/* * arch/arm/mach-ks8695/cpu.c * * Copyright (C) 2006 Ben Dooks <ben@simtec.co.uk> * Copyright (C) 2006 Simtec Electronics * * KS8695 CPU support * * 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. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> #include <linux/io.h> #include <mach/hardware.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> #include <mach/regs-sys.h> #include <mach/regs-misc.h> static struct __initdata map_desc ks8695_io_desc[] = { { .virtual = KS8695_IO_VA, .pfn = __phys_to_pfn(KS8695_IO_PA), .length = KS8695_IO_SIZE, .type = MT_DEVICE, } }; static void __init ks8695_processor_info(void) { unsigned long id, rev; id = __raw_readl(KS8695_MISC_VA + KS8695_DID); rev = __raw_readl(KS8695_MISC_VA + KS8695_RID); printk("KS8695 ID=%04lx SubID=%02lx Revision=%02lx\n", (id & DID_ID), (rev & RID_SUBID), (rev & RID_REVISION)); } static unsigned int sysclk[8] = { 125000000, 100000000, 62500000, 50000000, 41700000, 33300000, 31300000, 25000000 }; static unsigned int cpuclk[8] = { 166000000, 166000000, 83000000, 83000000, 55300000, 55300000, 41500000, 41500000 }; static void __init ks8695_clock_info(void) { unsigned int scdc = __raw_readl(KS8695_SYS_VA + KS8695_CLKCON) & CLKCON_SCDC; printk("Clocks: System %u MHz, CPU %u MHz\n", sysclk[scdc] / 1000000, cpuclk[scdc] / 1000000); } void __init ks8695_map_io(void) { iotable_init(ks8695_io_desc, ARRAY_SIZE(ks8695_io_desc)); ks8695_processor_info(); ks8695_clock_info(); }