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Diffstat (limited to 'arch/arm/mach-imx/mm-imx31.c')
-rw-r--r--arch/arm/mach-imx/mm-imx31.c66
1 files changed, 66 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/mm-imx31.c b/arch/arm/mach-imx/mm-imx31.c
new file mode 100644
index 000000000000..86b9b45864d2
--- /dev/null
+++ b/arch/arm/mach-imx/mm-imx31.c
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 1999,2000 Arm Limited
+ * Copyright (C) 2000 Deep Blue Solutions Ltd
+ * Copyright (C) 2002 Shane Nay (shane@minirl.com)
+ * Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
+ * - add MX31 specific definitions
+ *
+ * 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.
+ */
+
+#include <linux/mm.h>
+#include <linux/init.h>
+#include <linux/err.h>
+
+#include <asm/pgtable.h>
+#include <asm/mach/map.h>
+
+#include <mach/common.h>
+#include <mach/hardware.h>
+#include <mach/iomux-v3.h>
+#include <mach/gpio.h>
+#include <mach/irqs.h>
+
+static struct map_desc mx31_io_desc[] __initdata = {
+ imx_map_entry(MX31, X_MEMC, MT_DEVICE),
+ imx_map_entry(MX31, AVIC, MT_DEVICE_NONSHARED),
+ imx_map_entry(MX31, AIPS1, MT_DEVICE_NONSHARED),
+ imx_map_entry(MX31, AIPS2, MT_DEVICE_NONSHARED),
+ imx_map_entry(MX31, SPBA0, MT_DEVICE_NONSHARED),
+};
+
+/*
+ * 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 mx31_map_io(void)
+{
+ iotable_init(mx31_io_desc, ARRAY_SIZE(mx31_io_desc));
+}
+
+void __init imx31_init_early(void)
+{
+ mxc_set_cpu_type(MXC_CPU_MX31);
+ mxc_arch_reset_init(MX31_IO_ADDRESS(MX31_WDOG_BASE_ADDR));
+}
+
+static struct mxc_gpio_port imx31_gpio_ports[] = {
+ DEFINE_IMX_GPIO_PORT_IRQ(MX31, 0, 1, MX31_INT_GPIO1),
+ DEFINE_IMX_GPIO_PORT_IRQ(MX31, 1, 2, MX31_INT_GPIO2),
+ DEFINE_IMX_GPIO_PORT_IRQ(MX31, 2, 3, MX31_INT_GPIO3),
+};
+
+void __init mx31_init_irq(void)
+{
+ mxc_init_irq(MX31_IO_ADDRESS(MX31_AVIC_BASE_ADDR));
+ mxc_gpio_init(imx31_gpio_ports, ARRAY_SIZE(imx31_gpio_ports));
+}