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>
34 #include <asm/arch/clocks.h>
35 #include <asm/arch/sys_proto.h>
36 #include <asm/utils.h>
37 #include <asm/omap_gpio.h>
39 #ifndef CONFIG_SPL_BUILD
41 * printing to console doesn't work unless
42 * this code is executed from SPL
44 #define printf(fmt, args...)
48 #define abs(x) (((x) < 0) ? ((x)*-1) : (x))
50 struct omap4_prcm_regs *const prcm = (struct omap4_prcm_regs *)0x4A004100;
52 static const u32 sys_clk_array[8] = {
53 12000000, /* 12 MHz */
54 13000000, /* 13 MHz */
55 16800000, /* 16.8 MHz */
56 19200000, /* 19.2 MHz */
57 26000000, /* 26 MHz */
58 27000000, /* 27 MHz */
59 38400000, /* 38.4 MHz */
63 * The M & N values in the following tables are created using the
65 * tools/omap/clocks_get_m_n.c
66 * Please use this tool for creating the table for any new frequency.
69 /* dpll locked at 1584 MHz - MPU clk at 792 MHz(OPP Turbo) */
70 static const struct dpll_params mpu_dpll_params_1584mhz[NUM_SYS_CLKS] = {
71 {66, 0, 1, -1, -1, -1, -1, -1}, /* 12 MHz */
72 {792, 12, 1, -1, -1, -1, -1, -1}, /* 13 MHz */
73 {330, 6, 1, -1, -1, -1, -1, -1}, /* 16.8 MHz */
74 {165, 3, 1, -1, -1, -1, -1, -1}, /* 19.2 MHz */
75 {396, 12, 1, -1, -1, -1, -1, -1}, /* 26 MHz */
76 {88, 2, 1, -1, -1, -1, -1, -1}, /* 27 MHz */
77 {165, 7, 1, -1, -1, -1, -1, -1} /* 38.4 MHz */
80 /* dpll locked at 1200 MHz - MPU clk at 600 MHz */
81 static const struct dpll_params mpu_dpll_params_1200mhz[NUM_SYS_CLKS] = {
82 {50, 0, 1, -1, -1, -1, -1, -1}, /* 12 MHz */
83 {600, 12, 1, -1, -1, -1, -1, -1}, /* 13 MHz */
84 {250, 6, 1, -1, -1, -1, -1, -1}, /* 16.8 MHz */
85 {125, 3, 1, -1, -1, -1, -1, -1}, /* 19.2 MHz */
86 {300, 12, 1, -1, -1, -1, -1, -1}, /* 26 MHz */
87 {200, 8, 1, -1, -1, -1, -1, -1}, /* 27 MHz */
88 {125, 7, 1, -1, -1, -1, -1, -1} /* 38.4 MHz */
91 static const struct dpll_params core_dpll_params_1600mhz[NUM_SYS_CLKS] = {
92 {200, 2, 1, 5, 8, 4, 6, 5}, /* 12 MHz */
93 {800, 12, 1, 5, 8, 4, 6, 5}, /* 13 MHz */
94 {619, 12, 1, 5, 8, 4, 6, 5}, /* 16.8 MHz */
95 {125, 2, 1, 5, 8, 4, 6, 5}, /* 19.2 MHz */
96 {400, 12, 1, 5, 8, 4, 6, 5}, /* 26 MHz */
97 {800, 26, 1, 5, 8, 4, 6, 5}, /* 27 MHz */
98 {125, 5, 1, 5, 8, 4, 6, 5} /* 38.4 MHz */
101 static const struct dpll_params core_dpll_params_es1_1524mhz[NUM_SYS_CLKS] = {
102 {127, 1, 1, 5, 8, 4, 6, 5}, /* 12 MHz */
103 {762, 12, 1, 5, 8, 4, 6, 5}, /* 13 MHz */
104 {635, 13, 1, 5, 8, 4, 6, 5}, /* 16.8 MHz */
105 {635, 15, 1, 5, 8, 4, 6, 5}, /* 19.2 MHz */
106 {381, 12, 1, 5, 8, 4, 6, 5}, /* 26 MHz */
107 {254, 8, 1, 5, 8, 4, 6, 5}, /* 27 MHz */
108 {496, 24, 1, 5, 8, 4, 6, 5} /* 38.4 MHz */
111 static const struct dpll_params
112 core_dpll_params_es2_1600mhz_ddr200mhz[NUM_SYS_CLKS] = {
113 {200, 2, 2, 5, 8, 4, 6, 5}, /* 12 MHz */
114 {800, 12, 2, 5, 8, 4, 6, 5}, /* 13 MHz */
115 {619, 12, 2, 5, 8, 4, 6, 5}, /* 16.8 MHz */
116 {125, 2, 2, 5, 8, 4, 6, 5}, /* 19.2 MHz */
117 {400, 12, 2, 5, 8, 4, 6, 5}, /* 26 MHz */
118 {800, 26, 2, 5, 8, 4, 6, 5}, /* 27 MHz */
119 {125, 5, 2, 5, 8, 4, 6, 5} /* 38.4 MHz */
122 static const struct dpll_params per_dpll_params_1536mhz[NUM_SYS_CLKS] = {
123 {64, 0, 8, 6, 12, 9, 4, 5}, /* 12 MHz */
124 {768, 12, 8, 6, 12, 9, 4, 5}, /* 13 MHz */
125 {320, 6, 8, 6, 12, 9, 4, 5}, /* 16.8 MHz */
126 {40, 0, 8, 6, 12, 9, 4, 5}, /* 19.2 MHz */
127 {384, 12, 8, 6, 12, 9, 4, 5}, /* 26 MHz */
128 {256, 8, 8, 6, 12, 9, 4, 5}, /* 27 MHz */
129 {20, 0, 8, 6, 12, 9, 4, 5} /* 38.4 MHz */
132 static const struct dpll_params iva_dpll_params_1862mhz[NUM_SYS_CLKS] = {
133 {931, 11, -1, -1, 4, 7, -1, -1}, /* 12 MHz */
134 {931, 12, -1, -1, 4, 7, -1, -1}, /* 13 MHz */
135 {665, 11, -1, -1, 4, 7, -1, -1}, /* 16.8 MHz */
136 {727, 14, -1, -1, 4, 7, -1, -1}, /* 19.2 MHz */
137 {931, 25, -1, -1, 4, 7, -1, -1}, /* 26 MHz */
138 {931, 26, -1, -1, 4, 7, -1, -1}, /* 27 MHz */
139 {412, 16, -1, -1, 4, 7, -1, -1} /* 38.4 MHz */
142 /* ABE M & N values with sys_clk as source */
143 static const struct dpll_params
144 abe_dpll_params_sysclk_196608khz[NUM_SYS_CLKS] = {
145 {49, 5, 1, 1, -1, -1, -1, -1}, /* 12 MHz */
146 {68, 8, 1, 1, -1, -1, -1, -1}, /* 13 MHz */
147 {35, 5, 1, 1, -1, -1, -1, -1}, /* 16.8 MHz */
148 {46, 8, 1, 1, -1, -1, -1, -1}, /* 19.2 MHz */
149 {34, 8, 1, 1, -1, -1, -1, -1}, /* 26 MHz */
150 {29, 7, 1, 1, -1, -1, -1, -1}, /* 27 MHz */
151 {64, 24, 1, 1, -1, -1, -1, -1} /* 38.4 MHz */
154 /* ABE M & N values with 32K clock as source */
155 static const struct dpll_params abe_dpll_params_32k_196608khz = {
156 750, 0, 1, 1, -1, -1, -1, -1
160 static const struct dpll_params usb_dpll_params_1920mhz[NUM_SYS_CLKS] = {
161 {80, 0, 2, -1, -1, -1, -1, -1}, /* 12 MHz */
162 {960, 12, 2, -1, -1, -1, -1, -1}, /* 13 MHz */
163 {400, 6, 2, -1, -1, -1, -1, -1}, /* 16.8 MHz */
164 {50, 0, 2, -1, -1, -1, -1, -1}, /* 19.2 MHz */
165 {480, 12, 2, -1, -1, -1, -1, -1}, /* 26 MHz */
166 {320, 8, 2, -1, -1, -1, -1, -1}, /* 27 MHz */
167 {25, 0, 2, -1, -1, -1, -1, -1} /* 38.4 MHz */
170 static inline u32 __get_sys_clk_index(void)
174 * For ES1 the ROM code calibration of sys clock is not reliable
175 * due to hw issue. So, use hard-coded value. If this value is not
176 * correct for any board over-ride this function in board file
177 * From ES2.0 onwards you will get this information from
180 if (omap_revision() == OMAP4430_ES1_0)
181 ind = OMAP_SYS_CLK_IND_38_4_MHZ;
183 /* SYS_CLKSEL - 1 to match the dpll param array indices */
184 ind = (readl(&prcm->cm_sys_clksel) &
185 CM_SYS_CLKSEL_SYS_CLKSEL_MASK) - 1;
190 u32 get_sys_clk_index(void)
191 __attribute__ ((weak, alias("__get_sys_clk_index")));
193 u32 get_sys_clk_freq(void)
195 u8 index = get_sys_clk_index();
196 return sys_clk_array[index];
199 static inline void do_bypass_dpll(u32 *const base)
201 struct dpll_regs *dpll_regs = (struct dpll_regs *)base;
203 clrsetbits_le32(&dpll_regs->cm_clkmode_dpll,
204 CM_CLKMODE_DPLL_DPLL_EN_MASK,
205 DPLL_EN_FAST_RELOCK_BYPASS <<
206 CM_CLKMODE_DPLL_EN_SHIFT);
209 static inline void wait_for_bypass(u32 *const base)
211 struct dpll_regs *const dpll_regs = (struct dpll_regs *)base;
213 if (!wait_on_value(ST_DPLL_CLK_MASK, 0, &dpll_regs->cm_idlest_dpll,
215 printf("Bypassing DPLL failed %p\n", base);
219 static inline void do_lock_dpll(u32 *const base)
221 struct dpll_regs *const dpll_regs = (struct dpll_regs *)base;
223 clrsetbits_le32(&dpll_regs->cm_clkmode_dpll,
224 CM_CLKMODE_DPLL_DPLL_EN_MASK,
225 DPLL_EN_LOCK << CM_CLKMODE_DPLL_EN_SHIFT);
228 static inline void wait_for_lock(u32 *const base)
230 struct dpll_regs *const dpll_regs = (struct dpll_regs *)base;
232 if (!wait_on_value(ST_DPLL_CLK_MASK, ST_DPLL_CLK_MASK,
233 &dpll_regs->cm_idlest_dpll, LDELAY)) {
234 printf("DPLL locking failed for %p\n", base);
239 static void do_setup_dpll(u32 *const base, const struct dpll_params *params,
243 struct dpll_regs *const dpll_regs = (struct dpll_regs *)base;
248 temp = readl(&dpll_regs->cm_clksel_dpll);
250 temp &= ~CM_CLKSEL_DPLL_M_MASK;
251 temp |= (params->m << CM_CLKSEL_DPLL_M_SHIFT) & CM_CLKSEL_DPLL_M_MASK;
253 temp &= ~CM_CLKSEL_DPLL_N_MASK;
254 temp |= (params->n << CM_CLKSEL_DPLL_N_SHIFT) & CM_CLKSEL_DPLL_N_MASK;
256 writel(temp, &dpll_regs->cm_clksel_dpll);
262 /* Setup post-dividers */
264 writel(params->m2, &dpll_regs->cm_div_m2_dpll);
266 writel(params->m3, &dpll_regs->cm_div_m3_dpll);
268 writel(params->m4, &dpll_regs->cm_div_m4_dpll);
270 writel(params->m5, &dpll_regs->cm_div_m5_dpll);
272 writel(params->m6, &dpll_regs->cm_div_m6_dpll);
274 writel(params->m7, &dpll_regs->cm_div_m7_dpll);
276 /* Wait till the DPLL locks */
281 const struct dpll_params *get_core_dpll_params(void)
283 u32 sysclk_ind = get_sys_clk_index();
285 switch (omap_revision()) {
287 return &core_dpll_params_es1_1524mhz[sysclk_ind];
289 case OMAP4430_SILICON_ID_INVALID:
291 return &core_dpll_params_es2_1600mhz_ddr200mhz[sysclk_ind];
293 return &core_dpll_params_1600mhz[sysclk_ind];
297 u32 omap4_ddr_clk(void)
299 u32 ddr_clk, sys_clk_khz;
300 const struct dpll_params *core_dpll_params;
302 sys_clk_khz = get_sys_clk_freq() / 1000;
304 core_dpll_params = get_core_dpll_params();
306 debug("sys_clk %d\n ", sys_clk_khz * 1000);
308 /* Find Core DPLL locked frequency first */
309 ddr_clk = sys_clk_khz * 2 * core_dpll_params->m /
310 (core_dpll_params->n + 1);
312 * DDR frequency is PHY_ROOT_CLK/2
313 * PHY_ROOT_CLK = Fdpll/2/M2
315 ddr_clk = ddr_clk / 4 / core_dpll_params->m2;
317 ddr_clk *= 1000; /* convert to Hz */
318 debug("ddr_clk %d\n ", ddr_clk);
323 static void setup_dplls(void)
325 u32 sysclk_ind, temp;
326 const struct dpll_params *params;
327 debug("setup_dplls\n");
329 sysclk_ind = get_sys_clk_index();
332 params = get_core_dpll_params(); /* default - safest */
334 * Do not lock the core DPLL now. Just set it up.
335 * Core DPLL will be locked after setting up EMIF
336 * using the FREQ_UPDATE method(freq_update_core())
338 do_setup_dpll(&prcm->cm_clkmode_dpll_core, params, DPLL_NO_LOCK);
339 /* Set the ratios for CORE_CLK, L3_CLK, L4_CLK */
340 temp = (CLKSEL_CORE_X2_DIV_1 << CLKSEL_CORE_SHIFT) |
341 (CLKSEL_L3_CORE_DIV_2 << CLKSEL_L3_SHIFT) |
342 (CLKSEL_L4_L3_DIV_2 << CLKSEL_L4_SHIFT);
343 writel(temp, &prcm->cm_clksel_core);
344 debug("Core DPLL configured\n");
347 do_setup_dpll(&prcm->cm_clkmode_dpll_per,
348 &per_dpll_params_1536mhz[sysclk_ind], DPLL_LOCK);
349 debug("PER DPLL locked\n");
352 if (omap_revision() == OMAP4430_ES1_0)
353 params = &mpu_dpll_params_1200mhz[sysclk_ind];
355 params = &mpu_dpll_params_1584mhz[sysclk_ind];
356 do_setup_dpll(&prcm->cm_clkmode_dpll_mpu, params, DPLL_LOCK);
357 debug("MPU DPLL locked\n");
360 static void setup_non_essential_dplls(void)
362 u32 sys_clk_khz, abe_ref_clk;
363 u32 sysclk_ind, sd_div, num, den;
364 const struct dpll_params *params;
366 sysclk_ind = get_sys_clk_index();
367 sys_clk_khz = get_sys_clk_freq() / 1000;
370 clrsetbits_le32(&prcm->cm_bypclk_dpll_iva,
371 CM_BYPCLK_DPLL_IVA_CLKSEL_MASK, DPLL_IVA_CLKSEL_CORE_X2_DIV_2);
373 do_setup_dpll(&prcm->cm_clkmode_dpll_iva,
374 &iva_dpll_params_1862mhz[sysclk_ind], DPLL_LOCK);
378 * USB dpll is J-type. Need to set DPLL_SD_DIV for jitter correction
379 * DPLL_SD_DIV = CEILING ([DPLL_MULT/(DPLL_DIV+1)]* CLKINP / 250)
380 * - where CLKINP is sys_clk in MHz
381 * Use CLKINP in KHz and adjust the denominator accordingly so
382 * that we have enough accuracy and at the same time no overflow
384 params = &usb_dpll_params_1920mhz[sysclk_ind];
385 num = params->m * sys_clk_khz;
386 den = (params->n + 1) * 250 * 1000;
389 clrsetbits_le32(&prcm->cm_clksel_dpll_usb,
390 CM_CLKSEL_DPLL_DPLL_SD_DIV_MASK,
391 sd_div << CM_CLKSEL_DPLL_DPLL_SD_DIV_SHIFT);
393 /* Now setup the dpll with the regular function */
394 do_setup_dpll(&prcm->cm_clkmode_dpll_usb, params, DPLL_LOCK);
396 #ifdef CONFIG_SYS_OMAP4_ABE_SYSCK
397 params = &abe_dpll_params_sysclk_196608khz[sysclk_ind];
398 abe_ref_clk = CM_ABE_PLL_REF_CLKSEL_CLKSEL_SYSCLK;
400 params = &abe_dpll_params_32k_196608khz;
401 abe_ref_clk = CM_ABE_PLL_REF_CLKSEL_CLKSEL_32KCLK;
403 * We need to enable some additional options to achieve
404 * 196.608MHz from 32768 Hz
406 setbits_le32(&prcm->cm_clkmode_dpll_abe,
407 CM_CLKMODE_DPLL_DRIFTGUARD_EN_MASK|
408 CM_CLKMODE_DPLL_RELOCK_RAMP_EN_MASK|
409 CM_CLKMODE_DPLL_LPMODE_EN_MASK|
410 CM_CLKMODE_DPLL_REGM4XEN_MASK);
411 /* Spend 4 REFCLK cycles at each stage */
412 clrsetbits_le32(&prcm->cm_clkmode_dpll_abe,
413 CM_CLKMODE_DPLL_RAMP_RATE_MASK,
414 1 << CM_CLKMODE_DPLL_RAMP_RATE_SHIFT);
417 /* Select the right reference clk */
418 clrsetbits_le32(&prcm->cm_abe_pll_ref_clksel,
419 CM_ABE_PLL_REF_CLKSEL_CLKSEL_MASK,
420 abe_ref_clk << CM_ABE_PLL_REF_CLKSEL_CLKSEL_SHIFT);
422 do_setup_dpll(&prcm->cm_clkmode_dpll_abe, params, DPLL_LOCK);
425 static void do_scale_tps62361(u32 reg, u32 volt_mv)
429 step = volt_mv - TPS62361_BASE_VOLT_MV;
433 * Select SET1 in TPS62361:
434 * VSEL1 is grounded on board. So the following selects
435 * VSEL1 = 0 and VSEL0 = 1
437 omap_set_gpio_direction(TPS62361_VSEL0_GPIO, 0);
438 omap_set_gpio_dataout(TPS62361_VSEL0_GPIO, 1);
440 temp = TPS62361_I2C_SLAVE_ADDR |
441 (reg << PRM_VC_VAL_BYPASS_REGADDR_SHIFT) |
442 (step << PRM_VC_VAL_BYPASS_DATA_SHIFT) |
443 PRM_VC_VAL_BYPASS_VALID_BIT;
444 debug("do_scale_tps62361: volt - %d step - 0x%x\n", volt_mv, step);
446 writel(temp, &prcm->prm_vc_val_bypass);
447 if (!wait_on_value(PRM_VC_VAL_BYPASS_VALID_BIT, 0,
448 &prcm->prm_vc_val_bypass, LDELAY)) {
449 puts("Scaling voltage failed for vdd_mpu from TPS\n");
453 static void do_scale_vcore(u32 vcore_reg, u32 volt_mv)
455 u32 temp, offset_code;
456 u32 step = 12660; /* 12.66 mV represented in uV */
457 u32 offset = volt_mv;
459 /* convert to uV for better accuracy in the calculations */
462 if (omap_revision() == OMAP4430_ES1_0)
463 offset -= PHOENIX_SMPS_BASE_VOLT_STD_MODE_UV;
465 offset -= PHOENIX_SMPS_BASE_VOLT_STD_MODE_WITH_OFFSET_UV;
467 offset_code = (offset + step - 1) / step;
468 /* The code starts at 1 not 0 */
471 debug("do_scale_vcore: volt - %d offset_code - 0x%x\n", volt_mv,
474 temp = SMPS_I2C_SLAVE_ADDR |
475 (vcore_reg << PRM_VC_VAL_BYPASS_REGADDR_SHIFT) |
476 (offset_code << PRM_VC_VAL_BYPASS_DATA_SHIFT) |
477 PRM_VC_VAL_BYPASS_VALID_BIT;
478 writel(temp, &prcm->prm_vc_val_bypass);
479 if (!wait_on_value(PRM_VC_VAL_BYPASS_VALID_BIT, 0,
480 &prcm->prm_vc_val_bypass, LDELAY)) {
481 printf("Scaling voltage failed for 0x%x\n", vcore_reg);
486 * Setup the voltages for vdd_mpu, vdd_core, and vdd_iva
487 * We set the maximum voltages allowed here because Smart-Reflex is not
488 * enabled in bootloader. Voltage initialization in the kernel will set
489 * these to the nominal values after enabling Smart-Reflex
491 static void scale_vcores(void)
493 u32 volt, sys_clk_khz, cycles_hi, cycles_low, temp, omap4_rev;
495 sys_clk_khz = get_sys_clk_freq() / 1000;
498 * Setup the dedicated I2C controller for Voltage Control
499 * I2C clk - high period 40% low period 60%
501 cycles_hi = sys_clk_khz * 4 / PRM_VC_I2C_CHANNEL_FREQ_KHZ / 10;
502 cycles_low = sys_clk_khz * 6 / PRM_VC_I2C_CHANNEL_FREQ_KHZ / 10;
503 /* values to be set in register - less by 5 & 7 respectively */
506 temp = (cycles_hi << PRM_VC_CFG_I2C_CLK_SCLH_SHIFT) |
507 (cycles_low << PRM_VC_CFG_I2C_CLK_SCLL_SHIFT);
508 writel(temp, &prcm->prm_vc_cfg_i2c_clk);
510 /* Disable high speed mode and all advanced features */
511 writel(0x0, &prcm->prm_vc_cfg_i2c_mode);
513 omap4_rev = omap_revision();
514 /* TPS - supplies vdd_mpu on 4460 */
515 if (omap4_rev >= OMAP4460_ES1_0) {
517 do_scale_tps62361(TPS62361_REG_ADDR_SET1, volt);
523 * 4430 : supplies vdd_mpu
524 * Setting a high voltage for Nitro mode as smart reflex is not enabled.
525 * We use the maximum possible value in the AVS range because the next
526 * higher voltage in the discrete range (code >= 0b111010) is way too
529 * 4460 : supplies vdd_core
531 if (omap4_rev < OMAP4460_ES1_0) {
533 do_scale_vcore(SMPS_REG_ADDR_VCORE1, volt);
536 do_scale_vcore(SMPS_REG_ADDR_VCORE1, volt);
539 /* VCORE 2 - supplies vdd_iva */
541 do_scale_vcore(SMPS_REG_ADDR_VCORE2, volt);
545 * 4430 : supplies vdd_core
546 * 4460 : not connected
548 if (omap4_rev < OMAP4460_ES1_0) {
550 do_scale_vcore(SMPS_REG_ADDR_VCORE3, volt);
554 static inline void enable_clock_domain(u32 *const clkctrl_reg, u32 enable_mode)
556 clrsetbits_le32(clkctrl_reg, CD_CLKCTRL_CLKTRCTRL_MASK,
557 enable_mode << CD_CLKCTRL_CLKTRCTRL_SHIFT);
558 debug("Enable clock domain - 0x%08x\n", clkctrl_reg);
561 static inline void wait_for_clk_enable(u32 *clkctrl_addr)
563 u32 clkctrl, idlest = MODULE_CLKCTRL_IDLEST_DISABLED;
566 while ((idlest == MODULE_CLKCTRL_IDLEST_DISABLED) ||
567 (idlest == MODULE_CLKCTRL_IDLEST_TRANSITIONING)) {
569 clkctrl = readl(clkctrl_addr);
570 idlest = (clkctrl & MODULE_CLKCTRL_IDLEST_MASK) >>
571 MODULE_CLKCTRL_IDLEST_SHIFT;
573 printf("Clock enable failed for 0x%p idlest 0x%x\n",
574 clkctrl_addr, clkctrl);
580 static inline void enable_clock_module(u32 *const clkctrl_addr, u32 enable_mode,
583 clrsetbits_le32(clkctrl_addr, MODULE_CLKCTRL_MODULEMODE_MASK,
584 enable_mode << MODULE_CLKCTRL_MODULEMODE_SHIFT);
585 debug("Enable clock module - 0x%08x\n", clkctrl_addr);
587 wait_for_clk_enable(clkctrl_addr);
591 * Enable essential clock domains, modules and
592 * do some additional special settings needed
594 static void enable_basic_clocks(void)
596 u32 i, max = 100, wait_for_enable = 1;
597 u32 *const clk_domains_essential[] = {
598 &prcm->cm_l4per_clkstctrl,
599 &prcm->cm_l3init_clkstctrl,
600 &prcm->cm_memif_clkstctrl,
601 &prcm->cm_l4cfg_clkstctrl,
605 u32 *const clk_modules_hw_auto_essential[] = {
606 &prcm->cm_wkup_gpio1_clkctrl,
607 &prcm->cm_l4per_gpio2_clkctrl,
608 &prcm->cm_l4per_gpio3_clkctrl,
609 &prcm->cm_l4per_gpio4_clkctrl,
610 &prcm->cm_l4per_gpio5_clkctrl,
611 &prcm->cm_l4per_gpio6_clkctrl,
612 &prcm->cm_memif_emif_1_clkctrl,
613 &prcm->cm_memif_emif_2_clkctrl,
614 &prcm->cm_l3init_hsusbotg_clkctrl,
615 &prcm->cm_l3init_usbphy_clkctrl,
616 &prcm->cm_l4cfg_l4_cfg_clkctrl,
620 u32 *const clk_modules_explicit_en_essential[] = {
621 &prcm->cm_l4per_gptimer2_clkctrl,
622 &prcm->cm_l3init_hsmmc1_clkctrl,
623 &prcm->cm_l3init_hsmmc2_clkctrl,
624 &prcm->cm_l4per_mcspi1_clkctrl,
625 &prcm->cm_wkup_gptimer1_clkctrl,
626 &prcm->cm_l4per_i2c1_clkctrl,
627 &prcm->cm_l4per_i2c2_clkctrl,
628 &prcm->cm_l4per_i2c3_clkctrl,
629 &prcm->cm_l4per_i2c4_clkctrl,
630 &prcm->cm_wkup_wdtimer2_clkctrl,
631 &prcm->cm_l4per_uart3_clkctrl,
635 /* Enable optional additional functional clock for GPIO4 */
636 setbits_le32(&prcm->cm_l4per_gpio4_clkctrl,
637 GPIO4_CLKCTRL_OPTFCLKEN_MASK);
639 /* Enable 96 MHz clock for MMC1 & MMC2 */
640 setbits_le32(&prcm->cm_l3init_hsmmc1_clkctrl,
641 HSMMC_CLKCTRL_CLKSEL_MASK);
642 setbits_le32(&prcm->cm_l3init_hsmmc2_clkctrl,
643 HSMMC_CLKCTRL_CLKSEL_MASK);
645 /* Select 32KHz clock as the source of GPTIMER1 */
646 setbits_le32(&prcm->cm_wkup_gptimer1_clkctrl,
647 GPTIMER1_CLKCTRL_CLKSEL_MASK);
649 /* Enable optional 48M functional clock for USB PHY */
650 setbits_le32(&prcm->cm_l3init_usbphy_clkctrl,
651 USBPHY_CLKCTRL_OPTFCLKEN_PHY_48M_MASK);
653 /* Put the clock domains in SW_WKUP mode */
654 for (i = 0; (i < max) && clk_domains_essential[i]; i++) {
655 enable_clock_domain(clk_domains_essential[i],
656 CD_CLKCTRL_CLKTRCTRL_SW_WKUP);
659 /* Clock modules that need to be put in HW_AUTO */
660 for (i = 0; (i < max) && clk_modules_hw_auto_essential[i]; i++) {
661 enable_clock_module(clk_modules_hw_auto_essential[i],
662 MODULE_CLKCTRL_MODULEMODE_HW_AUTO,
666 /* Clock modules that need to be put in SW_EXPLICIT_EN mode */
667 for (i = 0; (i < max) && clk_modules_explicit_en_essential[i]; i++) {
668 enable_clock_module(clk_modules_explicit_en_essential[i],
669 MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN,
673 /* Put the clock domains in HW_AUTO mode now */
674 for (i = 0; (i < max) && clk_domains_essential[i]; i++) {
675 enable_clock_domain(clk_domains_essential[i],
676 CD_CLKCTRL_CLKTRCTRL_HW_AUTO);
681 * Enable non-essential clock domains, modules and
682 * do some additional special settings needed
684 static void enable_non_essential_clocks(void)
686 u32 i, max = 100, wait_for_enable = 0;
687 u32 *const clk_domains_non_essential[] = {
688 &prcm->cm_mpu_m3_clkstctrl,
689 &prcm->cm_ivahd_clkstctrl,
690 &prcm->cm_dsp_clkstctrl,
691 &prcm->cm_dss_clkstctrl,
692 &prcm->cm_sgx_clkstctrl,
693 &prcm->cm1_abe_clkstctrl,
694 &prcm->cm_c2c_clkstctrl,
695 &prcm->cm_cam_clkstctrl,
696 &prcm->cm_dss_clkstctrl,
697 &prcm->cm_sdma_clkstctrl,
701 u32 *const clk_modules_hw_auto_non_essential[] = {
702 &prcm->cm_mpu_m3_mpu_m3_clkctrl,
703 &prcm->cm_ivahd_ivahd_clkctrl,
704 &prcm->cm_ivahd_sl2_clkctrl,
705 &prcm->cm_dsp_dsp_clkctrl,
706 &prcm->cm_l3_2_gpmc_clkctrl,
707 &prcm->cm_l3instr_l3_3_clkctrl,
708 &prcm->cm_l3instr_l3_instr_clkctrl,
709 &prcm->cm_l3instr_intrconn_wp1_clkctrl,
710 &prcm->cm_l3init_hsi_clkctrl,
711 &prcm->cm_l3init_hsusbtll_clkctrl,
715 u32 *const clk_modules_explicit_en_non_essential[] = {
716 &prcm->cm1_abe_aess_clkctrl,
717 &prcm->cm1_abe_pdm_clkctrl,
718 &prcm->cm1_abe_dmic_clkctrl,
719 &prcm->cm1_abe_mcasp_clkctrl,
720 &prcm->cm1_abe_mcbsp1_clkctrl,
721 &prcm->cm1_abe_mcbsp2_clkctrl,
722 &prcm->cm1_abe_mcbsp3_clkctrl,
723 &prcm->cm1_abe_slimbus_clkctrl,
724 &prcm->cm1_abe_timer5_clkctrl,
725 &prcm->cm1_abe_timer6_clkctrl,
726 &prcm->cm1_abe_timer7_clkctrl,
727 &prcm->cm1_abe_timer8_clkctrl,
728 &prcm->cm1_abe_wdt3_clkctrl,
729 &prcm->cm_l4per_gptimer9_clkctrl,
730 &prcm->cm_l4per_gptimer10_clkctrl,
731 &prcm->cm_l4per_gptimer11_clkctrl,
732 &prcm->cm_l4per_gptimer3_clkctrl,
733 &prcm->cm_l4per_gptimer4_clkctrl,
734 &prcm->cm_l4per_hdq1w_clkctrl,
735 &prcm->cm_l4per_mcbsp4_clkctrl,
736 &prcm->cm_l4per_mcspi2_clkctrl,
737 &prcm->cm_l4per_mcspi3_clkctrl,
738 &prcm->cm_l4per_mcspi4_clkctrl,
739 &prcm->cm_l4per_mmcsd3_clkctrl,
740 &prcm->cm_l4per_mmcsd4_clkctrl,
741 &prcm->cm_l4per_mmcsd5_clkctrl,
742 &prcm->cm_l4per_uart1_clkctrl,
743 &prcm->cm_l4per_uart2_clkctrl,
744 &prcm->cm_l4per_uart4_clkctrl,
745 &prcm->cm_wkup_keyboard_clkctrl,
746 &prcm->cm_wkup_wdtimer2_clkctrl,
747 &prcm->cm_cam_iss_clkctrl,
748 &prcm->cm_cam_fdif_clkctrl,
749 &prcm->cm_dss_dss_clkctrl,
750 &prcm->cm_sgx_sgx_clkctrl,
751 &prcm->cm_l3init_hsusbhost_clkctrl,
752 &prcm->cm_l3init_fsusb_clkctrl,
756 /* Enable optional functional clock for ISS */
757 setbits_le32(&prcm->cm_cam_iss_clkctrl, ISS_CLKCTRL_OPTFCLKEN_MASK);
759 /* Enable all optional functional clocks of DSS */
760 setbits_le32(&prcm->cm_dss_dss_clkctrl, DSS_CLKCTRL_OPTFCLKEN_MASK);
763 /* Put the clock domains in SW_WKUP mode */
764 for (i = 0; (i < max) && clk_domains_non_essential[i]; i++) {
765 enable_clock_domain(clk_domains_non_essential[i],
766 CD_CLKCTRL_CLKTRCTRL_SW_WKUP);
769 /* Clock modules that need to be put in HW_AUTO */
770 for (i = 0; (i < max) && clk_modules_hw_auto_non_essential[i]; i++) {
771 enable_clock_module(clk_modules_hw_auto_non_essential[i],
772 MODULE_CLKCTRL_MODULEMODE_HW_AUTO,
776 /* Clock modules that need to be put in SW_EXPLICIT_EN mode */
777 for (i = 0; (i < max) && clk_modules_explicit_en_non_essential[i];
779 enable_clock_module(clk_modules_explicit_en_non_essential[i],
780 MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN,
784 /* Put the clock domains in HW_AUTO mode now */
785 for (i = 0; (i < max) && clk_domains_non_essential[i]; i++) {
786 enable_clock_domain(clk_domains_non_essential[i],
787 CD_CLKCTRL_CLKTRCTRL_HW_AUTO);
790 /* Put camera module in no sleep mode */
791 clrsetbits_le32(&prcm->cm_cam_clkstctrl, MODULE_CLKCTRL_MODULEMODE_MASK,
792 CD_CLKCTRL_CLKTRCTRL_NO_SLEEP <<
793 MODULE_CLKCTRL_MODULEMODE_SHIFT);
797 void freq_update_core(void)
799 u32 freq_config1 = 0;
800 const struct dpll_params *core_dpll_params;
802 core_dpll_params = get_core_dpll_params();
803 /* Put EMIF clock domain in sw wakeup mode */
804 enable_clock_domain(&prcm->cm_memif_clkstctrl,
805 CD_CLKCTRL_CLKTRCTRL_SW_WKUP);
806 wait_for_clk_enable(&prcm->cm_memif_emif_1_clkctrl);
807 wait_for_clk_enable(&prcm->cm_memif_emif_2_clkctrl);
809 freq_config1 = SHADOW_FREQ_CONFIG1_FREQ_UPDATE_MASK |
810 SHADOW_FREQ_CONFIG1_DLL_RESET_MASK;
812 freq_config1 |= (DPLL_EN_LOCK << SHADOW_FREQ_CONFIG1_DPLL_EN_SHIFT) &
813 SHADOW_FREQ_CONFIG1_DPLL_EN_MASK;
815 freq_config1 |= (core_dpll_params->m2 <<
816 SHADOW_FREQ_CONFIG1_M2_DIV_SHIFT) &
817 SHADOW_FREQ_CONFIG1_M2_DIV_MASK;
819 writel(freq_config1, &prcm->cm_shadow_freq_config1);
820 if (!wait_on_value(SHADOW_FREQ_CONFIG1_FREQ_UPDATE_MASK, 0,
821 &prcm->cm_shadow_freq_config1, LDELAY)) {
822 puts("FREQ UPDATE procedure failed!!");
826 /* Put EMIF clock domain back in hw auto mode */
827 enable_clock_domain(&prcm->cm_memif_clkstctrl,
828 CD_CLKCTRL_CLKTRCTRL_HW_AUTO);
829 wait_for_clk_enable(&prcm->cm_memif_emif_1_clkctrl);
830 wait_for_clk_enable(&prcm->cm_memif_emif_2_clkctrl);
833 void bypass_dpll(u32 *const base)
835 do_bypass_dpll(base);
836 wait_for_bypass(base);
839 void lock_dpll(u32 *const base)
845 void setup_clocks_for_console(void)
847 /* Do not add any spl_debug prints in this function */
848 clrsetbits_le32(&prcm->cm_l4per_clkstctrl, CD_CLKCTRL_CLKTRCTRL_MASK,
849 CD_CLKCTRL_CLKTRCTRL_SW_WKUP <<
850 CD_CLKCTRL_CLKTRCTRL_SHIFT);
852 /* Enable all UARTs - console will be on one of them */
853 clrsetbits_le32(&prcm->cm_l4per_uart1_clkctrl,
854 MODULE_CLKCTRL_MODULEMODE_MASK,
855 MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN <<
856 MODULE_CLKCTRL_MODULEMODE_SHIFT);
858 clrsetbits_le32(&prcm->cm_l4per_uart2_clkctrl,
859 MODULE_CLKCTRL_MODULEMODE_MASK,
860 MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN <<
861 MODULE_CLKCTRL_MODULEMODE_SHIFT);
863 clrsetbits_le32(&prcm->cm_l4per_uart3_clkctrl,
864 MODULE_CLKCTRL_MODULEMODE_MASK,
865 MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN <<
866 MODULE_CLKCTRL_MODULEMODE_SHIFT);
868 clrsetbits_le32(&prcm->cm_l4per_uart3_clkctrl,
869 MODULE_CLKCTRL_MODULEMODE_MASK,
870 MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN <<
871 MODULE_CLKCTRL_MODULEMODE_SHIFT);
873 clrsetbits_le32(&prcm->cm_l4per_clkstctrl, CD_CLKCTRL_CLKTRCTRL_MASK,
874 CD_CLKCTRL_CLKTRCTRL_HW_AUTO <<
875 CD_CLKCTRL_CLKTRCTRL_SHIFT);
880 switch (omap4_hw_init_context()) {
881 case OMAP_INIT_CONTEXT_SPL:
882 case OMAP_INIT_CONTEXT_UBOOT_FROM_NOR:
883 case OMAP_INIT_CONTEXT_UBOOT_AFTER_CH:
884 enable_basic_clocks();
887 setup_non_essential_dplls();
888 enable_non_essential_clocks();