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path: root/drivers/mtd/maps/pq2fads.c
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Diffstat (limited to 'drivers/mtd/maps/pq2fads.c')
-rw-r--r--drivers/mtd/maps/pq2fads.c88
1 files changed, 88 insertions, 0 deletions
diff --git a/drivers/mtd/maps/pq2fads.c b/drivers/mtd/maps/pq2fads.c
new file mode 100644
index 000000000000..fb78d87cc130
--- /dev/null
+++ b/drivers/mtd/maps/pq2fads.c
@@ -0,0 +1,88 @@
+/*
+ * drivers/mtd/maps/pq2fads.c
+ *
+ * Mapping for the flash SIMM on 8272ADS and PQ2FADS board
+ *
+ * Author: Vitaly Bordug <vbordug@ru.mvista.com>
+ *
+ * 2005 (c) MontaVista Software, Inc. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <asm/io.h>
+#include <asm/ppcboot.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+
+/*
+ NOTE: bank width and interleave relative to the installed flash
+ should have been chosen within MTD_CFI_GEOMETRY options.
+ */
+#define PQ2FADS_BANK_WIDTH 4
+
+static struct mtd_partition pq2fads_partitions[] = {
+ {
+#ifdef CONFIG_ADS8272
+ .name = "HRCW",
+ .size = 0x40000,
+ .offset = 0,
+ .mask_flags = MTD_WRITEABLE, /* force read-only */
+ }, {
+ .name = "User FS",
+ .size = 0x5c0000,
+ .offset = 0x40000,
+#else
+ .name = "User FS",
+ .size = 0x600000,
+ .offset = 0,
+#endif
+ }, {
+ .name = "uImage",
+ .size = 0x100000,
+ .offset = 0x600000,
+ .mask_flags = MTD_WRITEABLE, /* force read-only */
+ }, {
+ .name = "bootloader",
+ .size = 0x40000,
+ .offset = 0x700000,
+ .mask_flags = MTD_WRITEABLE, /* force read-only */
+ }, {
+ .name = "bootloader env",
+ .size = 0x40000,
+ .offset = 0x740000,
+ .mask_flags = MTD_WRITEABLE, /* force read-only */
+ }
+};
+
+
+/* pointer to MPC885ADS board info data */
+extern unsigned char __res[];
+
+static int __init init_pq2fads_mtd(void)
+{
+ bd_t *bd = (bd_t *)__res;
+ physmap_configure(bd->bi_flashstart, bd->bi_flashsize, PQ2FADS_BANK_WIDTH, NULL);
+
+ physmap_set_partitions(pq2fads_partitions,
+ sizeof (pq2fads_partitions) /
+ sizeof (pq2fads_partitions[0]));
+ return 0;
+}
+
+static void __exit cleanup_pq2fads_mtd(void)
+{
+}
+
+module_init(init_pq2fads_mtd);
+module_exit(cleanup_pq2fads_mtd);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("MTD map and partitions for MPC8272ADS boards");