (i < 16) { |
| icplb_add(0, 0); |
| dcplb_add(0, 0); |
| ++i; |
| } |
| } |
| |
| static int global_board_data_init(void) |
| { |
| #ifndef CONFIG_SYS_GBL_DATA_ADDR |
| # define CONFIG_SYS_GBL_DATA_ADDR 0 |
| #endif |
| #ifndef CONFIG_SYS_BD_INFO_ADDR |
| # define CONFIG_SYS_BD_INFO_ADDR 0 |
| #endif |
| |
| bd_t *bd; |
| |
| if (CONFIG_SYS_GBL_DATA_ADDR) { |
| gd = (gd_t *) (CONFIG_SYS_GBL_DATA_ADDR); |
| memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE); |
| } else { |
| static gd_t _bfin_gd; |
| gd = &_bfin_gd; |
| } |
| |
| if (CONFIG_SYS_BD_INFO_ADDR) { |
| bd = (bd_t *) (CONFIG_SYS_BD_INFO_ADDR); |
| memset(bd, 0, GENERATED_BD_INFO_SIZE); |
| } else { |
| static bd_t _bfin_bd; |
| bd = &_bfin_bd; |
| } |
| gd->bd = bd; |
| |
| bd->bi_r_version = version_string; |
| bd->bi_cpu = __stringify(CONFIG_BFIN_CPU); |
| bd->bi_board_name = BFIN_BOARD_NAME; |
| bd->bi_vco = get_vco(); |
| bd->bi_cclk = get_cclk(); |
| bd->bi_sclk = get_sclk(); |
| bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; |
| bd->bi_memsize = CONFIG_SYS_MAX_RAM_SIZE; |
| |
| return 0; |
| } |
| |
| /* |
| * 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". |
| */ |
| |
| extern int watchdog_init(void); |
| extern int exception_init(void); |
| extern int irq_init(void); |
| extern int timer_init(void); |
| |
| void board_init_f(ulong bootflag) |
| { |
| char buf[32]; |
| |
| #ifdef CONFIG_BOARD_EARLY_INIT_F |
| serial_early_puts("Board early init flash\n"); |
| board_early_init_f(); |
| #endif |
| |
| serial_early_puts("Init CPLB tables\n"); |
| init_cplbtables(); |
| |
| serial_early_puts("Exceptions setup\n"); |
| exception_init(); |
| |
| #ifndef CONFIG_ICACHE_OFF |
| serial_early_puts("Turn on ICACHE\n"); |
| icache_enable(); |
| #endif |
| #ifndef CONFIG_DCACHE_OFF |
| serial_early_puts("Turn on DCACHE\n"); |
| dcache_enable(); |
| #endif |
| |
| #ifdef CONFIG_WATCHDOG |
| serial_early_puts("Setting up external watchdog\n"); |
| watchdog_init(); |
| #endif |
| |
| #ifdef DEBUG |
| if (GENERATED_GBL_DATA_SIZE < sizeof(*gd)) |
| hang(); |
| #endif |
| serial_early_puts("Init global data\n"); |
| |
| global_board_data_init(); |
| |
| /* Initialize */ |
| serial_early_puts("IRQ init\n"); |
| irq_init(); |
| serial_early_puts("Environment init\n"); |
| env_init(); |
| serial_early_puts("Baudrate init\n"); |
| init_baudrate(); |
| serial_early_puts("Serial init\n"); |
| serial_init(); |
| serial_initialize(); |
| serial_early_puts("Console init flash\n"); |
| console_init_f(); |
| serial_early_puts("End of early debugging\n"); |
| display_banner(); |
| |
| checkboard(); |
| timer_init(); |
| |
| printf("Clock: VCO: %s MHz, ", strmhz(buf, get_vco())); |
| printf("Core: %s MHz, ", strmhz(buf, get_cclk())); |
| #if defined(__ADSPBF60x__) |
| printf("System0: %s MHz, ", strmhz(buf, get_sclk0())); |
| printf("System1: %s MHz, ", strmhz(buf, get_sclk1())); |
| printf("Dclk: %s MHz\n", strmhz(buf, get_dclk())); |
| #else |
| printf("System: %s MHz\n", strmhz(buf, get_sclk())); |
| #endif |
| |
| if (CONFIG_MEM_SIZE) { |
| printf("RAM: "); |
| print_size(gd->bd->bi_memsize, "\n"); |
| } |
| |
| #if defined(CONFIG_POST) |
| post_init_f(); |
| post_bootmode_init(); |
| post_run(NULL, POST_ROM | post_bootmode_get(0)); |
| #endif |
| |
| board_init_r((gd_t *) gd, 0x20000010); |
| } |
| |
| static void board_net_init_r(bd_t *bd) |
| { |
| #ifdef CONFIG_BITBANGMII |
| bb_miiphy_init(); |
| #endif |
| #ifdef CONFIG_CMD_NET |
| printf("Net: "); |
| eth_initialize(bd); |
| #endif |
| } |
| |
| void board_init_r(gd_t * id, ulong dest_addr) |
| { |
| bd_t *bd; |
| gd = id; |
| gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ |
| bd = gd->bd; |
| |
| #if defined(CONFIG_POST) |
| post_output_backlog(); |
| #endif |
| |
| /* initialize malloc() area */ |
| mem_malloc_init(CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN); |
| |
| #if !defined(CONFIG_SYS_NO_FLASH) |
| /* Initialize the flash and protect u-boot by default */ |
| extern flash_info_t flash_info[]; |
| puts("Flash: "); |
| ulong size = flash_init(); |
| print_size(size, "\n"); |
| flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_FLASH_BASE, |
| CONFIG_SYS_FLASH_BASE + CONFIG_SYS_MONITOR_LEN - 1, |
| &flash_info[0]); |
| bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; |
| bd->bi_flashsize = size; |
| bd->bi_flashoffset = 0; |
| #else |
| bd->bi_flashstart = 0; |
| bd->bi_flashsize = 0; |
| bd->bi_flashoffset = 0; |
| #endif |
| |
| #ifdef CONFIG_CMD_NAND |
| puts("NAND: "); |
| nand_init(); /* go init the NAND */ |
| #endif |
| |
| #ifdef CONFIG_GENERIC_MMC |
| puts("MMC: "); |
| mmc_initialize(bd); |
| #endif |
| |
| /* relocate environment function pointers etc. */ |
| env_relocate(); |
| |
| /* Initialize stdio devices */ |
| stdio_init(); |
| jumptable_init(); |
| |
| /* Initialize the console (after the relocation and devices init) */ |
| console_init_r(); |
| |
| #ifdef CONFIG_CMD_KGDB |
| puts("KGDB: "); |
| kgdb_init(); |
| #endif |
| |
| #ifdef CONFIG_STATUS_LED |
| status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING); |
| status_led_set(STATUS_LED_CRASH, STATUS_LED_OFF); |
| #endif |
| |
| /* Initialize from environment */ |
| load_addr = getenv_ulong("loadaddr", 16, load_addr); |
| |
| #if defined(CONFIG_MISC_INIT_R) |
| /* miscellaneous platform dependent initialisations */ |
| misc_init_r(); |
| #endif |
| |
| board_net_init_r(bd); |
| |
| display_global_data(); |
| |
| #if defined(CONFIG_POST) |
| if (post_flag) |
| post_run(NULL, POST_RAM | post_bootmode_get(0)); |
| #endif |
| |
| if (CONFIG_MEM_SIZE && bfin_os_log_check()) { |
| puts("\nLog buffer from operating system:\n"); |
| bfin_os_log_dump(); |
| puts("\n"); |
| } |
| |
| /* main_loop() can return to retry autoboot, if so just run it again. */ |
| for (;;) |
| main_loop(); |
| } |