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, 181 insertions, 0 deletions

diff --git a/drivers/mtd/maps/wr_sbc82xx_flash.c b/drivers/mtd/maps/wr_sbc82xx_flash.c
new file mode 100644
index 00000000000..82b887b0570
--- /dev/null
+++ b/drivers/mtd/maps/wr_sbc82xx_flash.c
@@ -0,0 +1,181 @@
+/*
+ * $Id: wr_sbc82xx_flash.c,v 1.7 2004/11/04 13:24:15 gleixner Exp $
+ *
+ * Map for flash chips on Wind River PowerQUICC II SBC82xx board.
+ *
+ * Copyright (C) 2004 Red Hat, Inc.
+ *
+ * Author: David Woodhouse <dwmw2@infradead.org>
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <asm/io.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/config.h>
+#include <linux/mtd/partitions.h>
+
+#include <asm/immap_cpm2.h>
+
+static struct mtd_info *sbcmtd[3];
+static struct mtd_partition *sbcmtd_parts[3];
+
+struct map_info sbc82xx_flash_map[3] = {
+	{.name = "Boot flash"},
+	{.name = "Alternate boot flash"},
+	{.name = "User flash"}
+};
+
+static struct mtd_partition smallflash_parts[] = {
+	{
+		.name =		"space",
+		.size =		0x100000,
+		.offset =	0,
+	}, {
+		.name =		"bootloader",
+		.size =		MTDPART_SIZ_FULL,
+		.offset =	MTDPART_OFS_APPEND,
+	}
+};
+
+static struct mtd_partition bigflash_parts[] = {
+	{
+		.name =		"bootloader",
+		.size =		0x00100000,
+		.offset =	0,
+	}, {
+		.name =		"file system",
+		.size =		0x01f00000,
+		.offset =	MTDPART_OFS_APPEND,
+	}, {
+		.name =		"boot config",
+		.size =		0x00100000,
+		.offset =	MTDPART_OFS_APPEND,
+	}, {
+		.name =		"space",
+		.size =		0x01f00000,
+		.offset =	MTDPART_OFS_APPEND,
+	}
+};
+
+static const char *part_probes[] __initdata = {"cmdlinepart", "RedBoot", NULL};
+
+#define init_sbc82xx_one_flash(map, br, or)			\
+do {								\
+	(map).phys = (br & 1) ? (br & 0xffff8000) : 0;		\
+	(map).size = (br & 1) ? (~(or & 0xffff8000) + 1) : 0;	\
+	switch (br & 0x00001800) {				\
+	case 0x00000000:					\
+	case 0x00000800:	(map).bankwidth = 1;	break;	\
+	case 0x00001000:	(map).bankwidth = 2;	break;	\
+	case 0x00001800:	(map).bankwidth = 4;	break;	\
+	}							\
+} while (0);
+
+int __init init_sbc82xx_flash(void)
+{
+	volatile memctl_cpm2_t *mc = &cpm2_immr->im_memctl;
+	int bigflash;
+	int i;
+
+#ifdef CONFIG_SBC8560
+	mc = ioremap(0xff700000 + 0x5000, sizeof(memctl_cpm2_t));
+#else
+	mc = &cpm2_immr->im_memctl;
+#endif
+
+	bigflash = 1;
+	if ((mc->memc_br0 & 0x00001800) == 0x00001800)
+		bigflash = 0;
+
+	init_sbc82xx_one_flash(sbc82xx_flash_map[0], mc->memc_br0, mc->memc_or0);
+	init_sbc82xx_one_flash(sbc82xx_flash_map[1], mc->memc_br6, mc->memc_or6);
+	init_sbc82xx_one_flash(sbc82xx_flash_map[2], mc->memc_br1, mc->memc_or1);
+
+#ifdef CONFIG_SBC8560
+	iounmap((void *) mc);
+#endif
+
+	for (i=0; i<3; i++) {
+		int8_t flashcs[3] = { 0, 6, 1 };
+		int nr_parts;
+
+		printk(KERN_NOTICE "PowerQUICC II %s (%ld MiB on CS%d",
+		       sbc82xx_flash_map[i].name,
+		       (sbc82xx_flash_map[i].size >> 20),
+		       flashcs[i]);
+		if (!sbc82xx_flash_map[i].phys) {
+			/* We know it can't be at zero. */
+			printk("): disabled by bootloader.\n");
+			continue;
+		}
+		printk(" at %08lx)\n",  sbc82xx_flash_map[i].phys);
+
+		sbc82xx_flash_map[i].virt = ioremap(sbc82xx_flash_map[i].phys, sbc82xx_flash_map[i].size);
+
+		if (!sbc82xx_flash_map[i].virt) {
+			printk("Failed to ioremap\n");
+			continue;
+		}
+
+		simple_map_init(&sbc82xx_flash_map[i]);
+
+		sbcmtd[i] = do_map_probe("cfi_probe", &sbc82xx_flash_map[i]);
+
+		if (!sbcmtd[i])
+			continue;
+
+		sbcmtd[i]->owner = THIS_MODULE;
+
+		nr_parts = parse_mtd_partitions(sbcmtd[i], part_probes,
+						&sbcmtd_parts[i], 0);
+		if (nr_parts > 0) {
+			add_mtd_partitions (sbcmtd[i], sbcmtd_parts[i], nr_parts);
+			continue;
+		}
+
+		/* No partitioning detected. Use default */
+		if (i == 2) {
+			add_mtd_device(sbcmtd[i]);
+		} else if (i == bigflash) {
+			add_mtd_partitions (sbcmtd[i], bigflash_parts, ARRAY_SIZE(bigflash_parts));
+		} else {
+			add_mtd_partitions (sbcmtd[i], smallflash_parts, ARRAY_SIZE(smallflash_parts));
+		}
+	}
+	return 0;
+}
+
+static void __exit cleanup_sbc82xx_flash(void)
+{
+	int i;
+
+	for (i=0; i<3; i++) {
+		if (!sbcmtd[i])
+			continue;
+
+		if (i<2 || sbcmtd_parts[i])
+			del_mtd_partitions(sbcmtd[i]);
+		else
+			del_mtd_device(sbcmtd[i]);
+			
+		kfree(sbcmtd_parts[i]);
+		map_destroy(sbcmtd[i]);
+		
+		iounmap((void *)sbc82xx_flash_map[i].virt);
+		sbc82xx_flash_map[i].virt = 0;
+	}
+}
+
+module_init(init_sbc82xx_flash);
+module_exit(cleanup_sbc82xx_flash);
+
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");
+MODULE_DESCRIPTION("Flash map driver for WindRiver PowerQUICC II");