X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=include%2Fasm-arm%2Fmmu.h;fp=include%2Fasm-arm%2Fmmu.h;h=0000000000000000000000000000000000000000;hb=5e62c5c013a717c5afd3397f7f4c823f66f04daf;hp=f1b75747ea5254a91099e8d8631a10c7d8cda140;hpb=e1b6c5e43bfba97f46fdb57724405ba916cec3b4;p=karo-tx-uboot.git diff --git a/include/asm-arm/mmu.h b/include/asm-arm/mmu.h deleted file mode 100644 index f1b75747ea..0000000000 --- a/include/asm-arm/mmu.h +++ /dev/null @@ -1,118 +0,0 @@ -/* - * Copyright 2004-2010 Freescale Semiconductor, Inc. All Rights Reserved. - */ - -/* - * The code contained herein is licensed under the GNU General Public - * License. You may obtain a copy of the GNU General Public License - * Version 2 or later at the following locations: - * - * http://www.opensource.org/licenses/gpl-license.html - * http://www.gnu.org/copyleft/gpl.html - */ - -#ifndef __ASM_MMU_H -#define __ASM_MMU_H - -#include - -#define MMU_L1_TYPE 0x03 /* Descriptor type */ -#define MMU_L1_TYPE_Fault 0x00 /* Invalid */ -#define MMU_L1_TYPE_Page 0x11 /* Individual page mapping */ -#define MMU_L1_TYPE_Section 0x12 /* Mapping for 1M segment */ - -#define MMU_L2_TYPE 0x03 /* Descriptor type */ -#define MMU_L2_TYPE_Fault 0x00 /* Invalid data */ -#define MMU_L2_TYPE_Large 0x01 /* Large page (64K) */ -#define MMU_L2_TYPE_Small 0x02 /* Small page (4K) */ - -#define MMU_Bufferable 0x04 /* Data can use write-buffer */ -#define MMU_Cacheable 0x08 /* Data can use cache */ - -#define MMU_AP_Limited 0x000 /* Limited access */ -#define MMU_AP_Supervisor 0x400 /* Supervisor RW, User none */ -#define MMU_AP_UserRead 0x800 /* Supervisor RW, User read only */ -#define MMU_AP_Any 0xC00 /* Supervisor RW, User RW */ - -#define MMU_AP_ap0_Any 0x030 -#define MMU_AP_ap1_Any 0x0C0 -#define MMU_AP_ap2_Any 0x300 -#define MMU_AP_ap3_Any 0xC00 -#define MMU_AP_All (MMU_AP_ap0_Any|MMU_AP_ap1_Any|MMU_AP_ap2_Any|MMU_AP_ap3_Any) - -#define MMU_DOMAIN(x) ((x)<<5) - -#define MMU_PAGE_SIZE 0x1000 -#define MMU_SECTION_SIZE 0x100000 - -#define MMU_CP p15 /* Co-processor ID */ -#define MMU_Control c1 /* Control register */ -#define MMU_Base c2 /* Page tables base */ -#define MMU_DomainAccess c3 /* Domain access control */ -#define MMU_FaultStatus c5 /* Fault status register */ -#define MMU_FaultAddress c6 /* Fault Address */ -#define MMU_InvalidateCache c7 /* Invalidate cache data */ -#define MMU_TLB c8 /* Translation Lookaside Buffer */ - -/* These seem to be 710 specific */ -#define MMU_FlushTLB c5 -#define MMU_FlushIDC c7 - -#define MMU_Control_M 0x001 /* Enable MMU */ -#define MMU_Control_A 0x002 /* Enable address alignment faults */ -#define MMU_Control_C 0x004 /* Enable cache */ -#define MMU_Control_W 0x008 /* Enable write-buffer */ -#define MMU_Control_P 0x010 /* Compatability: 32 bit code */ -#define MMU_Control_D 0x020 /* Compatability: 32 bit data */ -#define MMU_Control_L 0x040 /* Compatability: */ -#define MMU_Control_B 0x080 /* Enable Big-Endian */ -#define MMU_Control_S 0x100 /* Enable system protection */ -#define MMU_Control_R 0x200 /* Enable ROM protection */ -#define MMU_Control_I 0x1000 /* Enable Instruction cache */ -#define MMU_Control_X 0x2000 /* Set interrupt vectors at 0xFFFF0000 */ -#define MMU_Control_Init (MMU_Control_P|MMU_Control_D|MMU_Control_L) - -/* Extras for some newer versions eg. ARM920 with architecture version 4. */ -#define MMU_Control_F 0x400 /* IMPLEMENTATION DEFINED */ -#define MMU_Control_Z 0x800 /* Enable branch predicion */ -#define MMU_Control_RR 0x4000 /* Select non-random cache replacement */ - -#ifdef CONFIG_ARCH_MMU - -#define MMU_ON() \ - { \ - unsigned long cr = 0; \ - asm volatile ("mrc p15, 0, %0, c1, c0;" : "=r"(cr) : /*:*/); \ - cr |= (CR_M | CR_A | CR_C | CR_Z); \ - asm volatile ("mcr p15, 0, %0, c1, c0;" : : "r"(cr) /*:*/); \ - /* Clean instruction pipeline */ \ - asm volatile ( \ - "b skip;" \ - "nop;" \ - "nop;" \ - "nop;" \ - "skip:" \ - ); \ - } - -#define MMU_OFF() \ - { \ - unsigned long cr = 0; \ - asm volatile ("mrc p15, 0, %0, c1, c0;" : "=r"(cr) /*: :*/); \ - cr &= (~(CR_M | CR_A | CR_C | CR_I)); \ - asm volatile ("mcr p15, 0, %0, c1, c0;" : : "r"(cr) /*:*/); \ - asm volatile ( \ - "nop;" /* flush i+d-TLBs */ \ - "nop;" /* flush i+d-TLBs */ \ - "nop;" /* flush i+d-TLBs */ \ - ); \ - } - -#else - -#define MMU_ON() -#define MMU_OFF() - -#endif - -#endif