diff options
Diffstat (limited to 'cfe/cfe/arch/mips/cpu/bcmcore/src/bcmcore_arena.c')
| -rwxr-xr-x | cfe/cfe/arch/mips/cpu/bcmcore/src/bcmcore_arena.c | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/cfe/cfe/arch/mips/cpu/bcmcore/src/bcmcore_arena.c b/cfe/cfe/arch/mips/cpu/bcmcore/src/bcmcore_arena.c new file mode 100755 index 0000000..b368158 --- /dev/null +++ b/cfe/cfe/arch/mips/cpu/bcmcore/src/bcmcore_arena.c @@ -0,0 +1,170 @@ +/* ********************************************************************* + * 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; + } + +} + |