mips_tx39.h revision 1.1.2.2
1 1.1.2.2 bouyer /* -*-C++-*- $NetBSD: mips_tx39.h,v 1.1.2.2 2001/02/11 19:10:07 bouyer Exp $ */ 2 1.1.2.2 bouyer 3 1.1.2.2 bouyer /*- 4 1.1.2.2 bouyer * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 1.1.2.2 bouyer * All rights reserved. 6 1.1.2.2 bouyer * 7 1.1.2.2 bouyer * This code is derived from software contributed to The NetBSD Foundation 8 1.1.2.2 bouyer * by UCHIYAMA Yasushi. 9 1.1.2.2 bouyer * 10 1.1.2.2 bouyer * Redistribution and use in source and binary forms, with or without 11 1.1.2.2 bouyer * modification, are permitted provided that the following conditions 12 1.1.2.2 bouyer * are met: 13 1.1.2.2 bouyer * 1. Redistributions of source code must retain the above copyright 14 1.1.2.2 bouyer * notice, this list of conditions and the following disclaimer. 15 1.1.2.2 bouyer * 2. Redistributions in binary form must reproduce the above copyright 16 1.1.2.2 bouyer * notice, this list of conditions and the following disclaimer in the 17 1.1.2.2 bouyer * documentation and/or other materials provided with the distribution. 18 1.1.2.2 bouyer * 3. All advertising materials mentioning features or use of this software 19 1.1.2.2 bouyer * must display the following acknowledgement: 20 1.1.2.2 bouyer * This product includes software developed by the NetBSD 21 1.1.2.2 bouyer * Foundation, Inc. and its contributors. 22 1.1.2.2 bouyer * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.1.2.2 bouyer * contributors may be used to endorse or promote products derived 24 1.1.2.2 bouyer * from this software without specific prior written permission. 25 1.1.2.2 bouyer * 26 1.1.2.2 bouyer * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.1.2.2 bouyer * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.1.2.2 bouyer * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.1.2.2 bouyer * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.1.2.2 bouyer * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.1.2.2 bouyer * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.1.2.2 bouyer * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.1.2.2 bouyer * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.1.2.2 bouyer * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.1.2.2 bouyer * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.1.2.2 bouyer * POSSIBILITY OF SUCH DAMAGE. 37 1.1.2.2 bouyer */ 38 1.1.2.2 bouyer 39 1.1.2.2 bouyer #include <hpcboot.h> 40 1.1.2.2 bouyer #include <mips/mips_arch.h> 41 1.1.2.2 bouyer 42 1.1.2.2 bouyer class TX39XX : public MIPSArchitecture { 43 1.1.2.2 bouyer private: 44 1.1.2.2 bouyer 45 1.1.2.2 bouyer public: 46 1.1.2.2 bouyer TX39XX(Console *&, MemoryManager *&, enum ArchitectureOps); 47 1.1.2.2 bouyer ~TX39XX(void); 48 1.1.2.2 bouyer 49 1.1.2.2 bouyer virtual BOOL init(void); 50 1.1.2.2 bouyer virtual void systemInfo(void); 51 1.1.2.2 bouyer virtual void cacheFlush(void); 52 1.1.2.2 bouyer static void boot_func(struct BootArgs *, struct PageTag *); 53 1.1.2.2 bouyer }; 54 1.1.2.2 bouyer 55 1.1.2.2 bouyer #define MIPS_TX39XX_CACHE_FLUSH() \ 56 1.1.2.2 bouyer __asm( \ 57 1.1.2.2 bouyer ".set noreorder;" \ 58 1.1.2.2 bouyer "li t1, 16384;" \ 59 1.1.2.2 bouyer "li t2, 8192;" \ 60 1.1.2.2 bouyer \ 61 1.1.2.2 bouyer /* Disable I-cache */ \ 62 1.1.2.2 bouyer "li t5, ~0x00000020;" \ 63 1.1.2.2 bouyer "mfc0 t6, $3;" \ 64 1.1.2.2 bouyer "and t5, t5, t6;" \ 65 1.1.2.2 bouyer "nop;" \ 66 1.1.2.2 bouyer "mtc0 t5, $3;" \ 67 1.1.2.2 bouyer \ 68 1.1.2.2 bouyer /* Stop streaming */ \ 69 1.1.2.2 bouyer "beq zero, zero, 1f;" \ 70 1.1.2.2 bouyer "nop;" \ 71 1.1.2.2 bouyer "1:" \ 72 1.1.2.2 bouyer /* Flush I-cache */ \ 73 1.1.2.2 bouyer "li t0, 0x80000000;" \ 74 1.1.2.2 bouyer "addu t1, t0, t1;" \ 75 1.1.2.2 bouyer "subu t1, t1, 128;" \ 76 1.1.2.2 bouyer "2:" \ 77 1.1.2.2 bouyer "cache 0x0, 0($0);" \ 78 1.1.2.2 bouyer "cache 0x0, 16(t0);" \ 79 1.1.2.2 bouyer "cache 0x0, 32(t0);" \ 80 1.1.2.2 bouyer "cache 0x0, 48(t0);" \ 81 1.1.2.2 bouyer "cache 0x0, 64(t0);" \ 82 1.1.2.2 bouyer "cache 0x0, 80(t0);" \ 83 1.1.2.2 bouyer "cache 0x0, 96(t0);" \ 84 1.1.2.2 bouyer "cache 0x0, 112(t0);" \ 85 1.1.2.2 bouyer "bne t0, t1, 2b;" \ 86 1.1.2.2 bouyer "addu t0, t0, 128;" \ 87 1.1.2.2 bouyer \ 88 1.1.2.2 bouyer /* Flush D-cache */ \ 89 1.1.2.2 bouyer "li t0, 0x80000000;" \ 90 1.1.2.2 bouyer "addu t1, t0, t2;" \ 91 1.1.2.2 bouyer \ 92 1.1.2.2 bouyer "3:" \ 93 1.1.2.2 bouyer "lw t2, 0(t0);" \ 94 1.1.2.2 bouyer "bne t1, t0, 3b;" \ 95 1.1.2.2 bouyer "addiu t0, t0, 4;" \ 96 1.1.2.2 bouyer \ 97 1.1.2.2 bouyer /* Enable I-cache */ \ 98 1.1.2.2 bouyer "nop;" \ 99 1.1.2.2 bouyer "mtc0 t6, $3;" \ 100 1.1.2.2 bouyer "nop;" \ 101 1.1.2.2 bouyer ".set reorder;" \ 102 1.1.2.2 bouyer ) 103
Indexes created Fri Sep 26 08:10:20 GMT 2025