1 files changed, 151 insertions, 0 deletions
diff --git a/linux-2.4.x/drivers/mtd/maps/ocotea.c b/linux-2.4.x/drivers/mtd/maps/ocotea.c
new file mode 100644
index 0000000..a21fcd1
--- /dev/null
+++ b/linux-2.4.x/drivers/mtd/maps/ocotea.c
@@ -0,0 +1,151 @@
+/*
+ * Mapping for Ocotea user flash
+ *
+ * Matt Porter <mporter@kernel.crashing.org>
+ *
+ * Copyright 2002-2004 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 as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/partitions.h>
+#include <linux/config.h>
+#include <asm/io.h>
+#include <asm/ibm44x.h>
+#include <platforms/4xx/ocotea.h>
+
+static struct mtd_info *flash;
+
+static struct map_info ocotea_small_map = {
+	.name =		"Ocotea small flash",
+	.size =		OCOTEA_SMALL_FLASH_SIZE,
+	.buswidth =	1,
+};
+
+static struct map_info ocotea_large_map = {
+	.name =		"Ocotea large flash",
+	.size =		OCOTEA_LARGE_FLASH_SIZE,
+	.buswidth =	1,
+};
+
+static struct mtd_partition ocotea_small_partitions[] = {
+	{
+		.name =   "pibs",
+		.offset = 0x0,
+		.size =   0x100000,
+	}
+};
+
+static struct mtd_partition ocotea_large_partitions[] = {
+	{
+		.name =   "fs",
+		.offset = 0,
+		.size =   0x300000,
+	},
+	{
+		.name =   "firmware",
+		.offset = 0x300000,
+		.size =   0x100000,
+	}
+};
+
+int __init init_ocotea(void)
+{
+	u8 fpga0_reg;
+	u8 *fpga0_adr;
+	unsigned long long small_flash_base, large_flash_base;
+
+	fpga0_adr = ioremap64(OCOTEA_FPGA_ADDR, 16);
+	if (!fpga0_adr)
+		return -ENOMEM;
+
+	fpga0_reg = readb((unsigned long)fpga0_adr);
+	iounmap(fpga0_adr);
+
+	if (OCOTEA_BOOT_LARGE_FLASH(fpga0_reg)) {
+		small_flash_base = OCOTEA_SMALL_FLASH_HIGH;
+		large_flash_base = OCOTEA_LARGE_FLASH_LOW;
+	}
+	else {
+		small_flash_base = OCOTEA_SMALL_FLASH_LOW;
+		large_flash_base = OCOTEA_LARGE_FLASH_HIGH;
+	}
+
+	ocotea_small_map.phys = small_flash_base;
+	ocotea_small_map.virt = ioremap64(small_flash_base,
+					 ocotea_small_map.size);
+
+	if (!ocotea_small_map.virt) {
+		printk("Failed to ioremap flash\n");
+		return -EIO;
+	}
+
+	simple_map_init(&ocotea_small_map);
+
+	flash = do_map_probe("map_rom", &ocotea_small_map);
+	if (flash) {
+		flash->owner = THIS_MODULE;
+		add_mtd_partitions(flash, ocotea_small_partitions,
+					ARRAY_SIZE(ocotea_small_partitions));
+	} else {
+		printk("map probe failed for flash\n");
+		return -ENXIO;
+	}
+
+	ocotea_large_map.phys = large_flash_base;
+	ocotea_large_map.virt = ioremap64(large_flash_base,
+					 ocotea_large_map.size);
+
+	if (!ocotea_large_map.virt) {
+		printk("Failed to ioremap flash\n");
+		return -EIO;
+	}
+
+	simple_map_init(&ocotea_large_map);
+
+	flash = do_map_probe("cfi_probe", &ocotea_large_map);
+	if (flash) {
+		flash->owner = THIS_MODULE;
+		add_mtd_partitions(flash, ocotea_large_partitions,
+					ARRAY_SIZE(ocotea_large_partitions));
+	} else {
+		printk("map probe failed for flash\n");
+		return -ENXIO;
+	}
+
+	return 0;
+}
+
+static void __exit cleanup_ocotea(void)
+{
+	if (flash) {
+		del_mtd_partitions(flash);
+		map_destroy(flash);
+	}
+
+	if (ocotea_small_map.virt) {
+		iounmap((void *)ocotea_small_map.virt);
+		ocotea_small_map.virt = 0;
+	}
+
+	if (ocotea_large_map.virt) {
+		iounmap((void *)ocotea_large_map.virt);
+		ocotea_large_map.virt = 0;
+	}
+}
+
+module_init(init_ocotea);
+module_exit(cleanup_ocotea);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Matt Porter <mporter@kernel.crashing.org>");
+MODULE_DESCRIPTION("MTD map and partitions for IBM 440GX Ocotea boards");