ar71xx: move arch specific files to files-2.6.39

[openwrt/svn-archive/archive.git] / target / linux / ar71xx / files-2.6.39 / arch / mips / ar71xx / dev-m25p80.c

diff --git a/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/dev-m25p80.c b/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/dev-m25p80.c
new file mode 100644 (file)
index 0000000..cf6580e
--- /dev/null
+++ b/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/dev-m25p80.c
@@ -0,0 +1,100 @@
+/*
+ *  Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org>
+ *
+ *  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/init.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/flash.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/concat.h>
+
+#include "devices.h"
+#include "dev-m25p80.h"
+
+static struct spi_board_info ar71xx_spi_info[] = {
+       {
+               .bus_num        = 0,
+               .chip_select    = 0,
+               .max_speed_hz   = 25000000,
+               .modalias       = "m25p80",
+       },
+       {
+               .bus_num        = 0,
+               .chip_select    = 1,
+               .max_speed_hz   = 25000000,
+               .modalias   = "m25p80",
+       }
+};
+
+void __init ar71xx_add_device_m25p80(struct flash_platform_data *pdata)
+{
+       ar71xx_spi_info[0].platform_data = pdata;
+       ar71xx_add_device_spi(NULL, ar71xx_spi_info, 1);
+}
+
+static struct flash_platform_data *multi_pdata;
+
+static struct mtd_info *concat_devs[2] = { NULL, NULL };
+static struct work_struct mtd_concat_work;
+
+static void mtd_concat_add_work(struct work_struct *work)
+{
+       struct mtd_info *mtd;
+
+       mtd = mtd_concat_create(concat_devs, ARRAY_SIZE(concat_devs), "flash");
+
+#ifdef CONFIG_MTD_PARTITIONS
+       add_mtd_partitions(mtd, multi_pdata->parts, multi_pdata->nr_parts);
+#else
+       add_mtd_device(mtd);
+#endif
+}
+
+static void mtd_concat_add(struct mtd_info *mtd)
+{
+       static bool registered = false;
+
+       if (registered)
+               return;
+
+       if (!strcmp(mtd->name, "spi0.0"))
+               concat_devs[0] = mtd;
+       else if (!strcmp(mtd->name, "spi0.1"))
+               concat_devs[1] = mtd;
+       else
+               return;
+
+       if (!concat_devs[0] || !concat_devs[1])
+               return;
+
+       registered = true;
+       INIT_WORK(&mtd_concat_work, mtd_concat_add_work);
+       schedule_work(&mtd_concat_work);
+}
+
+static void mtd_concat_remove(struct mtd_info *mtd)
+{
+}
+
+static void add_mtd_concat_notifier(void)
+{
+       static struct mtd_notifier not = {
+               .add = mtd_concat_add,
+               .remove = mtd_concat_remove,
+       };
+
+       register_mtd_user(&not);
+}
+
+
+void __init ar71xx_add_device_m25p80_multi(struct flash_platform_data *pdata)
+{
+       multi_pdata = pdata;
+       add_mtd_concat_notifier();
+       ar71xx_add_device_spi(NULL, ar71xx_spi_info, ARRAY_SIZE(ar71xx_spi_info));
+}