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linux/debian/patches/arm-iop-mtd-maps.patch

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# Add an MTD maps for IOP3xx boards
# Upstream status: can be solved in a better way as of 2.6.18
diff -urN a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig
--- a/drivers/mtd/maps/Kconfig 2006-08-03 11:39:05.885006500 +0000
+++ b/drivers/mtd/maps/Kconfig 2006-08-07 17:19:06.190596000 +0000
@@ -447,6 +447,14 @@
21285 bridge used with Intel's StrongARM processors. More info at
<http://www.intel.com/design/bridge/docs/21285_documentation.htm>.
+config MTD_IOP3XX
+ tristate "CFI Flash device mapped on the XScale IOP3XX board"
+ depends on ARM && MTD_CFI && ARCH_IOP3XX
+ help
+ This enables access routines for the flash chips on the Intel XScale
+ IOP3XX based evaluation board. If you have one of these boards and
+ would like to use the flash chips on it, say 'Y'.
+
config MTD_IQ80310
tristate "CFI Flash device mapped on the XScale IQ80310 board"
depends on MTD_CFI && ARCH_IQ80310
diff -urN a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile
--- a/drivers/mtd/maps/Makefile 2006-08-03 11:39:05.885006500 +0000
+++ b/drivers/mtd/maps/Makefile 2006-08-07 17:18:53.981833000 +0000
@@ -15,7 +15,7 @@
obj-$(CONFIG_MTD_CSTM_MIPS_IXX) += cstm_mips_ixx.o
obj-$(CONFIG_MTD_DC21285) += dc21285.o
obj-$(CONFIG_MTD_DILNETPC) += dilnetpc.o
-obj-$(CONFIG_MTD_IQ80310) += iq80310.o
+obj-$(CONFIG_MTD_IOP3XX) += iop3xx.o
obj-$(CONFIG_MTD_L440GX) += l440gx.o
obj-$(CONFIG_MTD_AMD76XROM) += amd76xrom.o
obj-$(CONFIG_MTD_ICHXROM) += ichxrom.o
diff -urN a/drivers/mtd/maps/iop3xx.c b/drivers/mtd/maps/iop3xx.c
--- a/drivers/mtd/maps/iop3xx.c 1970-01-01 00:00:00.000000000 +0000
+++ b/drivers/mtd/maps/iop3xx.c 2006-08-07 17:18:53.981833000 +0000
@@ -0,0 +1,150 @@
+/*
+ * $Id: iop3xx.c,v 1.17 2003/06/23 11:48:18 dwmw2 Exp $
+ *
+ * Mapping for Intel XScale IOP3xx based platforms
+ *
+ * Author: Nicolas Pitre
+ * Copyright: (C) 2001-2003 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.
+ *
+ * 09/03: Cleaned up to be generic to all IOP3xx systems - ds
+ *
+ * If you add a new machine type with a different WINDOW_SIZE or
+ * physmap addr, just wrap the init in if(machine_is_X()) { }
+ * and make sure your board header gets included in
+ * include/asm-arm/arch-iop3xx/hardware.h to pick up the definitions.
+ *
+ * DO NOT fill this file with #ifdef CONFIG_ARCH_XXXX crap.
+ */
+
+#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 <asm/mach-types.h>
+#include <asm/hardware.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/partitions.h>
+
+static struct mtd_info *mymtd;
+
+static struct map_info iop3xx_map = {
+ .name = "IOP3xx Flash",
+};
+
+static struct mtd_partition iop3xx_partitions[6] = {
+ {
+ .name = "RedBoot",
+ .size = 0x00040000,
+ .offset = 0,
+ },{
+ .name = "ramdisk",
+ .size = 0x00d00000,
+ .offset = 0x00040000,
+ },{
+ .name = "kernel",
+ .size = 0x00160000,
+ .offset = 0x00d40000
+ },{
+ .name = "user",
+ .size = 0x00120000,
+ .offset = 0x00ea0000
+ },{
+ .name = "RedBoot config",
+ .size = 0x00020000,
+ .offset = 0x00fc0000,
+ // .mask_flags = MTD_WRITEABLE
+ },{
+ .name = "FIS directory",
+ .size = 0x00020000,
+ .offset = 0x00fe0000
+ }
+};
+
+static struct mtd_info *mymtd;
+static struct mtd_partition *parsed_parts;
+static const char *probes[] = { "RedBoot", "cmdlinepart", NULL };
+
+static int __init init_iop3xx(void)
+{
+ struct mtd_partition *parts;
+ int nb_parts = 0;
+ int parsed_nr_parts = 0;
+ int ret;
+
+ if(machine_is_iq80321()) {
+ iop3xx_map.phys = IQ80321_FLASHBASE;
+ iop3xx_map.size = IQ80321_FLASHSIZE;
+ iop3xx_map.bankwidth = IQ80321_FLASHWIDTH;
+ } else if(machine_is_iq31244()) {
+ iop3xx_map.phys = IQ31244_FLASHBASE;
+ iop3xx_map.size = IQ31244_FLASHSIZE;
+ iop3xx_map.bankwidth = IQ31244_FLASHWIDTH;
+ } else if(machine_is_iq80331()) {
+ iop3xx_map.phys = IQ80331_FLASHBASE;
+ iop3xx_map.size = IQ80331_FLASHSIZE;
+ iop3xx_map.bankwidth = IQ80331_FLASHWIDTH;
+ } else if(machine_is_n2100()) {
+ iop3xx_map.phys = N2100_FLASHBASE;
+ iop3xx_map.size = N2100_FLASHSIZE;
+ iop3xx_map.bankwidth = N2100_FLASHWIDTH;
+ } else {
+ printk("Unknown IOP3xx platform - flash access disabled\n");
+ return -ENODEV;
+ }
+
+ iop3xx_map.virt =
+ (unsigned long)ioremap(iop3xx_map.phys, iop3xx_map.size );
+ if (!iop3xx_map.virt) {
+ printk("Failed to ioremap\n");
+ return -EIO;
+ }
+ simple_map_init(&iop3xx_map);
+
+ mymtd = do_map_probe("cfi_probe", &iop3xx_map);
+ if (!mymtd) {
+ iounmap((void *)iop3xx_map.virt);
+ return -ENXIO;
+ }
+ mymtd->owner = THIS_MODULE;
+
+ ret = parse_mtd_partitions(mymtd, probes, &parsed_parts, 0);
+ ret=-1;
+ if (ret > 0)
+ parsed_nr_parts = ret;
+ if (parsed_nr_parts > 0) {
+ parts = parsed_parts;
+ nb_parts = parsed_nr_parts;
+ } else {
+ parts = iop3xx_partitions;
+ nb_parts = ARRAY_SIZE(iop3xx_partitions);
+ }
+ add_mtd_partitions(mymtd, parts, nb_parts);
+ return 0;
+}
+
+static void __exit cleanup_iop3xx(void)
+{
+ if (mymtd) {
+ del_mtd_partitions(mymtd);
+ map_destroy(mymtd);
+ if (parsed_parts)
+ kfree(parsed_parts);
+ }
+ if (iop3xx_map.virt)
+ iounmap((void *)iop3xx_map.virt);
+}
+
+module_init(init_iop3xx);
+module_exit(cleanup_iop3xx);
+
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Nicolas Pitre <nico@cam.org>");
+MODULE_DESCRIPTION("MTD map driver for Intel XScale IOP3xx Platforms");
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