2 * Copyright (C) 2010-2011 Freescale Semiconductor, Inc.
4 * SPDX-License-Identifier: GPL-2.0+
10 #include <asm/errno.h>
11 #include <asm/arch/imx-regs.h>
12 #include <asm/arch/crm_regs.h>
13 #include <asm/arch/clock.h>
14 #include <asm/arch/sys_proto.h>
17 PLL_SYS, /* System PLL */
18 PLL_BUS, /* System Bus PLL*/
19 PLL_USBOTG, /* OTG USB PLL */
20 PLL_ENET, /* ENET PLL */
23 struct mxc_ccm_reg *imx_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
25 #ifdef CONFIG_MXC_OCOTP
26 void enable_ocotp_clk(unsigned char enable)
30 reg = __raw_readl(&imx_ccm->CCGR2);
32 reg |= MXC_CCM_CCGR2_OCOTP_CTRL_MASK;
34 reg &= ~MXC_CCM_CCGR2_OCOTP_CTRL_MASK;
35 __raw_writel(reg, &imx_ccm->CCGR2);
39 #ifdef CONFIG_NAND_MXS
40 void setup_gpmi_io_clk(u32 cfg)
42 /* Disable clocks per ERR007177 from MX6 errata */
43 clrbits_le32(&imx_ccm->CCGR4,
44 MXC_CCM_CCGR4_RAWNAND_U_BCH_INPUT_APB_MASK |
45 MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_BCH_MASK |
46 MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_GPMI_IO_MASK |
47 MXC_CCM_CCGR4_RAWNAND_U_GPMI_INPUT_APB_MASK |
48 MXC_CCM_CCGR4_PL301_MX6QPER1_BCH_MASK);
50 clrbits_le32(&imx_ccm->CCGR2, MXC_CCM_CCGR2_IOMUX_IPT_CLK_IO_MASK);
52 clrsetbits_le32(&imx_ccm->cs2cdr,
53 MXC_CCM_CS2CDR_ENFC_CLK_PODF_MASK |
54 MXC_CCM_CS2CDR_ENFC_CLK_PRED_MASK |
55 MXC_CCM_CS2CDR_ENFC_CLK_SEL_MASK,
58 setbits_le32(&imx_ccm->CCGR2, MXC_CCM_CCGR2_IOMUX_IPT_CLK_IO_MASK);
59 setbits_le32(&imx_ccm->CCGR4,
60 MXC_CCM_CCGR4_RAWNAND_U_BCH_INPUT_APB_MASK |
61 MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_BCH_MASK |
62 MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_GPMI_IO_MASK |
63 MXC_CCM_CCGR4_RAWNAND_U_GPMI_INPUT_APB_MASK |
64 MXC_CCM_CCGR4_PL301_MX6QPER1_BCH_MASK);
68 void enable_usboh3_clk(unsigned char enable)
72 reg = __raw_readl(&imx_ccm->CCGR6);
74 reg |= MXC_CCM_CCGR6_USBOH3_MASK;
76 reg &= ~(MXC_CCM_CCGR6_USBOH3_MASK);
77 __raw_writel(reg, &imx_ccm->CCGR6);
81 #if defined(CONFIG_FEC_MXC) && !defined(CONFIG_MX6SX)
82 void enable_enet_clk(unsigned char enable)
84 u32 mask = MXC_CCM_CCGR1_ENET_CLK_ENABLE_MASK;
87 setbits_le32(&imx_ccm->CCGR1, mask);
89 clrbits_le32(&imx_ccm->CCGR1, mask);
93 #ifdef CONFIG_MXC_UART
94 void enable_uart_clk(unsigned char enable)
96 u32 mask = MXC_CCM_CCGR5_UART_MASK | MXC_CCM_CCGR5_UART_SERIAL_MASK;
99 setbits_le32(&imx_ccm->CCGR5, mask);
101 clrbits_le32(&imx_ccm->CCGR5, mask);
106 int enable_usdhc_clk(unsigned char enable, unsigned bus_num)
113 mask = MXC_CCM_CCGR_CG_MASK << (bus_num * 2 + 2);
115 setbits_le32(&imx_ccm->CCGR6, mask);
117 clrbits_le32(&imx_ccm->CCGR6, mask);
123 #ifdef CONFIG_SYS_I2C_MXC
124 /* i2c_num can be from 0 - 3 */
125 int enable_i2c_clk(unsigned char enable, unsigned i2c_num)
134 mask = MXC_CCM_CCGR_CG_MASK
135 << (MXC_CCM_CCGR2_I2C1_SERIAL_OFFSET
137 reg = __raw_readl(&imx_ccm->CCGR2);
142 __raw_writel(reg, &imx_ccm->CCGR2);
144 if (is_cpu_type(MXC_CPU_MX6SX)) {
145 mask = MXC_CCM_CCGR6_I2C4_MASK;
146 addr = &imx_ccm->CCGR6;
148 mask = MXC_CCM_CCGR1_I2C4_SERIAL_MASK;
149 addr = &imx_ccm->CCGR1;
151 reg = __raw_readl(addr);
156 __raw_writel(reg, addr);
162 /* spi_num can be from 0 - SPI_MAX_NUM */
163 int enable_spi_clk(unsigned char enable, unsigned spi_num)
168 if (spi_num > SPI_MAX_NUM)
171 mask = MXC_CCM_CCGR_CG_MASK << (spi_num << 1);
172 reg = __raw_readl(&imx_ccm->CCGR1);
177 __raw_writel(reg, &imx_ccm->CCGR1);
180 static u32 decode_pll(enum pll_clocks pll, u32 infreq)
186 div = __raw_readl(&imx_ccm->analog_pll_sys);
187 div &= BM_ANADIG_PLL_SYS_DIV_SELECT;
189 return (infreq * div) >> 1;
191 div = __raw_readl(&imx_ccm->analog_pll_528);
192 div &= BM_ANADIG_PLL_528_DIV_SELECT;
194 return infreq * (20 + (div << 1));
196 div = __raw_readl(&imx_ccm->analog_usb1_pll_480_ctrl);
197 div &= BM_ANADIG_USB1_PLL_480_CTRL_DIV_SELECT;
199 return infreq * (20 + (div << 1));
201 div = __raw_readl(&imx_ccm->analog_pll_enet);
202 div &= BM_ANADIG_PLL_ENET_DIV_SELECT;
204 return 25000000 * (div + (div >> 1) + 1);
210 static u32 mxc_get_pll_pfd(enum pll_clocks pll, int pfd_num)
218 /* No PFD3 on PPL2 */
221 div = __raw_readl(&imx_ccm->analog_pfd_528);
222 freq = (u64)decode_pll(PLL_BUS, MXC_HCLK);
225 div = __raw_readl(&imx_ccm->analog_pfd_480);
226 freq = (u64)decode_pll(PLL_USBOTG, MXC_HCLK);
229 /* No PFD on other PLL */
233 return lldiv(freq * 18, (div & ANATOP_PFD_FRAC_MASK(pfd_num)) >>
234 ANATOP_PFD_FRAC_SHIFT(pfd_num));
237 static u32 get_mcu_main_clk(void)
241 reg = __raw_readl(&imx_ccm->cacrr);
242 reg &= MXC_CCM_CACRR_ARM_PODF_MASK;
243 reg >>= MXC_CCM_CACRR_ARM_PODF_OFFSET;
244 freq = decode_pll(PLL_SYS, MXC_HCLK);
246 return freq / (reg + 1);
249 u32 get_periph_clk(void)
253 reg = __raw_readl(&imx_ccm->cbcdr);
254 if (reg & MXC_CCM_CBCDR_PERIPH_CLK_SEL) {
255 reg = __raw_readl(&imx_ccm->cbcmr);
256 reg &= MXC_CCM_CBCMR_PERIPH_CLK2_SEL_MASK;
257 reg >>= MXC_CCM_CBCMR_PERIPH_CLK2_SEL_OFFSET;
261 freq = decode_pll(PLL_USBOTG, MXC_HCLK);
271 reg = __raw_readl(&imx_ccm->cbcmr);
272 reg &= MXC_CCM_CBCMR_PRE_PERIPH_CLK_SEL_MASK;
273 reg >>= MXC_CCM_CBCMR_PRE_PERIPH_CLK_SEL_OFFSET;
277 freq = decode_pll(PLL_BUS, MXC_HCLK);
280 freq = mxc_get_pll_pfd(PLL_BUS, 2);
283 freq = mxc_get_pll_pfd(PLL_BUS, 0);
286 /* static / 2 divider */
287 freq = mxc_get_pll_pfd(PLL_BUS, 2) / 2;
297 static u32 get_ipg_clk(void)
301 reg = __raw_readl(&imx_ccm->cbcdr);
302 reg &= MXC_CCM_CBCDR_IPG_PODF_MASK;
303 ipg_podf = reg >> MXC_CCM_CBCDR_IPG_PODF_OFFSET;
305 return get_ahb_clk() / (ipg_podf + 1);
308 static u32 get_ipg_per_clk(void)
310 u32 reg, perclk_podf;
312 reg = __raw_readl(&imx_ccm->cscmr1);
313 if (is_cpu_type(MXC_CPU_MX6SL) || is_cpu_type(MXC_CPU_MX6SX) ||
315 if (reg & MXC_CCM_CSCMR1_PER_CLK_SEL_MASK)
316 return MXC_HCLK; /* OSC 24Mhz */
319 perclk_podf = reg & MXC_CCM_CSCMR1_PERCLK_PODF_MASK;
321 return get_ipg_clk() / (perclk_podf + 1);
324 static u32 get_uart_clk(void)
327 u32 freq = decode_pll(PLL_USBOTG, MXC_HCLK) / 6; /* static divider */
328 reg = __raw_readl(&imx_ccm->cscdr1);
330 if (is_cpu_type(MXC_CPU_MX6SL) || is_cpu_type(MXC_CPU_MX6SX) ||
332 if (reg & MXC_CCM_CSCDR1_UART_CLK_SEL)
336 reg &= MXC_CCM_CSCDR1_UART_CLK_PODF_MASK;
337 uart_podf = reg >> MXC_CCM_CSCDR1_UART_CLK_PODF_OFFSET;
339 return freq / (uart_podf + 1);
342 static u32 get_cspi_clk(void)
346 reg = __raw_readl(&imx_ccm->cscdr2);
347 cspi_podf = (reg & MXC_CCM_CSCDR2_ECSPI_CLK_PODF_MASK) >>
348 MXC_CCM_CSCDR2_ECSPI_CLK_PODF_OFFSET;
351 if (reg & MXC_CCM_CSCDR2_ECSPI_CLK_SEL_MASK)
352 return MXC_HCLK / (cspi_podf + 1);
355 return decode_pll(PLL_USBOTG, MXC_HCLK) / (8 * (cspi_podf + 1));
358 static u32 get_axi_clk(void)
360 u32 root_freq, axi_podf;
361 u32 cbcdr = __raw_readl(&imx_ccm->cbcdr);
363 axi_podf = cbcdr & MXC_CCM_CBCDR_AXI_PODF_MASK;
364 axi_podf >>= MXC_CCM_CBCDR_AXI_PODF_OFFSET;
366 if (cbcdr & MXC_CCM_CBCDR_AXI_SEL) {
367 if (cbcdr & MXC_CCM_CBCDR_AXI_ALT_SEL)
368 root_freq = mxc_get_pll_pfd(PLL_BUS, 2);
370 root_freq = mxc_get_pll_pfd(PLL_USBOTG, 1);
372 root_freq = get_periph_clk();
374 return root_freq / (axi_podf + 1);
377 static u32 get_emi_slow_clk(void)
379 u32 emi_clk_sel, emi_slow_podf, cscmr1, root_freq = 0;
381 cscmr1 = __raw_readl(&imx_ccm->cscmr1);
382 emi_clk_sel = cscmr1 & MXC_CCM_CSCMR1_ACLK_EMI_SLOW_MASK;
383 emi_clk_sel >>= MXC_CCM_CSCMR1_ACLK_EMI_SLOW_OFFSET;
384 emi_slow_podf = cscmr1 & MXC_CCM_CSCMR1_ACLK_EMI_SLOW_PODF_MASK;
385 emi_slow_podf >>= MXC_CCM_CSCMR1_ACLK_EMI_SLOW_PODF_OFFSET;
387 switch (emi_clk_sel) {
389 root_freq = get_axi_clk();
392 root_freq = decode_pll(PLL_USBOTG, MXC_HCLK);
395 root_freq = mxc_get_pll_pfd(PLL_BUS, 2);
398 root_freq = mxc_get_pll_pfd(PLL_BUS, 0);
402 return root_freq / (emi_slow_podf + 1);
405 #if (defined(CONFIG_MX6SL) || defined(CONFIG_MX6SX))
406 static u32 get_mmdc_ch0_clk(void)
408 u32 cbcmr = __raw_readl(&imx_ccm->cbcmr);
409 u32 cbcdr = __raw_readl(&imx_ccm->cbcdr);
412 podf = (cbcdr & MXC_CCM_CBCDR_MMDC_CH1_PODF_MASK) \
413 >> MXC_CCM_CBCDR_MMDC_CH1_PODF_OFFSET;
415 switch ((cbcmr & MXC_CCM_CBCMR_PRE_PERIPH2_CLK_SEL_MASK) >>
416 MXC_CCM_CBCMR_PRE_PERIPH2_CLK_SEL_OFFSET) {
418 freq = decode_pll(PLL_BUS, MXC_HCLK);
421 freq = mxc_get_pll_pfd(PLL_BUS, 2);
424 freq = mxc_get_pll_pfd(PLL_BUS, 0);
427 /* static / 2 divider */
428 freq = mxc_get_pll_pfd(PLL_BUS, 2) / 2;
431 return freq / (podf + 1);
435 static u32 get_mmdc_ch0_clk(void)
437 u32 cbcdr = __raw_readl(&imx_ccm->cbcdr);
438 u32 mmdc_ch0_podf = (cbcdr & MXC_CCM_CBCDR_MMDC_CH0_PODF_MASK) >>
439 MXC_CCM_CBCDR_MMDC_CH0_PODF_OFFSET;
441 return get_periph_clk() / (mmdc_ch0_podf + 1);
446 /* qspi_num can be from 0 - 1 */
447 void enable_qspi_clk(int qspi_num)
450 /* Enable QuadSPI clock */
453 /* disable the clock gate */
454 clrbits_le32(&imx_ccm->CCGR3, MXC_CCM_CCGR3_QSPI1_MASK);
456 /* set 50M : (50 = 396 / 2 / 4) */
457 reg = readl(&imx_ccm->cscmr1);
458 reg &= ~(MXC_CCM_CSCMR1_QSPI1_PODF_MASK |
459 MXC_CCM_CSCMR1_QSPI1_CLK_SEL_MASK);
460 reg |= ((1 << MXC_CCM_CSCMR1_QSPI1_PODF_OFFSET) |
461 (2 << MXC_CCM_CSCMR1_QSPI1_CLK_SEL_OFFSET));
462 writel(reg, &imx_ccm->cscmr1);
464 /* enable the clock gate */
465 setbits_le32(&imx_ccm->CCGR3, MXC_CCM_CCGR3_QSPI1_MASK);
469 * disable the clock gate
470 * QSPI2 and GPMI_BCH_INPUT_GPMI_IO share the same clock gate,
471 * disable both of them.
473 clrbits_le32(&imx_ccm->CCGR4, MXC_CCM_CCGR4_QSPI2_ENFC_MASK |
474 MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_GPMI_IO_MASK);
476 /* set 50M : (50 = 396 / 2 / 4) */
477 reg = readl(&imx_ccm->cs2cdr);
478 reg &= ~(MXC_CCM_CS2CDR_QSPI2_CLK_PODF_MASK |
479 MXC_CCM_CS2CDR_QSPI2_CLK_PRED_MASK |
480 MXC_CCM_CS2CDR_QSPI2_CLK_SEL_MASK);
481 reg |= (MXC_CCM_CS2CDR_QSPI2_CLK_PRED(0x1) |
482 MXC_CCM_CS2CDR_QSPI2_CLK_SEL(0x3));
483 writel(reg, &imx_ccm->cs2cdr);
485 /*enable the clock gate*/
486 setbits_le32(&imx_ccm->CCGR4, MXC_CCM_CCGR4_QSPI2_ENFC_MASK |
487 MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_GPMI_IO_MASK);
495 #ifdef CONFIG_FEC_MXC
496 int enable_fec_anatop_clock(enum enet_freq freq)
499 s32 timeout = 100000;
501 struct anatop_regs __iomem *anatop =
502 (struct anatop_regs __iomem *)ANATOP_BASE_ADDR;
504 if (freq < ENET_25MHZ || freq > ENET_125MHZ)
507 reg = readl(&anatop->pll_enet);
508 reg &= ~BM_ANADIG_PLL_ENET_DIV_SELECT;
511 if ((reg & BM_ANADIG_PLL_ENET_POWERDOWN) ||
512 (!(reg & BM_ANADIG_PLL_ENET_LOCK))) {
513 reg &= ~BM_ANADIG_PLL_ENET_POWERDOWN;
514 writel(reg, &anatop->pll_enet);
516 if (readl(&anatop->pll_enet) & BM_ANADIG_PLL_ENET_LOCK)
523 /* Enable FEC clock */
524 reg |= BM_ANADIG_PLL_ENET_ENABLE;
525 reg &= ~BM_ANADIG_PLL_ENET_BYPASS;
526 writel(reg, &anatop->pll_enet);
530 * Set enet ahb clock to 200MHz
531 * pll2_pfd2_396m-> ENET_PODF-> ENET_AHB
533 reg = readl(&imx_ccm->chsccdr);
534 reg &= ~(MXC_CCM_CHSCCDR_ENET_PRE_CLK_SEL_MASK
535 | MXC_CCM_CHSCCDR_ENET_PODF_MASK
536 | MXC_CCM_CHSCCDR_ENET_CLK_SEL_MASK);
538 reg |= (4 << MXC_CCM_CHSCCDR_ENET_PRE_CLK_SEL_OFFSET);
540 reg |= (1 << MXC_CCM_CHSCCDR_ENET_PODF_OFFSET);
541 reg |= (0 << MXC_CCM_CHSCCDR_ENET_CLK_SEL_OFFSET);
542 writel(reg, &imx_ccm->chsccdr);
544 /* Enable enet system clock */
545 reg = readl(&imx_ccm->CCGR3);
546 reg |= MXC_CCM_CCGR3_ENET_MASK;
547 writel(reg, &imx_ccm->CCGR3);
553 static u32 get_usdhc_clk(u32 port)
555 u32 root_freq = 0, usdhc_podf = 0, clk_sel = 0;
556 u32 cscmr1 = __raw_readl(&imx_ccm->cscmr1);
557 u32 cscdr1 = __raw_readl(&imx_ccm->cscdr1);
561 usdhc_podf = (cscdr1 & MXC_CCM_CSCDR1_USDHC1_PODF_MASK) >>
562 MXC_CCM_CSCDR1_USDHC1_PODF_OFFSET;
563 clk_sel = cscmr1 & MXC_CCM_CSCMR1_USDHC1_CLK_SEL;
567 usdhc_podf = (cscdr1 & MXC_CCM_CSCDR1_USDHC2_PODF_MASK) >>
568 MXC_CCM_CSCDR1_USDHC2_PODF_OFFSET;
569 clk_sel = cscmr1 & MXC_CCM_CSCMR1_USDHC2_CLK_SEL;
573 usdhc_podf = (cscdr1 & MXC_CCM_CSCDR1_USDHC3_PODF_MASK) >>
574 MXC_CCM_CSCDR1_USDHC3_PODF_OFFSET;
575 clk_sel = cscmr1 & MXC_CCM_CSCMR1_USDHC3_CLK_SEL;
579 usdhc_podf = (cscdr1 & MXC_CCM_CSCDR1_USDHC4_PODF_MASK) >>
580 MXC_CCM_CSCDR1_USDHC4_PODF_OFFSET;
581 clk_sel = cscmr1 & MXC_CCM_CSCMR1_USDHC4_CLK_SEL;
589 root_freq = mxc_get_pll_pfd(PLL_BUS, 0);
591 root_freq = mxc_get_pll_pfd(PLL_BUS, 2);
593 return root_freq / (usdhc_podf + 1);
596 u32 imx_get_uartclk(void)
598 return get_uart_clk();
601 u32 imx_get_fecclk(void)
603 return mxc_get_clock(MXC_IPG_CLK);
606 static int enable_enet_pll(uint32_t en)
608 struct mxc_ccm_reg *const imx_ccm
609 = (struct mxc_ccm_reg *) CCM_BASE_ADDR;
610 s32 timeout = 100000;
614 reg = readl(&imx_ccm->analog_pll_enet);
615 reg &= ~BM_ANADIG_PLL_SYS_POWERDOWN;
616 writel(reg, &imx_ccm->analog_pll_enet);
617 reg |= BM_ANADIG_PLL_SYS_ENABLE;
619 if (readl(&imx_ccm->analog_pll_enet) & BM_ANADIG_PLL_SYS_LOCK)
624 reg &= ~BM_ANADIG_PLL_SYS_BYPASS;
625 writel(reg, &imx_ccm->analog_pll_enet);
627 writel(reg, &imx_ccm->analog_pll_enet);
632 static void ungate_sata_clock(void)
634 struct mxc_ccm_reg *const imx_ccm =
635 (struct mxc_ccm_reg *)CCM_BASE_ADDR;
637 /* Enable SATA clock. */
638 setbits_le32(&imx_ccm->CCGR5, MXC_CCM_CCGR5_SATA_MASK);
642 static void ungate_pcie_clock(void)
644 struct mxc_ccm_reg *const imx_ccm =
645 (struct mxc_ccm_reg *)CCM_BASE_ADDR;
647 /* Enable PCIe clock. */
648 setbits_le32(&imx_ccm->CCGR4, MXC_CCM_CCGR4_PCIE_MASK);
652 int enable_sata_clock(void)
655 return enable_enet_pll(BM_ANADIG_PLL_ENET_ENABLE_SATA);
658 void disable_sata_clock(void)
660 struct mxc_ccm_reg *const imx_ccm =
661 (struct mxc_ccm_reg *)CCM_BASE_ADDR;
663 clrbits_le32(&imx_ccm->CCGR5, MXC_CCM_CCGR5_SATA_MASK);
667 int enable_pcie_clock(void)
669 struct anatop_regs *anatop_regs =
670 (struct anatop_regs *)ANATOP_BASE_ADDR;
671 struct mxc_ccm_reg *ccm_regs = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
677 * The register ANATOP_MISC1 is not documented in the Freescale
678 * MX6RM. The register that is mapped in the ANATOP space and
679 * marked as ANATOP_MISC1 is actually documented in the PMU section
680 * of the datasheet as PMU_MISC1.
682 * Switch LVDS clock source to SATA (0xb) on mx6q/dl or PCI (0xa) on
683 * mx6sx, disable clock INPUT and enable clock OUTPUT. This is important
684 * for PCI express link that is clocked from the i.MX6.
686 #define ANADIG_ANA_MISC1_LVDSCLK1_IBEN (1 << 12)
687 #define ANADIG_ANA_MISC1_LVDSCLK1_OBEN (1 << 10)
688 #define ANADIG_ANA_MISC1_LVDS1_CLK_SEL_MASK 0x0000001F
689 #define ANADIG_ANA_MISC1_LVDS1_CLK_SEL_PCIE_REF 0xa
690 #define ANADIG_ANA_MISC1_LVDS1_CLK_SEL_SATA_REF 0xb
692 if (is_cpu_type(MXC_CPU_MX6SX))
693 lvds1_clk_sel = ANADIG_ANA_MISC1_LVDS1_CLK_SEL_PCIE_REF;
695 lvds1_clk_sel = ANADIG_ANA_MISC1_LVDS1_CLK_SEL_SATA_REF;
697 clrsetbits_le32(&anatop_regs->ana_misc1,
698 ANADIG_ANA_MISC1_LVDSCLK1_IBEN |
699 ANADIG_ANA_MISC1_LVDS1_CLK_SEL_MASK,
700 ANADIG_ANA_MISC1_LVDSCLK1_OBEN | lvds1_clk_sel);
702 /* PCIe reference clock sourced from AXI. */
703 clrbits_le32(&ccm_regs->cbcmr, MXC_CCM_CBCMR_PCIE_AXI_CLK_SEL);
705 /* Party time! Ungate the clock to the PCIe. */
711 return enable_enet_pll(BM_ANADIG_PLL_ENET_ENABLE_SATA |
712 BM_ANADIG_PLL_ENET_ENABLE_PCIE);
715 #ifdef CONFIG_SECURE_BOOT
716 void hab_caam_clock_enable(unsigned char enable)
720 /* CG4 ~ CG6, CAAM clocks */
721 reg = __raw_readl(&imx_ccm->CCGR0);
723 reg |= (MXC_CCM_CCGR0_CAAM_WRAPPER_IPG_MASK |
724 MXC_CCM_CCGR0_CAAM_WRAPPER_ACLK_MASK |
725 MXC_CCM_CCGR0_CAAM_SECURE_MEM_MASK);
727 reg &= ~(MXC_CCM_CCGR0_CAAM_WRAPPER_IPG_MASK |
728 MXC_CCM_CCGR0_CAAM_WRAPPER_ACLK_MASK |
729 MXC_CCM_CCGR0_CAAM_SECURE_MEM_MASK);
730 __raw_writel(reg, &imx_ccm->CCGR0);
733 reg = __raw_readl(&imx_ccm->CCGR6);
735 reg |= MXC_CCM_CCGR6_EMI_SLOW_MASK;
737 reg &= ~MXC_CCM_CCGR6_EMI_SLOW_MASK;
738 __raw_writel(reg, &imx_ccm->CCGR6);
742 static void enable_pll3(void)
744 struct anatop_regs __iomem *anatop =
745 (struct anatop_regs __iomem *)ANATOP_BASE_ADDR;
747 /* make sure pll3 is enabled */
748 if ((readl(&anatop->usb1_pll_480_ctrl) &
749 BM_ANADIG_USB1_PLL_480_CTRL_LOCK) == 0) {
750 /* enable pll's power */
751 writel(BM_ANADIG_USB1_PLL_480_CTRL_POWER,
752 &anatop->usb1_pll_480_ctrl_set);
753 writel(0x80, &anatop->ana_misc2_clr);
754 /* wait for pll lock */
755 while ((readl(&anatop->usb1_pll_480_ctrl) &
756 BM_ANADIG_USB1_PLL_480_CTRL_LOCK) == 0)
759 writel(BM_ANADIG_USB1_PLL_480_CTRL_BYPASS,
760 &anatop->usb1_pll_480_ctrl_clr);
761 /* enable pll output */
762 writel(BM_ANADIG_USB1_PLL_480_CTRL_ENABLE,
763 &anatop->usb1_pll_480_ctrl_set);
767 void enable_thermal_clk(void)
772 unsigned int mxc_get_clock(enum mxc_clock clk)
776 return get_mcu_main_clk();
778 return get_periph_clk();
780 return get_ahb_clk();
782 return get_ipg_clk();
785 return get_ipg_per_clk();
787 return get_uart_clk();
789 return get_cspi_clk();
791 return get_axi_clk();
792 case MXC_EMI_SLOW_CLK:
793 return get_emi_slow_clk();
795 return get_mmdc_ch0_clk();
797 return get_usdhc_clk(0);
799 return get_usdhc_clk(1);
801 return get_usdhc_clk(2);
803 return get_usdhc_clk(3);
805 return get_ahb_clk();
807 printf("Unsupported MXC CLK: %d\n", clk);
815 * Dump some core clockes.
817 int do_mx6_showclocks(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
820 freq = decode_pll(PLL_SYS, MXC_HCLK);
821 printf("PLL_SYS %8d MHz\n", freq / 1000000);
822 freq = decode_pll(PLL_BUS, MXC_HCLK);
823 printf("PLL_BUS %8d MHz\n", freq / 1000000);
824 freq = decode_pll(PLL_USBOTG, MXC_HCLK);
825 printf("PLL_OTG %8d MHz\n", freq / 1000000);
826 freq = decode_pll(PLL_ENET, MXC_HCLK);
827 printf("PLL_NET %8d MHz\n", freq / 1000000);
830 printf("IPG %8d kHz\n", mxc_get_clock(MXC_IPG_CLK) / 1000);
831 printf("UART %8d kHz\n", mxc_get_clock(MXC_UART_CLK) / 1000);
832 #ifdef CONFIG_MXC_SPI
833 printf("CSPI %8d kHz\n", mxc_get_clock(MXC_CSPI_CLK) / 1000);
835 printf("AHB %8d kHz\n", mxc_get_clock(MXC_AHB_CLK) / 1000);
836 printf("AXI %8d kHz\n", mxc_get_clock(MXC_AXI_CLK) / 1000);
837 printf("DDR %8d kHz\n", mxc_get_clock(MXC_DDR_CLK) / 1000);
838 printf("USDHC1 %8d kHz\n", mxc_get_clock(MXC_ESDHC_CLK) / 1000);
839 printf("USDHC2 %8d kHz\n", mxc_get_clock(MXC_ESDHC2_CLK) / 1000);
840 printf("USDHC3 %8d kHz\n", mxc_get_clock(MXC_ESDHC3_CLK) / 1000);
841 printf("USDHC4 %8d kHz\n", mxc_get_clock(MXC_ESDHC4_CLK) / 1000);
842 printf("EMI SLOW %8d kHz\n", mxc_get_clock(MXC_EMI_SLOW_CLK) / 1000);
843 printf("IPG PERCLK %8d kHz\n", mxc_get_clock(MXC_IPG_PERCLK) / 1000);
849 void enable_ipu_clock(void)
851 struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
853 reg = readl(&mxc_ccm->CCGR3);
854 reg |= MXC_CCM_CCGR3_IPU1_IPU_MASK;
855 writel(reg, &mxc_ccm->CCGR3);
858 setbits_le32(&mxc_ccm->CCGR6, MXC_CCM_CCGR6_PRG_CLK0_MASK);
859 setbits_le32(&mxc_ccm->CCGR3, MXC_CCM_CCGR3_IPU2_IPU_MASK);
863 /***************************************************/
866 clocks, CONFIG_SYS_MAXARGS, 1, do_mx6_showclocks,