1/*
 2 *  linux/arch/arm/mach-pxa/generic.c
 3 *
 4 *  Author:	Nicolas Pitre
 5 *  Created:	Jun 15, 2001
 6 *  Copyright:	MontaVista Software Inc.
 7 *
 8 * Code common to all PXA machines.
 9 *
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.
13 *
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
17 * need be.
18 */
19#include <linux/gpio.h>
20#include <linux/module.h>
21#include <linux/kernel.h>
22#include <linux/init.h>
23
24#include <mach/hardware.h>
25#include <asm/mach/map.h>
26#include <asm/mach-types.h>
27
 
28#include <mach/reset.h>
29#include <mach/smemc.h>
30#include <mach/pxa3xx-regs.h>
31
32#include "generic.h"
 
33
34void clear_reset_status(unsigned int mask)
35{
36	if (cpu_is_pxa2xx())
37		pxa2xx_clear_reset_status(mask);
38	else {
39		/* RESET_STATUS_* has a 1:1 mapping with ARSR */
40		ARSR = mask;
41	}
42}
43
44unsigned long get_clock_tick_rate(void)
 
 
 
45{
46	unsigned long clock_tick_rate;
47
48	if (cpu_is_pxa25x())
49		clock_tick_rate = 3686400;
50	else if (machine_is_mainstone())
51		clock_tick_rate = 3249600;
52	else
53		clock_tick_rate = 3250000;
54
55	return clock_tick_rate;
56}
57EXPORT_SYMBOL(get_clock_tick_rate);
58
59/*
60 * Get the clock frequency as reflected by CCCR and the turbo flag.
61 * We assume these values have been applied via a fcs.
62 * If info is not 0 we also display the current settings.
63 */
64unsigned int get_clk_frequency_khz(int info)
65{
66	if (cpu_is_pxa25x())
67		return pxa25x_get_clk_frequency_khz(info);
68	else if (cpu_is_pxa27x())
69		return pxa27x_get_clk_frequency_khz(info);
70	return 0;
71}
72EXPORT_SYMBOL(get_clk_frequency_khz);
73
74/*
75 * Intel PXA2xx internal register mapping.
76 *
77 * Note: virtual 0xfffe0000-0xffffffff is reserved for the vector table
78 *       and cache flush area.
79 */
80static struct map_desc common_io_desc[] __initdata = {
81  	{	/* Devs */
82		.virtual	=  0xf2000000,
83		.pfn		= __phys_to_pfn(0x40000000),
84		.length		= 0x02000000,
85		.type		= MT_DEVICE
86	}, {	/* UNCACHED_PHYS_0 */
87		.virtual	= 0xff000000,
88		.pfn		= __phys_to_pfn(0x00000000),
89		.length		= 0x00100000,
90		.type		= MT_DEVICE
91	}
92};
93
94void __init pxa_map_io(void)
95{
 
96	iotable_init(ARRAY_AND_SIZE(common_io_desc));
97}

 1// SPDX-License-Identifier: GPL-2.0-only
 2/*
 3 *  linux/arch/arm/mach-pxa/generic.c
 4 *
 5 *  Author:	Nicolas Pitre
 6 *  Created:	Jun 15, 2001
 7 *  Copyright:	MontaVista Software Inc.
 8 *
 9 * Code common to all PXA machines.
10 *
 
 
 
 
11 * Since this file should be linked before any other machine specific file,
12 * the __initcall() here will be executed first.  This serves as default
13 * initialization stuff for PXA machines which can be overridden later if
14 * need be.
15 */
16#include <linux/gpio.h>
17#include <linux/module.h>
18#include <linux/kernel.h>
19#include <linux/init.h>
20
21#include <mach/hardware.h>
22#include <asm/mach/map.h>
23#include <asm/mach-types.h>
24
25#include <mach/irqs.h>
26#include <mach/reset.h>
27#include <mach/smemc.h>
28#include <mach/pxa3xx-regs.h>
29
30#include "generic.h"
31#include <clocksource/pxa.h>
32
33void clear_reset_status(unsigned int mask)
34{
35	if (cpu_is_pxa2xx())
36		pxa2xx_clear_reset_status(mask);
37	else {
38		/* RESET_STATUS_* has a 1:1 mapping with ARSR */
39		ARSR = mask;
40	}
41}
42
43/*
44 * For non device-tree builds, keep legacy timer init
45 */
46void __init pxa_timer_init(void)
47{
 
 
48	if (cpu_is_pxa25x())
49		pxa25x_clocks_init();
50	if (cpu_is_pxa27x())
51		pxa27x_clocks_init();
52	if (cpu_is_pxa3xx())
53		pxa3xx_clocks_init();
54	pxa_timer_nodt_init(IRQ_OST0, io_p2v(0x40a00000));
 
55}
 
56
57/*
58 * Get the clock frequency as reflected by CCCR and the turbo flag.
59 * We assume these values have been applied via a fcs.
60 * If info is not 0 we also display the current settings.
61 */
62unsigned int get_clk_frequency_khz(int info)
63{
64	if (cpu_is_pxa25x())
65		return pxa25x_get_clk_frequency_khz(info);
66	else if (cpu_is_pxa27x())
67		return pxa27x_get_clk_frequency_khz(info);
68	return 0;
69}
70EXPORT_SYMBOL(get_clk_frequency_khz);
71
72/*
73 * Intel PXA2xx internal register mapping.
74 *
75 * Note: virtual 0xfffe0000-0xffffffff is reserved for the vector table
76 *       and cache flush area.
77 */
78static struct map_desc common_io_desc[] __initdata = {
79  	{	/* Devs */
80		.virtual	= (unsigned long)PERIPH_VIRT,
81		.pfn		= __phys_to_pfn(PERIPH_PHYS),
82		.length		= PERIPH_SIZE,
 
 
 
 
 
83		.type		= MT_DEVICE
84	}
85};
86
87void __init pxa_map_io(void)
88{
89	debug_ll_io_init();
90	iotable_init(ARRAY_AND_SIZE(common_io_desc));
91}