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[Hackndev-commit] SF.net SVN: hackndev: [1293] linux4palm/linux/trunk/drivers/mtd/maps
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From: <mar...@us...> - 2007-09-02 08:47:29
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Revision: 1293
http://hackndev.svn.sourceforge.net/hackndev/?rev=1293&view=rev
Author: marex_z71
Date: 2007-09-02 01:47:26 -0700 (Sun, 02 Sep 2007)
Log Message:
-----------
PalmTX: ROM driver
Modified Paths:
--------------
linux4palm/linux/trunk/drivers/mtd/maps/Kconfig
linux4palm/linux/trunk/drivers/mtd/maps/Makefile
Added Paths:
-----------
linux4palm/linux/trunk/drivers/mtd/maps/palmtx-flash.c
Modified: linux4palm/linux/trunk/drivers/mtd/maps/Kconfig
===================================================================
--- linux4palm/linux/trunk/drivers/mtd/maps/Kconfig 2007-09-01 20:33:51 UTC (rev 1292)
+++ linux4palm/linux/trunk/drivers/mtd/maps/Kconfig 2007-09-02 08:47:26 UTC (rev 1293)
@@ -513,6 +513,14 @@
write into device's FlashROM memory (DANGEROUS, use with
caution!).
+config MTD_PALMTX
+ tristate "Palm T|X flash driver !UNTESTED, DANGEROUS!"
+ depends on MTD_CFI && MACH_XSCALE_PALMTX
+ help
+ This MTD map describes how flash memory on Palm T|X is organized.
+ With this driver you can read and probably also write into device's
+ FlashROM memory (DANGEROUS, use with caution!).
+
config MTD_MPC1211
tristate "CFI Flash device mapped on Interface MPC-1211"
depends on SH_MPC1211 && MTD_CFI
Modified: linux4palm/linux/trunk/drivers/mtd/maps/Makefile
===================================================================
--- linux4palm/linux/trunk/drivers/mtd/maps/Makefile 2007-09-01 20:33:51 UTC (rev 1292)
+++ linux4palm/linux/trunk/drivers/mtd/maps/Makefile 2007-09-02 08:47:26 UTC (rev 1293)
@@ -62,6 +62,7 @@
obj-$(CONFIG_MTD_H720X) += h720x-flash.o
obj-$(CONFIG_MTD_PALMT3) += palmt3-flash.o
obj-$(CONFIG_MTD_PALMTC) += palmtc-flash.o
+obj-$(CONFIG_MTD_PALMTX) += palmtx-flash.o
obj-$(CONFIG_MTD_SBC8240) += sbc8240.o
obj-$(CONFIG_MTD_NOR_TOTO) += omap-toto-flash.o
obj-$(CONFIG_MTD_MPC1211) += mpc1211.o
Added: linux4palm/linux/trunk/drivers/mtd/maps/palmtx-flash.c
===================================================================
--- linux4palm/linux/trunk/drivers/mtd/maps/palmtx-flash.c (rev 0)
+++ linux4palm/linux/trunk/drivers/mtd/maps/palmtx-flash.c 2007-09-02 08:47:26 UTC (rev 1293)
@@ -0,0 +1,134 @@
+/*
+ * Palm T|X flash support
+ *
+ * Copyright (C) 2007 Marek Vasut <mar...@gm...>
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/partitions.h>
+
+#include <asm/hardware.h>
+#include <asm/io.h>
+
+#include <asm/arch/pxa-regs.h>
+
+static struct mtd_info *palmtx_mtd_info;
+
+static struct map_info palmtx_map = {
+ .name = "PALMTX_FLASH",
+ .bankwidth = 1,
+ .size = 0x800000, /* 8MB */
+ .phys = PXA_CS0_PHYS, /* At PXA_CS0 */
+};
+
+static struct mtd_partition palmtx_partitions[] = {
+ {
+ .name = "PalmTX ROM",
+ .size = 8 * 1024 * 1024, /* 8MB */
+ .offset = 0,
+ /* Uncomment following if you dont
+ like your device ... */
+ /* .mask_flags = MTD_WRITEABLE */
+ }
+};
+
+#define NUM_PARTITIONS 1
+
+static int nr_mtd_parts;
+static struct mtd_partition *mtd_parts;
+static const char *probes[] = { "cmdlinepart", NULL };
+
+/*
+ * Initialize FLASH support
+ */
+int __init palmtx_mtd_init(void)
+{
+ char *part_type = NULL;
+
+ palmtx_map.virt = ioremap(PXA_CS0_PHYS, palmtx_map.size);
+
+ if (!palmtx_map.virt) {
+ printk(KERN_ERR "PalmTX Flash: ioremap failed\n");
+ return -EIO;
+ }
+
+ simple_map_init(&palmtx_map);
+
+ /* Probe for flash bankwidth 1 */
+ printk (KERN_INFO "PalmTX Flash: probing 8bit FLASH\n");
+ palmtx_mtd_info = do_map_probe("cfi_probe", &palmtx_map);
+
+ if (palmtx_mtd_info) {
+ palmtx_mtd_info->owner = THIS_MODULE;
+
+#ifdef CONFIG_MTD_PARTITIONS
+ nr_mtd_parts = parse_mtd_partitions(palmtx_mtd_info, probes,
+ &mtd_parts, 0);
+ if (nr_mtd_parts > 0)
+ part_type = "command line";
+#endif
+ if (nr_mtd_parts <= 0) {
+ mtd_parts = palmtx_partitions;
+ nr_mtd_parts = NUM_PARTITIONS;
+ part_type = "builtin";
+ }
+
+ printk(KERN_INFO "Using %s partition table\n", part_type);
+ add_mtd_partitions(palmtx_mtd_info, mtd_parts, nr_mtd_parts);
+ return 0;
+ }
+
+ iounmap((void *)palmtx_map.virt);
+ return -ENXIO;
+}
+
+/*
+ * Cleanup
+ */
+static void __exit palmtx_mtd_cleanup(void)
+{
+
+ if (palmtx_mtd_info) {
+ del_mtd_partitions(palmtx_mtd_info);
+ map_destroy(palmtx_mtd_info);
+ }
+
+ /* Free partition info, if commandline partition was used */
+ if (mtd_parts && (mtd_parts != palmtx_partitions))
+ kfree (mtd_parts);
+
+ if (palmtx_map.virt) {
+ iounmap((void *)palmtx_map.virt);
+ palmtx_map.virt = 0;
+ }
+}
+
+
+module_init(palmtx_mtd_init);
+module_exit(palmtx_mtd_cleanup);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Marek Vasut <mar...@gm...>");
+MODULE_DESCRIPTION("Flash driver for Palm TX");
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