cuboot-8xx.c

linux 内核源代码

/*
 * Old U-boot compatibility for 8xx
 *
 * Author: Scott Wood <[e-mail]>
 *
 * Copyright (c) 2007 Freescale Semiconductor, Inc.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published
 * by the Free Software Foundation.
 */

#include "ops.h"
#include "stdio.h"
#include "cuboot.h"

#define TARGET_8xx
#define TARGET_HAS_ETH1
#include "ppcboot.h"

static bd_t bd;

static void platform_fixups(void)
{
	void *node;

	dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
	dt_fixup_mac_addresses(bd.bi_enetaddr, bd.bi_enet1addr);
	dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 16, bd.bi_busfreq);

	node = finddevice("/soc/cpm");
	if (node)
		setprop(node, "clock-frequency", &bd.bi_busfreq, 4);

	node = finddevice("/soc/cpm/brg");
	if (node)
		setprop(node, "clock-frequency",  &bd.bi_busfreq, 4);
}

void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
                   unsigned long r6, unsigned long r7)
{
	CUBOOT_INIT();
	ft_init(_dtb_start, _dtb_end - _dtb_start, 32);
	serial_console_init();
	platform_ops.fixups = platform_fixups;
}