path: root/arch/frv/kernel/setup.c

/* setup.c: FRV specific setup
 *
 * Copyright (C) 2003-5 Red Hat, Inc. All Rights Reserved.
 * Written by David Howells (dhowells@redhat.com)
 * - Derived from arch/m68k/kernel/setup.c
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version
 * 2 of the License, or (at your option) any later version.
 */

#include <linux/utsrelease.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/fb.h>
#include <linux/console.h>
#include <linux/genhd.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/major.h>
#include <linux/bootmem.h>
#include <linux/highmem.h>
#include <linux/seq_file.h>
#include <linux/serial.h>
#include <linux/serial_core.h>
#include <linux/serial_reg.h>
#include <linux/serial_8250.h>

#include <asm/setup.h>
#include <asm/irq.h>
#include <asm/sections.h>
#include <asm/pgalloc.h>
#include <asm/busctl-regs.h>
#include <asm/serial-regs.h>
#include <asm/timer-regs.h>
#include <asm/irc-regs.h>
#include <asm/spr-regs.h>
#include <asm/mb-regs.h>
#include <asm/mb93493-regs.h>
#include <asm/gdb-stub.h>
#include <asm/io.h>

#ifdef CONFIG_BLK_DEV_INITRD
#include <linux/blk.h>
#include <asm/pgtable.h>
#endif

#include "local.h"

#ifdef CONFIG_MB93090_MB00
static void __init mb93090_display(void);
#endif
#ifdef CONFIG_MMU
static void __init setup_linux_memory(void);
#else
static void __init setup_uclinux_memory(void);
#endif

#ifdef CONFIG_MB93090_MB00
static char __initdata mb93090_banner[] = "FJ/RH FR-V Linux";
static char __initdata mb93090_version[] = UTS_RELEASE;

int __nongprelbss mb93090_mb00_detected;
#endif

const char __frv_unknown_system[] = "unknown";
const char __frv_mb93091_cb10[] = "mb93091-cb10";
const char __frv_mb93091_cb11[] = "mb93091-cb11";
const char __frv_mb93091_cb30[] = "mb93091-cb30";
const char __frv_mb93091_cb41[] = "mb93091-cb41";
const char __frv_mb93091_cb60[] = "mb93091-cb60";
const char __frv_mb93091_cb70[] = "mb93091-cb70";
const char __frv_mb93091_cb451[] = "mb93091-cb451";
const char __frv_mb93090_mb00[] = "mb93090-mb00";

const char __frv_mb93493[] = "mb93493";

const char __frv_mb93093[] = "mb93093";

static const char *__nongprelbss cpu_series;
static const char *__nongprelbss cpu_core;
static const char *__nongprelbss cpu_silicon;
static const char *__nongprelbss cpu_mmu;
static const char *__nongprelbss cpu_system;
static const char *__nongprelbss cpu_board1;
static const char *__nongprelbss cpu_board2;

static unsigned long __nongprelbss cpu_psr_all;
static unsigned long __nongprelbss cpu_hsr0_all;

unsigned long __nongprelbss pdm_suspend_mode;

unsigned long __nongprelbss rom_length;
unsigned long __nongprelbss memory_start;
unsigned long __nongprelbss memory_end;

unsigned long __nongprelbss dma_coherent_mem_start;
unsigned long __nongprelbss dma_coherent_mem_end;

unsigned long __initdata __sdram_old_base;
unsigned long __initdata num_mappedpages;

struct cpuinfo_frv __nongprelbss boot_cpu_data;

char __initdata command_line[COMMAND_LINE_SIZE];
char __initdata redboot_command_line[COMMAND_LINE_SIZE];

#ifdef CONFIG_PM
#define __pminit
#define __pminitdata
#else
#define __pminit __init
#define __pminitdata __initdata
#endif

struct clock_cmode {
	uint8_t	xbus, sdram, corebus, core, dsu;
};

#define _frac(N,D) ((N)<<4 | (D))
#define _x0_16	_frac(1,6)
#define _x0_25	_frac(1,4)
#define _x0_33	_frac(1,3)
#define _x0_375	_frac(3,8)
#define _x0_5	_frac(1,2)
#define _x0_66	_frac(2,3)
#define _x0_75	_frac(3,4)
#define _x1	_frac(1,1)
#define _x1_5	_frac(3,2)
#define _x2	_fra