1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) 2014 MundoReader S.L.
4 * Author: Heiko Stuebner <heiko@sntech.de>
5 *
6 * Copyright (c) 2015 Rockchip Electronics Co. Ltd.
7 * Author: Xing Zheng <zhengxing@rock-chips.com>
8 */
9
10 #include <linux/clk-provider.h>
11 #include <linux/io.h>
12 #include <linux/of.h>
13 #include <linux/of_address.h>
14 #include <linux/syscore_ops.h>
15 #include <dt-bindings/clock/rk3036-cru.h>
16 #include "clk.h"
17
18 #define RK3036_GRF_SOC_STATUS0 0x14c
19
20 enum rk3036_plls {
21 apll, dpll, gpll,
22 };
23
24 static struct rockchip_pll_rate_table rk3036_pll_rates[] = {
25 /* _mhz, _refdiv, _fbdiv, _postdiv1, _postdiv2, _dsmpd, _frac */
26 RK3036_PLL_RATE(1608000000, 1, 67, 1, 1, 1, 0),
27 RK3036_PLL_RATE(1584000000, 1, 66, 1, 1, 1, 0),
28 RK3036_PLL_RATE(1560000000, 1, 65, 1, 1, 1, 0),
29 RK3036_PLL_RATE(1536000000, 1, 64, 1, 1, 1, 0),
30 RK3036_PLL_RATE(1512000000, 1, 63, 1, 1, 1, 0),
31 RK3036_PLL_RATE(1488000000, 1, 62, 1, 1, 1, 0),
32 RK3036_PLL_RATE(1464000000, 1, 61, 1, 1, 1, 0),
33 RK3036_PLL_RATE(1440000000, 1, 60, 1, 1, 1, 0),
34 RK3036_PLL_RATE(1416000000, 1, 59, 1, 1, 1, 0),
35 RK3036_PLL_RATE(1392000000, 1, 58, 1, 1, 1, 0),
36 RK3036_PLL_RATE(1368000000, 1, 57, 1, 1, 1, 0),
37 RK3036_PLL_RATE(1344000000, 1, 56, 1, 1, 1, 0),
38 RK3036_PLL_RATE(1320000000, 1, 55, 1, 1, 1, 0),
39 RK3036_PLL_RATE(1296000000, 1, 54, 1, 1, 1, 0),
40 RK3036_PLL_RATE(1272000000, 1, 53, 1, 1, 1, 0),
41 RK3036_PLL_RATE(1248000000, 1, 52, 1, 1, 1, 0),
42 RK3036_PLL_RATE(1200000000, 1, 50, 1, 1, 1, 0),
43 RK3036_PLL_RATE(1188000000, 2, 99, 1, 1, 1, 0),
44 RK3036_PLL_RATE(1104000000, 1, 46, 1, 1, 1, 0),
45 RK3036_PLL_RATE(1100000000, 12, 550, 1, 1, 1, 0),
46 RK3036_PLL_RATE(1008000000, 1, 84, 2, 1, 1, 0),
47 RK3036_PLL_RATE(1000000000, 6, 500, 2, 1, 1, 0),
48 RK3036_PLL_RATE( 984000000, 1, 82, 2, 1, 1, 0),
49 RK3036_PLL_RATE( 960000000, 1, 80, 2, 1, 1, 0),
50 RK3036_PLL_RATE( 936000000, 1, 78, 2, 1, 1, 0),
51 RK3036_PLL_RATE( 912000000, 1, 76, 2, 1, 1, 0),
52 RK3036_PLL_RATE( 900000000, 4, 300, 2, 1, 1, 0),
53 RK3036_PLL_RATE( 888000000, 1, 74, 2, 1, 1, 0),
54 RK3036_PLL_RATE( 864000000, 1, 72, 2, 1, 1, 0),
55 RK3036_PLL_RATE( 840000000, 1, 70, 2, 1, 1, 0),
56 RK3036_PLL_RATE( 816000000, 1, 68, 2, 1, 1, 0),
57 RK3036_PLL_RATE( 800000000, 6, 400, 2, 1, 1, 0),
58 RK3036_PLL_RATE( 700000000, 6, 350, 2, 1, 1, 0),
59 RK3036_PLL_RATE( 696000000, 1, 58, 2, 1, 1, 0),
60 RK3036_PLL_RATE( 600000000, 1, 75, 3, 1, 1, 0),
61 RK3036_PLL_RATE( 594000000, 2, 99, 2, 1, 1, 0),
62 RK3036_PLL_RATE( 504000000, 1, 63, 3, 1, 1, 0),
63 RK3036_PLL_RATE( 500000000, 6, 250, 2, 1, 1, 0),
64 RK3036_PLL_RATE( 408000000, 1, 68, 2, 2, 1, 0),
65 RK3036_PLL_RATE( 312000000, 1, 52, 2, 2, 1, 0),
66 RK3036_PLL_RATE( 216000000, 1, 72, 4, 2, 1, 0),
67 RK3036_PLL_RATE( 96000000, 1, 64, 4, 4, 1, 0),
68 { /* sentinel */ },
69 };
70
71 #define RK3036_DIV_CPU_MASK 0x1f
72 #define RK3036_DIV_CPU_SHIFT 8
73
74 #define RK3036_DIV_PERI_MASK 0xf
75 #define RK3036_DIV_PERI_SHIFT 0
76 #define RK3036_DIV_ACLK_MASK 0x7
77 #define RK3036_DIV_ACLK_SHIFT 4
78 #define RK3036_DIV_HCLK_MASK 0x3
79 #define RK3036_DIV_HCLK_SHIFT 8
80 #define RK3036_DIV_PCLK_MASK 0x7
81 #define RK3036_DIV_PCLK_SHIFT 12
82
83 #define RK3036_CLKSEL1(_core_periph_div) \
84 { \
85 .reg = RK2928_CLKSEL_CON(1), \
86 .val = HIWORD_UPDATE(_core_periph_div, RK3036_DIV_PERI_MASK, \
87 RK3036_DIV_PERI_SHIFT) \
88 }
89
90 #define RK3036_CPUCLK_RATE(_prate, _core_periph_div) \
91 { \
92 .prate = _prate, \
93 .divs = { \
94 RK3036_CLKSEL1(_core_periph_div), \
95 }, \
96 }
97
98 static struct rockchip_cpuclk_rate_table rk3036_cpuclk_rates[] __initdata = {
99 RK3036_CPUCLK_RATE(816000000, 4),
100 RK3036_CPUCLK_RATE(600000000, 4),
101 RK3036_CPUCLK_RATE(312000000, 4),
102 };
103
104 static const struct rockchip_cpuclk_reg_data rk3036_cpuclk_data = {
105 .core_reg[0] = RK2928_CLKSEL_CON(0),
106 .div_core_shift[0] = 0,
107 .div_core_mask[0] = 0x1f,
108 .num_cores = 1,
109 .mux_core_alt = 1,
110 .mux_core_main = 0,
111 .mux_core_shift = 7,
112 .mux_core_mask = 0x1,
113 };
114
115 PNAME(mux_pll_p) = { "xin24m", "xin24m" };
116
117 PNAME(mux_armclk_p) = { "apll", "gpll_armclk" };
118 PNAME(mux_busclk_p) = { "apll", "dpll_cpu", "gpll_cpu" };
119 PNAME(mux_ddrphy_p) = { "dpll_ddr", "gpll_ddr" };
120 PNAME(mux_pll_src_3plls_p) = { "apll", "dpll", "gpll" };
121 PNAME(mux_timer_p) = { "xin24m", "pclk_peri_src" };
122
123 PNAME(mux_pll_src_apll_dpll_gpll_usb480m_p) = { "apll", "dpll", "gpll", "usb480m" };
124
125 PNAME(mux_mmc_src_p) = { "apll", "dpll", "gpll", "xin24m" };
126 PNAME(mux_i2s_pre_p) = { "i2s_src", "i2s_frac", "ext_i2s", "xin12m" };
127 PNAME(mux_i2s_clkout_p) = { "i2s_pre", "xin12m" };
128 PNAME(mux_spdif_p) = { "spdif_src", "spdif_frac", "xin12m" };
129 PNAME(mux_uart0_p) = { "uart0_src", "uart0_frac", "xin24m" };
130 PNAME(mux_uart1_p) = { "uart1_src", "uart1_frac", "xin24m" };
131 PNAME(mux_uart2_p) = { "uart2_src", "uart2_frac", "xin24m" };
132 PNAME(mux_mac_p) = { "mac_pll_src", "rmii_clkin" };
133 PNAME(mux_dclk_p) = { "dclk_lcdc", "dclk_cru" };
134
135 static struct rockchip_pll_clock rk3036_pll_clks[] __initdata = {
136 [apll] = PLL(pll_rk3036, PLL_APLL, "apll", mux_pll_p, 0, RK2928_PLL_CON(0),
137 RK2928_MODE_CON, 0, 5, 0, rk3036_pll_rates),
138 [dpll] = PLL(pll_rk3036, PLL_DPLL, "dpll", mux_pll_p, 0, RK2928_PLL_CON(4),
139 RK2928_MODE_CON, 4, 4, 0, NULL),
140 [gpll] = PLL(pll_rk3036, PLL_GPLL, "gpll", mux_pll_p, 0, RK2928_PLL_CON(12),
141 RK2928_MODE_CON, 12, 6, ROCKCHIP_PLL_SYNC_RATE, rk3036_pll_rates),
142 };
143
144 #define MFLAGS CLK_MUX_HIWORD_MASK
145 #define DFLAGS CLK_DIVIDER_HIWORD_MASK
146 #define GFLAGS (CLK_GATE_HIWORD_MASK | CLK_GATE_SET_TO_DISABLE)
147
148 static struct rockchip_clk_branch rk3036_uart0_fracmux __initdata =
149 MUX(SCLK_UART0, "sclk_uart0", mux_uart0_p, CLK_SET_RATE_PARENT,
150 RK2928_CLKSEL_CON(13), 8, 2, MFLAGS);
151
152 static struct rockchip_clk_branch rk3036_uart1_fracmux __initdata =
153 MUX(SCLK_UART1, "sclk_uart1", mux_uart1_p, CLK_SET_RATE_PARENT,
154 RK2928_CLKSEL_CON(14), 8, 2, MFLAGS);
155
156 static struct rockchip_clk_branch rk3036_uart2_fracmux __initdata =
157 MUX(SCLK_UART2, "sclk_uart2", mux_uart2_p, CLK_SET_RATE_PARENT,
158 RK2928_CLKSEL_CON(15), 8, 2, MFLAGS);
159
160 static struct rockchip_clk_branch rk3036_i2s_fracmux __initdata =
161 MUX(0, "i2s_pre", mux_i2s_pre_p, CLK_SET_RATE_PARENT,
162 RK2928_CLKSEL_CON(3), 8, 2, MFLAGS);
163
164 static struct rockchip_clk_branch rk3036_spdif_fracmux __initdata =
165 MUX(SCLK_SPDIF, "sclk_spdif", mux_spdif_p, 0,
166 RK2928_CLKSEL_CON(5), 8, 2, MFLAGS);
167
168 static struct rockchip_clk_branch rk3036_clk_branches[] __initdata = {
169 /*
170 * Clock-Architecture Diagram 1
171 */
172
173 GATE(0, "gpll_armclk", "gpll", CLK_IGNORE_UNUSED,
174 RK2928_CLKGATE_CON(0), 6, GFLAGS),
175
176 FACTOR(0, "xin12m", "xin24m", 0, 1, 2),
177
178 /*
179 * Clock-Architecture Diagram 2
180 */
181
182 GATE(0, "dpll_ddr", "dpll", CLK_IGNORE_UNUSED,
183 RK2928_CLKGATE_CON(0), 2, GFLAGS),
184 GATE(0, "gpll_ddr", "gpll", CLK_IGNORE_UNUSED,
185 RK2928_CLKGATE_CON(0), 8, GFLAGS),
186 COMPOSITE_NOGATE(0, "ddrphy2x", mux_ddrphy_p, CLK_IGNORE_UNUSED,
187 RK2928_CLKSEL_CON(26), 8, 1, MFLAGS, 0, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO),
188 FACTOR(0, "ddrphy", "ddrphy2x", 0, 1, 2),
189
190 COMPOSITE_NOMUX(0, "pclk_dbg", "armclk", CLK_IGNORE_UNUSED,
191 RK2928_CLKSEL_CON(1), 0, 4, DFLAGS | CLK_DIVIDER_READ_ONLY,
192 RK2928_CLKGATE_CON(0), 7, GFLAGS),
193 COMPOSITE_NOMUX(0, "aclk_core_pre", "armclk", CLK_IGNORE_UNUSED,
194 RK2928_CLKSEL_CON(1), 4, 3, DFLAGS | CLK_DIVIDER_READ_ONLY,
195 RK2928_CLKGATE_CON(0), 7, GFLAGS),
196
197 GATE(0, "dpll_cpu", "dpll", 0, RK2928_CLKGATE_CON(10), 8, GFLAGS),
198 GATE(0, "gpll_cpu", "gpll", 0, RK2928_CLKGATE_CON(0), 1, GFLAGS),
199 COMPOSITE_NOGATE(0, "aclk_cpu_src", mux_busclk_p, 0,
200 RK2928_CLKSEL_CON(0), 14, 2, MFLAGS, 8, 5, DFLAGS),
201 GATE(ACLK_CPU, "aclk_cpu", "aclk_cpu_src", CLK_IGNORE_UNUSED,
202 RK2928_CLKGATE_CON(0), 3, GFLAGS),
203 COMPOSITE_NOMUX(PCLK_CPU, "pclk_cpu", "aclk_cpu_src", CLK_IGNORE_UNUSED,
204 RK2928_CLKSEL_CON(1), 12, 3, DFLAGS | CLK_DIVIDER_READ_ONLY,
205 RK2928_CLKGATE_CON(0), 5, GFLAGS),
206 COMPOSITE_NOMUX(HCLK_CPU, "hclk_cpu", "aclk_cpu_src", CLK_IGNORE_UNUSED,
207 RK2928_CLKSEL_CON(1), 8, 2, DFLAGS | CLK_DIVIDER_READ_ONLY,
208 RK2928_CLKGATE_CON(0), 4, GFLAGS),
209
210 COMPOSITE(0, "aclk_peri_src", mux_pll_src_3plls_p, 0,
211 RK2928_CLKSEL_CON(10), 14, 2, MFLAGS, 0, 5, DFLAGS,
212 RK2928_CLKGATE_CON(2), 0, GFLAGS),
213
214 GATE(ACLK_PERI, "aclk_peri", "aclk_peri_src", 0,
215 RK2928_CLKGATE_CON(2), 1, GFLAGS),
216 DIV(0, "pclk_peri_src", "aclk_peri_src", CLK_IGNORE_UNUSED,
217 RK2928_CLKSEL_CON(10), 12, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO),
218 GATE(PCLK_PERI, "pclk_peri", "pclk_peri_src", 0,
219 RK2928_CLKGATE_CON(2), 3, GFLAGS),
220 DIV(0, "hclk_peri_src", "aclk_peri_src", CLK_IGNORE_UNUSED,
221 RK2928_CLKSEL_CON(10), 8, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO),
222 GATE(HCLK_PERI, "hclk_peri", "hclk_peri_src", 0,
223 RK2928_CLKGATE_CON(2), 2, GFLAGS),
224
225 COMPOSITE_NODIV(SCLK_TIMER0, "sclk_timer0", mux_timer_p, CLK_IGNORE_UNUSED,
226 RK2928_CLKSEL_CON(2), 4, 1, MFLAGS,
227 RK2928_CLKGATE_CON(1), 0, GFLAGS),
228 COMPOSITE_NODIV(SCLK_TIMER1, "sclk_timer1", mux_timer_p, CLK_IGNORE_UNUSED,
229 RK2928_CLKSEL_CON(2), 5, 1, MFLAGS,
230 RK2928_CLKGATE_CON(1), 1, GFLAGS),
231 COMPOSITE_NODIV(SCLK_TIMER2, "sclk_timer2", mux_timer_p, CLK_IGNORE_UNUSED,
232 RK2928_CLKSEL_CON(2), 6, 1, MFLAGS,
233 RK2928_CLKGATE_CON(2), 4, GFLAGS),
234 COMPOSITE_NODIV(SCLK_TIMER3, "sclk_timer3", mux_timer_p, CLK_IGNORE_UNUSED,
235 RK2928_CLKSEL_CON(2), 7, 1, MFLAGS,
236 RK2928_CLKGATE_CON(2), 5, GFLAGS),
237
238 MUX(0, "uart_pll_clk", mux_pll_src_apll_dpll_gpll_usb480m_p, 0,
239 RK2928_CLKSEL_CON(13), 10, 2, MFLAGS),
240 COMPOSITE_NOMUX(0, "uart0_src", "uart_pll_clk", 0,
241 RK2928_CLKSEL_CON(13), 0, 7, DFLAGS,
242 RK2928_CLKGATE_CON(1), 8, GFLAGS),
243 COMPOSITE_NOMUX(0, "uart1_src", "uart_pll_clk", 0,
244 RK2928_CLKSEL_CON(14), 0, 7, DFLAGS,
245 RK2928_CLKGATE_CON(1), 10, GFLAGS),
246 COMPOSITE_NOMUX(0, "uart2_src", "uart_pll_clk", 0,
247 RK2928_CLKSEL_CON(15), 0, 7, DFLAGS,
248 RK2928_CLKGATE_CON(1), 12, GFLAGS),
249 COMPOSITE_FRACMUX(0, "uart0_frac", "uart0_src", CLK_SET_RATE_PARENT,
250 RK2928_CLKSEL_CON(17), 0,
251 RK2928_CLKGATE_CON(1), 9, GFLAGS,
252 &rk3036_uart0_fracmux),
253 COMPOSITE_FRACMUX(0, "uart1_frac", "uart1_src", CLK_SET_RATE_PARENT,
254 RK2928_CLKSEL_CON(18), 0,
255 RK2928_CLKGATE_CON(1), 11, GFLAGS,
256 &rk3036_uart1_fracmux),
257 COMPOSITE_FRACMUX(0, "uart2_frac", "uart2_src", CLK_SET_RATE_PARENT,
258 RK2928_CLKSEL_CON(19), 0,
259 RK2928_CLKGATE_CON(1), 13, GFLAGS,
260 &rk3036_uart2_fracmux),
261
262 COMPOSITE(0, "aclk_vcodec", mux_pll_src_3plls_p, 0,
263 RK2928_CLKSEL_CON(32), 14, 2, MFLAGS, 8, 5, DFLAGS,
264 RK2928_CLKGATE_CON(3), 11, GFLAGS),
265 FACTOR_GATE(HCLK_VCODEC, "hclk_vcodec", "aclk_vcodec", 0, 1, 4,
266 RK2928_CLKGATE_CON(3), 12, GFLAGS),
267
268 COMPOSITE(0, "aclk_hvec", mux_pll_src_3plls_p, 0,
269 RK2928_CLKSEL_CON(20), 0, 2, MFLAGS, 2, 5, DFLAGS,
270 RK2928_CLKGATE_CON(10), 6, GFLAGS),
271
272 COMPOSITE(0, "aclk_disp1_pre", mux_pll_src_3plls_p, 0,
273 RK2928_CLKSEL_CON(31), 14, 2, MFLAGS, 8, 5, DFLAGS,
274 RK2928_CLKGATE_CON(1), 4, GFLAGS),
275 COMPOSITE(0, "hclk_disp_pre", mux_pll_src_3plls_p, 0,
276 RK2928_CLKSEL_CON(30), 14, 2, MFLAGS, 8, 5, DFLAGS,
277 RK2928_CLKGATE_CON(0), 11, GFLAGS),
278 COMPOSITE(SCLK_LCDC, "dclk_lcdc", mux_pll_src_3plls_p, 0,
279 RK2928_CLKSEL_CON(28), 0, 2, MFLAGS, 8, 8, DFLAGS,
280 RK2928_CLKGATE_CON(3), 2, GFLAGS),
281
282 COMPOSITE_NODIV(0, "sclk_sdmmc_src", mux_mmc_src_p, 0,
283 RK2928_CLKSEL_CON(12), 8, 2, MFLAGS,
284 RK2928_CLKGATE_CON(2), 11, GFLAGS),
285 DIV(SCLK_SDMMC, "sclk_sdmmc", "sclk_sdmmc_src", 0,
286 RK2928_CLKSEL_CON(11), 0, 7, DFLAGS),
287
288 COMPOSITE_NODIV(0, "sclk_sdio_src", mux_mmc_src_p, 0,
289 RK2928_CLKSEL_CON(12), 10, 2, MFLAGS,
290 RK2928_CLKGATE_CON(2), 13, GFLAGS),
291 DIV(SCLK_SDIO, "sclk_sdio", "sclk_sdio_src", 0,
292 RK2928_CLKSEL_CON(11), 8, 7, DFLAGS),
293
294 COMPOSITE(SCLK_EMMC, "sclk_emmc", mux_mmc_src_p, 0,
295 RK2928_CLKSEL_CON(12), 12, 2, MFLAGS, 0, 7, DFLAGS,
296 RK2928_CLKGATE_CON(2), 14, GFLAGS),
297
298 MMC(SCLK_SDMMC_DRV, "sdmmc_drv", "sclk_sdmmc", RK3036_SDMMC_CON0, 1),
299 MMC(SCLK_SDMMC_SAMPLE, "sdmmc_sample", "sclk_sdmmc", RK3036_SDMMC_CON1, 0),
300
301 MMC(SCLK_SDIO_DRV, "sdio_drv", "sclk_sdio", RK3036_SDIO_CON0, 1),
302 MMC(SCLK_SDIO_SAMPLE, "sdio_sample", "sclk_sdio", RK3036_SDIO_CON1, 0),
303
304 MMC(SCLK_EMMC_DRV, "emmc_drv", "sclk_emmc", RK3036_EMMC_CON0, 1),
305 MMC(SCLK_EMMC_SAMPLE, "emmc_sample", "sclk_emmc", RK3036_EMMC_CON1, 0),
306
307 COMPOSITE(0, "i2s_src", mux_pll_src_3plls_p, 0,
308 RK2928_CLKSEL_CON(3), 14, 2, MFLAGS, 0, 7, DFLAGS,
309 RK2928_CLKGATE_CON(0), 9, GFLAGS),
310 COMPOSITE_FRACMUX(0, "i2s_frac", "i2s_src", CLK_SET_RATE_PARENT,
311 RK2928_CLKSEL_CON(7), 0,
312 RK2928_CLKGATE_CON(0), 10, GFLAGS,
313 &rk3036_i2s_fracmux),
314 COMPOSITE_NODIV(SCLK_I2S_OUT, "i2s_clkout", mux_i2s_clkout_p, 0,
315 RK2928_CLKSEL_CON(3), 12, 1, MFLAGS,
316 RK2928_CLKGATE_CON(0), 13, GFLAGS),
317 GATE(SCLK_I2S, "sclk_i2s", "i2s_pre", CLK_SET_RATE_PARENT,
318 RK2928_CLKGATE_CON(0), 14, GFLAGS),
319
320 COMPOSITE(0, "spdif_src", mux_pll_src_3plls_p, 0,
321 RK2928_CLKSEL_CON(5), 10, 2, MFLAGS, 0, 7, DFLAGS,
322 RK2928_CLKGATE_CON(2), 10, GFLAGS),
323 COMPOSITE_FRACMUX(0, "spdif_frac", "spdif_src", 0,
324 RK2928_CLKSEL_CON(9), 0,
325 RK2928_CLKGATE_CON(2), 12, GFLAGS,
326 &rk3036_spdif_fracmux),
327
328 GATE(SCLK_OTGPHY0, "sclk_otgphy0", "xin12m", CLK_IGNORE_UNUSED,
329 RK2928_CLKGATE_CON(1), 5, GFLAGS),
330
331 COMPOSITE(SCLK_GPU, "sclk_gpu", mux_pll_src_3plls_p, 0,
332 RK2928_CLKSEL_CON(34), 8, 2, MFLAGS, 0, 5, DFLAGS,
333 RK2928_CLKGATE_CON(3), 13, GFLAGS),
334
335 COMPOSITE(SCLK_SPI, "sclk_spi", mux_pll_src_3plls_p, 0,
336 RK2928_CLKSEL_CON(25), 8, 2, MFLAGS, 0, 7, DFLAGS,
337 RK2928_CLKGATE_CON(2), 9, GFLAGS),
338
339 COMPOSITE(SCLK_NANDC, "sclk_nandc", mux_pll_src_3plls_p, 0,
340 RK2928_CLKSEL_CON(16), 8, 2, MFLAGS, 10, 5, DFLAGS,
341 RK2928_CLKGATE_CON(10), 4, GFLAGS),
342
343 COMPOSITE(SCLK_SFC, "sclk_sfc", mux_pll_src_apll_dpll_gpll_usb480m_p, 0,
344 RK2928_CLKSEL_CON(16), 0, 2, MFLAGS, 2, 5, DFLAGS,
345 RK2928_CLKGATE_CON(10), 5, GFLAGS),
346
347 COMPOSITE_NOGATE(SCLK_MACPLL, "mac_pll_src", mux_pll_src_3plls_p, CLK_SET_RATE_NO_REPARENT,
348 RK2928_CLKSEL_CON(21), 0, 2, MFLAGS, 9, 5, DFLAGS),
349 MUX(SCLK_MACREF, "mac_clk_ref", mux_mac_p, CLK_SET_RATE_PARENT,
350 RK2928_CLKSEL_CON(21), 3, 1, MFLAGS),
351
352 COMPOSITE_NOMUX(SCLK_MAC, "mac_clk", "mac_clk_ref", 0,
353 RK2928_CLKSEL_CON(21), 4, 5, DFLAGS,
354 RK2928_CLKGATE_CON(2), 6, GFLAGS),
355 FACTOR(0, "sclk_macref_out", "hclk_peri_src", 0, 1, 2),
356
357 MUX(SCLK_HDMI, "dclk_hdmi", mux_dclk_p, 0,
358 RK2928_CLKSEL_CON(31), 0, 1, MFLAGS),
359
360 /*
361 * Clock-Architecture Diagram 3
362 */
363
364 /* aclk_cpu gates */
365 GATE(0, "sclk_intmem", "aclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 12, GFLAGS),
366 GATE(0, "aclk_strc_sys", "aclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 10, GFLAGS),
367
368 /* hclk_cpu gates */
369 GATE(HCLK_ROM, "hclk_rom", "hclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 6, GFLAGS),
370
371 /* pclk_cpu gates */
372 GATE(PCLK_GRF, "pclk_grf", "pclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 4, GFLAGS),
373 GATE(PCLK_DDRUPCTL, "pclk_ddrupctl", "pclk_cpu", 0, RK2928_CLKGATE_CON(5), 7, GFLAGS),
374 GATE(PCLK_ACODEC, "pclk_acodec", "pclk_cpu", 0, RK2928_CLKGATE_CON(5), 14, GFLAGS),
375 GATE(PCLK_HDMI, "pclk_hdmi", "pclk_cpu", 0, RK2928_CLKGATE_CON(3), 8, GFLAGS),
376
377 /* aclk_vio gates */
378 GATE(ACLK_VIO, "aclk_vio", "aclk_disp1_pre", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(6), 13, GFLAGS),
379 GATE(ACLK_LCDC, "aclk_lcdc", "aclk_disp1_pre", 0, RK2928_CLKGATE_CON(9), 6, GFLAGS),
380
381 GATE(HCLK_VIO_BUS, "hclk_vio_bus", "hclk_disp_pre", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(6), 12, GFLAGS),
382 GATE(HCLK_LCDC, "hclk_lcdc", "hclk_disp_pre", 0, RK2928_CLKGATE_CON(9), 5, GFLAGS),
383
384
385 /* xin24m gates */
386 GATE(SCLK_PVTM_CORE, "sclk_pvtm_core", "xin24m", 0, RK2928_CLKGATE_CON(10), 0, GFLAGS),
387 GATE(SCLK_PVTM_GPU, "sclk_pvtm_gpu", "xin24m", 0, RK2928_CLKGATE_CON(10), 1, GFLAGS),
388
389 /* aclk_peri gates */
390 GATE(0, "aclk_peri_axi_matrix", "aclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 3, GFLAGS),
391 GATE(0, "aclk_cpu_peri", "aclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 2, GFLAGS),
392 GATE(ACLK_DMAC2, "aclk_dmac2", "aclk_peri", 0, RK2928_CLKGATE_CON(5), 1, GFLAGS),
393 GATE(0, "aclk_peri_niu", "aclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(9), 15, GFLAGS),
394
395 /* hclk_peri gates */
396 GATE(0, "hclk_peri_matrix", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 0, GFLAGS),
397 GATE(0, "hclk_usb_peri", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(9), 13, GFLAGS),
398 GATE(0, "hclk_peri_arbi", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(9), 14, GFLAGS),
399 GATE(HCLK_NANDC, "hclk_nandc", "hclk_peri", 0, RK2928_CLKGATE_CON(5), 9, GFLAGS),
400 GATE(HCLK_SDMMC, "hclk_sdmmc", "hclk_peri", 0, RK2928_CLKGATE_CON(5), 10, GFLAGS),
401 GATE(HCLK_SDIO, "hclk_sdio", "hclk_peri", 0, RK2928_CLKGATE_CON(5), 11, GFLAGS),
402 GATE(HCLK_EMMC, "hclk_emmc", "hclk_peri", 0, RK2928_CLKGATE_CON(7), 0, GFLAGS),
403 GATE(HCLK_OTG0, "hclk_otg0", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 13, GFLAGS),
404 GATE(HCLK_OTG1, "hclk_otg1", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(7), 3, GFLAGS),
405 GATE(HCLK_I2S, "hclk_i2s", "hclk_peri", 0, RK2928_CLKGATE_CON(7), 2, GFLAGS),
406 GATE(0, "hclk_sfc", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(3), 14, GFLAGS),
407 GATE(HCLK_MAC, "hclk_mac", "hclk_peri", 0, RK2928_CLKGATE_CON(3), 5, GFLAGS),
408
409 /* pclk_peri gates */
410 GATE(0, "pclk_peri_matrix", "pclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 1, GFLAGS),
411 GATE(0, "pclk_efuse", "pclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 2, GFLAGS),
412 GATE(PCLK_TIMER, "pclk_timer", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 7, GFLAGS),
413 GATE(PCLK_PWM, "pclk_pwm", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 10, GFLAGS),
414 GATE(PCLK_SPI, "pclk_spi", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 12, GFLAGS),
415 GATE(PCLK_WDT, "pclk_wdt", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 15, GFLAGS),
416 GATE(PCLK_UART0, "pclk_uart0", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 0, GFLAGS),
417 GATE(PCLK_UART1, "pclk_uart1", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 1, GFLAGS),
418 GATE(PCLK_UART2, "pclk_uart2", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 2, GFLAGS),
419 GATE(PCLK_I2C0, "pclk_i2c0", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 4, GFLAGS),
420 GATE(PCLK_I2C1, "pclk_i2c1", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 5, GFLAGS),
421 GATE(PCLK_I2C2, "pclk_i2c2", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 6, GFLAGS),
422 GATE(PCLK_GPIO0, "pclk_gpio0", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 9, GFLAGS),
423 GATE(PCLK_GPIO1, "pclk_gpio1", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 10, GFLAGS),
424 GATE(PCLK_GPIO2, "pclk_gpio2", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 11, GFLAGS),
425 };
426
427 static const char *const rk3036_critical_clocks[] __initconst = {
428 "aclk_cpu",
429 "aclk_peri",
430 "hclk_peri",
431 "pclk_peri",
432 "pclk_ddrupctl",
433 };
434
rk3036_clk_init(struct device_node * np)435 static void __init rk3036_clk_init(struct device_node *np)
436 {
437 struct rockchip_clk_provider *ctx;
438 void __iomem *reg_base;
439 struct clk *clk;
440
441 reg_base = of_iomap(np, 0);
442 if (!reg_base) {
443 pr_err("%s: could not map cru region\n", __func__);
444 return;
445 }
446
447 /*
448 * Make uart_pll_clk a child of the gpll, as all other sources are
449 * not that usable / stable.
450 */
451 writel_relaxed(HIWORD_UPDATE(0x2, 0x3, 10),
452 reg_base + RK2928_CLKSEL_CON(13));
453
454 ctx = rockchip_clk_init(np, reg_base, CLK_NR_CLKS);
455 if (IS_ERR(ctx)) {
456 pr_err("%s: rockchip clk init failed\n", __func__);
457 iounmap(reg_base);
458 return;
459 }
460
461 clk = clk_register_fixed_factor(NULL, "usb480m", "xin24m", 0, 20, 1);
462 if (IS_ERR(clk))
463 pr_warn("%s: could not register clock usb480m: %ld\n",
464 __func__, PTR_ERR(clk));
465
466 rockchip_clk_register_plls(ctx, rk3036_pll_clks,
467 ARRAY_SIZE(rk3036_pll_clks),
468 RK3036_GRF_SOC_STATUS0);
469 rockchip_clk_register_branches(ctx, rk3036_clk_branches,
470 ARRAY_SIZE(rk3036_clk_branches));
471 rockchip_clk_protect_critical(rk3036_critical_clocks,
472 ARRAY_SIZE(rk3036_critical_clocks));
473
474 rockchip_clk_register_armclk(ctx, ARMCLK, "armclk",
475 mux_armclk_p, ARRAY_SIZE(mux_armclk_p),
476 &rk3036_cpuclk_data, rk3036_cpuclk_rates,
477 ARRAY_SIZE(rk3036_cpuclk_rates));
478
479 rockchip_register_softrst(np, 9, reg_base + RK2928_SOFTRST_CON(0),
480 ROCKCHIP_SOFTRST_HIWORD_MASK);
481
482 rockchip_register_restart_notifier(ctx, RK2928_GLB_SRST_FST, NULL);
483
484 rockchip_clk_of_add_provider(np, ctx);
485 }
486 CLK_OF_DECLARE(rk3036_cru, "rockchip,rk3036-cru", rk3036_clk_init);
487