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/* *********************************************************************
* 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 (mpl@broadcom.com)
*
*********************************************************************
*
* 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 "sbmips.h"
#include "lib_types.h"
#include "lib_string.h"
#include "lib_queue.h"
#include "lib_malloc.h"
#include "lib_printf.h"
#include "lib_arena.h"
#include "cfe_error.h"
#include "cfe.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;
#if 1 /* defined(CONFIG_MIPS_BRCM) */
arena_init(&cfe_arena,0x0,0x0); /* 2^32 physical bytes */
#else
arena_init(&cfe_arena,0x0,0x100000000); /* 2^32 physical bytes */
#endif
/*
* 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;
}
}
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