path: root/arch/ppc/kernel/cputable.c

/*
 *  arch/ppc/kernel/cputable.c
 *
 *  Copyright (C) 2001 Ben. Herrenschmidt (benh@kernel.crashing.org)
 *
 *  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/config.h>
#include <linux/string.h>
#include <linux/sched.h>
#include <linux/threads.h>
#include <linux/init.h>
#include <asm/cputable.h>

struct cpu_spec* cur_cpu_spec[NR_CPUS];

extern void __setup_cpu_601(unsigned long offset, int cpu_nr, struct cpu_spec* spec);
extern void __setup_cpu_603(unsigned long offset, int cpu_nr, struct cpu_spec* spec);
extern void __setup_cpu_604(unsigned long offset, int cpu_nr, struct cpu_spec* spec);
extern void __setup_cpu_750(unsigned long offset, int cpu_nr, struct cpu_spec* spec);
extern void __setup_cpu_750cx(unsigned long offset, int cpu_nr, struct cpu_spec* spec);
extern void __setup_cpu_750fx(unsigned long offset, int cpu_nr, struct cpu_spec* spec);
extern void __setup_cpu_7400(unsigned long offset, int cpu_nr, struct cpu_spec* spec);
extern void __setup_cpu_7410(unsigned long offset, int cpu_nr, struct cpu_spec* spec);
extern void __setup_cpu_745x(unsigned long offset, int cpu_nr, struct cpu_spec* spec);
extern void __setup_cpu_power3(unsigned long offset, int cpu_nr, struct cpu_spec* spec);
extern void __setup_cpu_power4(unsigned long offset, int cpu_nr, struct cpu_spec* spec);
extern void __setup_cpu_ppc970(unsigned long offset, int cpu_nr, struct cpu_spec* spec);
extern void __setup_cpu_generic(unsigned long offset, int cpu_nr, struct cpu_spec* spec);

#define CLASSIC_PPC (!defined(CONFIG_8xx) && !defined(CONFIG_4xx) && \
		     !defined(CONFIG_POWER3) && !defined(CONFIG_POWER4) && \
		     !defined(CONFIG_BOOKE))

/* This table only contains "desktop" CPUs, it need to be filled with embedded
 * ones as well...
 */
#define COMMON_PPC	(PPC_FEATURE_32 | PPC_FEATURE_HAS_FPU | \
			 PPC_FEATURE_HAS_MMU)

/* We only set the altivec features if the kernel was compiled with altivec
 * support
 */
#ifdef CONFIG_ALTIVEC
#define CPU_FTR_ALTIVEC_COMP		CPU_FTR_ALTIVEC
#define PPC_FEATURE_ALTIVEC_COMP    	PPC_FEATURE_HAS_ALTIVEC
#else
#define CPU_FTR_ALTIVEC_COMP		0
#define PPC_FEATURE_ALTIVEC_COMP       	0
#endif

/* We only set the spe features if the kernel was compiled with
 * spe support
 */
#ifdef CONFIG_SPE
#define PPC_FEATURE_SPE_COMP    	PPC_FEATURE_HAS_SPE
#else
#define PPC_FEATURE_SPE_COMP       	0
#endif

/* We need to mark all pages as being coherent if we're SMP or we
 * have a 74[45]x and an MPC107 host bridge.
 */
#if defined(CONFIG_SMP) || defined(CONFIG_MPC10X_BRIDGE)
#define CPU_FTR_COMMON                  CPU_FTR_NEED_COHERENT
#else
#define CPU_FTR_COMMON                  0
#endif

/* The powersave features NAP & DOZE seems to confuse BDI when
   debugging. So if a BDI is used, disable theses
 */
#ifndef CONFIG_BDI_SWITCH
#define CPU_FTR_MAYBE_CAN_DOZE	CPU_FTR_CAN_DOZE
#define CPU_FTR_MAYBE_CAN_NAP	CPU_FTR_CAN_NAP
#else
#define CPU_FTR_MAYBE_CAN_DOZE	0
#define CPU_FTR_MAYBE_CAN_NAP	0
#endif

struct cpu_spec	cpu_specs[] = {
#if CLASSIC_PPC
	{ 	/* 601 */
		.pvr_mask		= 0xffff0000,
		.pvr_value		= 0x00010000,
		.cpu_name		= "601",
		.cpu_features		= CPU_FTR_COMMON | CPU_FTR_601 |
			CPU_FTR_HPTE_TABLE,
		.cpu_user_features 	= COMMON_PPC | PPC_FEATURE_601_INSTR |
			PPC_FEATURE_UNIFIED_CACHE,
		.icache_bsize		= 32,
		.dcache_bsize		= 32,
		.cpu_setup		= __setup_cpu_601
	},
	{	/* 603 */
		.pvr_mask		= 0xffff0000,
		.pvr_value		= 0x00030000,
		.cpu_name		= "603",
		.cpu_features		= CPU_FTR_COMMON |
			CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_MAYBE_CAN_DOZE |
			CPU_FTR_USE_TB | CPU_FTR_MAYBE_CAN_NAP,
		.cpu_user_features	= COMMON_PPC,
		.icache_bsize		= 32,
		.dcache_bsize		= 32,
		.cpu_setup		= __setup_cpu_603
	},
	{	/* 603e */
		.pvr_mask		= 0xffff0000,
		.pvr_value		= 0x00060000,
		.cpu_name		= "603e",
		.cpu_features		= CPU_FTR_COMMON |
			CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_MAYBE_CAN_DOZE |
			CPU_FTR_USE_TB | CPU_FTR_MAYBE_CAN_NAP,
		.cpu_user_features	= COMMON_PPC,
		.icache_bsize		= 32,
		.dcache_bsize		= 32,
		.cpu_setup		= __setup_cpu_603
	},
	{	/* 603ev */
		.pvr_mask		= 0xffff0000,
		.pvr_value		= 0x00070000,
		.cpu_name		= "603ev",
		.cpu_features		= CPU_FTR_COMMON |
			CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_MAYBE_CAN_DOZE |
			CPU_FTR_USE_TB | CPU_FTR_MAYBE_CAN_NAP,
		.cpu_user_features	= COMMON_PPC