/* * U-boot - board.c First C file to be called contains init routines * * Copyright (c) 2005-2007 Analog Devices Inc. * * (C) Copyright 2000-2004 * 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., 51 Franklin St, Fifth Floor, Boston, * MA 02110-1301 USA */ #include <common.h> #include <command.h> #include <malloc.h> #include <devices.h> #include <version.h> #include <net.h> #include <environment.h> #include <i2c.h> #include "blackfin_board.h" #include <asm/cplb.h> #include "../drivers/smc91111.h" #if defined(CONFIG_BF537)&&defined(CONFIG_POST) #include <post.h> int post_flag; #endif #ifndef CFG_NO_FLASH extern flash_info_t flash_info[]; #endif static inline u_long get_vco(void) { u_long msel; u_long vco; msel = (*pPLL_CTL >> 9) & 0x3F; if (0 == msel) msel = 64; vco = CONFIG_CLKIN_HZ; vco >>= (1 & *pPLL_CTL); /* DF bit */ vco = msel * vco; return vco; } /*Get the Core clock*/ u_long get_cclk(void) { u_long csel, ssel; if (*pPLL_STAT & 0x1) return CONFIG_CLKIN_HZ; ssel = *pPLL_DIV; csel = ((ssel >> 4) & 0x03); ssel &= 0xf; if (ssel && ssel < (1 << csel)) /* SCLK > CCLK */ return get_vco() / ssel; return get_vco() >> csel; } /* Get the System clock */ u_long get_sclk(void) { u_long ssel; if (*pPLL_STAT & 0x1) return CONFIG_CLKIN_HZ; ssel = (*pPLL_DIV & 0xf); return get_vco() / ssel; } static void mem_malloc_init(void) { mem_malloc_start = CFG_MALLOC_BASE; mem_malloc_end = (CFG_MALLOC_BASE + CFG_MALLOC_LEN); mem_malloc_brk = mem_malloc_start; memset((void *)mem_malloc_start, 0, mem_malloc_end - mem_malloc_start); } void *sbrk(ptrdiff_t increment) { ulong old = mem_malloc_brk; ulong new = old + increment; if ((new < mem_malloc_start) || (new > mem_malloc_end)) { return (NULL); } mem_malloc_brk = new; return ((void *)old); } static int display_banner(void) { sprintf(version_string, VERSION_STRING_FORMAT, VERSION_STRING); printf("%s\n", version_string); return (0); } static void display_flash_config(ulong size) { puts("FLASH: "); print_size(size, "\n"); return; } static int init_baudrate(void) { DECLARE_GLOBAL_DATA_PTR; char tmp[64]; int i = getenv_r("baudrate", tmp, sizeof(tmp)); gd->bd->bi_baudrate = gd->baudrate = (i > 0) ? (int)simple_strtoul(tmp, NULL, 10) : CONFIG_BAUDRATE; return (0); } #ifdef DEBUG static void display_global_data(void) { DECLARE_GLOBAL_DATA_PTR; bd_t *bd; bd = gd->bd; printf("--flags:%x\n", gd->flags); printf("--board_type:%x\n", gd->board_type); printf("--baudrate:%x\n", gd->baudrate); printf("--have_console:%x\n", gd->have_console); printf("--ram_size:%x\n", gd->ram_size); printf("--reloc_off:%x\n", gd->reloc_off); printf("--env_addr:%x\n", gd->env_addr); printf("--env_valid:%x\n", gd->env_valid); printf("--bd:%x %x\n", gd->bd, bd); printf("---bi_baudrate:%x\n", bd->bi_baudrate); printf("---bi_ip_addr:%x\n", bd->bi_ip_addr); printf("---bi_enetaddr:%x %x %x %x %x %x\n", bd->bi_enetaddr[0], bd->bi_enetaddr[1], bd->bi_enetaddr[2], bd->bi_enetaddr[3], bd->bi_enetaddr[4], bd->bi_enetaddr[5]); printf("---bi_arch_number:%x\n", bd->bi_arch_number); printf("---bi_boot_params:%x\n", bd->bi_boot_params); printf("---bi_memstart:%x\n", bd->bi_memstart); printf("---bi_memsize:%x\n", bd->bi_memsize); printf("---bi_flashstart:%x\n", bd->bi_flashstart); printf("---bi_flashsize:%x\n", bd->bi_flashsize); printf("---bi_flashoffset:%x\n", bd->bi_flashoffset); printf("--jt:%x *:%x\n", gd->jt, *(gd->jt)); } #endif /* we cover everything with 4 meg pages, and need an extra for L1 */ unsigned int icplb_table[page_descriptor_table_size][2]; unsigned int dcplb_table[page_descriptor_table_size][2]; void init_cplbtables(void) { int i, j; j = 0; icplb_table[j][0] = 0xFFA00000; icplb_table[j][1] = L1_IMEMORY; j++; for (i = 0; i < CONFIG_MEM_SIZE / 4; i++) { icplb_table[j][0] = (i * 4 * 1024 * 1024); if (i * 4 * 1024 * 1024 <= CFG_MONITOR_BASE && (i + 1) * 4 * 1024 * 1024 >= CFG_MONITOR_BASE) { icplb_table[j][1] = SDRAM_IKERNEL; } else { icplb_table[j][1] = SDRAM_IGENERIC; } j++; } #if defined(CONFIG_BF561) /* MAC space */ icplb_table[j][0] = 0x2C000000; icplb_table[j][1] = SDRAM_INON_CHBL; j++; /* Async Memory space */ for (i = 0; i < 3; i++) { icplb_table[j][0] = 0x20000000 + i * 4 * 1024 * 1024; icplb_table[j][1] = SDRAM_INON_CHBL; j++; } #else icplb_table[j][0] = 0x20000000; icplb_table[j][1] = SDRAM_INON_CHBL; #endif j = 0; dcplb_table[j][0] = 0xFF800000; dcplb_table[j][1] = L1_DMEMORY; j++; for (i = 0; i < CONFIG_MEM_SIZE / 4; i++) { dcplb_table[j][0] = (i * 4 * 1024 * 1024); if (i * 4 * 1024 * 1024 <= CFG_MONITOR_BASE && (i + 1) * 4 * 1024 * 1024 >= CFG_MONITOR_BASE) { dcplb_table[j][1] = SDRAM_DKERNEL; } else { dcplb_table[j][1] = SDRAM_DGENERIC; } j++; } #if defined(CONFIG_BF561) /* MAC space */ dcplb_table[j][0] = 0x2C000000; dcplb_table[j][1] = SDRAM_EBIU; j++; /* Flash space */ for (i = 0; i < 3; i++) { dcplb_table[j][0] = 0x20000000 + i * 4 * 1024 * 1024; dcplb_table[j][1] = SDRAM_EBIU; j++; } #else dcplb_table[j][0] = 0x20000000; dcplb_table[j][1] = SDRAM_EBIU; #endif } /* * 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". */ void board_init_f(ulong bootflag) { DECLARE_GLOBAL_DATA_PTR; ulong addr; bd_t *bd; int i; init_cplbtables(); gd = (gd_t *) (CFG_GBL_DATA_ADDR); memset((void *)gd, 0, sizeof(gd_t)); /* Board data initialization */ addr = (CFG_GBL_DATA_ADDR + sizeof(gd_t)); /* Align to 4 byte boundary */ addr &= ~(4 - 1); bd = (bd_t *) addr; gd->bd = bd; memset((void *)bd, 0, sizeof(bd_t)); /* Initialize */ init_IRQ(); env_init(); /* initialize environment */ init_baudrate(); /* initialze baudrate settings */ serial_init(); /* serial communications setup */ console_init_f(); #ifdef CONFIG_ICACHE_ON icache_enable(); #endif #ifdef CONFIG_DCACHE_ON dcache_enable(); #endif display_banner(); /* say that we are here */ for (i = 0; i < page_descriptor_table_size; i++) { debug ("data (%02i)= 0x%08x : 0x%08x intr = 0x%08x : 0x%08x\n", i, dcplb_table[i][0], dcplb_table[i][1], icplb_table[i][0], icplb_table[i][1]); } checkboard(); #if defined(CONFIG_RTC_BF533) && defined(CONFIG_CMD_DATE) rtc_init(); #endif timer_init(); printf("Clock: VCO: %lu MHz, Core: %lu MHz, System: %lu MHz\n", get_vco() / 1000000, get_cclk() / 1000000, get_sclk() / 1000000); printf("SDRAM: "); print_size(initdram(0), "\n"); #if defined(CONFIG_BF537)&&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); } #if defined(CONFIG_SOFT_I2C) || defined(CONFIG_HARD_I2C) static int init_func_i2c(void) { puts("I2C: "); i2c_init(CFG_I2C_SPEED, CFG_I2C_SLAVE); puts("ready\n"); return (0); } #endif void board_init_r(gd_t * id, ulong dest_addr) { DECLARE_GLOBAL_DATA_PTR; ulong size; extern void malloc_bin_reloc(void); char *s, *e; bd_t *bd; int i; gd = id; gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ bd = gd->bd; #if defined(CONFIG_BF537) && defined(CONFIG_POST) post_output_backlog(); post_reloc(); #endif #if (CONFIG_STAMP || CONFIG_BF537 || CONFIG_EZKIT561) && !defined(CFG_NO_FLASH) /* There are some other pointer constants we must deal with */ /* configure available FLASH banks */ size = flash_init(); display_flash_config(size); flash_protect(FLAG_PROTECT_SET, CFG_FLASH_BASE, CFG_FLASH_BASE + 0x1ffff, &flash_info[0]); bd->bi_flashstart = CFG_FLASH_BASE; bd->bi_flashsize = size; bd->bi_flashoffset = 0; #else bd->bi_flashstart = 0; bd->bi_flashsize = 0; bd->bi_flashoffset = 0; #endif /* initialize malloc() area */ mem_malloc_init(); malloc_bin_reloc(); #ifdef CONFIG_SPI # if ! defined(CFG_ENV_IS_IN_EEPROM) spi_init_f(); # endif spi_init_r(); #endif /* relocate environment function pointers etc. */ env_relocate(); /* board MAC address */ s = getenv("ethaddr"); for (i = 0; i < 6; ++i) { bd->bi_enetaddr[i] = s ? simple_strtoul(s, &e, 16) : 0; if (s) s = (*e) ? e + 1 : e; } /* IP Address */ bd->bi_ip_addr = getenv_IPaddr("ipaddr"); /* Initialize devices */ devices_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 #if defined(CONFIG_CMD_NAND) puts("NAND: "); nand_init(); /* go init the NAND */ #endif #if defined(CONFIG_MISC_INIT_R) /* miscellaneous platform dependent initialisations */ misc_init_r(); #endif #if ((BFIN_CPU == ADSP_BF537) || (BFIN_CPU == ADSP_BF536)) printf("Net: "); eth_initialize(bd); #endif #ifdef CONFIG_DRIVER_SMC91111 #ifdef SHARED_RESOURCES /* Switch to Ethernet */ swap_to(ETHERNET); #endif if ((SMC_inw(BANK_SELECT) & UPPER_BYTE_MASK) != SMC_IDENT) { printf("ERROR: Can't find SMC91111 at address %x\n", SMC_BASE_ADDRESS); } else { printf("Net: SMC91111 at 0x%08X\n", SMC_BASE_ADDRESS); } #ifdef SHARED_RESOURCES swap_to(FLASH); #endif #endif #if defined(CONFIG_SOFT_I2C) || defined(CONFIG_HARD_I2C) init_func_i2c(); #endif #ifdef DEBUG display_global_data(); #endif #if defined(CONFIG_BF537) && defined(CONFIG_POST) if (post_flag) post_run(NULL, POST_RAM | post_bootmode_get(0)); #endif /* main_loop() can return to retry autoboot, if so just run it again. */ for (;;) { main_loop(); } } void hang(void) { puts("### ERROR ### Please RESET the board ###\n"); for (;;) ; }