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authorOlof Johansson <olof@lixom.net>2013-02-05 19:14:35 -0500
committerOlof Johansson <olof@lixom.net>2013-02-05 19:14:35 -0500
commit7dcbeef7926fefa53b0466a27c90238744fb11d8 (patch)
tree86d7406fb86068b6f5177fa8d9446ffe7403841a /arch/arm/mach-s3c24xx
parentf0390669d13b0a1592fc7906445b4f6c8ec5af23 (diff)
parentacf2d41d8595829eb0ac7bf6891f4875a78d4d6e (diff)
Merge branch 'next/cleanup-s3c24xx' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/cleanup
From Kukjin Kim: Basically, this patch merges mach-s3c2410, mach-s3c2412 and mach-s3c2440 into mach-s3c24xx. * 'next/cleanup-s3c24xx' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: S3C24XX: Move mach-s3c2440/ pll into mach-s3c24xx/ ARM: S3C24XX: Move mach-s3c2440/ cpufreq driver into mach-s3c24xx/ ARM: S3C24XX: Move mach-s3c2412/ cpufreq driver into mach-s3c24xx/ ARM: S3C2412: Remove useless codes mach-s3c2412/gpio.c ARM: S3C24XX: Move mach-s3c2410/ pll into mach-s3c24xx/ ARM: S3C24XX: Move mach-s3c2410/ cpufreq into mach-s3c24xx/
Diffstat (limited to 'arch/arm/mach-s3c24xx')
-rw-r--r--arch/arm/mach-s3c24xx/Kconfig56
-rw-r--r--arch/arm/mach-s3c24xx/Makefile6
-rw-r--r--arch/arm/mach-s3c24xx/cpufreq-s3c2410.c160
-rw-r--r--arch/arm/mach-s3c24xx/cpufreq-s3c2412.c257
-rw-r--r--arch/arm/mach-s3c24xx/cpufreq-s3c2440.c312
-rw-r--r--arch/arm/mach-s3c24xx/include/mach/hardware.h6
-rw-r--r--arch/arm/mach-s3c24xx/pll-s3c2410.c96
-rw-r--r--arch/arm/mach-s3c24xx/pll-s3c2440-12000000.c98
-rw-r--r--arch/arm/mach-s3c24xx/pll-s3c2440-16934400.c125
9 files changed, 1110 insertions, 6 deletions
diff --git a/arch/arm/mach-s3c24xx/Kconfig b/arch/arm/mach-s3c24xx/Kconfig
index 25df14a9e268..67df58bdc096 100644
--- a/arch/arm/mach-s3c24xx/Kconfig
+++ b/arch/arm/mach-s3c24xx/Kconfig
@@ -127,6 +127,20 @@ config S3C2410_PM
127 127
128if CPU_S3C2410 128if CPU_S3C2410
129 129
130config S3C2410_CPUFREQ
131 bool
132 depends on CPU_FREQ_S3C24XX && CPU_S3C2410
133 select S3C2410_CPUFREQ_UTILS
134 help
135 CPU Frequency scaling support for S3C2410
136
137config S3C2410_PLL
138 bool
139 depends on S3C2410_CPUFREQ && CPU_FREQ_S3C24XX_PLL
140 default y
141 help
142 Select the PLL table for the S3C2410
143
130config S3C24XX_SIMTEC_NOR 144config S3C24XX_SIMTEC_NOR
131 bool 145 bool
132 help 146 help
@@ -266,6 +280,14 @@ config CPU_S3C2412_ONLY
266 !CPU_S3C2443 && CPU_S3C2412 280 !CPU_S3C2443 && CPU_S3C2412
267 default y 281 default y
268 282
283config S3C2412_CPUFREQ
284 bool
285 depends on CPU_FREQ_S3C24XX && CPU_S3C2412
286 default y
287 select S3C2412_IOTIMING
288 help
289 CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs.
290
269config S3C2412_DMA 291config S3C2412_DMA
270 bool 292 bool
271 help 293 help
@@ -365,11 +387,45 @@ endif # CPU_S3C2416
365 387
366if CPU_S3C2440 388if CPU_S3C2440
367 389
390config S3C2440_CPUFREQ
391 bool "S3C2440/S3C2442 CPU Frequency scaling support"
392 depends on CPU_FREQ_S3C24XX && (CPU_S3C2440 || CPU_S3C2442)
393 default y
394 select S3C2410_CPUFREQ_UTILS
395 help
396 CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.
397
368config S3C2440_DMA 398config S3C2440_DMA
369 bool 399 bool
370 help 400 help
371 Support for S3C2440 specific DMA code5A 401 Support for S3C2440 specific DMA code5A
372 402
403config S3C2440_XTAL_12000000
404 bool
405 help
406 Indicate that the build needs to support 12MHz system
407 crystal.
408
409config S3C2440_XTAL_16934400
410 bool
411 help
412 Indicate that the build needs to support 16.9344MHz system
413 crystal.
414
415config S3C2440_PLL_12000000
416 bool
417 depends on S3C2440_CPUFREQ && S3C2440_XTAL_12000000
418 default y if CPU_FREQ_S3C24XX_PLL
419 help
420 PLL tables for S3C2440 or S3C2442 CPUs with 12MHz crystals.
421
422config S3C2440_PLL_16934400
423 bool
424 depends on S3C2440_CPUFREQ && S3C2440_XTAL_16934400
425 default y if CPU_FREQ_S3C24XX_PLL
426 help
427 PLL tables for S3C2440 or S3C2442 CPUs with 16.934MHz crystals.
428
373comment "S3C2440 Boards" 429comment "S3C2440 Boards"
374 430
375# 431#
diff --git a/arch/arm/mach-s3c24xx/Makefile b/arch/arm/mach-s3c24xx/Makefile
index 0ab6ab15da4c..08b87cdb98b7 100644
--- a/arch/arm/mach-s3c24xx/Makefile
+++ b/arch/arm/mach-s3c24xx/Makefile
@@ -17,10 +17,13 @@ obj- :=
17obj-y += common.o 17obj-y += common.o
18 18
19obj-$(CONFIG_CPU_S3C2410) += s3c2410.o 19obj-$(CONFIG_CPU_S3C2410) += s3c2410.o
20obj-$(CONFIG_S3C2410_CPUFREQ) += cpufreq-s3c2410.o
20obj-$(CONFIG_S3C2410_DMA) += dma-s3c2410.o 21obj-$(CONFIG_S3C2410_DMA) += dma-s3c2410.o
22obj-$(CONFIG_S3C2410_PLL) += pll-s3c2410.o
21obj-$(CONFIG_S3C2410_PM) += pm-s3c2410.o sleep-s3c2410.o 23obj-$(CONFIG_S3C2410_PM) += pm-s3c2410.o sleep-s3c2410.o
22 24
23obj-$(CONFIG_CPU_S3C2412) += s3c2412.o irq-s3c2412.o clock-s3c2412.o 25obj-$(CONFIG_CPU_S3C2412) += s3c2412.o irq-s3c2412.o clock-s3c2412.o
26obj-$(CONFIG_S3C2412_CPUFREQ) += cpufreq-s3c2412.o
24obj-$(CONFIG_S3C2412_DMA) += dma-s3c2412.o 27obj-$(CONFIG_S3C2412_DMA) += dma-s3c2412.o
25obj-$(CONFIG_S3C2412_PM) += pm-s3c2412.o 28obj-$(CONFIG_S3C2412_PM) += pm-s3c2412.o
26obj-$(CONFIG_S3C2412_PM_SLEEP) += sleep-s3c2412.o 29obj-$(CONFIG_S3C2412_PM_SLEEP) += sleep-s3c2412.o
@@ -31,7 +34,10 @@ obj-$(CONFIG_S3C2416_PM) += pm-s3c2416.o
31obj-$(CONFIG_CPU_S3C2440) += s3c2440.o irq-s3c2440.o clock-s3c2440.o 34obj-$(CONFIG_CPU_S3C2440) += s3c2440.o irq-s3c2440.o clock-s3c2440.o
32obj-$(CONFIG_CPU_S3C2442) += s3c2442.o 35obj-$(CONFIG_CPU_S3C2442) += s3c2442.o
33obj-$(CONFIG_CPU_S3C244X) += s3c244x.o irq-s3c244x.o clock-s3c244x.o 36obj-$(CONFIG_CPU_S3C244X) += s3c244x.o irq-s3c244x.o clock-s3c244x.o
37obj-$(CONFIG_S3C2440_CPUFREQ) += cpufreq-s3c2440.o
34obj-$(CONFIG_S3C2440_DMA) += dma-s3c2440.o 38obj-$(CONFIG_S3C2440_DMA) += dma-s3c2440.o
39obj-$(CONFIG_S3C2440_PLL_12000000) += pll-s3c2440-12000000.o
40obj-$(CONFIG_S3C2440_PLL_16934400) += pll-s3c2440-16934400.o
35 41
36obj-$(CONFIG_CPU_S3C2443) += s3c2443.o irq-s3c2443.o clock-s3c2443.o 42obj-$(CONFIG_CPU_S3C2443) += s3c2443.o irq-s3c2443.o clock-s3c2443.o
37 43
diff --git a/arch/arm/mach-s3c24xx/cpufreq-s3c2410.c b/arch/arm/mach-s3c24xx/cpufreq-s3c2410.c
new file mode 100644
index 000000000000..cfa0dd8723ec
--- /dev/null
+++ b/arch/arm/mach-s3c24xx/cpufreq-s3c2410.c
@@ -0,0 +1,160 @@
1/*
2 * Copyright (c) 2006-2008 Simtec Electronics
3 * http://armlinux.simtec.co.uk/
4 * Ben Dooks <ben@simtec.co.uk>
5 *
6 * S3C2410 CPU Frequency scaling
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11*/
12
13#include <linux/init.h>
14#include <linux/module.h>
15#include <linux/interrupt.h>
16#include <linux/ioport.h>
17#include <linux/cpufreq.h>
18#include <linux/device.h>
19#include <linux/clk.h>
20#include <linux/err.h>
21#include <linux/io.h>
22
23#include <asm/mach/arch.h>
24#include <asm/mach/map.h>
25
26#include <mach/regs-clock.h>
27
28#include <plat/cpu.h>
29#include <plat/clock.h>
30#include <plat/cpu-freq-core.h>
31
32/* Note, 2410A has an extra mode for 1:4:4 ratio, bit 2 of CLKDIV */
33
34static void s3c2410_cpufreq_setdivs(struct s3c_cpufreq_config *cfg)
35{
36 u32 clkdiv = 0;
37
38 if (cfg->divs.h_divisor == 2)
39 clkdiv |= S3C2410_CLKDIVN_HDIVN;
40
41 if (cfg->divs.p_divisor != cfg->divs.h_divisor)
42 clkdiv |= S3C2410_CLKDIVN_PDIVN;
43
44 __raw_writel(clkdiv, S3C2410_CLKDIVN);
45}
46
47static int s3c2410_cpufreq_calcdivs(struct s3c_cpufreq_config *cfg)
48{
49 unsigned long hclk, fclk, pclk;
50 unsigned int hdiv, pdiv;
51 unsigned long hclk_max;
52
53 fclk = cfg->freq.fclk;
54 hclk_max = cfg->max.hclk;
55
56 cfg->freq.armclk = fclk;
57
58 s3c_freq_dbg("%s: fclk is %lu, max hclk %lu\n",
59 __func__, fclk, hclk_max);
60
61 hdiv = (fclk > cfg->max.hclk) ? 2 : 1;
62 hclk = fclk / hdiv;
63
64 if (hclk > cfg->max.hclk) {
65 s3c_freq_dbg("%s: hclk too big\n", __func__);
66 return -EINVAL;
67 }
68
69 pdiv = (hclk > cfg->max.pclk) ? 2 : 1;
70 pclk = hclk / pdiv;
71
72 if (pclk > cfg->max.pclk) {
73 s3c_freq_dbg("%s: pclk too big\n", __func__);
74 return -EINVAL;
75 }
76
77 pdiv *= hdiv;
78
79 /* record the result */
80 cfg->divs.p_divisor = pdiv;
81 cfg->divs.h_divisor = hdiv;
82
83 return 0;
84}
85
86static struct s3c_cpufreq_info s3c2410_cpufreq_info = {
87 .max = {
88 .fclk = 200000000,
89 .hclk = 100000000,
90 .pclk = 50000000,
91 },
92
93 /* transition latency is about 5ms worst-case, so
94 * set 10ms to be sure */
95 .latency = 10000000,
96
97 .locktime_m = 150,
98 .locktime_u = 150,
99 .locktime_bits = 12,
100
101 .need_pll = 1,
102
103 .name = "s3c2410",
104 .calc_iotiming = s3c2410_iotiming_calc,
105 .set_iotiming = s3c2410_iotiming_set,
106 .get_iotiming = s3c2410_iotiming_get,
107 .resume_clocks = s3c2410_setup_clocks,
108
109 .set_fvco = s3c2410_set_fvco,
110 .set_refresh = s3c2410_cpufreq_setrefresh,
111 .set_divs = s3c2410_cpufreq_setdivs,
112 .calc_divs = s3c2410_cpufreq_calcdivs,
113
114 .debug_io_show = s3c_cpufreq_debugfs_call(s3c2410_iotiming_debugfs),
115};
116
117static int s3c2410_cpufreq_add(struct device *dev,
118 struct subsys_interface *sif)
119{
120 return s3c_cpufreq_register(&s3c2410_cpufreq_info);
121}
122
123static struct subsys_interface s3c2410_cpufreq_interface = {
124 .name = "s3c2410_cpufreq",
125 .subsys = &s3c2410_subsys,
126 .add_dev = s3c2410_cpufreq_add,
127};
128
129static int __init s3c2410_cpufreq_init(void)
130{
131 return subsys_interface_register(&s3c2410_cpufreq_interface);
132}
133arch_initcall(s3c2410_cpufreq_init);
134
135static int s3c2410a_cpufreq_add(struct device *dev,
136 struct subsys_interface *sif)
137{
138 /* alter the maximum freq settings for S3C2410A. If a board knows
139 * it only has a maximum of 200, then it should register its own
140 * limits. */
141
142 s3c2410_cpufreq_info.max.fclk = 266000000;
143 s3c2410_cpufreq_info.max.hclk = 133000000;
144 s3c2410_cpufreq_info.max.pclk = 66500000;
145 s3c2410_cpufreq_info.name = "s3c2410a";
146
147 return s3c2410_cpufreq_add(dev, sif);
148}
149
150static struct subsys_interface s3c2410a_cpufreq_interface = {
151 .name = "s3c2410a_cpufreq",
152 .subsys = &s3c2410a_subsys,
153 .add_dev = s3c2410a_cpufreq_add,
154};
155
156static int __init s3c2410a_cpufreq_init(void)
157{
158 return subsys_interface_register(&s3c2410a_cpufreq_interface);
159}
160arch_initcall(s3c2410a_cpufreq_init);
diff --git a/arch/arm/mach-s3c24xx/cpufreq-s3c2412.c b/arch/arm/mach-s3c24xx/cpufreq-s3c2412.c
new file mode 100644
index 000000000000..c8f05f309eee
--- /dev/null
+++ b/arch/arm/mach-s3c24xx/cpufreq-s3c2412.c
@@ -0,0 +1,257 @@
1/*
2 * Copyright 2008 Simtec Electronics
3 * http://armlinux.simtec.co.uk/
4 * Ben Dooks <ben@simtec.co.uk>
5 *
6 * S3C2412 CPU Frequency scalling
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11*/
12
13#include <linux/init.h>
14#include <linux/module.h>
15#include <linux/interrupt.h>
16#include <linux/ioport.h>
17#include <linux/cpufreq.h>
18#include <linux/device.h>
19#include <linux/delay.h>
20#include <linux/clk.h>
21#include <linux/err.h>
22#include <linux/io.h>
23
24#include <asm/mach/arch.h>
25#include <asm/mach/map.h>
26
27#include <mach/regs-clock.h>
28#include <mach/regs-s3c2412-mem.h>
29
30#include <plat/cpu.h>
31#include <plat/clock.h>
32#include <plat/cpu-freq-core.h>
33
34/* our clock resources. */
35static struct clk *xtal;
36static struct clk *fclk;
37static struct clk *hclk;
38static struct clk *armclk;
39
40/* HDIV: 1, 2, 3, 4, 6, 8 */
41
42static int s3c2412_cpufreq_calcdivs(struct s3c_cpufreq_config *cfg)
43{
44 unsigned int hdiv, pdiv, armdiv, dvs;
45 unsigned long hclk, fclk, armclk, armdiv_clk;
46 unsigned long hclk_max;
47
48 fclk = cfg->freq.fclk;
49 armclk = cfg->freq.armclk;
50 hclk_max = cfg->max.hclk;
51
52 /* We can't run hclk above armclk as at the best we have to
53 * have armclk and hclk in dvs mode. */
54
55 if (hclk_max > armclk)
56 hclk_max = armclk;
57
58 s3c_freq_dbg("%s: fclk=%lu, armclk=%lu, hclk_max=%lu\n",
59 __func__, fclk, armclk, hclk_max);
60 s3c_freq_dbg("%s: want f=%lu, arm=%lu, h=%lu, p=%lu\n",
61 __func__, cfg->freq.fclk, cfg->freq.armclk,
62 cfg->freq.hclk, cfg->freq.pclk);
63
64 armdiv = fclk / armclk;
65
66 if (armdiv < 1)
67 armdiv = 1;
68 if (armdiv > 2)
69 armdiv = 2;
70
71 cfg->divs.arm_divisor = armdiv;
72 armdiv_clk = fclk / armdiv;
73
74 hdiv = armdiv_clk / hclk_max;
75 if (hdiv < 1)
76 hdiv = 1;
77
78 cfg->freq.hclk = hclk = armdiv_clk / hdiv;
79
80 /* set dvs depending on whether we reached armclk or not. */
81 cfg->divs.dvs = dvs = armclk < armdiv_clk;
82
83 /* update the actual armclk we achieved. */
84 cfg->freq.armclk = dvs ? hclk : armdiv_clk;
85
86 s3c_freq_dbg("%s: armclk %lu, hclk %lu, armdiv %d, hdiv %d, dvs %d\n",
87 __func__, armclk, hclk, armdiv, hdiv, cfg->divs.dvs);
88
89 if (hdiv > 4)
90 goto invalid;
91
92 pdiv = (hclk > cfg->max.pclk) ? 2 : 1;
93
94 if ((hclk / pdiv) > cfg->max.pclk)
95 pdiv++;
96
97 cfg->freq.pclk = hclk / pdiv;
98
99 s3c_freq_dbg("%s: pdiv %d\n", __func__, pdiv);
100
101 if (pdiv > 2)
102 goto invalid;
103
104 pdiv *= hdiv;
105
106 /* store the result, and then return */
107
108 cfg->divs.h_divisor = hdiv * armdiv;
109 cfg->divs.p_divisor = pdiv * armdiv;
110
111 return 0;
112
113invalid:
114 return -EINVAL;
115}
116
117static void s3c2412_cpufreq_setdivs(struct s3c_cpufreq_config *cfg)
118{
119 unsigned long clkdiv;
120 unsigned long olddiv;
121
122 olddiv = clkdiv = __raw_readl(S3C2410_CLKDIVN);
123
124 /* clear off current clock info */
125
126 clkdiv &= ~S3C2412_CLKDIVN_ARMDIVN;
127 clkdiv &= ~S3C2412_CLKDIVN_HDIVN_MASK;
128 clkdiv &= ~S3C2412_CLKDIVN_PDIVN;
129
130 if (cfg->divs.arm_divisor == 2)
131 clkdiv |= S3C2412_CLKDIVN_ARMDIVN;
132
133 clkdiv |= ((cfg->divs.h_divisor / cfg->divs.arm_divisor) - 1);
134
135 if (cfg->divs.p_divisor != cfg->divs.h_divisor)
136 clkdiv |= S3C2412_CLKDIVN_PDIVN;
137
138 s3c_freq_dbg("%s: div %08lx => %08lx\n", __func__, olddiv, clkdiv);
139 __raw_writel(clkdiv, S3C2410_CLKDIVN);
140
141 clk_set_parent(armclk, cfg->divs.dvs ? hclk : fclk);
142}
143
144static void s3c2412_cpufreq_setrefresh(struct s3c_cpufreq_config *cfg)
145{
146 struct s3c_cpufreq_board *board = cfg->board;
147 unsigned long refresh;
148
149 s3c_freq_dbg("%s: refresh %u ns, hclk %lu\n", __func__,
150 board->refresh, cfg->freq.hclk);
151
152 /* Reduce both the refresh time (in ns) and the frequency (in MHz)
153 * by 10 each to ensure that we do not overflow 32 bit numbers. This
154 * should work for HCLK up to 133MHz and refresh period up to 30usec.
155 */
156
157 refresh = (board->refresh / 10);
158 refresh *= (cfg->freq.hclk / 100);
159 refresh /= (1 * 1000 * 1000); /* 10^6 */
160
161 s3c_freq_dbg("%s: setting refresh 0x%08lx\n", __func__, refresh);
162 __raw_writel(refresh, S3C2412_REFRESH);
163}
164
165/* set the default cpu frequency information, based on an 200MHz part
166 * as we have no other way of detecting the speed rating in software.
167 */
168
169static struct s3c_cpufreq_info s3c2412_cpufreq_info = {
170 .max = {
171 .fclk = 200000000,
172 .hclk = 100000000,
173 .pclk = 50000000,
174 },
175
176 .latency = 5000000, /* 5ms */
177
178 .locktime_m = 150,
179 .locktime_u = 150,
180 .locktime_bits = 16,
181
182 .name = "s3c2412",
183 .set_refresh = s3c2412_cpufreq_setrefresh,
184 .set_divs = s3c2412_cpufreq_setdivs,
185 .calc_divs = s3c2412_cpufreq_calcdivs,
186
187 .calc_iotiming = s3c2412_iotiming_calc,
188 .set_iotiming = s3c2412_iotiming_set,
189 .get_iotiming = s3c2412_iotiming_get,
190
191 .resume_clocks = s3c2412_setup_clocks,
192
193 .debug_io_show = s3c_cpufreq_debugfs_call(s3c2412_iotiming_debugfs),
194};
195
196static int s3c2412_cpufreq_add(struct device *dev,
197 struct subsys_interface *sif)
198{
199 unsigned long fclk_rate;
200
201 hclk = clk_get(NULL, "hclk");
202 if (IS_ERR(hclk)) {
203 printk(KERN_ERR "%s: cannot find hclk clock\n", __func__);
204 return -ENOENT;
205 }
206
207 fclk = clk_get(NULL, "fclk");
208 if (IS_ERR(fclk)) {
209 printk(KERN_ERR "%s: cannot find fclk clock\n", __func__);
210 goto err_fclk;
211 }
212
213 fclk_rate = clk_get_rate(fclk);
214 if (fclk_rate > 200000000) {
215 printk(KERN_INFO
216 "%s: fclk %ld MHz, assuming 266MHz capable part\n",
217 __func__, fclk_rate / 1000000);
218 s3c2412_cpufreq_info.max.fclk = 266000000;
219 s3c2412_cpufreq_info.max.hclk = 133000000;
220 s3c2412_cpufreq_info.max.pclk = 66000000;
221 }
222
223 armclk = clk_get(NULL, "armclk");
224 if (IS_ERR(armclk)) {
225 printk(KERN_ERR "%s: cannot find arm clock\n", __func__);
226 goto err_armclk;
227 }
228
229 xtal = clk_get(NULL, "xtal");
230 if (IS_ERR(xtal)) {
231 printk(KERN_ERR "%s: cannot find xtal clock\n", __func__);
232 goto err_xtal;
233 }
234
235 return s3c_cpufreq_register(&s3c2412_cpufreq_info);
236
237err_xtal:
238 clk_put(armclk);
239err_armclk:
240 clk_put(fclk);
241err_fclk:
242 clk_put(hclk);
243
244 return -ENOENT;
245}
246
247static struct subsys_interface s3c2412_cpufreq_interface = {
248 .name = "s3c2412_cpufreq",
249 .subsys = &s3c2412_subsys,
250 .add_dev = s3c2412_cpufreq_add,
251};
252
253static int s3c2412_cpufreq_init(void)
254{
255 return subsys_interface_register(&s3c2412_cpufreq_interface);
256}
257arch_initcall(s3c2412_cpufreq_init);
diff --git a/arch/arm/mach-s3c24xx/cpufreq-s3c2440.c b/arch/arm/mach-s3c24xx/cpufreq-s3c2440.c
new file mode 100644
index 000000000000..72b2cc8a5a85
--- /dev/null
+++ b/arch/arm/mach-s3c24xx/cpufreq-s3c2440.c
@@ -0,0 +1,312 @@
1/*
2 * Copyright (c) 2006-2009 Simtec Electronics
3 * http://armlinux.simtec.co.uk/
4 * Ben Dooks <ben@simtec.co.uk>
5 * Vincent Sanders <vince@simtec.co.uk>
6 *
7 * S3C2440/S3C2442 CPU Frequency scaling
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12*/
13
14#include <linux/init.h>
15#include <linux/module.h>
16#include <linux/interrupt.h>
17#include <linux/ioport.h>
18#include <linux/cpufreq.h>
19#include <linux/device.h>
20#include <linux/delay.h>
21#include <linux/clk.h>
22#include <linux/err.h>
23#include <linux/io.h>
24
25#include <mach/hardware.h>
26
27#include <asm/mach/arch.h>
28#include <asm/mach/map.h>
29
30#include <mach/regs-clock.h>
31
32#include <plat/cpu.h>
33#include <plat/cpu-freq-core.h>
34#include <plat/clock.h>
35
36static struct clk *xtal;
37static struct clk *fclk;
38static struct clk *hclk;
39static struct clk *armclk;
40
41/* HDIV: 1, 2, 3, 4, 6, 8 */
42
43static inline int within_khz(unsigned long a, unsigned long b)
44{
45 long diff = a - b;
46
47 return (diff >= -1000 && diff <= 1000);
48}
49
50/**
51 * s3c2440_cpufreq_calcdivs - calculate divider settings
52 * @cfg: The cpu frequency settings.
53 *
54 * Calcualte the divider values for the given frequency settings
55 * specified in @cfg. The values are stored in @cfg for later use
56 * by the relevant set routine if the request settings can be reached.
57 */
58int s3c2440_cpufreq_calcdivs(struct s3c_cpufreq_config *cfg)
59{
60 unsigned int hdiv, pdiv;
61 unsigned long hclk, fclk, armclk;
62 unsigned long hclk_max;
63
64 fclk = cfg->freq.fclk;
65 armclk = cfg->freq.armclk;
66 hclk_max = cfg->max.hclk;
67
68 s3c_freq_dbg("%s: fclk is %lu, armclk %lu, max hclk %lu\n",
69 __func__, fclk, armclk, hclk_max);
70
71 if (armclk > fclk) {
72 printk(KERN_WARNING "%s: armclk > fclk\n", __func__);
73 armclk = fclk;
74 }
75
76 /* if we are in DVS, we need HCLK to be <= ARMCLK */
77 if (armclk < fclk && armclk < hclk_max)
78 hclk_max = armclk;
79
80 for (hdiv = 1; hdiv < 9; hdiv++) {
81 if (hdiv == 5 || hdiv == 7)
82 hdiv++;
83
84 hclk = (fclk / hdiv);
85 if (hclk <= hclk_max || within_khz(hclk, hclk_max))
86 break;
87 }
88
89 s3c_freq_dbg("%s: hclk %lu, div %d\n", __func__, hclk, hdiv);
90
91 if (hdiv > 8)
92 goto invalid;
93
94 pdiv = (hclk > cfg->max.pclk) ? 2 : 1;
95
96 if ((hclk / pdiv) > cfg->max.pclk)
97 pdiv++;
98
99 s3c_freq_dbg("%s: pdiv %d\n", __func__, pdiv);
100
101 if (pdiv > 2)
102 goto invalid;
103
104 pdiv *= hdiv;
105
106 /* calculate a valid armclk */
107
108 if (armclk < hclk)
109 armclk = hclk;
110
111 /* if we're running armclk lower than fclk, this really means
112 * that the system should go into dvs mode, which means that
113 * armclk is connected to hclk. */
114 if (armclk < fclk) {
115 cfg->divs.dvs = 1;
116 armclk = hclk;
117 } else
118 cfg->divs.dvs = 0;
119
120 cfg->freq.armclk = armclk;
121
122 /* store the result, and then return */
123
124 cfg->divs.h_divisor = hdiv;
125 cfg->divs.p_divisor = pdiv;
126
127 return 0;
128
129 invalid:
130 return -EINVAL;
131}
132
133#define CAMDIVN_HCLK_HALF (S3C2440_CAMDIVN_HCLK3_HALF | \
134 S3C2440_CAMDIVN_HCLK4_HALF)
135
136/**
137 * s3c2440_cpufreq_setdivs - set the cpu frequency divider settings
138 * @cfg: The cpu frequency settings.
139 *
140 * Set the divisors from the settings in @cfg, which where generated
141 * during the calculation phase by s3c2440_cpufreq_calcdivs().
142 */
143static void s3c2440_cpufreq_setdivs(struct s3c_cpufreq_config *cfg)
144{
145 unsigned long clkdiv, camdiv;
146
147 s3c_freq_dbg("%s: divsiors: h=%d, p=%d\n", __func__,
148 cfg->divs.h_divisor, cfg->divs.p_divisor);
149
150 clkdiv = __raw_readl(S3C2410_CLKDIVN);
151 camdiv = __raw_readl(S3C2440_CAMDIVN);
152
153 clkdiv &= ~(S3C2440_CLKDIVN_HDIVN_MASK | S3C2440_CLKDIVN_PDIVN);
154 camdiv &= ~CAMDIVN_HCLK_HALF;
155
156 switch (cfg->divs.h_divisor) {
157 case 1:
158 clkdiv |= S3C2440_CLKDIVN_HDIVN_1;
159 break;
160
161 case 2:
162 clkdiv |= S3C2440_CLKDIVN_HDIVN_2;
163 break;
164
165 case 6:
166 camdiv |= S3C2440_CAMDIVN_HCLK3_HALF;
167 case 3:
168 clkdiv |= S3C2440_CLKDIVN_HDIVN_3_6;
169 break;
170
171 case 8:
172 camdiv |= S3C2440_CAMDIVN_HCLK4_HALF;
173 case 4:
174 clkdiv |= S3C2440_CLKDIVN_HDIVN_4_8;
175 break;
176
177 default:
178 BUG(); /* we don't expect to get here. */
179 }
180
181 if (cfg->divs.p_divisor != cfg->divs.h_divisor)
182 clkdiv |= S3C2440_CLKDIVN_PDIVN;
183
184 /* todo - set pclk. */
185
186 /* Write the divisors first with hclk intentionally halved so that
187 * when we write clkdiv we will under-frequency instead of over. We
188 * then make a short delay and remove the hclk halving if necessary.
189 */
190
191 __raw_writel(camdiv | CAMDIVN_HCLK_HALF, S3C2440_CAMDIVN);
192 __raw_writel(clkdiv, S3C2410_CLKDIVN);
193
194 ndelay(20);
195 __raw_writel(camdiv, S3C2440_CAMDIVN);
196
197 clk_set_parent(armclk, cfg->divs.dvs ? hclk : fclk);
198}
199
200static int run_freq_for(unsigned long max_hclk, unsigned long fclk,
201 int *divs,
202 struct cpufreq_frequency_table *table,
203 size_t table_size)
204{
205 unsigned long freq;
206 int index = 0;
207 int div;
208
209 for (div = *divs; div > 0; div = *divs++) {
210 freq = fclk / div;
211
212 if (freq > max_hclk && div != 1)
213 continue;
214
215 freq /= 1000; /* table is in kHz */
216 index = s3c_cpufreq_addfreq(table, index, table_size, freq);
217 if (index < 0)
218 break;
219 }
220
221 return index;
222}
223
224static int hclk_divs[] = { 1, 2, 3, 4, 6, 8, -1 };
225
226static int s3c2440_cpufreq_calctable(struct s3c_cpufreq_config *cfg,
227 struct cpufreq_frequency_table *table,
228 size_t table_size)
229{
230 int ret;
231
232 WARN_ON(cfg->info == NULL);
233 WARN_ON(cfg->board == NULL);
234
235 ret = run_freq_for(cfg->info->max.hclk,
236 cfg->info->max.fclk,
237 hclk_divs,
238 table, table_size);
239
240 s3c_freq_dbg("%s: returning %d\n", __func__, ret);
241
242 return ret;
243}
244
245struct s3c_cpufreq_info s3c2440_cpufreq_info = {
246 .max = {
247 .fclk = 400000000,
248 .hclk = 133333333,
249 .pclk = 66666666,
250 },
251
252 .locktime_m = 300,
253 .locktime_u = 300,
254 .locktime_bits = 16,
255
256 .name = "s3c244x",
257 .calc_iotiming = s3c2410_iotiming_calc,
258 .set_iotiming = s3c2410_iotiming_set,
259 .get_iotiming = s3c2410_iotiming_get,
260 .set_fvco = s3c2410_set_fvco,
261
262 .set_refresh = s3c2410_cpufreq_setrefresh,
263 .set_divs = s3c2440_cpufreq_setdivs,
264 .calc_divs = s3c2440_cpufreq_calcdivs,
265 .calc_freqtable = s3c2440_cpufreq_calctable,
266
267 .resume_clocks = s3c244x_setup_clocks,
268
269 .debug_io_show = s3c_cpufreq_debugfs_call(s3c2410_iotiming_debugfs),
270};
271
272static int s3c2440_cpufreq_add(struct device *dev,
273 struct subsys_interface *sif)
274{
275 xtal = s3c_cpufreq_clk_get(NULL, "xtal");
276 hclk = s3c_cpufreq_clk_get(NULL, "hclk");
277 fclk = s3c_cpufreq_clk_get(NULL, "fclk");
278 armclk = s3c_cpufreq_clk_get(NULL, "armclk");
279
280 if (IS_ERR(xtal) || IS_ERR(hclk) || IS_ERR(fclk) || IS_ERR(armclk)) {
281 printk(KERN_ERR "%s: failed to get clocks\n", __func__);
282 return -ENOENT;
283 }
284
285 return s3c_cpufreq_register(&s3c2440_cpufreq_info);
286}
287
288static struct subsys_interface s3c2440_cpufreq_interface = {
289 .name = "s3c2440_cpufreq",
290 .subsys = &s3c2440_subsys,
291 .add_dev = s3c2440_cpufreq_add,
292};
293
294static int s3c2440_cpufreq_init(void)
295{
296 return subsys_interface_register(&s3c2440_cpufreq_interface);
297}
298
299/* arch_initcall adds the clocks we need, so use subsys_initcall. */
300subsys_initcall(s3c2440_cpufreq_init);
301
302static struct subsys_interface s3c2442_cpufreq_interface = {
303 .name = "s3c2442_cpufreq",
304 .subsys = &s3c2442_subsys,
305 .add_dev = s3c2440_cpufreq_add,
306};
307
308static int s3c2442_cpufreq_init(void)
309{
310 return subsys_interface_register(&s3c2442_cpufreq_interface);
311}
312subsys_initcall(s3c2442_cpufreq_init);
diff --git a/arch/arm/mach-s3c24xx/include/mach/hardware.h b/arch/arm/mach-s3c24xx/include/mach/hardware.h
index aef5631eac58..a6cc14a092fc 100644
--- a/arch/arm/mach-s3c24xx/include/mach/hardware.h
+++ b/arch/arm/mach-s3c24xx/include/mach/hardware.h
@@ -23,12 +23,6 @@ extern int s3c2440_set_dsc(unsigned int pin, unsigned int value);
23 23
24#endif /* CONFIG_CPU_S3C2440 */ 24#endif /* CONFIG_CPU_S3C2440 */
25 25
26#ifdef CONFIG_CPU_S3C2412
27
28extern int s3c2412_gpio_set_sleepcfg(unsigned int pin, unsigned int state);
29
30#endif /* CONFIG_CPU_S3C2412 */
31
32#endif /* __ASSEMBLY__ */ 26#endif /* __ASSEMBLY__ */
33 27
34#include <asm/sizes.h> 28#include <asm/sizes.h>
diff --git a/arch/arm/mach-s3c24xx/pll-s3c2410.c b/arch/arm/mach-s3c24xx/pll-s3c2410.c
new file mode 100644
index 000000000000..dcf3420a3271
--- /dev/null
+++ b/arch/arm/mach-s3c24xx/pll-s3c2410.c
@@ -0,0 +1,96 @@
1/*
2 * Copyright (c) 2006-2007 Simtec Electronics
3 * http://armlinux.simtec.co.uk/
4 * Ben Dooks <ben@simtec.co.uk>
5 * Vincent Sanders <vince@arm.linux.org.uk>
6 *
7 * S3C2410 CPU PLL tables
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22*/
23
24#include <linux/types.h>
25#include <linux/kernel.h>
26#include <linux/module.h>
27#include <linux/device.h>
28#include <linux/list.h>
29#include <linux/clk.h>
30#include <linux/err.h>
31
32#include <plat/cpu.h>
33#include <plat/cpu-freq-core.h>
34
35static struct cpufreq_frequency_table pll_vals_12MHz[] = {
36 { .frequency = 34000000, .index = PLLVAL(82, 2, 3), },
37 { .frequency = 45000000, .index = PLLVAL(82, 1, 3), },
38 { .frequency = 51000000, .index = PLLVAL(161, 3, 3), },
39 { .frequency = 48000000, .index = PLLVAL(120, 2, 3), },
40 { .frequency = 56000000, .index = PLLVAL(142, 2, 3), },
41 { .frequency = 68000000, .index = PLLVAL(82, 2, 2), },
42 { .frequency = 79000000, .index = PLLVAL(71, 1, 2), },
43 { .frequency = 85000000, .index = PLLVAL(105, 2, 2), },
44 { .frequency = 90000000, .index = PLLVAL(112, 2, 2), },
45 { .frequency = 101000000, .index = PLLVAL(127, 2, 2), },
46 { .frequency = 113000000, .index = PLLVAL(105, 1, 2), },
47 { .frequency = 118000000, .index = PLLVAL(150, 2, 2), },
48 { .frequency = 124000000, .index = PLLVAL(116, 1, 2), },
49 { .frequency = 135000000, .index = PLLVAL(82, 2, 1), },
50 { .frequency = 147000000, .index = PLLVAL(90, 2, 1), },
51 { .frequency = 152000000, .index = PLLVAL(68, 1, 1), },
52 { .frequency = 158000000, .index = PLLVAL(71, 1, 1), },
53 { .frequency = 170000000, .index = PLLVAL(77, 1, 1), },
54 { .frequency = 180000000, .index = PLLVAL(82, 1, 1), },
55 { .frequency = 186000000, .index = PLLVAL(85, 1, 1), },
56 { .frequency = 192000000, .index = PLLVAL(88, 1, 1), },
57 { .frequency = 203000000, .index = PLLVAL(161, 3, 1), },
58
59 /* 2410A extras */
60
61 { .frequency = 210000000, .index = PLLVAL(132, 2, 1), },
62 { .frequency = 226000000, .index = PLLVAL(105, 1, 1), },
63 { .frequency = 266000000, .index = PLLVAL(125, 1, 1), },
64 { .frequency = 268000000, .index = PLLVAL(126, 1, 1), },
65 { .frequency = 270000000, .index = PLLVAL(127, 1, 1), },
66};
67
68static int s3c2410_plls_add(struct device *dev, struct subsys_interface *sif)
69{
70 return s3c_plltab_register(pll_vals_12MHz, ARRAY_SIZE(pll_vals_12MHz));
71}
72
73static struct subsys_interface s3c2410_plls_interface = {
74 .name = "s3c2410_plls",
75 .subsys = &s3c2410_subsys,
76 .add_dev = s3c2410_plls_add,
77};
78
79static int __init s3c2410_pll_init(void)
80{
81 return subsys_interface_register(&s3c2410_plls_interface);
82
83}
84arch_initcall(s3c2410_pll_init);
85
86static struct subsys_interface s3c2410a_plls_interface = {
87 .name = "s3c2410a_plls",
88 .subsys = &s3c2410a_subsys,
89 .add_dev = s3c2410_plls_add,
90};
91
92static int __init s3c2410a_pll_init(void)
93{
94 return subsys_interface_register(&s3c2410a_plls_interface);
95}
96arch_initcall(s3c2410a_pll_init);
diff --git a/arch/arm/mach-s3c24xx/pll-s3c2440-12000000.c b/arch/arm/mach-s3c24xx/pll-s3c2440-12000000.c
new file mode 100644
index 000000000000..673781758319
--- /dev/null
+++ b/arch/arm/mach-s3c24xx/pll-s3c2440-12000000.c
@@ -0,0 +1,98 @@
1/*
2 * Copyright (c) 2006-2007 Simtec Electronics
3 * http://armlinux.simtec.co.uk/
4 * Ben Dooks <ben@simtec.co.uk>
5 * Vincent Sanders <vince@arm.linux.org.uk>
6 *
7 * S3C2440/S3C2442 CPU PLL tables (12MHz Crystal)
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12*/
13
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[] __initdata = {
24 { .frequency = 75000000, .index = PLLVAL(0x75, 3, 3), }, /* FVco 600.000000 */
25 { .frequency = 80000000, .index = PLLVAL(0x98, 4, 3), }, /* FVco 640.000000 */
26 { .frequency = 90000000, .index = PLLVAL(0x70, 2, 3), }, /* FVco 720.000000 */
27 { .frequency = 100000000, .index = PLLVAL(0x5c, 1, 3), }, /* FVco 800.000000 */
28 { .frequency = 110000000, .index = PLLVAL(0x66, 1, 3), }, /* FVco 880.000000 */
29 { .frequency = 120000000, .index = PLLVAL(0x70, 1, 3), }, /* FVco 960.000000 */
30 { .frequency = 150000000, .index = PLLVAL(0x75, 3, 2), }, /* FVco 600.000000 */
31 { .frequency = 160000000, .index = PLLVAL(0x98, 4, 2), }, /* FVco 640.000000 */
32 { .frequency = 170000000, .index = PLLVAL(0x4d, 1, 2), }, /* FVco 680.000000 */
33 { .frequency = 180000000, .index = PLLVAL(0x70, 2, 2), }, /* FVco 720.000000 */
34 { .frequency = 190000000, .index = PLLVAL(0x57, 1, 2), }, /* FVco 760.000000 */
35 { .frequency = 200000000, .index = PLLVAL(0x5c, 1, 2), }, /* FVco 800.000000 */
36 { .frequency = 210000000, .index = PLLVAL(0x84, 2, 2), }, /* FVco 840.000000 */
37 { .frequency = 220000000, .index = PLLVAL(0x66, 1, 2), }, /* FVco 880.000000 */
38 { .frequency = 230000000, .index = PLLVAL(0x6b, 1, 2), }, /* FVco 920.000000 */
39 { .frequency = 240000000, .index = PLLVAL(0x70, 1, 2), }, /* FVco 960.000000 */
40 { .frequency = 300000000, .index = PLLVAL(0x75, 3, 1), }, /* FVco 600.000000 */
41 { .frequency = 310000000, .index = PLLVAL(0x93, 4, 1), }, /* FVco 620.000000 */
42 { .frequency = 320000000, .index = PLLVAL(0x98, 4, 1), }, /* FVco 640.000000 */
43 { .frequency = 330000000, .index = PLLVAL(0x66, 2, 1), }, /* FVco 660.000000 */
44 { .frequency = 340000000, .index = PLLVAL(0x4d, 1, 1), }, /* FVco 680.000000 */
45 { .frequency = 350000000, .index = PLLVAL(0xa7, 4, 1), }, /* FVco 700.000000 */
46 { .frequency = 360000000, .index = PLLVAL(0x70, 2, 1), }, /* FVco 720.000000 */
47 { .frequency = 370000000, .index = PLLVAL(0xb1, 4, 1), }, /* FVco 740.000000 */
48 { .frequency = 380000000, .index = PLLVAL(0x57, 1, 1), }, /* FVco 760.000000 */
49 { .frequency = 390000000, .index = PLLVAL(0x7a, 2, 1), }, /* FVco 780.000000 */
50 { .frequency = 400000000, .index = PLLVAL(0x5c, 1, 1), }, /* FVco 800.000000 */
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);
diff --git a/arch/arm/mach-s3c24xx/pll-s3c2440-16934400.c b/arch/arm/mach-s3c24xx/pll-s3c2440-16934400.c
new file mode 100644
index 000000000000..debfa106289b
--- /dev/null
+++ b/arch/arm/mach-s3c24xx/pll-s3c2440-16934400.c
@@ -0,0 +1,125 @@
1/*
2 * Copyright (c) 2006-2008 Simtec Electronics
3 * http://armlinux.simtec.co.uk/
4 * Ben Dooks <ben@simtec.co.uk>
5 * Vincent Sanders <vince@arm.linux.org.uk>
6 *
7 * S3C2440/S3C2442 CPU PLL tables (16.93444MHz Crystal)
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12*/
13
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_169344[] __initdata = {
24 { .frequency = 78019200, .index = PLLVAL(121, 5, 3), }, /* FVco 624.153600 */
25 { .frequency = 84067200, .index = PLLVAL(131, 5, 3), }, /* FVco 672.537600 */
26 { .frequency = 90115200, .index = PLLVAL(141, 5, 3), }, /* FVco 720.921600 */
27 { .frequency = 96163200, .index = PLLVAL(151, 5, 3), }, /* FVco 769.305600 */
28 { .frequency = 102135600, .index = PLLVAL(185, 6, 3), }, /* FVco 817.084800 */
29 { .frequency = 108259200, .index = PLLVAL(171, 5, 3), }, /* FVco 866.073600 */
30 { .frequency = 114307200, .index = PLLVAL(127, 3, 3), }, /* FVco 914.457600 */
31 { .frequency = 120234240, .index = PLLVAL(134, 3, 3), }, /* FVco 961.873920 */
32 { .frequency = 126161280, .index = PLLVAL(141, 3, 3), }, /* FVco 1009.290240 */
33 { .frequency = 132088320, .index = PLLVAL(148, 3, 3), }, /* FVco 1056.706560 */
34 { .frequency = 138015360, .index = PLLVAL(155, 3, 3), }, /* FVco 1104.122880 */
35 { .frequency = 144789120, .index = PLLVAL(163, 3, 3), }, /* FVco 1158.312960 */
36 { .frequency = 150100363, .index = PLLVAL(187, 9, 2), }, /* FVco 600.401454 */
37 { .frequency = 156038400, .index = PLLVAL(121, 5, 2), }, /* FVco 624.153600 */
38 { .frequency = 162086400, .index = PLLVAL(126, 5, 2), }, /* FVco 648.345600 */
39 { .frequency = 168134400, .index = PLLVAL(131, 5, 2), }, /* FVco 672.537600 */
40 { .frequency = 174048000, .index = PLLVAL(177, 7, 2), }, /* FVco 696.192000 */
41 { .frequency = 180230400, .index = PLLVAL(141, 5, 2), }, /* FVco 720.921600 */
42 { .frequency = 186278400, .index = PLLVAL(124, 4, 2), }, /* FVco 745.113600 */
43 { .frequency = 192326400, .index = PLLVAL(151, 5, 2), }, /* FVco 769.305600 */
44 { .frequency = 198132480, .index = PLLVAL(109, 3, 2), }, /* FVco 792.529920 */
45 { .frequency = 204271200, .index = PLLVAL(185, 6, 2), }, /* FVco 817.084800 */
46 { .frequency = 210268800, .index = PLLVAL(141, 4, 2), }, /* FVco 841.075200 */
47 { .frequency = 216518400, .index = PLLVAL(171, 5, 2), }, /* FVco 866.073600 */
48 { .frequency = 222264000, .index = PLLVAL(97, 2, 2), }, /* FVco 889.056000 */
49 { .frequency = 228614400, .index = PLLVAL(127, 3, 2), }, /* FVco 914.457600 */
50 { .frequency = 234259200, .index = PLLVAL(158, 4, 2), }, /* FVco 937.036800 */
51 { .frequency = 240468480, .index = PLLVAL(134, 3, 2), }, /* FVco 961.873920 */
52 { .frequency = 246960000, .index = PLLVAL(167, 4, 2), }, /* FVco 987.840000 */
53 { .frequency = 252322560, .index = PLLVAL(141, 3, 2), }, /* FVco 1009.290240 */
54 { .frequency = 258249600, .index = PLLVAL(114, 2, 2), }, /* FVco 1032.998400 */
55 { .frequency = 264176640, .index = PLLVAL(148, 3, 2), }, /* FVco 1056.706560 */
56 { .frequency = 270950400, .index = PLLVAL(120, 2, 2), }, /* FVco 1083.801600 */
57 { .frequency = 276030720, .index = PLLVAL(155, 3, 2), }, /* FVco 1104.122880 */
58 { .frequency = 282240000, .index = PLLVAL(92, 1, 2), }, /* FVco 1128.960000 */
59 { .frequency = 289578240, .index = PLLVAL(163, 3, 2), }, /* FVco 1158.312960 */
60 { .frequency = 294235200, .index = PLLVAL(131, 2, 2), }, /* FVco 1176.940800 */
61 { .frequency = 300200727, .index = PLLVAL(187, 9, 1), }, /* FVco 600.401454 */
62 { .frequency = 306358690, .index = PLLVAL(191, 9, 1), }, /* FVco 612.717380 */
63 { .frequency = 312076800, .index = PLLVAL(121, 5, 1), }, /* FVco 624.153600 */
64 { .frequency = 318366720, .index = PLLVAL(86, 3, 1), }, /* FVco 636.733440 */
65 { .frequency = 324172800, .index = PLLVAL(126, 5, 1), }, /* FVco 648.345600 */
66 { .frequency = 330220800, .index = PLLVAL(109, 4, 1), }, /* FVco 660.441600 */
67 { .frequency = 336268800, .index = PLLVAL(131, 5, 1), }, /* FVco 672.537600 */
68 { .frequency = 342074880, .index = PLLVAL(93, 3, 1), }, /* FVco 684.149760 */
69 { .frequency = 348096000, .index = PLLVAL(177, 7, 1), }, /* FVco 696.192000 */
70 { .frequency = 355622400, .index = PLLVAL(118, 4, 1), }, /* FVco 711.244800 */
71 { .frequency = 360460800, .index = PLLVAL(141, 5, 1), }, /* FVco 720.921600 */
72 { .frequency = 366206400, .index = PLLVAL(165, 6, 1), }, /* FVco 732.412800 */
73 { .frequency = 372556800, .index = PLLVAL(124, 4, 1), }, /* FVco 745.113600 */
74 { .frequency = 378201600, .index = PLLVAL(126, 4, 1), }, /* FVco 756.403200 */
75 { .frequency = 384652800, .index = PLLVAL(151, 5, 1), }, /* FVco 769.305600 */
76 { .frequency = 391608000, .index = PLLVAL(177, 6, 1), }, /* FVco 783.216000 */
77 { .frequency = 396264960, .index = PLLVAL(109, 3, 1), }, /* FVco 792.529920 */
78 { .frequency = 402192000, .index = PLLVAL(87, 2, 1), }, /* FVco 804.384000 */
79};
80
81static int s3c2440_plls169344_add(struct device *dev,
82 struct subsys_interface *sif)
83{
84 struct clk *xtal_clk;
85 unsigned long xtal;
86
87 xtal_clk = clk_get(NULL, "xtal");
88 if (IS_ERR(xtal_clk))
89 return PTR_ERR(xtal_clk);
90
91 xtal = clk_get_rate(xtal_clk);
92 clk_put(xtal_clk);
93
94 if (xtal == 169344000) {
95 printk(KERN_INFO "Using PLL table for 16.9344MHz crystal\n");
96 return s3c_plltab_register(s3c2440_plls_169344,
97 ARRAY_SIZE(s3c2440_plls_169344));
98 }
99
100 return 0;
101}
102
103static struct subsys_interface s3c2440_plls169344_interface = {
104 .name = "s3c2440_plls169344",
105 .subsys = &s3c2440_subsys,
106 .add_dev = s3c2440_plls169344_add,
107};
108
109static int __init s3c2440_pll_16934400(void)
110{
111 return subsys_interface_register(&s3c2440_plls169344_interface);
112}
113arch_initcall(s3c2440_pll_16934400);
114
115static struct subsys_interface s3c2442_plls169344_interface = {
116 .name = "s3c2442_plls169344",
117 .subsys = &s3c2442_subsys,
118 .add_dev = s3c2440_plls169344_add,
119};
120
121static int __init s3c2442_pll_16934400(void)
122{
123 return subsys_interface_register(&s3c2442_plls169344_interface);
124}
125arch_initcall(s3c2442_pll_16934400);