mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
179 lines
3.6 KiB
179 lines
3.6 KiB
// SPDX-License-Identifier: GPL-2.0-only |
|
/* |
|
* linux/arch/arm/mach-omap1/io.c |
|
* |
|
* OMAP1 I/O mapping code |
|
*/ |
|
|
|
#include <linux/module.h> |
|
#include <linux/kernel.h> |
|
#include <linux/init.h> |
|
#include <linux/io.h> |
|
|
|
#include <asm/tlb.h> |
|
#include <asm/mach/map.h> |
|
|
|
#include <mach/mux.h> |
|
#include <mach/tc.h> |
|
#include <linux/omap-dma.h> |
|
|
|
#include "iomap.h" |
|
#include "common.h" |
|
#include "clock.h" |
|
|
|
/* |
|
* The machine specific code may provide the extra mapping besides the |
|
* default mapping provided here. |
|
*/ |
|
static struct map_desc omap_io_desc[] __initdata = { |
|
{ |
|
.virtual = OMAP1_IO_VIRT, |
|
.pfn = __phys_to_pfn(OMAP1_IO_PHYS), |
|
.length = OMAP1_IO_SIZE, |
|
.type = MT_DEVICE |
|
} |
|
}; |
|
|
|
#if defined (CONFIG_ARCH_OMAP730) || defined (CONFIG_ARCH_OMAP850) |
|
static struct map_desc omap7xx_io_desc[] __initdata = { |
|
{ |
|
.virtual = OMAP7XX_DSP_BASE, |
|
.pfn = __phys_to_pfn(OMAP7XX_DSP_START), |
|
.length = OMAP7XX_DSP_SIZE, |
|
.type = MT_DEVICE |
|
}, { |
|
.virtual = OMAP7XX_DSPREG_BASE, |
|
.pfn = __phys_to_pfn(OMAP7XX_DSPREG_START), |
|
.length = OMAP7XX_DSPREG_SIZE, |
|
.type = MT_DEVICE |
|
} |
|
}; |
|
#endif |
|
|
|
#ifdef CONFIG_ARCH_OMAP15XX |
|
static struct map_desc omap1510_io_desc[] __initdata = { |
|
{ |
|
.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 |
|
} |
|
}; |
|
#endif |
|
|
|
#if defined(CONFIG_ARCH_OMAP16XX) |
|
static struct map_desc omap16xx_io_desc[] __initdata = { |
|
{ |
|
.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 |
|
} |
|
}; |
|
#endif |
|
|
|
/* |
|
* Maps common IO regions for omap1 |
|
*/ |
|
static void __init omap1_map_common_io(void) |
|
{ |
|
iotable_init(omap_io_desc, ARRAY_SIZE(omap_io_desc)); |
|
} |
|
|
|
#if defined (CONFIG_ARCH_OMAP730) || defined (CONFIG_ARCH_OMAP850) |
|
void __init omap7xx_map_io(void) |
|
{ |
|
omap1_map_common_io(); |
|
iotable_init(omap7xx_io_desc, ARRAY_SIZE(omap7xx_io_desc)); |
|
} |
|
#endif |
|
|
|
#ifdef CONFIG_ARCH_OMAP15XX |
|
void __init omap15xx_map_io(void) |
|
{ |
|
omap1_map_common_io(); |
|
iotable_init(omap1510_io_desc, ARRAY_SIZE(omap1510_io_desc)); |
|
} |
|
#endif |
|
|
|
#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)); |
|
} |
|
#endif |
|
|
|
/* |
|
* Common low-level hardware init for omap1. |
|
*/ |
|
void __init omap1_init_early(void) |
|
{ |
|
omap_check_revision(); |
|
|
|
/* 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 |
|
*/ |
|
omap1_clk_init(); |
|
omap1_mux_init(); |
|
} |
|
|
|
void __init omap1_init_late(void) |
|
{ |
|
omap_serial_wakeup_init(); |
|
} |
|
|
|
/* |
|
* 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);
|
|
|