1/* 2 * OMAP4 specific common source file. 3 * 4 * Copyright (C) 2010 Texas Instruments, Inc. 5 * Author: 6 * Santosh Shilimkar <santosh.shilimkar@ti.com> 7 * 8 * 9 * This program is free software,you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License version 2 as 11 * published by the Free Software Foundation. 12 */ 13 14#include <linux/kernel.h> 15#include <linux/init.h> 16#include <linux/io.h> 17#include <linux/platform_device.h> 18 19#include <asm/hardware/gic.h> 20#include <asm/hardware/cache-l2x0.h> 21 22#include <mach/hardware.h> 23#include <mach/omap4-common.h> 24 25#ifdef CONFIG_CACHE_L2X0 26void __iomem *l2cache_base; 27#endif 28 29void __iomem *gic_cpu_base_addr; 30void __iomem *gic_dist_base_addr; 31 32 33void __init gic_init_irq(void) 34{ 35 /* Static mapping, never released */ 36 gic_dist_base_addr = ioremap(OMAP44XX_GIC_DIST_BASE, SZ_4K); 37 BUG_ON(!gic_dist_base_addr); 38 gic_dist_init(0, gic_dist_base_addr, 29); 39 40 /* Static mapping, never released */ 41 gic_cpu_base_addr = ioremap(OMAP44XX_GIC_CPU_BASE, SZ_512); 42 BUG_ON(!gic_cpu_base_addr); 43 gic_cpu_init(0, gic_cpu_base_addr); 44} 45 46#ifdef CONFIG_CACHE_L2X0 47static int __init omap_l2_cache_init(void) 48{ 49 /* 50 * To avoid code running on other OMAPs in 51 * multi-omap builds 52 */ 53 if (!cpu_is_omap44xx()) 54 return -ENODEV; 55 56 /* Static mapping, never released */ 57 l2cache_base = ioremap(OMAP44XX_L2CACHE_BASE, SZ_4K); 58 BUG_ON(!l2cache_base); 59 60 /* Enable PL310 L2 Cache controller */ 61 omap_smc1(0x102, 0x1); 62 63 /* 64 * 32KB way size, 16-way associativity, 65 * parity disabled 66 */ 67 l2x0_init(l2cache_base, 0x0e050000, 0xc0000fff); 68 69 return 0; 70} 71early_initcall(omap_l2_cache_init); 72#endif 73