2 * linux/arch/arm/mach-pxa/generic.c
4 * Author: Nicolas Pitre
5 * Created: Jun 15, 2001
6 * Copyright: MontaVista Software Inc.
8 * Code common to all PXA machines.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
14 * Since this file should be linked before any other machine specific file,
15 * the __initcall() here will be executed first. This serves as default
16 * initialization stuff for PXA machines which can be overridden later if
19 #include <linux/gpio.h>
20 #include <linux/module.h>
21 #include <linux/kernel.h>
22 #include <linux/init.h>
24 #include <mach/hardware.h>
25 #include <asm/mach/map.h>
26 #include <asm/mach-types.h>
28 #include <mach/irqs.h>
29 #include <mach/reset.h>
30 #include <mach/smemc.h>
31 #include <mach/pxa3xx-regs.h>
34 #include <clocksource/pxa.h>
36 void clear_reset_status(unsigned int mask)
39 pxa2xx_clear_reset_status(mask);
41 /* RESET_STATUS_* has a 1:1 mapping with ARSR */
47 * For non device-tree builds, keep legacy timer init
49 void __init pxa_timer_init(void)
57 pxa_timer_nodt_init(IRQ_OST0, io_p2v(0x40a00000));
61 * Get the clock frequency as reflected by CCCR and the turbo flag.
62 * We assume these values have been applied via a fcs.
63 * If info is not 0 we also display the current settings.
65 unsigned int get_clk_frequency_khz(int info)
68 return pxa25x_get_clk_frequency_khz(info);
69 else if (cpu_is_pxa27x())
70 return pxa27x_get_clk_frequency_khz(info);
73 EXPORT_SYMBOL(get_clk_frequency_khz);
76 * Intel PXA2xx internal register mapping.
78 * Note: virtual 0xfffe0000-0xffffffff is reserved for the vector table
79 * and cache flush area.
81 static struct map_desc common_io_desc[] __initdata = {
83 .virtual = (unsigned long)PERIPH_VIRT,
84 .pfn = __phys_to_pfn(PERIPH_PHYS),
85 .length = PERIPH_SIZE,
90 void __init pxa_map_io(void)
93 iotable_init(ARRAY_AND_SIZE(common_io_desc));