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path: root/drivers/mtd/maps/uclinux.c
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Diffstat (limited to 'drivers/mtd/maps/uclinux.c')
-rw-r--r--drivers/mtd/maps/uclinux.c30
1 files changed, 25 insertions, 5 deletions
diff --git a/drivers/mtd/maps/uclinux.c b/drivers/mtd/maps/uclinux.c
index 299bf88a6f4..c1af83db520 100644
--- a/drivers/mtd/maps/uclinux.c
+++ b/drivers/mtd/maps/uclinux.c
@@ -23,12 +23,26 @@
/****************************************************************************/
+#ifdef CONFIG_MTD_ROM
+#define MAP_NAME "rom"
+#else
+#define MAP_NAME "ram"
+#endif
+
+/*
+ * Blackfin uses uclinux_ram_map during startup, so it must not be static.
+ * Provide a dummy declaration to make sparse happy.
+ */
+extern struct map_info uclinux_ram_map;
+
struct map_info uclinux_ram_map = {
- .name = "RAM",
- .phys = (unsigned long)__bss_stop,
+ .name = MAP_NAME,
.size = 0,
};
+static unsigned long physaddr = -1;
+module_param(physaddr, ulong, S_IRUGO);
+
static struct mtd_info *uclinux_ram_mtdinfo;
/****************************************************************************/
@@ -60,11 +74,17 @@ static int __init uclinux_mtd_init(void)
struct map_info *mapp;
mapp = &uclinux_ram_map;
+
+ if (physaddr == -1)
+ mapp->phys = (resource_size_t)__bss_stop;
+ else
+ mapp->phys = physaddr;
+
if (!mapp->size)
mapp->size = PAGE_ALIGN(ntohl(*((unsigned long *)(mapp->phys + 8))));
mapp->bankwidth = 4;
- printk("uclinux[mtd]: RAM probe address=0x%x size=0x%x\n",
+ printk("uclinux[mtd]: probe address=0x%x size=0x%x\n",
(int) mapp->phys, (int) mapp->size);
/*
@@ -82,7 +102,7 @@ static int __init uclinux_mtd_init(void)
simple_map_init(mapp);
- mtd = do_map_probe("map_ram", mapp);
+ mtd = do_map_probe("map_" MAP_NAME, mapp);
if (!mtd) {
printk("uclinux[mtd]: failed to find a mapping?\n");
return(-ENXIO);
@@ -118,6 +138,6 @@ module_exit(uclinux_mtd_cleanup);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Greg Ungerer <gerg@snapgear.com>");
-MODULE_DESCRIPTION("Generic RAM based MTD for uClinux");
+MODULE_DESCRIPTION("Generic MTD for uClinux");
/****************************************************************************/