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Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux...
[linux/fpc-iii.git] / drivers / clk / rockchip / clk-rk3036.c
blob7cdb2d61f3e0666075ac25d6eb83b7fba88e872d
1 /*
2 * Copyright (c) 2014 MundoReader S.L.
3 * Author: Heiko Stuebner <heiko@sntech.de>
4 *
5 * Copyright (c) 2015 Rockchip Electronics Co. Ltd.
6 * Author: Xing Zheng <zhengxing@rock-chips.com>
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 as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 */
18
19 #include <linux/clk-provider.h>
20 #include <linux/of.h>
21 #include <linux/of_address.h>
22 #include <linux/syscore_ops.h>
23 #include <dt-bindings/clock/rk3036-cru.h>
24 #include "clk.h"
25
26 #define RK3036_GRF_SOC_STATUS0 0x14c
27
28 enum rk3036_plls {
29 apll, dpll, gpll,
30 };
31
32 static struct rockchip_pll_rate_table rk3036_pll_rates[] = {
33 /* _mhz, _refdiv, _fbdiv, _postdiv1, _postdiv2, _dsmpd, _frac */
34 RK3036_PLL_RATE(1608000000, 1, 67, 1, 1, 1, 0),
35 RK3036_PLL_RATE(1584000000, 1, 66, 1, 1, 1, 0),
36 RK3036_PLL_RATE(1560000000, 1, 65, 1, 1, 1, 0),
37 RK3036_PLL_RATE(1536000000, 1, 64, 1, 1, 1, 0),
38 RK3036_PLL_RATE(1512000000, 1, 63, 1, 1, 1, 0),
39 RK3036_PLL_RATE(1488000000, 1, 62, 1, 1, 1, 0),
40 RK3036_PLL_RATE(1464000000, 1, 61, 1, 1, 1, 0),
41 RK3036_PLL_RATE(1440000000, 1, 60, 1, 1, 1, 0),
42 RK3036_PLL_RATE(1416000000, 1, 59, 1, 1, 1, 0),
43 RK3036_PLL_RATE(1392000000, 1, 58, 1, 1, 1, 0),
44 RK3036_PLL_RATE(1368000000, 1, 57, 1, 1, 1, 0),
45 RK3036_PLL_RATE(1344000000, 1, 56, 1, 1, 1, 0),
46 RK3036_PLL_RATE(1320000000, 1, 55, 1, 1, 1, 0),
47 RK3036_PLL_RATE(1296000000, 1, 54, 1, 1, 1, 0),
48 RK3036_PLL_RATE(1272000000, 1, 53, 1, 1, 1, 0),
49 RK3036_PLL_RATE(1248000000, 1, 52, 1, 1, 1, 0),
50 RK3036_PLL_RATE(1200000000, 1, 50, 1, 1, 1, 0),
51 RK3036_PLL_RATE(1188000000, 2, 99, 1, 1, 1, 0),
52 RK3036_PLL_RATE(1104000000, 1, 46, 1, 1, 1, 0),
53 RK3036_PLL_RATE(1100000000, 12, 550, 1, 1, 1, 0),
54 RK3036_PLL_RATE(1008000000, 1, 84, 2, 1, 1, 0),
55 RK3036_PLL_RATE(1000000000, 6, 500, 2, 1, 1, 0),
56 RK3036_PLL_RATE( 984000000, 1, 82, 2, 1, 1, 0),
57 RK3036_PLL_RATE( 960000000, 1, 80, 2, 1, 1, 0),
58 RK3036_PLL_RATE( 936000000, 1, 78, 2, 1, 1, 0),
59 RK3036_PLL_RATE( 912000000, 1, 76, 2, 1, 1, 0),
60 RK3036_PLL_RATE( 900000000, 4, 300, 2, 1, 1, 0),
61 RK3036_PLL_RATE( 888000000, 1, 74, 2, 1, 1, 0),
62 RK3036_PLL_RATE( 864000000, 1, 72, 2, 1, 1, 0),
63 RK3036_PLL_RATE( 840000000, 1, 70, 2, 1, 1, 0),
64 RK3036_PLL_RATE( 816000000, 1, 68, 2, 1, 1, 0),
65 RK3036_PLL_RATE( 800000000, 6, 400, 2, 1, 1, 0),
66 RK3036_PLL_RATE( 700000000, 6, 350, 2, 1, 1, 0),
67 RK3036_PLL_RATE( 696000000, 1, 58, 2, 1, 1, 0),
68 RK3036_PLL_RATE( 600000000, 1, 75, 3, 1, 1, 0),
69 RK3036_PLL_RATE( 594000000, 2, 99, 2, 1, 1, 0),
70 RK3036_PLL_RATE( 504000000, 1, 63, 3, 1, 1, 0),
71 RK3036_PLL_RATE( 500000000, 6, 250, 2, 1, 1, 0),
72 RK3036_PLL_RATE( 408000000, 1, 68, 2, 2, 1, 0),
73 RK3036_PLL_RATE( 312000000, 1, 52, 2, 2, 1, 0),
74 RK3036_PLL_RATE( 216000000, 1, 72, 4, 2, 1, 0),
75 RK3036_PLL_RATE( 96000000, 1, 64, 4, 4, 1, 0),
76 { /* sentinel */ },
77 };
78
79 #define RK3036_DIV_CPU_MASK 0x1f
80 #define RK3036_DIV_CPU_SHIFT 8
81
82 #define RK3036_DIV_PERI_MASK 0xf
83 #define RK3036_DIV_PERI_SHIFT 0
84 #define RK3036_DIV_ACLK_MASK 0x7
85 #define RK3036_DIV_ACLK_SHIFT 4
86 #define RK3036_DIV_HCLK_MASK 0x3
87 #define RK3036_DIV_HCLK_SHIFT 8
88 #define RK3036_DIV_PCLK_MASK 0x7
89 #define RK3036_DIV_PCLK_SHIFT 12
90
91 #define RK3036_CLKSEL1(_core_periph_div) \
92 { \
93 .reg = RK2928_CLKSEL_CON(1), \
94 .val = HIWORD_UPDATE(_core_periph_div, RK3036_DIV_PERI_MASK, \
95 RK3036_DIV_PERI_SHIFT) \
96 }
97
98 #define RK3036_CPUCLK_RATE(_prate, _core_periph_div) \
99 { \
100 .prate = _prate, \
101 .divs = { \
102 RK3036_CLKSEL1(_core_periph_div), \
103 }, \
104 }
105
106 static struct rockchip_cpuclk_rate_table rk3036_cpuclk_rates[] __initdata = {
107 RK3036_CPUCLK_RATE(816000000, 4),
108 RK3036_CPUCLK_RATE(600000000, 4),
109 RK3036_CPUCLK_RATE(312000000, 4),
110 };
111
112 static const struct rockchip_cpuclk_reg_data rk3036_cpuclk_data = {
113 .core_reg = RK2928_CLKSEL_CON(0),
114 .div_core_shift = 0,
115 .div_core_mask = 0x1f,
116 .mux_core_shift = 7,
117 };
118
119 PNAME(mux_pll_p) = { "xin24m", "xin24m" };
120
121 PNAME(mux_armclk_p) = { "apll", "gpll_armclk" };
122 PNAME(mux_busclk_p) = { "apll", "dpll_cpu", "gpll_cpu" };
123 PNAME(mux_ddrphy_p) = { "dpll_ddr", "gpll_ddr" };
124 PNAME(mux_pll_src_3plls_p) = { "apll", "dpll", "gpll" };
125 PNAME(mux_timer_p) = { "xin24m", "pclk_peri_src" };
126
127 PNAME(mux_pll_src_apll_dpll_gpll_usb480m_p) = { "apll", "dpll", "gpll" "usb480m" };
128
129 PNAME(mux_mmc_src_p) = { "apll", "dpll", "gpll", "xin24m" };
130 PNAME(mux_i2s_pre_p) = { "i2s_src", "i2s_frac", "ext_i2s", "xin12m" };
131 PNAME(mux_i2s_clkout_p) = { "i2s_pre", "xin12m" };
132 PNAME(mux_spdif_p) = { "spdif_src", "spdif_frac", "xin12m" };
133 PNAME(mux_uart0_p) = { "uart0_src", "uart0_frac", "xin24m" };
134 PNAME(mux_uart1_p) = { "uart1_src", "uart1_frac", "xin24m" };
135 PNAME(mux_uart2_p) = { "uart2_src", "uart2_frac", "xin24m" };
136 PNAME(mux_mac_p) = { "mac_pll_src", "rmii_clkin" };
137 PNAME(mux_dclk_p) = { "dclk_lcdc", "dclk_cru" };
138
139 static struct rockchip_pll_clock rk3036_pll_clks[] __initdata = {
140 [apll] = PLL(pll_rk3036, PLL_APLL, "apll", mux_pll_p, 0, RK2928_PLL_CON(0),
141 RK2928_MODE_CON, 0, 5, 0, rk3036_pll_rates),
142 [dpll] = PLL(pll_rk3036, PLL_DPLL, "dpll", mux_pll_p, 0, RK2928_PLL_CON(4),
143 RK2928_MODE_CON, 4, 4, 0, NULL),
144 [gpll] = PLL(pll_rk3036, PLL_GPLL, "gpll", mux_pll_p, 0, RK2928_PLL_CON(12),
145 RK2928_MODE_CON, 12, 6, ROCKCHIP_PLL_SYNC_RATE, rk3036_pll_rates),
146 };
147
148 #define MFLAGS CLK_MUX_HIWORD_MASK
149 #define DFLAGS CLK_DIVIDER_HIWORD_MASK
150 #define GFLAGS (CLK_GATE_HIWORD_MASK | CLK_GATE_SET_TO_DISABLE)
151
152 static struct rockchip_clk_branch rk3036_uart0_fracmux __initdata =
153 MUX(SCLK_UART0, "sclk_uart0", mux_uart0_p, CLK_SET_RATE_PARENT,
154 RK2928_CLKSEL_CON(13), 8, 2, MFLAGS);
155
156 static struct rockchip_clk_branch rk3036_uart1_fracmux __initdata =
157 MUX(SCLK_UART1, "sclk_uart1", mux_uart1_p, CLK_SET_RATE_PARENT,
158 RK2928_CLKSEL_CON(14), 8, 2, MFLAGS);
159
160 static struct rockchip_clk_branch rk3036_uart2_fracmux __initdata =
161 MUX(SCLK_UART2, "sclk_uart2", mux_uart2_p, CLK_SET_RATE_PARENT,
162 RK2928_CLKSEL_CON(15), 8, 2, MFLAGS);
163
164 static struct rockchip_clk_branch rk3036_i2s_fracmux __initdata =
165 MUX(0, "i2s_pre", mux_i2s_pre_p, CLK_SET_RATE_PARENT,
166 RK2928_CLKSEL_CON(3), 8, 2, MFLAGS);
167
168 static struct rockchip_clk_branch rk3036_spdif_fracmux __initdata =
169 MUX(SCLK_SPDIF, "sclk_spdif", mux_spdif_p, 0,
170 RK2928_CLKSEL_CON(5), 8, 2, MFLAGS);
171
172 static struct rockchip_clk_branch rk3036_clk_branches[] __initdata = {
173 /*
174 * Clock-Architecture Diagram 1
175 */
176
177 GATE(0, "gpll_armclk", "gpll", CLK_IGNORE_UNUSED,
178 RK2928_CLKGATE_CON(0), 6, GFLAGS),
179
180 FACTOR(0, "xin12m", "xin24m", 0, 1, 2),
181
182 /*
183 * Clock-Architecture Diagram 2
184 */
185
186 GATE(0, "dpll_ddr", "dpll", CLK_IGNORE_UNUSED,
187 RK2928_CLKGATE_CON(0), 2, GFLAGS),
188 GATE(0, "gpll_ddr", "gpll", CLK_IGNORE_UNUSED,
189 RK2928_CLKGATE_CON(0), 8, GFLAGS),
190 COMPOSITE_NOGATE(0, "ddrphy2x", mux_ddrphy_p, CLK_IGNORE_UNUSED,
191 RK2928_CLKSEL_CON(26), 8, 1, MFLAGS, 0, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO),
192 FACTOR(0, "ddrphy", "ddrphy2x", 0, 1, 2),
193
194 COMPOSITE_NOMUX(0, "pclk_dbg", "armclk", CLK_IGNORE_UNUSED,
195 RK2928_CLKSEL_CON(1), 0, 4, DFLAGS | CLK_DIVIDER_READ_ONLY,
196 RK2928_CLKGATE_CON(0), 7, GFLAGS),
197 COMPOSITE_NOMUX(0, "aclk_core_pre", "armclk", CLK_IGNORE_UNUSED,
198 RK2928_CLKSEL_CON(1), 4, 3, DFLAGS | CLK_DIVIDER_READ_ONLY,
199 RK2928_CLKGATE_CON(0), 7, GFLAGS),
200
201 GATE(0, "dpll_cpu", "dpll", 0, RK2928_CLKGATE_CON(10), 8, GFLAGS),
202 GATE(0, "gpll_cpu", "gpll", 0, RK2928_CLKGATE_CON(0), 1, GFLAGS),
203 COMPOSITE_NOGATE(0, "aclk_cpu_src", mux_busclk_p, 0,
204 RK2928_CLKSEL_CON(0), 14, 2, MFLAGS, 8, 5, DFLAGS),
205 GATE(ACLK_CPU, "aclk_cpu", "aclk_cpu_src", CLK_IGNORE_UNUSED,
206 RK2928_CLKGATE_CON(0), 3, GFLAGS),
207 COMPOSITE_NOMUX(PCLK_CPU, "pclk_cpu", "aclk_cpu_src", CLK_IGNORE_UNUSED,
208 RK2928_CLKSEL_CON(1), 12, 3, DFLAGS | CLK_DIVIDER_READ_ONLY,
209 RK2928_CLKGATE_CON(0), 5, GFLAGS),
210 COMPOSITE_NOMUX(HCLK_CPU, "hclk_cpu", "aclk_cpu_src", CLK_IGNORE_UNUSED,
211 RK2928_CLKSEL_CON(1), 8, 2, DFLAGS | CLK_DIVIDER_READ_ONLY,
212 RK2928_CLKGATE_CON(0), 4, GFLAGS),
213
214 COMPOSITE(0, "aclk_peri_src", mux_pll_src_3plls_p, 0,
215 RK2928_CLKSEL_CON(10), 14, 2, MFLAGS, 0, 5, DFLAGS,
216 RK2928_CLKGATE_CON(2), 0, GFLAGS),
217
218 GATE(ACLK_PERI, "aclk_peri", "aclk_peri_src", 0,
219 RK2928_CLKGATE_CON(2), 1, GFLAGS),
220 DIV(0, "pclk_peri_src", "aclk_peri_src", CLK_IGNORE_UNUSED,
221 RK2928_CLKSEL_CON(10), 12, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO),
222 GATE(PCLK_PERI, "pclk_peri", "pclk_peri_src", 0,
223 RK2928_CLKGATE_CON(2), 3, GFLAGS),
224 DIV(0, "hclk_peri_src", "aclk_peri_src", CLK_IGNORE_UNUSED,
225 RK2928_CLKSEL_CON(10), 8, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO),
226 GATE(HCLK_PERI, "hclk_peri", "hclk_peri_src", 0,
227 RK2928_CLKGATE_CON(2), 2, GFLAGS),
228
229 COMPOSITE_NODIV(SCLK_TIMER0, "sclk_timer0", mux_timer_p, CLK_IGNORE_UNUSED,
230 RK2928_CLKSEL_CON(2), 4, 1, MFLAGS,
231 RK2928_CLKGATE_CON(1), 0, GFLAGS),
232 COMPOSITE_NODIV(SCLK_TIMER1, "sclk_timer1", mux_timer_p, CLK_IGNORE_UNUSED,
233 RK2928_CLKSEL_CON(2), 5, 1, MFLAGS,
234 RK2928_CLKGATE_CON(1), 1, GFLAGS),
235 COMPOSITE_NODIV(SCLK_TIMER2, "sclk_timer2", mux_timer_p, CLK_IGNORE_UNUSED,
236 RK2928_CLKSEL_CON(2), 6, 1, MFLAGS,
237 RK2928_CLKGATE_CON(2), 4, GFLAGS),
238 COMPOSITE_NODIV(SCLK_TIMER3, "sclk_timer3", mux_timer_p, CLK_IGNORE_UNUSED,
239 RK2928_CLKSEL_CON(2), 7, 1, MFLAGS,
240 RK2928_CLKGATE_CON(2), 5, GFLAGS),
241
242 MUX(0, "uart_pll_clk", mux_pll_src_apll_dpll_gpll_usb480m_p, 0,
243 RK2928_CLKSEL_CON(13), 10, 2, MFLAGS),
244 COMPOSITE_NOMUX(0, "uart0_src", "uart_pll_clk", 0,
245 RK2928_CLKSEL_CON(13), 0, 7, DFLAGS,
246 RK2928_CLKGATE_CON(1), 8, GFLAGS),
247 COMPOSITE_NOMUX(0, "uart1_src", "uart_pll_clk", 0,
248 RK2928_CLKSEL_CON(14), 0, 7, DFLAGS,
249 RK2928_CLKGATE_CON(1), 10, GFLAGS),
250 COMPOSITE_NOMUX(0, "uart2_src", "uart_pll_clk", 0,
251 RK2928_CLKSEL_CON(15), 0, 7, DFLAGS,
252 RK2928_CLKGATE_CON(1), 12, GFLAGS),
253 COMPOSITE_FRACMUX(0, "uart0_frac", "uart0_src", CLK_SET_RATE_PARENT,
254 RK2928_CLKSEL_CON(17), 0,
255 RK2928_CLKGATE_CON(1), 9, GFLAGS,
256 &rk3036_uart0_fracmux),
257 COMPOSITE_FRACMUX(0, "uart1_frac", "uart1_src", CLK_SET_RATE_PARENT,
258 RK2928_CLKSEL_CON(18), 0,
259 RK2928_CLKGATE_CON(1), 11, GFLAGS,
260 &rk3036_uart1_fracmux),
261 COMPOSITE_FRACMUX(0, "uart2_frac", "uart2_src", CLK_SET_RATE_PARENT,
262 RK2928_CLKSEL_CON(19), 0,
263 RK2928_CLKGATE_CON(1), 13, GFLAGS,
264 &rk3036_uart2_fracmux),
265
266 COMPOSITE(0, "aclk_vcodec", mux_pll_src_3plls_p, 0,
267 RK2928_CLKSEL_CON(32), 14, 2, MFLAGS, 8, 5, DFLAGS,
268 RK2928_CLKGATE_CON(3), 11, GFLAGS),
269 FACTOR_GATE(HCLK_VCODEC, "hclk_vcodec", "aclk_vcodec", 0, 1, 4,
270 RK2928_CLKGATE_CON(3), 12, GFLAGS),
271
272 COMPOSITE(0, "aclk_hvec", mux_pll_src_3plls_p, 0,
273 RK2928_CLKSEL_CON(20), 0, 2, MFLAGS, 2, 5, DFLAGS,
274 RK2928_CLKGATE_CON(10), 6, GFLAGS),
275
276 COMPOSITE(0, "aclk_disp1_pre", mux_pll_src_3plls_p, 0,
277 RK2928_CLKSEL_CON(31), 14, 2, MFLAGS, 8, 5, DFLAGS,
278 RK2928_CLKGATE_CON(1), 4, GFLAGS),
279 COMPOSITE(0, "hclk_disp_pre", mux_pll_src_3plls_p, 0,
280 RK2928_CLKSEL_CON(30), 14, 2, MFLAGS, 8, 5, DFLAGS,
281 RK2928_CLKGATE_CON(0), 11, GFLAGS),
282 COMPOSITE(SCLK_LCDC, "dclk_lcdc", mux_pll_src_3plls_p, 0,
283 RK2928_CLKSEL_CON(28), 0, 2, MFLAGS, 8, 8, DFLAGS,
284 RK2928_CLKGATE_CON(3), 2, GFLAGS),
285
286 COMPOSITE_NODIV(0, "sclk_sdmmc_src", mux_mmc_src_p, 0,
287 RK2928_CLKSEL_CON(12), 8, 2, MFLAGS,
288 RK2928_CLKGATE_CON(2), 11, GFLAGS),
289 DIV(SCLK_SDMMC, "sclk_sdmmc", "sclk_sdmmc_src", 0,
290 RK2928_CLKSEL_CON(11), 0, 7, DFLAGS),
291
292 COMPOSITE_NODIV(0, "sclk_sdio_src", mux_mmc_src_p, 0,
293 RK2928_CLKSEL_CON(12), 10, 2, MFLAGS,
294 RK2928_CLKGATE_CON(2), 13, GFLAGS),
295 DIV(SCLK_SDIO, "sclk_sdio", "sclk_sdio_src", 0,
296 RK2928_CLKSEL_CON(11), 8, 7, DFLAGS),
297
298 COMPOSITE(SCLK_EMMC, "sclk_emmc", mux_mmc_src_p, 0,
299 RK2928_CLKSEL_CON(12), 12, 2, MFLAGS, 0, 7, DFLAGS,
300 RK2928_CLKGATE_CON(2), 14, GFLAGS),
301
302 MMC(SCLK_SDMMC_DRV, "sdmmc_drv", "sclk_sdmmc", RK3036_SDMMC_CON0, 1),
303 MMC(SCLK_SDMMC_SAMPLE, "sdmmc_sample", "sclk_sdmmc", RK3036_SDMMC_CON1, 0),
304
305 MMC(SCLK_SDIO_DRV, "sdio_drv", "sclk_sdio", RK3036_SDIO_CON0, 1),
306 MMC(SCLK_SDIO_SAMPLE, "sdio_sample", "sclk_sdio", RK3036_SDIO_CON1, 0),
307
308 MMC(SCLK_EMMC_DRV, "emmc_drv", "sclk_emmc", RK3036_EMMC_CON0, 1),
309 MMC(SCLK_EMMC_SAMPLE, "emmc_sample", "sclk_emmc", RK3036_EMMC_CON1, 0),
310
311 COMPOSITE(0, "i2s_src", mux_pll_src_3plls_p, 0,
312 RK2928_CLKSEL_CON(3), 14, 2, MFLAGS, 0, 7, DFLAGS,
313 RK2928_CLKGATE_CON(0), 9, GFLAGS),
314 COMPOSITE_FRACMUX(0, "i2s_frac", "i2s_src", CLK_SET_RATE_PARENT,
315 RK2928_CLKSEL_CON(7), 0,
316 RK2928_CLKGATE_CON(0), 10, GFLAGS,
317 &rk3036_i2s_fracmux),
318 COMPOSITE_NODIV(SCLK_I2S_OUT, "i2s_clkout", mux_i2s_clkout_p, 0,
319 RK2928_CLKSEL_CON(3), 12, 1, MFLAGS,
320 RK2928_CLKGATE_CON(0), 13, GFLAGS),
321 GATE(SCLK_I2S, "sclk_i2s", "i2s_pre", CLK_SET_RATE_PARENT,
322 RK2928_CLKGATE_CON(0), 14, GFLAGS),
323
324 COMPOSITE(0, "spdif_src", mux_pll_src_3plls_p, 0,
325 RK2928_CLKSEL_CON(5), 10, 2, MFLAGS, 0, 7, DFLAGS,
326 RK2928_CLKGATE_CON(2), 10, GFLAGS),
327 COMPOSITE_FRACMUX(0, "spdif_frac", "spdif_src", 0,
328 RK2928_CLKSEL_CON(9), 0,
329 RK2928_CLKGATE_CON(2), 12, GFLAGS,
330 &rk3036_spdif_fracmux),
331
332 GATE(SCLK_OTGPHY0, "sclk_otgphy0", "xin12m", CLK_IGNORE_UNUSED,
333 RK2928_CLKGATE_CON(1), 5, GFLAGS),
334
335 COMPOSITE(SCLK_GPU, "sclk_gpu", mux_pll_src_3plls_p, 0,
336 RK2928_CLKSEL_CON(34), 8, 2, MFLAGS, 0, 5, DFLAGS,
337 RK2928_CLKGATE_CON(3), 13, GFLAGS),
338
339 COMPOSITE(SCLK_SPI, "sclk_spi", mux_pll_src_3plls_p, 0,
340 RK2928_CLKSEL_CON(25), 8, 2, MFLAGS, 0, 7, DFLAGS,
341 RK2928_CLKGATE_CON(2), 9, GFLAGS),
342
343 COMPOSITE(SCLK_NANDC, "sclk_nandc", mux_pll_src_3plls_p, 0,
344 RK2928_CLKSEL_CON(16), 8, 2, MFLAGS, 10, 5, DFLAGS,
345 RK2928_CLKGATE_CON(10), 4, GFLAGS),
346
347 COMPOSITE(SCLK_SFC, "sclk_sfc", mux_pll_src_apll_dpll_gpll_usb480m_p, 0,
348 RK2928_CLKSEL_CON(16), 0, 2, MFLAGS, 2, 5, DFLAGS,
349 RK2928_CLKGATE_CON(10), 5, GFLAGS),
350
351 COMPOSITE_NOGATE(SCLK_MACPLL, "mac_pll_src", mux_pll_src_3plls_p, CLK_SET_RATE_NO_REPARENT,
352 RK2928_CLKSEL_CON(21), 0, 2, MFLAGS, 9, 5, DFLAGS),
353 MUX(SCLK_MACREF, "mac_clk_ref", mux_mac_p, CLK_SET_RATE_PARENT,
354 RK2928_CLKSEL_CON(21), 3, 1, MFLAGS),
355
356 COMPOSITE_NOMUX(SCLK_MAC, "mac_clk", "mac_clk_ref", 0,
357 RK2928_CLKSEL_CON(21), 4, 5, DFLAGS,
358 RK2928_CLKGATE_CON(2), 6, GFLAGS),
359 FACTOR(0, "sclk_macref_out", "hclk_peri_src", 0, 1, 2),
360
361 MUX(SCLK_HDMI, "dclk_hdmi", mux_dclk_p, 0,
362 RK2928_CLKSEL_CON(31), 0, 1, MFLAGS),
363
364 /*
365 * Clock-Architecture Diagram 3
366 */
367
368 /* aclk_cpu gates */
369 GATE(0, "sclk_intmem", "aclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 12, GFLAGS),
370 GATE(0, "aclk_strc_sys", "aclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 10, GFLAGS),
371
372 /* hclk_cpu gates */
373 GATE(HCLK_ROM, "hclk_rom", "hclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 6, GFLAGS),
374
375 /* pclk_cpu gates */
376 GATE(PCLK_GRF, "pclk_grf", "pclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 4, GFLAGS),
377 GATE(PCLK_DDRUPCTL, "pclk_ddrupctl", "pclk_cpu", 0, RK2928_CLKGATE_CON(5), 7, GFLAGS),
378 GATE(PCLK_ACODEC, "pclk_acodec", "pclk_cpu", 0, RK2928_CLKGATE_CON(5), 14, GFLAGS),
379 GATE(PCLK_HDMI, "pclk_hdmi", "pclk_cpu", 0, RK2928_CLKGATE_CON(3), 8, GFLAGS),
380
381 /* aclk_vio gates */
382 GATE(ACLK_VIO, "aclk_vio", "aclk_disp1_pre", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(6), 13, GFLAGS),
383 GATE(ACLK_LCDC, "aclk_lcdc", "aclk_disp1_pre", 0, RK2928_CLKGATE_CON(9), 6, GFLAGS),
384
385 GATE(HCLK_VIO_BUS, "hclk_vio_bus", "hclk_disp_pre", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(6), 12, GFLAGS),
386 GATE(HCLK_LCDC, "hclk_lcdc", "hclk_disp_pre", 0, RK2928_CLKGATE_CON(9), 5, GFLAGS),
387
388
389 /* xin24m gates */
390 GATE(SCLK_PVTM_CORE, "sclk_pvtm_core", "xin24m", 0, RK2928_CLKGATE_CON(10), 0, GFLAGS),
391 GATE(SCLK_PVTM_GPU, "sclk_pvtm_gpu", "xin24m", 0, RK2928_CLKGATE_CON(10), 1, GFLAGS),
392
393 /* aclk_peri gates */
394 GATE(0, "aclk_peri_axi_matrix", "aclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 3, GFLAGS),
395 GATE(0, "aclk_cpu_peri", "aclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 2, GFLAGS),
396 GATE(ACLK_DMAC2, "aclk_dmac2", "aclk_peri", 0, RK2928_CLKGATE_CON(5), 1, GFLAGS),
397 GATE(0, "aclk_peri_niu", "aclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(9), 15, GFLAGS),
398
399 /* hclk_peri gates */
400 GATE(0, "hclk_peri_matrix", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 0, GFLAGS),
401 GATE(0, "hclk_usb_peri", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(9), 13, GFLAGS),
402 GATE(0, "hclk_peri_arbi", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(9), 14, GFLAGS),
403 GATE(HCLK_NANDC, "hclk_nandc", "hclk_peri", 0, RK2928_CLKGATE_CON(5), 9, GFLAGS),
404 GATE(HCLK_SDMMC, "hclk_sdmmc", "hclk_peri", 0, RK2928_CLKGATE_CON(5), 10, GFLAGS),
405 GATE(HCLK_SDIO, "hclk_sdio", "hclk_peri", 0, RK2928_CLKGATE_CON(5), 11, GFLAGS),
406 GATE(HCLK_EMMC, "hclk_emmc", "hclk_peri", 0, RK2928_CLKGATE_CON(7), 0, GFLAGS),
407 GATE(HCLK_OTG0, "hclk_otg0", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 13, GFLAGS),
408 GATE(HCLK_OTG1, "hclk_otg1", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(7), 3, GFLAGS),
409 GATE(HCLK_I2S, "hclk_i2s", "hclk_peri", 0, RK2928_CLKGATE_CON(7), 2, GFLAGS),
410 GATE(0, "hclk_sfc", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(3), 14, GFLAGS),
411 GATE(HCLK_MAC, "hclk_mac", "hclk_peri", 0, RK2928_CLKGATE_CON(3), 5, GFLAGS),
412
413 /* pclk_peri gates */
414 GATE(0, "pclk_peri_matrix", "pclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 1, GFLAGS),
415 GATE(0, "pclk_efuse", "pclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 2, GFLAGS),
416 GATE(PCLK_TIMER, "pclk_timer", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 7, GFLAGS),
417 GATE(PCLK_PWM, "pclk_pwm", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 10, GFLAGS),
418 GATE(PCLK_SPI, "pclk_spi", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 12, GFLAGS),
419 GATE(PCLK_WDT, "pclk_wdt", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 15, GFLAGS),
420 GATE(PCLK_UART0, "pclk_uart0", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 0, GFLAGS),
421 GATE(PCLK_UART1, "pclk_uart1", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 1, GFLAGS),
422 GATE(PCLK_UART2, "pclk_uart2", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 2, GFLAGS),
423 GATE(PCLK_I2C0, "pclk_i2c0", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 4, GFLAGS),
424 GATE(PCLK_I2C1, "pclk_i2c1", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 5, GFLAGS),
425 GATE(PCLK_I2C2, "pclk_i2c2", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 6, GFLAGS),
426 GATE(PCLK_GPIO0, "pclk_gpio0", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 9, GFLAGS),
427 GATE(PCLK_GPIO1, "pclk_gpio1", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 10, GFLAGS),
428 GATE(PCLK_GPIO2, "pclk_gpio2", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 11, GFLAGS),
429 };
430
431 static const char *const rk3036_critical_clocks[] __initconst = {
432 "aclk_cpu",
433 "aclk_peri",
434 "hclk_peri",
435 "pclk_peri",
436 };
437
438 static void __init rk3036_clk_init(struct device_node *np)
439 {
440 void __iomem *reg_base;
441 struct clk *clk;
442
443 reg_base = of_iomap(np, 0);
444 if (!reg_base) {
445 pr_err("%s: could not map cru region\n", __func__);
446 return;
447 }
448
449 rockchip_clk_init(np, reg_base, CLK_NR_CLKS);
450
451 clk = clk_register_fixed_factor(NULL, "usb480m", "xin24m", 0, 20, 1);
452 if (IS_ERR(clk))
453 pr_warn("%s: could not register clock usb480m: %ld\n",
454 __func__, PTR_ERR(clk));
455
456 rockchip_clk_register_plls(rk3036_pll_clks,
457 ARRAY_SIZE(rk3036_pll_clks),
458 RK3036_GRF_SOC_STATUS0);
459 rockchip_clk_register_branches(rk3036_clk_branches,
460 ARRAY_SIZE(rk3036_clk_branches));
461 rockchip_clk_protect_critical(rk3036_critical_clocks,
462 ARRAY_SIZE(rk3036_critical_clocks));
463
464 rockchip_clk_register_armclk(ARMCLK, "armclk",
465 mux_armclk_p, ARRAY_SIZE(mux_armclk_p),
466 &rk3036_cpuclk_data, rk3036_cpuclk_rates,
467 ARRAY_SIZE(rk3036_cpuclk_rates));
468
469 rockchip_register_softrst(np, 9, reg_base + RK2928_SOFTRST_CON(0),
470 ROCKCHIP_SOFTRST_HIWORD_MASK);
471
472 rockchip_register_restart_notifier(RK2928_GLB_SRST_FST, NULL);
473 }
474 CLK_OF_DECLARE(rk3036_cru, "rockchip,rk3036-cru", rk3036_clk_init);
Linux with added FPC-III support