pxa25x.c (39fe5434cb9de5da40510028b17b96bc4eb312b3) pxa25x.c (15a4033354c68eb75e417ab60771f36212610820)
1/*
2 * linux/arch/arm/mach-pxa/pxa25x.c
3 *
4 * Author: Nicolas Pitre
5 * Created: Jun 15, 2001
6 * Copyright: MontaVista Software Inc.
7 *
8 * Code specific to PXA21x/25x/26x variants.

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48/* Crystal clock */
49#define BASE_CLK 3686400
50
51/*
52 * Get the clock frequency as reflected by CCCR and the turbo flag.
53 * We assume these values have been applied via a fcs.
54 * If info is not 0 we also display the current settings.
55 */
1/*
2 * linux/arch/arm/mach-pxa/pxa25x.c
3 *
4 * Author: Nicolas Pitre
5 * Created: Jun 15, 2001
6 * Copyright: MontaVista Software Inc.
7 *
8 * Code specific to PXA21x/25x/26x variants.

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48/* Crystal clock */
49#define BASE_CLK 3686400
50
51/*
52 * Get the clock frequency as reflected by CCCR and the turbo flag.
53 * We assume these values have been applied via a fcs.
54 * If info is not 0 we also display the current settings.
55 */
56unsigned int get_clk_frequency_khz(int info)
56unsigned int pxa25x_get_clk_frequency_khz(int info)
57{
58 unsigned long cccr, turbo;
59 unsigned int l, L, m, M, n2, N;
60
61 cccr = CCCR;
62 asm( "mrc\tp14, 0, %0, c6, c0, 0" : "=r" (turbo) );
63
64 l = L_clk_mult[(cccr >> 0) & 0x1f];

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81 printk( KERN_INFO "Turbo Mode clock: %d.%02dMHz (*%d.%d, %sactive)\n",
82 N / 1000000, (N % 1000000) / 10000, n2 / 2, (n2 % 2) * 5,
83 (turbo & 1) ? "" : "in" );
84 }
85
86 return (turbo & 1) ? (N/1000) : (M/1000);
87}
88
57{
58 unsigned long cccr, turbo;
59 unsigned int l, L, m, M, n2, N;
60
61 cccr = CCCR;
62 asm( "mrc\tp14, 0, %0, c6, c0, 0" : "=r" (turbo) );
63
64 l = L_clk_mult[(cccr >> 0) & 0x1f];

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81 printk( KERN_INFO "Turbo Mode clock: %d.%02dMHz (*%d.%d, %sactive)\n",
82 N / 1000000, (N % 1000000) / 10000, n2 / 2, (n2 % 2) * 5,
83 (turbo & 1) ? "" : "in" );
84 }
85
86 return (turbo & 1) ? (N/1000) : (M/1000);
87}
88
89EXPORT_SYMBOL(get_clk_frequency_khz);
90
91/*
92 * Return the current memory clock frequency in units of 10kHz
93 */
89/*
90 * Return the current memory clock frequency in units of 10kHz
91 */
94unsigned int get_memclk_frequency_10khz(void)
92unsigned int pxa25x_get_memclk_frequency_10khz(void)
95{
96 return L_clk_mult[(CCCR >> 0) & 0x1f] * BASE_CLK / 10000;
97}
98
93{
94 return L_clk_mult[(CCCR >> 0) & 0x1f] * BASE_CLK / 10000;
95}
96
99EXPORT_SYMBOL(get_memclk_frequency_10khz);
100
101/*
102 * Return the current LCD clock frequency in units of 10kHz
103 */
104unsigned int get_lcdclk_frequency_10khz(void)
105{
106 return get_memclk_frequency_10khz();
107}
108
109EXPORT_SYMBOL(get_lcdclk_frequency_10khz);
110
111#ifdef CONFIG_PM
112
113#define SAVE(x) sleep_save[SLEEP_SAVE_##x] = x
114#define RESTORE(x) x = sleep_save[SLEEP_SAVE_##x]
115
116#define RESTORE_GPLEVEL(n) do { \
117 GPSR##n = sleep_save[SLEEP_SAVE_GPLR##n]; \
118 GPCR##n = ~sleep_save[SLEEP_SAVE_GPLR##n]; \

--- 129 unchanged lines hidden --- 		97#ifdef CONFIG_PM
98
99#define SAVE(x) sleep_save[SLEEP_SAVE_##x] = x
100#define RESTORE(x) x = sleep_save[SLEEP_SAVE_##x]
101
102#define RESTORE_GPLEVEL(n) do { \
103 GPSR##n = sleep_save[SLEEP_SAVE_GPLR##n]; \
104 GPCR##n = ~sleep_save[SLEEP_SAVE_GPLR##n]; \

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