Linux-2.6.12-rc2v2.6.12-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!

1 files changed, 217 insertions, 0 deletions

diff --git a/drivers/mtd/maps/integrator-flash.c b/drivers/mtd/maps/integrator-flash.c
new file mode 100644
index 000000000000..e39a98a0171c
--- /dev/null
+++ b/drivers/mtd/maps/integrator-flash.c
@@ -0,0 +1,217 @@
+/*======================================================================
+
+    drivers/mtd/maps/integrator-flash.c: ARM Integrator flash map driver
+  
+    Copyright (C) 2000 ARM Limited
+    Copyright (C) 2003 Deep Blue Solutions Ltd.
+  
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+  
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+  
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+  
+   This is access code for flashes using ARM's flash partitioning 
+   standards.
+
+   $Id: integrator-flash.c,v 1.18 2004/11/01 13:26:15 rmk Exp $
+
+======================================================================*/
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/ioport.h>
+#include <linux/device.h>
+#include <linux/init.h>
+
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/partitions.h>
+
+#include <asm/mach/flash.h>
+#include <asm/hardware.h>
+#include <asm/io.h>
+#include <asm/system.h>
+
+#ifdef CONFIG_ARCH_P720T
+#define FLASH_BASE		(0x04000000)
+#define FLASH_SIZE		(64*1024*1024)
+#endif
+
+struct armflash_info {
+	struct flash_platform_data *plat;
+	struct resource		*res;
+	struct mtd_partition	*parts;
+	struct mtd_info		*mtd;
+	struct map_info		map;
+};
+
+static void armflash_set_vpp(struct map_info *map, int on)
+{
+	struct armflash_info *info = container_of(map, struct armflash_info, map);
+
+	if (info->plat && info->plat->set_vpp)
+		info->plat->set_vpp(on);
+}
+
+static const char *probes[] = { "cmdlinepart", "RedBoot", "afs", NULL };
+
+static int armflash_probe(struct device *_dev)
+{
+	struct platform_device *dev = to_platform_device(_dev);
+	struct flash_platform_data *plat = dev->dev.platform_data;
+	struct resource *res = dev->resource;
+	unsigned int size = res->end - res->start + 1;
+	struct armflash_info *info;
+	int err;
+	void __iomem *base;
+
+	info = kmalloc(sizeof(struct armflash_info), GFP_KERNEL);
+	if (!info) {
+		err = -ENOMEM;
+		goto out;
+	}
+
+	memset(info, 0, sizeof(struct armflash_info));
+
+	info->plat = plat;
+	if (plat && plat->init) {
+		err = plat->init();
+		if (err)
+			goto no_resource;
+	}
+
+	info->res = request_mem_region(res->start, size, "armflash");
+	if (!info->res) {
+		err = -EBUSY;
+		goto no_resource;
+	}
+
+	base = ioremap(res->start, size);
+	if (!base) {
+		err = -ENOMEM;
+		goto no_mem;
+	}
+
+	/*
+	 * look for CFI based flash parts fitted to this board
+	 */
+	info->map.size		= size;
+	info->map.bankwidth	= plat->width;
+	info->map.phys		= res->start;
+	info->map.virt		= base;
+	info->map.name		= dev->dev.bus_id;
+	info->map.set_vpp	= armflash_set_vpp;
+
+	simple_map_init(&info->map);
+
+	/*
+	 * Also, the CFI layer automatically works out what size
+	 * of chips we have, and does the necessary identification
+	 * for us automatically.
+	 */
+	info->mtd = do_map_probe(plat->map_name, &info->map);
+	if (!info->mtd) {
+		err = -ENXIO;
+		goto no_device;
+	}
+
+	info->mtd->owner = THIS_MODULE;
+
+	err = parse_mtd_partitions(info->mtd, probes, &info->parts, 0);
+	if (err > 0) {
+		err = add_mtd_partitions(info->mtd, info->parts, err);
+		if (err)
+			printk(KERN_ERR
+			       "mtd partition registration failed: %d\n", err);
+	}
+
+	if (err == 0)
+		dev_set_drvdata(&dev->dev, info);
+
+	/*
+	 * If we got an error, free all resources.
+	 */
+	if (err < 0) {
+		if (info->mtd) {
+			del_mtd_partitions(info->mtd);
+			map_destroy(info->mtd);
+		}
+		if (info->parts)
+			kfree(info->parts);
+
+ no_device:
+		iounmap(base);
+ no_mem:
+		release_mem_region(res->start, size);
+ no_resource:
+		if (plat && plat->exit)
+			plat->exit();
+		kfree(info);
+	}
+ out:
+	return err;
+}
+
+static int armflash_remove(struct device *_dev)
+{
+	struct platform_device *dev = to_platform_device(_dev);
+	struct armflash_info *info = dev_get_drvdata(&dev->dev);
+
+	dev_set_drvdata(&dev->dev, NULL);
+
+	if (info) {
+		if (info->mtd) {
+			del_mtd_partitions(info->mtd);
+			map_destroy(info->mtd);
+		}
+		if (info->parts)
+			kfree(info->parts);
+
+		iounmap(info->map.virt);
+		release_resource(info->res);
+		kfree(info->res);
+
+		if (info->plat && info->plat->exit)
+			info->plat->exit();
+
+		kfree(info);
+	}
+
+	return 0;
+}
+
+static struct device_driver armflash_driver = {
+	.name		= "armflash",
+	.bus		= &platform_bus_type,
+	.probe		= armflash_probe,
+	.remove		= armflash_remove,
+};
+
+static int __init armflash_init(void)
+{
+	return driver_register(&armflash_driver);
+}
+
+static void __exit armflash_exit(void)
+{
+	driver_unregister(&armflash_driver);
+}
+
+module_init(armflash_init);
+module_exit(armflash_exit);
+
+MODULE_AUTHOR("ARM Ltd");
+MODULE_DESCRIPTION("ARM Integrator CFI map driver");
+MODULE_LICENSE("GPL");