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/*
* Generic support for queying CPU info
*
* Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
* Copyright (C) 2007-2009 PetaLogix
* Copyright (C) 2007 John Williams <jwilliams@itee.uq.edu.au>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*/
#ifndef _ASM_MICROBLAZE_CPUINFO_H
#define _ASM_MICROBLAZE_CPUINFO_H
#include <linux/of.h>
/* CPU Version and FPGA Family code conversion table type */
struct cpu_ver_key {
const char *s;
const unsigned k;
};
extern const struct cpu_ver_key cpu_ver_lookup[];
struct family_string_key {
const char *s;
const unsigned k;
};
extern const struct family_string_key family_string_lookup[];
struct cpuinfo {
/* Core CPU configuration */
u32 use_instr;
u32 use_mult;
u32 use_fpu;
u32 use_exc;
u32 ver_code;
u32 mmu;
u32 mmu_privins;
u32 endian;
/* CPU caches */
u32 use_icache;
u32 icache_tagbits;
u32 icache_write;
u32 icache_line_length;
u32 icache_size;
unsigned long icache_base;
unsigned long icache_high;
u32 use_dcache;
u32 dcache_tagbits;
u32 dcache_write;
u32 dcache_line_length;
u32 dcache_size;
u32 dcache_wb;
unsigned long dcache_base;
unsigned long dcache_high;
/* Bus connections */
u32 use_dopb;
u32 use_iopb;
u32 use_dlmb;
u32 use_ilmb;
u32 num_fsl;
/* CPU interrupt line info */
u32 irq_edge;
u32 irq_positive;
u32 area_optimised;
/* HW debug support */
u32 hw_debug;
u32 num_pc_brk;
u32 num_rd_brk;
u32 num_wr_brk;
u32 cpu_clock_freq; /* store real freq of cpu */
/* FPGA family */
u32 fpga_family_code;
/* User define */
u32 pvr_user1;
u32 pvr_user2;
};
extern struct cpuinfo cpuinfo;
/* fwd declarations of the various CPUinfo populators */
void setup_cpuinfo(void);
void setup_cpuinfo_clk(void);
void set_cpuinfo_static(struct cpuinfo *ci, struct device_node *cpu);
void set_cpuinfo_pvr_full(struct cpuinfo *ci, struct device_node *cpu);
static inline unsigned int fcpu(struct device_node *cpu, char *n)
{
u32 val = 0;
of_property_read_u32(cpu, n, &val);
return val;
}
#endif /* _ASM_MICROBLAZE_CPUINFO_H */