2 * OMAP4 specific common source file.
4 * Copyright (C) 2010 Texas Instruments, Inc.
6 * Santosh Shilimkar <santosh.shilimkar@ti.com>
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.
14 #include <linux/kernel.h>
15 #include <linux/init.h>
17 #include <linux/platform_device.h>
19 #include <asm/hardware/gic.h>
20 #include <asm/hardware/cache-l2x0.h>
22 #include <mach/hardware.h>
23 #include <mach/omap4-common.h>
25 #ifdef CONFIG_CACHE_L2X0
26 void __iomem *l2cache_base;
29 void __iomem *gic_dist_base_addr;
32 void __init gic_init_irq(void)
34 void __iomem *gic_cpu_base;
36 /* Static mapping, never released */
37 gic_dist_base_addr = ioremap(OMAP44XX_GIC_DIST_BASE, SZ_4K);
38 BUG_ON(!gic_dist_base_addr);
40 /* Static mapping, never released */
41 gic_cpu_base = ioremap(OMAP44XX_GIC_CPU_BASE, SZ_512);
42 BUG_ON(!gic_cpu_base);
44 gic_init(0, 29, gic_dist_base_addr, gic_cpu_base);
47 #ifdef CONFIG_CACHE_L2X0
49 static void omap4_l2x0_disable(void)
51 /* Disable PL310 L2 Cache controller */
52 omap_smc1(0x102, 0x0);
55 static int __init omap_l2_cache_init(void)
58 * To avoid code running on other OMAPs in
61 if (!cpu_is_omap44xx())
64 /* Static mapping, never released */
65 l2cache_base = ioremap(OMAP44XX_L2CACHE_BASE, SZ_4K);
66 BUG_ON(!l2cache_base);
68 /* Enable PL310 L2 Cache controller */
69 omap_smc1(0x102, 0x1);
72 * 16-way associativity, parity disabled
73 * Way size - 32KB (es1.0)
74 * Way size - 64KB (es2.0 +)
76 if (omap_rev() == OMAP4430_REV_ES1_0)
77 l2x0_init(l2cache_base, 0x0e050000, 0xc0000fff);
79 l2x0_init(l2cache_base, 0x0e070000, 0xc0000fff);
82 * Override default outer_cache.disable with a OMAP4
85 outer_cache.disable = omap4_l2x0_disable;
89 early_initcall(omap_l2_cache_init);