/*  *********************************************************************    *  Broadcom Common Firmware Environment (CFE)    *      *  Physical Memory (arena) manager		File: bcmcore_arena.c    *      *  This module describes the physical memory available to the     *  firmware.    *      *  Author:  Mitch Lichtenberg    *      *********************************************************************      *    *  Copyright 2000,2001,2002,2003    *  Broadcom Corporation. All rights reserved.    *      *  This software is furnished under license and may be used and     *  copied only in accordance with the following terms and     *  conditions.  Subject to these conditions, you may download,     *  copy, install, use, modify and distribute modified or unmodified     *  copies of this software in source and/or binary form.  No title     *  or ownership is transferred hereby.    *      *  1) Any source code used, modified or distributed must reproduce     *     and retain this copyright notice and list of conditions     *     as they appear in the source file.    *      *  2) No right is granted to use any trade name, trademark, or     *     logo of Broadcom Corporation.  The "Broadcom Corporation"     *     name may not be used to endorse or promote products derived     *     from this software without the prior written permission of     *     Broadcom Corporation.    *      *  3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR    *     IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED    *     WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR     *     PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT     *     SHALL BROADCOM BE LIABLE FOR ANY DAMAGES WHATSOEVER, AND IN     *     PARTICULAR, BROADCOM SHALL NOT BE LIABLE FOR 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), EVEN IF ADVISED OF     *     THE POSSIBILITY OF SUCH DAMAGE.    ********************************************************************* */#include "cfe.h"#include "sbmips32.h"#include "lib_arena.h"#include "cfe_mem.h"#include "initdata.h"#define _NOPROTOS_#include "cfe_boot.h"#undef _NOPROTOS_/*  *********************************************************************    *  Macros    ********************************************************************* */#define ARENA_RANGE(bottom,top,type) arena_markrange(&cfe_arena,(uint64_t)(bottom), \                                     (uint64_t)(top)-(uint64_t)bottom+1,(type),NULL)#define MEG	(1024*1024)#define KB      1024#define PAGESIZE 4096#define CFE_BOOTAREA_SIZE (256*KB)#define CFE_BOOTAREA_ADDR 0x20000000/*  *********************************************************************    *  Globals    ********************************************************************* */extern arena_t cfe_arena;unsigned int mem_bootarea_start;unsigned int mem_bootarea_size;void bcmcore_arena_init(void);void bcmcore_pagetable_init(uint64_t *ptaddr,unsigned int physaddr);/*  *********************************************************************    *  bcmcore_arena_init()    *      *  Create the initial map of physical memory    *    *  Input parameters:     *  	   nothing    *  	       *  Return value:    *  	   nothing    ********************************************************************* */void bcmcore_arena_init(void){    int64_t memleft;    arena_init(&cfe_arena,0x0,0x100000000ULL);	/* 2^32 physical bytes */    /*     * Mark the ranges from the SB1250's memory map     */    ARENA_RANGE(0x0000000000,0x000FFFFFFF,MEMTYPE_DRAM_NOTINSTALLED);    /*     * Now, fix up the map with what is known about *this* system.     *     * Do each 256MB chunk.     */    memleft = ((int64_t) mem_totalsize) << 20;    arena_markrange(&cfe_arena,0x00000000,memleft,MEMTYPE_DRAM_AVAILABLE,NULL);    /*     * Do the boot ROM     */        arena_markrange(&cfe_arena,0x1FC00000,2*1024*1024,MEMTYPE_BOOTROM,NULL);}/*  *********************************************************************    *  BCMCORE_PAGETABLE_INIT(ptaddr,physaddr)    *      *  This routine constructs the page table.  256KB is mapped    *  starting at physical address 'physaddr' - the resulting    *  table entries are placed at 'ptaddr'    *      *  Input parameters:     *  	   ptaddr - base of page table    *  	   physaddr - starting physical addr of area to map    *  	       *  Return value:    *  	   nothing    ********************************************************************* */void bcmcore_pagetable_init(uint64_t *ptaddr,unsigned int physaddr){    int idx;    for (idx = 0; idx < (CFE_BOOTAREA_SIZE/PAGESIZE); idx++) {	ptaddr[idx] = (physaddr >> 6) | 	    V_TLBLO_CALG(K_CALG_NONCOHERENT) | 	    M_TLBLO_V |	    M_TLBLO_D;	physaddr += PAGESIZE;	}}