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-rw-r--r--packages/linux/gumstix-kernel-2.6.21/flash.patch171
1 files changed, 171 insertions, 0 deletions
diff --git a/packages/linux/gumstix-kernel-2.6.21/flash.patch b/packages/linux/gumstix-kernel-2.6.21/flash.patch
new file mode 100644
index 0000000000..a50a382f7a
--- /dev/null
+++ b/packages/linux/gumstix-kernel-2.6.21/flash.patch
@@ -0,0 +1,171 @@
+Index: linux-2.6.21gum/drivers/mtd/maps/gumstix-flash.c
+===================================================================
+--- /dev/null
++++ linux-2.6.21gum/drivers/mtd/maps/gumstix-flash.c
+@@ -0,0 +1,136 @@
++/*
++ * Map driver for the Gumstix platform
++ *
++ * Author: Craig Hughes
++ *
++ * 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/mtd/mtd.h>
++#include <linux/mtd/map.h>
++#include <linux/mtd/partitions.h>
++#include <asm/io.h>
++#include <asm/hardware.h>
++#include <asm/arch/gumstix.h>
++
++
++#define ROM_ADDR 0x00000000
++#define FLASH_ADDR 0x00000000
++
++#define WINDOW_SIZE 64*1024*1024
++
++static struct map_info gumstix_flash_maps[1] = { {
++ .name = "Gumstix Flash ROM",
++ .size = WINDOW_SIZE,
++ .phys = FLASH_ADDR,
++ .bankwidth = 2,
++} };
++
++static struct mtd_partition gumstix_flash_partitions[] = {
++ {
++ .name = "Bootloader",
++ .size = 0x00040000,
++ .offset = FLASH_ADDR
++ },{
++ .name = "RootFS",
++ .size = MTDPART_SIZ_FULL,
++ .offset = MTDPART_OFS_APPEND
++ }
++};
++
++static struct mtd_info *mymtds[1];
++static struct mtd_partition *parsed_parts[1];
++static int nr_parsed_parts[1];
++
++static const char *probes[] = { NULL };
++
++static int __init gumstix_flashmap_init(void)
++{
++ int ret = 0, i;
++
++ for (i = 0; i < 1; i++) {
++ gumstix_flash_maps[i].virt = ioremap(gumstix_flash_maps[i].phys, WINDOW_SIZE);
++ if (!gumstix_flash_maps[i].virt) {
++ printk(KERN_WARNING "Failed to ioremap %s\n", gumstix_flash_maps[i].name);
++ if (!ret)
++ ret = -ENOMEM;
++ continue;
++ }
++ simple_map_init(&gumstix_flash_maps[i]);
++
++ printk(KERN_NOTICE "Probing %s at physical address 0x%08lx (%d-bit bankwidth)\n",
++ gumstix_flash_maps[i].name, gumstix_flash_maps[i].phys,
++ gumstix_flash_maps[i].bankwidth * 8);
++
++ mymtds[i] = do_map_probe("cfi_probe", &gumstix_flash_maps[i]);
++
++ if (!mymtds[i]) {
++ iounmap((void *)gumstix_flash_maps[i].virt);
++ if (gumstix_flash_maps[i].cached)
++ iounmap(gumstix_flash_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])
++ return ret;
++
++ for (i = 0; i < 1; i++) {
++ if (!mymtds[i]) {
++ printk(KERN_WARNING "%s is absent. Skipping\n", gumstix_flash_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", gumstix_flash_maps[i].name);
++ add_mtd_partitions(mymtds[i], gumstix_flash_partitions, ARRAY_SIZE(gumstix_flash_partitions));
++ } else {
++ printk("Registering %s as whole device\n", gumstix_flash_maps[i].name);
++ add_mtd_device(mymtds[i]);
++ }
++ }
++ return 0;
++}
++
++static void __exit gumstix_flashmap_cleanup(void)
++{
++ int i;
++ for (i = 0; i < 1; 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 *)gumstix_flash_maps[i].virt);
++ if (gumstix_flash_maps[i].cached)
++ iounmap(gumstix_flash_maps[i].cached);
++
++ if (parsed_parts[i])
++ kfree(parsed_parts[i]);
++ }
++}
++
++module_init(gumstix_flashmap_init);
++module_exit(gumstix_flashmap_cleanup);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Gumstix, Inc. <gumstix-users@lists.sf.net>");
++MODULE_DESCRIPTION("MTD map driver for the Gumstix Platform");
+Index: linux-2.6.21gum/drivers/mtd/maps/Kconfig
+===================================================================
+--- linux-2.6.21gum.orig/drivers/mtd/maps/Kconfig
++++ linux-2.6.21gum/drivers/mtd/maps/Kconfig
+@@ -131,6 +131,13 @@ config MTD_SBC_GXX
+ More info at
+ <http://www.arcomcontrols.com/products/icp/pc104/processors/SBC_GX1.htm>.
+
++config MTD_GUMSTIX
++ tristate "CFI Flash device mapped on Gumstix"
++ depends on ARCH_GUMSTIX && MTD_CFI_INTELEXT && MTD_PARTITIONS
++ help
++ This provides a driver for the on-board flash of the Gumstix
++ single board computers.
++
+ config MTD_LUBBOCK
+ tristate "CFI Flash device mapped on Intel Lubbock XScale eval board"
+ depends on ARCH_LUBBOCK && MTD_CFI_INTELEXT && MTD_PARTITIONS
+Index: linux-2.6.21gum/drivers/mtd/maps/Makefile
+===================================================================
+--- linux-2.6.21gum.orig/drivers/mtd/maps/Makefile
++++ linux-2.6.21gum/drivers/mtd/maps/Makefile
+@@ -21,6 +21,7 @@ obj-$(CONFIG_MTD_ICHXROM) += ichxrom.o
+ obj-$(CONFIG_MTD_CK804XROM) += ck804xrom.o
+ obj-$(CONFIG_MTD_TSUNAMI) += tsunami_flash.o
+ obj-$(CONFIG_MTD_LUBBOCK) += lubbock-flash.o
++obj-$(CONFIG_MTD_GUMSTIX) += gumstix-flash.o
+ obj-$(CONFIG_MTD_MAINSTONE) += mainstone-flash.o
+ obj-$(CONFIG_MTD_MBX860) += mbx860.o
+ obj-$(CONFIG_MTD_CEIVA) += ceiva.o