2 * (C) Copyright 2013-2015
3 * NVIDIA Corporation <www.nvidia.com>
5 * SPDX-License-Identifier: GPL-2.0+
8 /* Tegra210 Clock control functions */
12 #include <asm/arch/clock.h>
13 #include <asm/arch/sysctr.h>
14 #include <asm/arch/tegra.h>
15 #include <asm/arch-tegra/clk_rst.h>
16 #include <asm/arch-tegra/timer.h>
21 * Clock types that we can use as a source. The Tegra210 has muxes for the
22 * peripheral clocks, and in most cases there are four options for the clock
23 * source. This gives us a clock 'type' and exploits what commonality exists
26 * Letters are obvious, except for T which means CLK_M, and S which means the
27 * clock derived from 32KHz. Beware that CLK_M (also called OSC in the
28 * datasheet) and PLL_M are different things. The former is the basic
29 * clock supplied to the SOC from an external oscillator. The latter is the
32 * See definitions in clock_id in the header file.
35 CLOCK_TYPE_AXPT, /* PLL_A, PLL_X, PLL_P, CLK_M */
36 CLOCK_TYPE_MCPA, /* and so on */
50 CLOCK_TYPE_PC2CC3M_T16, /* PC2CC3M_T, but w/16-bit divisor (I2C) */
53 CLOCK_TYPE_MCPTM2C2C3,
55 CLOCK_TYPE_AC2CC3P_TS2,
56 CLOCK_TYPE_PC01C00_C42C41TC40,
59 CLOCK_TYPE_NONE = -1, /* invalid clock type */
63 CLOCK_MAX_MUX = 8 /* number of source options for each clock */
67 * Clock source mux for each clock type. This just converts our enum into
68 * a list of mux sources for use by the code.
71 * The extra column in each clock source array is used to store the mask
72 * bits in its register for the source.
74 #define CLK(x) CLOCK_ID_ ## x
75 static enum clock_id clock_source[CLOCK_TYPE_COUNT][CLOCK_MAX_MUX+1] = {
76 { CLK(AUDIO), CLK(XCPU), CLK(PERIPH), CLK(OSC),
77 CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE),
79 { CLK(MEMORY), CLK(CGENERAL), CLK(PERIPH), CLK(AUDIO),
80 CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE),
82 { CLK(MEMORY), CLK(CGENERAL), CLK(PERIPH), CLK(OSC),
83 CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE),
85 { CLK(PERIPH), CLK(CGENERAL), CLK(MEMORY), CLK(NONE),
86 CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE),
88 { CLK(PERIPH), CLK(CGENERAL), CLK(MEMORY), CLK(OSC),
89 CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE),
91 { CLK(PERIPH), CLK(DISPLAY), CLK(CGENERAL), CLK(OSC),
92 CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE),
94 { CLK(AUDIO), CLK(CGENERAL), CLK(PERIPH), CLK(OSC),
95 CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE),
97 { CLK(AUDIO), CLK(SFROM32KHZ), CLK(PERIPH), CLK(OSC),
98 CLK(EPCI), CLK(NONE), CLK(NONE), CLK(NONE),
100 { CLK(PERIPH), CLK(MEMORY), CLK(DISPLAY), CLK(AUDIO),
101 CLK(CGENERAL), CLK(DISPLAY2), CLK(OSC), CLK(NONE),
103 { CLK(PERIPH), CLK(CGENERAL), CLK(SFROM32KHZ), CLK(OSC),
104 CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE),
107 { CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE),
108 CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE),
111 /* Additional clock types on Tegra114+ */
112 /* CLOCK_TYPE_PC2CC3M */
113 { CLK(PERIPH), CLK(CGENERAL2), CLK(CGENERAL), CLK(CGENERAL3),
114 CLK(MEMORY), CLK(NONE), CLK(NONE), CLK(NONE),
116 /* CLOCK_TYPE_PC2CC3S_T */
117 { CLK(PERIPH), CLK(CGENERAL2), CLK(CGENERAL), CLK(CGENERAL3),
118 CLK(SFROM32KHZ), CLK(NONE), CLK(OSC), CLK(NONE),
120 /* CLOCK_TYPE_PC2CC3M_T */
121 { CLK(PERIPH), CLK(CGENERAL2), CLK(CGENERAL), CLK(CGENERAL3),
122 CLK(MEMORY), CLK(NONE), CLK(OSC), CLK(NONE),
124 /* CLOCK_TYPE_PC2CC3M_T, w/16-bit divisor (I2C) */
125 { CLK(PERIPH), CLK(CGENERAL2), CLK(CGENERAL), CLK(CGENERAL3),
126 CLK(MEMORY), CLK(NONE), CLK(OSC), CLK(NONE),
128 /* CLOCK_TYPE_MC2CC3P_A */
129 { CLK(MEMORY), CLK(CGENERAL2), CLK(CGENERAL), CLK(CGENERAL3),
130 CLK(PERIPH), CLK(NONE), CLK(AUDIO), CLK(NONE),
133 { CLK(MEMORY), CLK(NONE), CLK(NONE), CLK(NONE),
134 CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE),
136 /* CLOCK_TYPE_MCPTM2C2C3 */
137 { CLK(MEMORY), CLK(CGENERAL), CLK(PERIPH), CLK(OSC),
138 CLK(MEMORY2), CLK(CGENERAL2), CLK(CGENERAL3), CLK(NONE),
140 /* CLOCK_TYPE_PC2CC3T_S */
141 { CLK(PERIPH), CLK(CGENERAL2), CLK(CGENERAL), CLK(CGENERAL3),
142 CLK(OSC), CLK(NONE), CLK(SFROM32KHZ), CLK(NONE),
144 /* CLOCK_TYPE_AC2CC3P_TS2 */
145 { CLK(AUDIO), CLK(CGENERAL2), CLK(CGENERAL), CLK(CGENERAL3),
146 CLK(PERIPH), CLK(NONE), CLK(OSC), CLK(SRC2),
148 /* CLOCK_TYPE_PC01C00_C42C41TC40 */
149 { CLK(PERIPH), CLK(CGENERAL_1), CLK(CGENERAL_0), CLK(NONE),
150 CLK(CGENERAL4_2), CLK(CGENERAL4_1), CLK(OSC), CLK(CGENERAL4_0),
155 * Clock type for each peripheral clock source. We put the name in each
156 * record just so it is easy to match things up
158 #define TYPE(name, type) type
159 static enum clock_type_id clock_periph_type[PERIPHC_COUNT] = {
161 TYPE(PERIPHC_I2S2, CLOCK_TYPE_AXPT),
162 TYPE(PERIPHC_I2S3, CLOCK_TYPE_AXPT),
163 TYPE(PERIPHC_SPDIF_OUT, CLOCK_TYPE_AXPT),
164 TYPE(PERIPHC_SPDIF_IN, CLOCK_TYPE_PC2CC3M),
165 TYPE(PERIPHC_PWM, CLOCK_TYPE_PC2CC3S_T),
166 TYPE(PERIPHC_05h, CLOCK_TYPE_NONE),
167 TYPE(PERIPHC_SBC2, CLOCK_TYPE_PC2CC3M_T),
168 TYPE(PERIPHC_SBC3, CLOCK_TYPE_PC2CC3M_T),
171 TYPE(PERIPHC_08h, CLOCK_TYPE_NONE),
172 TYPE(PERIPHC_I2C1, CLOCK_TYPE_PC2CC3M_T16),
173 TYPE(PERIPHC_I2C5, CLOCK_TYPE_PC2CC3M_T16),
174 TYPE(PERIPHC_0bh, CLOCK_TYPE_NONE),
175 TYPE(PERIPHC_0ch, CLOCK_TYPE_NONE),
176 TYPE(PERIPHC_SBC1, CLOCK_TYPE_PC2CC3M_T),
177 TYPE(PERIPHC_DISP1, CLOCK_TYPE_PMDACD2T),
178 TYPE(PERIPHC_DISP2, CLOCK_TYPE_PMDACD2T),
181 TYPE(PERIPHC_10h, CLOCK_TYPE_NONE),
182 TYPE(PERIPHC_11h, CLOCK_TYPE_NONE),
183 TYPE(PERIPHC_VI, CLOCK_TYPE_MC2CC3P_A),
184 TYPE(PERIPHC_13h, CLOCK_TYPE_NONE),
185 TYPE(PERIPHC_SDMMC1, CLOCK_TYPE_PC2CC3M_T),
186 TYPE(PERIPHC_SDMMC2, CLOCK_TYPE_PC2CC3M_T),
187 TYPE(PERIPHC_16h, CLOCK_TYPE_NONE),
188 TYPE(PERIPHC_17h, CLOCK_TYPE_NONE),
191 TYPE(PERIPHC_18h, CLOCK_TYPE_NONE),
192 TYPE(PERIPHC_SDMMC4, CLOCK_TYPE_PC2CC3M_T),
193 TYPE(PERIPHC_VFIR, CLOCK_TYPE_PC2CC3M_T),
194 TYPE(PERIPHC_1Bh, CLOCK_TYPE_NONE),
195 TYPE(PERIPHC_1Ch, CLOCK_TYPE_NONE),
196 TYPE(PERIPHC_HSI, CLOCK_TYPE_PC2CC3M_T),
197 TYPE(PERIPHC_UART1, CLOCK_TYPE_PC2CC3M_T),
198 TYPE(PERIPHC_UART2, CLOCK_TYPE_PC2CC3M_T),
201 TYPE(PERIPHC_HOST1X, CLOCK_TYPE_MC2CC3P_A),
202 TYPE(PERIPHC_21h, CLOCK_TYPE_NONE),
203 TYPE(PERIPHC_22h, CLOCK_TYPE_NONE),
204 TYPE(PERIPHC_23h, CLOCK_TYPE_NONE),
205 TYPE(PERIPHC_24h, CLOCK_TYPE_NONE),
206 TYPE(PERIPHC_25h, CLOCK_TYPE_NONE),
207 TYPE(PERIPHC_I2C2, CLOCK_TYPE_PC2CC3M_T16),
208 TYPE(PERIPHC_EMC, CLOCK_TYPE_MCPTM2C2C3),
211 TYPE(PERIPHC_UART3, CLOCK_TYPE_PC2CC3M_T),
212 TYPE(PERIPHC_29h, CLOCK_TYPE_NONE),
213 TYPE(PERIPHC_VI_SENSOR, CLOCK_TYPE_MC2CC3P_A),
214 TYPE(PERIPHC_2bh, CLOCK_TYPE_NONE),
215 TYPE(PERIPHC_2ch, CLOCK_TYPE_NONE),
216 TYPE(PERIPHC_SBC4, CLOCK_TYPE_PC2CC3M_T),
217 TYPE(PERIPHC_I2C3, CLOCK_TYPE_PC2CC3M_T16),
218 TYPE(PERIPHC_SDMMC3, CLOCK_TYPE_PC2CC3M_T),
221 TYPE(PERIPHC_UART4, CLOCK_TYPE_PC2CC3M_T),
222 TYPE(PERIPHC_UART5, CLOCK_TYPE_PC2CC3M_T),
223 TYPE(PERIPHC_VDE, CLOCK_TYPE_PC2CC3M_T),
224 TYPE(PERIPHC_OWR, CLOCK_TYPE_PC2CC3M_T),
225 TYPE(PERIPHC_NOR, CLOCK_TYPE_PC2CC3M_T),
226 TYPE(PERIPHC_CSITE, CLOCK_TYPE_PC2CC3M_T),
227 TYPE(PERIPHC_I2S1, CLOCK_TYPE_AXPT),
228 TYPE(PERIPHC_DTV, CLOCK_TYPE_NONE),
231 TYPE(PERIPHC_38h, CLOCK_TYPE_NONE),
232 TYPE(PERIPHC_39h, CLOCK_TYPE_NONE),
233 TYPE(PERIPHC_3ah, CLOCK_TYPE_NONE),
234 TYPE(PERIPHC_3bh, CLOCK_TYPE_NONE),
235 TYPE(PERIPHC_MSENC, CLOCK_TYPE_MC2CC3P_A),
236 TYPE(PERIPHC_TSEC, CLOCK_TYPE_PC2CC3M_T),
237 TYPE(PERIPHC_3eh, CLOCK_TYPE_NONE),
238 TYPE(PERIPHC_OSC, CLOCK_TYPE_NONE),
241 TYPE(PERIPHC_40h, CLOCK_TYPE_NONE), /* start with 0x3b0 */
242 TYPE(PERIPHC_MSELECT, CLOCK_TYPE_PC2CC3M_T),
243 TYPE(PERIPHC_TSENSOR, CLOCK_TYPE_PC2CC3T_S),
244 TYPE(PERIPHC_I2S4, CLOCK_TYPE_AXPT),
245 TYPE(PERIPHC_I2S5, CLOCK_TYPE_AXPT),
246 TYPE(PERIPHC_I2C4, CLOCK_TYPE_PC2CC3M_T16),
247 TYPE(PERIPHC_SBC5, CLOCK_TYPE_PC2CC3M_T),
248 TYPE(PERIPHC_SBC6, CLOCK_TYPE_PC2CC3M_T),
251 TYPE(PERIPHC_AUDIO, CLOCK_TYPE_AC2CC3P_TS2),
252 TYPE(PERIPHC_49h, CLOCK_TYPE_NONE),
253 TYPE(PERIPHC_4ah, CLOCK_TYPE_NONE),
254 TYPE(PERIPHC_4bh, CLOCK_TYPE_NONE),
255 TYPE(PERIPHC_4ch, CLOCK_TYPE_NONE),
256 TYPE(PERIPHC_HDA2CODEC2X, CLOCK_TYPE_PC2CC3M_T),
257 TYPE(PERIPHC_ACTMON, CLOCK_TYPE_PC2CC3S_T),
258 TYPE(PERIPHC_EXTPERIPH1, CLOCK_TYPE_ASPTE),
261 TYPE(PERIPHC_EXTPERIPH2, CLOCK_TYPE_ASPTE),
262 TYPE(PERIPHC_EXTPERIPH3, CLOCK_TYPE_ASPTE),
263 TYPE(PERIPHC_52h, CLOCK_TYPE_NONE),
264 TYPE(PERIPHC_I2CSLOW, CLOCK_TYPE_PC2CC3S_T),
265 TYPE(PERIPHC_SYS, CLOCK_TYPE_NONE),
266 TYPE(PERIPHC_55h, CLOCK_TYPE_NONE),
267 TYPE(PERIPHC_56h, CLOCK_TYPE_NONE),
268 TYPE(PERIPHC_57h, CLOCK_TYPE_NONE),
271 TYPE(PERIPHC_58h, CLOCK_TYPE_NONE),
272 TYPE(PERIPHC_59h, CLOCK_TYPE_NONE),
273 TYPE(PERIPHC_5ah, CLOCK_TYPE_NONE),
274 TYPE(PERIPHC_5bh, CLOCK_TYPE_NONE),
275 TYPE(PERIPHC_SATAOOB, CLOCK_TYPE_PCMT),
276 TYPE(PERIPHC_SATA, CLOCK_TYPE_PCMT),
277 TYPE(PERIPHC_HDA, CLOCK_TYPE_PC2CC3M_T),
278 TYPE(PERIPHC_5fh, CLOCK_TYPE_NONE),
281 TYPE(PERIPHC_XUSB_CORE_HOST, CLOCK_TYPE_NONE),
282 TYPE(PERIPHC_XUSB_FALCON, CLOCK_TYPE_NONE),
283 TYPE(PERIPHC_XUSB_FS, CLOCK_TYPE_NONE),
284 TYPE(PERIPHC_XUSB_CORE_DEV, CLOCK_TYPE_NONE),
285 TYPE(PERIPHC_XUSB_SS, CLOCK_TYPE_NONE),
286 TYPE(PERIPHC_CILAB, CLOCK_TYPE_NONE),
287 TYPE(PERIPHC_CILCD, CLOCK_TYPE_NONE),
288 TYPE(PERIPHC_CILE, CLOCK_TYPE_NONE),
291 TYPE(PERIPHC_DSIA_LP, CLOCK_TYPE_NONE),
292 TYPE(PERIPHC_DSIB_LP, CLOCK_TYPE_NONE),
293 TYPE(PERIPHC_ENTROPY, CLOCK_TYPE_NONE),
294 TYPE(PERIPHC_DVFS_REF, CLOCK_TYPE_NONE),
295 TYPE(PERIPHC_DVFS_SOC, CLOCK_TYPE_NONE),
296 TYPE(PERIPHC_TRACECLKIN, CLOCK_TYPE_NONE),
297 TYPE(PERIPHC_6eh, CLOCK_TYPE_NONE),
298 TYPE(PERIPHC_6fh, CLOCK_TYPE_NONE),
301 TYPE(PERIPHC_EMC_LATENCY, CLOCK_TYPE_NONE),
302 TYPE(PERIPHC_SOC_THERM, CLOCK_TYPE_NONE),
303 TYPE(PERIPHC_72h, CLOCK_TYPE_NONE),
304 TYPE(PERIPHC_73h, CLOCK_TYPE_NONE),
305 TYPE(PERIPHC_74h, CLOCK_TYPE_NONE),
306 TYPE(PERIPHC_75h, CLOCK_TYPE_NONE),
307 TYPE(PERIPHC_VI_SENSOR2, CLOCK_TYPE_NONE),
308 TYPE(PERIPHC_I2C6, CLOCK_TYPE_PC2CC3M_T16),
311 TYPE(PERIPHC_78h, CLOCK_TYPE_NONE),
312 TYPE(PERIPHC_EMC_DLL, CLOCK_TYPE_MCPTM2C2C3),
313 TYPE(PERIPHC_7ah, CLOCK_TYPE_NONE),
314 TYPE(PERIPHC_CLK72MHZ, CLOCK_TYPE_NONE),
315 TYPE(PERIPHC_7ch, CLOCK_TYPE_NONE),
316 TYPE(PERIPHC_7dh, CLOCK_TYPE_NONE),
317 TYPE(PERIPHC_VIC, CLOCK_TYPE_NONE),
318 TYPE(PERIPHC_7Fh, CLOCK_TYPE_NONE),
321 TYPE(PERIPHC_SDMMC_LEGACY_TM, CLOCK_TYPE_NONE),
322 TYPE(PERIPHC_NVDEC, CLOCK_TYPE_NONE),
323 TYPE(PERIPHC_NVJPG, CLOCK_TYPE_NONE),
324 TYPE(PERIPHC_NVENC, CLOCK_TYPE_NONE),
325 TYPE(PERIPHC_84h, CLOCK_TYPE_NONE),
326 TYPE(PERIPHC_85h, CLOCK_TYPE_NONE),
327 TYPE(PERIPHC_86h, CLOCK_TYPE_NONE),
328 TYPE(PERIPHC_87h, CLOCK_TYPE_NONE),
331 TYPE(PERIPHC_88h, CLOCK_TYPE_NONE),
332 TYPE(PERIPHC_89h, CLOCK_TYPE_NONE),
333 TYPE(PERIPHC_DMIC3, CLOCK_TYPE_NONE),
334 TYPE(PERIPHC_APE, CLOCK_TYPE_NONE),
335 TYPE(PERIPHC_QSPI, CLOCK_TYPE_PC01C00_C42C41TC40),
336 TYPE(PERIPHC_VI_I2C, CLOCK_TYPE_NONE),
337 TYPE(PERIPHC_USB2_HSIC_TRK, CLOCK_TYPE_NONE),
338 TYPE(PERIPHC_PEX_SATA_USB_RX_BYP, CLOCK_TYPE_NONE),
341 TYPE(PERIPHC_MAUD, CLOCK_TYPE_NONE),
342 TYPE(PERIPHC_TSECB, CLOCK_TYPE_NONE),
346 * This array translates a periph_id to a periphc_internal_id
348 * Not present/matched up:
349 * uint vi_sensor; _VI_SENSOR_0, 0x1A8
350 * SPDIF - which is both 0x08 and 0x0c
353 #define NONE(name) (-1)
354 #define OFFSET(name, value) PERIPHC_ ## name
355 #define INTERNAL_ID(id) (id & 0x000000ff)
356 static s8 periph_id_to_internal_id[PERIPH_ID_COUNT] = {
365 PERIPHC_UART2, /* and vfir 0x68 */
397 /* Middle word: 63:32 */
409 PERIPHC_SBC1, /* SBCx = SPIx */
437 /* Upper word 95:64 */
597 /* Y: 192 (192 - 223) */
599 PERIPHC_SDMMC_LEGACY_TM,
603 PERIPHC_DMIC3, /* 197 */
604 PERIPHC_APE, /* 198 */
618 PERIPHC_VI_I2C, /* 208 */
621 PERIPHC_QSPI, /* 211 */
631 PERIPHC_NVENC, /* 219 */
639 * PLL divider shift/mask tables for all PLL IDs.
641 struct clk_pll_info tegra_pll_info_table[CLOCK_ID_PLL_COUNT] = {
643 * NOTE: If kcp_mask/kvco_mask == 0, they're not used in that PLL (PLLC, etc.)
644 * If lock_ena or lock_det are >31, they're not used in that PLL (PLLC, etc.)
646 { .m_shift = 0, .m_mask = 0xFF, .n_shift = 10, .n_mask = 0xFF, .p_shift = 20, .p_mask = 0x1F,
647 .lock_ena = 32, .lock_det = 27, .kcp_shift = 0, .kcp_mask = 0, .kvco_shift = 0, .kvco_mask = 0 }, /* PLLC */
648 { .m_shift = 0, .m_mask = 0xFF, .n_shift = 8, .n_mask = 0xFF, .p_shift = 20, .p_mask = 0x1F,
649 .lock_ena = 4, .lock_det = 27, .kcp_shift = 1, .kcp_mask = 3, .kvco_shift = 0, .kvco_mask = 1 }, /* PLLM */
650 { .m_shift = 0, .m_mask = 0xFF, .n_shift = 10, .n_mask = 0xFF, .p_shift = 20, .p_mask = 0x1F,
651 .lock_ena = 18, .lock_det = 27, .kcp_shift = 0, .kcp_mask = 3, .kvco_shift = 2, .kvco_mask = 1 }, /* PLLP */
652 { .m_shift = 0, .m_mask = 0xFF, .n_shift = 8, .n_mask = 0xFF, .p_shift = 20, .p_mask = 0x1F,
653 .lock_ena = 28, .lock_det = 27, .kcp_shift = 25, .kcp_mask = 3, .kvco_shift = 24, .kvco_mask = 1 }, /* PLLA */
654 { .m_shift = 0, .m_mask = 0xFF, .n_shift = 8, .n_mask = 0xFF, .p_shift = 16, .p_mask = 0x1F,
655 .lock_ena = 29, .lock_det = 27, .kcp_shift = 25, .kcp_mask = 3, .kvco_shift = 24, .kvco_mask = 1 }, /* PLLU */
656 { .m_shift = 0, .m_mask = 0xFF, .n_shift = 11, .n_mask = 0xFF, .p_shift = 20, .p_mask = 0x07,
657 .lock_ena = 18, .lock_det = 27, .kcp_shift = 23, .kcp_mask = 3, .kvco_shift = 22, .kvco_mask = 1 }, /* PLLD */
658 { .m_shift = 0, .m_mask = 0xFF, .n_shift = 8, .n_mask = 0xFF, .p_shift = 20, .p_mask = 0x1F,
659 .lock_ena = 18, .lock_det = 27, .kcp_shift = 1, .kcp_mask = 3, .kvco_shift = 0, .kvco_mask = 1 }, /* PLLX */
660 { .m_shift = 0, .m_mask = 0xFF, .n_shift = 8, .n_mask = 0xFF, .p_shift = 0, .p_mask = 0,
661 .lock_ena = 9, .lock_det = 11, .kcp_shift = 6, .kcp_mask = 3, .kvco_shift = 0, .kvco_mask = 1 }, /* PLLE */
662 { .m_shift = 0, .m_mask = 0, .n_shift = 0, .n_mask = 0, .p_shift = 0, .p_mask = 0,
663 .lock_ena = 0, .lock_det = 0, .kcp_shift = 0, .kcp_mask = 0, .kvco_shift = 0, .kvco_mask = 0 }, /* PLLS (gone)*/
664 { .m_shift = 0, .m_mask = 0xFF, .n_shift = 8, .n_mask = 0xFF, .p_shift = 19, .p_mask = 0x1F,
665 .lock_ena = 30, .lock_det = 27, .kcp_shift = 25, .kcp_mask = 3, .kvco_shift = 24, .kvco_mask = 1 }, /* PLLDP */
669 * Get the oscillator frequency, from the corresponding hardware configuration
670 * field. Note that Tegra30+ support 3 new higher freqs, but we map back
671 * to the old T20 freqs. Support for the higher oscillators is TBD.
673 enum clock_osc_freq clock_get_osc_freq(void)
675 struct clk_rst_ctlr *clkrst =
676 (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE;
679 reg = readl(&clkrst->crc_osc_ctrl);
680 reg = (reg & OSC_FREQ_MASK) >> OSC_FREQ_SHIFT;
682 * 0 = 13MHz, 1 = 16.8MHz, 4 = 19.2MHz, 5 = 38.4MHz,
683 * 8 = 12MHz, 9 = 48MHz, 12 = 26MHz
686 debug("OSC_FREQ is 38.4MHz (%d) ...\n", reg);
687 /* Map it to the 5th CLOCK_OSC_ enum, i.e. 4 */
692 * Map to most common (T20) freqs (except 38.4, handled above):
693 * 13/16.8 = 0, 19.2 = 1, 12/48 = 2, 26 = 3
698 /* Returns a pointer to the clock source register for a peripheral */
699 u32 *get_periph_source_reg(enum periph_id periph_id)
701 struct clk_rst_ctlr *clkrst =
702 (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE;
703 enum periphc_internal_id internal_id;
705 /* Coresight is a special case */
706 if (periph_id == PERIPH_ID_CSI)
707 return &clkrst->crc_clk_src[PERIPH_ID_CSI+1];
709 assert(periph_id >= PERIPH_ID_FIRST && periph_id < PERIPH_ID_COUNT);
710 internal_id = INTERNAL_ID(periph_id_to_internal_id[periph_id]);
711 assert(internal_id != -1);
713 if (internal_id < PERIPHC_VW_FIRST)
715 return &clkrst->crc_clk_src[internal_id];
717 if (internal_id < PERIPHC_X_FIRST) {
719 internal_id -= PERIPHC_VW_FIRST;
720 return &clkrst->crc_clk_src_vw[internal_id];
723 if (internal_id < PERIPHC_Y_FIRST) {
725 internal_id -= PERIPHC_X_FIRST;
726 return &clkrst->crc_clk_src_x[internal_id];
730 internal_id -= PERIPHC_Y_FIRST;
731 return &clkrst->crc_clk_src_y[internal_id];
735 * Given a peripheral ID and the required source clock, this returns which
736 * value should be programmed into the source mux for that peripheral.
738 * There is special code here to handle the one source type with 5 sources.
740 * @param periph_id peripheral to start
741 * @param source PLL id of required parent clock
742 * @param mux_bits Set to number of bits in mux register: 2 or 4
743 * @param divider_bits Set to number of divider bits (8 or 16)
744 * @return mux value (0-4, or -1 if not found)
746 int get_periph_clock_source(enum periph_id periph_id,
747 enum clock_id parent, int *mux_bits, int *divider_bits)
749 enum clock_type_id type;
750 enum periphc_internal_id internal_id;
753 assert(clock_periph_id_isvalid(periph_id));
755 internal_id = INTERNAL_ID(periph_id_to_internal_id[periph_id]);
756 assert(periphc_internal_id_isvalid(internal_id));
758 type = clock_periph_type[internal_id];
759 assert(clock_type_id_isvalid(type));
761 *mux_bits = clock_source[type][CLOCK_MAX_MUX];
763 if (type == CLOCK_TYPE_PC2CC3M_T16)
768 for (mux = 0; mux < CLOCK_MAX_MUX; mux++)
769 if (clock_source[type][mux] == parent)
772 /* if we get here, either us or the caller has made a mistake */
773 printf("Caller requested bad clock: periph=%d, parent=%d\n", periph_id,
778 void clock_set_enable(enum periph_id periph_id, int enable)
780 struct clk_rst_ctlr *clkrst =
781 (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE;
785 /* Enable/disable the clock to this peripheral */
786 assert(clock_periph_id_isvalid(periph_id));
787 if ((int)periph_id < (int)PERIPH_ID_VW_FIRST)
788 clk = &clkrst->crc_clk_out_enb[PERIPH_REG(periph_id)];
789 else if ((int)periph_id < (int)PERIPH_ID_X_FIRST)
790 clk = &clkrst->crc_clk_out_enb_vw[PERIPH_REG(periph_id)];
791 else if ((int)periph_id < (int)PERIPH_ID_Y_FIRST)
792 clk = &clkrst->crc_clk_out_enb_x;
794 clk = &clkrst->crc_clk_out_enb_y;
798 reg |= PERIPH_MASK(periph_id);
800 reg &= ~PERIPH_MASK(periph_id);
804 void reset_set_enable(enum periph_id periph_id, int enable)
806 struct clk_rst_ctlr *clkrst =
807 (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE;
811 /* Enable/disable reset to the peripheral */
812 assert(clock_periph_id_isvalid(periph_id));
813 if (periph_id < PERIPH_ID_VW_FIRST)
814 reset = &clkrst->crc_rst_dev[PERIPH_REG(periph_id)];
815 else if ((int)periph_id < (int)PERIPH_ID_X_FIRST)
816 reset = &clkrst->crc_rst_dev_vw[PERIPH_REG(periph_id)];
817 else if ((int)periph_id < (int)PERIPH_ID_Y_FIRST)
818 reset = &clkrst->crc_rst_devices_x;
820 reset = &clkrst->crc_rst_devices_y;
824 reg |= PERIPH_MASK(periph_id);
826 reg &= ~PERIPH_MASK(periph_id);
830 #ifdef CONFIG_OF_CONTROL
832 * Convert a device tree clock ID to our peripheral ID. They are mostly
833 * the same but we are very cautious so we check that a valid clock ID is
836 * @param clk_id Clock ID according to tegra210 device tree binding
837 * @return peripheral ID, or PERIPH_ID_NONE if the clock ID is invalid
839 enum periph_id clk_id_to_periph_id(int clk_id)
841 if (clk_id > PERIPH_ID_COUNT)
842 return PERIPH_ID_NONE;
845 case PERIPH_ID_RESERVED4:
846 case PERIPH_ID_RESERVED25:
847 case PERIPH_ID_RESERVED35:
848 case PERIPH_ID_RESERVED36:
849 case PERIPH_ID_RESERVED38:
850 case PERIPH_ID_RESERVED43:
851 case PERIPH_ID_RESERVED49:
852 case PERIPH_ID_RESERVED53:
853 case PERIPH_ID_RESERVED64:
854 case PERIPH_ID_RESERVED84:
855 case PERIPH_ID_RESERVED85:
856 case PERIPH_ID_RESERVED86:
857 case PERIPH_ID_RESERVED88:
858 case PERIPH_ID_RESERVED90:
859 case PERIPH_ID_RESERVED92:
860 case PERIPH_ID_RESERVED93:
861 case PERIPH_ID_RESERVED94:
862 case PERIPH_ID_V_RESERVED2:
863 case PERIPH_ID_V_RESERVED4:
864 case PERIPH_ID_V_RESERVED17:
865 case PERIPH_ID_V_RESERVED18:
866 case PERIPH_ID_V_RESERVED19:
867 case PERIPH_ID_V_RESERVED20:
868 case PERIPH_ID_V_RESERVED21:
869 case PERIPH_ID_V_RESERVED22:
870 case PERIPH_ID_W_RESERVED2:
871 case PERIPH_ID_W_RESERVED3:
872 case PERIPH_ID_W_RESERVED4:
873 case PERIPH_ID_W_RESERVED5:
874 case PERIPH_ID_W_RESERVED6:
875 case PERIPH_ID_W_RESERVED7:
876 case PERIPH_ID_W_RESERVED9:
877 case PERIPH_ID_W_RESERVED10:
878 case PERIPH_ID_W_RESERVED11:
879 case PERIPH_ID_W_RESERVED12:
880 case PERIPH_ID_W_RESERVED13:
881 case PERIPH_ID_W_RESERVED15:
882 case PERIPH_ID_W_RESERVED16:
883 case PERIPH_ID_W_RESERVED17:
884 case PERIPH_ID_W_RESERVED18:
885 case PERIPH_ID_W_RESERVED19:
886 case PERIPH_ID_W_RESERVED20:
887 case PERIPH_ID_W_RESERVED23:
888 case PERIPH_ID_W_RESERVED29:
889 case PERIPH_ID_W_RESERVED30:
890 case PERIPH_ID_W_RESERVED31:
891 return PERIPH_ID_NONE;
896 #endif /* CONFIG_OF_CONTROL */
899 * T210 redefines PLLP_OUT2 as PLLP_VCO/DIVP, so do different OUT1-4 setup here.
900 * PLLP_BASE/MISC/etc. is already set up for 408MHz in the BootROM.
902 void tegra210_setup_pllp(void)
904 struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE;
907 /* Set PLLP_OUT1, 3 & 4 freqs to 9.6, 102 & 204MHz */
910 /* Assert RSTN before enable */
911 reg = PLLP_OUT1_RSTN_EN;
912 writel(reg, &clkrst->crc_pll[CLOCK_ID_PERIPH].pll_out[0]);
913 /* Set divisor and reenable */
914 reg = (IN_408_OUT_9_6_DIVISOR << PLLP_OUT1_RATIO)
915 | PLLP_OUT1_OVR | PLLP_OUT1_CLKEN | PLLP_OUT1_RSTN_DIS;
916 writel(reg, &clkrst->crc_pll[CLOCK_ID_PERIPH].pll_out[0]);
919 /* Assert RSTN before enable */
920 reg = PLLP_OUT4_RSTN_EN | PLLP_OUT3_RSTN_EN;
921 writel(reg, &clkrst->crc_pll[CLOCK_ID_PERIPH].pll_out[1]);
922 /* Set divisor and reenable */
923 reg = (IN_408_OUT_204_DIVISOR << PLLP_OUT4_RATIO)
924 | PLLP_OUT4_OVR | PLLP_OUT4_CLKEN | PLLP_OUT4_RSTN_DIS
925 | (IN_408_OUT_102_DIVISOR << PLLP_OUT3_RATIO)
926 | PLLP_OUT3_OVR | PLLP_OUT3_CLKEN | PLLP_OUT3_RSTN_DIS;
927 writel(reg, &clkrst->crc_pll[CLOCK_ID_PERIPH].pll_out[1]);
930 * NOTE: If you want to change PLLP_OUT2 away from 204MHz,
931 * you can change PLLP_BASE DIVP here. Currently defaults
932 * to 1, which is 2^1, or 2, so PLLP_OUT2 is 204MHz.
933 * See Table 13 in section 5.1.4 in T210 TRM for more info.
937 void clock_early_init(void)
939 struct clk_rst_ctlr *clkrst =
940 (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE;
941 struct clk_pll_info *pllinfo = &tegra_pll_info_table[CLOCK_ID_DISPLAY];
944 tegra210_setup_pllp();
947 * PLLC output frequency set to 600Mhz
948 * PLLD output frequency set to 925Mhz
950 switch (clock_get_osc_freq()) {
951 case CLOCK_OSC_FREQ_12_0: /* OSC is 12Mhz */
952 clock_set_rate(CLOCK_ID_CGENERAL, 600, 12, 0, 8);
953 clock_set_rate(CLOCK_ID_DISPLAY, 925, 12, 0, 12);
956 case CLOCK_OSC_FREQ_26_0: /* OSC is 26Mhz */
957 clock_set_rate(CLOCK_ID_CGENERAL, 600, 26, 0, 8);
958 clock_set_rate(CLOCK_ID_DISPLAY, 925, 26, 0, 12);
961 case CLOCK_OSC_FREQ_13_0: /* OSC is 13Mhz */
962 clock_set_rate(CLOCK_ID_CGENERAL, 600, 13, 0, 8);
963 clock_set_rate(CLOCK_ID_DISPLAY, 925, 13, 0, 12);
965 case CLOCK_OSC_FREQ_19_2:
966 clock_set_rate(CLOCK_ID_CGENERAL, 125, 4, 0, 0);
967 clock_set_rate(CLOCK_ID_DISPLAY, 96, 2, 0, 12);
969 case CLOCK_OSC_FREQ_38_4:
970 clock_set_rate(CLOCK_ID_CGENERAL, 125, 8, 0, 0);
971 clock_set_rate(CLOCK_ID_DISPLAY, 96, 4, 0, 0);
975 * These are not supported. It is too early to print a
976 * message and the UART likely won't work anyway due to the
977 * oscillator being wrong.
982 /* PLLC_MISC1: Turn IDDQ off. NOTE: T210 PLLC_MISC_1 maps to pll_misc */
983 clrbits_le32(&clkrst->crc_pll[CLOCK_ID_CGENERAL].pll_misc,
988 * PLLC_MISC: Take PLLC out of reset. NOTE: T210 PLLC_MISC maps
991 clrbits_le32(&clkrst->crc_pll[CLOCK_ID_CGENERAL].pll_out[1],
995 /* PLLD_MISC: Set CLKENABLE and LOCK_DETECT bits */
996 data = (1 << PLLD_ENABLE_CLK) | (1 << pllinfo->lock_ena);
997 writel(data, &clkrst->crc_pll[CLOCK_ID_DISPLAY].pll_misc);
1001 unsigned int clk_m_get_rate(unsigned parent_rate)
1003 struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE;
1006 value = readl(&clkrst->crc_spare_reg0);
1007 div = ((value >> 2) & 0x3) + 1;
1009 return parent_rate / div;
1012 void arch_timer_init(void)
1014 struct sysctr_ctlr *sysctr = (struct sysctr_ctlr *)NV_PA_TSC_BASE;
1017 freq = clock_get_rate(CLOCK_ID_CLK_M);
1018 debug("%s: clk_m freq is %dHz [0x%08X]\n", __func__, freq, freq);
1020 if (current_el() == 3)
1021 asm("msr cntfrq_el0, %0\n" : : "r" (freq));
1023 /* Only Tegra114+ has the System Counter regs */
1024 debug("%s: setting CNTFID0 to 0x%08X\n", __func__, freq);
1025 writel(freq, &sysctr->cntfid0);
1027 val = readl(&sysctr->cntcr);
1028 val |= TSC_CNTCR_ENABLE | TSC_CNTCR_HDBG;
1029 writel(val, &sysctr->cntcr);
1030 debug("%s: TSC CNTCR = 0x%08X\n", __func__, val);
1033 #define PLLE_SS_CNTL 0x68
1034 #define PLLE_SS_CNTL_SSCINCINTR(x) (((x) & 0x3f) << 24)
1035 #define PLLE_SS_CNTL_SSCINC(x) (((x) & 0xff) << 16)
1036 #define PLLE_SS_CNTL_SSCINVERT (1 << 15)
1037 #define PLLE_SS_CNTL_SSCCENTER (1 << 14)
1038 #define PLLE_SS_CNTL_SSCBYP (1 << 12)
1039 #define PLLE_SS_CNTL_INTERP_RESET (1 << 11)
1040 #define PLLE_SS_CNTL_BYPASS_SS (1 << 10)
1041 #define PLLE_SS_CNTL_SSCMAX(x) (((x) & 0x1ff) << 0)
1043 #define PLLE_BASE 0x0e8
1044 #define PLLE_BASE_ENABLE (1 << 30)
1045 #define PLLE_BASE_LOCK_OVERRIDE (1 << 29)
1046 #define PLLE_BASE_PLDIV_CML(x) (((x) & 0xf) << 24)
1047 #define PLLE_BASE_NDIV(x) (((x) & 0xff) << 8)
1048 #define PLLE_BASE_MDIV(x) (((x) & 0xff) << 0)
1050 #define PLLE_MISC 0x0ec
1051 #define PLLE_MISC_IDDQ_SWCTL (1 << 14)
1052 #define PLLE_MISC_IDDQ_OVERRIDE (1 << 13)
1053 #define PLLE_MISC_LOCK_ENABLE (1 << 9)
1054 #define PLLE_MISC_PTS (1 << 8)
1055 #define PLLE_MISC_VREG_BG_CTRL(x) (((x) & 0x3) << 4)
1056 #define PLLE_MISC_VREG_CTRL(x) (((x) & 0x3) << 2)
1058 #define PLLE_AUX 0x48c
1059 #define PLLE_AUX_SEQ_ENABLE (1 << 24)
1060 #define PLLE_AUX_ENABLE_SWCTL (1 << 4)
1062 int tegra_plle_enable(void)
1064 unsigned int m = 1, n = 200, cpcon = 13;
1067 value = readl(NV_PA_CLK_RST_BASE + PLLE_BASE);
1068 value &= ~PLLE_BASE_LOCK_OVERRIDE;
1069 writel(value, NV_PA_CLK_RST_BASE + PLLE_BASE);
1071 value = readl(NV_PA_CLK_RST_BASE + PLLE_AUX);
1072 value |= PLLE_AUX_ENABLE_SWCTL;
1073 value &= ~PLLE_AUX_SEQ_ENABLE;
1074 writel(value, NV_PA_CLK_RST_BASE + PLLE_AUX);
1078 value = readl(NV_PA_CLK_RST_BASE + PLLE_MISC);
1079 value |= PLLE_MISC_IDDQ_SWCTL;
1080 value &= ~PLLE_MISC_IDDQ_OVERRIDE;
1081 value |= PLLE_MISC_LOCK_ENABLE;
1082 value |= PLLE_MISC_PTS;
1083 value |= PLLE_MISC_VREG_BG_CTRL(3);
1084 value |= PLLE_MISC_VREG_CTRL(2);
1085 writel(value, NV_PA_CLK_RST_BASE + PLLE_MISC);
1089 value = readl(NV_PA_CLK_RST_BASE + PLLE_SS_CNTL);
1090 value |= PLLE_SS_CNTL_SSCBYP | PLLE_SS_CNTL_INTERP_RESET |
1091 PLLE_SS_CNTL_BYPASS_SS;
1092 writel(value, NV_PA_CLK_RST_BASE + PLLE_SS_CNTL);
1094 value = readl(NV_PA_CLK_RST_BASE + PLLE_BASE);
1095 value &= ~PLLE_BASE_PLDIV_CML(0xf);
1096 value &= ~PLLE_BASE_NDIV(0xff);
1097 value &= ~PLLE_BASE_MDIV(0xff);
1098 value |= PLLE_BASE_PLDIV_CML(cpcon);
1099 value |= PLLE_BASE_NDIV(n);
1100 value |= PLLE_BASE_MDIV(m);
1101 writel(value, NV_PA_CLK_RST_BASE + PLLE_BASE);
1105 value = readl(NV_PA_CLK_RST_BASE + PLLE_BASE);
1106 value |= PLLE_BASE_ENABLE;
1107 writel(value, NV_PA_CLK_RST_BASE + PLLE_BASE);
1112 value = readl(NV_PA_CLK_RST_BASE + PLLE_SS_CNTL);
1113 value &= ~PLLE_SS_CNTL_SSCINVERT;
1114 value &= ~PLLE_SS_CNTL_SSCCENTER;
1116 value &= ~PLLE_SS_CNTL_SSCINCINTR(0x3f);
1117 value &= ~PLLE_SS_CNTL_SSCINC(0xff);
1118 value &= ~PLLE_SS_CNTL_SSCMAX(0x1ff);
1120 value |= PLLE_SS_CNTL_SSCINCINTR(0x20);
1121 value |= PLLE_SS_CNTL_SSCINC(0x01);
1122 value |= PLLE_SS_CNTL_SSCMAX(0x25);
1124 writel(value, NV_PA_CLK_RST_BASE + PLLE_SS_CNTL);
1126 value = readl(NV_PA_CLK_RST_BASE + PLLE_SS_CNTL);
1127 value &= ~PLLE_SS_CNTL_SSCBYP;
1128 value &= ~PLLE_SS_CNTL_BYPASS_SS;
1129 writel(value, NV_PA_CLK_RST_BASE + PLLE_SS_CNTL);
1133 value = readl(NV_PA_CLK_RST_BASE + PLLE_SS_CNTL);
1134 value &= ~PLLE_SS_CNTL_INTERP_RESET;
1135 writel(value, NV_PA_CLK_RST_BASE + PLLE_SS_CNTL);