Add logic to support a ROM'ed MMU page table

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2470 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 116 insertions, 0 deletions

diff --git a/nuttx/configs/ea3131/include/board_memorymap.h b/nuttx/configs/ea3131/include/board_memorymap.h
new file mode 100755
index 000000000..f64b028a8
--- /dev/null
+++ b/nuttx/configs/ea3131/include/board_memorymap.h
@@ -0,0 +1,116 @@
+/************************************************************************************
+ * configs/ea3131/include/board_memorymap.h
+ * include/arch/board/board_memorymap.h
+ *
+ *   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "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
+ * COPYRIGHT OWNER OR CONTRIBUTORS 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.
+ *
+ ************************************************************************************/
+
+#ifndef __ARCH_BOARD_BOARD_MEMORYMAP_H
+#define __ARCH_BOARD_BOARD_MEMORYMAP_H
+
+/* This file should never be included directly, but only indirectly via
+ * lpc313x_memorymap.h.
+ */
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+
+/* If the LPC313x ROM page table is selected, then the board-logic is required
+ * to provide:
+ *
+ *   PGTABLE_BASE_PADDR - The physical address of the page table in ROM,
+ *   PGTABLE_BASE_VADDR - The mapped address of the page table in ROM, and
+ *   Mappings for each of the PSECTIONS in lpc313x_memorymap.h
+ */
+ 
+#ifdef CONFIG_ARCH_ROMPGTABLE
+   /* The LPC313x ROM page table uses a 1-1 physical to virtual memory mapping */
+
+#  define LPC313X_SHADOWSPACE_VSECTION 0x00000000 /* 0x00000000-0x00000fff: Shadow Area 4Kb */
+#  define LPC313X_INTSRAM_VSECTION     0x11028000 /*                        Internal SRAM 96Kb-192Kb */
+#    define LPC313X_INTSRAM0_VADDR     0x11028000 /* 0x11028000-0x1103ffff: Internal SRAM 0 96Kb */
+#    define LPC313X_INTSRAM1_VADDR     0x11040000 /* 0x11040000-0x11057fff: Internal SRAM 1 96Kb */
+#  define LPC313X_INTSROM0_VSECTION    0x12000000 /* 0x12000000-0x1201ffff: Internal SROM 0 128Kb */
+#  define LPC313X_APB0_VSECTION        0x13000000 /* 0x13000000-0x13007fff: APB0 32Kb */
+#  define LPC313X_APB1_VSECTION        0x13008000 /* 0x13008000-0x1300bfff: APB1 16Kb */
+#  define LPC313X_APB2_VSECTION        0x15000000 /* 0x15000000-0x15003fff: APB2 16Kb */
+#  define LPC313X_APB3_VSECTION        0x16000000 /* 0x16000000-0x160003ff: APB3 1Kb */
+#  define LPC313X_APB4MPMC_VSECTION    0x17000000 /*                        8Kb */
+#    define LPC313X_APB4_VADDR         0x17000000 /* 0x17000000-0x17000fff: APB4 4Kb */
+#    define LPC313X_MPMC_VADDR         0x17008000 /* 0x17008000-0x17008fff: MPMC cfg 4Kb */
+#  define LPC313X_MCI_VSECTION         0x18000000 /* 0x18000000 0x180003ff: MCI/SD/SDIO 1Kb */
+#  define LPC313X_USBOTG_VSECTION      0x19000000 /* 0x19000000-0x19000fff: USB OTG 4Kb */
+#  define LPC313X_EXTSRAM_VSECTION     0x20020000 /*                        64-128Kb */
+#    define LPC313X_EXTSRAM0_VADDR     0x20000000 /* 0x20000000-0x2001ffff: External SRAM 0 64-128Kb */
+#    define LPC313X_EXTSRAM1_VADDR     0x20020000 /* 0x20020000-0x2003ffff: External SRAM 1 64-128Kb */
+#  define LPC313X_EXTSDRAM0_VSECTION   0x30000000 /* 0x30000000-0x37ffffff: External SDRAM 0 128Mb */
+#  define LPC313X_INTC_VSECTION        0x60000000 /* 0x60000000-0x60000fff: Interrupt controller 4Kb */
+#  define LPC313X_NAND_VSECTION        0x70000000 /* 0x70000000-0x700007ff: NANDFLASH Ctrl 2Kb */
+
+   /* Define the address of the page table within the ROM */
+
+#  define ROMPGTABLE_OFFSET            0x0001c00  /* Offset of the ROM page table in ROM */
+#  define PGTABLE_BASE_PADDR           (LPC313X_INTSROM0_PSECTION+ROMPGTABLE_OFFSET)
+#  define PGTABLE_BASE_VADDR           (LPC313X_INTSROM0_VSECTION+ROMPGTABLE_OFFSET)
+#endif
+
+/************************************************************************************
+ * Public Data
+ ************************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C" {
+#else
+#define EXTERN extern
+#endif
+
+/************************************************************************************
+ * Public Function Prototypes
+ ************************************************************************************/
+#undef EXTERN
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* __ASSEMBLY__ */
+#endif  /* __ARCH_BOARD_BOARD_MEMORYMAP_H */