[rdc] add better support for the RDC R8610 evaluation board: ide, rtc, super I/O

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@15651 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 97 insertions, 0 deletions

diff --git a/target/linux/rdc/files-2.6.28/drivers/mtd/maps/r8610.c b/target/linux/rdc/files-2.6.28/drivers/mtd/maps/r8610.c
new file mode 100644
index 000000000..4401bfff1
--- /dev/null
+++ b/target/linux/rdc/files-2.6.28/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");