zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/arch/arm/mach-pxa/generic.c b/ap/os/linux/linux-3.4.x/arch/arm/mach-pxa/generic.c
new file mode 100644
index 0000000..4225417
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/arch/arm/mach-pxa/generic.c
@@ -0,0 +1,97 @@
+/*
+ * linux/arch/arm/mach-pxa/generic.c
+ *
+ * Author: Nicolas Pitre
+ * Created: Jun 15, 2001
+ * Copyright: MontaVista Software Inc.
+ *
+ * Code common to all PXA machines.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Since this file should be linked before any other machine specific file,
+ * the __initcall() here will be executed first. This serves as default
+ * initialization stuff for PXA machines which can be overridden later if
+ * need be.
+ */
+#include <linux/gpio.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+#include <mach/hardware.h>
+#include <asm/mach/map.h>
+#include <asm/mach-types.h>
+
+#include <mach/reset.h>
+#include <mach/smemc.h>
+#include <mach/pxa3xx-regs.h>
+
+#include "generic.h"
+
+void clear_reset_status(unsigned int mask)
+{
+ if (cpu_is_pxa2xx())
+ pxa2xx_clear_reset_status(mask);
+ else {
+ /* RESET_STATUS_* has a 1:1 mapping with ARSR */
+ ARSR = mask;
+ }
+}
+
+unsigned long get_clock_tick_rate(void)
+{
+ unsigned long clock_tick_rate;
+
+ if (cpu_is_pxa25x())
+ clock_tick_rate = 3686400;
+ else if (machine_is_mainstone())
+ clock_tick_rate = 3249600;
+ else
+ clock_tick_rate = 3250000;
+
+ return clock_tick_rate;
+}
+EXPORT_SYMBOL(get_clock_tick_rate);
+
+/*
+ * Get the clock frequency as reflected by CCCR and the turbo flag.
+ * We assume these values have been applied via a fcs.
+ * If info is not 0 we also display the current settings.
+ */
+unsigned int get_clk_frequency_khz(int info)
+{
+ if (cpu_is_pxa25x())
+ return pxa25x_get_clk_frequency_khz(info);
+ else if (cpu_is_pxa27x())
+ return pxa27x_get_clk_frequency_khz(info);
+ return 0;
+}
+EXPORT_SYMBOL(get_clk_frequency_khz);
+
+/*
+ * Intel PXA2xx internal register mapping.
+ *
+ * Note: virtual 0xfffe0000-0xffffffff is reserved for the vector table
+ * and cache flush area.
+ */
+static struct map_desc common_io_desc[] __initdata = {
+ { /* Devs */
+ .virtual = 0xf2000000,
+ .pfn = __phys_to_pfn(0x40000000),
+ .length = 0x02000000,
+ .type = MT_DEVICE
+ }, { /* UNCACHED_PHYS_0 */
+ .virtual = 0xff000000,
+ .pfn = __phys_to_pfn(0x00000000),
+ .length = 0x00100000,
+ .type = MT_DEVICE
+ }
+};
+
+void __init pxa_map_io(void)
+{
+ iotable_init(ARRAY_AND_SIZE(common_io_desc));
+}