--- /dev/null
+#ifndef CYGONCE_HAL_MM_H
+#define CYGONCE_HAL_MM_H
+
+//=============================================================================
+//
+// hal_mm.h
+//
+//=============================================================================
+//####ECOSGPLCOPYRIGHTBEGIN####
+// -------------------------------------------
+// This file is part of eCos, the Embedded Configurable Operating System.
+// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
+//
+// eCos 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 or (at your option) any later version.
+//
+// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+// for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with eCos; if not, write to the Free Software Foundation, Inc.,
+// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+//
+// As a special exception, if other files instantiate templates or use macros
+// or inline functions from this file, or you compile this file and link it
+// with other works to produce a work based on this file, this file does not
+// by itself cause the resulting work to be covered by the GNU General Public
+// License. However the source code for this file must still be made available
+// in accordance with section (3) of the GNU General Public License.
+//
+// This exception does not invalidate any other reasons why a work based on
+// this file might be covered by the GNU General Public License.
+//
+// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
+// at http://sources.redhat.com/ecos/ecos-license/
+// -------------------------------------------
+//####ECOSGPLCOPYRIGHTEND####
+//=============================================================================
+// -------------------------------------------------------------------------
+// MMU initialization:
+//
+// These structures are laid down in memory to define the translation
+// table.
+//
+
+/*
+ * Translation Table Base Bit Masks
+ */
+#define ARM_TRANSLATION_TABLE_MASK 0xFFFFC000
+
+/*
+ * Domain Access Control Bit Masks
+ */
+#define ARM_ACCESS_TYPE_NO_ACCESS(domain_num) (0x0 << (domain_num)*2)
+#define ARM_ACCESS_TYPE_CLIENT(domain_num) (0x1 << (domain_num)*2)
+#define ARM_ACCESS_TYPE_MANAGER(domain_num) (0x3 << (domain_num)*2)
+
+struct ARM_MMU_FIRST_LEVEL_FAULT {
+ unsigned int id : 2;
+ unsigned int sbz : 30;
+};
+
+#define ARM_MMU_FIRST_LEVEL_FAULT_ID 0x0
+
+struct ARM_MMU_FIRST_LEVEL_PAGE_TABLE {
+ unsigned int id : 2;
+ unsigned int imp : 2;
+ unsigned int domain : 4;
+ unsigned int sbz : 1;
+ unsigned int base_address : 23;
+};
+
+#define ARM_MMU_FIRST_LEVEL_PAGE_TABLE_ID 0x1
+
+struct ARM_MMU_FIRST_LEVEL_SECTION {
+ unsigned int id : 2;
+ unsigned int b : 1;
+ unsigned int c : 1;
+ unsigned int imp : 1;
+ unsigned int domain : 4;
+ unsigned int sbz0 : 1;
+ unsigned int ap : 2;
+ unsigned int sbz1 : 8;
+ unsigned int base_address : 12;
+};
+
+#define ARM_MMU_FIRST_LEVEL_SECTION_ID 0x2
+
+struct ARM_MMU_FIRST_LEVEL_RESERVED {
+ unsigned int id : 2;
+ unsigned int sbz : 30;
+};
+
+#define ARM_MMU_FIRST_LEVEL_RESERVED_ID 0x3
+
+#define ARM_MMU_FIRST_LEVEL_DESCRIPTOR_ADDRESS(ttb_base, table_index) \
+ (unsigned long *)((unsigned long)(ttb_base) + ((table_index) << 2))
+
+#define ARM_FIRST_LEVEL_PAGE_TABLE_SIZE 0x4000
+
+#define ARM_MMU_SECTION(ttb_base, actual_base, virtual_base, \
+ cacheable, bufferable, perm) \
+ CYG_MACRO_START \
+ register union ARM_MMU_FIRST_LEVEL_DESCRIPTOR desc; \
+ \
+ desc.word = 0; \
+ desc.section.id = ARM_MMU_FIRST_LEVEL_SECTION_ID; \
+ desc.section.domain = 0; \
+ desc.section.c = (cacheable); \
+ desc.section.b = (bufferable); \
+ desc.section.ap = (perm); \
+ desc.section.base_address = (actual_base); \
+ *ARM_MMU_FIRST_LEVEL_DESCRIPTOR_ADDRESS(ttb_base, (virtual_base)) \
+ = desc.word; \
+ CYG_MACRO_END
+
+#define X_ARM_MMU_SECTION(abase,vbase,size,cache,buff,access) \
+ { \
+ int i; int j = abase; int k = vbase; \
+ for (i = size; i > 0 ; i--,j++,k++) { \
+ ARM_MMU_SECTION(ttb_base, j, k, cache, buff, access); \
+ } \
+ }
+
+union ARM_MMU_FIRST_LEVEL_DESCRIPTOR {
+ unsigned long word;
+ struct ARM_MMU_FIRST_LEVEL_FAULT fault;
+ struct ARM_MMU_FIRST_LEVEL_PAGE_TABLE page_table;
+ struct ARM_MMU_FIRST_LEVEL_SECTION section;
+ struct ARM_MMU_FIRST_LEVEL_RESERVED reserved;
+};
+
+#define ARM_UNCACHEABLE 0
+#define ARM_CACHEABLE 1
+#define ARM_UNBUFFERABLE 0
+#define ARM_BUFFERABLE 1
+
+#define ARM_ACCESS_PERM_NONE_NONE 0
+#define ARM_ACCESS_PERM_RO_NONE 0
+#define ARM_ACCESS_PERM_RO_RO 0
+#define ARM_ACCESS_PERM_RW_NONE 1
+#define ARM_ACCESS_PERM_RW_RO 2
+#define ARM_ACCESS_PERM_RW_RW 3
+
+/*
+ * Initialization for the Domain Access Control Register
+ */
+#define ARM_ACCESS_DACR_DEFAULT ( \
+ ARM_ACCESS_TYPE_MANAGER(0) | \
+ ARM_ACCESS_TYPE_NO_ACCESS(1) | \
+ ARM_ACCESS_TYPE_NO_ACCESS(2) | \
+ ARM_ACCESS_TYPE_NO_ACCESS(3) | \
+ ARM_ACCESS_TYPE_NO_ACCESS(4) | \
+ ARM_ACCESS_TYPE_NO_ACCESS(5) | \
+ ARM_ACCESS_TYPE_NO_ACCESS(6) | \
+ ARM_ACCESS_TYPE_NO_ACCESS(7) | \
+ ARM_ACCESS_TYPE_NO_ACCESS(8) | \
+ ARM_ACCESS_TYPE_NO_ACCESS(9) | \
+ ARM_ACCESS_TYPE_NO_ACCESS(10) | \
+ ARM_ACCESS_TYPE_NO_ACCESS(11) | \
+ ARM_ACCESS_TYPE_NO_ACCESS(12) | \
+ ARM_ACCESS_TYPE_NO_ACCESS(13) | \
+ ARM_ACCESS_TYPE_NO_ACCESS(14) | \
+ ARM_ACCESS_TYPE_NO_ACCESS(15) )
+
+// ------------------------------------------------------------------------
+#endif // ifndef CYGONCE_HAL_MM_H
+// End of hal_mm.h
+
+
+
+
+
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