initial_commit

1 files changed, 107 insertions, 0 deletions

diff --git a/arch/arm/mach-mx5/mm.c b/arch/arm/mach-mx5/mm.c
new file mode 100644
index 00000000..ff557301
--- /dev/null
+++ b/arch/arm/mach-mx5/mm.c
@@ -0,0 +1,107 @@
+/*
+ * Copyright 2008-2010 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 mx51_io_desc[] __initdata = {
+	imx_map_entry(MX51, IRAM, MT_DEVICE),
+	imx_map_entry(MX51, DEBUG, MT_DEVICE),
+	imx_map_entry(MX51, AIPS1, MT_DEVICE),
+	imx_map_entry(MX51, SPBA0, MT_DEVICE),
+	imx_map_entry(MX51, AIPS2, MT_DEVICE),
+};
+
+/*
+ * Define the MX53 memory map.
+ */
+static struct map_desc mx53_io_desc[] __initdata = {
+	imx_map_entry(MX53, AIPS1, MT_DEVICE),
+	imx_map_entry(MX53, SPBA0, MT_DEVICE),
+	imx_map_entry(MX53, AIPS2, 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)
+{
+	iotable_init(mx51_io_desc, ARRAY_SIZE(mx51_io_desc));
+}
+
+void __init imx51_init_early(void)
+{
+	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_WDOG1_BASE_ADDR));
+}
+
+void __init mx53_map_io(void)
+{
+	iotable_init(mx53_io_desc, ARRAY_SIZE(mx53_io_desc));
+}
+
+void __init imx53_init_early(void)
+{
+	mxc_set_cpu_type(MXC_CPU_MX53);
+	mxc_iomux_v3_init(MX53_IO_ADDRESS(MX53_IOMUXC_BASE_ADDR));
+	mxc_arch_reset_init(MX53_IO_ADDRESS(MX53_WDOG1_BASE_ADDR));
+}
+
+int imx51_register_gpios(void);
+
+void __init mx51_init_irq(void)
+{
+	unsigned long tzic_addr;
+	void __iomem *tzic_virt;
+
+	if (mx51_revision() < IMX_CHIP_REVISION_2_0)
+		tzic_addr = MX51_TZIC_BASE_ADDR_TO1;
+	else
+		tzic_addr = MX51_TZIC_BASE_ADDR;
+
+	tzic_virt = ioremap(tzic_addr, SZ_16K);
+	if (!tzic_virt)
+		panic("unable to map TZIC interrupt controller\n");
+
+	tzic_init_irq(tzic_virt);
+	imx51_register_gpios();
+}
+
+int imx53_register_gpios(void);
+
+void __init mx53_init_irq(void)
+{
+	unsigned long tzic_addr;
+	void __iomem *tzic_virt;
+
+	tzic_addr = MX53_TZIC_BASE_ADDR;
+
+	tzic_virt = ioremap(tzic_addr, SZ_16K);
+	if (!tzic_virt)
+		panic("unable to map TZIC interrupt controller\n");
+
+	tzic_init_irq(tzic_virt);
+	imx53_register_gpios();
+}