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12#include <dt-bindings/clock/exynos5410.h>
13
14#include <linux/clk-provider.h>
15#include <linux/of.h>
16#include <linux/of_address.h>
17#include <linux/clk.h>
18
19#include "clk.h"
20
21#define APLL_LOCK 0x0
22#define APLL_CON0 0x100
23#define CPLL_LOCK 0x10020
24#define CPLL_CON0 0x10120
25#define EPLL_LOCK 0x10040
26#define EPLL_CON0 0x10130
27#define MPLL_LOCK 0x4000
28#define MPLL_CON0 0x4100
29#define BPLL_LOCK 0x20010
30#define BPLL_CON0 0x20110
31#define KPLL_LOCK 0x28000
32#define KPLL_CON0 0x28100
33
34#define SRC_CPU 0x200
35#define DIV_CPU0 0x500
36#define SRC_CPERI1 0x4204
37#define GATE_IP_G2D 0x8800
38#define DIV_TOP0 0x10510
39#define DIV_TOP1 0x10514
40#define DIV_FSYS0 0x10548
41#define DIV_FSYS1 0x1054c
42#define DIV_FSYS2 0x10550
43#define DIV_PERIC0 0x10558
44#define DIV_PERIC3 0x10564
45#define SRC_TOP0 0x10210
46#define SRC_TOP1 0x10214
47#define SRC_TOP2 0x10218
48#define SRC_FSYS 0x10244
49#define SRC_PERIC0 0x10250
50#define SRC_MASK_FSYS 0x10340
51#define SRC_MASK_PERIC0 0x10350
52#define GATE_BUS_FSYS0 0x10740
53#define GATE_TOP_SCLK_FSYS 0x10840
54#define GATE_TOP_SCLK_PERIC 0x10850
55#define GATE_IP_FSYS 0x10944
56#define GATE_IP_PERIC 0x10950
57#define GATE_IP_PERIS 0x10960
58#define SRC_CDREX 0x20200
59#define SRC_KFC 0x28200
60#define DIV_KFC0 0x28500
61
62
63enum exynos5410_plls {
64 apll, cpll, epll, mpll,
65 bpll, kpll,
66 nr_plls
67};
68
69
70PNAME(apll_p) = { "fin_pll", "fout_apll", };
71PNAME(bpll_p) = { "fin_pll", "fout_bpll", };
72PNAME(cpll_p) = { "fin_pll", "fout_cpll" };
73PNAME(epll_p) = { "fin_pll", "fout_epll" };
74PNAME(mpll_p) = { "fin_pll", "fout_mpll", };
75PNAME(kpll_p) = { "fin_pll", "fout_kpll", };
76
77PNAME(mout_cpu_p) = { "mout_apll", "sclk_mpll", };
78PNAME(mout_kfc_p) = { "mout_kpll", "sclk_mpll", };
79
80PNAME(mpll_user_p) = { "fin_pll", "sclk_mpll", };
81PNAME(bpll_user_p) = { "fin_pll", "sclk_bpll", };
82PNAME(mpll_bpll_p) = { "sclk_mpll_muxed", "sclk_bpll_muxed", };
83PNAME(sclk_mpll_bpll_p) = { "sclk_mpll_bpll", "fin_pll", };
84
85PNAME(group2_p) = { "fin_pll", "fin_pll", "none", "none",
86 "none", "none", "sclk_mpll_bpll",
87 "none", "none", "sclk_cpll" };
88
89static const struct samsung_mux_clock exynos5410_mux_clks[] __initconst = {
90 MUX(0, "mout_apll", apll_p, SRC_CPU, 0, 1),
91 MUX(0, "mout_cpu", mout_cpu_p, SRC_CPU, 16, 1),
92
93 MUX(0, "mout_kpll", kpll_p, SRC_KFC, 0, 1),
94 MUX(0, "mout_kfc", mout_kfc_p, SRC_KFC, 16, 1),
95
96 MUX(0, "sclk_mpll", mpll_p, SRC_CPERI1, 8, 1),
97 MUX(0, "sclk_mpll_muxed", mpll_user_p, SRC_TOP2, 20, 1),
98
99 MUX(0, "sclk_bpll", bpll_p, SRC_CDREX, 0, 1),
100 MUX(0, "sclk_bpll_muxed", bpll_user_p, SRC_TOP2, 24, 1),
101
102 MUX(0, "sclk_epll", epll_p, SRC_TOP2, 12, 1),
103
104 MUX(0, "sclk_cpll", cpll_p, SRC_TOP2, 8, 1),
105
106 MUX(0, "sclk_mpll_bpll", mpll_bpll_p, SRC_TOP1, 20, 1),
107
108 MUX(0, "mout_mmc0", group2_p, SRC_FSYS, 0, 4),
109 MUX(0, "mout_mmc1", group2_p, SRC_FSYS, 4, 4),
110 MUX(0, "mout_mmc2", group2_p, SRC_FSYS, 8, 4),
111 MUX(0, "mout_usbd300", sclk_mpll_bpll_p, SRC_FSYS, 28, 1),
112 MUX(0, "mout_usbd301", sclk_mpll_bpll_p, SRC_FSYS, 29, 1),
113
114 MUX(0, "mout_uart0", group2_p, SRC_PERIC0, 0, 4),
115 MUX(0, "mout_uart1", group2_p, SRC_PERIC0, 4, 4),
116 MUX(0, "mout_uart2", group2_p, SRC_PERIC0, 8, 4),
117 MUX(0, "mout_uart3", group2_p, SRC_PERIC0, 12, 4),
118 MUX(0, "mout_pwm", group2_p, SRC_PERIC0, 24, 4),
119
120 MUX(0, "mout_aclk200", mpll_bpll_p, SRC_TOP0, 12, 1),
121 MUX(0, "mout_aclk400", mpll_bpll_p, SRC_TOP0, 20, 1),
122};
123
124static const struct samsung_div_clock exynos5410_div_clks[] __initconst = {
125 DIV(0, "div_arm", "mout_cpu", DIV_CPU0, 0, 3),
126 DIV(0, "div_arm2", "div_arm", DIV_CPU0, 28, 3),
127
128 DIV(0, "div_acp", "div_arm2", DIV_CPU0, 8, 3),
129 DIV(0, "div_cpud", "div_arm2", DIV_CPU0, 4, 3),
130 DIV(0, "div_atb", "div_arm2", DIV_CPU0, 16, 3),
131 DIV(0, "pclk_dbg", "div_arm2", DIV_CPU0, 20, 3),
132
133 DIV(0, "div_kfc", "mout_kfc", DIV_KFC0, 0, 3),
134 DIV(0, "div_aclk", "div_kfc", DIV_KFC0, 4, 3),
135 DIV(0, "div_pclk", "div_kfc", DIV_KFC0, 20, 3),
136
137 DIV(0, "aclk66_pre", "sclk_mpll_muxed", DIV_TOP1, 24, 3),
138 DIV(0, "aclk66", "aclk66_pre", DIV_TOP0, 0, 3),
139
140 DIV(0, "dout_usbphy300", "mout_usbd300", DIV_FSYS0, 16, 4),
141 DIV(0, "dout_usbphy301", "mout_usbd301", DIV_FSYS0, 20, 4),
142 DIV(0, "dout_usbd300", "mout_usbd300", DIV_FSYS0, 24, 4),
143 DIV(0, "dout_usbd301", "mout_usbd301", DIV_FSYS0, 28, 4),
144
145 DIV(0, "div_mmc0", "mout_mmc0", DIV_FSYS1, 0, 4),
146 DIV(0, "div_mmc1", "mout_mmc1", DIV_FSYS1, 16, 4),
147 DIV(0, "div_mmc2", "mout_mmc2", DIV_FSYS2, 0, 4),
148
149 DIV_F(0, "div_mmc_pre0", "div_mmc0",
150 DIV_FSYS1, 8, 8, CLK_SET_RATE_PARENT, 0),
151 DIV_F(0, "div_mmc_pre1", "div_mmc1",
152 DIV_FSYS1, 24, 8, CLK_SET_RATE_PARENT, 0),
153 DIV_F(0, "div_mmc_pre2", "div_mmc2",
154 DIV_FSYS2, 8, 8, CLK_SET_RATE_PARENT, 0),
155
156 DIV(0, "div_uart0", "mout_uart0", DIV_PERIC0, 0, 4),
157 DIV(0, "div_uart1", "mout_uart1", DIV_PERIC0, 4, 4),
158 DIV(0, "div_uart2", "mout_uart2", DIV_PERIC0, 8, 4),
159 DIV(0, "div_uart3", "mout_uart3", DIV_PERIC0, 12, 4),
160
161 DIV(0, "dout_pwm", "mout_pwm", DIV_PERIC3, 0, 4),
162
163 DIV(0, "aclk200", "mout_aclk200", DIV_TOP0, 12, 3),
164 DIV(0, "aclk266", "mpll_user_p", DIV_TOP0, 16, 3),
165 DIV(0, "aclk400", "mout_aclk400", DIV_TOP0, 24, 3),
166};
167
168static const struct samsung_gate_clock exynos5410_gate_clks[] __initconst = {
169 GATE(CLK_SSS, "sss", "aclk266", GATE_IP_G2D, 2, 0, 0),
170 GATE(CLK_MCT, "mct", "aclk66", GATE_IP_PERIS, 18, 0, 0),
171 GATE(CLK_WDT, "wdt", "aclk66", GATE_IP_PERIS, 19, 0, 0),
172 GATE(CLK_RTC, "rtc", "aclk66", GATE_IP_PERIS, 20, 0, 0),
173 GATE(CLK_TMU, "tmu", "aclk66", GATE_IP_PERIS, 21, 0, 0),
174
175 GATE(CLK_SCLK_MMC0, "sclk_mmc0", "div_mmc_pre0",
176 SRC_MASK_FSYS, 0, CLK_SET_RATE_PARENT, 0),
177 GATE(CLK_SCLK_MMC1, "sclk_mmc1", "div_mmc_pre1",
178 SRC_MASK_FSYS, 4, CLK_SET_RATE_PARENT, 0),
179 GATE(CLK_SCLK_MMC2, "sclk_mmc2", "div_mmc_pre2",
180 SRC_MASK_FSYS, 8, CLK_SET_RATE_PARENT, 0),
181
182 GATE(CLK_MMC0, "sdmmc0", "aclk200", GATE_BUS_FSYS0, 12, 0, 0),
183 GATE(CLK_MMC1, "sdmmc1", "aclk200", GATE_BUS_FSYS0, 13, 0, 0),
184 GATE(CLK_MMC2, "sdmmc2", "aclk200", GATE_BUS_FSYS0, 14, 0, 0),
185 GATE(CLK_PDMA1, "pdma1", "aclk200", GATE_BUS_FSYS0, 2, 0, 0),
186 GATE(CLK_PDMA0, "pdma0", "aclk200", GATE_BUS_FSYS0, 1, 0, 0),
187
188 GATE(CLK_SCLK_USBPHY301, "sclk_usbphy301", "dout_usbphy301",
189 GATE_TOP_SCLK_FSYS, 7, CLK_SET_RATE_PARENT, 0),
190 GATE(CLK_SCLK_USBPHY300, "sclk_usbphy300", "dout_usbphy300",
191 GATE_TOP_SCLK_FSYS, 8, CLK_SET_RATE_PARENT, 0),
192 GATE(CLK_SCLK_USBD300, "sclk_usbd300", "dout_usbd300",
193 GATE_TOP_SCLK_FSYS, 9, CLK_SET_RATE_PARENT, 0),
194 GATE(CLK_SCLK_USBD301, "sclk_usbd301", "dout_usbd301",
195 GATE_TOP_SCLK_FSYS, 10, CLK_SET_RATE_PARENT, 0),
196
197 GATE(CLK_SCLK_PWM, "sclk_pwm", "dout_pwm",
198 GATE_TOP_SCLK_PERIC, 11, CLK_SET_RATE_PARENT, 0),
199
200 GATE(CLK_UART0, "uart0", "aclk66", GATE_IP_PERIC, 0, 0, 0),
201 GATE(CLK_UART1, "uart1", "aclk66", GATE_IP_PERIC, 1, 0, 0),
202 GATE(CLK_UART2, "uart2", "aclk66", GATE_IP_PERIC, 2, 0, 0),
203 GATE(CLK_UART3, "uart3", "aclk66", GATE_IP_PERIC, 3, 0, 0),
204 GATE(CLK_I2C0, "i2c0", "aclk66", GATE_IP_PERIC, 6, 0, 0),
205 GATE(CLK_I2C1, "i2c1", "aclk66", GATE_IP_PERIC, 7, 0, 0),
206 GATE(CLK_I2C2, "i2c2", "aclk66", GATE_IP_PERIC, 8, 0, 0),
207 GATE(CLK_I2C3, "i2c3", "aclk66", GATE_IP_PERIC, 9, 0, 0),
208 GATE(CLK_USI0, "usi0", "aclk66", GATE_IP_PERIC, 10, 0, 0),
209 GATE(CLK_USI1, "usi1", "aclk66", GATE_IP_PERIC, 11, 0, 0),
210 GATE(CLK_USI2, "usi2", "aclk66", GATE_IP_PERIC, 12, 0, 0),
211 GATE(CLK_USI3, "usi3", "aclk66", GATE_IP_PERIC, 13, 0, 0),
212 GATE(CLK_PWM, "pwm", "aclk66", GATE_IP_PERIC, 24, 0, 0),
213
214 GATE(CLK_SCLK_UART0, "sclk_uart0", "div_uart0",
215 SRC_MASK_PERIC0, 0, CLK_SET_RATE_PARENT, 0),
216 GATE(CLK_SCLK_UART1, "sclk_uart1", "div_uart1",
217 SRC_MASK_PERIC0, 4, CLK_SET_RATE_PARENT, 0),
218 GATE(CLK_SCLK_UART2, "sclk_uart2", "div_uart2",
219 SRC_MASK_PERIC0, 8, CLK_SET_RATE_PARENT, 0),
220 GATE(CLK_SCLK_UART3, "sclk_uart3", "div_uart3",
221 SRC_MASK_PERIC0, 12, CLK_SET_RATE_PARENT, 0),
222
223 GATE(CLK_USBH20, "usbh20", "aclk200_fsys", GATE_IP_FSYS, 18, 0, 0),
224 GATE(CLK_USBD300, "usbd300", "aclk200_fsys", GATE_IP_FSYS, 19, 0, 0),
225 GATE(CLK_USBD301, "usbd301", "aclk200_fsys", GATE_IP_FSYS, 20, 0, 0),
226};
227
228static const struct samsung_pll_rate_table exynos5410_pll2550x_24mhz_tbl[] __initconst = {
229 PLL_36XX_RATE(24 * MHZ, 400000000U, 200, 3, 2, 0),
230 PLL_36XX_RATE(24 * MHZ, 333000000U, 111, 2, 2, 0),
231 PLL_36XX_RATE(24 * MHZ, 300000000U, 100, 2, 2, 0),
232 PLL_36XX_RATE(24 * MHZ, 266000000U, 266, 3, 3, 0),
233 PLL_36XX_RATE(24 * MHZ, 200000000U, 200, 3, 3, 0),
234 PLL_36XX_RATE(24 * MHZ, 192000000U, 192, 3, 3, 0),
235 PLL_36XX_RATE(24 * MHZ, 166000000U, 166, 3, 3, 0),
236 PLL_36XX_RATE(24 * MHZ, 133000000U, 266, 3, 4, 0),
237 PLL_36XX_RATE(24 * MHZ, 100000000U, 200, 3, 4, 0),
238 PLL_36XX_RATE(24 * MHZ, 66000000U, 176, 2, 5, 0),
239};
240
241static struct samsung_pll_clock exynos5410_plls[nr_plls] __initdata = {
242 [apll] = PLL(pll_35xx, CLK_FOUT_APLL, "fout_apll", "fin_pll", APLL_LOCK,
243 APLL_CON0, NULL),
244 [cpll] = PLL(pll_35xx, CLK_FOUT_CPLL, "fout_cpll", "fin_pll", CPLL_LOCK,
245 CPLL_CON0, NULL),
246 [epll] = PLL(pll_2650x, CLK_FOUT_EPLL, "fout_epll", "fin_pll", EPLL_LOCK,
247 EPLL_CON0, NULL),
248 [mpll] = PLL(pll_35xx, CLK_FOUT_MPLL, "fout_mpll", "fin_pll", MPLL_LOCK,
249 MPLL_CON0, NULL),
250 [bpll] = PLL(pll_35xx, CLK_FOUT_BPLL, "fout_bpll", "fin_pll", BPLL_LOCK,
251 BPLL_CON0, NULL),
252 [kpll] = PLL(pll_35xx, CLK_FOUT_KPLL, "fout_kpll", "fin_pll", KPLL_LOCK,
253 KPLL_CON0, NULL),
254};
255
256static const struct samsung_cmu_info cmu __initconst = {
257 .pll_clks = exynos5410_plls,
258 .nr_pll_clks = ARRAY_SIZE(exynos5410_plls),
259 .mux_clks = exynos5410_mux_clks,
260 .nr_mux_clks = ARRAY_SIZE(exynos5410_mux_clks),
261 .div_clks = exynos5410_div_clks,
262 .nr_div_clks = ARRAY_SIZE(exynos5410_div_clks),
263 .gate_clks = exynos5410_gate_clks,
264 .nr_gate_clks = ARRAY_SIZE(exynos5410_gate_clks),
265 .nr_clk_ids = CLK_NR_CLKS,
266};
267
268
269static void __init exynos5410_clk_init(struct device_node *np)
270{
271 struct clk *xxti = of_clk_get(np, 0);
272
273 if (!IS_ERR(xxti) && clk_get_rate(xxti) == 24 * MHZ)
274 exynos5410_plls[epll].rate_table = exynos5410_pll2550x_24mhz_tbl;
275
276 samsung_cmu_register_one(np, &cmu);
277
278 pr_debug("Exynos5410: clock setup completed.\n");
279}
280CLK_OF_DECLARE(exynos5410_clk, "samsung,exynos5410-clock", exynos5410_clk_init);
281
