mtd/drivers/mtd/maps mainstone-flash.c, NONE, 1.1 Kconfig, 1.53,
1.54 Makefile.common, 1.28, 1.29
tpoynor at infradead.org
tpoynor at infradead.org
Thu Jun 30 18:41:40 EDT 2005
Update of /home/cvs/mtd/drivers/mtd/maps
In directory phoenix.infradead.org:/tmp/cvs-serv17109/drivers/mtd/maps
Modified Files:
Kconfig Makefile.common
Added Files:
mainstone-flash.c
Log Message:
Add mapping driver for Intel PXA27x Mainstone board flash.
>From Nicolas Pitre.
Signed-off-by: Todd Poynor <tpoynor at mvista.com>
--- NEW FILE mainstone-flash.c ---
/*
* $Id: $
*
* Map driver for the Mainstone 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/mainstone.h>
#define ROM_ADDR 0x00000000
#define FLASH_ADDR 0x04000000
#define WINDOW_SIZE 0x04000000
static void mainstone_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 mainstone_maps[2] = { {
.size = WINDOW_SIZE,
.phys = PXA_CS0_PHYS,
.inval_cache = mainstone_map_inval_cache,
}, {
.size = WINDOW_SIZE,
.phys = PXA_CS1_PHYS,
.inval_cache = mainstone_map_inval_cache,
} };
static struct mtd_partition mainstone_partitions[] = {
{
.name = "Bootloader",
.size = 0x00040000,
.offset = 0,
.mask_flags = MTD_WRITEABLE /* force read-only */
},{
.name = "Kernel",
.size = 0x00400000,
.offset = 0x00040000,
},{
.name = "Filesystem",
.size = MTDPART_SIZ_FULL,
.offset = 0x00440000
}
};
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_mainstone(void)
{
int SW7 = 0; /* FIXME: get from SCR (Mst doc section 3.2.1.1) */
int ret = 0, i;
mainstone_maps[0].bankwidth = (BOOT_DEF & 1) ? 2 : 4;
mainstone_maps[1].bankwidth = 4;
/* Compensate for SW7 which swaps the flash banks */
mainstone_maps[SW7].name = "processor flash";
mainstone_maps[SW7 ^ 1].name = "main board flash";
printk(KERN_NOTICE "Mainstone configured to boot from %s\n",
mainstone_maps[0].name);
for (i = 0; i < 2; i++) {
mainstone_maps[i].virt = ioremap(mainstone_maps[i].phys, WINDOW_SIZE);
if (!mainstone_maps[i].virt) {
printk(KERN_WARNING "Failed to ioremap %s\n", mainstone_maps[i].name);
if (!ret)
ret = -ENOMEM;
continue;
}
mainstone_maps[i].cached = ioremap_cached(mainstone_maps[i].phys, WINDOW_SIZE);
if (!mainstone_maps[i].cached)
printk(KERN_WARNING "Failed to ioremap cached %s\n", mainstone_maps[i].name);
simple_map_init(&mainstone_maps[i]);
printk(KERN_NOTICE "Probing %s at physical address 0x%08lx (%d-bit bankwidth)\n",
mainstone_maps[i].name, mainstone_maps[i].phys,
mainstone_maps[i].bankwidth * 8);
mymtds[i] = do_map_probe("cfi_probe", &mainstone_maps[i]);
if (!mymtds[i]) {
iounmap((void *)mainstone_maps[i].virt);
if (mainstone_maps[i].cached)
iounmap(mainstone_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", mainstone_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", mainstone_maps[i].name);
add_mtd_partitions(mymtds[i], mainstone_partitions, ARRAY_SIZE(mainstone_partitions));
} else {
printk("Registering %s as whole device\n", mainstone_maps[i].name);
add_mtd_device(mymtds[i]);
}
}
return 0;
}
static void __exit cleanup_mainstone(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 *)mainstone_maps[i].virt);
if (mainstone_maps[i].cached)
iounmap(mainstone_maps[i].cached);
if (parsed_parts[i])
kfree(parsed_parts[i]);
}
}
module_init(init_mainstone);
module_exit(cleanup_mainstone);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Nicolas Pitre <nico at cam.org>");
MODULE_DESCRIPTION("MTD map driver for Intel Mainstone");
Index: Kconfig
===================================================================
RCS file: /home/cvs/mtd/drivers/mtd/maps/Kconfig,v
retrieving revision 1.53
retrieving revision 1.54
diff -u -r1.53 -r1.54
--- Kconfig 29 Jun 2005 09:29:43 -0000 1.53
+++ Kconfig 30 Jun 2005 22:41:36 -0000 1.54
@@ -215,6 +215,14 @@
This provides a driver for the on-board flash of the Intel
'Lubbock' XScale evaluation board.
+config MTD_MAINSTONE
+ tristate "CFI Flash device mapped on Intel Mainstone XScale eval board"
+ depends on MACH_MAINSTONE && MTD_CFI_INTELEXT
+ select MTD_PARTITIONS
+ help
+ This provides a driver for the on-board flash of the Intel
+ 'Mainstone PXA27x evaluation board.
+
config MTD_OCTAGON
tristate "JEDEC Flash device mapped on Octagon 5066 SBC"
depends on X86 && MTD_JEDEC && MTD_COMPLEX_MAPPINGS
Index: Makefile.common
===================================================================
RCS file: /home/cvs/mtd/drivers/mtd/maps/Makefile.common,v
retrieving revision 1.28
retrieving revision 1.29
diff -u -r1.28 -r1.29
--- Makefile.common 17 Mar 2005 14:16:13 -0000 1.28
+++ Makefile.common 30 Jun 2005 22:41:36 -0000 1.29
@@ -22,6 +22,7 @@
obj-$(CONFIG_MTD_ICHXROM) += ichxrom.o
obj-$(CONFIG_MTD_TSUNAMI) += tsunami_flash.o
obj-$(CONFIG_MTD_LUBBOCK) += lubbock-flash.o
+obj-$(CONFIG_MTD_MAINSTONE) += mainstone-flash.o
obj-$(CONFIG_MTD_MBX860) += mbx860.o
obj-$(CONFIG_MTD_CEIVA) += ceiva.o
obj-$(CONFIG_MTD_OCTAGON) += octagon-5066.o
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