3 * Clock initialization for OMAP4
6 * Texas Instruments, <www.ti.com>
8 * Aneesh V <aneesh@ti.com>
10 * Based on previous work by:
11 * Santosh Shilimkar <santosh.shilimkar@ti.com>
12 * Rajendra Nayak <rnayak@ti.com>
14 * See file CREDITS for list of people who contributed to this
17 * This program is free software; you can redistribute it and/or
18 * modify it under the terms of the GNU General Public License as
19 * published by the Free Software Foundation; either version 2 of
20 * the License, or (at your option) any later version.
22 * This program is distributed in the hope that it will be useful,
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 * GNU General Public License for more details.
27 * You should have received a copy of the GNU General Public License
28 * along with this program; if not, write to the Free Software
29 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
33 #include <asm/omap_common.h>
35 #include <asm/arch/clocks.h>
36 #include <asm/arch/sys_proto.h>
37 #include <asm/utils.h>
38 #include <asm/omap_gpio.h>
40 #ifndef CONFIG_SPL_BUILD
42 * printing to console doesn't work unless
43 * this code is executed from SPL
45 #define printf(fmt, args...)
47 #endif /* !CONFIG_SPL_BUILD */
49 const u32 sys_clk_array[8] = {
50 12000000, /* 12 MHz */
51 13000000, /* 13 MHz */
52 16800000, /* 16.8 MHz */
53 19200000, /* 19.2 MHz */
54 26000000, /* 26 MHz */
55 27000000, /* 27 MHz */
56 38400000, /* 38.4 MHz */
60 * The M & N values in the following tables are created using the
62 * tools/omap/clocks_get_m_n.c
63 * Please use this tool for creating the table for any new frequency.
66 /* dpll locked at 1400 MHz MPU clk at 700 MHz(OPP100) - DCC OFF */
67 static const struct dpll_params mpu_dpll_params_1400mhz[NUM_SYS_CLKS] = {
68 {175, 2, 1, -1, -1, -1, -1, -1}, /* 12 MHz */
69 {700, 12, 1, -1, -1, -1, -1, -1}, /* 13 MHz */
70 {125, 2, 1, -1, -1, -1, -1, -1}, /* 16.8 MHz */
71 {401, 10, 1, -1, -1, -1, -1, -1}, /* 19.2 MHz */
72 {350, 12, 1, -1, -1, -1, -1, -1}, /* 26 MHz */
73 {700, 26, 1, -1, -1, -1, -1, -1}, /* 27 MHz */
74 {638, 34, 1, -1, -1, -1, -1, -1} /* 38.4 MHz */
77 /* dpll locked at 1584 MHz - MPU clk at 792 MHz(OPP Turbo 4430) */
78 static const struct dpll_params mpu_dpll_params_1600mhz[NUM_SYS_CLKS] = {
79 {200, 2, 1, -1, -1, -1, -1, -1}, /* 12 MHz */
80 {800, 12, 1, -1, -1, -1, -1, -1}, /* 13 MHz */
81 {619, 12, 1, -1, -1, -1, -1, -1}, /* 16.8 MHz */
82 {125, 2, 1, -1, -1, -1, -1, -1}, /* 19.2 MHz */
83 {400, 12, 1, -1, -1, -1, -1, -1}, /* 26 MHz */
84 {800, 26, 1, -1, -1, -1, -1, -1}, /* 27 MHz */
85 {125, 5, 1, -1, -1, -1, -1, -1} /* 38.4 MHz */
88 /* dpll locked at 1200 MHz - MPU clk at 600 MHz */
89 static const struct dpll_params mpu_dpll_params_1200mhz[NUM_SYS_CLKS] = {
90 {50, 0, 1, -1, -1, -1, -1, -1}, /* 12 MHz */
91 {600, 12, 1, -1, -1, -1, -1, -1}, /* 13 MHz */
92 {250, 6, 1, -1, -1, -1, -1, -1}, /* 16.8 MHz */
93 {125, 3, 1, -1, -1, -1, -1, -1}, /* 19.2 MHz */
94 {300, 12, 1, -1, -1, -1, -1, -1}, /* 26 MHz */
95 {200, 8, 1, -1, -1, -1, -1, -1}, /* 27 MHz */
96 {125, 7, 1, -1, -1, -1, -1, -1} /* 38.4 MHz */
99 static const struct dpll_params core_dpll_params_1600mhz[NUM_SYS_CLKS] = {
100 {200, 2, 1, 5, 8, 4, 6, 5}, /* 12 MHz */
101 {800, 12, 1, 5, 8, 4, 6, 5}, /* 13 MHz */
102 {619, 12, 1, 5, 8, 4, 6, 5}, /* 16.8 MHz */
103 {125, 2, 1, 5, 8, 4, 6, 5}, /* 19.2 MHz */
104 {400, 12, 1, 5, 8, 4, 6, 5}, /* 26 MHz */
105 {800, 26, 1, 5, 8, 4, 6, 5}, /* 27 MHz */
106 {125, 5, 1, 5, 8, 4, 6, 5} /* 38.4 MHz */
109 static const struct dpll_params core_dpll_params_es1_1524mhz[NUM_SYS_CLKS] = {
110 {127, 1, 1, 5, 8, 4, 6, 5}, /* 12 MHz */
111 {762, 12, 1, 5, 8, 4, 6, 5}, /* 13 MHz */
112 {635, 13, 1, 5, 8, 4, 6, 5}, /* 16.8 MHz */
113 {635, 15, 1, 5, 8, 4, 6, 5}, /* 19.2 MHz */
114 {381, 12, 1, 5, 8, 4, 6, 5}, /* 26 MHz */
115 {254, 8, 1, 5, 8, 4, 6, 5}, /* 27 MHz */
116 {496, 24, 1, 5, 8, 4, 6, 5} /* 38.4 MHz */
119 static const struct dpll_params
120 core_dpll_params_es2_1600mhz_ddr200mhz[NUM_SYS_CLKS] = {
121 {200, 2, 2, 5, 8, 4, 6, 5}, /* 12 MHz */
122 {800, 12, 2, 5, 8, 4, 6, 5}, /* 13 MHz */
123 {619, 12, 2, 5, 8, 4, 6, 5}, /* 16.8 MHz */
124 {125, 2, 2, 5, 8, 4, 6, 5}, /* 19.2 MHz */
125 {400, 12, 2, 5, 8, 4, 6, 5}, /* 26 MHz */
126 {800, 26, 2, 5, 8, 4, 6, 5}, /* 27 MHz */
127 {125, 5, 2, 5, 8, 4, 6, 5} /* 38.4 MHz */
130 static const struct dpll_params per_dpll_params_1536mhz[NUM_SYS_CLKS] = {
131 {64, 0, 8, 6, 12, 9, 4, 5}, /* 12 MHz */
132 {768, 12, 8, 6, 12, 9, 4, 5}, /* 13 MHz */
133 {320, 6, 8, 6, 12, 9, 4, 5}, /* 16.8 MHz */
134 {40, 0, 8, 6, 12, 9, 4, 5}, /* 19.2 MHz */
135 {384, 12, 8, 6, 12, 9, 4, 5}, /* 26 MHz */
136 {256, 8, 8, 6, 12, 9, 4, 5}, /* 27 MHz */
137 {20, 0, 8, 6, 12, 9, 4, 5} /* 38.4 MHz */
140 static const struct dpll_params iva_dpll_params_1862mhz[NUM_SYS_CLKS] = {
141 {931, 11, -1, -1, 4, 7, -1, -1}, /* 12 MHz */
142 {931, 12, -1, -1, 4, 7, -1, -1}, /* 13 MHz */
143 {665, 11, -1, -1, 4, 7, -1, -1}, /* 16.8 MHz */
144 {727, 14, -1, -1, 4, 7, -1, -1}, /* 19.2 MHz */
145 {931, 25, -1, -1, 4, 7, -1, -1}, /* 26 MHz */
146 {931, 26, -1, -1, 4, 7, -1, -1}, /* 27 MHz */
147 {291, 11, -1, -1, 4, 7, -1, -1} /* 38.4 MHz */
150 /* ABE M & N values with sys_clk as source */
151 static const struct dpll_params
152 abe_dpll_params_sysclk_196608khz[NUM_SYS_CLKS] = {
153 {49, 5, 1, 1, -1, -1, -1, -1}, /* 12 MHz */
154 {68, 8, 1, 1, -1, -1, -1, -1}, /* 13 MHz */
155 {35, 5, 1, 1, -1, -1, -1, -1}, /* 16.8 MHz */
156 {46, 8, 1, 1, -1, -1, -1, -1}, /* 19.2 MHz */
157 {34, 8, 1, 1, -1, -1, -1, -1}, /* 26 MHz */
158 {29, 7, 1, 1, -1, -1, -1, -1}, /* 27 MHz */
159 {64, 24, 1, 1, -1, -1, -1, -1} /* 38.4 MHz */
162 /* ABE M & N values with 32K clock as source */
163 static const struct dpll_params abe_dpll_params_32k_196608khz = {
164 750, 0, 1, 1, -1, -1, -1, -1
167 static const struct dpll_params usb_dpll_params_1920mhz[NUM_SYS_CLKS] = {
168 {80, 0, 2, -1, -1, -1, -1, -1}, /* 12 MHz */
169 {960, 12, 2, -1, -1, -1, -1, -1}, /* 13 MHz */
170 {400, 6, 2, -1, -1, -1, -1, -1}, /* 16.8 MHz */
171 {50, 0, 2, -1, -1, -1, -1, -1}, /* 19.2 MHz */
172 {480, 12, 2, -1, -1, -1, -1, -1}, /* 26 MHz */
173 {320, 8, 2, -1, -1, -1, -1, -1}, /* 27 MHz */
174 {25, 0, 2, -1, -1, -1, -1, -1} /* 38.4 MHz */
177 void setup_post_dividers(u32 const base, const struct dpll_params *params)
179 struct dpll_regs *const dpll_regs = (struct dpll_regs *)base;
181 /* Setup post-dividers */
183 writel(params->m2, &dpll_regs->cm_div_m2_dpll);
185 writel(params->m3, &dpll_regs->cm_div_m3_dpll);
187 writel(params->m4, &dpll_regs->cm_div_m4_dpll);
189 writel(params->m5, &dpll_regs->cm_div_m5_dpll);
191 writel(params->m6, &dpll_regs->cm_div_m6_dpll);
193 writel(params->m7, &dpll_regs->cm_div_m7_dpll);
199 * Resulting MPU frequencies:
200 * 4430 ES1.0 : 600 MHz
201 * 4430 ES2.x : 792 MHz (OPP Turbo)
202 * 4460 : 920 MHz (OPP Turbo) - DCC disabled
204 const struct dpll_params *get_mpu_dpll_params(void)
206 u32 omap_rev, sysclk_ind;
208 omap_rev = omap_revision();
209 sysclk_ind = get_sys_clk_index();
211 if (omap_rev == OMAP4430_ES1_0)
212 return &mpu_dpll_params_1200mhz[sysclk_ind];
213 else if (omap_rev < OMAP4460_ES1_0)
214 return &mpu_dpll_params_1600mhz[sysclk_ind];
216 return &mpu_dpll_params_1400mhz[sysclk_ind];
219 const struct dpll_params *get_core_dpll_params(void)
221 u32 sysclk_ind = get_sys_clk_index();
223 switch (omap_revision()) {
225 return &core_dpll_params_es1_1524mhz[sysclk_ind];
227 case OMAP4430_SILICON_ID_INVALID:
229 return &core_dpll_params_es2_1600mhz_ddr200mhz[sysclk_ind];
231 return &core_dpll_params_1600mhz[sysclk_ind];
236 const struct dpll_params *get_per_dpll_params(void)
238 u32 sysclk_ind = get_sys_clk_index();
239 return &per_dpll_params_1536mhz[sysclk_ind];
242 const struct dpll_params *get_iva_dpll_params(void)
244 u32 sysclk_ind = get_sys_clk_index();
245 return &iva_dpll_params_1862mhz[sysclk_ind];
248 const struct dpll_params *get_usb_dpll_params(void)
250 u32 sysclk_ind = get_sys_clk_index();
251 return &usb_dpll_params_1920mhz[sysclk_ind];
254 const struct dpll_params *get_abe_dpll_params(void)
256 #ifdef CONFIG_SYS_OMAP_ABE_SYSCK
257 u32 sysclk_ind = get_sys_clk_index();
258 return &abe_dpll_params_sysclk_196608khz[sysclk_ind];
260 return &abe_dpll_params_32k_196608khz;
265 * Setup the voltages for vdd_mpu, vdd_core, and vdd_iva
266 * We set the maximum voltages allowed here because Smart-Reflex is not
267 * enabled in bootloader. Voltage initialization in the kernel will set
268 * these to the nominal values after enabling Smart-Reflex
270 void scale_vcores(void)
274 omap_vc_init(PRM_VC_I2C_CHANNEL_FREQ_KHZ);
276 omap_rev = omap_revision();
279 * Scale Voltage rails:
284 if (omap_rev < OMAP4460_ES1_0) {
287 * VDD_CORE = TWL6030 VCORE3
288 * VDD_MPU = TWL6030 VCORE1
289 * VDD_IVA = TWL6030 VCORE2
292 do_scale_vcore(SMPS_REG_ADDR_VCORE3, volt);
296 * Setting a high voltage for Nitro mode as smart reflex is not
297 * enabled. We use the maximum possible value in the AVS range
298 * because the next higher voltage in the discrete range
299 * (code >= 0b111010) is way too high.
302 do_scale_vcore(SMPS_REG_ADDR_VCORE1, volt);
304 do_scale_vcore(SMPS_REG_ADDR_VCORE2, volt);
309 * VDD_CORE = TWL6030 VCORE1
311 * VDD_IVA = TWL6030 VCORE2
314 do_scale_vcore(SMPS_REG_ADDR_VCORE1, volt);
317 do_scale_tps62361(TPS62361_VSEL0_GPIO,
318 TPS62361_REG_ADDR_SET1, volt);
319 /* VCORE 2 - supplies vdd_iva */
321 do_scale_vcore(SMPS_REG_ADDR_VCORE2, volt);
325 u32 get_offset_code(u32 offset)
327 u32 offset_code, step = 12660; /* 12.66 mV represented in uV */
329 if (omap_revision() == OMAP4430_ES1_0)
330 offset -= PHOENIX_SMPS_BASE_VOLT_STD_MODE_UV;
332 offset -= PHOENIX_SMPS_BASE_VOLT_STD_MODE_WITH_OFFSET_UV;
334 offset_code = (offset + step - 1) / step;
336 /* The code starts at 1 not 0 */
337 return ++offset_code;
341 * Enable essential clock domains, modules and
342 * do some additional special settings needed
344 void enable_basic_clocks(void)
346 u32 const clk_domains_essential[] = {
347 (*prcm)->cm_l4per_clkstctrl,
348 (*prcm)->cm_l3init_clkstctrl,
349 (*prcm)->cm_memif_clkstctrl,
350 (*prcm)->cm_l4cfg_clkstctrl,
354 u32 const clk_modules_hw_auto_essential[] = {
355 (*prcm)->cm_l3_2_gpmc_clkctrl,
356 (*prcm)->cm_memif_emif_1_clkctrl,
357 (*prcm)->cm_memif_emif_2_clkctrl,
358 (*prcm)->cm_l4cfg_l4_cfg_clkctrl,
359 (*prcm)->cm_wkup_gpio1_clkctrl,
360 (*prcm)->cm_l4per_gpio2_clkctrl,
361 (*prcm)->cm_l4per_gpio3_clkctrl,
362 (*prcm)->cm_l4per_gpio4_clkctrl,
363 (*prcm)->cm_l4per_gpio5_clkctrl,
364 (*prcm)->cm_l4per_gpio6_clkctrl,
368 u32 const clk_modules_explicit_en_essential[] = {
369 (*prcm)->cm_wkup_gptimer1_clkctrl,
370 (*prcm)->cm_l3init_hsmmc1_clkctrl,
371 (*prcm)->cm_l3init_hsmmc2_clkctrl,
372 (*prcm)->cm_l4per_gptimer2_clkctrl,
373 (*prcm)->cm_wkup_wdtimer2_clkctrl,
374 (*prcm)->cm_l4per_uart3_clkctrl,
378 /* Enable optional additional functional clock for GPIO4 */
379 setbits_le32((*prcm)->cm_l4per_gpio4_clkctrl,
380 GPIO4_CLKCTRL_OPTFCLKEN_MASK);
382 /* Enable 96 MHz clock for MMC1 & MMC2 */
383 setbits_le32((*prcm)->cm_l3init_hsmmc1_clkctrl,
384 HSMMC_CLKCTRL_CLKSEL_MASK);
385 setbits_le32((*prcm)->cm_l3init_hsmmc2_clkctrl,
386 HSMMC_CLKCTRL_CLKSEL_MASK);
388 /* Select 32KHz clock as the source of GPTIMER1 */
389 setbits_le32((*prcm)->cm_wkup_gptimer1_clkctrl,
390 GPTIMER1_CLKCTRL_CLKSEL_MASK);
392 /* Enable optional 48M functional clock for USB PHY */
393 setbits_le32((*prcm)->cm_l3init_usbphy_clkctrl,
394 USBPHY_CLKCTRL_OPTFCLKEN_PHY_48M_MASK);
396 do_enable_clocks(clk_domains_essential,
397 clk_modules_hw_auto_essential,
398 clk_modules_explicit_en_essential,
402 void enable_basic_uboot_clocks(void)
404 u32 const clk_domains_essential[] = {
408 u32 const clk_modules_hw_auto_essential[] = {
409 (*prcm)->cm_l3init_hsusbotg_clkctrl,
410 (*prcm)->cm_l3init_usbphy_clkctrl,
411 (*prcm)->cm_l3init_usbphy_clkctrl,
412 (*prcm)->cm_clksel_usb_60mhz,
413 (*prcm)->cm_l3init_hsusbtll_clkctrl,
417 u32 const clk_modules_explicit_en_essential[] = {
418 (*prcm)->cm_l4per_mcspi1_clkctrl,
419 (*prcm)->cm_l4per_i2c1_clkctrl,
420 (*prcm)->cm_l4per_i2c2_clkctrl,
421 (*prcm)->cm_l4per_i2c3_clkctrl,
422 (*prcm)->cm_l4per_i2c4_clkctrl,
423 (*prcm)->cm_l3init_hsusbhost_clkctrl,
427 do_enable_clocks(clk_domains_essential,
428 clk_modules_hw_auto_essential,
429 clk_modules_explicit_en_essential,
434 * Enable non-essential clock domains, modules and
435 * do some additional special settings needed
437 void enable_non_essential_clocks(void)
439 u32 const clk_domains_non_essential[] = {
440 (*prcm)->cm_mpu_m3_clkstctrl,
441 (*prcm)->cm_ivahd_clkstctrl,
442 (*prcm)->cm_dsp_clkstctrl,
443 (*prcm)->cm_dss_clkstctrl,
444 (*prcm)->cm_sgx_clkstctrl,
445 (*prcm)->cm1_abe_clkstctrl,
446 (*prcm)->cm_c2c_clkstctrl,
447 (*prcm)->cm_cam_clkstctrl,
448 (*prcm)->cm_dss_clkstctrl,
449 (*prcm)->cm_sdma_clkstctrl,
453 u32 const clk_modules_hw_auto_non_essential[] = {
454 (*prcm)->cm_l3instr_l3_3_clkctrl,
455 (*prcm)->cm_l3instr_l3_instr_clkctrl,
456 (*prcm)->cm_l3instr_intrconn_wp1_clkctrl,
457 (*prcm)->cm_l3init_hsi_clkctrl,
461 u32 const clk_modules_explicit_en_non_essential[] = {
462 (*prcm)->cm1_abe_aess_clkctrl,
463 (*prcm)->cm1_abe_pdm_clkctrl,
464 (*prcm)->cm1_abe_dmic_clkctrl,
465 (*prcm)->cm1_abe_mcasp_clkctrl,
466 (*prcm)->cm1_abe_mcbsp1_clkctrl,
467 (*prcm)->cm1_abe_mcbsp2_clkctrl,
468 (*prcm)->cm1_abe_mcbsp3_clkctrl,
469 (*prcm)->cm1_abe_slimbus_clkctrl,
470 (*prcm)->cm1_abe_timer5_clkctrl,
471 (*prcm)->cm1_abe_timer6_clkctrl,
472 (*prcm)->cm1_abe_timer7_clkctrl,
473 (*prcm)->cm1_abe_timer8_clkctrl,
474 (*prcm)->cm1_abe_wdt3_clkctrl,
475 (*prcm)->cm_l4per_gptimer9_clkctrl,
476 (*prcm)->cm_l4per_gptimer10_clkctrl,
477 (*prcm)->cm_l4per_gptimer11_clkctrl,
478 (*prcm)->cm_l4per_gptimer3_clkctrl,
479 (*prcm)->cm_l4per_gptimer4_clkctrl,
480 (*prcm)->cm_l4per_hdq1w_clkctrl,
481 (*prcm)->cm_l4per_mcbsp4_clkctrl,
482 (*prcm)->cm_l4per_mcspi2_clkctrl,
483 (*prcm)->cm_l4per_mcspi3_clkctrl,
484 (*prcm)->cm_l4per_mcspi4_clkctrl,
485 (*prcm)->cm_l4per_mmcsd3_clkctrl,
486 (*prcm)->cm_l4per_mmcsd4_clkctrl,
487 (*prcm)->cm_l4per_mmcsd5_clkctrl,
488 (*prcm)->cm_l4per_uart1_clkctrl,
489 (*prcm)->cm_l4per_uart2_clkctrl,
490 (*prcm)->cm_l4per_uart4_clkctrl,
491 (*prcm)->cm_wkup_keyboard_clkctrl,
492 (*prcm)->cm_wkup_wdtimer2_clkctrl,
493 (*prcm)->cm_cam_iss_clkctrl,
494 (*prcm)->cm_cam_fdif_clkctrl,
495 (*prcm)->cm_dss_dss_clkctrl,
496 (*prcm)->cm_sgx_sgx_clkctrl,
500 /* Enable optional functional clock for ISS */
501 setbits_le32((*prcm)->cm_cam_iss_clkctrl, ISS_CLKCTRL_OPTFCLKEN_MASK);
503 /* Enable all optional functional clocks of DSS */
504 setbits_le32((*prcm)->cm_dss_dss_clkctrl, DSS_CLKCTRL_OPTFCLKEN_MASK);
506 do_enable_clocks(clk_domains_non_essential,
507 clk_modules_hw_auto_non_essential,
508 clk_modules_explicit_en_non_essential,
511 /* Put camera module in no sleep mode */
512 clrsetbits_le32((*prcm)->cm_cam_clkstctrl,
513 MODULE_CLKCTRL_MODULEMODE_MASK,
514 CD_CLKCTRL_CLKTRCTRL_NO_SLEEP <<
515 MODULE_CLKCTRL_MODULEMODE_SHIFT);