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Diffstat (limited to 'common/board_r.c')
| -rw-r--r-- | common/board_r.c | 917 |
1 files changed, 917 insertions, 0 deletions
diff --git a/common/board_r.c b/common/board_r.c new file mode 100644 index 000000000..9605f80a0 --- /dev/null +++ b/common/board_r.c @@ -0,0 +1,917 @@ +/* + * Copyright (c) 2011 The Chromium OS Authors. + * (C) Copyright 2002-2006 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger <mgroeger@sysgo.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> +/* TODO: can we just include all these headers whether needed or not? */ +#if defined(CONFIG_CMD_BEDBUG) +#include <bedbug/type.h> +#endif +#ifdef CONFIG_HAS_DATAFLASH +#include <dataflash.h> +#endif +#include <environment.h> +#include <fdtdec.h> +#if defined(CONFIG_CMD_IDE) +#include <ide.h> +#endif +#include <initcall.h> +#ifdef CONFIG_PS2KBD +#include <keyboard.h> +#endif +#if defined(CONFIG_CMD_KGDB) +#include <kgdb.h> +#endif +#include <logbuff.h> +#include <malloc.h> +#ifdef CONFIG_BITBANGMII +#include <miiphy.h> +#endif +#include <mmc.h> +#include <nand.h> +#include <onenand_uboot.h> +#include <scsi.h> +#include <serial.h> +#include <spi.h> +#include <stdio_dev.h> +#include <watchdog.h> +#ifdef CONFIG_ADDR_MAP +#include <asm/mmu.h> +#endif +#include <asm/sections.h> +#ifdef CONFIG_X86 +#include <asm/init_helpers.h> +#endif +#include <linux/compiler.h> + +DECLARE_GLOBAL_DATA_PTR; + +ulong monitor_flash_len; + +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 initr_secondary_cpu(void) +{ + /* + * 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 + */ + /* TODO: maybe define this for all archs? */ + cpu_secondary_init_r(); + + return 0; +} + +static int initr_reloc(void) +{ + gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ + bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R, "board_init_r"); + + return 0; +} + +#ifdef CONFIG_ARM +/* + * Some of these functions are needed purely because the functions they + * call return void. If we change them to return 0, these stubs can go away. + */ +static int initr_caches(void) +{ + /* Enable caches */ + enable_caches(); + return 0; +} +#endif + +__weak int fixup_cpu(void) +{ + return 0; +} + +static int initr_reloc_global_data(void) +{ +#ifdef CONFIG_SYS_SYM_OFFSETS + monitor_flash_len = _end_ofs; +#else + monitor_flash_len = (ulong)&__init_end - gd->dest_addr; +#endif +#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. + * TODO: why not just add gd->reloc_ofs? + */ + gd->arch.cpu += gd->dest_addr - CONFIG_SYS_MONITOR_BASE; + + /* + * If we didn't know the cpu mask & # cores, we can save them of + * now rather than 'computing' them constantly + */ + fixup_cpu(); +#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 += gd->dest_addr - CONFIG_SYS_MONITOR_BASE; +#endif + return 0; +} + +static int initr_serial(void) +{ + serial_initialize(); + return 0; +} + +#ifdef CONFIG_PPC +static int initr_trap(void) +{ + /* + * Setup trap handlers + */ + trap_init(gd->dest_addr); + + return 0; +} +#endif + +#ifdef CONFIG_ADDR_MAP +static int initr_addr_map(void) +{ + init_addr_map(); + + return 0; +} +#endif + +#ifdef CONFIG_LOGBUFFER +unsigned long logbuffer_base(void) +{ + return gd->ram_top - LOGBUFF_LEN; +} + +static int initr_logbuffer(void) +{ + logbuff_init_ptrs(); + return 0; +} +#endif + +#ifdef CONFIG_POST +static int initr_post_backlog(void) +{ + post_output_backlog(); + return 0; +} +#endif + +#ifdef CONFIG_SYS_DELAYED_ICACHE +static int initr_icache_enable(void) +{ + return 0; +} +#endif + +#if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500) +static int initr_unlock_ram_in_cache(void) +{ + unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */ + return 0; +} +#endif + +#ifdef CONFIG_PCI +static int initr_pci(void) +{ + pci_init(); + + return 0; +} +#endif + +#ifdef CONFIG_WINBOND_83C553 +static int initr_w83c553f(void) +{ + /* + * Initialise the ISA bridge + */ + initialise_w83c553f(); + return 0; +} +#endif + +static int initr_barrier(void) +{ +#ifdef CONFIG_PPC + /* TODO: Can we not use dmb() macros for this? */ + asm("sync ; isync"); +#endif + return 0; +} + +static int initr_malloc(void) +{ + ulong malloc_start; + + /* The malloc area is immediately below the monitor copy in DRAM */ + malloc_start = gd->dest_addr - TOTAL_MALLOC_LEN; + mem_malloc_init(malloc_start, TOTAL_MALLOC_LEN); + return 0; +} + +__weak int power_init_board(void) +{ + return 0; +} + +static int initr_announce(void) +{ + debug("Now running in RAM - U-Boot at: %08lx\n", gd->dest_addr); + return 0; +} + +#if !defined(CONFIG_SYS_NO_FLASH) +static int initr_flash(void) +{ + ulong flash_size = 0; + bd_t *bd = gd->bd; + int ok; + + 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 */ + ok = 1; + } else { + flash_size = flash_init(); + ok = flash_size > 0; + } + if (!ok) { + puts("*** failed ***\n"); +#ifdef CONFIG_PPC + /* Why does PPC do this? */ + hang(); +#endif + return -1; + } + print_size(flash_size, ""); +#ifdef CONFIG_SYS_FLASH_CHECKSUM + /* + * Compute and print flash CRC if flashchecksum is set to 'y' + * + * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX + */ + if (getenv_yesno("flashchecksum") == 1) { + printf(" CRC: %08X", crc32(0, + (const unsigned char *) CONFIG_SYS_FLASH_BASE, + flash_size)); + } +#endif /* CONFIG_SYS_FLASH_CHECKSUM */ + putc('\n'); + + /* update start of FLASH memory */ +#ifdef CONFIG_SYS_FLASH_BASE + bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; +#endif + /* size of FLASH memory (final value) */ + bd->bi_flashsize = flash_size; + +#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 monitor */ +#endif + return 0; +} +#endif + +#ifdef CONFIG_PPC +static int initr_spi(void) +{ + /* PPC does this here */ +#ifdef CONFIG_SPI +#if !defined(CONFIG_ENV_IS_IN_EEPROM) + spi_init_f(); +#endif + spi_init_r(); +#endif + return 0; +} +#endif + +#ifdef CONFIG_CMD_NAND +/* go init the NAND */ +int initr_nand(void) +{ + puts("NAND: "); + nand_init(); + return 0; +} +#endif + +#if defined(CONFIG_CMD_ONENAND) +/* go init the NAND */ +int initr_onenand(void) +{ + puts("NAND: "); + onenand_init(); + return 0; +} +#endif + +#ifdef CONFIG_GENERIC_MMC +int initr_mmc(void) +{ + puts("MMC: "); + mmc_initialize(gd->bd); + return 0; +} +#endif + +#ifdef CONFIG_HAS_DATAFLASH +int initr_dataflash(void) +{ + AT91F_DataflashInit(); + dataflash_print_info(); + return 0; +} +#endif + +/* + * Tell if it's OK to load the environment early in boot. + * + * If CONFIG_OF_CONFIG is defined, we'll check with the FDT to see + * if this is OK (defaulting to saying it's OK). + * + * NOTE: Loading the environment early can be a bad idea if security is + * important, since no verification is done on the environment. + * + * @return 0 if environment should not be loaded, !=0 if it is ok to load + */ +static int should_load_env(void) +{ +#ifdef CONFIG_OF_CONTROL + return fdtdec_get_config_int(gd->fdt_blob, "load-environment", 1); +#elif defined CONFIG_DELAY_ENVIRONMENT + return 0; +#else + return 1; +#endif +} + +static int initr_env(void) +{ + /* initialize environment */ + if (should_load_env()) + env_relocate(); + else + set_default_env(NULL); + + /* Initialize from environment */ + load_addr = getenv_ulong("loadaddr", 16, load_addr); +#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'))) { + gd->bd->bi_iic_fast[0] = 1; + gd->bd->bi_iic_fast[1] = 1; + } + } +#endif /* CONFIG_I2CFAST */ +#endif /* CONFIG_405GP, CONFIG_405EP */ +#endif /* CONFIG_SYS_EXTBDINFO */ + return 0; +} + +#ifdef CONFIG_HERMES +static int initr_hermes(void) +{ + if ((gd->board_type >> 16) == 2) + gd->bd->bi_ethspeed = gd->board_type & 0xFFFF; + else + gd->bd->bi_ethspeed = 0xFFFF; + return 0; +} + +static int initr_hermes_start(void) +{ + if (gd->bd->bi_ethspeed != 0xFFFF) + hermes_start_lxt980((int) gd->bd->bi_ethspeed); + return 0; +} +#endif + +#ifdef CONFIG_SC3 +/* TODO: with new initcalls, move this into the driver */ +extern void sc3_read_eeprom(void); + +static int initr_sc3_read_eeprom(void) +{ + sc3_read_eeprom(); + return 0; +} +#endif + +static int initr_jumptable(void) +{ + jumptable_init(); + return 0; +} + +#if defined(CONFIG_API) +static int initr_api(void) +{ + /* Initialize API */ + api_init(); + return 0; +} +#endif + +#ifdef CONFIG_DISPLAY_BOARDINFO_LATE +static int show_model_r(void) +{ + /* Put this here so it appears on the LCD, now it is ready */ +# ifdef CONFIG_OF_CONTROL + const char *model; + + model = (char *)fdt_getprop(gd->fdt_blob, 0, "model", NULL); + printf("Model: %s\n", model ? model : "<unknown>"); +# else + checkboard(); +# endif +} +#endif + +/* enable exceptions */ +#ifdef CONFIG_ARM +static int initr_enable_interrupts(void) +{ + enable_interrupts(); + return 0; +} +#endif + +#ifdef CONFIG_CMD_NET +static int initr_ethaddr(void) +{ + bd_t *bd = gd->bd; + + /* 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 + return 0; +} +#endif /* CONFIG_CMD_NET */ + +#ifdef CONFIG_CMD_KGDB +static int initr_kgdb(void) +{ + puts("KGDB: "); + kgdb_init(); + return 0; +} +#endif + +#if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT) +static int initr_status_led(void) +{ + status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING); + + return 0; +} +#endif + +#if defined(CONFIG_CMD_SCSI) +static int initr_scsi(void) +{ + /* Not supported properly on ARM yet */ +#ifndef CONFIG_ARM + puts("SCSI: "); + scsi_init(); +#endif + + return 0; +} +#endif /* CONFIG_CMD_NET */ + +#if defined(CONFIG_CMD_DOC) +static int initr_doc(void) +{ + puts("DOC: "); + doc_init(); +} +#endif + +#ifdef CONFIG_BITBANGMII +static int initr_bbmii(void) +{ + bb_miiphy_init(); + return 0; +} +#endif + +#ifdef CONFIG_CMD_NET +static int initr_net(void) +{ + puts("Net: "); + eth_initialize(gd->bd); +#if defined(CONFIG_RESET_PHY_R) + debug("Reset Ethernet PHY\n"); + reset_phy(); +#endif + return 0; +} +#endif + +#ifdef CONFIG_POST +static int initr_post(void) +{ + post_run(NULL, POST_RAM | post_bootmode_get(0)); + return 0; +} +#endif + +#if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_CMD_IDE) +static int initr_pcmcia(void) +{ + puts("PCMCIA:"); + pcmcia_init(); + return 0; +} +#endif + +#if defined(CONFIG_CMD_IDE) +static int initr_ide(void) +{ +#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 + return 0; +} +#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 + */ +int initr_mem(void) +{ + ulong pram = 0; + char memsz[32]; + +# ifdef CONFIG_PRAM + pram = getenv_ulong("pram", 10, CONFIG_PRAM); +# endif +# if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR) + /* Also take the logbuffer into account (pram is in kB) */ + pram += (LOGBUFF_LEN + LOGBUFF_OVERHEAD) / 1024; +# endif + sprintf(memsz, "%ldk", (gd->ram_size / 1024) - pram); + setenv("mem", memsz); + + return 0; +} +#endif + +#ifdef CONFIG_CMD_BEDBUG +static int initr_bedbug(void) +{ + bedbug_init(); + + return 0; +} +#endif + +#ifdef CONFIG_PS2KBD +static int initr_kbd(void) +{ + puts("PS/2: "); + kbd_init(); + return 0; +} +#endif + +#ifdef CONFIG_MODEM_SUPPORT +static int initr_modem(void) +{ + /* TODO: with new initcalls, move this into the driver */ + extern int do_mdm_init; + + do_mdm_init = gd->do_mdm_init; + return 0; +} +#endif + +static int run_main_loop(void) +{ + /* main_loop() can return to retry autoboot, if so just run it again */ + for (;;) + main_loop(); + return 0; +} + +/* + * Over time we hope to remove these functions with code fragments and + * stub funtcions, and instead call the relevant function directly. + * + * We also hope to remove most of the driver-related init and do it if/when + * the driver is later used. + * + * TODO: perhaps reset the watchdog in the initcall function after each call? + */ +init_fnc_t init_sequence_r[] = { + initr_reloc, + /* TODO: could x86/PPC have this also perhaps? */ +#ifdef CONFIG_ARM + initr_caches, + board_init, /* Setup chipselects */ +#endif + /* + * TODO: printing of the clock inforamtion of the board is now + * implemented as part of bdinfo command. Currently only support for + * davinci SOC's is added. Remove this check once all the board + * implement this. + */ +#ifdef CONFIG_CLOCKS + set_cpu_clk_info, /* Setup clock information */ +#endif +#ifdef CONFIG_X86 + init_bd_struct_r, +#endif + initr_reloc_global_data, + initr_serial, + initr_announce, + INIT_FUNC_WATCHDOG_RESET +#ifdef CONFIG_PPC + initr_trap, +#endif +#ifdef CONFIG_ADDR_MAP + initr_addr_map, +#endif +#if defined(CONFIG_BOARD_EARLY_INIT_R) + board_early_init_r, +#endif + INIT_FUNC_WATCHDOG_RESET +#ifdef CONFIG_LOGBUFFER + initr_logbuffer, +#endif +#ifdef CONFIG_POST + initr_post_backlog, +#endif + INIT_FUNC_WATCHDOG_RESET +#ifdef CONFIG_SYS_DELAYED_ICACHE + initr_icache_enable, +#endif +#if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500) + initr_unlock_ram_in_cache, +#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. + */ + initr_pci, +#endif +#ifdef CONFIG_WINBOND_83C553 + initr_w83c553f, +#endif + initr_barrier, + initr_malloc, +#ifdef CONFIG_ARCH_EARLY_INIT_R + arch_early_init_r, +#endif + power_init_board, +#ifndef CONFIG_SYS_NO_FLASH + initr_flash, +#endif + INIT_FUNC_WATCHDOG_RESET +#if defined(CONFIG_PPC) || defined(CONFIG_X86) + /* initialize higher level parts of CPU like time base and timers */ + cpu_init_r, +#endif +#ifdef CONFIG_PPC + initr_spi, +#endif +#if defined(CONFIG_X86) && defined(CONFIG_SPI) + init_func_spi, +#endif +#ifdef CONFIG_CMD_NAND + initr_nand, +#endif +#ifdef CONFIG_CMD_ONENAND + initr_onenand, +#endif +#ifdef CONFIG_GENERIC_MMC + initr_mmc, +#endif +#ifdef CONFIG_HAS_DATAFLASH + initr_dataflash, +#endif + initr_env, + INIT_FUNC_WATCHDOG_RESET + initr_secondary_cpu, +#ifdef CONFIG_SC3 + initr_sc3_read_eeprom, +#endif +#ifdef CONFIG_HERMES + initr_hermes, +#endif +#if defined(CONFIG_ID_EEPROM) || defined(CONFIG_SYS_I2C_MAC_OFFSET) + mac_read_from_eeprom, +#endif + INIT_FUNC_WATCHDOG_RESET +#if defined(CONFIG_PCI) && !defined(CONFIG_SYS_EARLY_PCI_INIT) + /* + * Do pci configuration + */ + initr_pci, +#endif + stdio_init, + initr_jumptable, +#ifdef CONFIG_API + initr_api, +#endif + console_init_r, /* fully init console as a device */ +#ifdef CONFIG_DISPLAY_BOARDINFO_LATE + show_model_r, +#endif +#ifdef CONFIG_ARCH_MISC_INIT + arch_misc_init, /* miscellaneous arch-dependent init */ +#endif +#ifdef CONFIG_MISC_INIT_R + misc_init_r, /* miscellaneous platform-dependent init */ +#endif +#ifdef CONFIG_HERMES + initr_hermes_start, +#endif + INIT_FUNC_WATCHDOG_RESET +#ifdef CONFIG_CMD_KGDB + initr_kgdb, +#endif +#ifdef CONFIG_X86 + board_early_init_r, +#endif + interrupt_init, +#if defined(CONFIG_ARM) || defined(CONFIG_x86) + initr_enable_interrupts, +#endif +#ifdef CONFIG_X86 + timer_init, /* initialize timer */ +#endif +#if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT) + initr_status_led, +#endif + /* PPC has a udelay(20) here dating from 2002. Why? */ +#ifdef CONFIG_CMD_NET + initr_ethaddr, +#endif +#ifdef CONFIG_BOARD_LATE_INIT + board_late_init, +#endif +#ifdef CONFIG_CMD_SCSI + INIT_FUNC_WATCHDOG_RESET + initr_scsi, +#endif +#ifdef CONFIG_CMD_DOC + INIT_FUNC_WATCHDOG_RESET + initr_doc, +#endif +#ifdef CONFIG_BITBANGMII + initr_bbmii, +#endif +#ifdef CONFIG_CMD_NET + INIT_FUNC_WATCHDOG_RESET + initr_net, +#endif +#ifdef CONFIG_POST + initr_post, +#endif +#if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_CMD_IDE) + initr_pcmcia, +#endif +#if defined(CONFIG_CMD_IDE) + initr_ide, +#endif +#ifdef CONFIG_LAST_STAGE_INIT + INIT_FUNC_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 +#ifdef CONFIG_CMD_BEDBUG + INIT_FUNC_WATCHDOG_RESET + initr_bedbug, +#endif +#if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER) + initr_mem, +#endif +#ifdef CONFIG_PS2KBD + initr_kbd, +#endif +#ifdef CONFIG_MODEM_SUPPORT + initr_modem, +#endif + run_main_loop, +}; + +void board_init_r(gd_t *new_gd, ulong dest_addr) +{ +#ifndef CONFIG_X86 + gd = new_gd; +#endif + if (initcall_run_list(init_sequence_r)) + hang(); + + /* NOTREACHED - run_main_loop() does not return */ + hang(); +} |