FRV: Flash mappings for the MB93090-MB00 motherboard

Flash mappings for the MB93090-MB00 evaluation motherboard.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 92 insertions, 0 deletions

diff --git a/arch/frv/mb93090-mb00/Makefile b/arch/frv/mb93090-mb00/Makefile
index 76595e870733..b73b542f8f48 100644
--- a/arch/frv/mb93090-mb00/Makefile
+++ b/arch/frv/mb93090-mb00/Makefile
@@ -11,3 +11,5 @@ else
 obj-y += pci-dma-nommu.o
 endif
 endif
+
+obj-$(CONFIG_MTD) += flash.o
diff --git a/arch/frv/mb93090-mb00/flash.c b/arch/frv/mb93090-mb00/flash.c
new file mode 100644
index 000000000000..c0e3707c2299
--- /dev/null
+++ b/arch/frv/mb93090-mb00/flash.c
@@ -0,0 +1,90 @@
+/* Flash mappings for the MB93090-MB00 motherboard
+ *
+ * Copyright (C) 2009 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+
+#define MB93090_BOOTROM_ADDR    0xFF000000      /* Boot ROM */
+#define MB93090_BOOTROM_SIZE    (2 * 1024 * 1024)
+#define MB93090_USERROM_ADDR    0xFF200000      /* User ROM */
+#define MB93090_USERROM_SIZE    (2 * 1024 * 1024)
+
+/*
+ * default MTD partition table for both main flash devices, expected to be
+ * overridden by RedBoot
+ */
+static struct mtd_partition mb93090_partitions[] = {
+        {
+                .name           = "Filesystem",
+                .size           = MTDPART_SIZ_FULL,
+                .offset         = 0,
+        }
+};
+
+/*
+ * Definition of the MB93090 Boot ROM (on the CPU card)
+ */
+static struct physmap_flash_data mb93090_bootrom_data = {
+        .width          = 2,
+        .nr_parts       = 2,
+        .parts          = mb93090_partitions,
+};
+
+static struct resource mb93090_bootrom_resource = {
+        .start          = MB93090_BOOTROM_ADDR,
+        .end            = MB93090_BOOTROM_ADDR + MB93090_BOOTROM_SIZE - 1,
+        .flags          = IORESOURCE_MEM,
+};
+
+static struct platform_device mb93090_bootrom = {
+        .name           = "physmap-flash",
+        .id             = 0,
+        .dev.platform_data = &mb93090_bootrom_data,
+        .num_resources  = 1,
+        .resource       = &mb93090_bootrom_resource,
+};
+
+/*
+ * Definition of the MB93090 User ROM definition (on the motherboard)
+ */
+static struct physmap_flash_data mb93090_userrom_data = {
+        .width          = 2,
+        .nr_parts       = 2,
+        .parts          = mb93090_partitions,
+};
+
+static struct resource mb93090_userrom_resource = {
+        .start          = MB93090_USERROM_ADDR,
+        .end            = MB93090_USERROM_ADDR + MB93090_USERROM_SIZE - 1,
+        .flags          = IORESOURCE_MEM,
+};
+
+static struct platform_device mb93090_userrom = {
+        .name           = "physmap-flash",
+        .id             = 1,
+        .dev.platform_data = &mb93090_userrom_data,
+        .num_resources  = 1,
+        .resource       = &mb93090_userrom_resource,
+};
+
+/*
+ * register the MB93090 flashes
+ */
+static int __init mb93090_mtd_init(void)
+{
+        platform_device_register(&mb93090_bootrom);
+        platform_device_register(&mb93090_userrom);
+        return 0;
+}
+
+module_init(mb93090_mtd_init);