From d2ac6fc18531ecb07e9b92a5469e1d3017e695ae Mon Sep 17 00:00:00 2001
From: Markus Boas <ryven@ryven.de>
Date: Thu, 30 Aug 2007 10:17:50 +0000
Subject: Add support for the Winbond W29EE011
Corresponding to flashrom svn r133 and coreboot v2 svn r2753.
Signed-off-by: Markus Boas <ryven@ryven.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
---
Makefile | 2 +-
README | 1 +
flash.h | 4 ++++
flashchips.c | 2 ++
w29ee011.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
5 files changed, 68 insertions(+), 1 deletion(-)
create mode 100644 w29ee011.c
diff --git a/Makefile b/Makefile
index fbae2397..c6d81084 100644
--- a/Makefile
+++ b/Makefile
@@ -24,7 +24,7 @@ OBJS = chipset_enable.o board_enable.o udelay.o jedec.o sst28sf040.o \
am29f040b.o mx29f002.o sst39sf020.o m29f400bt.o w49f002u.o \
82802ab.o msys_doc.o pm49fl004.o sst49lf040.o sst49lfxxxc.o \
sst_fwhub.o layout.o lbtable.o flashchips.o flashrom.o \
- sharplhf00l04.o
+ sharplhf00l04.o w29ee011.o
all: pciutils dep $(PROGRAM)
diff --git a/README b/README
index 06b58032..7e44d287 100644
--- a/README
+++ b/README
@@ -150,6 +150,7 @@ SyncMOS S29C31004T
Winbond W29C011
Winbond W29C020C
Winbond W29C040P
+Winbond W29EE011
Winbond W49F002U
Winbond W49V002A
Winbond W49V002FA
diff --git a/flash.h b/flash.h
index 850bf33a..6acbb434 100644
--- a/flash.h
+++ b/flash.h
@@ -102,6 +102,7 @@ extern struct flashchip flashchips[];
#define W_29C011 0xC1
#define W_29C020C 0x45
#define W_29C040P 0x46
+#define W_29EE011 0xC1
#define W_39V040FA 0x34
#define W_39V040A 0x3D
#define W_39V040B 0x54
@@ -260,6 +261,9 @@ extern int probe_sst_fwhub(struct flashchip *flash);
extern int erase_sst_fwhub(struct flashchip *flash);
extern int write_sst_fwhub(struct flashchip *flash, uint8_t *buf);
+/* w29ee011.c */
+extern int probe_w29ee011(struct flashchip *flash);
+
/* w49f002u.c */
extern int write_49f002(struct flashchip *flash, uint8_t *buf);
diff --git a/flashchips.c b/flashchips.c
index 29153079..dba8774b 100644
--- a/flashchips.c
+++ b/flashchips.c
@@ -86,6 +86,8 @@ struct flashchip flashchips[] = {
probe_jedec, erase_chip_jedec, write_jedec},
{"W29C020C", WINBOND_ID, W_29C020C, 256, 128,
probe_jedec, erase_chip_jedec, write_jedec},
+ {"W29EE011", WINBOND_ID, W_29C011, 128, 128,
+ probe_w29ee011,erase_chip_jedec, write_jedec},
{"W49F002U", WINBOND_ID, W_49F002U, 256, 128,
probe_jedec, erase_chip_jedec, write_49f002},
{"W49V002A", WINBOND_ID, W_49V002A, 256, 128,
diff --git a/w29ee011.c b/w29ee011.c
new file mode 100644
index 00000000..88a7a8a2
--- /dev/null
+++ b/w29ee011.c
@@ -0,0 +1,60 @@
+/*
+ * This file is part of the flashrom project.
+ *
+ * Copyright (C) 2007 Markus Boas <ryven@ryven.de>
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "flash.h"
+
+int probe_w29ee011(struct flashchip *flash)
+{
+ volatile uint8_t *bios = flash->virtual_memory;
+ uint8_t id1, id2;
+
+ /* Issue JEDEC Product ID Entry command */
+ *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
+ myusec_delay(10);
+ *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
+ myusec_delay(10);
+ *(volatile uint8_t *)(bios + 0x5555) = 0x80;
+ myusec_delay(10);
+ *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
+ myusec_delay(10);
+ *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
+ myusec_delay(10);
+ *(volatile uint8_t *)(bios + 0x5555) = 0x60;
+ myusec_delay(10);
+
+ /* Read product ID */
+ id1 = *(volatile uint8_t *)bios;
+ id2 = *(volatile uint8_t *)(bios + 0x01);
+
+ /* Issue JEDEC Product ID Exit command */
+ *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
+ myusec_delay(10);
+ *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
+ myusec_delay(10);
+ *(volatile uint8_t *)(bios + 0x5555) = 0xF0;
+ myusec_delay(10);
+
+ printf_debug("%s: id1 0x%x, id2 0x%x\n", __FUNCTION__, id1, id2);
+
+ if (id1 == flash->manufacture_id && id2 == flash->model_id)
+ return 1;
+
+ return 0;
+}
--
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