forked from Minki/linux
40847993d8
Current device trees do not have the device_type = soc property set anymore. Fix up the cuImage bootwrapper fragment to still find the IMMR nodes. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
64 lines
1.6 KiB
C
64 lines
1.6 KiB
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*)®, NULL))
|
|
return;
|
|
div = in_8(reg + 0x204) & 0x0020 ? 8 : 4;
|
|
sysfreq = bd.bi_busfreq * div;
|
|
setprop(soc, "system-frequency", &sysfreq, sizeof(sysfreq));
|
|
}
|
|
}
|
|
|
|
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;
|
|
}
|