linux/arch/powerpc/boot/redboot-83xx.c
Thomas Gleixner d2912cb15b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
Based on 2 normalized pattern(s):

  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

  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 #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:09:55 +02:00

58 lines
1.3 KiB
C

// SPDX-License-Identifier: GPL-2.0-only
/*
* RedBoot firmware support
*
* Author: Scott Wood <scottwood@freescale.com>
*
* Copyright (c) 2007 Freescale Semiconductor, Inc.
* Copyright (c) 2008 Codehermit
*/
#include "ops.h"
#include "stdio.h"
#include "redboot.h"
#include "fsl-soc.h"
#include "io.h"
static bd_t bd;
BSS_STACK(4096);
#define MHZ(x) ((x + 500000) / 1000000)
static void platform_fixups(void)
{
void *node;
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 / 16, bd.bi_busfreq);
node = finddevice("/soc/cpm/brg");
if (node) {
printf("BRG clock-frequency <- 0x%x (%dMHz)\r\n",
bd.bi_busfreq, MHZ(bd.bi_busfreq));
setprop(node, "clock-frequency", &bd.bi_busfreq, 4);
}
}
void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
unsigned long r6, unsigned long r7)
{
memcpy(&bd, (char *)r3, sizeof(bd));
if (bd.bi_tag != 0x42444944)
return;
simple_alloc_init(_end,
bd.bi_memstart + bd.bi_memsize - (unsigned long)_end,
32, 64);
fdt_init(_dtb_start);
serial_console_init();
platform_ops.fixups = platform_fixups;
loader_info.cmdline = (char *)bd.bi_cmdline;
loader_info.cmdline_len = strlen((char *)bd.bi_cmdline);
}