104 lines
3.5 KiB
C
104 lines
3.5 KiB
C
|
/*
|
||
|
|
* arch/arm/plat-omap/include/mach/memory.h
|
||
|
|
*
|
||
|
|
* Memory map for OMAP-1510 and 1610
|
||
|
|
*
|
||
|
|
* Copyright (C) 2000 RidgeRun, Inc.
|
||
|
|
* Author: Greg Lonnon <glonnon@ridgerun.com>
|
||
|
|
*
|
||
|
|
* This file was derived from arch/arm/mach-intergrator/include/mach/memory.h
|
||
|
|
* Copyright (C) 1999 ARM Limited
|
||
|
|
*
|
||
|
|
* 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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __ASM_ARCH_MEMORY_H
|
||
|
|
#define __ASM_ARCH_MEMORY_H
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Physical DRAM offset.
|
||
|
|
*/
|
||
|
|
#if defined(CONFIG_ARCH_OMAP1)
|
||
|
|
#define PHYS_OFFSET UL(0x10000000)
|
||
|
|
#elif defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) || \
|
||
|
|
defined(CONFIG_ARCH_OMAP4)
|
||
|
|
#define PHYS_OFFSET UL(0x80000000)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Bus address is physical address, except for OMAP-1510 Local Bus.
|
||
|
|
* OMAP-1510 bus address is translated into a Local Bus address if the
|
||
|
|
* OMAP bus type is lbus. We do the address translation based on the
|
||
|
|
* device overriding the defaults used in the dma-mapping API.
|
||
|
|
* Note that the is_lbus_device() test is not very efficient on 1510
|
||
|
|
* because of the strncmp().
|
||
|
|
*/
|
||
|
|
#ifdef CONFIG_ARCH_OMAP15XX
|
||
|
|
|
||
|
|
/*
|
||
|
|
* OMAP-1510 Local Bus address offset
|
||
|
|
*/
|
||
|
|
#define OMAP1510_LB_OFFSET UL(0x30000000)
|
||
|
|
|
||
|
|
#define virt_to_lbus(x) ((x) - PAGE_OFFSET + OMAP1510_LB_OFFSET)
|
||
|
|
#define lbus_to_virt(x) ((x) - OMAP1510_LB_OFFSET + PAGE_OFFSET)
|
||
|
|
#define is_lbus_device(dev) (cpu_is_omap15xx() && dev && (strncmp(dev_name(dev), "ohci", 4) == 0))
|
||
|
|
|
||
|
|
#define __arch_page_to_dma(dev, page) \
|
||
|
|
({ dma_addr_t __dma = page_to_phys(page); \
|
||
|
|
if (is_lbus_device(dev)) \
|
||
|
|
__dma = __dma - PHYS_OFFSET + OMAP1510_LB_OFFSET; \
|
||
|
|
__dma; })
|
||
|
|
|
||
|
|
#define __arch_dma_to_page(dev, addr) \
|
||
|
|
({ dma_addr_t __dma = addr; \
|
||
|
|
if (is_lbus_device(dev)) \
|
||
|
|
__dma += PHYS_OFFSET - OMAP1510_LB_OFFSET; \
|
||
|
|
phys_to_page(__dma); \
|
||
|
|
})
|
||
|
|
|
||
|
|
#define __arch_dma_to_virt(dev, addr) ({ (void *) (is_lbus_device(dev) ? \
|
||
|
|
lbus_to_virt(addr) : \
|
||
|
|
__phys_to_virt(addr)); })
|
||
|
|
|
||
|
|
#define __arch_virt_to_dma(dev, addr) ({ unsigned long __addr = (unsigned long)(addr); \
|
||
|
|
(dma_addr_t) (is_lbus_device(dev) ? \
|
||
|
|
virt_to_lbus(__addr) : \
|
||
|
|
__virt_to_phys(__addr)); })
|
||
|
|
|
||
|
|
#endif /* CONFIG_ARCH_OMAP15XX */
|
||
|
|
|
||
|
|
/* Override the ARM default */
|
||
|
|
#ifdef CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE
|
||
|
|
|
||
|
|
#if (CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE == 0)
|
||
|
|
#undef CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE
|
||
|
|
#define CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE 2
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define CONSISTENT_DMA_SIZE \
|
||
|
|
(((CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE + 1) & ~1) * 1024 * 1024)
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|