2 * (C) Copyright 2015 Google, Inc
3 * (C) 2017 Theobroma Systems Design und Consulting GmbH
5 * SPDX-License-Identifier: GPL-2.0
9 #include <clk-uclass.h>
11 #include <dt-structs.h>
17 #include <asm/arch/clock.h>
18 #include <asm/arch/cru_rk3399.h>
19 #include <asm/arch/hardware.h>
21 #include <dt-bindings/clock/rk3399-cru.h>
23 DECLARE_GLOBAL_DATA_PTR;
25 #if CONFIG_IS_ENABLED(OF_PLATDATA)
26 struct rk3399_clk_plat {
27 struct dtd_rockchip_rk3399_cru dtd;
30 struct rk3399_pmuclk_plat {
31 struct dtd_rockchip_rk3399_pmucru dtd;
43 #define RATE_TO_DIV(input_rate, output_rate) \
44 ((input_rate) / (output_rate) - 1);
45 #define DIV_TO_RATE(input_rate, div) ((input_rate) / ((div) + 1))
47 #define PLL_DIVISORS(hz, _refdiv, _postdiv1, _postdiv2) {\
49 .fbdiv = (u32)((u64)hz * _refdiv * _postdiv1 * _postdiv2 / OSC_HZ),\
50 .postdiv1 = _postdiv1, .postdiv2 = _postdiv2};
52 #if defined(CONFIG_SPL_BUILD)
53 static const struct pll_div gpll_init_cfg = PLL_DIVISORS(GPLL_HZ, 2, 2, 1);
54 static const struct pll_div cpll_init_cfg = PLL_DIVISORS(CPLL_HZ, 1, 2, 2);
56 static const struct pll_div ppll_init_cfg = PLL_DIVISORS(PPLL_HZ, 2, 2, 1);
59 static const struct pll_div apll_l_1600_cfg = PLL_DIVISORS(1600*MHz, 3, 1, 1);
60 static const struct pll_div apll_l_600_cfg = PLL_DIVISORS(600*MHz, 1, 2, 1);
62 static const struct pll_div *apll_l_cfgs[] = {
63 [APLL_L_1600_MHZ] = &apll_l_1600_cfg,
64 [APLL_L_600_MHZ] = &apll_l_600_cfg,
69 PLL_FBDIV_MASK = 0xfff,
73 PLL_POSTDIV2_SHIFT = 12,
74 PLL_POSTDIV2_MASK = 0x7 << PLL_POSTDIV2_SHIFT,
75 PLL_POSTDIV1_SHIFT = 8,
76 PLL_POSTDIV1_MASK = 0x7 << PLL_POSTDIV1_SHIFT,
77 PLL_REFDIV_MASK = 0x3f,
81 PLL_LOCK_STATUS_SHIFT = 31,
82 PLL_LOCK_STATUS_MASK = 1 << PLL_LOCK_STATUS_SHIFT,
83 PLL_FRACDIV_MASK = 0xffffff,
84 PLL_FRACDIV_SHIFT = 0,
88 PLL_MODE_MASK = 3 << PLL_MODE_SHIFT,
93 PLL_DSMPD_MASK = 1 << PLL_DSMPD_SHIFT,
96 /* PMUCRU_CLKSEL_CON0 */
97 PMU_PCLK_DIV_CON_MASK = 0x1f,
98 PMU_PCLK_DIV_CON_SHIFT = 0,
100 /* PMUCRU_CLKSEL_CON1 */
101 SPI3_PLL_SEL_SHIFT = 7,
102 SPI3_PLL_SEL_MASK = 1 << SPI3_PLL_SEL_SHIFT,
103 SPI3_PLL_SEL_24M = 0,
104 SPI3_PLL_SEL_PPLL = 1,
105 SPI3_DIV_CON_SHIFT = 0x0,
106 SPI3_DIV_CON_MASK = 0x7f,
108 /* PMUCRU_CLKSEL_CON2 */
109 I2C_DIV_CON_MASK = 0x7f,
110 CLK_I2C8_DIV_CON_SHIFT = 8,
111 CLK_I2C0_DIV_CON_SHIFT = 0,
113 /* PMUCRU_CLKSEL_CON3 */
114 CLK_I2C4_DIV_CON_SHIFT = 0,
117 ACLKM_CORE_L_DIV_CON_SHIFT = 8,
118 ACLKM_CORE_L_DIV_CON_MASK = 0x1f << ACLKM_CORE_L_DIV_CON_SHIFT,
119 CLK_CORE_L_PLL_SEL_SHIFT = 6,
120 CLK_CORE_L_PLL_SEL_MASK = 3 << CLK_CORE_L_PLL_SEL_SHIFT,
121 CLK_CORE_L_PLL_SEL_ALPLL = 0x0,
122 CLK_CORE_L_PLL_SEL_ABPLL = 0x1,
123 CLK_CORE_L_PLL_SEL_DPLL = 0x10,
124 CLK_CORE_L_PLL_SEL_GPLL = 0x11,
125 CLK_CORE_L_DIV_MASK = 0x1f,
126 CLK_CORE_L_DIV_SHIFT = 0,
129 PCLK_DBG_L_DIV_SHIFT = 0x8,
130 PCLK_DBG_L_DIV_MASK = 0x1f << PCLK_DBG_L_DIV_SHIFT,
131 ATCLK_CORE_L_DIV_SHIFT = 0,
132 ATCLK_CORE_L_DIV_MASK = 0x1f << ATCLK_CORE_L_DIV_SHIFT,
135 PCLK_PERIHP_DIV_CON_SHIFT = 12,
136 PCLK_PERIHP_DIV_CON_MASK = 0x7 << PCLK_PERIHP_DIV_CON_SHIFT,
137 HCLK_PERIHP_DIV_CON_SHIFT = 8,
138 HCLK_PERIHP_DIV_CON_MASK = 3 << HCLK_PERIHP_DIV_CON_SHIFT,
139 ACLK_PERIHP_PLL_SEL_SHIFT = 7,
140 ACLK_PERIHP_PLL_SEL_MASK = 1 << ACLK_PERIHP_PLL_SEL_SHIFT,
141 ACLK_PERIHP_PLL_SEL_CPLL = 0,
142 ACLK_PERIHP_PLL_SEL_GPLL = 1,
143 ACLK_PERIHP_DIV_CON_SHIFT = 0,
144 ACLK_PERIHP_DIV_CON_MASK = 0x1f,
147 ACLK_EMMC_PLL_SEL_SHIFT = 7,
148 ACLK_EMMC_PLL_SEL_MASK = 0x1 << ACLK_EMMC_PLL_SEL_SHIFT,
149 ACLK_EMMC_PLL_SEL_GPLL = 0x1,
150 ACLK_EMMC_DIV_CON_SHIFT = 0,
151 ACLK_EMMC_DIV_CON_MASK = 0x1f,
154 CLK_EMMC_PLL_SHIFT = 8,
155 CLK_EMMC_PLL_MASK = 0x7 << CLK_EMMC_PLL_SHIFT,
156 CLK_EMMC_PLL_SEL_GPLL = 0x1,
157 CLK_EMMC_PLL_SEL_24M = 0x5,
158 CLK_EMMC_DIV_CON_SHIFT = 0,
159 CLK_EMMC_DIV_CON_MASK = 0x7f << CLK_EMMC_DIV_CON_SHIFT,
162 PCLK_PERILP0_DIV_CON_SHIFT = 12,
163 PCLK_PERILP0_DIV_CON_MASK = 0x7 << PCLK_PERILP0_DIV_CON_SHIFT,
164 HCLK_PERILP0_DIV_CON_SHIFT = 8,
165 HCLK_PERILP0_DIV_CON_MASK = 3 << HCLK_PERILP0_DIV_CON_SHIFT,
166 ACLK_PERILP0_PLL_SEL_SHIFT = 7,
167 ACLK_PERILP0_PLL_SEL_MASK = 1 << ACLK_PERILP0_PLL_SEL_SHIFT,
168 ACLK_PERILP0_PLL_SEL_CPLL = 0,
169 ACLK_PERILP0_PLL_SEL_GPLL = 1,
170 ACLK_PERILP0_DIV_CON_SHIFT = 0,
171 ACLK_PERILP0_DIV_CON_MASK = 0x1f,
174 PCLK_PERILP1_DIV_CON_SHIFT = 8,
175 PCLK_PERILP1_DIV_CON_MASK = 0x7 << PCLK_PERILP1_DIV_CON_SHIFT,
176 HCLK_PERILP1_PLL_SEL_SHIFT = 7,
177 HCLK_PERILP1_PLL_SEL_MASK = 1 << HCLK_PERILP1_PLL_SEL_SHIFT,
178 HCLK_PERILP1_PLL_SEL_CPLL = 0,
179 HCLK_PERILP1_PLL_SEL_GPLL = 1,
180 HCLK_PERILP1_DIV_CON_SHIFT = 0,
181 HCLK_PERILP1_DIV_CON_MASK = 0x1f,
184 CLK_SARADC_DIV_CON_SHIFT = 8,
185 CLK_SARADC_DIV_CON_MASK = GENMASK(15, 8),
186 CLK_SARADC_DIV_CON_WIDTH = 8,
189 CLK_TSADC_SEL_X24M = 0x0,
190 CLK_TSADC_SEL_SHIFT = 15,
191 CLK_TSADC_SEL_MASK = 1 << CLK_TSADC_SEL_SHIFT,
192 CLK_TSADC_DIV_CON_SHIFT = 0,
193 CLK_TSADC_DIV_CON_MASK = 0x3ff,
195 /* CLKSEL_CON47 & CLKSEL_CON48 */
196 ACLK_VOP_PLL_SEL_SHIFT = 6,
197 ACLK_VOP_PLL_SEL_MASK = 0x3 << ACLK_VOP_PLL_SEL_SHIFT,
198 ACLK_VOP_PLL_SEL_CPLL = 0x1,
199 ACLK_VOP_DIV_CON_SHIFT = 0,
200 ACLK_VOP_DIV_CON_MASK = 0x1f << ACLK_VOP_DIV_CON_SHIFT,
202 /* CLKSEL_CON49 & CLKSEL_CON50 */
203 DCLK_VOP_DCLK_SEL_SHIFT = 11,
204 DCLK_VOP_DCLK_SEL_MASK = 1 << DCLK_VOP_DCLK_SEL_SHIFT,
205 DCLK_VOP_DCLK_SEL_DIVOUT = 0,
206 DCLK_VOP_PLL_SEL_SHIFT = 8,
207 DCLK_VOP_PLL_SEL_MASK = 3 << DCLK_VOP_PLL_SEL_SHIFT,
208 DCLK_VOP_PLL_SEL_VPLL = 0,
209 DCLK_VOP_DIV_CON_MASK = 0xff,
210 DCLK_VOP_DIV_CON_SHIFT = 0,
213 CLK_SPI_PLL_SEL_WIDTH = 1,
214 CLK_SPI_PLL_SEL_MASK = ((1 < CLK_SPI_PLL_SEL_WIDTH) - 1),
215 CLK_SPI_PLL_SEL_CPLL = 0,
216 CLK_SPI_PLL_SEL_GPLL = 1,
217 CLK_SPI_PLL_DIV_CON_WIDTH = 7,
218 CLK_SPI_PLL_DIV_CON_MASK = ((1 << CLK_SPI_PLL_DIV_CON_WIDTH) - 1),
220 CLK_SPI5_PLL_DIV_CON_SHIFT = 8,
221 CLK_SPI5_PLL_SEL_SHIFT = 15,
224 CLK_SPI1_PLL_SEL_SHIFT = 15,
225 CLK_SPI1_PLL_DIV_CON_SHIFT = 8,
226 CLK_SPI0_PLL_SEL_SHIFT = 7,
227 CLK_SPI0_PLL_DIV_CON_SHIFT = 0,
230 CLK_SPI4_PLL_SEL_SHIFT = 15,
231 CLK_SPI4_PLL_DIV_CON_SHIFT = 8,
232 CLK_SPI2_PLL_SEL_SHIFT = 7,
233 CLK_SPI2_PLL_DIV_CON_SHIFT = 0,
236 CLK_I2C_PLL_SEL_MASK = 1,
237 CLK_I2C_PLL_SEL_CPLL = 0,
238 CLK_I2C_PLL_SEL_GPLL = 1,
239 CLK_I2C5_PLL_SEL_SHIFT = 15,
240 CLK_I2C5_DIV_CON_SHIFT = 8,
241 CLK_I2C1_PLL_SEL_SHIFT = 7,
242 CLK_I2C1_DIV_CON_SHIFT = 0,
245 CLK_I2C6_PLL_SEL_SHIFT = 15,
246 CLK_I2C6_DIV_CON_SHIFT = 8,
247 CLK_I2C2_PLL_SEL_SHIFT = 7,
248 CLK_I2C2_DIV_CON_SHIFT = 0,
251 CLK_I2C7_PLL_SEL_SHIFT = 15,
252 CLK_I2C7_DIV_CON_SHIFT = 8,
253 CLK_I2C3_PLL_SEL_SHIFT = 7,
254 CLK_I2C3_DIV_CON_SHIFT = 0,
256 /* CRU_SOFTRST_CON4 */
257 RESETN_DDR0_REQ_SHIFT = 8,
258 RESETN_DDR0_REQ_MASK = 1 << RESETN_DDR0_REQ_SHIFT,
259 RESETN_DDRPHY0_REQ_SHIFT = 9,
260 RESETN_DDRPHY0_REQ_MASK = 1 << RESETN_DDRPHY0_REQ_SHIFT,
261 RESETN_DDR1_REQ_SHIFT = 12,
262 RESETN_DDR1_REQ_MASK = 1 << RESETN_DDR1_REQ_SHIFT,
263 RESETN_DDRPHY1_REQ_SHIFT = 13,
264 RESETN_DDRPHY1_REQ_MASK = 1 << RESETN_DDRPHY1_REQ_SHIFT,
267 #define VCO_MAX_KHZ (3200 * (MHz / KHz))
268 #define VCO_MIN_KHZ (800 * (MHz / KHz))
269 #define OUTPUT_MAX_KHZ (3200 * (MHz / KHz))
270 #define OUTPUT_MIN_KHZ (16 * (MHz / KHz))
273 * the div restructions of pll in integer mode, these are defined in
274 * * CRU_*PLL_CON0 or PMUCRU_*PLL_CON0
276 #define PLL_DIV_MIN 16
277 #define PLL_DIV_MAX 3200
280 * How to calculate the PLL(from TRM V0.3 Part 1 Page 63):
281 * Formulas also embedded within the Fractional PLL Verilog model:
282 * If DSMPD = 1 (DSM is disabled, "integer mode")
283 * FOUTVCO = FREF / REFDIV * FBDIV
284 * FOUTPOSTDIV = FOUTVCO / POSTDIV1 / POSTDIV2
286 * FOUTVCO = Fractional PLL non-divided output frequency
287 * FOUTPOSTDIV = Fractional PLL divided output frequency
288 * (output of second post divider)
289 * FREF = Fractional PLL input reference frequency, (the OSC_HZ 24MHz input)
290 * REFDIV = Fractional PLL input reference clock divider
291 * FBDIV = Integer value programmed into feedback divide
294 static void rkclk_set_pll(u32 *pll_con, const struct pll_div *div)
296 /* All 8 PLLs have same VCO and output frequency range restrictions. */
297 u32 vco_khz = OSC_HZ / 1000 * div->fbdiv / div->refdiv;
298 u32 output_khz = vco_khz / div->postdiv1 / div->postdiv2;
300 debug("PLL at %p: fbdiv=%d, refdiv=%d, postdiv1=%d, "
301 "postdiv2=%d, vco=%u khz, output=%u khz\n",
302 pll_con, div->fbdiv, div->refdiv, div->postdiv1,
303 div->postdiv2, vco_khz, output_khz);
304 assert(vco_khz >= VCO_MIN_KHZ && vco_khz <= VCO_MAX_KHZ &&
305 output_khz >= OUTPUT_MIN_KHZ && output_khz <= OUTPUT_MAX_KHZ &&
306 div->fbdiv >= PLL_DIV_MIN && div->fbdiv <= PLL_DIV_MAX);
309 * When power on or changing PLL setting,
310 * we must force PLL into slow mode to ensure output stable clock.
312 rk_clrsetreg(&pll_con[3], PLL_MODE_MASK,
313 PLL_MODE_SLOW << PLL_MODE_SHIFT);
315 /* use integer mode */
316 rk_clrsetreg(&pll_con[3], PLL_DSMPD_MASK,
317 PLL_INTEGER_MODE << PLL_DSMPD_SHIFT);
319 rk_clrsetreg(&pll_con[0], PLL_FBDIV_MASK,
320 div->fbdiv << PLL_FBDIV_SHIFT);
321 rk_clrsetreg(&pll_con[1],
322 PLL_POSTDIV2_MASK | PLL_POSTDIV1_MASK |
323 PLL_REFDIV_MASK | PLL_REFDIV_SHIFT,
324 (div->postdiv2 << PLL_POSTDIV2_SHIFT) |
325 (div->postdiv1 << PLL_POSTDIV1_SHIFT) |
326 (div->refdiv << PLL_REFDIV_SHIFT));
328 /* waiting for pll lock */
329 while (!(readl(&pll_con[2]) & (1 << PLL_LOCK_STATUS_SHIFT)))
332 /* pll enter normal mode */
333 rk_clrsetreg(&pll_con[3], PLL_MODE_MASK,
334 PLL_MODE_NORM << PLL_MODE_SHIFT);
337 static int pll_para_config(u32 freq_hz, struct pll_div *div)
339 u32 ref_khz = OSC_HZ / KHz, refdiv, fbdiv = 0;
340 u32 postdiv1, postdiv2 = 1;
342 u32 diff_khz, best_diff_khz;
343 const u32 max_refdiv = 63, max_fbdiv = 3200, min_fbdiv = 16;
344 const u32 max_postdiv1 = 7, max_postdiv2 = 7;
346 u32 freq_khz = freq_hz / KHz;
349 printf("%s: the frequency can't be 0 Hz\n", __func__);
353 postdiv1 = DIV_ROUND_UP(VCO_MIN_KHZ, freq_khz);
354 if (postdiv1 > max_postdiv1) {
355 postdiv2 = DIV_ROUND_UP(postdiv1, max_postdiv1);
356 postdiv1 = DIV_ROUND_UP(postdiv1, postdiv2);
359 vco_khz = freq_khz * postdiv1 * postdiv2;
361 if (vco_khz < VCO_MIN_KHZ || vco_khz > VCO_MAX_KHZ ||
362 postdiv2 > max_postdiv2) {
363 printf("%s: Cannot find out a supported VCO"
364 " for Frequency (%uHz).\n", __func__, freq_hz);
368 div->postdiv1 = postdiv1;
369 div->postdiv2 = postdiv2;
371 best_diff_khz = vco_khz;
372 for (refdiv = 1; refdiv < max_refdiv && best_diff_khz; refdiv++) {
373 fref_khz = ref_khz / refdiv;
375 fbdiv = vco_khz / fref_khz;
376 if ((fbdiv >= max_fbdiv) || (fbdiv <= min_fbdiv))
378 diff_khz = vco_khz - fbdiv * fref_khz;
379 if (fbdiv + 1 < max_fbdiv && diff_khz > fref_khz / 2) {
381 diff_khz = fref_khz - diff_khz;
384 if (diff_khz >= best_diff_khz)
387 best_diff_khz = diff_khz;
388 div->refdiv = refdiv;
392 if (best_diff_khz > 4 * (MHz/KHz)) {
393 printf("%s: Failed to match output frequency %u, "
394 "difference is %u Hz,exceed 4MHZ\n", __func__, freq_hz,
395 best_diff_khz * KHz);
401 void rk3399_configure_cpu(struct rk3399_cru *cru,
402 enum apll_l_frequencies apll_l_freq)
408 rkclk_set_pll(&cru->apll_l_con[0], apll_l_cfgs[apll_l_freq]);
410 aclkm_div = APLL_HZ / ACLKM_CORE_HZ - 1;
411 assert((aclkm_div + 1) * ACLKM_CORE_HZ == APLL_HZ &&
414 pclk_dbg_div = APLL_HZ / PCLK_DBG_HZ - 1;
415 assert((pclk_dbg_div + 1) * PCLK_DBG_HZ == APLL_HZ &&
416 pclk_dbg_div < 0x1f);
418 atclk_div = APLL_HZ / ATCLK_CORE_HZ - 1;
419 assert((atclk_div + 1) * ATCLK_CORE_HZ == APLL_HZ &&
422 rk_clrsetreg(&cru->clksel_con[0],
423 ACLKM_CORE_L_DIV_CON_MASK | CLK_CORE_L_PLL_SEL_MASK |
425 aclkm_div << ACLKM_CORE_L_DIV_CON_SHIFT |
426 CLK_CORE_L_PLL_SEL_ALPLL << CLK_CORE_L_PLL_SEL_SHIFT |
427 0 << CLK_CORE_L_DIV_SHIFT);
429 rk_clrsetreg(&cru->clksel_con[1],
430 PCLK_DBG_L_DIV_MASK | ATCLK_CORE_L_DIV_MASK,
431 pclk_dbg_div << PCLK_DBG_L_DIV_SHIFT |
432 atclk_div << ATCLK_CORE_L_DIV_SHIFT);
434 #define I2C_CLK_REG_MASK(bus) \
435 (I2C_DIV_CON_MASK << \
436 CLK_I2C ##bus## _DIV_CON_SHIFT | \
437 CLK_I2C_PLL_SEL_MASK << \
438 CLK_I2C ##bus## _PLL_SEL_SHIFT)
440 #define I2C_CLK_REG_VALUE(bus, clk_div) \
442 CLK_I2C ##bus## _DIV_CON_SHIFT | \
443 CLK_I2C_PLL_SEL_GPLL << \
444 CLK_I2C ##bus## _PLL_SEL_SHIFT)
446 #define I2C_CLK_DIV_VALUE(con, bus) \
447 (con >> CLK_I2C ##bus## _DIV_CON_SHIFT) & \
450 #define I2C_PMUCLK_REG_MASK(bus) \
451 (I2C_DIV_CON_MASK << \
452 CLK_I2C ##bus## _DIV_CON_SHIFT)
454 #define I2C_PMUCLK_REG_VALUE(bus, clk_div) \
456 CLK_I2C ##bus## _DIV_CON_SHIFT)
458 static ulong rk3399_i2c_get_clk(struct rk3399_cru *cru, ulong clk_id)
464 con = readl(&cru->clksel_con[61]);
465 div = I2C_CLK_DIV_VALUE(con, 1);
468 con = readl(&cru->clksel_con[62]);
469 div = I2C_CLK_DIV_VALUE(con, 2);
472 con = readl(&cru->clksel_con[63]);
473 div = I2C_CLK_DIV_VALUE(con, 3);
476 con = readl(&cru->clksel_con[61]);
477 div = I2C_CLK_DIV_VALUE(con, 5);
480 con = readl(&cru->clksel_con[62]);
481 div = I2C_CLK_DIV_VALUE(con, 6);
484 con = readl(&cru->clksel_con[63]);
485 div = I2C_CLK_DIV_VALUE(con, 7);
488 printf("do not support this i2c bus\n");
492 return DIV_TO_RATE(GPLL_HZ, div);
495 static ulong rk3399_i2c_set_clk(struct rk3399_cru *cru, ulong clk_id, uint hz)
499 /* i2c0,4,8 src clock from ppll, i2c1,2,3,5,6,7 src clock from gpll*/
500 src_clk_div = GPLL_HZ / hz;
501 assert(src_clk_div - 1 < 127);
505 rk_clrsetreg(&cru->clksel_con[61], I2C_CLK_REG_MASK(1),
506 I2C_CLK_REG_VALUE(1, src_clk_div));
509 rk_clrsetreg(&cru->clksel_con[62], I2C_CLK_REG_MASK(2),
510 I2C_CLK_REG_VALUE(2, src_clk_div));
513 rk_clrsetreg(&cru->clksel_con[63], I2C_CLK_REG_MASK(3),
514 I2C_CLK_REG_VALUE(3, src_clk_div));
517 rk_clrsetreg(&cru->clksel_con[61], I2C_CLK_REG_MASK(5),
518 I2C_CLK_REG_VALUE(5, src_clk_div));
521 rk_clrsetreg(&cru->clksel_con[62], I2C_CLK_REG_MASK(6),
522 I2C_CLK_REG_VALUE(6, src_clk_div));
525 rk_clrsetreg(&cru->clksel_con[63], I2C_CLK_REG_MASK(7),
526 I2C_CLK_REG_VALUE(7, src_clk_div));
529 printf("do not support this i2c bus\n");
533 return rk3399_i2c_get_clk(cru, clk_id);
537 * RK3399 SPI clocks have a common divider-width (7 bits) and a single bit
538 * to select either CPLL or GPLL as the clock-parent. The location within
539 * the enclosing CLKSEL_CON (i.e. div_shift and sel_shift) are variable.
543 uint8_t reg; /* CLKSEL_CON[reg] register in CRU */
549 * The entries are numbered relative to their offset from SCLK_SPI0.
551 * Note that SCLK_SPI3 (which is configured via PMUCRU and requires different
552 * logic is not supported).
554 static const struct spi_clkreg spi_clkregs[] = {
556 .div_shift = CLK_SPI0_PLL_DIV_CON_SHIFT,
557 .sel_shift = CLK_SPI0_PLL_SEL_SHIFT, },
559 .div_shift = CLK_SPI1_PLL_DIV_CON_SHIFT,
560 .sel_shift = CLK_SPI1_PLL_SEL_SHIFT, },
562 .div_shift = CLK_SPI2_PLL_DIV_CON_SHIFT,
563 .sel_shift = CLK_SPI2_PLL_SEL_SHIFT, },
565 .div_shift = CLK_SPI4_PLL_DIV_CON_SHIFT,
566 .sel_shift = CLK_SPI4_PLL_SEL_SHIFT, },
568 .div_shift = CLK_SPI5_PLL_DIV_CON_SHIFT,
569 .sel_shift = CLK_SPI5_PLL_SEL_SHIFT, },
572 static inline u32 extract_bits(u32 val, unsigned width, unsigned shift)
574 return (val >> shift) & ((1 << width) - 1);
577 static ulong rk3399_spi_get_clk(struct rk3399_cru *cru, ulong clk_id)
579 const struct spi_clkreg *spiclk = NULL;
583 case SCLK_SPI0 ... SCLK_SPI5:
584 spiclk = &spi_clkregs[clk_id - SCLK_SPI0];
588 pr_err("%s: SPI clk-id %ld not supported\n", __func__, clk_id);
592 val = readl(&cru->clksel_con[spiclk->reg]);
593 div = extract_bits(val, CLK_SPI_PLL_DIV_CON_WIDTH, spiclk->div_shift);
595 return DIV_TO_RATE(GPLL_HZ, div);
598 static ulong rk3399_spi_set_clk(struct rk3399_cru *cru, ulong clk_id, uint hz)
600 const struct spi_clkreg *spiclk = NULL;
603 src_clk_div = DIV_ROUND_UP(GPLL_HZ, hz) - 1;
604 assert(src_clk_div < 128);
607 case SCLK_SPI1 ... SCLK_SPI5:
608 spiclk = &spi_clkregs[clk_id - SCLK_SPI0];
612 pr_err("%s: SPI clk-id %ld not supported\n", __func__, clk_id);
616 rk_clrsetreg(&cru->clksel_con[spiclk->reg],
617 ((CLK_SPI_PLL_DIV_CON_MASK << spiclk->div_shift) |
618 (CLK_SPI_PLL_SEL_GPLL << spiclk->sel_shift)),
619 ((src_clk_div << spiclk->div_shift) |
620 (CLK_SPI_PLL_SEL_GPLL << spiclk->sel_shift)));
622 return rk3399_spi_get_clk(cru, clk_id);
625 static ulong rk3399_vop_set_clk(struct rk3399_cru *cru, ulong clk_id, u32 hz)
627 struct pll_div vpll_config = {0};
628 int aclk_vop = 198*MHz;
629 void *aclkreg_addr, *dclkreg_addr;
634 aclkreg_addr = &cru->clksel_con[47];
635 dclkreg_addr = &cru->clksel_con[49];
638 aclkreg_addr = &cru->clksel_con[48];
639 dclkreg_addr = &cru->clksel_con[50];
644 /* vop aclk source clk: cpll */
645 div = CPLL_HZ / aclk_vop;
646 assert(div - 1 < 32);
648 rk_clrsetreg(aclkreg_addr,
649 ACLK_VOP_PLL_SEL_MASK | ACLK_VOP_DIV_CON_MASK,
650 ACLK_VOP_PLL_SEL_CPLL << ACLK_VOP_PLL_SEL_SHIFT |
651 (div - 1) << ACLK_VOP_DIV_CON_SHIFT);
653 /* vop dclk source from vpll, and equals to vpll(means div == 1) */
654 if (pll_para_config(hz, &vpll_config))
657 rkclk_set_pll(&cru->vpll_con[0], &vpll_config);
659 rk_clrsetreg(dclkreg_addr,
660 DCLK_VOP_DCLK_SEL_MASK | DCLK_VOP_PLL_SEL_MASK|
661 DCLK_VOP_DIV_CON_MASK,
662 DCLK_VOP_DCLK_SEL_DIVOUT << DCLK_VOP_DCLK_SEL_SHIFT |
663 DCLK_VOP_PLL_SEL_VPLL << DCLK_VOP_PLL_SEL_SHIFT |
664 (1 - 1) << DCLK_VOP_DIV_CON_SHIFT);
669 static ulong rk3399_mmc_get_clk(struct rk3399_cru *cru, uint clk_id)
676 con = readl(&cru->clksel_con[16]);
677 /* dwmmc controller have internal div 2 */
681 con = readl(&cru->clksel_con[21]);
688 div *= (con & CLK_EMMC_DIV_CON_MASK) >> CLK_EMMC_DIV_CON_SHIFT;
689 if ((con & CLK_EMMC_PLL_MASK) >> CLK_EMMC_PLL_SHIFT
690 == CLK_EMMC_PLL_SEL_24M)
691 return DIV_TO_RATE(OSC_HZ, div);
693 return DIV_TO_RATE(GPLL_HZ, div);
696 static ulong rk3399_mmc_set_clk(struct rk3399_cru *cru,
697 ulong clk_id, ulong set_rate)
700 int aclk_emmc = 198*MHz;
705 /* Select clk_sdmmc source from GPLL by default */
706 /* mmc clock defaulg div 2 internal, provide double in cru */
707 src_clk_div = DIV_ROUND_UP(GPLL_HZ / 2, set_rate);
709 if (src_clk_div > 128) {
710 /* use 24MHz source for 400KHz clock */
711 src_clk_div = DIV_ROUND_UP(OSC_HZ / 2, set_rate);
712 assert(src_clk_div - 1 < 128);
713 rk_clrsetreg(&cru->clksel_con[16],
714 CLK_EMMC_PLL_MASK | CLK_EMMC_DIV_CON_MASK,
715 CLK_EMMC_PLL_SEL_24M << CLK_EMMC_PLL_SHIFT |
716 (src_clk_div - 1) << CLK_EMMC_DIV_CON_SHIFT);
718 rk_clrsetreg(&cru->clksel_con[16],
719 CLK_EMMC_PLL_MASK | CLK_EMMC_DIV_CON_MASK,
720 CLK_EMMC_PLL_SEL_GPLL << CLK_EMMC_PLL_SHIFT |
721 (src_clk_div - 1) << CLK_EMMC_DIV_CON_SHIFT);
725 /* Select aclk_emmc source from GPLL */
726 src_clk_div = DIV_ROUND_UP(GPLL_HZ , aclk_emmc);
727 assert(src_clk_div - 1 < 32);
729 rk_clrsetreg(&cru->clksel_con[21],
730 ACLK_EMMC_PLL_SEL_MASK | ACLK_EMMC_DIV_CON_MASK,
731 ACLK_EMMC_PLL_SEL_GPLL << ACLK_EMMC_PLL_SEL_SHIFT |
732 (src_clk_div - 1) << ACLK_EMMC_DIV_CON_SHIFT);
734 /* Select clk_emmc source from GPLL too */
735 src_clk_div = DIV_ROUND_UP(GPLL_HZ, set_rate);
736 assert(src_clk_div - 1 < 128);
738 rk_clrsetreg(&cru->clksel_con[22],
739 CLK_EMMC_PLL_MASK | CLK_EMMC_DIV_CON_MASK,
740 CLK_EMMC_PLL_SEL_GPLL << CLK_EMMC_PLL_SHIFT |
741 (src_clk_div - 1) << CLK_EMMC_DIV_CON_SHIFT);
746 return rk3399_mmc_get_clk(cru, clk_id);
749 #define PMUSGRF_DDR_RGN_CON16 0xff330040
750 static ulong rk3399_ddr_set_clk(struct rk3399_cru *cru,
753 struct pll_div dpll_cfg;
755 /* IC ECO bug, need to set this register */
756 writel(0xc000c000, PMUSGRF_DDR_RGN_CON16);
758 /* clk_ddrc == DPLL = 24MHz / refdiv * fbdiv / postdiv1 / postdiv2 */
761 dpll_cfg = (struct pll_div)
762 {.refdiv = 1, .fbdiv = 50, .postdiv1 = 6, .postdiv2 = 1};
765 dpll_cfg = (struct pll_div)
766 {.refdiv = 2, .fbdiv = 100, .postdiv1 = 4, .postdiv2 = 1};
769 dpll_cfg = (struct pll_div)
770 {.refdiv = 2, .fbdiv = 111, .postdiv1 = 2, .postdiv2 = 1};
773 dpll_cfg = (struct pll_div)
774 {.refdiv = 1, .fbdiv = 100, .postdiv1 = 3, .postdiv2 = 1};
777 dpll_cfg = (struct pll_div)
778 {.refdiv = 1, .fbdiv = 116, .postdiv1 = 3, .postdiv2 = 1};
781 pr_err("Unsupported SDRAM frequency!,%ld\n", set_rate);
783 rkclk_set_pll(&cru->dpll_con[0], &dpll_cfg);
788 static ulong rk3399_saradc_get_clk(struct rk3399_cru *cru)
792 val = readl(&cru->clksel_con[26]);
793 div = bitfield_extract(val, CLK_SARADC_DIV_CON_SHIFT,
794 CLK_SARADC_DIV_CON_WIDTH);
796 return DIV_TO_RATE(OSC_HZ, div);
799 static ulong rk3399_saradc_set_clk(struct rk3399_cru *cru, uint hz)
803 src_clk_div = DIV_ROUND_UP(OSC_HZ, hz) - 1;
804 assert(src_clk_div < 128);
806 rk_clrsetreg(&cru->clksel_con[26],
807 CLK_SARADC_DIV_CON_MASK,
808 src_clk_div << CLK_SARADC_DIV_CON_SHIFT);
810 return rk3399_saradc_get_clk(cru);
813 static ulong rk3399_clk_get_rate(struct clk *clk)
815 struct rk3399_clk_priv *priv = dev_get_priv(clk->dev);
824 rate = rk3399_mmc_get_clk(priv->cru, clk->id);
832 rate = rk3399_i2c_get_clk(priv->cru, clk->id);
834 case SCLK_SPI0...SCLK_SPI5:
835 rate = rk3399_spi_get_clk(priv->cru, clk->id);
846 case PCLK_EFUSE1024NS:
849 rate = rk3399_saradc_get_clk(priv->cru);
858 static ulong rk3399_clk_set_rate(struct clk *clk, ulong rate)
860 struct rk3399_clk_priv *priv = dev_get_priv(clk->dev);
869 ret = rk3399_mmc_set_clk(priv->cru, clk->id, rate);
872 /* nothing to do, as this is an external clock */
881 ret = rk3399_i2c_set_clk(priv->cru, clk->id, rate);
883 case SCLK_SPI0...SCLK_SPI5:
884 ret = rk3399_spi_set_clk(priv->cru, clk->id, rate);
888 /* the PCLK gates for video are enabled by default */
892 ret = rk3399_vop_set_clk(priv->cru, clk->id, rate);
895 ret = rk3399_ddr_set_clk(priv->cru, rate);
897 case PCLK_EFUSE1024NS:
900 ret = rk3399_saradc_set_clk(priv->cru, rate);
909 static int rk3399_clk_enable(struct clk *clk)
919 debug("%s: unsupported clk %ld\n", __func__, clk->id);
923 static struct clk_ops rk3399_clk_ops = {
924 .get_rate = rk3399_clk_get_rate,
925 .set_rate = rk3399_clk_set_rate,
926 .enable = rk3399_clk_enable,
929 #ifdef CONFIG_SPL_BUILD
930 static void rkclk_init(struct rk3399_cru *cru)
936 rk3399_configure_cpu(cru, APLL_L_600_MHZ);
938 * some cru registers changed by bootrom, we'd better reset them to
939 * reset/default values described in TRM to avoid confusion in kernel.
940 * Please consider these three lines as a fix of bootrom bug.
942 rk_clrsetreg(&cru->clksel_con[12], 0xffff, 0x4101);
943 rk_clrsetreg(&cru->clksel_con[19], 0xffff, 0x033f);
944 rk_clrsetreg(&cru->clksel_con[56], 0x0003, 0x0003);
946 /* configure gpll cpll */
947 rkclk_set_pll(&cru->gpll_con[0], &gpll_init_cfg);
948 rkclk_set_pll(&cru->cpll_con[0], &cpll_init_cfg);
950 /* configure perihp aclk, hclk, pclk */
951 aclk_div = GPLL_HZ / PERIHP_ACLK_HZ - 1;
952 assert((aclk_div + 1) * PERIHP_ACLK_HZ == GPLL_HZ && aclk_div < 0x1f);
954 hclk_div = PERIHP_ACLK_HZ / PERIHP_HCLK_HZ - 1;
955 assert((hclk_div + 1) * PERIHP_HCLK_HZ ==
956 PERIHP_ACLK_HZ && (hclk_div < 0x4));
958 pclk_div = PERIHP_ACLK_HZ / PERIHP_PCLK_HZ - 1;
959 assert((pclk_div + 1) * PERIHP_PCLK_HZ ==
960 PERIHP_ACLK_HZ && (pclk_div < 0x7));
962 rk_clrsetreg(&cru->clksel_con[14],
963 PCLK_PERIHP_DIV_CON_MASK | HCLK_PERIHP_DIV_CON_MASK |
964 ACLK_PERIHP_PLL_SEL_MASK | ACLK_PERIHP_DIV_CON_MASK,
965 pclk_div << PCLK_PERIHP_DIV_CON_SHIFT |
966 hclk_div << HCLK_PERIHP_DIV_CON_SHIFT |
967 ACLK_PERIHP_PLL_SEL_GPLL << ACLK_PERIHP_PLL_SEL_SHIFT |
968 aclk_div << ACLK_PERIHP_DIV_CON_SHIFT);
970 /* configure perilp0 aclk, hclk, pclk */
971 aclk_div = GPLL_HZ / PERILP0_ACLK_HZ - 1;
972 assert((aclk_div + 1) * PERILP0_ACLK_HZ == GPLL_HZ && aclk_div < 0x1f);
974 hclk_div = PERILP0_ACLK_HZ / PERILP0_HCLK_HZ - 1;
975 assert((hclk_div + 1) * PERILP0_HCLK_HZ ==
976 PERILP0_ACLK_HZ && (hclk_div < 0x4));
978 pclk_div = PERILP0_ACLK_HZ / PERILP0_PCLK_HZ - 1;
979 assert((pclk_div + 1) * PERILP0_PCLK_HZ ==
980 PERILP0_ACLK_HZ && (pclk_div < 0x7));
982 rk_clrsetreg(&cru->clksel_con[23],
983 PCLK_PERILP0_DIV_CON_MASK | HCLK_PERILP0_DIV_CON_MASK |
984 ACLK_PERILP0_PLL_SEL_MASK | ACLK_PERILP0_DIV_CON_MASK,
985 pclk_div << PCLK_PERILP0_DIV_CON_SHIFT |
986 hclk_div << HCLK_PERILP0_DIV_CON_SHIFT |
987 ACLK_PERILP0_PLL_SEL_GPLL << ACLK_PERILP0_PLL_SEL_SHIFT |
988 aclk_div << ACLK_PERILP0_DIV_CON_SHIFT);
990 /* perilp1 hclk select gpll as source */
991 hclk_div = GPLL_HZ / PERILP1_HCLK_HZ - 1;
992 assert((hclk_div + 1) * PERILP1_HCLK_HZ ==
993 GPLL_HZ && (hclk_div < 0x1f));
995 pclk_div = PERILP1_HCLK_HZ / PERILP1_HCLK_HZ - 1;
996 assert((pclk_div + 1) * PERILP1_HCLK_HZ ==
997 PERILP1_HCLK_HZ && (hclk_div < 0x7));
999 rk_clrsetreg(&cru->clksel_con[25],
1000 PCLK_PERILP1_DIV_CON_MASK | HCLK_PERILP1_DIV_CON_MASK |
1001 HCLK_PERILP1_PLL_SEL_MASK,
1002 pclk_div << PCLK_PERILP1_DIV_CON_SHIFT |
1003 hclk_div << HCLK_PERILP1_DIV_CON_SHIFT |
1004 HCLK_PERILP1_PLL_SEL_GPLL << HCLK_PERILP1_PLL_SEL_SHIFT);
1008 static int rk3399_clk_probe(struct udevice *dev)
1010 #ifdef CONFIG_SPL_BUILD
1011 struct rk3399_clk_priv *priv = dev_get_priv(dev);
1013 #if CONFIG_IS_ENABLED(OF_PLATDATA)
1014 struct rk3399_clk_plat *plat = dev_get_platdata(dev);
1016 priv->cru = map_sysmem(plat->dtd.reg[0], plat->dtd.reg[1]);
1018 rkclk_init(priv->cru);
1023 static int rk3399_clk_ofdata_to_platdata(struct udevice *dev)
1025 #if !CONFIG_IS_ENABLED(OF_PLATDATA)
1026 struct rk3399_clk_priv *priv = dev_get_priv(dev);
1028 priv->cru = dev_read_addr_ptr(dev);
1033 static int rk3399_clk_bind(struct udevice *dev)
1036 struct udevice *sys_child;
1037 struct sysreset_reg *priv;
1039 /* The reset driver does not have a device node, so bind it here */
1040 ret = device_bind_driver(dev, "rockchip_sysreset", "sysreset",
1043 debug("Warning: No sysreset driver: ret=%d\n", ret);
1045 priv = malloc(sizeof(struct sysreset_reg));
1046 priv->glb_srst_fst_value = offsetof(struct rk3399_cru,
1047 glb_srst_fst_value);
1048 priv->glb_srst_snd_value = offsetof(struct rk3399_cru,
1049 glb_srst_snd_value);
1050 sys_child->priv = priv;
1056 static const struct udevice_id rk3399_clk_ids[] = {
1057 { .compatible = "rockchip,rk3399-cru" },
1061 U_BOOT_DRIVER(clk_rk3399) = {
1062 .name = "rockchip_rk3399_cru",
1064 .of_match = rk3399_clk_ids,
1065 .priv_auto_alloc_size = sizeof(struct rk3399_clk_priv),
1066 .ofdata_to_platdata = rk3399_clk_ofdata_to_platdata,
1067 .ops = &rk3399_clk_ops,
1068 .bind = rk3399_clk_bind,
1069 .probe = rk3399_clk_probe,
1070 #if CONFIG_IS_ENABLED(OF_PLATDATA)
1071 .platdata_auto_alloc_size = sizeof(struct rk3399_clk_plat),
1075 static ulong rk3399_i2c_get_pmuclk(struct rk3399_pmucru *pmucru, ulong clk_id)
1081 con = readl(&pmucru->pmucru_clksel[2]);
1082 div = I2C_CLK_DIV_VALUE(con, 0);
1085 con = readl(&pmucru->pmucru_clksel[3]);
1086 div = I2C_CLK_DIV_VALUE(con, 4);
1089 con = readl(&pmucru->pmucru_clksel[2]);
1090 div = I2C_CLK_DIV_VALUE(con, 8);
1093 printf("do not support this i2c bus\n");
1097 return DIV_TO_RATE(PPLL_HZ, div);
1100 static ulong rk3399_i2c_set_pmuclk(struct rk3399_pmucru *pmucru, ulong clk_id,
1105 src_clk_div = PPLL_HZ / hz;
1106 assert(src_clk_div - 1 < 127);
1110 rk_clrsetreg(&pmucru->pmucru_clksel[2], I2C_PMUCLK_REG_MASK(0),
1111 I2C_PMUCLK_REG_VALUE(0, src_clk_div));
1114 rk_clrsetreg(&pmucru->pmucru_clksel[3], I2C_PMUCLK_REG_MASK(4),
1115 I2C_PMUCLK_REG_VALUE(4, src_clk_div));
1118 rk_clrsetreg(&pmucru->pmucru_clksel[2], I2C_PMUCLK_REG_MASK(8),
1119 I2C_PMUCLK_REG_VALUE(8, src_clk_div));
1122 printf("do not support this i2c bus\n");
1126 return DIV_TO_RATE(PPLL_HZ, src_clk_div);
1129 static ulong rk3399_pwm_get_clk(struct rk3399_pmucru *pmucru)
1133 /* PWM closk rate is same as pclk_pmu */
1134 con = readl(&pmucru->pmucru_clksel[0]);
1135 div = con & PMU_PCLK_DIV_CON_MASK;
1137 return DIV_TO_RATE(PPLL_HZ, div);
1140 static ulong rk3399_pmuclk_get_rate(struct clk *clk)
1142 struct rk3399_pmuclk_priv *priv = dev_get_priv(clk->dev);
1146 case PCLK_RKPWM_PMU:
1147 rate = rk3399_pwm_get_clk(priv->pmucru);
1152 rate = rk3399_i2c_get_pmuclk(priv->pmucru, clk->id);
1161 static ulong rk3399_pmuclk_set_rate(struct clk *clk, ulong rate)
1163 struct rk3399_pmuclk_priv *priv = dev_get_priv(clk->dev);
1170 ret = rk3399_i2c_set_pmuclk(priv->pmucru, clk->id, rate);
1179 static struct clk_ops rk3399_pmuclk_ops = {
1180 .get_rate = rk3399_pmuclk_get_rate,
1181 .set_rate = rk3399_pmuclk_set_rate,
1184 #ifndef CONFIG_SPL_BUILD
1185 static void pmuclk_init(struct rk3399_pmucru *pmucru)
1189 /* configure pmu pll(ppll) */
1190 rkclk_set_pll(&pmucru->ppll_con[0], &ppll_init_cfg);
1192 /* configure pmu pclk */
1193 pclk_div = PPLL_HZ / PMU_PCLK_HZ - 1;
1194 rk_clrsetreg(&pmucru->pmucru_clksel[0],
1195 PMU_PCLK_DIV_CON_MASK,
1196 pclk_div << PMU_PCLK_DIV_CON_SHIFT);
1200 static int rk3399_pmuclk_probe(struct udevice *dev)
1202 #if CONFIG_IS_ENABLED(OF_PLATDATA) || !defined(CONFIG_SPL_BUILD)
1203 struct rk3399_pmuclk_priv *priv = dev_get_priv(dev);
1206 #if CONFIG_IS_ENABLED(OF_PLATDATA)
1207 struct rk3399_pmuclk_plat *plat = dev_get_platdata(dev);
1209 priv->pmucru = map_sysmem(plat->dtd.reg[0], plat->dtd.reg[1]);
1212 #ifndef CONFIG_SPL_BUILD
1213 pmuclk_init(priv->pmucru);
1218 static int rk3399_pmuclk_ofdata_to_platdata(struct udevice *dev)
1220 #if !CONFIG_IS_ENABLED(OF_PLATDATA)
1221 struct rk3399_pmuclk_priv *priv = dev_get_priv(dev);
1223 priv->pmucru = dev_read_addr_ptr(dev);
1228 static const struct udevice_id rk3399_pmuclk_ids[] = {
1229 { .compatible = "rockchip,rk3399-pmucru" },
1233 U_BOOT_DRIVER(rockchip_rk3399_pmuclk) = {
1234 .name = "rockchip_rk3399_pmucru",
1236 .of_match = rk3399_pmuclk_ids,
1237 .priv_auto_alloc_size = sizeof(struct rk3399_pmuclk_priv),
1238 .ofdata_to_platdata = rk3399_pmuclk_ofdata_to_platdata,
1239 .ops = &rk3399_pmuclk_ops,
1240 .probe = rk3399_pmuclk_probe,
1241 #if CONFIG_IS_ENABLED(OF_PLATDATA)
1242 .platdata_auto_alloc_size = sizeof(struct rk3399_pmuclk_plat),