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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2008-07-10 16:41:50 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-07-10 16:41:50 +0100
commitf0006314d37639714da9658cf4ff3f1f9f420764 (patch)
treeb8a18e014a40f2f8fd5148aab09c869dfaabd7a9 /arch/arm/mach-mx2/generic.c
parenta177ba3b7a08beef3f0fe74efa0f90701891945a (diff)
parent1bd55a436f1f90de0e7f476e514e01bd67497b88 (diff)
Merge branch 'imx' into devel
Conflicts: arch/arm/mm/Kconfig
Diffstat (limited to 'arch/arm/mach-mx2/generic.c')
-rw-r--r--arch/arm/mach-mx2/generic.c74
1 files changed, 74 insertions, 0 deletions
diff --git a/arch/arm/mach-mx2/generic.c b/arch/arm/mach-mx2/generic.c
new file mode 100644
index 00000000000..07875cf00de
--- /dev/null
+++ b/arch/arm/mach-mx2/generic.c
@@ -0,0 +1,74 @@
+/*
+ * generic.c
+ *
+ * Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de)
+ *
+ * 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.
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ */
+
+#include <linux/mm.h>
+#include <linux/init.h>
+#include <asm/hardware.h>
+#include <asm/pgtable.h>
+#include <asm/mach/map.h>
+
+/* MX27 memory map definition */
+static struct map_desc mxc_io_desc[] __initdata = {
+ /*
+ * this fixed mapping covers:
+ * - AIPI1
+ * - AIPI2
+ * - AITC
+ * - ROM Patch
+ * - and some reserved space
+ */
+ {
+ .virtual = AIPI_BASE_ADDR_VIRT,
+ .pfn = __phys_to_pfn(AIPI_BASE_ADDR),
+ .length = AIPI_SIZE,
+ .type = MT_DEVICE
+ },
+ /*
+ * this fixed mapping covers:
+ * - CSI
+ * - ATA
+ */
+ {
+ .virtual = SAHB1_BASE_ADDR_VIRT,
+ .pfn = __phys_to_pfn(SAHB1_BASE_ADDR),
+ .length = SAHB1_SIZE,
+ .type = MT_DEVICE
+ },
+ /*
+ * this fixed mapping covers:
+ * - EMI
+ */
+ {
+ .virtual = X_MEMC_BASE_ADDR_VIRT,
+ .pfn = __phys_to_pfn(X_MEMC_BASE_ADDR),
+ .length = X_MEMC_SIZE,
+ .type = MT_DEVICE
+ }
+};
+
+/*
+ * Initialize the memory map. It is called during the
+ * system startup to create static physical to virtual
+ * memory map for the IO modules.
+ */
+void __init mxc_map_io(void)
+{
+ iotable_init(mxc_io_desc, ARRAY_SIZE(mxc_io_desc));
+}