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14#include <linux/types.h>
15#include <linux/kernel.h>
16#include <linux/device.h>
17#include <linux/clk.h>
18#include <linux/err.h>
19
20#include <plat/cpu.h>
21#include <plat/cpu-freq-core.h>
22
23static struct cpufreq_frequency_table s3c2440_plls_12[] = {
24 { .frequency = 75000000, .driver_data = PLLVAL(0x75, 3, 3), },
25 { .frequency = 80000000, .driver_data = PLLVAL(0x98, 4, 3), },
26 { .frequency = 90000000, .driver_data = PLLVAL(0x70, 2, 3), },
27 { .frequency = 100000000, .driver_data = PLLVAL(0x5c, 1, 3), },
28 { .frequency = 110000000, .driver_data = PLLVAL(0x66, 1, 3), },
29 { .frequency = 120000000, .driver_data = PLLVAL(0x70, 1, 3), },
30 { .frequency = 150000000, .driver_data = PLLVAL(0x75, 3, 2), },
31 { .frequency = 160000000, .driver_data = PLLVAL(0x98, 4, 2), },
32 { .frequency = 170000000, .driver_data = PLLVAL(0x4d, 1, 2), },
33 { .frequency = 180000000, .driver_data = PLLVAL(0x70, 2, 2), },
34 { .frequency = 190000000, .driver_data = PLLVAL(0x57, 1, 2), },
35 { .frequency = 200000000, .driver_data = PLLVAL(0x5c, 1, 2), },
36 { .frequency = 210000000, .driver_data = PLLVAL(0x84, 2, 2), },
37 { .frequency = 220000000, .driver_data = PLLVAL(0x66, 1, 2), },
38 { .frequency = 230000000, .driver_data = PLLVAL(0x6b, 1, 2), },
39 { .frequency = 240000000, .driver_data = PLLVAL(0x70, 1, 2), },
40 { .frequency = 300000000, .driver_data = PLLVAL(0x75, 3, 1), },
41 { .frequency = 310000000, .driver_data = PLLVAL(0x93, 4, 1), },
42 { .frequency = 320000000, .driver_data = PLLVAL(0x98, 4, 1), },
43 { .frequency = 330000000, .driver_data = PLLVAL(0x66, 2, 1), },
44 { .frequency = 340000000, .driver_data = PLLVAL(0x4d, 1, 1), },
45 { .frequency = 350000000, .driver_data = PLLVAL(0xa7, 4, 1), },
46 { .frequency = 360000000, .driver_data = PLLVAL(0x70, 2, 1), },
47 { .frequency = 370000000, .driver_data = PLLVAL(0xb1, 4, 1), },
48 { .frequency = 380000000, .driver_data = PLLVAL(0x57, 1, 1), },
49 { .frequency = 390000000, .driver_data = PLLVAL(0x7a, 2, 1), },
50 { .frequency = 400000000, .driver_data = PLLVAL(0x5c, 1, 1), },
51};
52
53static int s3c2440_plls12_add(struct device *dev, struct subsys_interface *sif)
54{
55 struct clk *xtal_clk;
56 unsigned long xtal;
57
58 xtal_clk = clk_get(NULL, "xtal");
59 if (IS_ERR(xtal_clk))
60 return PTR_ERR(xtal_clk);
61
62 xtal = clk_get_rate(xtal_clk);
63 clk_put(xtal_clk);
64
65 if (xtal == 12000000) {
66 printk(KERN_INFO "Using PLL table for 12MHz crystal\n");
67 return s3c_plltab_register(s3c2440_plls_12,
68 ARRAY_SIZE(s3c2440_plls_12));
69 }
70
71 return 0;
72}
73
74static struct subsys_interface s3c2440_plls12_interface = {
75 .name = "s3c2440_plls12",
76 .subsys = &s3c2440_subsys,
77 .add_dev = s3c2440_plls12_add,
78};
79
80static int __init s3c2440_pll_12mhz(void)
81{
82 return subsys_interface_register(&s3c2440_plls12_interface);
83
84}
85arch_initcall(s3c2440_pll_12mhz);
86
87static struct subsys_interface s3c2442_plls12_interface = {
88 .name = "s3c2442_plls12",
89 .subsys = &s3c2442_subsys,
90 .add_dev = s3c2440_plls12_add,
91};
92
93static int __init s3c2442_pll_12mhz(void)
94{
95 return subsys_interface_register(&s3c2442_plls12_interface);
96
97}
98arch_initcall(s3c2442_pll_12mhz);
99