linux-sg2042/arch/powerpc/boot/cuboot-warp.c

82 lines
1.7 KiB
C

/*
* Copyright (c) 2008 PIKA Technologies
* Sean MacLennan <smaclennan@pikatech.com>
*
* 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 "4xx.h"
#include "cuboot.h"
#include "stdio.h"
#define TARGET_4xx
#define TARGET_44x
#include "ppcboot.h"
static bd_t bd;
static void warp_fixup_one_nor(u32 from, u32 to)
{
void *devp;
char name[50];
u32 v[2];
sprintf(name, "/plb/opb/ebc/nor_flash@0,0/partition@%x", from);
devp = finddevice(name);
if (!devp)
return;
if (getprop(devp, "reg", v, sizeof(v)) == sizeof(v)) {
v[0] = to;
setprop(devp, "reg", v, sizeof(v));
printf("NOR 64M fixup %x -> %x\r\n", from, to);
}
}
static void warp_fixups(void)
{
ibm440ep_fixup_clocks(66000000, 11059200, 50000000);
ibm4xx_sdram_fixup_memsize();
ibm4xx_fixup_ebc_ranges("/plb/opb/ebc");
dt_fixup_mac_address_by_alias("ethernet0", bd.bi_enetaddr);
/* Fixup for 64M flash on Rev A boards. */
if (bd.bi_flashsize == 0x4000000) {
void *devp;
u32 v[3];
devp = finddevice("/plb/opb/ebc/nor_flash@0,0");
if (!devp)
return;
/* Fixup the size */
if (getprop(devp, "reg", v, sizeof(v)) == sizeof(v)) {
v[2] = bd.bi_flashsize;
setprop(devp, "reg", v, sizeof(v));
}
/* Fixup parition offsets */
warp_fixup_one_nor(0x300000, 0x3f00000);
warp_fixup_one_nor(0x340000, 0x3f40000);
warp_fixup_one_nor(0x380000, 0x3f80000);
}
}
void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
unsigned long r6, unsigned long r7)
{
CUBOOT_INIT();
platform_ops.fixups = warp_fixups;
platform_ops.exit = ibm44x_dbcr_reset;
fdt_init(_dtb_start);
serial_console_init();
}