193 lines
5.9 KiB
C
193 lines
5.9 KiB
C
|
/*
|
||
|
|
* Common io.c file
|
||
|
|
* This file is created by Russell King <rmk+kernel@arm.linux.org.uk>
|
||
|
|
*
|
||
|
|
* Copyright (C) 2009 Texas Instruments
|
||
|
|
* Added OMAP4 support - 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/module.h>
|
||
|
|
#include <linux/io.h>
|
||
|
|
#include <linux/mm.h>
|
||
|
|
|
||
|
|
#include <mach/omap730.h>
|
||
|
|
#include <mach/omap1510.h>
|
||
|
|
#include <mach/omap16xx.h>
|
||
|
|
#include <mach/omap24xx.h>
|
||
|
|
#include <mach/omap34xx.h>
|
||
|
|
#include <mach/omap44xx.h>
|
||
|
|
|
||
|
|
#define BETWEEN(p,st,sz) ((p) >= (st) && (p) < ((st) + (sz)))
|
||
|
|
#define XLATE(p,pst,vst) ((void __iomem *)((p) - (pst) + (vst)))
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Intercept ioremap() requests for addresses in our fixed mapping regions.
|
||
|
|
*/
|
||
|
|
void __iomem *omap_ioremap(unsigned long p, size_t size, unsigned int type)
|
||
|
|
{
|
||
|
|
#ifdef CONFIG_ARCH_OMAP1
|
||
|
|
if (cpu_class_is_omap1()) {
|
||
|
|
if (BETWEEN(p, OMAP1_IO_PHYS, OMAP1_IO_SIZE))
|
||
|
|
return XLATE(p, OMAP1_IO_PHYS, OMAP1_IO_VIRT);
|
||
|
|
}
|
||
|
|
if (cpu_is_omap730()) {
|
||
|
|
if (BETWEEN(p, OMAP730_DSP_BASE, OMAP730_DSP_SIZE))
|
||
|
|
return XLATE(p, OMAP730_DSP_BASE, OMAP730_DSP_START);
|
||
|
|
|
||
|
|
if (BETWEEN(p, OMAP730_DSPREG_BASE, OMAP730_DSPREG_SIZE))
|
||
|
|
return XLATE(p, OMAP730_DSPREG_BASE,
|
||
|
|
OMAP730_DSPREG_START);
|
||
|
|
}
|
||
|
|
if (cpu_is_omap15xx()) {
|
||
|
|
if (BETWEEN(p, OMAP1510_DSP_BASE, OMAP1510_DSP_SIZE))
|
||
|
|
return XLATE(p, OMAP1510_DSP_BASE, OMAP1510_DSP_START);
|
||
|
|
|
||
|
|
if (BETWEEN(p, OMAP1510_DSPREG_BASE, OMAP1510_DSPREG_SIZE))
|
||
|
|
return XLATE(p, OMAP1510_DSPREG_BASE,
|
||
|
|
OMAP1510_DSPREG_START);
|
||
|
|
}
|
||
|
|
if (cpu_is_omap16xx()) {
|
||
|
|
if (BETWEEN(p, OMAP16XX_DSP_BASE, OMAP16XX_DSP_SIZE))
|
||
|
|
return XLATE(p, OMAP16XX_DSP_BASE, OMAP16XX_DSP_START);
|
||
|
|
|
||
|
|
if (BETWEEN(p, OMAP16XX_DSPREG_BASE, OMAP16XX_DSPREG_SIZE))
|
||
|
|
return XLATE(p, OMAP16XX_DSPREG_BASE,
|
||
|
|
OMAP16XX_DSPREG_START);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
#ifdef CONFIG_ARCH_OMAP2
|
||
|
|
if (cpu_is_omap24xx()) {
|
||
|
|
if (BETWEEN(p, L3_24XX_PHYS, L3_24XX_SIZE))
|
||
|
|
return XLATE(p, L3_24XX_PHYS, L3_24XX_VIRT);
|
||
|
|
if (BETWEEN(p, L4_24XX_PHYS, L4_24XX_SIZE))
|
||
|
|
return XLATE(p, L4_24XX_PHYS, L4_24XX_VIRT);
|
||
|
|
}
|
||
|
|
if (cpu_is_omap2420()) {
|
||
|
|
if (BETWEEN(p, DSP_MEM_24XX_PHYS, DSP_MEM_24XX_SIZE))
|
||
|
|
return XLATE(p, DSP_MEM_24XX_PHYS, DSP_MEM_24XX_VIRT);
|
||
|
|
if (BETWEEN(p, DSP_IPI_24XX_PHYS, DSP_IPI_24XX_SIZE))
|
||
|
|
return XLATE(p, DSP_IPI_24XX_PHYS, DSP_IPI_24XX_SIZE);
|
||
|
|
if (BETWEEN(p, DSP_MMU_24XX_PHYS, DSP_MMU_24XX_SIZE))
|
||
|
|
return XLATE(p, DSP_MMU_24XX_PHYS, DSP_MMU_24XX_VIRT);
|
||
|
|
}
|
||
|
|
if (cpu_is_omap2430()) {
|
||
|
|
if (BETWEEN(p, L4_WK_243X_PHYS, L4_WK_243X_SIZE))
|
||
|
|
return XLATE(p, L4_WK_243X_PHYS, L4_WK_243X_VIRT);
|
||
|
|
if (BETWEEN(p, OMAP243X_GPMC_PHYS, OMAP243X_GPMC_SIZE))
|
||
|
|
return XLATE(p, OMAP243X_GPMC_PHYS, OMAP243X_GPMC_VIRT);
|
||
|
|
if (BETWEEN(p, OMAP243X_SDRC_PHYS, OMAP243X_SDRC_SIZE))
|
||
|
|
return XLATE(p, OMAP243X_SDRC_PHYS, OMAP243X_SDRC_VIRT);
|
||
|
|
if (BETWEEN(p, OMAP243X_SMS_PHYS, OMAP243X_SMS_SIZE))
|
||
|
|
return XLATE(p, OMAP243X_SMS_PHYS, OMAP243X_SMS_VIRT);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
#ifdef CONFIG_ARCH_OMAP3
|
||
|
|
if (cpu_is_omap34xx()) {
|
||
|
|
if (BETWEEN(p, L3_34XX_PHYS, L3_34XX_SIZE))
|
||
|
|
return XLATE(p, L3_34XX_PHYS, L3_34XX_VIRT);
|
||
|
|
if (BETWEEN(p, L4_34XX_PHYS, L4_34XX_SIZE))
|
||
|
|
return XLATE(p, L4_34XX_PHYS, L4_34XX_VIRT);
|
||
|
|
if (BETWEEN(p, L4_WK_34XX_PHYS, L4_WK_34XX_SIZE))
|
||
|
|
return XLATE(p, L4_WK_34XX_PHYS, L4_WK_34XX_VIRT);
|
||
|
|
if (BETWEEN(p, OMAP34XX_GPMC_PHYS, OMAP34XX_GPMC_SIZE))
|
||
|
|
return XLATE(p, OMAP34XX_GPMC_PHYS, OMAP34XX_GPMC_VIRT);
|
||
|
|
if (BETWEEN(p, OMAP343X_SMS_PHYS, OMAP343X_SMS_SIZE))
|
||
|
|
return XLATE(p, OMAP343X_SMS_PHYS, OMAP343X_SMS_VIRT);
|
||
|
|
if (BETWEEN(p, OMAP343X_SDRC_PHYS, OMAP343X_SDRC_SIZE))
|
||
|
|
return XLATE(p, OMAP343X_SDRC_PHYS, OMAP343X_SDRC_VIRT);
|
||
|
|
if (BETWEEN(p, L4_PER_34XX_PHYS, L4_PER_34XX_SIZE))
|
||
|
|
return XLATE(p, L4_PER_34XX_PHYS, L4_PER_34XX_VIRT);
|
||
|
|
if (BETWEEN(p, L4_EMU_34XX_PHYS, L4_EMU_34XX_SIZE))
|
||
|
|
return XLATE(p, L4_EMU_34XX_PHYS, L4_EMU_34XX_VIRT);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
#ifdef CONFIG_ARCH_OMAP4
|
||
|
|
if (cpu_is_omap44xx()) {
|
||
|
|
if (BETWEEN(p, L3_44XX_PHYS, L3_44XX_SIZE))
|
||
|
|
return XLATE(p, L3_44XX_PHYS, L3_44XX_VIRT);
|
||
|
|
if (BETWEEN(p, L4_44XX_PHYS, L4_44XX_SIZE))
|
||
|
|
return XLATE(p, L4_44XX_PHYS, L4_44XX_VIRT);
|
||
|
|
if (BETWEEN(p, L4_WK_44XX_PHYS, L4_WK_44XX_SIZE))
|
||
|
|
return XLATE(p, L4_WK_44XX_PHYS, L4_WK_44XX_VIRT);
|
||
|
|
if (BETWEEN(p, OMAP44XX_GPMC_PHYS, OMAP44XX_GPMC_SIZE))
|
||
|
|
return XLATE(p, OMAP44XX_GPMC_PHYS, OMAP44XX_GPMC_VIRT);
|
||
|
|
if (BETWEEN(p, L4_PER_44XX_PHYS, L4_PER_44XX_SIZE))
|
||
|
|
return XLATE(p, L4_PER_44XX_PHYS, L4_PER_44XX_VIRT);
|
||
|
|
if (BETWEEN(p, L4_EMU_44XX_PHYS, L4_EMU_44XX_SIZE))
|
||
|
|
return XLATE(p, L4_EMU_44XX_PHYS, L4_EMU_44XX_VIRT);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
return __arm_ioremap(p, size, type);
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL(omap_ioremap);
|
||
|
|
|
||
|
|
void omap_iounmap(volatile void __iomem *addr)
|
||
|
|
{
|
||
|
|
unsigned long virt = (unsigned long)addr;
|
||
|
|
|
||
|
|
if (virt >= VMALLOC_START && virt < VMALLOC_END)
|
||
|
|
__iounmap(addr);
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL(omap_iounmap);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* NOTE: Please use ioremap + __raw_read/write where possible instead of these
|
||
|
|
*/
|
||
|
|
|
||
|
|
u8 omap_readb(u32 pa)
|
||
|
|
{
|
||
|
|
if (cpu_class_is_omap1())
|
||
|
|
return __raw_readb(OMAP1_IO_ADDRESS(pa));
|
||
|
|
else
|
||
|
|
return __raw_readb(OMAP2_IO_ADDRESS(pa));
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL(omap_readb);
|
||
|
|
|
||
|
|
u16 omap_readw(u32 pa)
|
||
|
|
{
|
||
|
|
if (cpu_class_is_omap1())
|
||
|
|
return __raw_readw(OMAP1_IO_ADDRESS(pa));
|
||
|
|
else
|
||
|
|
return __raw_readw(OMAP2_IO_ADDRESS(pa));
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL(omap_readw);
|
||
|
|
|
||
|
|
u32 omap_readl(u32 pa)
|
||
|
|
{
|
||
|
|
if (cpu_class_is_omap1())
|
||
|
|
return __raw_readl(OMAP1_IO_ADDRESS(pa));
|
||
|
|
else
|
||
|
|
return __raw_readl(OMAP2_IO_ADDRESS(pa));
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL(omap_readl);
|
||
|
|
|
||
|
|
void omap_writeb(u8 v, u32 pa)
|
||
|
|
{
|
||
|
|
if (cpu_class_is_omap1())
|
||
|
|
__raw_writeb(v, OMAP1_IO_ADDRESS(pa));
|
||
|
|
else
|
||
|
|
__raw_writeb(v, OMAP2_IO_ADDRESS(pa));
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL(omap_writeb);
|
||
|
|
|
||
|
|
void omap_writew(u16 v, u32 pa)
|
||
|
|
{
|
||
|
|
if (cpu_class_is_omap1())
|
||
|
|
__raw_writew(v, OMAP1_IO_ADDRESS(pa));
|
||
|
|
else
|
||
|
|
__raw_writew(v, OMAP2_IO_ADDRESS(pa));
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL(omap_writew);
|
||
|
|
|
||
|
|
void omap_writel(u32 v, u32 pa)
|
||
|
|
{
|
||
|
|
if (cpu_class_is_omap1())
|
||
|
|
__raw_writel(v, OMAP1_IO_ADDRESS(pa));
|
||
|
|
else
|
||
|
|
__raw_writel(v, OMAP2_IO_ADDRESS(pa));
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL(omap_writel);
|