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https://github.com/brain-hackers/u-boot-brain
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![Joe Hershberger](/assets/img/avatar_default.png)
In the case where the arch defines a custom map_sysmem(), make sure that including just mapmem.h is sufficient to have these functions as they are when the arch does not override it. Also split the non-arch specific functions out of common.h Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Reviewed-by: Simon Glass <sjg@chromium.org>
1111 lines
26 KiB
C
1111 lines
26 KiB
C
/*
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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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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <linux/compiler.h>
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#include <version.h>
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#include <environment.h>
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#include <dm.h>
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#include <fdtdec.h>
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#include <fs.h>
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#if defined(CONFIG_CMD_IDE)
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#include <ide.h>
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#endif
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#include <i2c.h>
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#include <initcall.h>
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#include <logbuff.h>
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#include <mapmem.h>
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/* TODO: Can we move these into arch/ headers? */
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#ifdef CONFIG_8xx
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#include <mpc8xx.h>
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#endif
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#ifdef CONFIG_5xx
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#include <mpc5xx.h>
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#endif
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#ifdef CONFIG_MPC5xxx
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#include <mpc5xxx.h>
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#endif
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#if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
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#include <asm/mp.h>
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#endif
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#include <os.h>
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#include <post.h>
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#include <spi.h>
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#include <status_led.h>
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#include <trace.h>
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#include <watchdog.h>
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#include <asm/errno.h>
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#include <asm/io.h>
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#include <asm/sections.h>
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#if defined(CONFIG_X86) || defined(CONFIG_ARC)
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#include <asm/init_helpers.h>
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#include <asm/relocate.h>
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#endif
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#ifdef CONFIG_SANDBOX
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#include <asm/state.h>
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#endif
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#include <dm/root.h>
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#include <linux/compiler.h>
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/*
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* Pointer to initial global data area
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*
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* Here we initialize it if needed.
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*/
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#ifdef XTRN_DECLARE_GLOBAL_DATA_PTR
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#undef XTRN_DECLARE_GLOBAL_DATA_PTR
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#define XTRN_DECLARE_GLOBAL_DATA_PTR /* empty = allocate here */
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DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CONFIG_SYS_INIT_GD_ADDR);
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#else
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DECLARE_GLOBAL_DATA_PTR;
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#endif
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/*
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* sjg: IMO this code should be
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* refactored to a single function, something like:
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*
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* void led_set_state(enum led_colour_t colour, int on);
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*/
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/************************************************************************
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* Coloured LED functionality
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************************************************************************
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* May be supplied by boards if desired
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*/
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__weak void coloured_LED_init(void) {}
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__weak void red_led_on(void) {}
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__weak void red_led_off(void) {}
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__weak void green_led_on(void) {}
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__weak void green_led_off(void) {}
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__weak void yellow_led_on(void) {}
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__weak void yellow_led_off(void) {}
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__weak void blue_led_on(void) {}
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__weak void blue_led_off(void) {}
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/*
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* Why is gd allocated a register? Prior to reloc it might be better to
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* just pass it around to each function in this file?
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*
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* After reloc one could argue that it is hardly used and doesn't need
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* to be in a register. Or if it is it should perhaps hold pointers to all
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* global data for all modules, so that post-reloc we can avoid the massive
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* literal pool we get on ARM. Or perhaps just encourage each module to use
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* a structure...
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*/
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/*
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* Could the CONFIG_SPL_BUILD infection become a flag in gd?
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*/
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#if defined(CONFIG_WATCHDOG) || defined(CONFIG_HW_WATCHDOG)
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static int init_func_watchdog_init(void)
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{
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# if defined(CONFIG_HW_WATCHDOG) && (defined(CONFIG_BLACKFIN) || \
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defined(CONFIG_M68K) || defined(CONFIG_MICROBLAZE) || \
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defined(CONFIG_SH) || defined(CONFIG_AT91SAM9_WATCHDOG) || \
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defined(CONFIG_IMX_WATCHDOG))
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hw_watchdog_init();
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# endif
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puts(" Watchdog enabled\n");
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WATCHDOG_RESET();
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return 0;
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}
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int init_func_watchdog_reset(void)
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{
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WATCHDOG_RESET();
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return 0;
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}
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#endif /* CONFIG_WATCHDOG */
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__weak void board_add_ram_info(int use_default)
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{
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/* please define platform specific board_add_ram_info() */
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}
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static int init_baud_rate(void)
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{
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gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
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return 0;
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}
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static int display_text_info(void)
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{
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#ifndef CONFIG_SANDBOX
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ulong bss_start, bss_end, text_base;
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bss_start = (ulong)&__bss_start;
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bss_end = (ulong)&__bss_end;
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#ifdef CONFIG_SYS_TEXT_BASE
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text_base = CONFIG_SYS_TEXT_BASE;
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#else
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text_base = CONFIG_SYS_MONITOR_BASE;
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#endif
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debug("U-Boot code: %08lX -> %08lX BSS: -> %08lX\n",
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text_base, bss_start, bss_end);
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#endif
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#ifdef CONFIG_MODEM_SUPPORT
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debug("Modem Support enabled\n");
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#endif
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#ifdef CONFIG_USE_IRQ
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debug("IRQ Stack: %08lx\n", IRQ_STACK_START);
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debug("FIQ Stack: %08lx\n", FIQ_STACK_START);
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#endif
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return 0;
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}
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static int announce_dram_init(void)
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{
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puts("DRAM: ");
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return 0;
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}
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#if defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_M68K)
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static int init_func_ram(void)
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{
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#ifdef CONFIG_BOARD_TYPES
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int board_type = gd->board_type;
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#else
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int board_type = 0; /* use dummy arg */
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#endif
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gd->ram_size = initdram(board_type);
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if (gd->ram_size > 0)
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return 0;
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puts("*** failed ***\n");
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return 1;
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}
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#endif
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static int show_dram_config(void)
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{
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unsigned long long size;
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#ifdef CONFIG_NR_DRAM_BANKS
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int i;
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debug("\nRAM Configuration:\n");
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for (i = size = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
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size += gd->bd->bi_dram[i].size;
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debug("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
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#ifdef DEBUG
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print_size(gd->bd->bi_dram[i].size, "\n");
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#endif
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}
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debug("\nDRAM: ");
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#else
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size = gd->ram_size;
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#endif
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print_size(size, "");
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board_add_ram_info(0);
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putc('\n');
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return 0;
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}
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__weak void dram_init_banksize(void)
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{
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#if defined(CONFIG_NR_DRAM_BANKS) && defined(CONFIG_SYS_SDRAM_BASE)
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gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
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gd->bd->bi_dram[0].size = get_effective_memsize();
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#endif
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}
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#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
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static int init_func_i2c(void)
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{
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puts("I2C: ");
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#ifdef CONFIG_SYS_I2C
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i2c_init_all();
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#else
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i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
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#endif
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puts("ready\n");
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return 0;
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}
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#endif
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#if defined(CONFIG_HARD_SPI)
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static int init_func_spi(void)
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{
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puts("SPI: ");
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spi_init();
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puts("ready\n");
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return 0;
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}
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#endif
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__maybe_unused
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static int zero_global_data(void)
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{
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memset((void *)gd, '\0', sizeof(gd_t));
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return 0;
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}
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static int setup_mon_len(void)
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{
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#if defined(__ARM__) || defined(__MICROBLAZE__)
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gd->mon_len = (ulong)&__bss_end - (ulong)_start;
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#elif defined(CONFIG_SANDBOX)
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gd->mon_len = (ulong)&_end - (ulong)_init;
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#elif defined(CONFIG_BLACKFIN) || defined(CONFIG_NIOS2)
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gd->mon_len = CONFIG_SYS_MONITOR_LEN;
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#else
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/* TODO: use (ulong)&__bss_end - (ulong)&__text_start; ? */
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gd->mon_len = (ulong)&__bss_end - CONFIG_SYS_MONITOR_BASE;
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#endif
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return 0;
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}
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__weak int arch_cpu_init(void)
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{
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return 0;
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}
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#ifdef CONFIG_OF_HOSTFILE
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static int read_fdt_from_file(void)
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{
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struct sandbox_state *state = state_get_current();
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const char *fname = state->fdt_fname;
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void *blob;
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loff_t size;
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int err;
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int fd;
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blob = map_sysmem(CONFIG_SYS_FDT_LOAD_ADDR, 0);
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if (!state->fdt_fname) {
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err = fdt_create_empty_tree(blob, 256);
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if (!err)
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goto done;
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printf("Unable to create empty FDT: %s\n", fdt_strerror(err));
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return -EINVAL;
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}
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err = os_get_filesize(fname, &size);
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if (err < 0) {
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printf("Failed to file FDT file '%s'\n", fname);
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return err;
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}
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fd = os_open(fname, OS_O_RDONLY);
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if (fd < 0) {
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printf("Failed to open FDT file '%s'\n", fname);
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return -EACCES;
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}
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if (os_read(fd, blob, size) != size) {
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os_close(fd);
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return -EIO;
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}
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os_close(fd);
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done:
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gd->fdt_blob = blob;
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return 0;
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}
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#endif
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#ifdef CONFIG_SANDBOX
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static int setup_ram_buf(void)
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{
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struct sandbox_state *state = state_get_current();
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gd->arch.ram_buf = state->ram_buf;
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gd->ram_size = state->ram_size;
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return 0;
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}
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#endif
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static int setup_fdt(void)
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{
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#ifdef CONFIG_OF_CONTROL
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# ifdef CONFIG_OF_EMBED
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/* Get a pointer to the FDT */
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gd->fdt_blob = __dtb_dt_begin;
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# elif defined CONFIG_OF_SEPARATE
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/* FDT is at end of image */
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gd->fdt_blob = (ulong *)&_end;
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# elif defined(CONFIG_OF_HOSTFILE)
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if (read_fdt_from_file()) {
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puts("Failed to read control FDT\n");
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return -1;
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}
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# endif
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/* Allow the early environment to override the fdt address */
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gd->fdt_blob = (void *)getenv_ulong("fdtcontroladdr", 16,
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(uintptr_t)gd->fdt_blob);
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#endif
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return 0;
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}
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/* Get the top of usable RAM */
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__weak ulong board_get_usable_ram_top(ulong total_size)
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{
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#ifdef CONFIG_SYS_SDRAM_BASE
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/*
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* Detect whether we have so much RAM it goes past the end of our
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* 32-bit address space. If so, clip the usable RAM so it doesn't.
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*/
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if (gd->ram_top < CONFIG_SYS_SDRAM_BASE)
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/*
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* Will wrap back to top of 32-bit space when reservations
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* are made.
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*/
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return 0;
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#endif
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return gd->ram_top;
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}
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static int setup_dest_addr(void)
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{
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debug("Monitor len: %08lX\n", gd->mon_len);
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/*
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* Ram is setup, size stored in gd !!
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*/
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debug("Ram size: %08lX\n", (ulong)gd->ram_size);
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#if defined(CONFIG_SYS_MEM_TOP_HIDE)
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/*
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* Subtract specified amount of memory to hide so that it won't
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* get "touched" at all by U-Boot. By fixing up gd->ram_size
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* the Linux kernel should now get passed the now "corrected"
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* memory size and won't touch it either. This should work
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* for arch/ppc and arch/powerpc. Only Linux board ports in
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* arch/powerpc with bootwrapper support, that recalculate the
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* memory size from the SDRAM controller setup will have to
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* get fixed.
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*/
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gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE;
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#endif
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#ifdef CONFIG_SYS_SDRAM_BASE
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gd->ram_top = CONFIG_SYS_SDRAM_BASE;
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#endif
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gd->ram_top += get_effective_memsize();
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gd->ram_top = board_get_usable_ram_top(gd->mon_len);
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gd->relocaddr = gd->ram_top;
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debug("Ram top: %08lX\n", (ulong)gd->ram_top);
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#if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
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/*
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* We need to make sure the location we intend to put secondary core
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* boot code is reserved and not used by any part of u-boot
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*/
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if (gd->relocaddr > determine_mp_bootpg(NULL)) {
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gd->relocaddr = determine_mp_bootpg(NULL);
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debug("Reserving MP boot page to %08lx\n", gd->relocaddr);
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}
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#endif
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return 0;
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}
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#if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
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static int reserve_logbuffer(void)
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{
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/* reserve kernel log buffer */
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gd->relocaddr -= LOGBUFF_RESERVE;
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debug("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN,
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gd->relocaddr);
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return 0;
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}
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#endif
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#ifdef CONFIG_PRAM
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/* reserve protected RAM */
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static int reserve_pram(void)
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{
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ulong reg;
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reg = getenv_ulong("pram", 10, CONFIG_PRAM);
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gd->relocaddr -= (reg << 10); /* size is in kB */
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debug("Reserving %ldk for protected RAM at %08lx\n", reg,
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gd->relocaddr);
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return 0;
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}
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#endif /* CONFIG_PRAM */
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/* Round memory pointer down to next 4 kB limit */
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static int reserve_round_4k(void)
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{
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gd->relocaddr &= ~(4096 - 1);
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return 0;
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}
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#if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \
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defined(CONFIG_ARM)
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static int reserve_mmu(void)
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{
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/* reserve TLB table */
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gd->arch.tlb_size = PGTABLE_SIZE;
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gd->relocaddr -= gd->arch.tlb_size;
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/* round down to next 64 kB limit */
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gd->relocaddr &= ~(0x10000 - 1);
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gd->arch.tlb_addr = gd->relocaddr;
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debug("TLB table from %08lx to %08lx\n", gd->arch.tlb_addr,
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gd->arch.tlb_addr + gd->arch.tlb_size);
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return 0;
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}
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#endif
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#ifdef CONFIG_LCD
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static int reserve_lcd(void)
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{
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#ifdef CONFIG_FB_ADDR
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gd->fb_base = CONFIG_FB_ADDR;
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#else
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/* reserve memory for LCD display (always full pages) */
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gd->relocaddr = lcd_setmem(gd->relocaddr);
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gd->fb_base = gd->relocaddr;
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#endif /* CONFIG_FB_ADDR */
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return 0;
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}
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#endif /* CONFIG_LCD */
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static int reserve_trace(void)
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{
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#ifdef CONFIG_TRACE
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gd->relocaddr -= CONFIG_TRACE_BUFFER_SIZE;
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gd->trace_buff = map_sysmem(gd->relocaddr, CONFIG_TRACE_BUFFER_SIZE);
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debug("Reserving %dk for trace data at: %08lx\n",
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CONFIG_TRACE_BUFFER_SIZE >> 10, gd->relocaddr);
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#endif
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return 0;
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}
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#if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) && \
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!defined(CONFIG_ARM) && !defined(CONFIG_X86) && \
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!defined(CONFIG_BLACKFIN) && !defined(CONFIG_M68K)
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static int reserve_video(void)
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{
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/* reserve memory for video display (always full pages) */
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gd->relocaddr = video_setmem(gd->relocaddr);
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gd->fb_base = gd->relocaddr;
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return 0;
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}
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#endif
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static int reserve_uboot(void)
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{
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/*
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* reserve memory for U-Boot code, data & bss
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* round down to next 4 kB limit
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*/
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gd->relocaddr -= gd->mon_len;
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gd->relocaddr &= ~(4096 - 1);
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#ifdef CONFIG_E500
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|
/* round down to next 64 kB limit so that IVPR stays aligned */
|
|
gd->relocaddr &= ~(65536 - 1);
|
|
#endif
|
|
|
|
debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10,
|
|
gd->relocaddr);
|
|
|
|
gd->start_addr_sp = gd->relocaddr;
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifndef CONFIG_SPL_BUILD
|
|
/* reserve memory for malloc() area */
|
|
static int reserve_malloc(void)
|
|
{
|
|
gd->start_addr_sp = gd->start_addr_sp - TOTAL_MALLOC_LEN;
|
|
debug("Reserving %dk for malloc() at: %08lx\n",
|
|
TOTAL_MALLOC_LEN >> 10, gd->start_addr_sp);
|
|
return 0;
|
|
}
|
|
|
|
/* (permanently) allocate a Board Info struct */
|
|
static int reserve_board(void)
|
|
{
|
|
if (!gd->bd) {
|
|
gd->start_addr_sp -= sizeof(bd_t);
|
|
gd->bd = (bd_t *)map_sysmem(gd->start_addr_sp, sizeof(bd_t));
|
|
memset(gd->bd, '\0', sizeof(bd_t));
|
|
debug("Reserving %zu Bytes for Board Info at: %08lx\n",
|
|
sizeof(bd_t), gd->start_addr_sp);
|
|
}
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static int setup_machine(void)
|
|
{
|
|
#ifdef CONFIG_MACH_TYPE
|
|
gd->bd->bi_arch_number = CONFIG_MACH_TYPE; /* board id for Linux */
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
static int reserve_global_data(void)
|
|
{
|
|
gd->start_addr_sp -= sizeof(gd_t);
|
|
gd->new_gd = (gd_t *)map_sysmem(gd->start_addr_sp, sizeof(gd_t));
|
|
debug("Reserving %zu Bytes for Global Data at: %08lx\n",
|
|
sizeof(gd_t), gd->start_addr_sp);
|
|
return 0;
|
|
}
|
|
|
|
static int reserve_fdt(void)
|
|
{
|
|
/*
|
|
* If the device tree is sitting immediate above our image then we
|
|
* must relocate it. If it is embedded in the data section, then it
|
|
* will be relocated with other data.
|
|
*/
|
|
if (gd->fdt_blob) {
|
|
gd->fdt_size = ALIGN(fdt_totalsize(gd->fdt_blob) + 0x1000, 32);
|
|
|
|
gd->start_addr_sp -= gd->fdt_size;
|
|
gd->new_fdt = map_sysmem(gd->start_addr_sp, gd->fdt_size);
|
|
debug("Reserving %lu Bytes for FDT at: %08lx\n",
|
|
gd->fdt_size, gd->start_addr_sp);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int arch_reserve_stacks(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int reserve_stacks(void)
|
|
{
|
|
/* make stack pointer 16-byte aligned */
|
|
gd->start_addr_sp -= 16;
|
|
gd->start_addr_sp &= ~0xf;
|
|
|
|
/*
|
|
* let the architecture specific code tailor gd->start_addr_sp and
|
|
* gd->irq_sp
|
|
*/
|
|
return arch_reserve_stacks();
|
|
}
|
|
|
|
static int display_new_sp(void)
|
|
{
|
|
debug("New Stack Pointer is: %08lx\n", gd->start_addr_sp);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#if defined(CONFIG_PPC) || defined(CONFIG_M68K)
|
|
static int setup_board_part1(void)
|
|
{
|
|
bd_t *bd = gd->bd;
|
|
|
|
/*
|
|
* Save local variables to board info struct
|
|
*/
|
|
|
|
bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of memory */
|
|
bd->bi_memsize = gd->ram_size; /* size in bytes */
|
|
|
|
#ifdef CONFIG_SYS_SRAM_BASE
|
|
bd->bi_sramstart = CONFIG_SYS_SRAM_BASE; /* start of SRAM */
|
|
bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE; /* size of SRAM */
|
|
#endif
|
|
|
|
#if defined(CONFIG_8xx) || defined(CONFIG_MPC8260) || defined(CONFIG_5xx) || \
|
|
defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
|
|
bd->bi_immr_base = CONFIG_SYS_IMMR; /* base of IMMR register */
|
|
#endif
|
|
#if defined(CONFIG_MPC5xxx) || defined(CONFIG_M68K)
|
|
bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */
|
|
#endif
|
|
#if defined(CONFIG_MPC83xx)
|
|
bd->bi_immrbar = CONFIG_SYS_IMMR;
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int setup_board_part2(void)
|
|
{
|
|
bd_t *bd = gd->bd;
|
|
|
|
bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */
|
|
bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */
|
|
#if defined(CONFIG_CPM2)
|
|
bd->bi_cpmfreq = gd->arch.cpm_clk;
|
|
bd->bi_brgfreq = gd->arch.brg_clk;
|
|
bd->bi_sccfreq = gd->arch.scc_clk;
|
|
bd->bi_vco = gd->arch.vco_out;
|
|
#endif /* CONFIG_CPM2 */
|
|
#if defined(CONFIG_MPC512X)
|
|
bd->bi_ipsfreq = gd->arch.ips_clk;
|
|
#endif /* CONFIG_MPC512X */
|
|
#if defined(CONFIG_MPC5xxx)
|
|
bd->bi_ipbfreq = gd->arch.ipb_clk;
|
|
bd->bi_pcifreq = gd->pci_clk;
|
|
#endif /* CONFIG_MPC5xxx */
|
|
#if defined(CONFIG_M68K) && defined(CONFIG_PCI)
|
|
bd->bi_pcifreq = gd->pci_clk;
|
|
#endif
|
|
#if defined(CONFIG_EXTRA_CLOCK)
|
|
bd->bi_inpfreq = gd->arch.inp_clk; /* input Freq in Hz */
|
|
bd->bi_vcofreq = gd->arch.vco_clk; /* vco Freq in Hz */
|
|
bd->bi_flbfreq = gd->arch.flb_clk; /* flexbus Freq in Hz */
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_SYS_EXTBDINFO
|
|
static int setup_board_extra(void)
|
|
{
|
|
bd_t *bd = gd->bd;
|
|
|
|
strncpy((char *) bd->bi_s_version, "1.2", sizeof(bd->bi_s_version));
|
|
strncpy((char *) bd->bi_r_version, U_BOOT_VERSION,
|
|
sizeof(bd->bi_r_version));
|
|
|
|
bd->bi_procfreq = gd->cpu_clk; /* Processor Speed, In Hz */
|
|
bd->bi_plb_busfreq = gd->bus_clk;
|
|
#if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
|
|
defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
|
|
defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
|
|
bd->bi_pci_busfreq = get_PCI_freq();
|
|
bd->bi_opbfreq = get_OPB_freq();
|
|
#elif defined(CONFIG_XILINX_405)
|
|
bd->bi_pci_busfreq = get_PCI_freq();
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_POST
|
|
static int init_post(void)
|
|
{
|
|
post_bootmode_init();
|
|
post_run(NULL, POST_ROM | post_bootmode_get(0));
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static int setup_dram_config(void)
|
|
{
|
|
/* Ram is board specific, so move it to board code ... */
|
|
dram_init_banksize();
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int reloc_fdt(void)
|
|
{
|
|
if (gd->new_fdt) {
|
|
memcpy(gd->new_fdt, gd->fdt_blob, gd->fdt_size);
|
|
gd->fdt_blob = gd->new_fdt;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int setup_reloc(void)
|
|
{
|
|
#ifdef CONFIG_SYS_TEXT_BASE
|
|
gd->reloc_off = gd->relocaddr - CONFIG_SYS_TEXT_BASE;
|
|
#ifdef CONFIG_M68K
|
|
/*
|
|
* On all ColdFire arch cpu, monitor code starts always
|
|
* just after the default vector table location, so at 0x400
|
|
*/
|
|
gd->reloc_off = gd->relocaddr - (CONFIG_SYS_TEXT_BASE + 0x400);
|
|
#endif
|
|
#endif
|
|
memcpy(gd->new_gd, (char *)gd, sizeof(gd_t));
|
|
|
|
debug("Relocation Offset is: %08lx\n", gd->reloc_off);
|
|
debug("Relocating to %08lx, new gd at %08lx, sp at %08lx\n",
|
|
gd->relocaddr, (ulong)map_to_sysmem(gd->new_gd),
|
|
gd->start_addr_sp);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* ARM calls relocate_code from its crt0.S */
|
|
#if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
|
|
|
|
static int jump_to_copy(void)
|
|
{
|
|
/*
|
|
* x86 is special, but in a nice way. It uses a trampoline which
|
|
* enables the dcache if possible.
|
|
*
|
|
* For now, other archs use relocate_code(), which is implemented
|
|
* similarly for all archs. When we do generic relocation, hopefully
|
|
* we can make all archs enable the dcache prior to relocation.
|
|
*/
|
|
#if defined(CONFIG_X86) || defined(CONFIG_ARC)
|
|
/*
|
|
* SDRAM and console are now initialised. The final stack can now
|
|
* be setup in SDRAM. Code execution will continue in Flash, but
|
|
* with the stack in SDRAM and Global Data in temporary memory
|
|
* (CPU cache)
|
|
*/
|
|
board_init_f_r_trampoline(gd->start_addr_sp);
|
|
#else
|
|
relocate_code(gd->start_addr_sp, gd->new_gd, gd->relocaddr);
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
/* Record the board_init_f() bootstage (after arch_cpu_init()) */
|
|
static int mark_bootstage(void)
|
|
{
|
|
bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_F, "board_init_f");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int initf_malloc(void)
|
|
{
|
|
#ifdef CONFIG_SYS_MALLOC_F_LEN
|
|
assert(gd->malloc_base); /* Set up by crt0.S */
|
|
gd->malloc_limit = gd->malloc_base + CONFIG_SYS_MALLOC_F_LEN;
|
|
gd->malloc_ptr = 0;
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int initf_dm(void)
|
|
{
|
|
#if defined(CONFIG_DM) && defined(CONFIG_SYS_MALLOC_F_LEN)
|
|
int ret;
|
|
|
|
ret = dm_init_and_scan(true);
|
|
if (ret)
|
|
return ret;
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Architecture-specific memory reservation */
|
|
__weak int reserve_arch(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
__weak int arch_cpu_init_dm(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static init_fnc_t init_sequence_f[] = {
|
|
#ifdef CONFIG_SANDBOX
|
|
setup_ram_buf,
|
|
#endif
|
|
setup_mon_len,
|
|
setup_fdt,
|
|
#ifdef CONFIG_TRACE
|
|
trace_early_init,
|
|
#endif
|
|
initf_malloc,
|
|
#if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
|
|
/* TODO: can this go into arch_cpu_init()? */
|
|
probecpu,
|
|
#endif
|
|
arch_cpu_init, /* basic arch cpu dependent setup */
|
|
mark_bootstage,
|
|
#ifdef CONFIG_OF_CONTROL
|
|
fdtdec_check_fdt,
|
|
#endif
|
|
initf_dm,
|
|
arch_cpu_init_dm,
|
|
#if defined(CONFIG_BOARD_EARLY_INIT_F)
|
|
board_early_init_f,
|
|
#endif
|
|
/* TODO: can any of this go into arch_cpu_init()? */
|
|
#if defined(CONFIG_PPC) && !defined(CONFIG_8xx_CPUCLK_DEFAULT)
|
|
get_clocks, /* get CPU and bus clocks (etc.) */
|
|
#if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \
|
|
&& !defined(CONFIG_TQM885D)
|
|
adjust_sdram_tbs_8xx,
|
|
#endif
|
|
/* TODO: can we rename this to timer_init()? */
|
|
init_timebase,
|
|
#endif
|
|
#if defined(CONFIG_ARM) || defined(CONFIG_MIPS) || defined(CONFIG_BLACKFIN)
|
|
timer_init, /* initialize timer */
|
|
#endif
|
|
#ifdef CONFIG_SYS_ALLOC_DPRAM
|
|
#if !defined(CONFIG_CPM2)
|
|
dpram_init,
|
|
#endif
|
|
#endif
|
|
#if defined(CONFIG_BOARD_POSTCLK_INIT)
|
|
board_postclk_init,
|
|
#endif
|
|
#ifdef CONFIG_FSL_ESDHC
|
|
get_clocks,
|
|
#endif
|
|
#ifdef CONFIG_M68K
|
|
get_clocks,
|
|
#endif
|
|
env_init, /* initialize environment */
|
|
#if defined(CONFIG_8xx_CPUCLK_DEFAULT)
|
|
/* get CPU and bus clocks according to the environment variable */
|
|
get_clocks_866,
|
|
/* adjust sdram refresh rate according to the new clock */
|
|
sdram_adjust_866,
|
|
init_timebase,
|
|
#endif
|
|
init_baud_rate, /* initialze baudrate settings */
|
|
serial_init, /* serial communications setup */
|
|
console_init_f, /* stage 1 init of console */
|
|
#ifdef CONFIG_SANDBOX
|
|
sandbox_early_getopt_check,
|
|
#endif
|
|
#ifdef CONFIG_OF_CONTROL
|
|
fdtdec_prepare_fdt,
|
|
#endif
|
|
display_options, /* say that we are here */
|
|
display_text_info, /* show debugging info if required */
|
|
#if defined(CONFIG_MPC8260)
|
|
prt_8260_rsr,
|
|
prt_8260_clks,
|
|
#endif /* CONFIG_MPC8260 */
|
|
#if defined(CONFIG_MPC83xx)
|
|
prt_83xx_rsr,
|
|
#endif
|
|
#if defined(CONFIG_PPC) || defined(CONFIG_M68K)
|
|
checkcpu,
|
|
#endif
|
|
print_cpuinfo, /* display cpu info (and speed) */
|
|
#if defined(CONFIG_MPC5xxx)
|
|
prt_mpc5xxx_clks,
|
|
#endif /* CONFIG_MPC5xxx */
|
|
#if defined(CONFIG_DISPLAY_BOARDINFO)
|
|
show_board_info,
|
|
#endif
|
|
INIT_FUNC_WATCHDOG_INIT
|
|
#if defined(CONFIG_MISC_INIT_F)
|
|
misc_init_f,
|
|
#endif
|
|
INIT_FUNC_WATCHDOG_RESET
|
|
#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
|
|
init_func_i2c,
|
|
#endif
|
|
#if defined(CONFIG_HARD_SPI)
|
|
init_func_spi,
|
|
#endif
|
|
announce_dram_init,
|
|
/* TODO: unify all these dram functions? */
|
|
#if defined(CONFIG_ARM) || defined(CONFIG_X86) || defined(CONFIG_MICROBLAZE) || defined(CONFIG_AVR32)
|
|
dram_init, /* configure available RAM banks */
|
|
#endif
|
|
#if defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_M68K)
|
|
init_func_ram,
|
|
#endif
|
|
#ifdef CONFIG_POST
|
|
post_init_f,
|
|
#endif
|
|
INIT_FUNC_WATCHDOG_RESET
|
|
#if defined(CONFIG_SYS_DRAM_TEST)
|
|
testdram,
|
|
#endif /* CONFIG_SYS_DRAM_TEST */
|
|
INIT_FUNC_WATCHDOG_RESET
|
|
|
|
#ifdef CONFIG_POST
|
|
init_post,
|
|
#endif
|
|
INIT_FUNC_WATCHDOG_RESET
|
|
/*
|
|
* Now that we have DRAM mapped and working, we can
|
|
* relocate the code and continue running from DRAM.
|
|
*
|
|
* Reserve memory at end of RAM for (top down in that order):
|
|
* - area that won't get touched by U-Boot and Linux (optional)
|
|
* - kernel log buffer
|
|
* - protected RAM
|
|
* - LCD framebuffer
|
|
* - monitor code
|
|
* - board info struct
|
|
*/
|
|
setup_dest_addr,
|
|
#if defined(CONFIG_BLACKFIN) || defined(CONFIG_NIOS2)
|
|
/* Blackfin u-boot monitor should be on top of the ram */
|
|
reserve_uboot,
|
|
#endif
|
|
#if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
|
|
reserve_logbuffer,
|
|
#endif
|
|
#ifdef CONFIG_PRAM
|
|
reserve_pram,
|
|
#endif
|
|
reserve_round_4k,
|
|
#if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \
|
|
defined(CONFIG_ARM)
|
|
reserve_mmu,
|
|
#endif
|
|
#ifdef CONFIG_LCD
|
|
reserve_lcd,
|
|
#endif
|
|
reserve_trace,
|
|
/* TODO: Why the dependency on CONFIG_8xx? */
|
|
#if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) && \
|
|
!defined(CONFIG_ARM) && !defined(CONFIG_X86) && \
|
|
!defined(CONFIG_BLACKFIN) && !defined(CONFIG_M68K)
|
|
reserve_video,
|
|
#endif
|
|
#if !defined(CONFIG_BLACKFIN) && !defined(CONFIG_NIOS2)
|
|
reserve_uboot,
|
|
#endif
|
|
#ifndef CONFIG_SPL_BUILD
|
|
reserve_malloc,
|
|
reserve_board,
|
|
#endif
|
|
setup_machine,
|
|
reserve_global_data,
|
|
reserve_fdt,
|
|
reserve_arch,
|
|
reserve_stacks,
|
|
setup_dram_config,
|
|
show_dram_config,
|
|
#if defined(CONFIG_PPC) || defined(CONFIG_M68K)
|
|
setup_board_part1,
|
|
INIT_FUNC_WATCHDOG_RESET
|
|
setup_board_part2,
|
|
#endif
|
|
display_new_sp,
|
|
#ifdef CONFIG_SYS_EXTBDINFO
|
|
setup_board_extra,
|
|
#endif
|
|
INIT_FUNC_WATCHDOG_RESET
|
|
reloc_fdt,
|
|
setup_reloc,
|
|
#if defined(CONFIG_X86) || defined(CONFIG_ARC)
|
|
copy_uboot_to_ram,
|
|
clear_bss,
|
|
do_elf_reloc_fixups,
|
|
#endif
|
|
#if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
|
|
jump_to_copy,
|
|
#endif
|
|
NULL,
|
|
};
|
|
|
|
void board_init_f(ulong boot_flags)
|
|
{
|
|
#ifdef CONFIG_SYS_GENERIC_GLOBAL_DATA
|
|
/*
|
|
* For some archtectures, global data is initialized and used before
|
|
* calling this function. The data should be preserved. For others,
|
|
* CONFIG_SYS_GENERIC_GLOBAL_DATA should be defined and use the stack
|
|
* here to host global data until relocation.
|
|
*/
|
|
gd_t data;
|
|
|
|
gd = &data;
|
|
|
|
/*
|
|
* Clear global data before it is accessed at debug print
|
|
* in initcall_run_list. Otherwise the debug print probably
|
|
* get the wrong vaule of gd->have_console.
|
|
*/
|
|
zero_global_data();
|
|
#endif
|
|
|
|
gd->flags = boot_flags;
|
|
gd->have_console = 0;
|
|
|
|
if (initcall_run_list(init_sequence_f))
|
|
hang();
|
|
|
|
#if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
|
|
/* NOTREACHED - jump_to_copy() does not return */
|
|
hang();
|
|
#endif
|
|
}
|
|
|
|
#if defined(CONFIG_X86) || defined(CONFIG_ARC)
|
|
/*
|
|
* For now this code is only used on x86.
|
|
*
|
|
* init_sequence_f_r is the list of init functions which are run when
|
|
* U-Boot is executing from Flash with a semi-limited 'C' environment.
|
|
* The following limitations must be considered when implementing an
|
|
* '_f_r' function:
|
|
* - 'static' variables are read-only
|
|
* - Global Data (gd->xxx) is read/write
|
|
*
|
|
* The '_f_r' sequence must, as a minimum, copy U-Boot to RAM (if
|
|
* supported). It _should_, if possible, copy global data to RAM and
|
|
* initialise the CPU caches (to speed up the relocation process)
|
|
*
|
|
* NOTE: At present only x86 uses this route, but it is intended that
|
|
* all archs will move to this when generic relocation is implemented.
|
|
*/
|
|
static init_fnc_t init_sequence_f_r[] = {
|
|
init_cache_f_r,
|
|
|
|
NULL,
|
|
};
|
|
|
|
void board_init_f_r(void)
|
|
{
|
|
if (initcall_run_list(init_sequence_f_r))
|
|
hang();
|
|
|
|
/*
|
|
* U-Boot has been copied into SDRAM, the BSS has been cleared etc.
|
|
* Transfer execution from Flash to RAM by calculating the address
|
|
* of the in-RAM copy of board_init_r() and calling it
|
|
*/
|
|
(board_init_r + gd->reloc_off)((gd_t *)gd, gd->relocaddr);
|
|
|
|
/* NOTREACHED - board_init_r() does not return */
|
|
hang();
|
|
}
|
|
#endif /* CONFIG_X86 */
|
|
|
|
#ifndef CONFIG_X86
|
|
ulong board_init_f_mem(ulong top)
|
|
{
|
|
/* Leave space for the stack we are running with now */
|
|
top -= 0x40;
|
|
|
|
top -= sizeof(struct global_data);
|
|
top = ALIGN(top, 16);
|
|
gd = (struct global_data *)top;
|
|
memset((void *)gd, '\0', sizeof(*gd));
|
|
|
|
#ifdef CONFIG_SYS_MALLOC_F_LEN
|
|
top -= CONFIG_SYS_MALLOC_F_LEN;
|
|
gd->malloc_base = top;
|
|
#endif
|
|
|
|
return top;
|
|
}
|
|
#endif /* !CONFIG_X86 */
|