drivers/clk/ingenic/jz4770-cgu.c - linux-mtk - Git at Google

 // SPDX-License-Identifier: GPL-2.0
 /*
  * JZ4770 SoC CGU driver
  * Copyright 2018, Paul Cercueil <paul@crapouillou.net>
  */

 #include <linux/bitops.h>
 #include <linux/clk-provider.h>
 #include <linux/delay.h>
 #include <linux/of.h>
 #include <linux/syscore_ops.h>
 #include <dt-bindings/clock/jz4770-cgu.h>
 #include "cgu.h"

 /*
  * CPM registers offset address definition
  */
 #define CGU_REG_CPCCR		0x00
 #define CGU_REG_LCR		0x04
 #define CGU_REG_CPPCR0		0x10
 #define CGU_REG_CLKGR0		0x20
 #define CGU_REG_OPCR		0x24
 #define CGU_REG_CLKGR1		0x28
 #define CGU_REG_CPPCR1		0x30
 #define CGU_REG_USBPCR1		0x48
 #define CGU_REG_USBCDR		0x50
 #define CGU_REG_I2SCDR		0x60
 #define CGU_REG_LPCDR		0x64
 #define CGU_REG_MSC0CDR		0x68
 #define CGU_REG_UHCCDR		0x6c
 #define CGU_REG_SSICDR		0x74
 #define CGU_REG_CIMCDR		0x7c
 #define CGU_REG_GPSCDR		0x80
 #define CGU_REG_PCMCDR		0x84
 #define CGU_REG_GPUCDR		0x88
 #define CGU_REG_MSC1CDR		0xA4
 #define CGU_REG_MSC2CDR		0xA8
 #define CGU_REG_BCHCDR		0xAC

 /* bits within the LCR register */
 #define LCR_LPM			BIT(0)		/* Low Power Mode */

 /* bits within the OPCR register */
 #define OPCR_SPENDH		BIT(5)		/* UHC PHY suspend */

 /* bits within the USBPCR1 register */
 #define USBPCR1_UHC_POWER	BIT(5)		/* UHC PHY power down */

 static struct ingenic_cgu *cgu;

 static int jz4770_uhc_phy_enable(struct clk_hw *hw)
 {
 	void __iomem *reg_opcr		= cgu->base + CGU_REG_OPCR;
 	void __iomem *reg_usbpcr1	= cgu->base + CGU_REG_USBPCR1;

 	writel(readl(reg_opcr) & ~OPCR_SPENDH, reg_opcr);
 	writel(readl(reg_usbpcr1) | USBPCR1_UHC_POWER, reg_usbpcr1);
 	return 0;
 }

 static void jz4770_uhc_phy_disable(struct clk_hw *hw)
 {
 	void __iomem *reg_opcr		= cgu->base + CGU_REG_OPCR;
 	void __iomem *reg_usbpcr1	= cgu->base + CGU_REG_USBPCR1;

 	writel(readl(reg_usbpcr1) & ~USBPCR1_UHC_POWER, reg_usbpcr1);
 	writel(readl(reg_opcr) | OPCR_SPENDH, reg_opcr);
 }

 static int jz4770_uhc_phy_is_enabled(struct clk_hw *hw)
 {
 	void __iomem *reg_opcr		= cgu->base + CGU_REG_OPCR;
 	void __iomem *reg_usbpcr1	= cgu->base + CGU_REG_USBPCR1;

 	return !(readl(reg_opcr) & OPCR_SPENDH) &&
 		(readl(reg_usbpcr1) & USBPCR1_UHC_POWER);
 }

 static const struct clk_ops jz4770_uhc_phy_ops = {
 	.enable = jz4770_uhc_phy_enable,
 	.disable = jz4770_uhc_phy_disable,
 	.is_enabled = jz4770_uhc_phy_is_enabled,
 };

 static const s8 pll_od_encoding[8] = {
 	0x0, 0x1, -1, 0x2, -1, -1, -1, 0x3,
 };

 static const struct ingenic_cgu_clk_info jz4770_cgu_clocks[] = {

 	/* External clocks */

 	[JZ4770_CLK_EXT] = { "ext", CGU_CLK_EXT },
 	[JZ4770_CLK_OSC32K] = { "osc32k", CGU_CLK_EXT },

 	/* PLLs */

 	[JZ4770_CLK_PLL0] = {
 		"pll0", CGU_CLK_PLL,
 		.parents = { JZ4770_CLK_EXT },
 		.pll = {
 			.reg = CGU_REG_CPPCR0,
 			.m_shift = 24,
 			.m_bits = 7,
 			.m_offset = 1,
 			.n_shift = 18,
 			.n_bits = 5,
 			.n_offset = 1,
 			.od_shift = 16,
 			.od_bits = 2,
 			.od_max = 8,
 			.od_encoding = pll_od_encoding,
 			.bypass_bit = 9,
 			.enable_bit = 8,
 			.stable_bit = 10,
 		},
 	},

 	[JZ4770_CLK_PLL1] = {
 		/* TODO: PLL1 can depend on PLL0 */
 		"pll1", CGU_CLK_PLL,
 		.parents = { JZ4770_CLK_EXT },
 		.pll = {
 			.reg = CGU_REG_CPPCR1,
 			.m_shift = 24,
 			.m_bits = 7,
 			.m_offset = 1,
 			.n_shift = 18,
 			.n_bits = 5,
 			.n_offset = 1,
 			.od_shift = 16,
 			.od_bits = 2,
 			.od_max = 8,
 			.od_encoding = pll_od_encoding,
 			.enable_bit = 7,
 			.stable_bit = 6,
 			.no_bypass_bit = true,
 		},
 	},

 	/* Main clocks */

 	[JZ4770_CLK_CCLK] = {
 		"cclk", CGU_CLK_DIV,
 		.parents = { JZ4770_CLK_PLL0, },
 		.div = { CGU_REG_CPCCR, 0, 1, 4, 22, -1, -1 },
 	},
 	[JZ4770_CLK_H0CLK] = {
 		"h0clk", CGU_CLK_DIV,
 		.parents = { JZ4770_CLK_PLL0, },
 		.div = { CGU_REG_CPCCR, 4, 1, 4, 22, -1, -1 },
 	},
 	[JZ4770_CLK_H1CLK] = {
 		"h1clk", CGU_CLK_DIV | CGU_CLK_GATE,
 		.parents = { JZ4770_CLK_PLL0, },
 		.div = { CGU_REG_CPCCR, 24, 1, 4, 22, -1, -1 },
 		.gate = { CGU_REG_CLKGR1, 7 },
 	},
 	[JZ4770_CLK_H2CLK] = {
 		"h2clk", CGU_CLK_DIV,
 		.parents = { JZ4770_CLK_PLL0, },
 		.div = { CGU_REG_CPCCR, 16, 1, 4, 22, -1, -1 },
 	},
 	[JZ4770_CLK_C1CLK] = {
 		"c1clk", CGU_CLK_DIV | CGU_CLK_GATE,
 		.parents = { JZ4770_CLK_PLL0, },
 		.div = { CGU_REG_CPCCR, 12, 1, 4, 22, -1, -1 },
 		.gate = { CGU_REG_OPCR, 31, true }, // disable CCLK stop on idle
 	},
 	[JZ4770_CLK_PCLK] = {
 		"pclk", CGU_CLK_DIV,
 		.parents = { JZ4770_CLK_PLL0, },
 		.div = { CGU_REG_CPCCR, 8, 1, 4, 22, -1, -1 },
 	},

 	/* Those divided clocks can connect to PLL0 or PLL1 */

 	[JZ4770_CLK_MMC0_MUX] = {
 		"mmc0_mux", CGU_CLK_DIV | CGU_CLK_GATE | CGU_CLK_MUX,
 		.parents = { JZ4770_CLK_PLL0, JZ4770_CLK_PLL1, },
 		.mux = { CGU_REG_MSC0CDR, 30, 1 },
 		.div = { CGU_REG_MSC0CDR, 0, 1, 7, -1, -1, 31 },
 		.gate = { CGU_REG_MSC0CDR, 31 },
 	},
 	[JZ4770_CLK_MMC1_MUX] = {
 		"mmc1_mux", CGU_CLK_DIV | CGU_CLK_GATE | CGU_CLK_MUX,
 		.parents = { JZ4770_CLK_PLL0, JZ4770_CLK_PLL1, },
 		.mux = { CGU_REG_MSC1CDR, 30, 1 },
 		.div = { CGU_REG_MSC1CDR, 0, 1, 7, -1, -1, 31 },
 		.gate = { CGU_REG_MSC1CDR, 31 },
 	},
 	[JZ4770_CLK_MMC2_MUX] = {
 		"mmc2_mux", CGU_CLK_DIV | CGU_CLK_GATE | CGU_CLK_MUX,
 		.parents = { JZ4770_CLK_PLL0, JZ4770_CLK_PLL1, },
 		.mux = { CGU_REG_MSC2CDR, 30, 1 },
 		.div = { CGU_REG_MSC2CDR, 0, 1, 7, -1, -1, 31 },
 		.gate = { CGU_REG_MSC2CDR, 31 },
 	},
 	[JZ4770_CLK_CIM] = {
 		"cim", CGU_CLK_DIV | CGU_CLK_GATE | CGU_CLK_MUX,
 		.parents = { JZ4770_CLK_PLL0, JZ4770_CLK_PLL1, },
 		.mux = { CGU_REG_CIMCDR, 31, 1 },
 		.div = { CGU_REG_CIMCDR, 0, 1, 8, -1, -1, -1 },
 		.gate = { CGU_REG_CLKGR0, 26 },
 	},
 	[JZ4770_CLK_UHC] = {
 		"uhc", CGU_CLK_DIV | CGU_CLK_GATE | CGU_CLK_MUX,
 		.parents = { JZ4770_CLK_PLL0, JZ4770_CLK_PLL1, },
 		.mux = { CGU_REG_UHCCDR, 29, 1 },
 		.div = { CGU_REG_UHCCDR, 0, 1, 4, -1, -1, -1 },
 		.gate = { CGU_REG_CLKGR0, 24 },
 	},
 	[JZ4770_CLK_GPU] = {
 		"gpu", CGU_CLK_DIV | CGU_CLK_GATE | CGU_CLK_MUX,
 		.parents = { JZ4770_CLK_PLL0, JZ4770_CLK_PLL1, -1 },
 		.mux = { CGU_REG_GPUCDR, 31, 1 },
 		.div = { CGU_REG_GPUCDR, 0, 1, 3, -1, -1, -1 },
 		.gate = { CGU_REG_CLKGR1, 9 },
 	},
 	[JZ4770_CLK_BCH] = {
 		"bch", CGU_CLK_DIV | CGU_CLK_GATE | CGU_CLK_MUX,
 		.parents = { JZ4770_CLK_PLL0, JZ4770_CLK_PLL1, },
 		.mux = { CGU_REG_BCHCDR, 31, 1 },
 		.div = { CGU_REG_BCHCDR, 0, 1, 3, -1, -1, -1 },
 		.gate = { CGU_REG_CLKGR0, 1 },
 	},
 	[JZ4770_CLK_LPCLK_MUX] = {
 		"lpclk", CGU_CLK_DIV | CGU_CLK_GATE | CGU_CLK_MUX,
 		.parents = { JZ4770_CLK_PLL0, JZ4770_CLK_PLL1, },
 		.mux = { CGU_REG_LPCDR, 29, 1 },
 		.div = { CGU_REG_LPCDR, 0, 1, 11, -1, -1, -1 },
 		.gate = { CGU_REG_CLKGR0, 28 },
 	},
 	[JZ4770_CLK_GPS] = {
 		"gps", CGU_CLK_DIV | CGU_CLK_GATE | CGU_CLK_MUX,
 		.parents = { JZ4770_CLK_PLL0, JZ4770_CLK_PLL1, },
 		.mux = { CGU_REG_GPSCDR, 31, 1 },
 		.div = { CGU_REG_GPSCDR, 0, 1, 4, -1, -1, -1 },
 		.gate = { CGU_REG_CLKGR0, 22 },
 	},

 	/* Those divided clocks can connect to EXT, PLL0 or PLL1 */

 	[JZ4770_CLK_SSI_MUX] = {
 		"ssi_mux", CGU_CLK_DIV | CGU_CLK_MUX,
 		.parents = { JZ4770_CLK_EXT, -1,
 			JZ4770_CLK_PLL0, JZ4770_CLK_PLL1 },
 		.mux = { CGU_REG_SSICDR, 30, 2 },
 		.div = { CGU_REG_SSICDR, 0, 1, 6, -1, -1, -1 },
 	},
 	[JZ4770_CLK_PCM_MUX] = {
 		"pcm_mux", CGU_CLK_DIV | CGU_CLK_MUX,
 		.parents = { JZ4770_CLK_EXT, -1,
 			JZ4770_CLK_PLL0, JZ4770_CLK_PLL1 },
 		.mux = { CGU_REG_PCMCDR, 30, 2 },
 		.div = { CGU_REG_PCMCDR, 0, 1, 9, -1, -1, -1 },
 	},
 	[JZ4770_CLK_I2S] = {
 		"i2s", CGU_CLK_DIV | CGU_CLK_GATE | CGU_CLK_MUX,
 		.parents = { JZ4770_CLK_EXT, -1,
 			JZ4770_CLK_PLL0, JZ4770_CLK_PLL1 },
 		.mux = { CGU_REG_I2SCDR, 30, 2 },
 		.div = { CGU_REG_I2SCDR, 0, 1, 9, -1, -1, -1 },
 		.gate = { CGU_REG_CLKGR1, 13 },
 	},
 	[JZ4770_CLK_OTG] = {
 		"usb", CGU_CLK_DIV | CGU_CLK_GATE | CGU_CLK_MUX,
 		.parents = { JZ4770_CLK_EXT, -1,
 			JZ4770_CLK_PLL0, JZ4770_CLK_PLL1 },
 		.mux = { CGU_REG_USBCDR, 30, 2 },
 		.div = { CGU_REG_USBCDR, 0, 1, 8, -1, -1, -1 },
 		.gate = { CGU_REG_CLKGR0, 2 },
 	},

 	/* Gate-only clocks */

 	[JZ4770_CLK_SSI0] = {
 		"ssi0", CGU_CLK_GATE,
 		.parents = { JZ4770_CLK_SSI_MUX, },
 		.gate = { CGU_REG_CLKGR0, 4 },
 	},
 	[JZ4770_CLK_SSI1] = {
 		"ssi1", CGU_CLK_GATE,
 		.parents = { JZ4770_CLK_SSI_MUX, },
 		.gate = { CGU_REG_CLKGR0, 19 },
 	},
 	[JZ4770_CLK_SSI2] = {
 		"ssi2", CGU_CLK_GATE,
 		.parents = { JZ4770_CLK_SSI_MUX, },
 		.gate = { CGU_REG_CLKGR0, 20 },
 	},
 	[JZ4770_CLK_PCM0] = {
 		"pcm0", CGU_CLK_GATE,
 		.parents = { JZ4770_CLK_PCM_MUX, },
 		.gate = { CGU_REG_CLKGR1, 8 },
 	},
 	[JZ4770_CLK_PCM1] = {
 		"pcm1", CGU_CLK_GATE,
 		.parents = { JZ4770_CLK_PCM_MUX, },
 		.gate = { CGU_REG_CLKGR1, 10 },
 	},
 	[JZ4770_CLK_DMA] = {
 		"dma", CGU_CLK_GATE,
 		.parents = { JZ4770_CLK_H2CLK, },
 		.gate = { CGU_REG_CLKGR0, 21 },
 	},
 	[JZ4770_CLK_I2C0] = {
 		"i2c0", CGU_CLK_GATE,
 		.parents = { JZ4770_CLK_EXT, },
 		.gate = { CGU_REG_CLKGR0, 5 },
 	},
 	[JZ4770_CLK_I2C1] = {
 		"i2c1", CGU_CLK_GATE,
 		.parents = { JZ4770_CLK_EXT, },
 		.gate = { CGU_REG_CLKGR0, 6 },
 	},
 	[JZ4770_CLK_I2C2] = {
 		"i2c2", CGU_CLK_GATE,
 		.parents = { JZ4770_CLK_EXT, },
 		.gate = { CGU_REG_CLKGR1, 15 },
 	},
 	[JZ4770_CLK_UART0] = {
 		"uart0", CGU_CLK_GATE,
 		.parents = { JZ4770_CLK_EXT, },
 		.gate = { CGU_REG_CLKGR0, 15 },
 	},
 	[JZ4770_CLK_UART1] = {
 		"uart1", CGU_CLK_GATE,
 		.parents = { JZ4770_CLK_EXT, },
 		.gate = { CGU_REG_CLKGR0, 16 },
 	},
 	[JZ4770_CLK_UART2] = {
 		"uart2", CGU_CLK_GATE,
 		.parents = { JZ4770_CLK_EXT, },
 		.gate = { CGU_REG_CLKGR0, 17 },
 	},
 	[JZ4770_CLK_UART3] = {
 		"uart3", CGU_CLK_GATE,
 		.parents = { JZ4770_CLK_EXT, },
 		.gate = { CGU_REG_CLKGR0, 18 },
 	},
 	[JZ4770_CLK_IPU] = {
 		"ipu", CGU_CLK_GATE,
 		.parents = { JZ4770_CLK_H0CLK, },
 		.gate = { CGU_REG_CLKGR0, 29 },
 	},
 	[JZ4770_CLK_ADC] = {
 		"adc", CGU_CLK_GATE,
 		.parents = { JZ4770_CLK_EXT, },
 		.gate = { CGU_REG_CLKGR0, 14 },
 	},
 	[JZ4770_CLK_AIC] = {
 		"aic", CGU_CLK_GATE,
 		.parents = { JZ4770_CLK_EXT, },
 		.gate = { CGU_REG_CLKGR0, 8 },
 	},
 	[JZ4770_CLK_AUX] = {
 		"aux", CGU_CLK_GATE,
 		.parents = { JZ4770_CLK_C1CLK, },
 		.gate = { CGU_REG_CLKGR1, 14 },
 	},
 	[JZ4770_CLK_VPU] = {
 		"vpu", CGU_CLK_GATE,
 		.parents = { JZ4770_CLK_H1CLK, },
 		.gate = { CGU_REG_LCR, 30, false, 150 },
 	},
 	[JZ4770_CLK_MMC0] = {
 		"mmc0", CGU_CLK_GATE,
 		.parents = { JZ4770_CLK_MMC0_MUX, },
 		.gate = { CGU_REG_CLKGR0, 3 },
 	},
 	[JZ4770_CLK_MMC1] = {
 		"mmc1", CGU_CLK_GATE,
 		.parents = { JZ4770_CLK_MMC1_MUX, },
 		.gate = { CGU_REG_CLKGR0, 11 },
 	},
 	[JZ4770_CLK_MMC2] = {
 		"mmc2", CGU_CLK_GATE,
 		.parents = { JZ4770_CLK_MMC2_MUX, },
 		.gate = { CGU_REG_CLKGR0, 12 },
 	},
 	[JZ4770_CLK_OTG_PHY] = {
 		"usb_phy", CGU_CLK_GATE,
 		.parents = { JZ4770_CLK_OTG },
 		.gate = { CGU_REG_OPCR, 7, true, 50 },
 	},

 	/* Custom clocks */

 	[JZ4770_CLK_UHC_PHY] = {
 		"uhc_phy", CGU_CLK_CUSTOM,
 		.parents = { JZ4770_CLK_UHC, -1, -1, -1 },
 		.custom = { &jz4770_uhc_phy_ops },
 	},

 	[JZ4770_CLK_EXT512] = {
 		"ext/512", CGU_CLK_FIXDIV,
 		.parents = { JZ4770_CLK_EXT },
 		.fixdiv = { 512 },
 	},

 	[JZ4770_CLK_RTC] = {
 		"rtc", CGU_CLK_MUX,
 		.parents = { JZ4770_CLK_EXT512, JZ4770_CLK_OSC32K, },
 		.mux = { CGU_REG_OPCR, 2, 1},
 	},
 };

 #if IS_ENABLED(CONFIG_PM_SLEEP)
 static int jz4770_cgu_pm_suspend(void)
 {
 	u32 val;

 	val = readl(cgu->base + CGU_REG_LCR);
 	writel(val | LCR_LPM, cgu->base + CGU_REG_LCR);
 	return 0;
 }

 static void jz4770_cgu_pm_resume(void)
 {
 	u32 val;

 	val = readl(cgu->base + CGU_REG_LCR);
 	writel(val & ~LCR_LPM, cgu->base + CGU_REG_LCR);
 }

 static struct syscore_ops jz4770_cgu_pm_ops = {
 	.suspend = jz4770_cgu_pm_suspend,
 	.resume = jz4770_cgu_pm_resume,
 };
 #endif /* CONFIG_PM_SLEEP */

 static void __init jz4770_cgu_init(struct device_node *np)
 {
 	int retval;

 	cgu = ingenic_cgu_new(jz4770_cgu_clocks,
 			      ARRAY_SIZE(jz4770_cgu_clocks), np);
 	if (!cgu) {
 		pr_err("%s: failed to initialise CGU\n", __func__);
 		return;
 	}

 	retval = ingenic_cgu_register_clocks(cgu);
 	if (retval)
 		pr_err("%s: failed to register CGU Clocks\n", __func__);

 #if IS_ENABLED(CONFIG_PM_SLEEP)
 	register_syscore_ops(&jz4770_cgu_pm_ops);
 #endif
 }

 /* We only probe via devicetree, no need for a platform driver */
 CLK_OF_DECLARE(jz4770_cgu, "ingenic,jz4770-cgu", jz4770_cgu_init);
	// SPDX-License-Identifier: GPL-2.0
	/*
	* JZ4770 SoC CGU driver
	* Copyright 2018, Paul Cercueil <paul@crapouillou.net>
	*/

	#include <linux/bitops.h>
	#include <linux/clk-provider.h>
	#include <linux/delay.h>
	#include <linux/of.h>
	#include <linux/syscore_ops.h>
	#include <dt-bindings/clock/jz4770-cgu.h>
	#include "cgu.h"

	/*
	* CPM registers offset address definition
	*/
	#define CGU_REG_CPCCR 0x00
	#define CGU_REG_LCR 0x04
	#define CGU_REG_CPPCR0 0x10
	#define CGU_REG_CLKGR0 0x20
	#define CGU_REG_OPCR 0x24
	#define CGU_REG_CLKGR1 0x28
	#define CGU_REG_CPPCR1 0x30
	#define CGU_REG_USBPCR1 0x48
	#define CGU_REG_USBCDR 0x50
	#define CGU_REG_I2SCDR 0x60
	#define CGU_REG_LPCDR 0x64
	#define CGU_REG_MSC0CDR 0x68
	#define CGU_REG_UHCCDR 0x6c
	#define CGU_REG_SSICDR 0x74
	#define CGU_REG_CIMCDR 0x7c
	#define CGU_REG_GPSCDR 0x80
	#define CGU_REG_PCMCDR 0x84
	#define CGU_REG_GPUCDR 0x88
	#define CGU_REG_MSC1CDR 0xA4
	#define CGU_REG_MSC2CDR 0xA8
	#define CGU_REG_BCHCDR 0xAC

	/* bits within the LCR register */
	#define LCR_LPM BIT(0) /* Low Power Mode */

	/* bits within the OPCR register */
	#define OPCR_SPENDH BIT(5) /* UHC PHY suspend */

	/* bits within the USBPCR1 register */
	#define USBPCR1_UHC_POWER BIT(5) /* UHC PHY power down */

	static struct ingenic_cgu *cgu;

	static int jz4770_uhc_phy_enable(struct clk_hw *hw)
	{
	void __iomem *reg_opcr = cgu->base + CGU_REG_OPCR;
	void __iomem *reg_usbpcr1 = cgu->base + CGU_REG_USBPCR1;

	writel(readl(reg_opcr) & ~OPCR_SPENDH, reg_opcr);
	writel(readl(reg_usbpcr1) \| USBPCR1_UHC_POWER, reg_usbpcr1);
	return 0;
	}

	static void jz4770_uhc_phy_disable(struct clk_hw *hw)
	{
	void __iomem *reg_opcr = cgu->base + CGU_REG_OPCR;
	void __iomem *reg_usbpcr1 = cgu->base + CGU_REG_USBPCR1;

	writel(readl(reg_usbpcr1) & ~USBPCR1_UHC_POWER, reg_usbpcr1);
	writel(readl(reg_opcr) \| OPCR_SPENDH, reg_opcr);
	}

	static int jz4770_uhc_phy_is_enabled(struct clk_hw *hw)
	{
	void __iomem *reg_opcr = cgu->base + CGU_REG_OPCR;
	void __iomem *reg_usbpcr1 = cgu->base + CGU_REG_USBPCR1;

	return !(readl(reg_opcr) & OPCR_SPENDH) &&
	(readl(reg_usbpcr1) & USBPCR1_UHC_POWER);
	}

	static const struct clk_ops jz4770_uhc_phy_ops = {
	.enable = jz4770_uhc_phy_enable,
	.disable = jz4770_uhc_phy_disable,
	.is_enabled = jz4770_uhc_phy_is_enabled,
	};

	static const s8 pll_od_encoding[8] = {
	0x0, 0x1, -1, 0x2, -1, -1, -1, 0x3,
	};

	static const struct ingenic_cgu_clk_info jz4770_cgu_clocks[] = {

	/* External clocks */

	[JZ4770_CLK_EXT] = { "ext", CGU_CLK_EXT },
	[JZ4770_CLK_OSC32K] = { "osc32k", CGU_CLK_EXT },

	/* PLLs */

	[JZ4770_CLK_PLL0] = {
	"pll0", CGU_CLK_PLL,
	.parents = { JZ4770_CLK_EXT },
	.pll = {
	.reg = CGU_REG_CPPCR0,
	.m_shift = 24,
	.m_bits = 7,
	.m_offset = 1,
	.n_shift = 18,
	.n_bits = 5,
	.n_offset = 1,
	.od_shift = 16,
	.od_bits = 2,
	.od_max = 8,
	.od_encoding = pll_od_encoding,
	.bypass_bit = 9,
	.enable_bit = 8,
	.stable_bit = 10,
	},
	},

	[JZ4770_CLK_PLL1] = {
	/* TODO: PLL1 can depend on PLL0 */
	"pll1", CGU_CLK_PLL,
	.parents = { JZ4770_CLK_EXT },
	.pll = {
	.reg = CGU_REG_CPPCR1,
	.m_shift = 24,
	.m_bits = 7,
	.m_offset = 1,
	.n_shift = 18,
	.n_bits = 5,
	.n_offset = 1,
	.od_shift = 16,
	.od_bits = 2,
	.od_max = 8,
	.od_encoding = pll_od_encoding,
	.enable_bit = 7,
	.stable_bit = 6,
	.no_bypass_bit = true,
	},
	},

	/* Main clocks */

	[JZ4770_CLK_CCLK] = {
	"cclk", CGU_CLK_DIV,
	.parents = { JZ4770_CLK_PLL0, },
	.div = { CGU_REG_CPCCR, 0, 1, 4, 22, -1, -1 },
	},
	[JZ4770_CLK_H0CLK] = {
	"h0clk", CGU_CLK_DIV,
	.parents = { JZ4770_CLK_PLL0, },
	.div = { CGU_REG_CPCCR, 4, 1, 4, 22, -1, -1 },
	},
	[JZ4770_CLK_H1CLK] = {
	"h1clk", CGU_CLK_DIV \| CGU_CLK_GATE,
	.parents = { JZ4770_CLK_PLL0, },
	.div = { CGU_REG_CPCCR, 24, 1, 4, 22, -1, -1 },
	.gate = { CGU_REG_CLKGR1, 7 },
	},
	[JZ4770_CLK_H2CLK] = {
	"h2clk", CGU_CLK_DIV,
	.parents = { JZ4770_CLK_PLL0, },
	.div = { CGU_REG_CPCCR, 16, 1, 4, 22, -1, -1 },
	},
	[JZ4770_CLK_C1CLK] = {
	"c1clk", CGU_CLK_DIV \| CGU_CLK_GATE,
	.parents = { JZ4770_CLK_PLL0, },
	.div = { CGU_REG_CPCCR, 12, 1, 4, 22, -1, -1 },
	.gate = { CGU_REG_OPCR, 31, true }, // disable CCLK stop on idle
	},
	[JZ4770_CLK_PCLK] = {
	"pclk", CGU_CLK_DIV,
	.parents = { JZ4770_CLK_PLL0, },
	.div = { CGU_REG_CPCCR, 8, 1, 4, 22, -1, -1 },
	},

	/* Those divided clocks can connect to PLL0 or PLL1 */

	[JZ4770_CLK_MMC0_MUX] = {
	"mmc0_mux", CGU_CLK_DIV \| CGU_CLK_GATE \| CGU_CLK_MUX,
	.parents = { JZ4770_CLK_PLL0, JZ4770_CLK_PLL1, },
	.mux = { CGU_REG_MSC0CDR, 30, 1 },
	.div = { CGU_REG_MSC0CDR, 0, 1, 7, -1, -1, 31 },
	.gate = { CGU_REG_MSC0CDR, 31 },
	},
	[JZ4770_CLK_MMC1_MUX] = {
	"mmc1_mux", CGU_CLK_DIV \| CGU_CLK_GATE \| CGU_CLK_MUX,
	.parents = { JZ4770_CLK_PLL0, JZ4770_CLK_PLL1, },
	.mux = { CGU_REG_MSC1CDR, 30, 1 },
	.div = { CGU_REG_MSC1CDR, 0, 1, 7, -1, -1, 31 },
	.gate = { CGU_REG_MSC1CDR, 31 },
	},
	[JZ4770_CLK_MMC2_MUX] = {
	"mmc2_mux", CGU_CLK_DIV \| CGU_CLK_GATE \| CGU_CLK_MUX,
	.parents = { JZ4770_CLK_PLL0, JZ4770_CLK_PLL1, },
	.mux = { CGU_REG_MSC2CDR, 30, 1 },
	.div = { CGU_REG_MSC2CDR, 0, 1, 7, -1, -1, 31 },
	.gate = { CGU_REG_MSC2CDR, 31 },
	},
	[JZ4770_CLK_CIM] = {
	"cim", CGU_CLK_DIV \| CGU_CLK_GATE \| CGU_CLK_MUX,
	.parents = { JZ4770_CLK_PLL0, JZ4770_CLK_PLL1, },
	.mux = { CGU_REG_CIMCDR, 31, 1 },
	.div = { CGU_REG_CIMCDR, 0, 1, 8, -1, -1, -1 },
	.gate = { CGU_REG_CLKGR0, 26 },
	},
	[JZ4770_CLK_UHC] = {
	"uhc", CGU_CLK_DIV \| CGU_CLK_GATE \| CGU_CLK_MUX,
	.parents = { JZ4770_CLK_PLL0, JZ4770_CLK_PLL1, },
	.mux = { CGU_REG_UHCCDR, 29, 1 },
	.div = { CGU_REG_UHCCDR, 0, 1, 4, -1, -1, -1 },
	.gate = { CGU_REG_CLKGR0, 24 },
	},
	[JZ4770_CLK_GPU] = {
	"gpu", CGU_CLK_DIV \| CGU_CLK_GATE \| CGU_CLK_MUX,
	.parents = { JZ4770_CLK_PLL0, JZ4770_CLK_PLL1, -1 },
	.mux = { CGU_REG_GPUCDR, 31, 1 },
	.div = { CGU_REG_GPUCDR, 0, 1, 3, -1, -1, -1 },
	.gate = { CGU_REG_CLKGR1, 9 },
	},
	[JZ4770_CLK_BCH] = {
	"bch", CGU_CLK_DIV \| CGU_CLK_GATE \| CGU_CLK_MUX,
	.parents = { JZ4770_CLK_PLL0, JZ4770_CLK_PLL1, },
	.mux = { CGU_REG_BCHCDR, 31, 1 },
	.div = { CGU_REG_BCHCDR, 0, 1, 3, -1, -1, -1 },
	.gate = { CGU_REG_CLKGR0, 1 },
	},
	[JZ4770_CLK_LPCLK_MUX] = {
	"lpclk", CGU_CLK_DIV \| CGU_CLK_GATE \| CGU_CLK_MUX,
	.parents = { JZ4770_CLK_PLL0, JZ4770_CLK_PLL1, },
	.mux = { CGU_REG_LPCDR, 29, 1 },
	.div = { CGU_REG_LPCDR, 0, 1, 11, -1, -1, -1 },
	.gate = { CGU_REG_CLKGR0, 28 },
	},
	[JZ4770_CLK_GPS] = {
	"gps", CGU_CLK_DIV \| CGU_CLK_GATE \| CGU_CLK_MUX,
	.parents = { JZ4770_CLK_PLL0, JZ4770_CLK_PLL1, },
	.mux = { CGU_REG_GPSCDR, 31, 1 },
	.div = { CGU_REG_GPSCDR, 0, 1, 4, -1, -1, -1 },
	.gate = { CGU_REG_CLKGR0, 22 },
	},

	/* Those divided clocks can connect to EXT, PLL0 or PLL1 */

	[JZ4770_CLK_SSI_MUX] = {
	"ssi_mux", CGU_CLK_DIV \| CGU_CLK_MUX,
	.parents = { JZ4770_CLK_EXT, -1,
	JZ4770_CLK_PLL0, JZ4770_CLK_PLL1 },
	.mux = { CGU_REG_SSICDR, 30, 2 },
	.div = { CGU_REG_SSICDR, 0, 1, 6, -1, -1, -1 },
	},
	[JZ4770_CLK_PCM_MUX] = {
	"pcm_mux", CGU_CLK_DIV \| CGU_CLK_MUX,
	.parents = { JZ4770_CLK_EXT, -1,
	JZ4770_CLK_PLL0, JZ4770_CLK_PLL1 },
	.mux = { CGU_REG_PCMCDR, 30, 2 },
	.div = { CGU_REG_PCMCDR, 0, 1, 9, -1, -1, -1 },
	},
	[JZ4770_CLK_I2S] = {
	"i2s", CGU_CLK_DIV \| CGU_CLK_GATE \| CGU_CLK_MUX,
	.parents = { JZ4770_CLK_EXT, -1,
	JZ4770_CLK_PLL0, JZ4770_CLK_PLL1 },
	.mux = { CGU_REG_I2SCDR, 30, 2 },
	.div = { CGU_REG_I2SCDR, 0, 1, 9, -1, -1, -1 },
	.gate = { CGU_REG_CLKGR1, 13 },
	},
	[JZ4770_CLK_OTG] = {
	"usb", CGU_CLK_DIV \| CGU_CLK_GATE \| CGU_CLK_MUX,
	.parents = { JZ4770_CLK_EXT, -1,
	JZ4770_CLK_PLL0, JZ4770_CLK_PLL1 },
	.mux = { CGU_REG_USBCDR, 30, 2 },
	.div = { CGU_REG_USBCDR, 0, 1, 8, -1, -1, -1 },
	.gate = { CGU_REG_CLKGR0, 2 },
	},

	/* Gate-only clocks */

	[JZ4770_CLK_SSI0] = {
	"ssi0", CGU_CLK_GATE,
	.parents = { JZ4770_CLK_SSI_MUX, },
	.gate = { CGU_REG_CLKGR0, 4 },
	},
	[JZ4770_CLK_SSI1] = {
	"ssi1", CGU_CLK_GATE,
	.parents = { JZ4770_CLK_SSI_MUX, },
	.gate = { CGU_REG_CLKGR0, 19 },
	},
	[JZ4770_CLK_SSI2] = {
	"ssi2", CGU_CLK_GATE,
	.parents = { JZ4770_CLK_SSI_MUX, },
	.gate = { CGU_REG_CLKGR0, 20 },
	},
	[JZ4770_CLK_PCM0] = {
	"pcm0", CGU_CLK_GATE,
	.parents = { JZ4770_CLK_PCM_MUX, },
	.gate = { CGU_REG_CLKGR1, 8 },
	},
	[JZ4770_CLK_PCM1] = {
	"pcm1", CGU_CLK_GATE,
	.parents = { JZ4770_CLK_PCM_MUX, },
	.gate = { CGU_REG_CLKGR1, 10 },
	},
	[JZ4770_CLK_DMA] = {
	"dma", CGU_CLK_GATE,
	.parents = { JZ4770_CLK_H2CLK, },
	.gate = { CGU_REG_CLKGR0, 21 },
	},
	[JZ4770_CLK_I2C0] = {
	"i2c0", CGU_CLK_GATE,
	.parents = { JZ4770_CLK_EXT, },
	.gate = { CGU_REG_CLKGR0, 5 },
	},
	[JZ4770_CLK_I2C1] = {
	"i2c1", CGU_CLK_GATE,
	.parents = { JZ4770_CLK_EXT, },
	.gate = { CGU_REG_CLKGR0, 6 },
	},
	[JZ4770_CLK_I2C2] = {
	"i2c2", CGU_CLK_GATE,
	.parents = { JZ4770_CLK_EXT, },
	.gate = { CGU_REG_CLKGR1, 15 },
	},
	[JZ4770_CLK_UART0] = {
	"uart0", CGU_CLK_GATE,
	.parents = { JZ4770_CLK_EXT, },
	.gate = { CGU_REG_CLKGR0, 15 },
	},
	[JZ4770_CLK_UART1] = {
	"uart1", CGU_CLK_GATE,
	.parents = { JZ4770_CLK_EXT, },
	.gate = { CGU_REG_CLKGR0, 16 },
	},
	[JZ4770_CLK_UART2] = {
	"uart2", CGU_CLK_GATE,
	.parents = { JZ4770_CLK_EXT, },
	.gate = { CGU_REG_CLKGR0, 17 },
	},
	[JZ4770_CLK_UART3] = {
	"uart3", CGU_CLK_GATE,
	.parents = { JZ4770_CLK_EXT, },
	.gate = { CGU_REG_CLKGR0, 18 },
	},
	[JZ4770_CLK_IPU] = {
	"ipu", CGU_CLK_GATE,
	.parents = { JZ4770_CLK_H0CLK, },
	.gate = { CGU_REG_CLKGR0, 29 },
	},
	[JZ4770_CLK_ADC] = {
	"adc", CGU_CLK_GATE,
	.parents = { JZ4770_CLK_EXT, },
	.gate = { CGU_REG_CLKGR0, 14 },
	},
	[JZ4770_CLK_AIC] = {
	"aic", CGU_CLK_GATE,
	.parents = { JZ4770_CLK_EXT, },
	.gate = { CGU_REG_CLKGR0, 8 },
	},
	[JZ4770_CLK_AUX] = {
	"aux", CGU_CLK_GATE,
	.parents = { JZ4770_CLK_C1CLK, },
	.gate = { CGU_REG_CLKGR1, 14 },
	},
	[JZ4770_CLK_VPU] = {
	"vpu", CGU_CLK_GATE,
	.parents = { JZ4770_CLK_H1CLK, },
	.gate = { CGU_REG_LCR, 30, false, 150 },
	},
	[JZ4770_CLK_MMC0] = {
	"mmc0", CGU_CLK_GATE,
	.parents = { JZ4770_CLK_MMC0_MUX, },
	.gate = { CGU_REG_CLKGR0, 3 },
	},
	[JZ4770_CLK_MMC1] = {
	"mmc1", CGU_CLK_GATE,
	.parents = { JZ4770_CLK_MMC1_MUX, },
	.gate = { CGU_REG_CLKGR0, 11 },
	},
	[JZ4770_CLK_MMC2] = {
	"mmc2", CGU_CLK_GATE,
	.parents = { JZ4770_CLK_MMC2_MUX, },
	.gate = { CGU_REG_CLKGR0, 12 },
	},
	[JZ4770_CLK_OTG_PHY] = {
	"usb_phy", CGU_CLK_GATE,
	.parents = { JZ4770_CLK_OTG },
	.gate = { CGU_REG_OPCR, 7, true, 50 },
	},

	/* Custom clocks */

	[JZ4770_CLK_UHC_PHY] = {
	"uhc_phy", CGU_CLK_CUSTOM,
	.parents = { JZ4770_CLK_UHC, -1, -1, -1 },
	.custom = { &jz4770_uhc_phy_ops },
	},

	[JZ4770_CLK_EXT512] = {
	"ext/512", CGU_CLK_FIXDIV,
	.parents = { JZ4770_CLK_EXT },
	.fixdiv = { 512 },
	},

	[JZ4770_CLK_RTC] = {
	"rtc", CGU_CLK_MUX,
	.parents = { JZ4770_CLK_EXT512, JZ4770_CLK_OSC32K, },
	.mux = { CGU_REG_OPCR, 2, 1},
	},
	};

	#if IS_ENABLED(CONFIG_PM_SLEEP)
	static int jz4770_cgu_pm_suspend(void)
	{
	u32 val;

	val = readl(cgu->base + CGU_REG_LCR);
	writel(val \| LCR_LPM, cgu->base + CGU_REG_LCR);
	return 0;
	}

	static void jz4770_cgu_pm_resume(void)
	{
	u32 val;

	val = readl(cgu->base + CGU_REG_LCR);
	writel(val & ~LCR_LPM, cgu->base + CGU_REG_LCR);
	}

	static struct syscore_ops jz4770_cgu_pm_ops = {
	.suspend = jz4770_cgu_pm_suspend,
	.resume = jz4770_cgu_pm_resume,
	};
	#endif /* CONFIG_PM_SLEEP */

	static void __init jz4770_cgu_init(struct device_node *np)
	{
	int retval;

	cgu = ingenic_cgu_new(jz4770_cgu_clocks,
	ARRAY_SIZE(jz4770_cgu_clocks), np);
	if (!cgu) {
	pr_err("%s: failed to initialise CGU\n", __func__);
	return;
	}

	retval = ingenic_cgu_register_clocks(cgu);
	if (retval)
	pr_err("%s: failed to register CGU Clocks\n", __func__);

	#if IS_ENABLED(CONFIG_PM_SLEEP)
	register_syscore_ops(&jz4770_cgu_pm_ops);
	#endif
	}

	/* We only probe via devicetree, no need for a platform driver */
	CLK_OF_DECLARE(jz4770_cgu, "ingenic,jz4770-cgu", jz4770_cgu_init);