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/* * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu> * Copyright (C) 2007-2009 PetaLogix * Copyright (C) 2007 John Williams <john.williams@petalogix.com> * * 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. */ #include <linux/clk.h>#include <linux/init.h>#include <asm/cpuinfo.h>#include <asm/pvr.h> const struct cpu_ver_key cpu_ver_lookup[] = {	/* These key value are as per MBV field in PVR0 */	{"5.00.a", 0x01},	{"5.00.b", 0x02},	{"5.00.c", 0x03},	{"6.00.a", 0x04},	{"6.00.b", 0x06},	{"7.00.a", 0x05},	{"7.00.b", 0x07},	{"7.10.a", 0x08},	{"7.10.b", 0x09},	{"7.10.c", 0x0a},	{"7.10.d", 0x0b},	{"7.20.a", 0x0c},	{"7.20.b", 0x0d},	{"7.20.c", 0x0e},	{"7.20.d", 0x0f},	{"7.30.a", 0x10},	{"7.30.b", 0x11},	{"8.00.a", 0x12},	{"8.00.b", 0x13},	{"8.10.a", 0x14},	{"8.20.a", 0x15},	{"8.20.b", 0x16},	{"8.30.a", 0x17},	{"8.40.a", 0x18},	{"8.40.b", 0x19},	{"8.50.a", 0x1a},	{"8.50.b", 0x1c},	{"8.50.c", 0x1e},	{"9.0", 0x1b},	{"9.1", 0x1d},	{"9.2", 0x1f},	{"9.3", 0x20},	{"9.4", 0x21},	{"9.5", 0x22},	{"9.6", 0x23},	{"10.0", 0x24},	{"11.0", 0x25},	{NULL, 0},}; /* * FIXME Not sure if the actual key is defined by Xilinx in the PVR */const struct family_string_key family_string_lookup[] = {	{"virtex2", 0x4},	{"virtex2pro", 0x5},	{"spartan3", 0x6},	{"virtex4", 0x7},	{"virtex5", 0x8},	{"spartan3e", 0x9},	{"spartan3a", 0xa},	{"spartan3an", 0xb},	{"spartan3adsp", 0xc},	{"spartan6", 0xd},	{"virtex6", 0xe},	{"virtex7", 0xf},	/* FIXME There is no key code defined for spartan2 */	{"spartan2", 0xf0},	{"kintex7", 0x10},	{"artix7", 0x11},	{"zynq7000", 0x12},	{"UltraScale Virtex", 0x13},	{"UltraScale Kintex", 0x14},	{"UltraScale+ Zynq", 0x15},	{"UltraScale+ Virtex", 0x16},	{"UltraScale+ Kintex", 0x17},	{"Spartan7", 0x18},	{NULL, 0},}; struct cpuinfo cpuinfo;static struct device_node *cpu; void __init setup_cpuinfo(void){	cpu = of_get_cpu_node(0, NULL);	if (!cpu)		pr_err("You don't have cpu or are missing cpu reg property!!!\n"); 	pr_info("%s: initialising\n", __func__); 	switch (cpu_has_pvr()) {	case 0:		pr_warn("%s: No PVR support. Using static CPU info from FDT\n",			__func__);		set_cpuinfo_static(&cpuinfo, cpu);		break;/* FIXME I found weird behavior with MB 7.00.a/b 7.10.a * please do not use FULL PVR with MMU */	case 1:		pr_info("%s: Using full CPU PVR support\n",			__func__);		set_cpuinfo_static(&cpuinfo, cpu);		set_cpuinfo_pvr_full(&cpuinfo, cpu);		break;	default:		pr_warn("%s: Unsupported PVR setting\n", __func__);		set_cpuinfo_static(&cpuinfo, cpu);	} 	if (cpuinfo.mmu_privins)		pr_warn("%s: Stream instructions enabled"			" - USERSPACE CAN LOCK THIS KERNEL!\n", __func__); 	of_node_put(cpu);} void __init setup_cpuinfo_clk(void){	struct clk *clk; 	clk = of_clk_get(cpu, 0);	if (IS_ERR(clk)) {		pr_err("ERROR: CPU CCF input clock not found\n");		/* take timebase-frequency from DTS */		cpuinfo.cpu_clock_freq = fcpu(cpu, "timebase-frequency");	} else {		cpuinfo.cpu_clock_freq = clk_get_rate(clk);	} 	if (!cpuinfo.cpu_clock_freq) {		pr_err("ERROR: CPU clock frequency not setup\n");		BUG();	}}