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, 168 insertions, 0 deletions

diff --git a/drivers/mtd/maps/lubbock-flash.c b/drivers/mtd/maps/lubbock-flash.c
new file mode 100644
index 00000000000..1298de475c9
--- /dev/null
+++ b/drivers/mtd/maps/lubbock-flash.c
@@ -0,0 +1,168 @@
+/*
+ * $Id: lubbock-flash.c,v 1.19 2004/11/04 13:24:15 gleixner Exp $
+ *
+ * Map driver for the Lubbock developer platform.
+ *
+ * Author:	Nicolas Pitre
+ * Copyright:	(C) 2001 MontaVista Software Inc.
+ * 
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/dma-mapping.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/partitions.h>
+#include <asm/io.h>
+#include <asm/hardware.h>
+#include <asm/arch/pxa-regs.h>
+#include <asm/arch/lubbock.h>
+
+
+#define ROM_ADDR	0x00000000
+#define FLASH_ADDR	0x04000000
+
+#define WINDOW_SIZE 	64*1024*1024
+
+static void lubbock_map_inval_cache(struct map_info *map, unsigned long from, ssize_t len)
+{
+	consistent_sync((char *)map->cached + from, len, DMA_FROM_DEVICE);
+}
+
+static struct map_info lubbock_maps[2] = { {
+	.size =		WINDOW_SIZE,
+	.phys =		0x00000000,
+	.inval_cache = 	lubbock_map_inval_cache,
+}, {
+	.size =		WINDOW_SIZE,
+	.phys =		0x04000000,
+	.inval_cache = 	lubbock_map_inval_cache,
+} };
+
+static struct mtd_partition lubbock_partitions[] = {
+	{
+		.name =		"Bootloader",
+		.size =		0x00040000,
+		.offset =	0,
+		.mask_flags =	MTD_WRITEABLE  /* force read-only */
+	},{
+		.name =		"Kernel",
+		.size =		0x00100000,
+		.offset =	0x00040000,
+	},{
+		.name =		"Filesystem",
+		.size =		MTDPART_SIZ_FULL,
+		.offset =	0x00140000
+	}
+};
+
+static struct mtd_info *mymtds[2];
+static struct mtd_partition *parsed_parts[2];
+static int nr_parsed_parts[2];
+
+static const char *probes[] = { "RedBoot", "cmdlinepart", NULL };
+
+static int __init init_lubbock(void)
+{
+	int flashboot = (LUB_CONF_SWITCHES & 1);
+	int ret = 0, i;
+
+	lubbock_maps[0].bankwidth = lubbock_maps[1].bankwidth = 
+		(BOOT_DEF & 1) ? 2 : 4;
+
+	/* Compensate for the nROMBT switch which swaps the flash banks */
+	printk(KERN_NOTICE "Lubbock configured to boot from %s (bank %d)\n",
+	       flashboot?"Flash":"ROM", flashboot);
+
+	lubbock_maps[flashboot^1].name = "Lubbock Application Flash";
+	lubbock_maps[flashboot].name = "Lubbock Boot ROM";
+
+	for (i = 0; i < 2; i++) {
+		lubbock_maps[i].virt = ioremap(lubbock_maps[i].phys, WINDOW_SIZE);
+		if (!lubbock_maps[i].virt) {
+			printk(KERN_WARNING "Failed to ioremap %s\n", lubbock_maps[i].name);
+			if (!ret)
+				ret = -ENOMEM;
+			continue;
+		}
+		lubbock_maps[i].cached = ioremap_cached(lubbock_maps[i].phys, WINDOW_SIZE);
+		if (!lubbock_maps[i].cached)
+			printk(KERN_WARNING "Failed to ioremap cached %s\n", lubbock_maps[i].name);
+		simple_map_init(&lubbock_maps[i]);
+
+		printk(KERN_NOTICE "Probing %s at physical address 0x%08lx (%d-bit bankwidth)\n",
+		       lubbock_maps[i].name, lubbock_maps[i].phys, 
+		       lubbock_maps[i].bankwidth * 8);
+
+		mymtds[i] = do_map_probe("cfi_probe", &lubbock_maps[i]);
+		
+		if (!mymtds[i]) {
+			iounmap((void *)lubbock_maps[i].virt);
+			if (lubbock_maps[i].cached)
+				iounmap(lubbock_maps[i].cached);
+			if (!ret)
+				ret = -EIO;
+			continue;
+		}
+		mymtds[i]->owner = THIS_MODULE;
+
+		ret = parse_mtd_partitions(mymtds[i], probes,
+					   &parsed_parts[i], 0);
+
+		if (ret > 0)
+			nr_parsed_parts[i] = ret;
+	}
+
+	if (!mymtds[0] && !mymtds[1])
+		return ret;
+	
+	for (i = 0; i < 2; i++) {
+		if (!mymtds[i]) {
+			printk(KERN_WARNING "%s is absent. Skipping\n", lubbock_maps[i].name);
+		} else if (nr_parsed_parts[i]) {
+			add_mtd_partitions(mymtds[i], parsed_parts[i], nr_parsed_parts[i]);
+		} else if (!i) {
+			printk("Using static partitions on %s\n", lubbock_maps[i].name);
+			add_mtd_partitions(mymtds[i], lubbock_partitions, ARRAY_SIZE(lubbock_partitions));
+		} else {
+			printk("Registering %s as whole device\n", lubbock_maps[i].name);
+			add_mtd_device(mymtds[i]);
+		}
+	}
+	return 0;
+}
+
+static void __exit cleanup_lubbock(void)
+{
+	int i;
+	for (i = 0; i < 2; i++) {
+		if (!mymtds[i])
+			continue;
+
+		if (nr_parsed_parts[i] || !i)
+			del_mtd_partitions(mymtds[i]);
+		else
+			del_mtd_device(mymtds[i]);			
+
+		map_destroy(mymtds[i]);
+		iounmap((void *)lubbock_maps[i].virt);
+		if (lubbock_maps[i].cached)
+			iounmap(lubbock_maps[i].cached);
+
+		if (parsed_parts[i])
+			kfree(parsed_parts[i]);
+	}
+}
+
+module_init(init_lubbock);
+module_exit(cleanup_lubbock);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Nicolas Pitre <nico@cam.org>");
+MODULE_DESCRIPTION("MTD map driver for Intel Lubbock");