2  * (C) Copyright 2010-2015
5  * SPDX-License-Identifier:     GPL-2.0+
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 Tegra114 has muxes for the
23  * source. This gives us a clock 'type' and exploits what commonality exists
48 	CLOCK_TYPE_NONE = -1,   /* invalid clock type */
52 	CLOCK_MAX_MUX   = 8     /* number of source options for each clock */
56  * Clock source mux for each clock type. This just converts our enum into
60  *  The extra column in each clock source array is used to store the mask
61  *  bits in its register for the source.
63 #define CLK(x) CLOCK_ID_ ## x  macro
65 	{ CLK(AUDIO),	CLK(XCPU),	CLK(PERIPH),	CLK(OSC),
66 		CLK(NONE),	CLK(NONE),	CLK(NONE),	CLK(NONE),
68 	{ CLK(MEMORY),	CLK(CGENERAL),	CLK(PERIPH),	CLK(AUDIO),
69 		CLK(NONE),	CLK(NONE),	CLK(NONE),	CLK(NONE),
71 	{ CLK(MEMORY),	CLK(CGENERAL),	CLK(PERIPH),	CLK(OSC),
72 		CLK(NONE),	CLK(NONE),	CLK(NONE),	CLK(NONE),
74 	{ CLK(PERIPH),	CLK(CGENERAL),	CLK(MEMORY),	CLK(NONE),
75 		CLK(NONE),	CLK(NONE),	CLK(NONE),	CLK(NONE),
77 	{ CLK(PERIPH),	CLK(CGENERAL),	CLK(MEMORY),	CLK(OSC),
78 		CLK(NONE),	CLK(NONE),	CLK(NONE),	CLK(NONE),
80 	{ CLK(PERIPH),	CLK(CGENERAL),	CLK(MEMORY),	CLK(OSC),
81 		CLK(NONE),	CLK(NONE),	CLK(NONE),	CLK(NONE),
83 	{ CLK(PERIPH),	CLK(DISPLAY),	CLK(CGENERAL),	CLK(OSC),
84 		CLK(NONE),	CLK(NONE),	CLK(NONE),	CLK(NONE),
86 	{ CLK(AUDIO),	CLK(CGENERAL),	CLK(PERIPH),	CLK(OSC),
87 		CLK(NONE),	CLK(NONE),	CLK(NONE),	CLK(NONE),
89 	{ CLK(AUDIO),	CLK(SFROM32KHZ),	CLK(PERIPH),	CLK(OSC),
90 		CLK(EPCI),	CLK(NONE),	CLK(NONE),	CLK(NONE),
92 	{ CLK(PERIPH),	CLK(MEMORY),	CLK(DISPLAY),	CLK(AUDIO),
93 		CLK(CGENERAL),	CLK(DISPLAY2),	CLK(OSC),	CLK(NONE),
95 	{ CLK(PERIPH),	CLK(CGENERAL),	CLK(SFROM32KHZ),	CLK(OSC),
96 		CLK(NONE),	CLK(NONE),	CLK(NONE),	CLK(NONE),
101  * Clock type for each peripheral clock source. We put the name in each
142 	TYPE(PERIPHC_MIPI,	CLOCK_TYPE_PCMT),	/* MIPI base-band HSI */
221  *	SPDIF - which is both 0x08 and 0x0c
224 #define NONE(name) (-1)
469 	reg = readl(&clkrst->crc_osc_ctrl);  in clock_get_osc_freq()
478 /* Returns a pointer to the clock source register for a peripheral */
487 		return &clkrst->crc_clk_src[PERIPH_ID_CSI+1];  in get_periph_source_reg()
491 	assert(internal_id != -1);  in get_periph_source_reg()
493 		internal_id -= PERIPHC_VW_FIRST;  in get_periph_source_reg()
494 		return &clkrst->crc_clk_src_vw[internal_id];  in get_periph_source_reg()
496 		return &clkrst->crc_clk_src[internal_id];  in get_periph_source_reg()
505 		return -1;  in get_periph_clock_info()
509 		return -1;  in get_periph_clock_info()
513 		return -1;  in get_periph_clock_info()
525 enum clock_id get_periph_clock_id(enum periph_id periph_id, int source)  in get_periph_clock_id()  argument
541 	return clock_source[type][source];  in get_periph_clock_id()
545  * Given a peripheral ID and the required source clock, this returns which
546  * value should be programmed into the source mux for that peripheral.
548  * There is special code here to handle the one source type with 5 sources.
551  * @param source	PLL id of required parent clock
554  * @return mux value (0-4, or -1 if not found)
572 	return -1;  in get_periph_clock_source()
579 	u32 *clk;  in clock_set_enable()  local
585 		clk = &clkrst->crc_clk_out_enb[PERIPH_REG(periph_id)];  in clock_set_enable()
587 		clk = &clkrst->crc_clk_out_enb_vw[PERIPH_REG(periph_id)];  in clock_set_enable()
588 	reg = readl(clk);  in clock_set_enable()
593 	writel(reg, clk);  in clock_set_enable()
606 		reset = &clkrst->crc_rst_dev[PERIPH_REG(periph_id)];  in reset_set_enable()
608 		reset = &clkrst->crc_rst_dev_vw[PERIPH_REG(periph_id)];  in reset_set_enable()
666 	clrbits_le32(&clkrst->crc_pll[CLOCK_ID_CGENERAL].pll_misc, PLLC_IDDQ);  in clock_early_init()
699 	writel(0x00561600, &clkrst->crc_pll[CLOCK_ID_CGENERAL].pll_out[1]);  in clock_early_init()
703 	setbits_le32(&clkrst->crc_pll[CLOCK_ID_CGENERAL].pll_misc, (1 << pllinfo->lock_ena));  in clock_early_init()
708 	data = (12 << pllinfo->kcp_shift) | (1 << pllinfo->kvco_shift);  in clock_early_init()
709 	data |= (1 << PLLD_CLKENABLE) | (1 << pllinfo->lock_ena);  in clock_early_init()
710 	writel(data, &clkrst->crc_pll[CLOCK_ID_DISPLAY].pll_misc);  in clock_early_init()
727 	writel(freq, &sysctr->cntfid0);  in arch_timer_init()
729 	val = readl(&sysctr->cntcr);  in arch_timer_init()
731 	writel(val, &sysctr->cntcr);  in arch_timer_init()
755 	{ -1, },