diff options
Diffstat (limited to 'common')
| -rw-r--r-- | common/Makefile | 1 | ||||
| -rw-r--r-- | common/board_r.c | 422 |
2 files changed, 423 insertions, 0 deletions
diff --git a/common/Makefile b/common/Makefile index a5f5b1a..08af1a8 100644 --- a/common/Makefile +++ b/common/Makefile @@ -38,6 +38,7 @@ COBJS-y += cmd_disk.o # boards COBJS-$(CONFIG_SYS_GENERIC_BOARD) += board_f.o +COBJS-$(CONFIG_SYS_GENERIC_BOARD) += board_r.o # core command COBJS-y += cmd_boot.o diff --git a/common/board_r.c b/common/board_r.c new file mode 100644 index 0000000..06b0df0 --- /dev/null +++ b/common/board_r.c @@ -0,0 +1,422 @@ +/* + * 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> +#ifdef CONFIG_HAS_DATAFLASH +#include <dataflash.h> +#endif +#include <environment.h> +#include <fdtdec.h> +#include <initcall.h> +#include <logbuff.h> +#include <malloc.h> +#include <mmc.h> +#include <nand.h> +#include <onenand_uboot.h> +#include <serial.h> +#include <stdio_dev.h> +#include <asm/sections.h> + +DECLARE_GLOBAL_DATA_PTR; + +ulong monitor_flash_len; + + +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 + +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 +} + +static int initr_serial(void) +{ + serial_initialize(); + return 0; +} + +#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 + +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; + + puts("Flash: "); + + flash_size = flash_init(); + if (flash_size <= 0) { + puts("*** failed ***\n"); + 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'); + + 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); + return 0; +} + +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 */ +static int initr_enable_interrupts(void) +{ + enable_interrupts(); + return 0; +} + +#ifdef CONFIG_CMD_NET +static int initr_ethaddr(void) +{ + + return 0; +} +#endif /* CONFIG_CMD_NET */ + +#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_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); +} +#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. + */ +init_fnc_t init_sequence_r[] = { + initr_reloc, +#ifdef CONFIG_ARM + initr_caches, + board_init, /* Setup chipselects */ +#endif + initr_reloc_global_data, + initr_serial, + initr_announce, +#ifdef CONFIG_LOGBUFFER + initr_logbuffer, +#endif +#ifdef CONFIG_POST + initr_post_backlog, +#endif + initr_malloc, +#ifdef CONFIG_ARCH_EARLY_INIT_R + arch_early_init_r, +#endif + power_init_board, +#ifndef CONFIG_SYS_NO_FLASH + initr_flash, +#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, + 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 + interrupt_init, + initr_enable_interrupts, +#ifdef CONFIG_CMD_NET + initr_ethaddr, +#endif +#ifdef CONFIG_BOARD_LATE_INIT + board_late_init, +#endif +#ifdef CONFIG_BITBANGMII + initr_bbmii, +#endif +#ifdef CONFIG_CMD_NET + initr_net, +#endif +#ifdef CONFIG_POST + initr_post, +#endif + run_main_loop, +}; + +void board_init_r(gd_t *new_gd, ulong dest_addr) +{ + gd = new_gd; + if (initcall_run_list(init_sequence_r)) + hang(); + + /* NOTREACHED - run_main_loop() does not return */ + hang(); +} |