1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
|
/*
* Copyright (c) 2013 Samsung Electronics Co., Ltd.
* Author: Tarek Dakhran <t.dakhran@samsung.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Common Clock Framework support for Exynos5410 SoC.
*/
#include <dt-bindings/clock/exynos5410.h>
#include <linux/clk-provider.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/clk.h>
#include "clk.h"
#define APLL_LOCK 0x0
#define APLL_CON0 0x100
#define CPLL_LOCK 0x10020
#define CPLL_CON0 0x10120
#define EPLL_LOCK 0x10040
#define EPLL_CON0 0x10130
#define MPLL_LOCK 0x4000
#define MPLL_CON0 0x4100
#define BPLL_LOCK 0x20010
#define BPLL_CON0 0x20110
#define KPLL_LOCK 0x28000
#define KPLL_CON0 0x28100
#define SRC_CPU 0x200
#define DIV_CPU0 0x500
#define SRC_CPERI1 0x4204
#define GATE_IP_G2D 0x8800
#define DIV_TOP0 0x10510
#define DIV_TOP1 0x10514
#define DIV_FSYS0 0x10548
#define DIV_FSYS1 0x1054c
#define DIV_FSYS2 0x10550
#define DIV_PERIC0 0x10558
#define DIV_PERIC3 0x10564
#define SRC_TOP0 0x10210
#define SRC_TOP1 0x10214
#define SRC_TOP2 0x10218
#define SRC_FSYS 0x10244
#define SRC_PERIC0 0x10250
#define SRC_MASK_FSYS 0x10340
#define SRC_MASK_PERIC0 0x10350
#define GATE_BUS_FSYS0 0x10740
#define GATE_TOP_SCLK_FSYS 0x10840
#define GATE_TOP_SCLK_PERIC 0x10850
#define GATE_IP_FSYS 0x10944
#define GATE_IP_PERIC 0x10950
#define GATE_IP_PERIS 0x10960
#define SRC_CDREX 0x20200
#define SRC_KFC 0x28200
#define DIV_KFC0 0x28500
/* list of PLLs */
enum exynos5410_plls {
apll, cpll, epll, mpll,
bpll, kpll,
nr_plls /* number of PLLs */
};
/* list of all parent clocks */
PNAME(apll_p) = { "fin_pll", "fout_apll", };
PNAME(bpll_p) = { "fin_pll", "fout_bpll", };
PNAME(cpll_p) = { "fin_pll", "fout_cpll" };
PNAME(epll_p) = { "fin_pll", "fout_epll" };
PNAME(mpll_p) = { "fin_pll", "fout_mpll", };
PNAME(kpll_p) = { "fin_pll", "fout_kpll", };
PNAME(mout_cpu_p) = { "mout_apll", "sclk_mpll", };
PNAME(mout_kfc_p) = { "mout_kpll", "sclk_mpll", };
PNAME(mpll_user_p) = { "fin_pll", "sclk_mpll", };
PNAME(bpll_user_p) = { "fin_pll", "sclk_bpll", };
PNAME(mpll_bpll_p) = { "sclk_mpll_muxed", "sclk_bpll_muxed", };
PNAME(sclk_mpll_bpll_p) = { "sclk_mpll_bpll", "fin_pll", };
PNAME(group2_p) = { "fin_pll", "fin_pll", "none", "none",
"none", "none", "sclk_mpll_bpll",
"none", "none", "sclk_cpll" };
static const struct samsung_mux_clock exynos5410_mux_clks[] __initconst = {
MUX(0, "mout_apll", apll_p, SRC_CPU, 0, 1),
MUX(0, "mout_cpu", mout_cpu_p, SRC_CPU, 16, 1),
MUX(0, "mout_kpll", kpll_p, SRC_KFC, 0, 1),
MUX(0, "mout_kfc", mout_kfc_p, SRC_KFC, 16, 1),
MUX(0, "sclk_mpll", mpll_p, SRC_CPERI1, 8, 1),
MUX(0, "sclk_mpll_muxed", mpll_user_p, SRC_TOP2, 20, 1),
MUX(0, "sclk_bpll", bpll_p, SRC_CDREX, 0, 1),
MUX(0, "sclk_bpll_muxed", bpll_user_p, SRC_TOP2, 24, 1),
MUX(0, "sclk_epll", epll_p, SRC_TOP2, 12, 1),
MUX(0, "sclk_cpll", cpll_p, SRC_TOP2, 8, 1),
MUX(0, "sclk_mpll_bpll", mpll_bpll_p, SRC_TOP1, 20, 1),
MUX(0, "mout_mmc0", group2_p, SRC_FSYS, 0, 4),
MUX(0, "mout_mmc1", group2_p, SRC_FSYS, 4, 4),
MUX(0, "mout_mmc2", group2_p, SRC_FSYS, 8, 4),
MUX(0, "mout_usbd300", sclk_mpll_bpll_p, SRC_FSYS, 28, 1),
MUX(0, "mout_usbd301", sclk_mpll_bpll_p, SRC_FSYS, 29, 1),
MUX(0, "mout_uart0", group2_p, SRC_PERIC0, 0, 4),
MUX(0, "mout_uart1", group2_p, SRC_PERIC0, 4, 4),
MUX(0, "mout_uart2", group2_p, SRC_PERIC0, 8, 4),
MUX(0, "mout_uart3", group2_p, SRC_PERIC0, 12, 4),
MUX(0, "mout_pwm", group2_p, SRC_PERIC0, 24, 4),
MUX(0, "mout_aclk200", mpll_bpll_p, SRC_TOP0, 12, 1),
MUX(0, "mout_aclk400", mpll_bpll_p, SRC_TOP0, 20, 1),
};
static const struct samsung_div_clock exynos5410_div_clks[] __initconst = {
DIV(0, "div_arm", "mout_cpu", DIV_CPU0, 0, 3),
DIV(0, "div_arm2", "div_arm", DIV_CPU0, 28, 3),
DIV(0, "div_acp", "div_arm2", DIV_CPU0, 8, 3),
DIV(0, "div_cpud", "div_arm2", DIV_CPU0, 4, 3),
DIV(0, "div_atb", "div_arm2", DIV_CPU0, 16, 3),
DIV(0, "pclk_dbg", "div_arm2", DIV_CPU0, 20, 3),
DIV(0, "div_kfc", "mout_kfc", DIV_KFC0, 0, 3),
DIV(0, "div_aclk", "div_kfc", DIV_KFC0, 4, 3),
DIV(0, "div_pclk", "div_kfc", DIV_KFC0, 20, 3),
DIV(0, "aclk66_pre", "sclk_mpll_muxed", DIV_TOP1, 24, 3),
DIV(0, "aclk66", "aclk66_pre", DIV_TOP0, 0, 3),
DIV(0, "dout_usbphy300", "mout_usbd300", DIV_FSYS0, 16, 4),
DIV(0, "dout_usbphy301", "mout_usbd301", DIV_FSYS0, 20, 4),
DIV(0, "dout_usbd300", "mout_usbd300", DIV_FSYS0, 24, 4),
DIV(0, "dout_usbd301", "mout_usbd301", DIV_FSYS0, 28, 4),
DIV(0, "div_mmc0", "mout_mmc0", DIV_FSYS1, 0, 4),
DIV(0, "div_mmc1", "mout_mmc1", DIV_FSYS1, 16, 4),
DIV(0, "div_mmc2", "mout_mmc2", DIV_FSYS2, 0, 4),
DIV_F(0, "div_mmc_pre0", "div_mmc0",
DIV_FSYS1, 8, 8, CLK_SET_RATE_PARENT, 0),
DIV_F(0, "div_mmc_pre1", "div_mmc1",
DIV_FSYS1, 24, 8, CLK_SET_RATE_PARENT, 0),
DIV_F(0, "div_mmc_pre2", "div_mmc2",
DIV_FSYS2, 8, 8, CLK_SET_RATE_PARENT, 0),
DIV(0, "div_uart0", "mout_uart0", DIV_PERIC0, 0, 4),
DIV(0, "div_uart1", "mout_uart1", DIV_PERIC0, 4, 4),
DIV(0, "div_uart2", "mout_uart2", DIV_PERIC0, 8, 4),
DIV(0, "div_uart3", "mout_uart3", DIV_PERIC0, 12, 4),
DIV(0, "dout_pwm", "mout_pwm", DIV_PERIC3, 0, 4),
DIV(0, "aclk200", "mout_aclk200", DIV_TOP0, 12, 3),
DIV(0, "aclk266", "mpll_user_p", DIV_TOP0, 16, 3),
DIV(0, "aclk400", "mout_aclk400", DIV_TOP0, 24, 3),
};
static const struct samsung_gate_clock exynos5410_gate_clks[] __initconst = {
GATE(CLK_SSS, "sss", "aclk266", GATE_IP_G2D, 2, 0, 0),
GATE(CLK_MCT, "mct", "aclk66", GATE_IP_PERIS, 18, 0, 0),
GATE(CLK_WDT, "wdt", "aclk66", GATE_IP_PERIS, 19, 0, 0),
GATE(CLK_RTC, "rtc", "aclk66", GATE_IP_PERIS, 20, 0, 0),
GATE(CLK_TMU, "tmu", "aclk66", GATE_IP_PERIS, 21, 0, 0),
GATE(CLK_SCLK_MMC0, "sclk_mmc0", "div_mmc_pre0",
SRC_MASK_FSYS, 0, CLK_SET_RATE_PARENT, 0),
GATE(CLK_SCLK_MMC1, "sclk_mmc1", "div_mmc_pre1",
SRC_MASK_FSYS, 4, CLK_SET_RATE_PARENT, 0),
GATE(CLK_SCLK_MMC2, "sclk_mmc2", "div_mmc_pre2",
SRC_MASK_FSYS, 8, CLK_SET_RATE_PARENT, 0),
GATE(CLK_MMC0, "sdmmc0", "aclk200", GATE_BUS_FSYS0, 12, 0, 0),
GATE(CLK_MMC1, "sdmmc1", "aclk200", GATE_BUS_FSYS0, 13, 0, 0),
GATE(CLK_MMC2, "sdmmc2", "aclk200", GATE_BUS_FSYS0, 14, 0, 0),
GATE(CLK_PDMA1, "pdma1", "aclk200", GATE_BUS_FSYS0, 2, 0, 0),
GATE(CLK_PDMA0, "pdma0", "aclk200", GATE_BUS_FSYS0, 1, 0, 0),
GATE(CLK_SCLK_USBPHY301, "sclk_usbphy301", "dout_usbphy301",
GATE_TOP_SCLK_FSYS, 7, CLK_SET_RATE_PARENT, 0),
GATE(CLK_SCLK_USBPHY300, "sclk_usbphy300", "dout_usbphy300",
GATE_TOP_SCLK_FSYS, 8, CLK_SET_RATE_PARENT, 0),
GATE(CLK_SCLK_USBD300, "sclk_usbd300", "dout_usbd300",
GATE_TOP_SCLK_FSYS, 9, CLK_SET_RATE_PARENT, 0),
GATE(CLK_SCLK_USBD301, "sclk_usbd301", "dout_usbd301",
GATE_TOP_SCLK_FSYS, 10, CLK_SET_RATE_PARENT, 0),
GATE(CLK_SCLK_PWM, "sclk_pwm", "dout_pwm",
GATE_TOP_SCLK_PERIC, 11, CLK_SET_RATE_PARENT, 0),
GATE(CLK_UART0, "uart0", "aclk66", GATE_IP_PERIC, 0, 0, 0),
GATE(CLK_UART1, "uart1", "aclk66", GATE_IP_PERIC, 1, 0, 0),
GATE(CLK_UART2, "uart2", "aclk66", GATE_IP_PERIC, 2, 0, 0),
GATE(CLK_UART3, "uart3", "aclk66", GATE_IP_PERIC, 3, 0, 0),
GATE(CLK_I2C0, "i2c0", "aclk66", GATE_IP_PERIC, 6, 0, 0),
GATE(CLK_I2C1, "i2c1", "aclk66", GATE_IP_PERIC, 7, 0, 0),
GATE(CLK_I2C2, "i2c2", "aclk66", GATE_IP_PERIC, 8, 0, 0),
GATE(CLK_I2C3, "i2c3", "aclk66", GATE_IP_PERIC, 9, 0, 0),
GATE(CLK_USI0, "usi0", "aclk66", GATE_IP_PERIC, 10, 0, 0),
GATE(CLK_USI1, "usi1", "aclk66", GATE_IP_PERIC, 11, 0, 0),
GATE(CLK_USI2, "usi2", "aclk66", GATE_IP_PERIC, 12, 0, 0),
GATE(CLK_USI3, "usi3", "aclk66", GATE_IP_PERIC, 13, 0, 0),
GATE(CLK_PWM, "pwm", "aclk66", GATE_IP_PERIC, 24, 0, 0),
GATE(CLK_SCLK_UART0, "sclk_uart0", "div_uart0",
SRC_MASK_PERIC0, 0, CLK_SET_RATE_PARENT, 0),
GATE(CLK_SCLK_UART1, "sclk_uart1", "div_uart1",
SRC_MASK_PERIC0, 4, CLK_SET_RATE_PARENT, 0),
GATE(CLK_SCLK_UART2, "sclk_uart2", "div_uart2",
SRC_MASK_PERIC0, 8, CLK_SET_RATE_PARENT, 0),
GATE(CLK_SCLK_UART3, "sclk_uart3", "div_uart3",
SRC_MASK_PERIC0, 12, CLK_SET_RATE_PARENT, 0),
GATE(CLK_USBH20, "usbh20", "aclk200_fsys", GATE_IP_FSYS, 18, 0, 0),
GATE(CLK_USBD300, "usbd300", "aclk200_fsys", GATE_IP_FSYS, 19, 0, 0),
GATE(CLK_USBD301, "usbd301", "aclk200_fsys", GATE_IP_FSYS, 20, 0, 0),
};
static const struct samsung_pll_rate_table exynos5410_pll2550x_24mhz_tbl[] __initconst = {
PLL_36XX_RATE(400000000U, 200, 3, 2, 0),
PLL_36XX_RATE(333000000U, 111, 2, 2, 0),
PLL_36XX_RATE(300000000U, 100, 2, 2, 0),
PLL_36XX_RATE(266000000U, 266, 3, 3, 0),
PLL_36XX_RATE(200000000U, 200, 3, 3, 0),
PLL_36XX_RATE(192000000U, 192, 3, 3, 0),
PLL_36XX_RATE(166000000U, 166, 3, 3, 0),
PLL_36XX_RATE(133000000U, 266, 3, 4, 0),
PLL_36XX_RATE(100000000U, 200, 3, 4, 0),
PLL_36XX_RATE(66000000U, 176, 2, 5, 0),
};
static struct samsung_pll_clock exynos5410_plls[nr_plls] __initdata = {
[apll] = PLL(pll_35xx, CLK_FOUT_APLL, "fout_apll", "fin_pll", APLL_LOCK,
APLL_CON0, NULL),
[cpll] = PLL(pll_35xx, CLK_FOUT_CPLL, "fout_cpll", "fin_pll", CPLL_LOCK,
CPLL_CON0, NULL),
[epll] = PLL(pll_2650x, CLK_FOUT_EPLL, "fout_epll", "fin_pll", EPLL_LOCK,
EPLL_CON0, NULL),
[mpll] = PLL(pll_35xx, CLK_FOUT_MPLL, "fout_mpll", "fin_pll", MPLL_LOCK,
MPLL_CON0, NULL),
[bpll] = PLL(pll_35xx, CLK_FOUT_BPLL, "fout_bpll", "fin_pll", BPLL_LOCK,
BPLL_CON0, NULL),
[kpll] = PLL(pll_35xx, CLK_FOUT_KPLL, "fout_kpll", "fin_pll", KPLL_LOCK,
KPLL_CON0, NULL),
};
static const struct samsung_cmu_info cmu __initconst = {
.pll_clks = exynos5410_plls,
.nr_pll_clks = ARRAY_SIZE(exynos5410_plls),
.mux_clks = exynos5410_mux_clks,
.nr_mux_clks = ARRAY_SIZE(exynos5410_mux_clks),
.div_clks = exynos5410_div_clks,
.nr_div_clks = ARRAY_SIZE(exynos5410_div_clks),
.gate_clks = exynos5410_gate_clks,
.nr_gate_clks = ARRAY_SIZE(exynos5410_gate_clks),
.nr_clk_ids = CLK_NR_CLKS,
};
/* register exynos5410 clocks */
static void __init exynos5410_clk_init(struct device_node *np)
{
struct clk *xxti = of_clk_get(np, 0);
if (!IS_ERR(xxti) && clk_get_rate(xxti) == 24 * MHZ)
exynos5410_plls[epll].rate_table = exynos5410_pll2550x_24mhz_tbl;
samsung_cmu_register_one(np, &cmu);
pr_debug("Exynos5410: clock setup completed.\n");
}
CLK_OF_DECLARE(exynos5410_clk, "samsung,exynos5410-clock", exynos5410_clk_init);
|
