/*
- * 49lfxxxc.c: driver for SST49LFXXXC flash models.
+ * This file is part of the flashrom project.
*
+ * Copyright (C) 2000 Silicon Integrated System Corporation
+ * Copyright (C) 2005-2007 coresystems GmbH
*
- * Copyright 2000 Silicon Integrated System Corporation
- * Copyright 2005 coresystems GmbH <stepan@openbios.org>
+ * 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 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., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *
- * Reference:
- * SST49LFxxxC data sheets
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
-
#include "flash.h"
-#include "jedec.h"
-#include "debug.h"
#define SECTOR_ERASE 0x30
#define BLOCK_ERASE 0x20
//printf("lockbits at address=0x%08lx is 0x%01x\n", (unsigned long)0xFFc00000 - size + address + 2, *(bios + address + 2) );
*(bios + address + 2) = bits;
- return (0);
+ return 0;
}
static __inline__ int erase_sector_49lfxxxc(volatile uint8_t *bios,
}
} while (!(status & STATUS_WSMS));
- return (0);
+ return 0;
}
static __inline__ int write_sector_49lfxxxc(volatile uint8_t *bios,
} while (!(status & STATUS_WSMS));
}
- return (0);
+ return 0;
}
int probe_49lfxxxc(struct flashchip *flash)
{
- volatile uint8_t *bios = flash->virt_addr;
+ volatile uint8_t *bios = flash->virtual_memory;
+
uint8_t id1, id2;
- size_t size = flash->total_size * 1024;
*bios = RESET;
*bios = RESET;
printf_debug("%s: id1 0x%x, id2 0x%x\n", __FUNCTION__, id1, id2);
+
if (!(id1 == flash->manufacture_id && id2 == flash->model_id))
return 0;
- bios = mmap(0, size, PROT_WRITE | PROT_READ, MAP_SHARED,
- fd_mem, (off_t) (0xFFFFFFFF - 0x400000 - size + 1));
- if (bios == MAP_FAILED) {
- // it's this part but we can't map it ...
- perror("Error MMAP /dev/mem");
- exit(1);
- }
- flash->virt_addr_2 = bios;
+ map_flash_registers(flash);
+
return 1;
}
int erase_49lfxxxc(struct flashchip *flash)
{
- volatile uint8_t *bios = flash->virt_addr;
- volatile uint8_t *bios2 = flash->virt_addr_2;
+ volatile uint8_t *bios = flash->virtual_memory;
+ volatile uint8_t *registers = flash->virtual_registers;
int i;
unsigned int total_size = flash->total_size * 1024;
- write_lockbits_49lfxxxc(bios2, total_size, 0);
+ write_lockbits_49lfxxxc(registers, total_size, 0);
for (i = 0; i < total_size; i += flash->page_size)
if (erase_sector_49lfxxxc(bios, i) != 0)
return (-1);
*bios = RESET;
- return (0);
+
+ return 0;
}
int write_49lfxxxc(struct flashchip *flash, uint8_t *buf)
int i;
int total_size = flash->total_size * 1024;
int page_size = flash->page_size;
- volatile uint8_t *bios = flash->virt_addr;
+ volatile uint8_t *bios = flash->virtual_memory;
- write_lockbits_49lfxxxc(flash->virt_addr_2, total_size, 0);
- printf("Programming Page: ");
+ write_lockbits_49lfxxxc(flash->virtual_registers, total_size, 0);
+ printf("Programming page: ");
for (i = 0; i < total_size / page_size; i++) {
/* erase the page before programming */
erase_sector_49lfxxxc(bios, i * page_size);
printf("\n");
*bios = RESET;
- return (0);
+
+ return 0;
}