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path: root/drivers/mtd/maps/pnc2000.c
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Diffstat (limited to 'drivers/mtd/maps/pnc2000.c')
-rw-r--r--drivers/mtd/maps/pnc2000.c93
1 files changed, 93 insertions, 0 deletions
diff --git a/drivers/mtd/maps/pnc2000.c b/drivers/mtd/maps/pnc2000.c
new file mode 100644
index 00000000000..a0f43dad898
--- /dev/null
+++ b/drivers/mtd/maps/pnc2000.c
@@ -0,0 +1,93 @@
+/*
+ * pnc2000.c - mapper for Photron PNC-2000 board.
+ *
+ * Copyright (C) 2000 Crossnet Co. <info@crossnet.co.jp>
+ *
+ * This code is GPL
+ *
+ * $Id: pnc2000.c,v 1.17 2004/11/16 18:29:02 dwmw2 Exp $
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/partitions.h>
+
+
+#define WINDOW_ADDR 0xbf000000
+#define WINDOW_SIZE 0x00400000
+
+/*
+ * MAP DRIVER STUFF
+ */
+
+
+static struct map_info pnc_map = {
+ .name = "PNC-2000",
+ .size = WINDOW_SIZE,
+ .bankwidth = 4,
+ .phys = 0xFFFFFFFF,
+ .virt = (void __iomem *)WINDOW_ADDR,
+};
+
+
+/*
+ * MTD 'PARTITIONING' STUFF
+ */
+static struct mtd_partition pnc_partitions[3] = {
+ {
+ .name = "PNC-2000 boot firmware",
+ .size = 0x20000,
+ .offset = 0
+ },
+ {
+ .name = "PNC-2000 kernel",
+ .size = 0x1a0000,
+ .offset = 0x20000
+ },
+ {
+ .name = "PNC-2000 filesystem",
+ .size = 0x240000,
+ .offset = 0x1c0000
+ }
+};
+
+/*
+ * This is the master MTD device for which all the others are just
+ * auto-relocating aliases.
+ */
+static struct mtd_info *mymtd;
+
+static int __init init_pnc2000(void)
+{
+ printk(KERN_NOTICE "Photron PNC-2000 flash mapping: %x at %x\n", WINDOW_SIZE, WINDOW_ADDR);
+
+ simple_map_init(&pnc_map);
+
+ mymtd = do_map_probe("cfi_probe", &pnc_map);
+ if (mymtd) {
+ mymtd->owner = THIS_MODULE;
+ return add_mtd_partitions(mymtd, pnc_partitions, 3);
+ }
+
+ return -ENXIO;
+}
+
+static void __exit cleanup_pnc2000(void)
+{
+ if (mymtd) {
+ del_mtd_partitions(mymtd);
+ map_destroy(mymtd);
+ }
+}
+
+module_init(init_pnc2000);
+module_exit(cleanup_pnc2000);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Crossnet Co. <info@crossnet.co.jp>");
+MODULE_DESCRIPTION("MTD map driver for Photron PNC-2000 board");