--- /dev/null
+ /*
+ * 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
+
projects / linux-2.6-block.git / commitdiff