1/* 2 * arch/mips/au1000/common/cputable.c 3 * 4 * Copyright (C) 2004 Dan Malek (dan@embeddededge.com) 5 * Copied from PowerPC and updated for Alchemy Au1xxx processors. 6 * 7 * Copyright (C) 2001 Ben. Herrenschmidt (benh@kernel.crashing.org) 8 * 9 * This program is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU General Public License 11 * as published by the Free Software Foundation; either version 12 * 2 of the License, or (at your option) any later version. 13 */ 14#include <linux/string.h> 15#include <linux/sched.h> 16#include <linux/threads.h> 17#include <linux/init.h> 18#include <asm/mach-au1x00/au1000.h> 19 20struct cpu_spec* cur_cpu_spec[NR_CPUS]; 21 22/* With some thought, we can probably use the mask to reduce the 23 * size of the table. 24 */ 25struct cpu_spec cpu_specs[] = { 26 { 0xffffffff, 0x00030100, "Au1000 DA", 1, 0 }, 27 { 0xffffffff, 0x00030201, "Au1000 HA", 1, 0 }, 28 { 0xffffffff, 0x00030202, "Au1000 HB", 1, 0 }, 29 { 0xffffffff, 0x00030203, "Au1000 HC", 1, 1 }, 30 { 0xffffffff, 0x00030204, "Au1000 HD", 1, 1 }, 31 { 0xffffffff, 0x01030200, "Au1500 AB", 1, 1 }, 32 { 0xffffffff, 0x01030201, "Au1500 AC", 0, 1 }, 33 { 0xffffffff, 0x01030202, "Au1500 AD", 0, 1 }, 34 { 0xffffffff, 0x02030200, "Au1100 AB", 1, 1 }, 35 { 0xffffffff, 0x02030201, "Au1100 BA", 1, 1 }, 36 { 0xffffffff, 0x02030202, "Au1100 BC", 1, 1 }, 37 { 0xffffffff, 0x02030203, "Au1100 BD", 0, 1 }, 38 { 0xffffffff, 0x02030204, "Au1100 BE", 0, 1 }, 39 { 0xffffffff, 0x03030200, "Au1550 AA", 0, 1 }, 40 { 0xffffffff, 0x04030200, "Au1200 AB", 0, 0 }, 41 { 0xffffffff, 0x04030201, "Au1200 AC", 1, 0 }, 42 { 0x00000000, 0x00000000, "Unknown Au1xxx", 1, 0 }, 43}; 44 45void 46set_cpuspec(void) 47{ 48 struct cpu_spec *sp; 49 u32 prid; 50 51 prid = read_c0_prid(); 52 sp = cpu_specs; 53 while ((prid & sp->prid_mask) != sp->prid_value) 54 sp++; 55 cur_cpu_spec[0] = sp; 56} 57