1 files changed, 102 insertions, 0 deletions

diff --git a/arch/arm/plat-omap/include/plat/memory.h b/arch/arm/plat-omap/include/plat/memory.h
new file mode 100644
index 00000000000..e6720aa2d55
--- /dev/null
+++ b/arch/arm/plat-omap/include/plat/memory.h
@@ -0,0 +1,102 @@
+/*
+ * 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 PLAT_PHYS_OFFSET                UL(0x10000000)
+#else
+#define PLAT_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_pfn_to_dma(dev, pfn)     \
+        ({ dma_addr_t __dma = __pfn_to_phys(pfn); \
+           if (is_lbus_device(dev)) \
+                __dma = __dma - PHYS_OFFSET + OMAP1510_LB_OFFSET; \
+           __dma; })
+
+#define __arch_dma_to_pfn(dev, addr)    \
+        ({ dma_addr_t __dma = addr;                             \
+           if (is_lbus_device(dev))                             \
+                __dma += PHYS_OFFSET - OMAP1510_LB_OFFSET;      \
+           __phys_to_pfn(__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
+