/**  Copyright (C) 2002 Scott McNutt <smcnutt@artesyncp.com>** See file CREDITS for list of people who contributed to this* project.** 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 program 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 this program; if not, write to the Free Software* Foundation, Inc., 59 Temple Place, Suite 330, Boston,* MA 02111-1307 USA*/#include <ppc_asm.tmpl>#include <config.h>/* General */#define TLB_VALID   0x00000200/* Supported page sizes */#define SZ_1K	    0x00000000#define SZ_4K	    0x00000010#define SZ_16K	    0x00000020#define SZ_64K	    0x00000030#define SZ_256K	    0x00000040#define SZ_1M	    0x00000050#define SZ_16M	    0x00000070#define SZ_256M	    0x00000090/* Storage attributes */#define SA_W	    0x00000800	    /* Write-through */#define SA_I	    0x00000400	    /* Caching inhibited */#define SA_M	    0x00000200	    /* Memory coherence */#define SA_G	    0x00000100	    /* Guarded */#define SA_E	    0x00000080	    /* Endian *//* Access control */#define AC_X	    0x00000024	    /* Execute */#define AC_W	    0x00000012	    /* Write */#define AC_R	    0x00000009	    /* Read *//* Some handy macros */#define EPN(e)		((e) & 0xfffffc00)#define TLB0(epn,sz)	( (EPN((epn)) | (sz) | TLB_VALID ) )#define TLB1(rpn,erpn)	( ((rpn)&0xfffffc00) | (erpn) )#define TLB2(a)		( (a)&0x00000fbf )#define tlbtab_start\	mflr    r1  ;\	bl 0f	    ;#define tlbtab_end\	.long 0, 0, 0	;   \0:	mflr    r0	;   \	mtlr    r1	;   \	blr		;#define tlbentry(epn,sz,rpn,erpn,attr)\	.long TLB0(epn,sz),TLB1(rpn,erpn),TLB2(attr)/************************************************************************** * TLB TABLE * * This table is used by the cpu boot code to setup the initial tlb * entries. Rather than make broad assumptions in the cpu source tree, * this table lets each board set things up however they like. * *  Pointer to the table is returned in r1 * *************************************************************************/    .section .bootpg,"ax"    .globl tlbtabtlbtab:    tlbtab_start    tlbentry( 0xf0000000, SZ_256M, 0xf0000000, 1, AC_R|AC_W|AC_X|SA_G|SA_I)    tlbentry( CFG_PERIPHERAL_BASE, SZ_256M, 0x40000000, 1, AC_R|AC_W|SA_G|SA_I)    tlbentry( CFG_ISRAM_BASE, SZ_4K, 0x80000000, 0, AC_R|AC_W|AC_X )    tlbentry( CFG_ISRAM_BASE + 0x1000, SZ_4K, 0x80001000, 0, AC_R|AC_W|AC_X )    tlbentry( CFG_SDRAM_BASE, SZ_256M, 0x00000000, 0, AC_R|AC_W|AC_X )    tlbtab_end