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linux/include/asm-arm/arch-omap/io.h
Paul Walmsley 445959821f ARM: OMAP2: Change 24xx to use new register access 
This patch changes 24xx to use new register access, except for clock
framework. Clock framework register access will get updates in the
next patch.

Note that board-*.c files change GPMC (General Purpose Memory Controller)
access to use gpmc_cs_write_reg() instead of accessing the registers
directly. The code also uses gpmc_fck instead of it's parent clock
core_l3_ck for GPMC clock.

The H4 board file also adds h4_init_flash() function, which specify the
flash start and end addresses.

Also note that sleep.S removes some unused registers addresses.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-04-14 10:29:37 -07:00

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/*
* linux/include/asm-arm/arch-omap/io.h
*
* IO definitions for TI OMAP processors and boards
*
* Copied from linux/include/asm-arm/arch-sa1100/io.h
* Copyright (C) 1997-1999 Russell King
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*
* Modifications:
* 06-12-1997 RMK Created.
* 07-04-1999 RMK Major cleanup
*/
#ifndef __ASM_ARM_ARCH_IO_H
#define __ASM_ARM_ARCH_IO_H
#include <asm/hardware.h>
#define IO_SPACE_LIMIT 0xffffffff
/*
* We don't actually have real ISA nor PCI buses, but there is so many
* drivers out there that might just work if we fake them...
*/
#define __io(a) ((void __iomem *)(PCIO_BASE + (a)))
#define __mem_pci(a) (a)
/*
* ----------------------------------------------------------------------------
* I/O mapping
* ----------------------------------------------------------------------------
*/
#define PCIO_BASE 0
#if defined(CONFIG_ARCH_OMAP1)
#define IO_PHYS 0xFFFB0000
#define IO_OFFSET 0x01000000 /* Virtual IO = 0xfefb0000 */
#define IO_SIZE 0x40000
#define IO_VIRT (IO_PHYS - IO_OFFSET)
#define IO_ADDRESS(pa) ((pa) - IO_OFFSET)
#define io_p2v(pa) ((pa) - IO_OFFSET)
#define io_v2p(va) ((va) + IO_OFFSET)
#elif defined(CONFIG_ARCH_OMAP2)
/* We map both L3 and L4 on OMAP2 */
#define L3_24XX_PHYS L3_24XX_BASE /* 0x68000000 */
#define L3_24XX_VIRT 0xf8000000
#define L3_24XX_SIZE SZ_1M /* 44kB of 128MB used, want 1MB sect */
#define L4_24XX_PHYS L4_24XX_BASE /* 0x48000000 */
#define L4_24XX_VIRT 0xd8000000
#define L4_24XX_SIZE SZ_1M /* 1MB of 128MB used, want 1MB sect */
#ifdef CONFIG_ARCH_OMAP2430
#define L4_WK_243X_PHYS L4_WK_243X_BASE /* 0x49000000 */
#define L4_WK_243X_VIRT 0xd9000000
#define L4_WK_243X_SIZE SZ_1M
#define OMAP243X_GPMC_PHYS OMAP243X_GPMC_BASE /* 0x49000000 */
#define OMAP243X_GPMC_VIRT 0xFE000000
#define OMAP243X_GPMC_SIZE SZ_1M
#define OMAP243X_SDRC_PHYS OMAP243X_SDRC_BASE
#define OMAP243X_SDRC_VIRT 0xFD000000
#define OMAP243X_SDRC_SIZE SZ_1M
#define OMAP243X_SMS_PHYS OMAP243X_SMS_BASE
#define OMAP243X_SMS_VIRT 0xFC000000
#define OMAP243X_SMS_SIZE SZ_1M
#endif
#define IO_OFFSET 0x90000000
#define IO_ADDRESS(pa) ((pa) + IO_OFFSET) /* Works for L3 and L4 */
#define io_p2v(pa) ((pa) + IO_OFFSET) /* Works for L3 and L4 */
#define io_v2p(va) ((va) - IO_OFFSET) /* Works for L3 and L4 */
/* DSP */
#define DSP_MEM_24XX_PHYS OMAP2420_DSP_MEM_BASE /* 0x58000000 */
#define DSP_MEM_24XX_VIRT 0xe0000000
#define DSP_MEM_24XX_SIZE 0x28000
#define DSP_IPI_24XX_PHYS OMAP2420_DSP_IPI_BASE /* 0x59000000 */
#define DSP_IPI_24XX_VIRT 0xe1000000
#define DSP_IPI_24XX_SIZE SZ_4K
#define DSP_MMU_24XX_PHYS OMAP2420_DSP_MMU_BASE /* 0x5a000000 */
#define DSP_MMU_24XX_VIRT 0xe2000000
#define DSP_MMU_24XX_SIZE SZ_4K
#elif defined(CONFIG_ARCH_OMAP3)
/* We map both L3 and L4 on OMAP3 */
#define L3_34XX_PHYS L3_34XX_BASE /* 0x68000000 */
#define L3_34XX_VIRT 0xf8000000
#define L3_34XX_SIZE SZ_1M /* 44kB of 128MB used, want 1MB sect */
#define L4_34XX_PHYS L4_34XX_BASE /* 0x48000000 */
#define L4_34XX_VIRT 0xd8000000
#define L4_34XX_SIZE SZ_4M /* 1MB of 128MB used, want 1MB sect */
/*
* Need to look at the Size 4M for L4.
* VPOM3430 was not working for Int controller
*/
#define L4_WK_34XX_PHYS L4_WK_34XX_BASE /* 0x48300000 */
#define L4_WK_34XX_VIRT 0xd8300000
#define L4_WK_34XX_SIZE SZ_1M
#define L4_PER_34XX_PHYS L4_PER_34XX_BASE /* 0x49000000 */
#define L4_PER_34XX_VIRT 0xd9000000
#define L4_PER_34XX_SIZE SZ_1M
#define L4_EMU_34XX_PHYS L4_EMU_34XX_BASE /* 0x54000000 */
#define L4_EMU_34XX_VIRT 0xe4000000
#define L4_EMU_34XX_SIZE SZ_64M
#define OMAP34XX_GPMC_PHYS OMAP34XX_GPMC_BASE /* 0x6E000000 */
#define OMAP34XX_GPMC_VIRT 0xFE000000
#define OMAP34XX_GPMC_SIZE SZ_1M
#define OMAP343X_SMS_PHYS OMAP343X_SMS_BASE /* 0x6C000000 */
#define OMAP343X_SMS_VIRT 0xFC000000
#define OMAP343X_SMS_SIZE SZ_1M
#define OMAP343X_SDRC_PHYS OMAP343X_SDRC_BASE /* 0x6D000000 */
#define OMAP343X_SDRC_VIRT 0xFD000000
#define OMAP343X_SDRC_SIZE SZ_1M
#define IO_OFFSET 0x90000000
#define IO_ADDRESS(pa) ((pa) + IO_OFFSET)/* Works for L3 and L4 */
#define io_p2v(pa) ((pa) + IO_OFFSET)/* Works for L3 and L4 */
#define io_v2p(va) ((va) - IO_OFFSET)/* Works for L3 and L4 */
/* DSP */
#define DSP_MEM_34XX_PHYS OMAP34XX_DSP_MEM_BASE /* 0x58000000 */
#define DSP_MEM_34XX_VIRT 0xe0000000
#define DSP_MEM_34XX_SIZE 0x28000
#define DSP_IPI_34XX_PHYS OMAP34XX_DSP_IPI_BASE /* 0x59000000 */
#define DSP_IPI_34XX_VIRT 0xe1000000
#define DSP_IPI_34XX_SIZE SZ_4K
#define DSP_MMU_34XX_PHYS OMAP34XX_DSP_MMU_BASE /* 0x5a000000 */
#define DSP_MMU_34XX_VIRT 0xe2000000
#define DSP_MMU_34XX_SIZE SZ_4K
#endif
#ifndef __ASSEMBLER__
/*
* Functions to access the OMAP IO region
*
* NOTE: - Use omap_read/write[bwl] for physical register addresses
* - Use __raw_read/write[bwl]() for virtual register addresses
* - Use IO_ADDRESS(phys_addr) to convert registers to virtual addresses
* - DO NOT use hardcoded virtual addresses to allow changing the
* IO address space again if needed
*/
#define omap_readb(a) (*(volatile unsigned char *)IO_ADDRESS(a))
#define omap_readw(a) (*(volatile unsigned short *)IO_ADDRESS(a))
#define omap_readl(a) (*(volatile unsigned int *)IO_ADDRESS(a))
#define omap_writeb(v,a) (*(volatile unsigned char *)IO_ADDRESS(a) = (v))
#define omap_writew(v,a) (*(volatile unsigned short *)IO_ADDRESS(a) = (v))
#define omap_writel(v,a) (*(volatile unsigned int *)IO_ADDRESS(a) = (v))
/* 16 bit uses LDRH/STRH, base +/- offset_8 */
typedef struct { volatile u16 offset[256]; } __regbase16;
#define __REGV16(vaddr) ((__regbase16 *)((vaddr)&~0xff)) \
->offset[((vaddr)&0xff)>>1]
#define __REG16(paddr) __REGV16(io_p2v(paddr))
/* 8/32 bit uses LDR/STR, base +/- offset_12 */
typedef struct { volatile u8 offset[4096]; } __regbase8;
#define __REGV8(vaddr) ((__regbase8 *)((vaddr)&~4095)) \
->offset[((vaddr)&4095)>>0]
#define __REG8(paddr) __REGV8(io_p2v(paddr))
typedef struct { volatile u32 offset[4096]; } __regbase32;
#define __REGV32(vaddr) ((__regbase32 *)((vaddr)&~4095)) \
->offset[((vaddr)&4095)>>2]
#define __REG32(paddr) __REGV32(io_p2v(paddr))
extern void omap1_map_common_io(void);
extern void omap1_init_common_hw(void);
extern void omap2_map_common_io(void);
extern void omap2_init_common_hw(void);
#else
#define __REG8(paddr) io_p2v(paddr)
#define __REG16(paddr) io_p2v(paddr)
#define __REG32(paddr) io_p2v(paddr)
#endif
#endif
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