1 files changed, 80 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-imx/mach-imx51.c b/kernel/arch/arm/mach-imx/mach-imx51.c
new file mode 100644
index 000000000..b015129e4
--- /dev/null
+++ b/kernel/arch/arm/mach-imx/mach-imx51.c
@@ -0,0 +1,80 @@
+/*
+ * Copyright 2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright 2011 Linaro Ltd.
+ *
+ * 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
+ */
+
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+
+#include "common.h"
+#include "hardware.h"
+
+static void __init imx51_init_early(void)
+{
+	mxc_set_cpu_type(MXC_CPU_MX51);
+}
+
+/*
+ * The MIPI HSC unit has been removed from the i.MX51 Reference Manual by
+ * the Freescale marketing division. However this did not remove the
+ * hardware from the chip which still needs to be configured for proper
+ * IPU support.
+ */
+#define MX51_MIPI_HSC_BASE 0x83fdc000
+static void __init imx51_ipu_mipi_setup(void)
+{
+	void __iomem *hsc_addr;
+
+	hsc_addr = ioremap(MX51_MIPI_HSC_BASE, SZ_16K);
+	WARN_ON(!hsc_addr);
+
+	/* setup MIPI module to legacy mode */
+	__raw_writel(0xf00, hsc_addr);
+
+	/* CSI mode: reserved; DI control mode: legacy (from Freescale BSP) */
+	__raw_writel(__raw_readl(hsc_addr + 0x800) | 0x30ff,
+		hsc_addr + 0x800);
+
+	iounmap(hsc_addr);
+}
+
+static void __init imx51_dt_init(void)
+{
+	struct platform_device_info devinfo = { .name = "cpufreq-dt", };
+
+	imx51_ipu_mipi_setup();
+	imx_src_init();
+
+	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+	platform_device_register_full(&devinfo);
+}
+
+static void __init imx51_init_late(void)
+{
+	mx51_neon_fixup();
+	imx51_pm_init();
+}
+
+static const char * const imx51_dt_board_compat[] __initconst = {
+	"fsl,imx51",
+	NULL
+};
+
+DT_MACHINE_START(IMX51_DT, "Freescale i.MX51 (Device Tree Support)")
+	.init_early	= imx51_init_early,
+	.init_irq	= tzic_init_irq,
+	.init_machine	= imx51_dt_init,
+	.init_late	= imx51_init_late,
+	.dt_compat	= imx51_dt_board_compat,
+MACHINE_END