This file handles common post-relocation init for boards which use the generic framework. Signed-off-by: Simon Glass <sjg@chromium.org>master
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/*
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* Copyright (c) 2011 The Chromium OS Authors. |
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* (C) Copyright 2002-2006 |
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
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* |
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* (C) Copyright 2002 |
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* Sysgo Real-Time Solutions, GmbH <www.elinos.com> |
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* Marius Groeger <mgroeger@sysgo.de> |
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* |
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* See file CREDITS for list of people who contributed to this |
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* project. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation; either version 2 of |
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* the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA |
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*/ |
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#include <common.h> |
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#ifdef CONFIG_HAS_DATAFLASH |
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#include <dataflash.h> |
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#endif |
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#include <environment.h> |
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#include <fdtdec.h> |
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#include <initcall.h> |
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#include <logbuff.h> |
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#include <malloc.h> |
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#include <mmc.h> |
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#include <nand.h> |
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#include <onenand_uboot.h> |
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#include <serial.h> |
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#include <stdio_dev.h> |
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#include <asm/sections.h> |
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DECLARE_GLOBAL_DATA_PTR; |
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ulong monitor_flash_len; |
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static int initr_reloc(void) |
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{ |
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gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ |
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bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R, "board_init_r"); |
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return 0; |
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} |
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#ifdef CONFIG_ARM |
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/*
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* Some of these functions are needed purely because the functions they |
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* call return void. If we change them to return 0, these stubs can go away. |
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*/ |
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static int initr_caches(void) |
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{ |
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/* Enable caches */ |
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enable_caches(); |
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return 0; |
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} |
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#endif |
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static int initr_reloc_global_data(void) |
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{ |
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#ifdef CONFIG_SYS_SYM_OFFSETS |
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monitor_flash_len = _end_ofs; |
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#else |
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monitor_flash_len = (ulong)&__init_end - gd->dest_addr; |
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#endif |
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} |
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static int initr_serial(void) |
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{ |
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serial_initialize(); |
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return 0; |
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} |
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#ifdef CONFIG_LOGBUFFER |
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unsigned long logbuffer_base(void) |
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{ |
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return gd->ram_top - LOGBUFF_LEN; |
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} |
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static int initr_logbuffer(void) |
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{ |
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logbuff_init_ptrs(); |
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return 0; |
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} |
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#endif |
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#ifdef CONFIG_POST |
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static int initr_post_backlog(void) |
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{ |
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post_output_backlog(); |
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return 0; |
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} |
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#endif |
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static int initr_malloc(void) |
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{ |
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ulong malloc_start; |
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/* The malloc area is immediately below the monitor copy in DRAM */ |
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malloc_start = gd->dest_addr - TOTAL_MALLOC_LEN; |
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mem_malloc_init(malloc_start, TOTAL_MALLOC_LEN); |
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return 0; |
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} |
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__weak int power_init_board(void) |
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{ |
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return 0; |
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} |
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static int initr_announce(void) |
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{ |
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debug("Now running in RAM - U-Boot at: %08lx\n", gd->dest_addr); |
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return 0; |
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} |
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#if !defined(CONFIG_SYS_NO_FLASH) |
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static int initr_flash(void) |
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{ |
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ulong flash_size; |
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puts("Flash: "); |
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flash_size = flash_init(); |
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if (flash_size <= 0) { |
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puts("*** failed ***\n"); |
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return -1; |
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} |
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print_size(flash_size, ""); |
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#ifdef CONFIG_SYS_FLASH_CHECKSUM |
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/*
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* Compute and print flash CRC if flashchecksum is set to 'y' |
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* |
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* NOTE: Maybe we should add some WATCHDOG_RESET()? XXX |
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*/ |
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if (getenv_yesno("flashchecksum") == 1) { |
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printf(" CRC: %08X", crc32(0, |
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(const unsigned char *) CONFIG_SYS_FLASH_BASE, |
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flash_size)); |
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} |
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#endif /* CONFIG_SYS_FLASH_CHECKSUM */ |
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putc('\n'); |
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return 0; |
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} |
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#endif |
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#ifdef CONFIG_CMD_NAND |
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/* go init the NAND */ |
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int initr_nand(void) |
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{ |
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puts("NAND: "); |
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nand_init(); |
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return 0; |
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} |
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#endif |
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#if defined(CONFIG_CMD_ONENAND) |
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/* go init the NAND */ |
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int initr_onenand(void) |
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{ |
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puts("NAND: "); |
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onenand_init(); |
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return 0; |
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} |
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#endif |
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#ifdef CONFIG_GENERIC_MMC |
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int initr_mmc(void) |
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{ |
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puts("MMC: "); |
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mmc_initialize(gd->bd); |
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return 0; |
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} |
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#endif |
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#ifdef CONFIG_HAS_DATAFLASH |
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int initr_dataflash(void) |
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{ |
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AT91F_DataflashInit(); |
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dataflash_print_info(); |
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return 0; |
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} |
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#endif |
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/*
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* Tell if it's OK to load the environment early in boot. |
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* |
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* If CONFIG_OF_CONFIG is defined, we'll check with the FDT to see |
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* if this is OK (defaulting to saying it's OK). |
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* |
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* NOTE: Loading the environment early can be a bad idea if security is |
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* important, since no verification is done on the environment. |
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* |
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* @return 0 if environment should not be loaded, !=0 if it is ok to load |
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*/ |
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static int should_load_env(void) |
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{ |
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#ifdef CONFIG_OF_CONTROL |
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return fdtdec_get_config_int(gd->fdt_blob, "load-environment", 1); |
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#elif defined CONFIG_DELAY_ENVIRONMENT |
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return 0; |
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#else |
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return 1; |
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#endif |
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} |
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static int initr_env(void) |
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{ |
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/* initialize environment */ |
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if (should_load_env()) |
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env_relocate(); |
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else |
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set_default_env(NULL); |
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/* Initialize from environment */ |
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load_addr = getenv_ulong("loadaddr", 16, load_addr); |
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return 0; |
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} |
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static int initr_jumptable(void) |
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{ |
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jumptable_init(); |
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return 0; |
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} |
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#if defined(CONFIG_API) |
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static int initr_api(void) |
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{ |
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/* Initialize API */ |
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api_init(); |
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return 0; |
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} |
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#endif |
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#ifdef CONFIG_DISPLAY_BOARDINFO_LATE |
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static int show_model_r(void) |
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{ |
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/* Put this here so it appears on the LCD, now it is ready */ |
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# ifdef CONFIG_OF_CONTROL |
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const char *model; |
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model = (char *)fdt_getprop(gd->fdt_blob, 0, "model", NULL); |
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printf("Model: %s\n", model ? model : "<unknown>"); |
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# else |
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checkboard(); |
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# endif |
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} |
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#endif |
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/* enable exceptions */ |
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static int initr_enable_interrupts(void) |
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{ |
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enable_interrupts(); |
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return 0; |
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} |
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#ifdef CONFIG_CMD_NET |
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static int initr_ethaddr(void) |
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{ |
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return 0; |
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} |
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#endif /* CONFIG_CMD_NET */ |
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#ifdef CONFIG_BITBANGMII |
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static int initr_bbmii(void) |
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{ |
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bb_miiphy_init(); |
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return 0; |
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} |
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#endif |
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#ifdef CONFIG_CMD_NET |
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static int initr_net(void) |
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{ |
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puts("Net: "); |
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eth_initialize(gd->bd); |
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#if defined(CONFIG_RESET_PHY_R) |
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debug("Reset Ethernet PHY\n"); |
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reset_phy(); |
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#endif |
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return 0; |
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} |
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#endif |
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#ifdef CONFIG_POST |
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static int initr_post(void) |
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{ |
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post_run(NULL, POST_RAM | post_bootmode_get(0)); |
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return 0; |
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} |
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#endif |
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#if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER) |
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/*
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* Export available size of memory for Linux, taking into account the |
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* protected RAM at top of memory |
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*/ |
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int initr_mem(void) |
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{ |
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ulong pram = 0; |
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char memsz[32]; |
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# ifdef CONFIG_PRAM |
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pram = getenv_ulong("pram", 10, CONFIG_PRAM); |
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# endif |
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# if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR) |
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/* Also take the logbuffer into account (pram is in kB) */ |
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pram += (LOGBUFF_LEN + LOGBUFF_OVERHEAD) / 1024; |
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# endif |
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sprintf(memsz, "%ldk", (gd->ram_size / 1024) - pram); |
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setenv("mem", memsz); |
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} |
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#endif |
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static int run_main_loop(void) |
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{ |
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/* main_loop() can return to retry autoboot, if so just run it again */ |
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for (;;) |
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main_loop(); |
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return 0; |
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} |
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/*
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* Over time we hope to remove these functions with code fragments and |
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* stub funtcions, and instead call the relevant function directly. |
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* |
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* We also hope to remove most of the driver-related init and do it if/when |
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* the driver is later used. |
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*/ |
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init_fnc_t init_sequence_r[] = { |
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initr_reloc, |
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#ifdef CONFIG_ARM |
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initr_caches, |
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board_init, /* Setup chipselects */ |
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#endif |
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initr_reloc_global_data, |
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initr_serial, |
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initr_announce, |
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#ifdef CONFIG_LOGBUFFER |
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initr_logbuffer, |
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#endif |
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#ifdef CONFIG_POST |
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initr_post_backlog, |
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#endif |
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initr_malloc, |
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#ifdef CONFIG_ARCH_EARLY_INIT_R |
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arch_early_init_r, |
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#endif |
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power_init_board, |
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#ifndef CONFIG_SYS_NO_FLASH |
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initr_flash, |
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#endif |
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#ifdef CONFIG_CMD_NAND |
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initr_nand, |
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#endif |
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#ifdef CONFIG_CMD_ONENAND |
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initr_onenand, |
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#endif |
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#ifdef CONFIG_GENERIC_MMC |
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initr_mmc, |
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#endif |
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#ifdef CONFIG_HAS_DATAFLASH |
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initr_dataflash, |
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#endif |
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initr_env, |
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stdio_init, |
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initr_jumptable, |
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#ifdef CONFIG_API |
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initr_api, |
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#endif |
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console_init_r, /* fully init console as a device */ |
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#ifdef CONFIG_DISPLAY_BOARDINFO_LATE |
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show_model_r, |
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#endif |
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#ifdef CONFIG_ARCH_MISC_INIT |
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arch_misc_init, /* miscellaneous arch-dependent init */ |
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#endif |
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#ifdef CONFIG_MISC_INIT_R |
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misc_init_r, /* miscellaneous platform-dependent init */ |
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#endif |
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interrupt_init, |
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initr_enable_interrupts, |
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#ifdef CONFIG_CMD_NET |
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initr_ethaddr, |
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#endif |
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#ifdef CONFIG_BOARD_LATE_INIT |
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board_late_init, |
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#endif |
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#ifdef CONFIG_BITBANGMII |
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initr_bbmii, |
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#endif |
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#ifdef CONFIG_CMD_NET |
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initr_net, |
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#endif |
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#ifdef CONFIG_POST |
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initr_post, |
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#endif |
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run_main_loop, |
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}; |
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void board_init_r(gd_t *new_gd, ulong dest_addr) |
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{ |
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gd = new_gd; |
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if (initcall_run_list(init_sequence_r)) |
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hang(); |
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/* NOTREACHED - run_main_loop() does not return */ |
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hang(); |
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} |
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