[rdc] move files-2.6.28 to files

[openwrt.git] / target / linux / rdc / files / drivers / mtd / maps / r8610.c

diff --git a/target/linux/rdc/files/drivers/mtd/maps/r8610.c b/target/linux/rdc/files/drivers/mtd/maps/r8610.c
new file mode 100644 (file)
index 0000000..4401bff
--- /dev/null
+++ b/target/linux/rdc/files/drivers/mtd/maps/r8610.c
@@ -0,0 +1,97 @@
+/*
+ * Flash memory access on RDC R8610 Evaluation board
+ *
+ * (C) 2009, Florian Fainelli
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/partitions.h>
+
+#include <asm/io.h>
+
+static struct map_info r8610_map = {
+       .name           = "r8610",
+       .size           = CONFIG_MTD_RDC3210_SIZE,
+       .bankwidth      = CONFIG_MTD_RDC3210_BUSWIDTH,
+};
+
+static struct mtd_partition r8610_partitions[] = {
+        {
+                .name = "Kernel",
+                .size = 0x001f0000,
+                .offset = 0
+        },{
+                .name = "Config",
+                .size = 0x10000,
+               .offset = MTDPART_OFS_APPEND,
+        },{
+                .name = "Initrd",
+               .size = 0x1E0000, 
+               .offset = MTDPART_OFS_APPEND,
+        },{
+               .name = "Redboot",
+               .size = 0x20000,
+               .offset = MTDPART_OFS_APPEND,
+               .mask_flags = MTD_WRITEABLE
+       }
+};
+
+static struct mtd_info *mymtd;
+
+int __init r8610_mtd_init(void)
+{
+       struct mtd_partition *parts;
+       int nb_parts = 0;
+
+       /*
+        * Static partition definition selection
+        */
+       parts = r8610_partitions;
+       nb_parts = ARRAY_SIZE(r8610_partitions);
+
+       /*
+        * Now let's probe for the actual flash.  Do it here since
+        * specific machine settings might have been set above.
+        */
+       r8610_map.phys = -r8610_map.size;
+       printk(KERN_NOTICE "r8610: flash device: %lx at %x\n", r8610_map.size, r8610_map.phys);
+
+       r8610_map.map_priv_1 = (unsigned long)(r8610_map.virt = ioremap_nocache(r8610_map.phys, r8610_map.size));
+       if (!r8610_map.map_priv_1) {
+                printk(KERN_ERR "Failed to ioremap\n");
+                return -EIO;
+       }
+
+       mymtd = do_map_probe("cfi_probe", &r8610_map);
+       if (!mymtd) {
+               iounmap(r8610_map.virt);
+               return -ENXIO;
+       }
+       mymtd->owner = THIS_MODULE;
+
+       add_mtd_partitions(mymtd, parts, nb_parts);
+
+       return 0;
+}
+
+static void __exit r8610_mtd_cleanup(void)
+{
+       if (mymtd) {
+               del_mtd_partitions(mymtd);
+               map_destroy(mymtd);
+               iounmap(r8610_map.virt);
+       }
+}
+
+module_init(r8610_mtd_init);
+module_exit(r8610_mtd_cleanup);
+
+MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
+MODULE_DESCRIPTION("RDC R8610 MTD driver");
+MODULE_LICENSE("GPL");