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- /*
- * OMAP4 specific common source file.
- *
- * Copyright (C) 2010 Texas Instruments, Inc.
- * Author:
- * Santosh Shilimkar <santosh.shilimkar@ti.com>
- *
- *
- * This program is free software,you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
- #include <linux/kernel.h>
- #include <linux/init.h>
- #include <linux/io.h>
- #include <linux/platform_device.h>
- #include <asm/hardware/gic.h>
- #include <asm/hardware/cache-l2x0.h>
- #include <mach/hardware.h>
- #include <mach/omap4-common.h>
- #ifdef CONFIG_CACHE_L2X0
- void __iomem *l2cache_base;
- #endif
- void __iomem *gic_cpu_base_addr;
- void __iomem *gic_dist_base_addr;
- void __init gic_init_irq(void)
- {
- /* Static mapping, never released */
- gic_dist_base_addr = ioremap(OMAP44XX_GIC_DIST_BASE, SZ_4K);
- BUG_ON(!gic_dist_base_addr);
- gic_dist_init(0, gic_dist_base_addr, 29);
- /* Static mapping, never released */
- gic_cpu_base_addr = ioremap(OMAP44XX_GIC_CPU_BASE, SZ_512);
- BUG_ON(!gic_cpu_base_addr);
- gic_cpu_init(0, gic_cpu_base_addr);
- }
- #ifdef CONFIG_CACHE_L2X0
- static void omap4_l2x0_disable(void)
- {
- /* Disable PL310 L2 Cache controller */
- omap_smc1(0x102, 0x0);
- }
- static int __init omap_l2_cache_init(void)
- {
- /*
- * To avoid code running on other OMAPs in
- * multi-omap builds
- */
- if (!cpu_is_omap44xx())
- return -ENODEV;
- /* Static mapping, never released */
- l2cache_base = ioremap(OMAP44XX_L2CACHE_BASE, SZ_4K);
- BUG_ON(!l2cache_base);
- /* Enable PL310 L2 Cache controller */
- omap_smc1(0x102, 0x1);
- /*
- * 16-way associativity, parity disabled
- * Way size - 32KB (es1.0)
- * Way size - 64KB (es2.0 +)
- */
- if (omap_rev() == OMAP4430_REV_ES1_0)
- l2x0_init(l2cache_base, 0x0e050000, 0xc0000fff);
- else
- l2x0_init(l2cache_base, 0x0e070000, 0xc0000fff);
- /*
- * Override default outer_cache.disable with a OMAP4
- * specific one
- */
- outer_cache.disable = omap4_l2x0_disable;
- return 0;
- }
- early_initcall(omap_l2_cache_init);
- #endif
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