v4.19.13 snapshot.
diff --git a/drivers/mtd/maps/impa7.c b/drivers/mtd/maps/impa7.c
new file mode 100644
index 0000000..815e2db
--- /dev/null
+++ b/drivers/mtd/maps/impa7.c
@@ -0,0 +1,118 @@
+/*
+ * Handle mapping of the NOR flash on implementa A7 boards
+ *
+ * Copyright 2002 SYSGO Real-Time Solutions GmbH
+ *
+ * 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 <asm/io.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/partitions.h>
+
+#define WINDOW_ADDR0 0x00000000 /* physical properties of flash */
+#define WINDOW_SIZE0 0x00800000
+#define WINDOW_ADDR1 0x10000000 /* physical properties of flash */
+#define WINDOW_SIZE1 0x00800000
+#define NUM_FLASHBANKS 2
+#define BUSWIDTH 4
+
+#define MSG_PREFIX "impA7:" /* prefix for our printk()'s */
+#define MTDID "impa7-%d" /* for mtdparts= partitioning */
+
+static struct mtd_info *impa7_mtd[NUM_FLASHBANKS];
+
+static const char * const rom_probe_types[] = { "jedec_probe", NULL };
+
+static struct map_info impa7_map[NUM_FLASHBANKS] = {
+ {
+ .name = "impA7 NOR Flash Bank #0",
+ .size = WINDOW_SIZE0,
+ .bankwidth = BUSWIDTH,
+ },
+ {
+ .name = "impA7 NOR Flash Bank #1",
+ .size = WINDOW_SIZE1,
+ .bankwidth = BUSWIDTH,
+ },
+};
+
+/*
+ * MTD partitioning stuff
+ */
+static const struct mtd_partition partitions[] =
+{
+ {
+ .name = "FileSystem",
+ .size = 0x800000,
+ .offset = 0x00000000
+ },
+};
+
+static int __init init_impa7(void)
+{
+ const char * const *type;
+ int i;
+ static struct { u_long addr; u_long size; } pt[NUM_FLASHBANKS] = {
+ { WINDOW_ADDR0, WINDOW_SIZE0 },
+ { WINDOW_ADDR1, WINDOW_SIZE1 },
+ };
+ int devicesfound = 0;
+
+ for(i=0; i<NUM_FLASHBANKS; i++)
+ {
+ printk(KERN_NOTICE MSG_PREFIX "probing 0x%08lx at 0x%08lx\n",
+ pt[i].size, pt[i].addr);
+
+ impa7_map[i].phys = pt[i].addr;
+ impa7_map[i].virt = ioremap(pt[i].addr, pt[i].size);
+ if (!impa7_map[i].virt) {
+ printk(MSG_PREFIX "failed to ioremap\n");
+ return -EIO;
+ }
+ simple_map_init(&impa7_map[i]);
+
+ impa7_mtd[i] = NULL;
+ type = rom_probe_types;
+ for(; !impa7_mtd[i] && *type; type++) {
+ impa7_mtd[i] = do_map_probe(*type, &impa7_map[i]);
+ }
+
+ if (impa7_mtd[i]) {
+ impa7_mtd[i]->owner = THIS_MODULE;
+ devicesfound++;
+ mtd_device_register(impa7_mtd[i], partitions,
+ ARRAY_SIZE(partitions));
+ } else {
+ iounmap((void __iomem *)impa7_map[i].virt);
+ }
+ }
+ return devicesfound == 0 ? -ENXIO : 0;
+}
+
+static void __exit cleanup_impa7(void)
+{
+ int i;
+ for (i=0; i<NUM_FLASHBANKS; i++) {
+ if (impa7_mtd[i]) {
+ mtd_device_unregister(impa7_mtd[i]);
+ map_destroy(impa7_mtd[i]);
+ iounmap((void __iomem *)impa7_map[i].virt);
+ impa7_map[i].virt = NULL;
+ }
+ }
+}
+
+module_init(init_impa7);
+module_exit(cleanup_impa7);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Pavel Bartusek <pba@sysgo.de>");
+MODULE_DESCRIPTION("MTD map driver for implementa impA7");