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[POWERPC] bootwrapper: Add 8xx cuboot support

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This allows booting on legacy, non-device-tree aware versions of U-boot.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Scott Wood 2007-08-21 03:40:01 +10:00 • committed by Paul Mackerras
commit 0b195812df
3 changed files with 48 additions and 1 deletions
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3
arch/powerpc/boot/Makefile
View file

@ -48,7 +48,7 @@ src-wlib := string.S crt0.S stdio.c main.c flatdevtree.c flatdevtree_misc.c \
cpm-serial.c
src-plat := of.c cuboot-83xx.c cuboot-85xx.c holly.c \
cuboot-ebony.c treeboot-ebony.c prpmc2800.c \
ps3-head.S ps3-hvcall.S ps3.c treeboot-bamboo.c
ps3-head.S ps3-hvcall.S ps3.c treeboot-bamboo.c cuboot-8xx.c
src-boot := $(src-wlib) $(src-plat) empty.c
src-boot := $(addprefix $(obj)/, $(src-boot))
@ -140,6 +140,7 @@ image-$(CONFIG_PPC_ISERIES) += zImage.iseries
image-$(CONFIG_DEFAULT_UIMAGE) += uImage
ifneq ($(CONFIG_DEVICE_TREE),"")
image-$(CONFIG_PPC_8xx) += cuImage.8xx
image-$(CONFIG_PPC_83xx) += cuImage.83xx
image-$(CONFIG_PPC_85xx) += cuImage.85xx
image-$(CONFIG_EBONY) += treeImage.ebony cuImage.ebony

45
arch/powerpc/boot/cuboot-8xx.c Normal file
View file

@ -0,0 +1,45 @@
/*
* Old U-boot compatibility for 8xx
*
* 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"
#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);
setprop(node, "fsl,brg-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;
}

1
arch/powerpc/platforms/Kconfig.cputype
View file

@ -36,6 +36,7 @@ config PPC_8xx
bool "Freescale 8xx"
select FSL_SOC
select 8xx
select WANT_DEVICE_TREE
config 40x
bool "AMCC 40x"