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Commit 5cc5133a authored by Scott Wood's avatar Scott Wood Committed by Paul Mackerras
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[POWERPC] bootwrapper: cuboot for 83xx 



This adds cuboot support for MPC83xx platforms.

A device tree used with this must have linux,stdout-path in /chosen and
linux,network-index in any network device nodes that need mac addresses
assigned.

Signed-off-by: default avatarScott Wood <scottwood@freescale.com>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent 9b1c59e2

arch/powerpc/boot/Makefile

+2 −1
Original line number Original line Diff line number Diff line
@@ -43,7 +43,7 @@ $(addprefix $(obj)/,$(zlib) main.o): $(addprefix $(obj)/,$(zliblinuxheader)) \ 
src-wlib := string.S crt0.S stdio.c main.c flatdevtree.c flatdevtree_misc.c \

src-wlib := string.S crt0.S stdio.c main.c flatdevtree.c flatdevtree_misc.c \

		ns16550.c serial.c simple_alloc.c div64.S util.S \

		ns16550.c serial.c simple_alloc.c div64.S util.S \

		gunzip_util.c elf_util.c $(zlib) devtree.c

		gunzip_util.c elf_util.c $(zlib) devtree.c

src-plat := of.c

src-plat := of.c cuboot-83xx.c

src-boot := $(src-wlib) $(src-plat) empty.c

src-boot := $(src-wlib) $(src-plat) empty.c





src-boot := $(addprefix $(obj)/, $(src-boot))

src-boot := $(addprefix $(obj)/, $(src-boot))
@@ -162,6 +162,7 @@ $(obj)/zImage.initrd.ps3: vmlinux 
$(obj)/uImage: vmlinux $(wrapperbits)

$(obj)/uImage: vmlinux $(wrapperbits)

	$(call if_changed,wrap,uboot)

	$(call if_changed,wrap,uboot)





cuboot-plat-$(CONFIG_83xx) += 83xx

cuboot-plat-y += unknown-platform

cuboot-plat-y += unknown-platform





dts = $(if $(shell echo $(CONFIG_) | grep '^/'),\

dts = $(if $(shell echo $(CONFIG_) | grep '^/'),\

arch/powerpc/boot/cuboot-83xx.c

0 → 100644
+68 −0
Original line number Original line Diff line number Diff line 
/*

 * Old U-boot compatibility for 83xx

 *

 * Author: Scott Wood <scottwood@freescale.com>

 *

 * 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"



#define TARGET_83xx

#include "ppcboot.h"



static bd_t bd;

extern char _end[];

extern char _dtb_start[], _dtb_end[];



static void platform_fixups(void)

{

	void *soc;



	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 / 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) {

		void *serial = NULL;



		setprop(soc, "bus-frequency", &bd.bi_busfreq,

		        sizeof(bd.bi_busfreq));



		while ((serial = find_node_by_devtype(serial, "serial"))) {

			if (get_parent(serial) != soc)

				continue;



			setprop(serial, "clock-frequency", &bd.bi_busfreq,

			        sizeof(bd.bi_busfreq));

		}

	}

}



void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,

                   unsigned long r6, unsigned long r7)

{

	unsigned long end_of_ram = bd.bi_memstart + bd.bi_memsize;

	unsigned long avail_ram = end_of_ram - (unsigned long)_end;



	memcpy(&bd, (bd_t *)r3, sizeof(bd));

	loader_info.initrd_addr = r4;

	loader_info.initrd_size = r4 ? r5 : 0;

	loader_info.cmdline = (char *)r6;

	loader_info.cmdline_len = r7 - r6;



	simple_alloc_init(_end, avail_ram, 32, 64);

	ft_init(_dtb_start, _dtb_end - _dtb_start, 32);

	serial_console_init();

	platform_ops.fixups = platform_fixups;

}