zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/drivers/mtd/maps/dbox2-flash.c b/ap/os/linux/linux-3.4.x/drivers/mtd/maps/dbox2-flash.c
new file mode 100644
index 0000000..85bdece
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/mtd/maps/dbox2-flash.c
@@ -0,0 +1,123 @@
+/*
+ * D-Box 2 flash driver
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <asm/io.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/partitions.h>
+#include <linux/errno.h>
+
+/* partition_info gives details on the logical partitions that the split the
+ * single flash device into. If the size if zero we use up to the end of the
+ * device. */
+static struct mtd_partition partition_info[]= {
+ {
+ .name = "BR bootloader",
+ .size = 128 * 1024,
+ .offset = 0,
+ .mask_flags = MTD_WRITEABLE
+ },
+ {
+ .name = "FLFS (U-Boot)",
+ .size = 128 * 1024,
+ .offset = MTDPART_OFS_APPEND,
+ .mask_flags = 0
+ },
+ {
+ .name = "Root (SquashFS)",
+ .size = 7040 * 1024,
+ .offset = MTDPART_OFS_APPEND,
+ .mask_flags = 0
+ },
+ {
+ .name = "var (JFFS2)",
+ .size = 896 * 1024,
+ .offset = MTDPART_OFS_APPEND,
+ .mask_flags = 0
+ },
+ {
+ .name = "Flash without bootloader",
+ .size = MTDPART_SIZ_FULL,
+ .offset = 128 * 1024,
+ .mask_flags = 0
+ },
+ {
+ .name = "Complete Flash",
+ .size = MTDPART_SIZ_FULL,
+ .offset = 0,
+ .mask_flags = MTD_WRITEABLE
+ }
+};
+
+#define NUM_PARTITIONS ARRAY_SIZE(partition_info)
+
+#define WINDOW_ADDR 0x10000000
+#define WINDOW_SIZE 0x800000
+
+static struct mtd_info *mymtd;
+
+
+struct map_info dbox2_flash_map = {
+ .name = "D-Box 2 flash memory",
+ .size = WINDOW_SIZE,
+ .bankwidth = 4,
+ .phys = WINDOW_ADDR,
+};
+
+static int __init init_dbox2_flash(void)
+{
+ printk(KERN_NOTICE "D-Box 2 flash driver (size->0x%X mem->0x%X)\n", WINDOW_SIZE, WINDOW_ADDR);
+ dbox2_flash_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE);
+
+ if (!dbox2_flash_map.virt) {
+ printk("Failed to ioremap\n");
+ return -EIO;
+ }
+ simple_map_init(&dbox2_flash_map);
+
+ // Probe for dual Intel 28F320 or dual AMD
+ mymtd = do_map_probe("cfi_probe", &dbox2_flash_map);
+ if (!mymtd) {
+ // Probe for single Intel 28F640
+ dbox2_flash_map.bankwidth = 2;
+
+ mymtd = do_map_probe("cfi_probe", &dbox2_flash_map);
+ }
+
+ if (mymtd) {
+ mymtd->owner = THIS_MODULE;
+
+ /* Create MTD devices for each partition. */
+ mtd_device_register(mymtd, partition_info, NUM_PARTITIONS);
+
+ return 0;
+ }
+
+ iounmap((void *)dbox2_flash_map.virt);
+ return -ENXIO;
+}
+
+static void __exit cleanup_dbox2_flash(void)
+{
+ if (mymtd) {
+ mtd_device_unregister(mymtd);
+ map_destroy(mymtd);
+ }
+ if (dbox2_flash_map.virt) {
+ iounmap((void *)dbox2_flash_map.virt);
+ dbox2_flash_map.virt = 0;
+ }
+}
+
+module_init(init_dbox2_flash);
+module_exit(cleanup_dbox2_flash);
+
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Kári Davíðsson <kd@flaga.is>, Bastian Blank <waldi@tuxbox.org>, Alexander Wild <wild@te-elektronik.com>");
+MODULE_DESCRIPTION("MTD map driver for D-Box 2 board");