73 lines
1.6 KiB
C
73 lines
1.6 KiB
C
/*
|
|
* 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 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
|
|
*/
|
|
l2x0_init(l2cache_base, 0x0e050000, 0xc0000fff);
|
|
|
|
return 0;
|
|
}
|
|
early_initcall(omap_l2_cache_init);
|
|
#endif
|