zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/drivers/mtd/maps/h720x-flash.c b/ap/os/linux/linux-3.4.x/drivers/mtd/maps/h720x-flash.c
new file mode 100644
index 0000000..8ed6cb4
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/mtd/maps/h720x-flash.c
@@ -0,0 +1,120 @@
+/*
+ * Flash memory access on Hynix GMS30C7201/HMS30C7202 based
+ * evaluation boards
+ *
+ * (C) 2002 Jungjun Kim <jungjun.kim@hynix.com>
+ * 2003 Thomas Gleixner <tglx@linutronix.de>
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/partitions.h>
+#include <mach/hardware.h>
+#include <asm/io.h>
+
+static struct mtd_info *mymtd;
+
+static struct map_info h720x_map = {
+ .name = "H720X",
+ .bankwidth = 4,
+ .size = H720X_FLASH_SIZE,
+ .phys = H720X_FLASH_PHYS,
+};
+
+static struct mtd_partition h720x_partitions[] = {
+ {
+ .name = "ArMon",
+ .size = 0x00080000,
+ .offset = 0,
+ .mask_flags = MTD_WRITEABLE
+ },{
+ .name = "Env",
+ .size = 0x00040000,
+ .offset = 0x00080000,
+ .mask_flags = MTD_WRITEABLE
+ },{
+ .name = "Kernel",
+ .size = 0x00180000,
+ .offset = 0x000c0000,
+ .mask_flags = MTD_WRITEABLE
+ },{
+ .name = "Ramdisk",
+ .size = 0x00400000,
+ .offset = 0x00240000,
+ .mask_flags = MTD_WRITEABLE
+ },{
+ .name = "jffs2",
+ .size = MTDPART_SIZ_FULL,
+ .offset = MTDPART_OFS_APPEND
+ }
+};
+
+#define NUM_PARTITIONS ARRAY_SIZE(h720x_partitions)
+
+/*
+ * Initialize FLASH support
+ */
+static int __init h720x_mtd_init(void)
+{
+ h720x_map.virt = ioremap(h720x_map.phys, h720x_map.size);
+
+ if (!h720x_map.virt) {
+ printk(KERN_ERR "H720x-MTD: ioremap failed\n");
+ return -EIO;
+ }
+
+ simple_map_init(&h720x_map);
+
+ // Probe for flash bankwidth 4
+ printk (KERN_INFO "H720x-MTD probing 32bit FLASH\n");
+ mymtd = do_map_probe("cfi_probe", &h720x_map);
+ if (!mymtd) {
+ printk (KERN_INFO "H720x-MTD probing 16bit FLASH\n");
+ // Probe for bankwidth 2
+ h720x_map.bankwidth = 2;
+ mymtd = do_map_probe("cfi_probe", &h720x_map);
+ }
+
+ if (mymtd) {
+ mymtd->owner = THIS_MODULE;
+
+ mtd_device_parse_register(mymtd, NULL, NULL,
+ h720x_partitions, NUM_PARTITIONS);
+ return 0;
+ }
+
+ iounmap((void *)h720x_map.virt);
+ return -ENXIO;
+}
+
+/*
+ * Cleanup
+ */
+static void __exit h720x_mtd_cleanup(void)
+{
+
+ if (mymtd) {
+ mtd_device_unregister(mymtd);
+ map_destroy(mymtd);
+ }
+
+ if (h720x_map.virt) {
+ iounmap((void *)h720x_map.virt);
+ h720x_map.virt = 0;
+ }
+}
+
+
+module_init(h720x_mtd_init);
+module_exit(h720x_mtd_cleanup);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Thomas Gleixner <tglx@linutronix.de>");
+MODULE_DESCRIPTION("MTD map driver for Hynix evaluation boards");