forked from Minki/linux
01539ba2a7
* 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (243 commits) omap2: Make OMAP2PLUS select OMAP_DM_TIMER OMAP4: hwmod data: Fix alignment and end of line in structurefields OMAP4: hwmod data: Move the DMA structures OMAP4: hwmod data: Move the smartreflex structures OMAP4: hwmod data: Fix missing SIDLE_SMART_WKUP in smartreflexsysc arm: omap: tusb6010: add name for MUSB IRQ arm: omap: craneboard: Add USB EHCI support omap2+: Initialize serial port for dynamic remuxing for n8x0 omap2+: Add struct omap_board_data and use it for platform level serial init omap2+: Allow hwmod state changes to mux pads based on the state changes omap2+: Add support for hwmod specific muxing of devices omap2+: Add omap_mux_get_by_name OMAP2: PM: fix compile error when !CONFIG_SUSPEND MAINTAINERS: OMAP: hwmod: update hwmod code, data maintainership OMAP4: Smartreflex framework extensions OMAP4: hwmod: Add inital data for smartreflex modules. OMAP4: PM: Program correct init voltages for scalable VDDs OMAP4: Adding voltage driver support OMAP4: Register voltage PMIC parameters with the voltage layer OMAP3: PM: Program correct init voltages for VDD1 and VDD2 ... Fix up trivial conflict in arch/arm/plat-omap/Kconfig
107 lines
2.4 KiB
C
107 lines
2.4 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_dist_base_addr;
|
|
|
|
|
|
void __init gic_init_irq(void)
|
|
{
|
|
void __iomem *gic_cpu_base;
|
|
|
|
/* Static mapping, never released */
|
|
gic_dist_base_addr = ioremap(OMAP44XX_GIC_DIST_BASE, SZ_4K);
|
|
BUG_ON(!gic_dist_base_addr);
|
|
|
|
/* Static mapping, never released */
|
|
gic_cpu_base = ioremap(OMAP44XX_GIC_CPU_BASE, SZ_512);
|
|
BUG_ON(!gic_cpu_base);
|
|
|
|
gic_init(0, 29, gic_dist_base_addr, gic_cpu_base);
|
|
}
|
|
|
|
#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)
|
|
{
|
|
u32 aux_ctrl = 0;
|
|
|
|
/*
|
|
* 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);
|
|
|
|
/*
|
|
* 16-way associativity, parity disabled
|
|
* Way size - 32KB (es1.0)
|
|
* Way size - 64KB (es2.0 +)
|
|
*/
|
|
aux_ctrl = ((1 << L2X0_AUX_CTRL_ASSOCIATIVITY_SHIFT) |
|
|
(0x1 << 25) |
|
|
(0x1 << L2X0_AUX_CTRL_NS_LOCKDOWN_SHIFT) |
|
|
(0x1 << L2X0_AUX_CTRL_NS_INT_CTRL_SHIFT));
|
|
|
|
if (omap_rev() == OMAP4430_REV_ES1_0) {
|
|
aux_ctrl |= 0x2 << L2X0_AUX_CTRL_WAY_SIZE_SHIFT;
|
|
} else {
|
|
aux_ctrl |= ((0x3 << L2X0_AUX_CTRL_WAY_SIZE_SHIFT) |
|
|
(1 << L2X0_AUX_CTRL_SHARE_OVERRIDE_SHIFT) |
|
|
(1 << L2X0_AUX_CTRL_DATA_PREFETCH_SHIFT) |
|
|
(1 << L2X0_AUX_CTRL_INSTR_PREFETCH_SHIFT) |
|
|
(1 << L2X0_AUX_CTRL_EARLY_BRESP_SHIFT));
|
|
}
|
|
if (omap_rev() != OMAP4430_REV_ES1_0)
|
|
omap_smc1(0x109, aux_ctrl);
|
|
|
|
/* Enable PL310 L2 Cache controller */
|
|
omap_smc1(0x102, 0x1);
|
|
|
|
l2x0_init(l2cache_base, aux_ctrl, L2X0_AUX_CTRL_MASK);
|
|
|
|
/*
|
|
* 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
|