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From e2c4839b01100328ca00eda735ed08d13da4e02e Mon Sep 17 00:00:00 2001
From: Matthieu Crapet <mcrapet@gmail.com>
Date: Sun, 17 Jan 2010 19:50:34 +0100
Subject: [PATCH 16/16] ts7200_nor_flash
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 8bit
Signed-off-by: Petr Štetiar <ynezz@true.cz>
---
drivers/mtd/maps/Kconfig | 8 +++
drivers/mtd/maps/Makefile | 1 +
drivers/mtd/maps/ts7200_flash.c | 106 +++++++++++++++++++++++++++++++++++++++
3 files changed, 115 insertions(+), 0 deletions(-)
create mode 100644 drivers/mtd/maps/ts7200_flash.c
diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig
index 2de0cc8..3f3bfde 100644
--- a/drivers/mtd/maps/Kconfig
+++ b/drivers/mtd/maps/Kconfig
@@ -437,6 +437,14 @@ config MTD_OMAP_NOR
These boards include the Innovator, H2, H3, OSK, Perseus2, and
more. If you have such a board, say 'Y'.
+config MTD_TS7200_NOR
+ tristate "Technologic Systems TS-7200 flash 8Mb"
+ depends on MTD_CFI && ARCH_EP93XX
+ help
+ This provides a map driver for the on-board flash of the Technologic
+ System's TS-7200 board. The 8MB flash is splitted into 3 partitions
+ which are accessed as separate MTD devices.
+
# This needs CFI or JEDEC, depending on the cards found.
config MTD_PCI
tristate "PCI MTD driver"
diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile
index ce31521..b8894ed 100644
--- a/drivers/mtd/maps/Makefile
+++ b/drivers/mtd/maps/Makefile
@@ -58,6 +58,7 @@ obj-$(CONFIG_MTD_PLATRAM) += plat-ram.o
obj-$(CONFIG_MTD_OMAP_NOR) += omap_nor.o
obj-$(CONFIG_MTD_INTEL_VR_NOR) += intel_vr_nor.o
obj-$(CONFIG_MTD_BFIN_ASYNC) += bfin-async-flash.o
+obj-$(CONFIG_MTD_TS7200_NOR) += ts7200_flash.o
obj-$(CONFIG_MTD_RBTX4939) += rbtx4939-flash.o
obj-$(CONFIG_MTD_VMU) += vmu-flash.o
obj-$(CONFIG_MTD_GPIO_ADDR) += gpio-addr-flash.o
diff --git a/drivers/mtd/maps/ts7200_flash.c b/drivers/mtd/maps/ts7200_flash.c
new file mode 100644
index 0000000..efc5f00
--- /dev/null
+++ b/drivers/mtd/maps/ts7200_flash.c
@@ -0,0 +1,106 @@
+/*
+ * ts7200_flash.c - mapping for TS-7200 SBCs (8mb NOR flash)
+ * No platform_device resource is used here. All is hardcoded.
+ *
+ * (c) Copyright 2006 Matthieu Crapet <mcrapet@gmail.com>
+ * Based on ts5500_flash.c by Sean Young <sean@mess.org>
+ *
+ * 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 <asm/io.h>
+#include <asm/sizes.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/partitions.h>
+
+#define WINDOW_ADDR 0x60000000
+#define WINDOW_SIZE SZ_8M
+#define WINDOW_READABLE_SIZE (WINDOW_SIZE/SZ_1M)
+
+
+static struct mtd_info *mymtd;
+
+static struct map_info ts7200nor_map = {
+ .name = "Full TS-7200 NOR flash",
+ .size = WINDOW_SIZE,
+ .bankwidth = 2,
+ .phys = WINDOW_ADDR,
+};
+
+/*
+ * MTD partitioning stuff
+ */
+#ifdef CONFIG_MTD_PARTITIONS
+static struct mtd_partition static_partitions[] =
+{
+ {
+ .name = "TS-BOOTROM",
+ .offset = 0,
+ .size = 0x20000,
+ .mask_flags = MTD_WRITEABLE, /* force read-only */
+ },
+ {
+ .name = "RootFS",
+ .offset = 0x20000,
+ .size = 0x600000,
+ },
+ {
+ .name = "Redboot",
+ .offset = 0x620000,
+ .size = MTDPART_SIZ_FULL, /* up to the end */
+ },
+};
+#endif
+
+int __init init_ts7200nor(void)
+{
+ printk(KERN_NOTICE "TS-7200 flash mapping: %dmo at 0x%x\n", WINDOW_READABLE_SIZE, WINDOW_ADDR);
+
+ ts7200nor_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE);
+ if (!ts7200nor_map.virt) {
+ printk("ts7200_flash: failed to ioremap\n");
+ return -EIO;
+ }
+
+ simple_map_init(&ts7200nor_map);
+ mymtd = do_map_probe("cfi_probe", &ts7200nor_map);
+ if (mymtd) {
+ mymtd->owner = THIS_MODULE;
+ add_mtd_device(mymtd);
+#ifdef CONFIG_MTD_PARTITIONS
+ return add_mtd_partitions(mymtd, static_partitions, ARRAY_SIZE(static_partitions));
+#else
+ return 0;
+#endif
+ }
+
+ iounmap((void *)ts7200nor_map.virt);
+ return -ENXIO;
+}
+
+static void __exit cleanup_ts7200nor(void)
+{
+ if (mymtd) {
+ del_mtd_device(mymtd);
+ map_destroy(mymtd);
+ }
+ if (ts7200nor_map.virt) {
+ iounmap((void *)ts7200nor_map.virt);
+ ts7200nor_map.virt = 0;
+ }
+}
+
+module_init(init_ts7200nor);
+module_exit(cleanup_ts7200nor);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Matthieu Crapet <mcrapet@gmail.com>");
+MODULE_DESCRIPTION("MTD map driver for TS-7200 board (" __MODULE_STRING(WINDOW_READABLE_SIZE) "MB flash version)");
--
1.6.3.3
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