1 files changed, 89 insertions, 0 deletions

diff --git a/arch/arm/mach-mx5/mm.c b/arch/arm/mach-mx5/mm.c
new file mode 100644
index 000000000000..c21e18be7af8
--- /dev/null
+++ b/arch/arm/mach-mx5/mm.c
@@ -0,0 +1,89 @@
+/*
+ * Copyright 2008-2009 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License.  You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * Create static mapping between physical to virtual memory.
+ */
+
+#include <linux/mm.h>
+#include <linux/init.h>
+
+#include <asm/mach/map.h>
+
+#include <mach/hardware.h>
+#include <mach/common.h>
+#include <mach/iomux-v3.h>
+
+/*
+ * Define the MX51 memory map.
+ */
+static struct map_desc mxc_io_desc[] __initdata = {
+        {
+                .virtual = MX51_IRAM_BASE_ADDR_VIRT,
+                .pfn = __phys_to_pfn(MX51_IRAM_BASE_ADDR),
+                .length = MX51_IRAM_SIZE,
+                .type = MT_DEVICE
+        }, {
+                .virtual = MX51_DEBUG_BASE_ADDR_VIRT,
+                .pfn = __phys_to_pfn(MX51_DEBUG_BASE_ADDR),
+                .length = MX51_DEBUG_SIZE,
+                .type = MT_DEVICE
+        }, {
+                .virtual = MX51_TZIC_BASE_ADDR_VIRT,
+                .pfn = __phys_to_pfn(MX51_TZIC_BASE_ADDR),
+                .length = MX51_TZIC_SIZE,
+                .type = MT_DEVICE
+        }, {
+                .virtual = MX51_AIPS1_BASE_ADDR_VIRT,
+                .pfn = __phys_to_pfn(MX51_AIPS1_BASE_ADDR),
+                .length = MX51_AIPS1_SIZE,
+                .type = MT_DEVICE
+        }, {
+                .virtual = MX51_SPBA0_BASE_ADDR_VIRT,
+                .pfn = __phys_to_pfn(MX51_SPBA0_BASE_ADDR),
+                .length = MX51_SPBA0_SIZE,
+                .type = MT_DEVICE
+        }, {
+                .virtual = MX51_AIPS2_BASE_ADDR_VIRT,
+                .pfn = __phys_to_pfn(MX51_AIPS2_BASE_ADDR),
+                .length = MX51_AIPS2_SIZE,
+                .type = MT_DEVICE
+        }, {
+                .virtual = MX51_NFC_AXI_BASE_ADDR_VIRT,
+                .pfn = __phys_to_pfn(MX51_NFC_AXI_BASE_ADDR),
+                .length = MX51_NFC_AXI_SIZE,
+                .type = MT_DEVICE
+        },
+};
+
+/*
+ * This function initializes the memory map. It is called during the
+ * system startup to create static physical to virtual memory mappings
+ * for the IO modules.
+ */
+void __init mx51_map_io(void)
+{
+        u32 tzic_addr;
+
+        if (mx51_revision() < MX51_CHIP_REV_2_0)
+                tzic_addr = 0x8FFFC000;
+        else
+                tzic_addr = 0xE0003000;
+        mxc_io_desc[2].pfn =  __phys_to_pfn(tzic_addr);
+
+        mxc_set_cpu_type(MXC_CPU_MX51);
+        mxc_iomux_v3_init(MX51_IO_ADDRESS(MX51_IOMUXC_BASE_ADDR));
+        mxc_arch_reset_init(MX51_IO_ADDRESS(MX51_WDOG_BASE_ADDR));
+        iotable_init(mxc_io_desc, ARRAY_SIZE(mxc_io_desc));
+}
+
+void __init mx51_init_irq(void)
+{
+        tzic_init_irq(MX51_IO_ADDRESS(MX51_TZIC_BASE_ADDR));
+}