From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@ppc970.osdl.org>
Date: Sat, 16 Apr 2005 15:20:36 -0700
Subject: Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
---
 drivers/mtd/maps/h720x-flash.c | 144 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 144 insertions(+)
 create mode 100644 drivers/mtd/maps/h720x-flash.c

(limited to 'drivers/mtd/maps/h720x-flash.c')

diff --git a/drivers/mtd/maps/h720x-flash.c b/drivers/mtd/maps/h720x-flash.c
new file mode 100644
index 00000000000..c73828171d9
--- /dev/null
+++ b/drivers/mtd/maps/h720x-flash.c
@@ -0,0 +1,144 @@
+/*
+ * Flash memory access on Hynix GMS30C7201/HMS30C7202 based 
+ * evaluation boards
+ * 
+ * $Id: h720x-flash.c,v 1.11 2004/11/04 13:24:14 gleixner Exp $
+ *
+ * (C) 2002 Jungjun Kim <jungjun.kim@hynix.com>
+ *     2003 Thomas Gleixner <tglx@linutronix.de>	
+ */
+
+#include <linux/config.h>
+#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 <asm/hardware.h>
+#include <asm/io.h>
+
+static struct mtd_info *mymtd;
+
+static struct map_info h720x_map = {
+	.name =		"H720X",
+	.bankwidth =	4,
+	.size =		FLASH_SIZE,
+	.phys =		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  (sizeof(h720x_partitions)/sizeof(h720x_partitions[0]))
+
+static int                   nr_mtd_parts;
+static struct mtd_partition *mtd_parts;
+static const char *probes[] = { "cmdlinepart", NULL };
+
+/*
+ * Initialize FLASH support
+ */
+int __init h720x_mtd_init(void)
+{
+
+	char	*part_type = NULL;
+	
+	h720x_map.virt = ioremap(FLASH_PHYS, FLASH_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;
+
+#ifdef CONFIG_MTD_PARTITIONS
+		nr_mtd_parts = parse_mtd_partitions(mymtd, probes, &mtd_parts, 0);
+		if (nr_mtd_parts > 0)
+			part_type = "command line";
+#endif
+		if (nr_mtd_parts <= 0) {
+			mtd_parts = h720x_partitions;
+			nr_mtd_parts = NUM_PARTITIONS;
+			part_type = "builtin";
+		}
+		printk(KERN_INFO "Using %s partition table\n", part_type);
+		add_mtd_partitions(mymtd, mtd_parts, nr_mtd_parts);
+		return 0;
+	}
+
+	iounmap((void *)h720x_map.virt);
+	return -ENXIO;
+}
+
+/*
+ * Cleanup
+ */
+static void __exit h720x_mtd_cleanup(void)
+{
+
+	if (mymtd) {
+		del_mtd_partitions(mymtd);
+		map_destroy(mymtd);
+	}
+	
+	/* Free partition info, if commandline partition was used */
+	if (mtd_parts && (mtd_parts != h720x_partitions))
+		kfree (mtd_parts);
+	
+	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");
-- 
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