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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 __iomem *sar_ram_base;
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 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);
/*
* 32KB way size, 16-way associativity,
* parity disabled
*/
if (omap_rev() == OMAP4430_REV_ES2_0)
l2x0_init(l2cache_base, 0x0e070000, 0xc0000fff);
else
l2x0_init(l2cache_base, 0x0e050000, 0xc0000fff);
return 0;
}
early_initcall(omap_l2_cache_init);
#endif
/*
* SAR RAM used to save and restore the HW
* context in low power modes
*/
static int __init omap4_sar_ram_init(void)
{
/*
* To avoid code running on other OMAPs in
* multi-omap builds
*/
if (!cpu_is_omap44xx())
return -ENODEV;
/* Static mapping, never released */
sar_ram_base = ioremap(OMAP44XX_SAR_RAM_BASE, SZ_8K);
BUG_ON(!sar_ram_base);
return 0;
}
early_initcall(omap4_sar_ram_init);
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