1 files changed, 83 insertions, 0 deletions

diff --git a/arch/arm/mach-imx/mm-imx21.c b/arch/arm/mach-imx/mm-imx21.c
new file mode 100644
index 000000000000..115c21289125
--- /dev/null
+++ b/arch/arm/mach-imx/mm-imx21.c
@@ -0,0 +1,83 @@
+/*
+ * arch/arm/mach-imx/mm-imx21.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 <mach/hardware.h>
+#include <mach/common.h>
+#include <asm/pgtable.h>
+#include <asm/mach/map.h>
+
+/* MX21 memory map definition */
+static struct map_desc imx21_io_desc[] __initdata = {
+        /*
+         * this fixed mapping covers:
+         * - AIPI1
+         * - AIPI2
+         * - AITC
+         * - ROM Patch
+         * - and some reserved space
+         */
+        {
+                .virtual = MX21_AIPI_BASE_ADDR_VIRT,
+                .pfn = __phys_to_pfn(MX21_AIPI_BASE_ADDR),
+                .length = MX21_AIPI_SIZE,
+                .type = MT_DEVICE
+        },
+        /*
+         * this fixed mapping covers:
+         * - CSI
+         * - ATA
+         */
+        {
+                .virtual = MX21_SAHB1_BASE_ADDR_VIRT,
+                .pfn = __phys_to_pfn(MX21_SAHB1_BASE_ADDR),
+                .length = MX21_SAHB1_SIZE,
+                .type = MT_DEVICE
+        },
+        /*
+         * this fixed mapping covers:
+         * - EMI
+         */
+        {
+                .virtual = MX21_X_MEMC_BASE_ADDR_VIRT,
+                .pfn = __phys_to_pfn(MX21_X_MEMC_BASE_ADDR),
+                .length = MX21_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 mx21_map_io(void)
+{
+        mxc_set_cpu_type(MXC_CPU_MX21);
+        mxc_arch_reset_init(MX21_IO_ADDRESS(MX21_WDOG_BASE_ADDR));
+
+        iotable_init(imx21_io_desc, ARRAY_SIZE(imx21_io_desc));
+}
+
+void __init mx21_init_irq(void)
+{
+        mxc_init_irq(MX21_IO_ADDRESS(MX21_AVIC_BASE_ADDR));
+}