2019-06-04 08:11:33 +00:00
|
|
|
// SPDX-License-Identifier: GPL-2.0-only
|
2005-07-10 18:58:12 +00:00
|
|
|
/*
|
|
|
|
* linux/arch/arm/mach-omap1/io.c
|
|
|
|
*
|
|
|
|
* OMAP1 I/O mapping code
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <linux/module.h>
|
|
|
|
#include <linux/kernel.h>
|
|
|
|
#include <linux/init.h>
|
2008-09-06 11:10:45 +00:00
|
|
|
#include <linux/io.h>
|
2005-07-10 18:58:12 +00:00
|
|
|
|
2006-02-08 22:06:45 +00:00
|
|
|
#include <asm/tlb.h>
|
2005-07-10 18:58:12 +00:00
|
|
|
#include <asm/mach/map.h>
|
2012-02-24 18:34:34 +00:00
|
|
|
|
2012-09-19 17:46:56 +00:00
|
|
|
#include <mach/mux.h>
|
2012-10-02 20:39:28 +00:00
|
|
|
#include <mach/tc.h>
|
2012-11-30 16:41:50 +00:00
|
|
|
#include <linux/omap-dma.h>
|
2005-07-10 18:58:12 +00:00
|
|
|
|
2012-02-24 18:34:34 +00:00
|
|
|
#include "iomap.h"
|
|
|
|
#include "common.h"
|
2009-12-08 23:29:38 +00:00
|
|
|
#include "clock.h"
|
|
|
|
|
2005-07-10 18:58:12 +00:00
|
|
|
/*
|
|
|
|
* The machine specific code may provide the extra mapping besides the
|
|
|
|
* default mapping provided here.
|
|
|
|
*/
|
|
|
|
static struct map_desc omap_io_desc[] __initdata = {
|
2005-10-28 14:19:00 +00:00
|
|
|
{
|
2009-08-28 17:50:37 +00:00
|
|
|
.virtual = OMAP1_IO_VIRT,
|
|
|
|
.pfn = __phys_to_pfn(OMAP1_IO_PHYS),
|
|
|
|
.length = OMAP1_IO_SIZE,
|
2005-10-28 14:19:00 +00:00
|
|
|
.type = MT_DEVICE
|
|
|
|
}
|
2005-07-10 18:58:12 +00:00
|
|
|
};
|
|
|
|
|
2009-09-22 04:58:08 +00:00
|
|
|
#if defined (CONFIG_ARCH_OMAP730) || defined (CONFIG_ARCH_OMAP850)
|
2009-09-22 09:02:58 +00:00
|
|
|
static struct map_desc omap7xx_io_desc[] __initdata = {
|
2005-10-28 14:19:00 +00:00
|
|
|
{
|
2009-09-22 06:34:13 +00:00
|
|
|
.virtual = OMAP7XX_DSP_BASE,
|
|
|
|
.pfn = __phys_to_pfn(OMAP7XX_DSP_START),
|
|
|
|
.length = OMAP7XX_DSP_SIZE,
|
2005-10-28 14:19:00 +00:00
|
|
|
.type = MT_DEVICE
|
|
|
|
}, {
|
2009-09-22 06:34:13 +00:00
|
|
|
.virtual = OMAP7XX_DSPREG_BASE,
|
|
|
|
.pfn = __phys_to_pfn(OMAP7XX_DSPREG_START),
|
|
|
|
.length = OMAP7XX_DSPREG_SIZE,
|
2005-10-28 14:19:00 +00:00
|
|
|
.type = MT_DEVICE
|
|
|
|
}
|
2005-07-10 18:58:12 +00:00
|
|
|
};
|
|
|
|
#endif
|
|
|
|
|
2005-11-10 14:26:48 +00:00
|
|
|
#ifdef CONFIG_ARCH_OMAP15XX
|
2005-07-10 18:58:12 +00:00
|
|
|
static struct map_desc omap1510_io_desc[] __initdata = {
|
2005-10-28 14:19:00 +00:00
|
|
|
{
|
|
|
|
.virtual = OMAP1510_DSP_BASE,
|
|
|
|
.pfn = __phys_to_pfn(OMAP1510_DSP_START),
|
|
|
|
.length = OMAP1510_DSP_SIZE,
|
|
|
|
.type = MT_DEVICE
|
|
|
|
}, {
|
|
|
|
.virtual = OMAP1510_DSPREG_BASE,
|
|
|
|
.pfn = __phys_to_pfn(OMAP1510_DSPREG_START),
|
|
|
|
.length = OMAP1510_DSPREG_SIZE,
|
|
|
|
.type = MT_DEVICE
|
|
|
|
}
|
2005-07-10 18:58:12 +00:00
|
|
|
};
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#if defined(CONFIG_ARCH_OMAP16XX)
|
2005-09-08 22:07:38 +00:00
|
|
|
static struct map_desc omap16xx_io_desc[] __initdata = {
|
2005-10-28 14:19:00 +00:00
|
|
|
{
|
|
|
|
.virtual = OMAP16XX_DSP_BASE,
|
|
|
|
.pfn = __phys_to_pfn(OMAP16XX_DSP_START),
|
|
|
|
.length = OMAP16XX_DSP_SIZE,
|
|
|
|
.type = MT_DEVICE
|
|
|
|
}, {
|
|
|
|
.virtual = OMAP16XX_DSPREG_BASE,
|
|
|
|
.pfn = __phys_to_pfn(OMAP16XX_DSPREG_START),
|
|
|
|
.length = OMAP16XX_DSPREG_SIZE,
|
|
|
|
.type = MT_DEVICE
|
|
|
|
}
|
2005-07-10 18:58:12 +00:00
|
|
|
};
|
|
|
|
#endif
|
|
|
|
|
2006-02-08 22:06:45 +00:00
|
|
|
/*
|
2011-10-05 22:14:02 +00:00
|
|
|
* Maps common IO regions for omap1
|
2006-02-08 22:06:45 +00:00
|
|
|
*/
|
2011-10-05 22:14:02 +00:00
|
|
|
static void __init omap1_map_common_io(void)
|
2005-07-10 18:58:12 +00:00
|
|
|
{
|
|
|
|
iotable_init(omap_io_desc, ARRAY_SIZE(omap_io_desc));
|
2011-10-05 22:14:02 +00:00
|
|
|
}
|
2005-07-10 18:58:12 +00:00
|
|
|
|
2009-09-22 04:58:08 +00:00
|
|
|
#if defined (CONFIG_ARCH_OMAP730) || defined (CONFIG_ARCH_OMAP850)
|
2011-10-05 22:14:02 +00:00
|
|
|
void __init omap7xx_map_io(void)
|
|
|
|
{
|
|
|
|
omap1_map_common_io();
|
|
|
|
iotable_init(omap7xx_io_desc, ARRAY_SIZE(omap7xx_io_desc));
|
|
|
|
}
|
2005-07-10 18:58:12 +00:00
|
|
|
#endif
|
2011-10-05 22:14:02 +00:00
|
|
|
|
2005-11-10 14:26:48 +00:00
|
|
|
#ifdef CONFIG_ARCH_OMAP15XX
|
2011-10-05 22:14:02 +00:00
|
|
|
void __init omap15xx_map_io(void)
|
|
|
|
{
|
|
|
|
omap1_map_common_io();
|
|
|
|
iotable_init(omap1510_io_desc, ARRAY_SIZE(omap1510_io_desc));
|
|
|
|
}
|
2005-07-10 18:58:12 +00:00
|
|
|
#endif
|
|
|
|
|
2011-10-05 22:14:02 +00:00
|
|
|
#if defined(CONFIG_ARCH_OMAP16XX)
|
|
|
|
void __init omap16xx_map_io(void)
|
|
|
|
{
|
|
|
|
omap1_map_common_io();
|
|
|
|
iotable_init(omap16xx_io_desc, ARRAY_SIZE(omap16xx_io_desc));
|
2006-02-08 22:06:45 +00:00
|
|
|
}
|
2011-10-05 22:14:02 +00:00
|
|
|
#endif
|
2005-09-08 22:07:38 +00:00
|
|
|
|
2006-02-08 22:06:45 +00:00
|
|
|
/*
|
2011-10-05 22:14:02 +00:00
|
|
|
* Common low-level hardware init for omap1.
|
2006-02-08 22:06:45 +00:00
|
|
|
*/
|
2012-03-06 00:11:04 +00:00
|
|
|
void __init omap1_init_early(void)
|
2006-02-08 22:06:45 +00:00
|
|
|
{
|
2011-10-05 22:14:02 +00:00
|
|
|
omap_check_revision();
|
|
|
|
|
2005-07-10 18:58:12 +00:00
|
|
|
/* REVISIT: Refer to OMAP5910 Errata, Advisory SYS_1: "Timeout Abort
|
|
|
|
* on a Posted Write in the TIPB Bridge".
|
|
|
|
*/
|
|
|
|
omap_writew(0x0, MPU_PUBLIC_TIPB_CNTL);
|
|
|
|
omap_writew(0x0, MPU_PRIVATE_TIPB_CNTL);
|
|
|
|
|
|
|
|
/* Must init clocks early to assure that timer interrupt works
|
|
|
|
*/
|
2005-11-10 14:26:48 +00:00
|
|
|
omap1_clk_init();
|
2006-02-08 22:06:45 +00:00
|
|
|
omap1_mux_init();
|
2005-07-10 18:58:12 +00:00
|
|
|
}
|
2005-09-08 22:07:38 +00:00
|
|
|
|
2012-04-26 05:49:29 +00:00
|
|
|
void __init omap1_init_late(void)
|
|
|
|
{
|
|
|
|
omap_serial_wakeup_init();
|
|
|
|
}
|
|
|
|
|
2010-12-10 17:46:24 +00:00
|
|
|
/*
|
|
|
|
* NOTE: Please use ioremap + __raw_read/write where possible instead of these
|
|
|
|
*/
|
|
|
|
|
|
|
|
u8 omap_readb(u32 pa)
|
|
|
|
{
|
|
|
|
return __raw_readb(OMAP1_IO_ADDRESS(pa));
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(omap_readb);
|
|
|
|
|
|
|
|
u16 omap_readw(u32 pa)
|
|
|
|
{
|
|
|
|
return __raw_readw(OMAP1_IO_ADDRESS(pa));
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(omap_readw);
|
|
|
|
|
|
|
|
u32 omap_readl(u32 pa)
|
|
|
|
{
|
|
|
|
return __raw_readl(OMAP1_IO_ADDRESS(pa));
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(omap_readl);
|
|
|
|
|
|
|
|
void omap_writeb(u8 v, u32 pa)
|
|
|
|
{
|
|
|
|
__raw_writeb(v, OMAP1_IO_ADDRESS(pa));
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(omap_writeb);
|
|
|
|
|
|
|
|
void omap_writew(u16 v, u32 pa)
|
|
|
|
{
|
|
|
|
__raw_writew(v, OMAP1_IO_ADDRESS(pa));
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(omap_writew);
|
|
|
|
|
|
|
|
void omap_writel(u32 v, u32 pa)
|
|
|
|
{
|
|
|
|
__raw_writel(v, OMAP1_IO_ADDRESS(pa));
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(omap_writel);
|