[PATCH v4 2/4] clk: imx8mq: Add a clock driver for the imx8mq

[Angus Ainslie <angus@akkea.ca>]

This is a DM clock driver based off the imx8mm u-boot driver and the linux
kernel driver.

All of the PLLs and clocks are initialized so the subsystems below are
functional and tested.

1) USB host and peripheral
2) ECSPI
3) UART
4) I2C all busses
5) USDHC for eMMC support
6) USB storage
7) GPIO
8) DRAM

Signed-off-by: Angus Ainslie <angus@akkea.ca>
---
 drivers/clk/imx/Kconfig      |  16 +
 drivers/clk/imx/Makefile     |   2 +
 drivers/clk/imx/clk-imx8mq.c | 575 +++++++++++++++++++++++++++++++++++
 3 files changed, 593 insertions(+)
 create mode 100644 drivers/clk/imx/clk-imx8mq.c

diff --git a/drivers/clk/imx/Kconfig b/drivers/clk/imx/Kconfig
index cdd348020b0..06d8c1a5dd3 100644
--- a/drivers/clk/imx/Kconfig
+++ b/drivers/clk/imx/Kconfig
@@ -71,6 +71,22 @@ config CLK_IMX8MP
 	help
 	  This enables support clock driver for i.MX8MP platforms.
 
+config SPL_CLK_IMX8MQ
+	bool "SPL clock support for i.MX8MQ"
+	depends on ARCH_IMX8M && SPL
+	select SPL_CLK
+	select SPL_CLK_CCF
+	help
+	  This enables SPL DM/DTS support for clock driver in i.MX8MQ
+
+config CLK_IMX8MQ
+	bool "Clock support for i.MX8MQ"
+	depends on ARCH_IMX8M
+	select CLK
+	select CLK_CCF
+	help
+	  This enables support clock driver for i.MX8MQ platforms.
+
 config SPL_CLK_IMXRT1020
 	bool "SPL clock support for i.MXRT1020"
 	depends on ARCH_IMXRT && SPL
diff --git a/drivers/clk/imx/Makefile b/drivers/clk/imx/Makefile
index 01bbbdf3aea..c5766901f2b 100644
--- a/drivers/clk/imx/Makefile
+++ b/drivers/clk/imx/Makefile
@@ -16,6 +16,8 @@ obj-$(CONFIG_$(SPL_TPL_)CLK_IMX8MN) += clk-imx8mn.o clk-pll14xx.o \
 				clk-composite-8m.o
 obj-$(CONFIG_$(SPL_TPL_)CLK_IMX8MP) += clk-imx8mp.o clk-pll14xx.o \
 				clk-composite-8m.o
+obj-$(CONFIG_$(SPL_TPL_)CLK_IMX8MQ) += clk-imx8mq.o clk-pll14xx.o \
+				clk-composite-8m.o
 
 obj-$(CONFIG_$(SPL_TPL_)CLK_IMXRT1020) += clk-imxrt1020.o
 obj-$(CONFIG_$(SPL_TPL_)CLK_IMXRT1050) += clk-imxrt1050.o
diff --git a/drivers/clk/imx/clk-imx8mq.c b/drivers/clk/imx/clk-imx8mq.c
new file mode 100644
index 00000000000..0aea417a29b
--- /dev/null
+++ b/drivers/clk/imx/clk-imx8mq.c
@@ -0,0 +1,575 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2019 NXP
+ * Copyright 2022 Purism
+ * Peng Fan <peng.fan@nxp.com>
+ */
+
+#include <common.h>
+#include <clk.h>
+#include <clk-uclass.h>
+#include <dm.h>
+#include <log.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/imx-regs.h>
+#include <dt-bindings/clock/imx8mq-clock.h>
+
+#include "clk.h"
+
+#define PLL_1416X_RATE(_rate, _m, _p, _s)		\
+	{						\
+		.rate	=	(_rate),		\
+		.mdiv	=	(_m),			\
+		.pdiv	=	(_p),			\
+		.sdiv	=	(_s),			\
+	}
+
+#define PLL_1443X_RATE(_rate, _m, _p, _s, _k)		\
+	{						\
+		.rate	=	(_rate),		\
+		.mdiv	=	(_m),			\
+		.pdiv	=	(_p),			\
+		.sdiv	=	(_s),			\
+		.kdiv	=	(_k),			\
+	}
+
+static const struct imx_pll14xx_rate_table imx8mq_pll1416x_tbl[] = {
+	PLL_1416X_RATE(1800000000U, 225, 3, 0),
+	PLL_1416X_RATE(1600000000U, 200, 3, 0),
+	PLL_1416X_RATE(1200000000U, 300, 3, 1),
+	PLL_1416X_RATE(1000000000U, 250, 3, 1),
+	PLL_1416X_RATE(800000000U,  200, 3, 1),
+	PLL_1416X_RATE(750000000U,  250, 2, 2),
+	PLL_1416X_RATE(700000000U,  350, 3, 2),
+	PLL_1416X_RATE(600000000U,  300, 3, 2),
+};
+
+const struct imx_pll14xx_rate_table imx8mq_pll1443x_tbl[] = {
+	PLL_1443X_RATE(650000000U, 325, 3, 2, 0),
+	PLL_1443X_RATE(594000000U, 198, 2, 2, 0),
+	PLL_1443X_RATE(393216000U, 262, 2, 3, 9437),
+	PLL_1443X_RATE(361267200U, 361, 3, 3, 17511),
+};
+
+static struct imx_pll14xx_clk imx8mq_1416x_pll __initdata = {
+		.type = PLL_1416X,
+		.rate_table = imx8mq_pll1416x_tbl,
+		.rate_count = ARRAY_SIZE(imx8mq_pll1416x_tbl),
+};
+
+static struct imx_pll14xx_clk imx8mq_1443x_pll __initdata = {
+		.type = PLL_1443X,
+		.rate_table = imx8mq_pll1443x_tbl,
+		.rate_count = ARRAY_SIZE(imx8mq_pll1443x_tbl),
+};
+
+static const char *pll_ref_sels[] = { "clock-osc-25m", "clock-osc-27m", "clock-phy-27m", "dummy", };
+static const char *arm_pll_bypass_sels[] = {"arm_pll", "arm_pll_ref_sel", };
+static const char *gpu_pll_bypass_sels[] = {"gpu_pll", "gpu_pll_ref_sel", };
+static const char *vpu_pll_bypass_sels[] = {"vpu_pll", "vpu_pll_ref_sel", };
+static const char *audio_pll1_bypass_sels[] = {"audio_pll1", "audio_pll1_ref_sel", };
+static const char *audio_pll2_bypass_sels[] = {"audio_pll2", "audio_pll2_ref_sel", };
+static const char *video_pll1_bypass_sels[] = {"video_pll1", "video_pll1_ref_sel", };
+
+static const char *imx8mq_a53_core_sels[] = {"arm_a53_div", "arm_pll_out", };
+static const char *imx8mq_a53_sels[] = {"clock-osc-25m", "arm_pll_out", "sys_pll2_500m",
+					"sys_pll2_1000m", "sys_pll1_800m", "sys_pll1_400m",
+					"audio_pll1_out", "sys_pll3_out", };
+
+static const char *imx8mq_ahb_sels[] = {"clock-osc-25m", "sys_pll1_133m", "sys_pll1_800m",
+					"sys_pll1_400m", "sys_pll2_125m", "sys_pll3_out",
+					"audio_pll1_out", "video_pll1_out", };
+
+static const char *imx8mq_enet_axi_sels[] = {"clock-osc-25m", "sys_pll1_266m", "sys_pll1_800m",
+					     "sys_pll2_250m", "sys_pll2_200m", "audio_pll1_out",
+					     "video_pll1_out", "sys_pll3_out", };
+
+static const char *imx8mq_enet_ref_sels[] = {"clock-osc-25m", "sys_pll2_125m", "sys_pll2_50m",
+					     "sys_pll2_100m", "sys_pll1_160m", "audio_pll1_out",
+					     "video_pll1_out", "clk_ext4", };
+
+static const char *imx8mq_enet_timer_sels[] = {"clock-osc-25m", "sys_pll2_100m", "audio_pll1_out",
+					       "clk_ext1", "clk_ext2", "clk_ext3", "clk_ext4",
+					       "video_pll1_out", };
+
+static const char *imx8mq_enet_phy_sels[] = {"clock-osc-25m", "sys_pll2_50m", "sys_pll2_125m",
+					     "sys_pll2_200m", "sys_pll2_500m", "video_pll1_out",
+					     "audio_pll2_out", };
+
+static const char *imx8mq_nand_usdhc_sels[] = {"clock-osc-25m", "sys_pll1_266m", "sys_pll1_800m",
+					       "sys_pll2_200m", "sys_pll1_133m", "sys_pll3_out",
+					       "sys_pll2_250m", "audio_pll1_out", };
+
+static const char *imx8mq_usb_bus_sels[] = {"clock-osc-25m", "sys_pll2_500m", "sys_pll1_800m",
+					    "sys_pll2_100m", "sys_pll2_200m", "clk_ext2",
+					    "clk_ext4", "audio_pll2_out", };
+
+static const char *imx8mq_usdhc1_sels[] = {"clock-osc-25m", "sys_pll1_400m", "sys_pll1_800m",
+					   "sys_pll2_500m", "sys_pll3_out", "sys_pll1_266m",
+					   "audio_pll2_out", "sys_pll1_100m", };
+
+static const char *imx8mq_usdhc2_sels[] = {"clock-osc-25m", "sys_pll1_400m", "sys_pll1_800m",
+					   "sys_pll2_500m", "sys_pll3_out", "sys_pll1_266m",
+					   "audio_pll2_out", "sys_pll1_100m", };
+
+static const char *imx8mq_i2c1_sels[] = {"clock-osc-25m", "sys_pll1_160m", "sys_pll2_50m",
+					 "sys_pll3_out", "audio_pll1_out", "video_pll1_out",
+					 "audio_pll2_out", "sys_pll1_133m", };
+
+static const char *imx8mq_i2c2_sels[] = {"clock-osc-25m", "sys_pll1_160m", "sys_pll2_50m",
+					 "sys_pll3_out", "audio_pll1_out", "video_pll1_out",
+					 "audio_pll2_out", "sys_pll1_133m", };
+
+static const char *imx8mq_i2c3_sels[] = {"clock-osc-25m", "sys_pll1_160m", "sys_pll2_50m",
+					 "sys_pll3_out", "audio_pll1_out", "video_pll1_out",
+					 "audio_pll2_out", "sys_pll1_133m", };
+
+static const char *imx8mq_i2c4_sels[] = {"clock-osc-25m", "sys_pll1_160m", "sys_pll2_50m",
+					 "sys_pll3_out", "audio_pll1_out", "video_pll1_out",
+					 "audio_pll2_out", "sys_pll1_133m", };
+
+static const char *imx8mq_wdog_sels[] = {"clock-osc-25m", "sys_pll1_133m", "sys_pll1_160m",
+					 "vpu_pll_out", "sys_pll2_125m", "sys_pll3_out",
+					 "sys_pll1_80m", "sys_pll2_166m", };
+
+static const char *imx8mq_qspi_sels[] = {"clock-osc-25m", "sys_pll1_400m", "sys_pll2_333m",
+					 "sys_pll2_500m", "audio_pll2_out", "sys_pll1_266m",
+					 "sys_pll3_out", "sys_pll1_100m", };
+
+static const char *imx8mq_usb_core_sels[] = {"clock-osc-25m", "sys_pll1_100m", "sys_pll1_40m",
+					     "sys_pll2_100m", "sys_pll2_200m", "clk_ext2",
+					     "clk_ext3", "audio_pll2_out", };
+
+static const char *imx8mq_usb_phy_sels[] = {"clock-osc-25m", "sys_pll1_100m", "sys_pll1_40m",
+					    "sys_pll2_100m", "sys_pll2_200m", "clk_ext2",
+					    "clk_ext3", "audio_pll2_out", };
+
+static const char *imx8mq_ecspi1_sels[] = {"clock-osc-25m", "sys_pll2_200m", "sys_pll1_40m",
+					   "sys_pll1_160m", "sys_pll1_800m", "sys_pll3_out",
+					   "sys_pll2_250m", "audio_pll2_out", };
+
+static const char *imx8mq_ecspi2_sels[] = {"clock-osc-25m", "sys_pll2_200m", "sys_pll1_40m",
+					   "sys_pll1_160m", "sys_pll1_800m", "sys_pll3_out",
+					   "sys_pll2_250m", "audio_pll2_out", };
+
+static const char *imx8mq_ecspi3_sels[] = {"clock-osc-25m", "sys_pll2_200m", "sys_pll1_40m",
+					   "sys_pll1_160m", "sys_pll1_800m", "sys_pll3_out",
+					   "sys_pll2_250m", "audio_pll2_out", };
+
+static const char *pllout_monitor_sels[] = {"clock-osc-25m", "clock-osc-27m", "clock-phy-27m",
+					    "dummy", "clock-ckil", "audio_pll1_out_monitor",
+					    "audio_pll2_out_monitor", "gpu_pll_out_monitor",
+					    "vpu_pll_out_monitor", "video_pll1_out_monitor",
+					    "arm_pll_out_monitor", "sys_pll1_out_monitor",
+					    "sys_pll2_out_monitor", "sys_pll3_out_monitor",
+					    "dummy", "dram_pll_out_monitor", };
+
+static ulong imx8mq_clk_get_rate(struct clk *clk)
+{
+	struct clk *c;
+	int ret;
+
+	debug("%s(#%lu)\n", __func__, clk->id);
+
+	ret = clk_get_by_id(clk->id, &c);
+	if (ret)
+		return ret;
+
+	return clk_get_rate(c);
+}
+
+static ulong imx8mq_clk_set_rate(struct clk *clk, unsigned long rate)
+{
+	struct clk *c;
+	int ret;
+
+	debug("%s(#%lu), rate: %lu\n", __func__, clk->id, rate);
+
+	ret = clk_get_by_id(clk->id, &c);
+	if (ret)
+		return ret;
+
+	return clk_set_rate(c, rate);
+}
+
+static int __imx8mq_clk_enable(struct clk *clk, bool enable)
+{
+	struct clk *c;
+	int ret;
+
+	debug("%s(#%lu) en: %d\n", __func__, clk->id, enable);
+
+	ret = clk_get_by_id(clk->id, &c);
+	if (ret) {
+		debug("%s: clk_get_by_id failed\n", __func__);
+		return ret;
+	}
+
+	if (enable)
+		ret = clk_enable(c);
+	else
+		ret = clk_disable(c);
+
+	return ret;
+}
+
+static int imx8mq_clk_disable(struct clk *clk)
+{
+	return __imx8mq_clk_enable(clk, 0);
+}
+
+static int imx8mq_clk_enable(struct clk *clk)
+{
+	return __imx8mq_clk_enable(clk, 1);
+}
+
+static int imx8mq_clk_set_parent(struct clk *clk, struct clk *parent)
+{
+	struct clk *c, *cp;
+	int ret;
+
+	debug("%s(#%lu), parent: %lu\n", __func__, clk->id, parent->id);
+
+	ret = clk_get_by_id(clk->id, &c);
+	if (ret)
+		return ret;
+
+	ret = clk_get_by_id(parent->id, &cp);
+	if (ret)
+		return ret;
+
+	ret = clk_set_parent(c, cp);
+	c->dev->parent = cp->dev;
+
+	return ret;
+}
+
+static struct clk_ops imx8mq_clk_ops = {
+	.set_rate = imx8mq_clk_set_rate,
+	.get_rate = imx8mq_clk_get_rate,
+	.enable = imx8mq_clk_enable,
+	.disable = imx8mq_clk_disable,
+	.set_parent = imx8mq_clk_set_parent,
+};
+
+static int imx8mq_clk_probe(struct udevice *dev)
+{
+	void __iomem *base;
+
+	base = (void *)ANATOP_BASE_ADDR;
+
+	clk_dm(IMX8MQ_CLK_32K, clk_register_fixed_rate(NULL, "ckil", 32768));
+
+	clk_dm(IMX8MQ_DRAM_PLL1_REF_SEL,
+	       imx_clk_mux("dram_pll_ref_sel", base + 0x60, 0, 2,
+			   pll_ref_sels, ARRAY_SIZE(pll_ref_sels)));
+	clk_dm(IMX8MQ_ARM_PLL_REF_SEL,
+	       imx_clk_mux("arm_pll_ref_sel", base + 0x28, 0, 2,
+			   pll_ref_sels, ARRAY_SIZE(pll_ref_sels)));
+	clk_dm(IMX8MQ_GPU_PLL_REF_SEL,
+	       imx_clk_mux("gpu_pll_ref_sel", base + 0x18, 0, 2,
+			   pll_ref_sels, ARRAY_SIZE(pll_ref_sels)));
+	clk_dm(IMX8MQ_VPU_PLL_REF_SEL,
+	       imx_clk_mux("vpu_pll_ref_sel", base + 0x20, 0, 2,
+			   pll_ref_sels, ARRAY_SIZE(pll_ref_sels)));
+	clk_dm(IMX8MQ_SYS3_PLL1_REF_SEL,
+	       imx_clk_mux("sys3_pll_ref_sel", base + 0x48, 0, 2,
+			   pll_ref_sels, ARRAY_SIZE(pll_ref_sels)));
+	clk_dm(IMX8MQ_AUDIO_PLL1_REF_SEL,
+	       imx_clk_mux("audio_pll1_ref_sel", base + 0x0, 0, 2,
+			   pll_ref_sels, ARRAY_SIZE(pll_ref_sels)));
+	clk_dm(IMX8MQ_AUDIO_PLL2_REF_SEL,
+	       imx_clk_mux("audio_pll2_ref_sel", base + 0x8, 0, 2,
+			   pll_ref_sels, ARRAY_SIZE(pll_ref_sels)));
+	clk_dm(IMX8MQ_VIDEO_PLL1_REF_SEL,
+	       imx_clk_mux("video_pll1_ref_sel", base + 0x10, 0, 2,
+			   pll_ref_sels, ARRAY_SIZE(pll_ref_sels)));
+
+	clk_dm(IMX8MQ_ARM_PLL,
+	       imx_clk_pll14xx("arm_pll", "arm_pll_ref_sel",
+			       base + 0x28, &imx8mq_1416x_pll));
+	clk_dm(IMX8MQ_GPU_PLL,
+	       imx_clk_pll14xx("gpu_pll", "gpu_pll_ref_sel",
+			       base + 0x18, &imx8mq_1416x_pll));
+	clk_dm(IMX8MQ_VPU_PLL,
+	       imx_clk_pll14xx("vpu_pll", "vpu_pll_ref_sel",
+			       base + 0x20, &imx8mq_1416x_pll));
+
+	clk_dm(IMX8MQ_SYS1_PLL1,
+	       clk_register_fixed_rate(NULL, "sys1_pll", 800000000));
+	clk_dm(IMX8MQ_SYS2_PLL1,
+	       clk_register_fixed_rate(NULL, "sys2_pll", 1000000000));
+	clk_dm(IMX8MQ_SYS2_PLL1,
+	       clk_register_fixed_rate(NULL, "sys3_pll", 1000000000));
+	clk_dm(IMX8MQ_AUDIO_PLL1,
+	       imx_clk_pll14xx("audio_pll1", "audio_pll1_ref_sel",
+			       base + 0x0, &imx8mq_1443x_pll));
+	clk_dm(IMX8MQ_AUDIO_PLL2,
+	       imx_clk_pll14xx("audio_pll2", "audio_pll2_ref_sel",
+			       base + 0x8, &imx8mq_1443x_pll));
+	clk_dm(IMX8MQ_VIDEO_PLL1,
+	       imx_clk_pll14xx("video_pll1", "video_pll1_ref_sel",
+			       base + 0x10, &imx8mq_1443x_pll));
+
+	/* PLL bypass out */
+	clk_dm(IMX8MQ_ARM_PLL_BYPASS,
+	       imx_clk_mux_flags("arm_pll_bypass", base + 0x28, 4, 1,
+				 arm_pll_bypass_sels,
+				 ARRAY_SIZE(arm_pll_bypass_sels),
+				 CLK_SET_RATE_PARENT));
+	clk_dm(IMX8MQ_GPU_PLL_BYPASS,
+	       imx_clk_mux_flags("gpu_pll_bypass", base + 0x18, 4, 1,
+				 gpu_pll_bypass_sels,
+				 ARRAY_SIZE(gpu_pll_bypass_sels),
+				 CLK_SET_RATE_PARENT));
+	clk_dm(IMX8MQ_VPU_PLL_BYPASS,
+	       imx_clk_mux_flags("vpu_pll_bypass", base + 0x20, 4, 1,
+				 vpu_pll_bypass_sels,
+				 ARRAY_SIZE(vpu_pll_bypass_sels),
+				 CLK_SET_RATE_PARENT));
+	clk_dm(IMX8MQ_AUDIO_PLL1_BYPASS,
+	       imx_clk_mux_flags("audio_pll1_bypass", base + 0x0, 4, 1,
+				 audio_pll1_bypass_sels,
+				 ARRAY_SIZE(audio_pll1_bypass_sels),
+				 CLK_SET_RATE_PARENT));
+	clk_dm(IMX8MQ_AUDIO_PLL2_BYPASS,
+	       imx_clk_mux_flags("audio_pll2_bypass", base + 0x8, 4, 1,
+				 audio_pll2_bypass_sels,
+				 ARRAY_SIZE(audio_pll2_bypass_sels),
+				 CLK_SET_RATE_PARENT));
+	clk_dm(IMX8MQ_VIDEO_PLL1_BYPASS,
+	       imx_clk_mux_flags("video_pll1_bypass", base + 0x10, 4, 1,
+				 video_pll1_bypass_sels,
+				 ARRAY_SIZE(video_pll1_bypass_sels),
+				 CLK_SET_RATE_PARENT));
+
+	/* PLL out gate */
+	clk_dm(IMX8MQ_DRAM_PLL_OUT,
+	       imx_clk_gate("dram_pll_out", "dram_pll_ref_sel",
+			    base + 0x60, 13));
+	clk_dm(IMX8MQ_ARM_PLL_OUT,
+	       imx_clk_gate("arm_pll_out", "arm_pll_bypass",
+			    base + 0x28, 11));
+	clk_dm(IMX8MQ_GPU_PLL_OUT,
+	       imx_clk_gate("gpu_pll_out", "gpu_pll_bypass",
+			    base + 0x18, 11));
+	clk_dm(IMX8MQ_VPU_PLL_OUT,
+	       imx_clk_gate("vpu_pll_out", "vpu_pll_bypass",
+			    base + 0x20, 11));
+	clk_dm(IMX8MQ_AUDIO_PLL1_OUT,
+	       imx_clk_gate("audio_pll1_out", "audio_pll1_bypass",
+			    base + 0x0, 11));
+	clk_dm(IMX8MQ_AUDIO_PLL2_OUT,
+	       imx_clk_gate("audio_pll2_out", "audio_pll2_bypass",
+			    base + 0x8, 11));
+	clk_dm(IMX8MQ_VIDEO_PLL1_OUT,
+	       imx_clk_gate("video_pll1_out", "video_pll1_bypass",
+			    base + 0x10, 11));
+
+	clk_dm(IMX8MQ_SYS1_PLL_OUT,
+	       imx_clk_gate("sys_pll1_out", "sys1_pll",
+			    base + 0x30, 11));
+	clk_dm(IMX8MQ_SYS2_PLL_OUT,
+	       imx_clk_gate("sys_pll2_out", "sys2_pll",
+			    base + 0x3c, 11));
+	clk_dm(IMX8MQ_SYS3_PLL_OUT,
+	       imx_clk_gate("sys_pll3_out", "sys3_pll",
+			    base + 0x48, 11));
+
+	/* SYS PLL fixed output */
+	clk_dm(IMX8MQ_SYS1_PLL_40M,
+	       imx_clk_fixed_factor("sys_pll1_40m", "sys_pll1_out", 1, 20));
+	clk_dm(IMX8MQ_SYS1_PLL_80M,
+	       imx_clk_fixed_factor("sys_pll1_80m", "sys_pll1_out", 1, 10));
+	clk_dm(IMX8MQ_SYS1_PLL_100M,
+	       imx_clk_fixed_factor("sys_pll1_100m", "sys_pll1_out", 1, 8));
+	clk_dm(IMX8MQ_SYS1_PLL_133M,
+	       imx_clk_fixed_factor("sys_pll1_133m", "sys_pll1_out", 1, 6));
+	clk_dm(IMX8MQ_SYS1_PLL_160M,
+	       imx_clk_fixed_factor("sys_pll1_160m", "sys_pll1_out", 1, 5));
+	clk_dm(IMX8MQ_SYS1_PLL_200M,
+	       imx_clk_fixed_factor("sys_pll1_200m", "sys_pll1_out", 1, 4));
+	clk_dm(IMX8MQ_SYS1_PLL_266M,
+	       imx_clk_fixed_factor("sys_pll1_266m", "sys_pll1_out", 1, 3));
+	clk_dm(IMX8MQ_SYS1_PLL_400M,
+	       imx_clk_fixed_factor("sys_pll1_400m", "sys_pll1_out", 1, 2));
+	clk_dm(IMX8MQ_SYS1_PLL_800M,
+	       imx_clk_fixed_factor("sys_pll1_800m", "sys_pll1_out", 1, 1));
+
+	clk_dm(IMX8MQ_SYS2_PLL_50M,
+	       imx_clk_fixed_factor("sys_pll2_50m", "sys_pll2_out", 1, 20));
+	clk_dm(IMX8MQ_SYS2_PLL_100M,
+	       imx_clk_fixed_factor("sys_pll2_100m", "sys_pll2_out", 1, 10));
+	clk_dm(IMX8MQ_SYS2_PLL_125M,
+	       imx_clk_fixed_factor("sys_pll2_125m", "sys_pll2_out", 1, 8));
+	clk_dm(IMX8MQ_SYS2_PLL_166M,
+	       imx_clk_fixed_factor("sys_pll2_166m", "sys_pll2_out", 1, 6));
+	clk_dm(IMX8MQ_SYS2_PLL_200M,
+	       imx_clk_fixed_factor("sys_pll2_200m", "sys_pll2_out", 1, 5));
+	clk_dm(IMX8MQ_SYS2_PLL_250M,
+	       imx_clk_fixed_factor("sys_pll2_250m", "sys_pll2_out", 1, 4));
+	clk_dm(IMX8MQ_SYS2_PLL_333M,
+	       imx_clk_fixed_factor("sys_pll2_333m", "sys_pll2_out", 1, 3));
+	clk_dm(IMX8MQ_SYS2_PLL_500M,
+	       imx_clk_fixed_factor("sys_pll2_500m", "sys_pll2_out", 1, 2));
+	clk_dm(IMX8MQ_SYS2_PLL_1000M,
+	       imx_clk_fixed_factor("sys_pll2_1000m", "sys_pll2_out", 1, 1));
+
+	clk_dm(IMX8MQ_CLK_MON_AUDIO_PLL1_DIV,
+	       imx_clk_divider("audio_pll1_out_monitor", "audio_pll1_bypass", base + 0x78, 0, 3));
+	clk_dm(IMX8MQ_CLK_MON_AUDIO_PLL2_DIV,
+	       imx_clk_divider("audio_pll2_out_monitor", "audio_pll2_bypass", base + 0x78, 4, 3));
+	clk_dm(IMX8MQ_CLK_MON_VIDEO_PLL1_DIV,
+	       imx_clk_divider("video_pll1_out_monitor", "video_pll1_bypass", base + 0x78, 8, 3));
+	clk_dm(IMX8MQ_CLK_MON_GPU_PLL_DIV,
+	       imx_clk_divider("gpu_pll_out_monitor", "gpu_pll_bypass", base + 0x78, 12, 3));
+	clk_dm(IMX8MQ_CLK_MON_VPU_PLL_DIV,
+	       imx_clk_divider("vpu_pll_out_monitor", "vpu_pll_bypass", base + 0x78, 16, 3));
+	clk_dm(IMX8MQ_CLK_MON_ARM_PLL_DIV,
+	       imx_clk_divider("arm_pll_out_monitor", "arm_pll_bypass", base + 0x78, 20, 3));
+	clk_dm(IMX8MQ_CLK_MON_SYS_PLL1_DIV,
+	       imx_clk_divider("sys_pll1_out_monitor", "sys_pll1_out", base + 0x7c, 0, 3));
+	clk_dm(IMX8MQ_CLK_MON_SYS_PLL2_DIV,
+	       imx_clk_divider("sys_pll2_out_monitor", "sys_pll2_out", base + 0x7c, 4, 3));
+	clk_dm(IMX8MQ_CLK_MON_SYS_PLL3_DIV,
+	       imx_clk_divider("sys_pll3_out_monitor", "sys_pll3_out", base + 0x7c, 8, 3));
+	clk_dm(IMX8MQ_CLK_MON_DRAM_PLL_DIV,
+	       imx_clk_divider("dram_pll_out_monitor", "dram_pll_out", base + 0x7c, 12, 3));
+	clk_dm(IMX8MQ_CLK_MON_SEL,
+	       imx_clk_mux_flags("pllout_monitor_sel", base + 0x74, 0, 4,
+				 pllout_monitor_sels,
+				 ARRAY_SIZE(pllout_monitor_sels),
+				 CLK_SET_RATE_PARENT));
+	clk_dm(IMX8MQ_CLK_MON_CLK2_OUT,
+	       imx_clk_gate4("pllout_monitor_clk2", "pllout_monitor_sel", base + 0x74, 4));
+
+	base = dev_read_addr_ptr(dev);
+	if (!base) {
+		printf("%s : base failed\n", __func__);
+		return -EINVAL;
+	}
+
+	clk_dm(IMX8MQ_CLK_A53_SRC,
+	       imx_clk_mux2("arm_a53_src", base + 0x8000, 24, 3,
+			    imx8mq_a53_sels, ARRAY_SIZE(imx8mq_a53_sels)));
+	clk_dm(IMX8MQ_CLK_A53_CG,
+	       imx_clk_gate3("arm_a53_cg", "arm_a53_src", base + 0x8000, 28));
+	clk_dm(IMX8MQ_CLK_A53_DIV,
+	       imx_clk_divider2("arm_a53_div", "arm_a53_cg",
+				base + 0x8000, 0, 3));
+	clk_dm(IMX8MQ_CLK_A53_CORE,
+	       imx_clk_mux2("arm_a53_src", base + 0x9880, 24, 1,
+			    imx8mq_a53_core_sels, ARRAY_SIZE(imx8mq_a53_core_sels)));
+
+	clk_dm(IMX8MQ_CLK_AHB,
+	       imx8m_clk_composite_critical("ahb", imx8mq_ahb_sels,
+					    base + 0x9000));
+	clk_dm(IMX8MQ_CLK_IPG_ROOT,
+	       imx_clk_divider2("ipg_root", "ahb", base + 0x9080, 0, 1));
+
+	clk_dm(IMX8MQ_CLK_ENET_AXI,
+	       imx8m_clk_composite("enet_axi", imx8mq_enet_axi_sels,
+				   base + 0x8880));
+	clk_dm(IMX8MQ_CLK_NAND_USDHC_BUS,
+	       imx8m_clk_composite_critical("nand_usdhc_bus",
+					    imx8mq_nand_usdhc_sels,
+					    base + 0x8900));
+	clk_dm(IMX8MQ_CLK_USB_BUS,
+	       imx8m_clk_composite("usb_bus", imx8mq_usb_bus_sels, base + 0x8b80));
+
+	/* IP */
+	clk_dm(IMX8MQ_CLK_USDHC1,
+	       imx8m_clk_composite("usdhc1", imx8mq_usdhc1_sels,
+				   base + 0xac00));
+	clk_dm(IMX8MQ_CLK_USDHC2,
+	       imx8m_clk_composite("usdhc2", imx8mq_usdhc2_sels,
+				   base + 0xac80));
+	clk_dm(IMX8MQ_CLK_I2C1,
+	       imx8m_clk_composite("i2c1", imx8mq_i2c1_sels, base + 0xad00));
+	clk_dm(IMX8MQ_CLK_I2C2,
+	       imx8m_clk_composite("i2c2", imx8mq_i2c2_sels, base + 0xad80));
+	clk_dm(IMX8MQ_CLK_I2C3,
+	       imx8m_clk_composite("i2c3", imx8mq_i2c3_sels, base + 0xae00));
+	clk_dm(IMX8MQ_CLK_I2C4,
+	       imx8m_clk_composite("i2c4", imx8mq_i2c4_sels, base + 0xae80));
+	clk_dm(IMX8MQ_CLK_WDOG,
+	       imx8m_clk_composite("wdog", imx8mq_wdog_sels, base + 0xb900));
+	clk_dm(IMX8MQ_CLK_QSPI,
+	       imx8m_clk_composite("qspi", imx8mq_qspi_sels, base + 0xab80));
+	clk_dm(IMX8MQ_CLK_USB_CORE_REF,
+	       imx8m_clk_composite("usb_core_ref", imx8mq_usb_core_sels, base + 0xb100));
+	clk_dm(IMX8MQ_CLK_USB_PHY_REF,
+	       imx8m_clk_composite("usb_phy_ref", imx8mq_usb_phy_sels, base + 0xb180));
+	clk_dm(IMX8MQ_CLK_ECSPI1,
+	       imx8m_clk_composite("ecspi1", imx8mq_ecspi1_sels, base + 0xb280));
+	clk_dm(IMX8MQ_CLK_ECSPI2,
+	       imx8m_clk_composite("ecspi2", imx8mq_ecspi2_sels, base + 0xb300));
+	clk_dm(IMX8MQ_CLK_ECSPI3,
+	       imx8m_clk_composite("ecspi3", imx8mq_ecspi3_sels, base + 0xc180));
+
+	clk_dm(IMX8MQ_CLK_ECSPI1_ROOT,
+	       imx_clk_gate4("ecspi1_root_clk", "ecspi1", base + 0x4070, 0));
+	clk_dm(IMX8MQ_CLK_ECSPI2_ROOT,
+	       imx_clk_gate4("ecspi2_root_clk", "ecspi2", base + 0x4080, 0));
+	clk_dm(IMX8MQ_CLK_ECSPI3_ROOT,
+	       imx_clk_gate4("ecspi3_root_clk", "ecspi3", base + 0x4090, 0));
+	clk_dm(IMX8MQ_CLK_I2C1_ROOT,
+	       imx_clk_gate4("i2c1_root_clk", "i2c1", base + 0x4170, 0));
+	clk_dm(IMX8MQ_CLK_I2C2_ROOT,
+	       imx_clk_gate4("i2c2_root_clk", "i2c2", base + 0x4180, 0));
+	clk_dm(IMX8MQ_CLK_I2C3_ROOT,
+	       imx_clk_gate4("i2c3_root_clk", "i2c3", base + 0x4190, 0));
+	clk_dm(IMX8MQ_CLK_I2C4_ROOT,
+	       imx_clk_gate4("i2c4_root_clk", "i2c4", base + 0x41a0, 0));
+	clk_dm(IMX8MQ_CLK_OCOTP_ROOT,
+	       imx_clk_gate4("ocotp_root_clk", "ipg_root", base + 0x4220, 0));
+	clk_dm(IMX8MQ_CLK_USDHC1_ROOT,
+	       imx_clk_gate4("usdhc1_root_clk", "usdhc1", base + 0x4510, 0));
+	clk_dm(IMX8MQ_CLK_USDHC2_ROOT,
+	       imx_clk_gate4("usdhc2_root_clk", "usdhc2", base + 0x4520, 0));
+	clk_dm(IMX8MQ_CLK_WDOG1_ROOT,
+	       imx_clk_gate4("wdog1_root_clk", "wdog", base + 0x4530, 0));
+	clk_dm(IMX8MQ_CLK_WDOG2_ROOT,
+	       imx_clk_gate4("wdog2_root_clk", "wdog", base + 0x4540, 0));
+	clk_dm(IMX8MQ_CLK_WDOG3_ROOT,
+	       imx_clk_gate4("wdog3_root_clk", "wdog", base + 0x4550, 0));
+	clk_dm(IMX8MQ_CLK_QSPI_ROOT,
+	       imx_clk_gate4("qspi_root_clk", "qspi", base + 0x42f0, 0));
+	clk_dm(IMX8MQ_CLK_USB1_CTRL_ROOT,
+	       imx_clk_gate4("usb1_ctrl_root_clk", "usb_bus", base + 0x44d0, 0));
+	clk_dm(IMX8MQ_CLK_USB2_CTRL_ROOT,
+	       imx_clk_gate4("usb2_ctrl_root_clk", "usb_bus", base + 0x44e0, 0));
+	clk_dm(IMX8MQ_CLK_USB1_PHY_ROOT,
+	       imx_clk_gate4("usb1_phy_root_clk", "usb_phy_ref", base + 0x44f0, 0));
+	clk_dm(IMX8MQ_CLK_USB2_PHY_ROOT,
+	       imx_clk_gate4("usb2_phy_root_clk", "usb_phy_ref", base + 0x4500, 0));
+
+	clk_dm(IMX8MQ_CLK_ENET_REF,
+	       imx8m_clk_composite("enet_ref", imx8mq_enet_ref_sels,
+				   base + 0xa980));
+	clk_dm(IMX8MQ_CLK_ENET_TIMER,
+	       imx8m_clk_composite("enet_timer", imx8mq_enet_timer_sels,
+				   base + 0xaa00));
+	clk_dm(IMX8MQ_CLK_ENET_PHY_REF,
+	       imx8m_clk_composite("enet_phy", imx8mq_enet_phy_sels,
+				   base + 0xaa80));
+	clk_dm(IMX8MQ_CLK_ENET1_ROOT,
+	       imx_clk_gate4("enet1_root_clk", "enet_axi",
+			     base + 0x40a0, 0));
+
+	return 0;
+}
+
+static const struct udevice_id imx8mq_clk_ids[] = {
+	{ .compatible = "fsl,imx8mq-ccm" },
+	{ },
+};
+
+U_BOOT_DRIVER(imx8mq_clk) = {
+	.name = "clk_imx8mq",
+	.id = UCLASS_CLK,
+	.of_match = imx8mq_clk_ids,
+	.ops = &imx8mq_clk_ops,
+	.probe = imx8mq_clk_probe,
+	.flags = DM_FLAG_PRE_RELOC,
+};
-- 
2.25.1