Release 4.14 arch/powerpc/boot/cuboot-52xx.c

/*
 * Old U-boot compatibility for MPC5200
 *
 * Author: Grant Likely <grant.likely@secretlab.ca>
 *
 * Copyright (c) 2007 Secret Lab Technologies Ltd.
 * 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 "io.h"
#include "cuboot.h"


#define TARGET_PPC_MPC52xx
#include "ppcboot.h"


static bd_t bd;



static void platform_fixups(void)
{
	void *soc, *reg;
	int div;
	u32 sysfreq;


	dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
	dt_fixup_mac_addresses(bd.bi_enetaddr);
	dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 4, bd.bi_busfreq);

	/* Unfortunately, the specific model number is encoded in the
         * soc node name in existing dts files -- once that is fixed,
         * this can do a simple path lookup.
         */
	soc = find_node_by_devtype(NULL, "soc");
	if (!soc)
		soc = find_node_by_compatible(NULL, "fsl,mpc5200-immr");
	if (!soc)
		soc = find_node_by_compatible(NULL, "fsl,mpc5200b-immr");
	if (soc) {
		setprop(soc, "bus-frequency", &bd.bi_ipbfreq,
			sizeof(bd.bi_ipbfreq));

		if (!dt_xlate_reg(soc, 0, (void*)&reg, NULL))
			return;
		div = in_8(reg + 0x204) & 0x0020 ? 8 : 4;
		sysfreq = bd.bi_busfreq * div;
		setprop(soc, "system-frequency", &sysfreq, sizeof(sysfreq));
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Grant C. Likely
177
100.00%
2
100.00%
Total
177
100.00%
2
100.00%



void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
                   unsigned long r6, unsigned long r7)
{
	CUBOOT_INIT();
	fdt_init(_dtb_start);
	serial_console_init();
	platform_ops.fixups = platform_fixups;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Grant C. Likely
41
97.62%
1
50.00%
David Gibson
1
2.38%
1
50.00%
Total
42
100.00%
2
100.00%

Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Grant C. Likely
241
99.59%
2
66.67%
David Gibson
1
0.41%
1
33.33%
Total
242
100.00%
3
100.00%
Directory: arch/powerpc/boot

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