upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
423 lines
8.1 KiB
423 lines
8.1 KiB
11 years ago
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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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|
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initr_dataflash,
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||
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|
#endif
|
||
|
|
initr_env,
|
||
|
|
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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||
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|
#endif
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|
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#ifdef CONFIG_MISC_INIT_R
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||
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misc_init_r, /* miscellaneous platform-dependent init */
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||
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|
#endif
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interrupt_init,
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||
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initr_enable_interrupts,
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||
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|
#ifdef CONFIG_CMD_NET
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||
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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
|
||
|
|
#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
|
||
|
|
#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();
|
||
|
|
}
|