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  • /*
     * Copyright (c) 2011 The Chromium OS Authors.
     * (C) Copyright 2002-2006
     * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
     *
     * (C) Copyright 2002
     * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
     * Marius Groeger <mgroeger@sysgo.de>
     *
    
     * SPDX-License-Identifier:	GPL-2.0+
    
     */
    
    #include <common.h>
    #include <linux/compiler.h>
    #include <version.h>
    #include <environment.h>
    
    #include <dm.h>
    
    #include <fdtdec.h>
    
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    #if defined(CONFIG_CMD_IDE)
    #include <ide.h>
    #endif
    #include <i2c.h>
    
    #include <initcall.h>
    #include <logbuff.h>
    
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    /* TODO: Can we move these into arch/ headers? */
    #ifdef CONFIG_8xx
    #include <mpc8xx.h>
    #endif
    #ifdef CONFIG_5xx
    #include <mpc5xx.h>
    #endif
    #ifdef CONFIG_MPC5xxx
    #include <mpc5xxx.h>
    #endif
    
    
    #include <os.h>
    
    #include <post.h>
    
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    #include <spi.h>
    
    #include <status_led.h>
    
    #include <trace.h>
    
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    #include <watchdog.h>
    
    #include <asm/errno.h>
    
    #include <asm/io.h>
    
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    #ifdef CONFIG_MP
    #include <asm/mp.h>
    #endif
    
    #include <asm/sections.h>
    
    #ifdef CONFIG_X86
    #include <asm/init_helpers.h>
    #include <asm/relocate.h>
    #endif
    
    #ifdef CONFIG_SANDBOX
    #include <asm/state.h>
    #endif
    
    #include <dm/root.h>
    
    #include <linux/compiler.h>
    
    /*
     * Pointer to initial global data area
     *
     * Here we initialize it if needed.
     */
    #ifdef XTRN_DECLARE_GLOBAL_DATA_PTR
    #undef	XTRN_DECLARE_GLOBAL_DATA_PTR
    #define XTRN_DECLARE_GLOBAL_DATA_PTR	/* empty = allocate here */
    DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CONFIG_SYS_INIT_GD_ADDR);
    #else
    DECLARE_GLOBAL_DATA_PTR;
    #endif
    
    /*
     * sjg: IMO this code should be
     * refactored to a single function, something like:
     *
     * void led_set_state(enum led_colour_t colour, int on);
     */
    /************************************************************************
     * Coloured LED functionality
     ************************************************************************
     * May be supplied by boards if desired
     */
    
    __weak void coloured_LED_init(void) {}
    __weak void red_led_on(void) {}
    __weak void red_led_off(void) {}
    __weak void green_led_on(void) {}
    __weak void green_led_off(void) {}
    __weak void yellow_led_on(void) {}
    __weak void yellow_led_off(void) {}
    __weak void blue_led_on(void) {}
    __weak void blue_led_off(void) {}
    
    
    /*
     * Why is gd allocated a register? Prior to reloc it might be better to
     * just pass it around to each function in this file?
     *
     * After reloc one could argue that it is hardly used and doesn't need
     * to be in a register. Or if it is it should perhaps hold pointers to all
     * global data for all modules, so that post-reloc we can avoid the massive
     * literal pool we get on ARM. Or perhaps just encourage each module to use
     * a structure...
     */
    
    /*
     * Could the CONFIG_SPL_BUILD infection become a flag in gd?
     */
    
    
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    #if defined(CONFIG_WATCHDOG)
    static int init_func_watchdog_init(void)
    {
    	puts("       Watchdog enabled\n");
    	WATCHDOG_RESET();
    
    	return 0;
    }
    
    int init_func_watchdog_reset(void)
    {
    	WATCHDOG_RESET();
    
    	return 0;
    }
    #endif /* CONFIG_WATCHDOG */
    
    void __board_add_ram_info(int use_default)
    {
    	/* please define platform specific board_add_ram_info() */
    }
    
    void board_add_ram_info(int)
    	__attribute__ ((weak, alias("__board_add_ram_info")));
    
    
    static int init_baud_rate(void)
    {
    	gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
    	return 0;
    }
    
    static int display_text_info(void)
    {
    
    #ifndef CONFIG_SANDBOX
    
    	ulong bss_start, bss_end;
    
    
    	bss_start = (ulong)&__bss_start;
    	bss_end = (ulong)&__bss_end;
    
    	debug("U-Boot code: %08X -> %08lX  BSS: -> %08lX\n",
    	      CONFIG_SYS_TEXT_BASE, bss_start, bss_end);
    
    
    #ifdef CONFIG_MODEM_SUPPORT
    	debug("Modem Support enabled\n");
    #endif
    #ifdef CONFIG_USE_IRQ
    	debug("IRQ Stack: %08lx\n", IRQ_STACK_START);
    	debug("FIQ Stack: %08lx\n", FIQ_STACK_START);
    #endif
    
    	return 0;
    }
    
    static int announce_dram_init(void)
    {
    	puts("DRAM:  ");
    	return 0;
    }
    
    
    #if defined(CONFIG_MIPS) || defined(CONFIG_PPC)
    
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    static int init_func_ram(void)
    {
    #ifdef	CONFIG_BOARD_TYPES
    	int board_type = gd->board_type;
    #else
    	int board_type = 0;	/* use dummy arg */
    #endif
    
    	gd->ram_size = initdram(board_type);
    
    	if (gd->ram_size > 0)
    		return 0;
    
    	puts("*** failed ***\n");
    	return 1;
    }
    #endif
    
    
    static int show_dram_config(void)
    {
    
    	unsigned long long size;
    
    
    #ifdef CONFIG_NR_DRAM_BANKS
    	int i;
    
    	debug("\nRAM Configuration:\n");
    	for (i = size = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
    		size += gd->bd->bi_dram[i].size;
    		debug("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
    #ifdef DEBUG
    		print_size(gd->bd->bi_dram[i].size, "\n");
    #endif
    	}
    	debug("\nDRAM:  ");
    #else
    	size = gd->ram_size;
    #endif
    
    
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    	print_size(size, "");
    	board_add_ram_info(0);
    	putc('\n');
    
    
    	return 0;
    }
    
    void __dram_init_banksize(void)
    {
    #if defined(CONFIG_NR_DRAM_BANKS) && defined(CONFIG_SYS_SDRAM_BASE)
    	gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
    	gd->bd->bi_dram[0].size = get_effective_memsize();
    #endif
    }
    
    void dram_init_banksize(void)
    	__attribute__((weak, alias("__dram_init_banksize")));
    
    
    #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
    
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    static int init_func_i2c(void)
    {
    	puts("I2C:   ");
    
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    #ifdef CONFIG_SYS_I2C
    	i2c_init_all();
    #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");
    	return 0;
    }
    #endif
    
    #if defined(CONFIG_HARD_SPI)
    static int init_func_spi(void)
    {
    	puts("SPI:   ");
    	spi_init();
    	puts("ready\n");
    	return 0;
    }
    #endif
    
    __maybe_unused
    
    static int zero_global_data(void)
    {
    	memset((void *)gd, '\0', sizeof(gd_t));
    
    	return 0;
    }
    
    static int setup_mon_len(void)
    {
    
    #ifdef __ARM__
    	gd->mon_len = (ulong)&__bss_end - (ulong)_start;
    
    #elif defined(CONFIG_SANDBOX)
    	gd->mon_len = (ulong)&_end - (ulong)_init;
    
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    	/* TODO: use (ulong)&__bss_end - (ulong)&__text_start; ? */
    	gd->mon_len = (ulong)&__bss_end - CONFIG_SYS_MONITOR_BASE;
    
    	return 0;
    }
    
    __weak int arch_cpu_init(void)
    {
    	return 0;
    }
    
    
    #ifdef CONFIG_OF_HOSTFILE
    
    static int read_fdt_from_file(void)
    {
    	struct sandbox_state *state = state_get_current();
    
    	const char *fname = state->fdt_fname;
    
    
    	blob = map_sysmem(CONFIG_SYS_FDT_LOAD_ADDR, 0);
    	if (!state->fdt_fname) {
    
    		err = fdt_create_empty_tree(blob, 256);
    
    		printf("Unable to create empty FDT: %s\n", fdt_strerror(err));
    		return -EINVAL;
    	}
    
    	size = os_get_filesize(fname);
    	if (size < 0) {
    		printf("Failed to file FDT file '%s'\n", fname);
    		return -ENOENT;
    	}
    	fd = os_open(fname, OS_O_RDONLY);
    	if (fd < 0) {
    		printf("Failed to open FDT file '%s'\n", fname);
    		return -EACCES;
    
    	if (os_read(fd, blob, size) != size) {
    		os_close(fd);
    
    #ifdef CONFIG_SANDBOX
    static int setup_ram_buf(void)
    {
    
    	struct sandbox_state *state = state_get_current();
    
    	gd->arch.ram_buf = state->ram_buf;
    	gd->ram_size = state->ram_size;
    
    static int setup_fdt(void)
    {
    #ifdef CONFIG_OF_EMBED
    	/* Get a pointer to the FDT */
    
    	gd->fdt_blob = __dtb_dt_begin;
    
    #elif defined CONFIG_OF_SEPARATE
    	/* FDT is at end of image */
    
    	gd->fdt_blob = (ulong *)&_end;
    
    #elif defined(CONFIG_OF_HOSTFILE)
    	if (read_fdt_from_file()) {
    		puts("Failed to read control FDT\n");
    		return -1;
    	}
    
    #endif
    	/* Allow the early environment to override the fdt address */
    	gd->fdt_blob = (void *)getenv_ulong("fdtcontroladdr", 16,
    						(uintptr_t)gd->fdt_blob);
    	return 0;
    }
    
    /* Get the top of usable RAM */
    __weak ulong board_get_usable_ram_top(ulong total_size)
    {
    	return gd->ram_top;
    }
    
    static int setup_dest_addr(void)
    {
    	debug("Monitor len: %08lX\n", gd->mon_len);
    	/*
    	 * Ram is setup, size stored in gd !!
    	 */
    	debug("Ram size: %08lX\n", (ulong)gd->ram_size);
    #if defined(CONFIG_SYS_MEM_TOP_HIDE)
    	/*
    	 * Subtract specified amount of memory to hide so that it won't
    	 * get "touched" at all by U-Boot. By fixing up gd->ram_size
    	 * the Linux kernel should now get passed the now "corrected"
    	 * memory size and won't touch it either. This should work
    	 * for arch/ppc and arch/powerpc. Only Linux board ports in
    	 * arch/powerpc with bootwrapper support, that recalculate the
    	 * memory size from the SDRAM controller setup will have to
    	 * get fixed.
    	 */
    	gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE;
    #endif
    #ifdef CONFIG_SYS_SDRAM_BASE
    	gd->ram_top = CONFIG_SYS_SDRAM_BASE;
    #endif
    
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    	gd->ram_top += get_effective_memsize();
    
    	gd->ram_top = board_get_usable_ram_top(gd->mon_len);
    
    	gd->relocaddr = gd->ram_top;
    
    	debug("Ram top: %08lX\n", (ulong)gd->ram_top);
    
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    #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
    	/*
    	 * We need to make sure the location we intend to put secondary core
    	 * boot code is reserved and not used by any part of u-boot
    	 */
    
    	if (gd->relocaddr > determine_mp_bootpg(NULL)) {
    		gd->relocaddr = determine_mp_bootpg(NULL);
    		debug("Reserving MP boot page to %08lx\n", gd->relocaddr);
    
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    	}
    #endif
    
    	return 0;
    }
    
    #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
    static int reserve_logbuffer(void)
    {
    	/* reserve kernel log buffer */
    
    	gd->relocaddr -= LOGBUFF_RESERVE;
    
    	debug("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN,
    
    	return 0;
    }
    #endif
    
    #ifdef CONFIG_PRAM
    /* reserve protected RAM */
    static int reserve_pram(void)
    {
    	ulong reg;
    
    	reg = getenv_ulong("pram", 10, CONFIG_PRAM);
    
    	gd->relocaddr -= (reg << 10);		/* size is in kB */
    
    	debug("Reserving %ldk for protected RAM at %08lx\n", reg,
    
    	return 0;
    }
    #endif /* CONFIG_PRAM */
    
    /* Round memory pointer down to next 4 kB limit */
    static int reserve_round_4k(void)
    {
    
    	gd->relocaddr &= ~(4096 - 1);
    
    	return 0;
    }
    
    #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \
    		defined(CONFIG_ARM)
    static int reserve_mmu(void)
    {
    	/* reserve TLB table */
    
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    	gd->arch.tlb_size = PGTABLE_SIZE;
    
    	gd->relocaddr -= gd->arch.tlb_size;
    
    
    	/* round down to next 64 kB limit */
    
    	gd->relocaddr &= ~(0x10000 - 1);
    
    	gd->arch.tlb_addr = gd->relocaddr;
    
    	debug("TLB table from %08lx to %08lx\n", gd->arch.tlb_addr,
    	      gd->arch.tlb_addr + gd->arch.tlb_size);
    	return 0;
    }
    #endif
    
    #ifdef CONFIG_LCD
    static int reserve_lcd(void)
    {
    #ifdef CONFIG_FB_ADDR
    	gd->fb_base = CONFIG_FB_ADDR;
    #else
    	/* reserve memory for LCD display (always full pages) */
    
    	gd->relocaddr = lcd_setmem(gd->relocaddr);
    	gd->fb_base = gd->relocaddr;
    
    #endif /* CONFIG_FB_ADDR */
    	return 0;
    }
    #endif /* CONFIG_LCD */
    
    
    static int reserve_trace(void)
    {
    #ifdef CONFIG_TRACE
    	gd->relocaddr -= CONFIG_TRACE_BUFFER_SIZE;
    	gd->trace_buff = map_sysmem(gd->relocaddr, CONFIG_TRACE_BUFFER_SIZE);
    	debug("Reserving %dk for trace data at: %08lx\n",
    	      CONFIG_TRACE_BUFFER_SIZE >> 10, gd->relocaddr);
    #endif
    
    	return 0;
    }
    
    
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    #if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) \
    
    		&& !defined(CONFIG_ARM) && !defined(CONFIG_X86)
    
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    static int reserve_video(void)
    {
    	/* reserve memory for video display (always full pages) */
    
    	gd->relocaddr = video_setmem(gd->relocaddr);
    	gd->fb_base = gd->relocaddr;
    
    static int reserve_uboot(void)
    {
    	/*
    	 * reserve memory for U-Boot code, data & bss
    	 * round down to next 4 kB limit
    	 */
    
    	gd->relocaddr -= gd->mon_len;
    	gd->relocaddr &= ~(4096 - 1);
    
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    #ifdef CONFIG_E500
    	/* round down to next 64 kB limit so that IVPR stays aligned */
    
    	gd->relocaddr &= ~(65536 - 1);
    
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    #endif
    
    
    	debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10,
    
    	      gd->relocaddr);
    
    	gd->start_addr_sp = gd->relocaddr;
    
    
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    #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)
    {
    
    	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);
    
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    #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;
    }
    
    static int reserve_stacks(void)
    {
    
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    #ifdef CONFIG_SPL_BUILD
    # ifdef CONFIG_ARM
    
    	gd->start_addr_sp -= 128;	/* leave 32 words for abort-stack */
    	gd->irq_sp = gd->start_addr_sp;
    
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    # endif
    #else
    
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    # ifdef CONFIG_PPC
    	ulong *s;
    # endif
    
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    	/* setup stack pointer for exceptions */
    
    	gd->start_addr_sp -= 16;
    	gd->start_addr_sp &= ~0xf;
    	gd->irq_sp = gd->start_addr_sp;
    
    
    	/*
    	 * Handle architecture-specific things here
    	 * TODO(sjg@chromium.org): Perhaps create arch_reserve_stack()
    	 * to handle this and put in arch/xxx/lib/stack.c
    	 */
    
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    # if defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
    
    #  ifdef CONFIG_USE_IRQ
    
    	gd->start_addr_sp -= (CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ);
    
    	debug("Reserving %zu Bytes for IRQ stack at: %08lx\n",
    
    		CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ, gd->start_addr_sp);
    
    
    	/* 8-byte alignment for ARM ABI compliance */
    
    	gd->start_addr_sp &= ~0x07;
    
    #  endif
    	/* leave 3 words for abort-stack, plus 1 for alignment */
    
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    # elif defined(CONFIG_PPC)
    	/* Clear initial stack frame */
    
    	s = (ulong *) gd->start_addr_sp;
    
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    	*s = 0; /* Terminate back chain */
    	*++s = 0; /* NULL return address */
    
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    # endif /* Architecture specific code */
    
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    #endif
    
    }
    
    static int display_new_sp(void)
    {
    
    	debug("New Stack Pointer is: %08lx\n", gd->start_addr_sp);
    
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    #ifdef CONFIG_PPC
    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) || \
    
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    		defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
    	bd->bi_immr_base = CONFIG_SYS_IMMR;	/* base  of IMMR register     */
    #endif
    #if defined(CONFIG_MPC5xxx)
    	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 */
    
    	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)
    {
    
    	gd->reloc_off = gd->relocaddr - CONFIG_SYS_TEXT_BASE;
    
    	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.
    	 */
    #ifdef CONFIG_X86
    	/*
    	 * 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;
    }
    
    
    static init_fnc_t init_sequence_f[] = {
    
    #ifdef CONFIG_SANDBOX
    	setup_ram_buf,
    
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    #endif
    
    	setup_mon_len,
    
    	setup_fdt,
    	trace_early_init,
    
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    #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 */
    
    #ifdef CONFIG_X86
    	cpu_init_f,		/* TODO(sjg@chromium.org): remove */
    # ifdef CONFIG_OF_CONTROL
    	find_fdt,		/* TODO(sjg@chromium.org): remove */
    # endif
    #endif
    
    	mark_bootstage,
    #ifdef CONFIG_OF_CONTROL
    	fdtdec_check_fdt,
    #endif
    #if defined(CONFIG_BOARD_EARLY_INIT_F)
    	board_early_init_f,
    #endif
    
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    	/* 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)
    
    	timer_init,		/* initialize timer */
    
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    #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
    	env_init,		/* initialize environment */
    
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    #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 */
    
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    	prt_8260_rsr,
    	prt_8260_clks,
    
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    #if defined(CONFIG_MPC83xx)
    	prt_83xx_rsr,
    #endif
    #ifdef CONFIG_PPC
    	checkcpu,
    #endif
    
    	print_cpuinfo,		/* display cpu info (and speed) */
    
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    #if defined(CONFIG_MPC5xxx)
    	prt_mpc5xxx_clks,
    #endif /* CONFIG_MPC5xxx */
    
    #if defined(CONFIG_DISPLAY_BOARDINFO)
    	checkboard,		/* display board info */
    
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    #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)
    
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    	init_func_i2c,
    #endif
    #if defined(CONFIG_HARD_SPI)
    	init_func_spi,
    #endif
    #ifdef CONFIG_X86
    	dram_init_f,		/* configure available RAM banks */
    
    	calculate_relocation_address,
    
    #endif
    	announce_dram_init,
    	/* TODO: unify all these dram functions? */
    #ifdef CONFIG_ARM
    	dram_init,		/* configure available RAM banks */
    #endif
    
    #if defined(CONFIG_MIPS) || defined(CONFIG_PPC)
    
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    	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
    
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    	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_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,
    
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    #endif
    
    	reserve_trace,
    
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    	/* TODO: Why the dependency on CONFIG_8xx? */
    #if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) \
    
    		&& !defined(CONFIG_ARM) && !defined(CONFIG_X86)
    
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    	reserve_video,
    
    #endif
    	reserve_uboot,
    
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    #ifndef CONFIG_SPL_BUILD
    
    	reserve_malloc,
    	reserve_board,
    
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    #endif
    
    	setup_machine,
    	reserve_global_data,
    	reserve_fdt,
    	reserve_stacks,
    	setup_dram_config,
    	show_dram_config,
    
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    #ifdef CONFIG_PPC
    	setup_board_part1,
    	INIT_FUNC_WATCHDOG_RESET
    	setup_board_part2,
    #endif
    
    	display_new_sp,
    
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    #ifdef CONFIG_SYS_EXTBDINFO
    	setup_board_extra,
    #endif
    	INIT_FUNC_WATCHDOG_RESET
    
    	reloc_fdt,
    	setup_reloc,
    
    #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.
    	 */
    
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    	/*
    	 * 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