/*
- * msys_doc.c: driver for programming m-systems doc devices
+ * This file is part of the flashrom project.
*
+ * Copyright (C) 2003 Niki W. Waibel <niki.waibel@gmx.net>
*
- * Copyright 2003 Niki W. Waibel <niki.waibel@gmx.net>
+ * 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.
*
- * 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.
+ * 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 <stdio.h>
#include <unistd.h>
#include "flash.h"
#include "msys_doc.h"
-
-
-
-
-static int doc_wait(volatile char *bios, int timeout);
-static unsigned char doc_read_chipid(volatile char *bios);
-static unsigned char doc_read_docstatus(volatile char *bios);
-static unsigned char doc_read_cdsncontrol(volatile char *bios);
-static void doc_write_cdsncontrol(volatile char *bios, unsigned char data);
-
-
-
-
+static int doc_wait(volatile uint8_t *bios, int timeout);
+static uint8_t doc_read_chipid(volatile uint8_t *bios);
+static uint8_t doc_read_docstatus(volatile uint8_t *bios);
+static uint8_t doc_read_cdsncontrol(volatile uint8_t *bios);
+static void doc_write_cdsncontrol(volatile uint8_t *bios, uint8_t data);
int probe_md2802(struct flashchip *flash)
{
- volatile char *bios = flash->virt_addr;
- unsigned char chipid;
+ volatile uint8_t *bios = flash->virtual_memory;
+ uint8_t chipid;
#ifndef MSYSTEMS_DOC_NO_55AA_CHECKING
- unsigned char id_0x55, id_0xAA;
+ uint8_t id_0x55, id_0xAA;
#endif /* !MSYSTEMS_DOC_NO_55AA_CHECKING */
int i, toggle_a, toggle_b;
- printf("%s:\n", __FUNCTION__);
- printf("%s: *******************************\n", __FUNCTION__);
- printf("%s: * THIS IS A PRE ALPHA VERSION *\n", __FUNCTION__);
- printf("%s: * IN THE DEVELOPEMENT *********\n", __FUNCTION__);
- printf("%s: * PROCESS RIGHT NOW. **********\n", __FUNCTION__);
- printf("%s: *******************************\n", __FUNCTION__);
- printf("%s: * IF YOU ARE NOT A DEVELOPER **\n", __FUNCTION__);
- printf("%s: * THEN DO NOT TRY TO READ OR **\n", __FUNCTION__);
- printf("%s: * WRITE TO THIS DEVICE ********\n", __FUNCTION__);
- printf("%s: *******************************\n", __FUNCTION__);
- printf("%s:\n", __FUNCTION__);
-
- printf("%s: switching off reset mode ...\n", __FUNCTION__);
+ printf_debug("%s:\n", __FUNCTION__);
+ printf_debug("%s: *******************************\n", __FUNCTION__);
+ printf_debug("%s: * THIS IS A PRE ALPHA VERSION *\n", __FUNCTION__);
+ printf_debug("%s: * IN THE DEVELOPEMENT *********\n", __FUNCTION__);
+ printf_debug("%s: * PROCESS RIGHT NOW. **********\n", __FUNCTION__);
+ printf_debug("%s: *******************************\n", __FUNCTION__);
+ printf_debug("%s: * IF YOU ARE NOT A DEVELOPER **\n", __FUNCTION__);
+ printf_debug("%s: * THEN DO NOT TRY TO READ OR **\n", __FUNCTION__);
+ printf_debug("%s: * WRITE TO THIS DEVICE ********\n", __FUNCTION__);
+ printf_debug("%s: *******************************\n", __FUNCTION__);
+ printf_debug("%s:\n", __FUNCTION__);
+
+ printf_debug("%s: switching off reset mode ...\n", __FUNCTION__);
doc_write(0x85, bios, DOCControl);
doc_write(0x85, bios, DOCControl);
doc_read_4nop(bios);
printf("%s: switching off write protection ...\n", __FUNCTION__);
doc_write_cdsncontrol(bios, doc_read_cdsncontrol(bios) & (~0x08));
- printf("%s: switching off write protection ... done\n",
- __FUNCTION__);
+ printf("%s: switching off write protection ... done\n", __FUNCTION__);
printf("%s:\n", __FUNCTION__);
-
chipid = doc_read_chipid(bios);
#ifndef MSYSTEMS_DOC_NO_55AA_CHECKING
id_0x55 = doc_read(bios, IPL_0x0000);
printf("%s:", __FUNCTION__);
toggle_a = toggle_b = 0;
for (i = 0; i < 10; i++) {
- unsigned char toggle = doc_toggle(bios);
+ uint8_t toggle = doc_toggle(bios);
printf(" 0x%02x", toggle);
printf("\n%s: toggle result: %d/%d\n", __FUNCTION__, toggle_a,
toggle_b);
- if (chipid == flash->model_id
- && ((toggle_a == 5 && toggle_b == 0)
- || (toggle_a == 0 && toggle_b == 5))
+ if (chipid == flash->model_id && ((toggle_a == 5 && toggle_b == 0)
+ || (toggle_a == 0 && toggle_b == 5))
#ifndef MSYSTEMS_DOC_NO_55AA_CHECKING
&& id_0x55 == 0x55 && id_0xAA == 0xaa
#endif /* !MSYSTEMS_DOC_NO_55AA_CHECKING */
) {
- return (1);
+ return 1;
}
- return (0);
-} /* int probe_md2802(struct flashchip *flash) */
-
-
+ return 0;
+}
-int read_md2802(struct flashchip *flash, unsigned char *buf)
+int read_md2802(struct flashchip *flash, uint8_t *buf)
{
-
- return (0);
-} /* int read_md2802(struct flashchip *flash, unsigned char *buf) */
-
-
+ return 0;
+}
int erase_md2802(struct flashchip *flash)
{
- volatile char *bios = flash->virt_addr;
+ volatile uint8_t *bios = flash->virtual_memory;
- return (1);
- *(volatile char *) (bios + 0x5555) = 0xAA;
- *(volatile char *) (bios + 0x2AAA) = 0x55;
- *(volatile char *) (bios + 0x5555) = 0x80;
+ return 1;
- *(volatile char *) (bios + 0x5555) = 0xAA;
- *(volatile char *) (bios + 0x2AAA) = 0x55;
- *(volatile char *) (bios + 0x5555) = 0x10;
-} /* int erase_md2802(struct flashchip *flash) */
+ *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
+ *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
+ *(volatile uint8_t *)(bios + 0x5555) = 0x80;
+ *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
+ *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
+ *(volatile uint8_t *)(bios + 0x5555) = 0x10;
+}
-
-int write_md2802(struct flashchip *flash, unsigned char *buf)
+int write_md2802(struct flashchip *flash, uint8_t *buf)
{
int i;
- int total_size = flash->total_size * 1024, page_size =
- flash->page_size;
- volatile unsigned char *bios = flash->virt_addr;
+ int total_size = flash->total_size * 1024;
+ int page_size = flash->page_size;
+ volatile uint8_t *bios = flash->virtual_memory;
return (1);
erase_md2802(flash);
- if (*bios != (unsigned char) 0xff) {
- printf("ERASE FAILED\n");
+ if (*bios != (uint8_t) 0xff) {
+ printf("ERASE FAILED!\n");
return -1;
}
- printf("Programming Page: ");
+ printf("Programming page: ");
for (i = 0; i < total_size / page_size; i++) {
printf("%04d at address: 0x%08x", i, i * page_size);
//write_page_md2802(bios, buf + i * page_size, bios + i * page_size, page_size);
//protect_md2802(bios);
return 0;
-} /* int write_md2802(struct flashchip *flash, char *buf) */
-
-
-
-
-
+} /* int write_md2802(struct flashchip *flash, uint8_t *buf) */
/*
wait timeout msec for doc to become ready
0: ready
-1: timeout expired
*/
-static int doc_wait(volatile char *bios, int timeout)
+
+static int doc_wait(volatile uint8_t *bios, int timeout)
{
int i = 20;
return (-1);
}
- return (0);
-} /* static int doc_wait(volatile char *bios, int timeout) */
-
-
+ return 0;
+}
-static unsigned char doc_read_docstatus(volatile char *bios)
+static uint8_t doc_read_docstatus(volatile uint8_t *bios)
{
doc_read(bios, CDSNSlowIO);
doc_read_2nop(bios);
return (doc_read(bios, _DOCStatus));
-} /* static unsigned char doc_read_docstatus(volatile char *bios) */
-
-
+}
-static unsigned char doc_read_chipid(volatile char *bios)
+static uint8_t doc_read_chipid(volatile uint8_t *bios)
{
doc_read(bios, CDSNSlowIO);
doc_read_2nop(bios);
return (doc_read(bios, _ChipID));
-} /* static unsigned char doc_read_chipid(volatile char *bios) */
+}
-
-
-static unsigned char doc_read_cdsncontrol(volatile char *bios)
+static uint8_t doc_read_cdsncontrol(volatile uint8_t *bios)
{
- unsigned char value;
+ uint8_t value;
/* the delays might be necessary when reading the busy bit,
but because a read to this reg reads the busy bit
value = doc_read(bios, _CDSNControl);
doc_read_2nop(bios);
- return (value);
-} /* static unsigned char doc_read_chipid(volatile char *bios) */
-
-
+ return value;
+}
-static void doc_write_cdsncontrol(volatile char *bios, unsigned char data)
+static void doc_write_cdsncontrol(volatile uint8_t *bios, uint8_t data)
{
doc_write(data, bios, _CDSNControl);
doc_read_4nop(bios);
-} /* static void doc_write_chipid(volatile char *bios, unsigned char data) */
+}
projects / coreboot.git / blobdiff