clk: samsung: Introduce Exynos850 clock driver

This is the initial implementation adding only basic clocks like UART,
MMC, I2C and corresponding parent clocks. Design is influenced by
Exynos5433 clock driver.

Bus clock is enabled by default (in probe function) for all CMUs except
CMU_TOP, the reasoning is as follows. By default if bus clock has no
users its "enable count" value is 0. It might be actually running if
it's already enabled in bootloader, but then in some cases it can be
disabled by mistake. For example, such case was observed when
dw_mci_probe() enabled the bus clock, then failed to do something and
disabled that bus clock on error path. After that, even the attempt to
read the 'clk_summary' file in DebugFS freezed forever, as CMU bus clock
ended up being disabled and it wasn't possible to access CMU registers
anymore.

To avoid such cases, CMU driver must increment the ref count for that
bus clock by running clk_prepare_enable(). There is already existing
'.clk_name' field in struct samsung_cmu_info, exactly for that reason.
It was added in commit 523d3de41f02 ("clk: samsung: exynos5433: Add
support for runtime PM"), with next mentioning in commit message:

  > Also for each CMU there is one special parent clock, which has to be
  > enabled all the time when any access to CMU registers is being done.

But that clock is actually only enabled in Exynos5433 clock driver right
now. So the same code is added to exynos850_cmu_probe() function,
As was described above, it might be helpful not only for PM reasons, but
also to prevent possible erroneous clock gating on error paths.

Another way to workaround that issue would be to use CLOCK_IS_CRITICAL
flag for corresponding gate clocks. But that might be not very good
design decision, as we might still want to disable that bus clock, e.g.
on PM suspend.

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Link: https://lore.kernel.org/r/20211008154352.19519-6-semen.protsenko@linaro.org
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>

2 files changed, 836 insertions, 0 deletions

diff --git a/drivers/clk/samsung/Makefile b/drivers/clk/samsung/Makefile
index 028b2e27a37e..c46cf11e4d0b 100644
--- a/drivers/clk/samsung/Makefile
+++ b/drivers/clk/samsung/Makefile
@@ -17,6 +17,7 @@ obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK)	+= clk-exynos5433.o
 obj-$(CONFIG_EXYNOS_AUDSS_CLK_CON) += clk-exynos-audss.o
 obj-$(CONFIG_EXYNOS_CLKOUT)	+= clk-exynos-clkout.o
 obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK)	+= clk-exynos7.o
+obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK)	+= clk-exynos850.o
 obj-$(CONFIG_S3C2410_COMMON_CLK)+= clk-s3c2410.o
 obj-$(CONFIG_S3C2410_COMMON_DCLK)+= clk-s3c2410-dclk.o
 obj-$(CONFIG_S3C2412_COMMON_CLK)+= clk-s3c2412.o
diff --git a/drivers/clk/samsung/clk-exynos850.c b/drivers/clk/samsung/clk-exynos850.c
new file mode 100644
index 000000000000..2294989e244c
--- /dev/null
+++ b/drivers/clk/samsung/clk-exynos850.c
@@ -0,0 +1,835 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2021 Linaro Ltd.
+ * Author: Sam Protsenko <semen.protsenko@linaro.org>
+ *
+ * Common Clock Framework support for Exynos850 SoC.
+ */
+
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+
+#include <dt-bindings/clock/exynos850.h>
+
+#include "clk.h"
+
+/* Gate register bits */
+#define GATE_MANUAL		BIT(20)
+#define GATE_ENABLE_HWACG	BIT(28)
+
+/* Gate register offsets range */
+#define GATE_OFF_START		0x2000
+#define GATE_OFF_END		0x2fff
+
+/**
+ * exynos850_init_clocks - Set clocks initial configuration
+ * @np:			CMU device tree node with "reg" property (CMU addr)
+ * @reg_offs:		Register offsets array for clocks to init
+ * @reg_offs_len:	Number of register offsets in reg_offs array
+ *
+ * Set manual control mode for all gate clocks.
+ */
+static void __init exynos850_init_clocks(struct device_node *np,
+		const unsigned long *reg_offs, size_t reg_offs_len)
+{
+	void __iomem *reg_base;
+	size_t i;
+
+	reg_base = of_iomap(np, 0);
+	if (!reg_base)
+		panic("%s: failed to map registers\n", __func__);
+
+	for (i = 0; i < reg_offs_len; ++i) {
+		void __iomem *reg = reg_base + reg_offs[i];
+		u32 val;
+
+		/* Modify only gate clock registers */
+		if (reg_offs[i] < GATE_OFF_START || reg_offs[i] > GATE_OFF_END)
+			continue;
+
+		val = readl(reg);
+		val |= GATE_MANUAL;
+		val &= ~GATE_ENABLE_HWACG;
+		writel(val, reg);
+	}
+
+	iounmap(reg_base);
+}
+
+/* ---- CMU_TOP ------------------------------------------------------------- */
+
+/* Register Offset definitions for CMU_TOP (0x120e0000) */
+#define PLL_LOCKTIME_PLL_MMC			0x0000
+#define PLL_LOCKTIME_PLL_SHARED0		0x0004
+#define PLL_LOCKTIME_PLL_SHARED1		0x0008
+#define PLL_CON0_PLL_MMC			0x0100
+#define PLL_CON3_PLL_MMC			0x010c
+#define PLL_CON0_PLL_SHARED0			0x0140
+#define PLL_CON3_PLL_SHARED0			0x014c
+#define PLL_CON0_PLL_SHARED1			0x0180
+#define PLL_CON3_PLL_SHARED1			0x018c
+#define CLK_CON_MUX_MUX_CLKCMU_CORE_BUS		0x1014
+#define CLK_CON_MUX_MUX_CLKCMU_CORE_CCI		0x1018
+#define CLK_CON_MUX_MUX_CLKCMU_CORE_MMC_EMBD	0x101c
+#define CLK_CON_MUX_MUX_CLKCMU_CORE_SSS		0x1020
+#define CLK_CON_MUX_MUX_CLKCMU_DPU		0x1034
+#define CLK_CON_MUX_MUX_CLKCMU_HSI_BUS		0x103c
+#define CLK_CON_MUX_MUX_CLKCMU_HSI_MMC_CARD	0x1040
+#define CLK_CON_MUX_MUX_CLKCMU_HSI_USB20DRD	0x1044
+#define CLK_CON_MUX_MUX_CLKCMU_PERI_BUS		0x1070
+#define CLK_CON_MUX_MUX_CLKCMU_PERI_IP		0x1074
+#define CLK_CON_MUX_MUX_CLKCMU_PERI_UART	0x1078
+#define CLK_CON_DIV_CLKCMU_CORE_BUS		0x1820
+#define CLK_CON_DIV_CLKCMU_CORE_CCI		0x1824
+#define CLK_CON_DIV_CLKCMU_CORE_MMC_EMBD	0x1828
+#define CLK_CON_DIV_CLKCMU_CORE_SSS		0x182c
+#define CLK_CON_DIV_CLKCMU_DPU			0x1840
+#define CLK_CON_DIV_CLKCMU_HSI_BUS		0x1848
+#define CLK_CON_DIV_CLKCMU_HSI_MMC_CARD		0x184c
+#define CLK_CON_DIV_CLKCMU_HSI_USB20DRD		0x1850
+#define CLK_CON_DIV_CLKCMU_PERI_BUS		0x187c
+#define CLK_CON_DIV_CLKCMU_PERI_IP		0x1880
+#define CLK_CON_DIV_CLKCMU_PERI_UART		0x1884
+#define CLK_CON_DIV_PLL_SHARED0_DIV2		0x188c
+#define CLK_CON_DIV_PLL_SHARED0_DIV3		0x1890
+#define CLK_CON_DIV_PLL_SHARED0_DIV4		0x1894
+#define CLK_CON_DIV_PLL_SHARED1_DIV2		0x1898
+#define CLK_CON_DIV_PLL_SHARED1_DIV3		0x189c
+#define CLK_CON_DIV_PLL_SHARED1_DIV4		0x18a0
+#define CLK_CON_GAT_GATE_CLKCMU_CORE_BUS	0x201c
+#define CLK_CON_GAT_GATE_CLKCMU_CORE_CCI	0x2020
+#define CLK_CON_GAT_GATE_CLKCMU_CORE_MMC_EMBD	0x2024
+#define CLK_CON_GAT_GATE_CLKCMU_CORE_SSS	0x2028
+#define CLK_CON_GAT_GATE_CLKCMU_DPU		0x203c
+#define CLK_CON_GAT_GATE_CLKCMU_HSI_BUS		0x2044
+#define CLK_CON_GAT_GATE_CLKCMU_HSI_MMC_CARD	0x2048
+#define CLK_CON_GAT_GATE_CLKCMU_HSI_USB20DRD	0x204c
+#define CLK_CON_GAT_GATE_CLKCMU_PERI_BUS	0x2080
+#define CLK_CON_GAT_GATE_CLKCMU_PERI_IP		0x2084
+#define CLK_CON_GAT_GATE_CLKCMU_PERI_UART	0x2088
+
+static const unsigned long top_clk_regs[] __initconst = {
+	PLL_LOCKTIME_PLL_MMC,
+	PLL_LOCKTIME_PLL_SHARED0,
+	PLL_LOCKTIME_PLL_SHARED1,
+	PLL_CON0_PLL_MMC,
+	PLL_CON3_PLL_MMC,
+	PLL_CON0_PLL_SHARED0,
+	PLL_CON3_PLL_SHARED0,
+	PLL_CON0_PLL_SHARED1,
+	PLL_CON3_PLL_SHARED1,
+	CLK_CON_MUX_MUX_CLKCMU_CORE_BUS,
+	CLK_CON_MUX_MUX_CLKCMU_CORE_CCI,
+	CLK_CON_MUX_MUX_CLKCMU_CORE_MMC_EMBD,
+	CLK_CON_MUX_MUX_CLKCMU_CORE_SSS,
+	CLK_CON_MUX_MUX_CLKCMU_DPU,
+	CLK_CON_MUX_MUX_CLKCMU_HSI_BUS,
+	CLK_CON_MUX_MUX_CLKCMU_HSI_MMC_CARD,
+	CLK_CON_MUX_MUX_CLKCMU_HSI_USB20DRD,
+	CLK_CON_MUX_MUX_CLKCMU_PERI_BUS,
+	CLK_CON_MUX_MUX_CLKCMU_PERI_IP,
+	CLK_CON_MUX_MUX_CLKCMU_PERI_UART,
+	CLK_CON_DIV_CLKCMU_CORE_BUS,
+	CLK_CON_DIV_CLKCMU_CORE_CCI,
+	CLK_CON_DIV_CLKCMU_CORE_MMC_EMBD,
+	CLK_CON_DIV_CLKCMU_CORE_SSS,
+	CLK_CON_DIV_CLKCMU_DPU,
+	CLK_CON_DIV_CLKCMU_HSI_BUS,
+	CLK_CON_DIV_CLKCMU_HSI_MMC_CARD,
+	CLK_CON_DIV_CLKCMU_HSI_USB20DRD,
+	CLK_CON_DIV_CLKCMU_PERI_BUS,
+	CLK_CON_DIV_CLKCMU_PERI_IP,
+	CLK_CON_DIV_CLKCMU_PERI_UART,
+	CLK_CON_DIV_PLL_SHARED0_DIV2,
+	CLK_CON_DIV_PLL_SHARED0_DIV3,
+	CLK_CON_DIV_PLL_SHARED0_DIV4,
+	CLK_CON_DIV_PLL_SHARED1_DIV2,
+	CLK_CON_DIV_PLL_SHARED1_DIV3,
+	CLK_CON_DIV_PLL_SHARED1_DIV4,
+	CLK_CON_GAT_GATE_CLKCMU_CORE_BUS,
+	CLK_CON_GAT_GATE_CLKCMU_CORE_CCI,
+	CLK_CON_GAT_GATE_CLKCMU_CORE_MMC_EMBD,
+	CLK_CON_GAT_GATE_CLKCMU_CORE_SSS,
+	CLK_CON_GAT_GATE_CLKCMU_DPU,
+	CLK_CON_GAT_GATE_CLKCMU_HSI_BUS,
+	CLK_CON_GAT_GATE_CLKCMU_HSI_MMC_CARD,
+	CLK_CON_GAT_GATE_CLKCMU_HSI_USB20DRD,
+	CLK_CON_GAT_GATE_CLKCMU_PERI_BUS,
+	CLK_CON_GAT_GATE_CLKCMU_PERI_IP,
+	CLK_CON_GAT_GATE_CLKCMU_PERI_UART,
+};
+
+/*
+ * Do not provide PLL tables to core PLLs, as MANUAL_PLL_CTRL bit is not set
+ * for those PLLs by default, so set_rate operation would fail.
+ */
+static const struct samsung_pll_clock top_pll_clks[] __initconst = {
+	/* CMU_TOP_PURECLKCOMP */
+	PLL(pll_0822x, CLK_FOUT_SHARED0_PLL, "fout_shared0_pll", "oscclk",
+	    PLL_LOCKTIME_PLL_SHARED0, PLL_CON3_PLL_SHARED0,
+	    NULL),
+	PLL(pll_0822x, CLK_FOUT_SHARED1_PLL, "fout_shared1_pll", "oscclk",
+	    PLL_LOCKTIME_PLL_SHARED1, PLL_CON3_PLL_SHARED1,
+	    NULL),
+	PLL(pll_0831x, CLK_FOUT_MMC_PLL, "fout_mmc_pll", "oscclk",
+	    PLL_LOCKTIME_PLL_MMC, PLL_CON3_PLL_MMC, NULL),
+};
+
+/* List of parent clocks for Muxes in CMU_TOP */
+PNAME(mout_shared0_pll_p)	= { "oscclk", "fout_shared0_pll" };
+PNAME(mout_shared1_pll_p)	= { "oscclk", "fout_shared1_pll" };
+PNAME(mout_mmc_pll_p)		= { "oscclk", "fout_mmc_pll" };
+/* List of parent clocks for Muxes in CMU_TOP: for CMU_CORE */
+PNAME(mout_core_bus_p)		= { "dout_shared1_div2", "dout_shared0_div3",
+				    "dout_shared1_div3", "dout_shared0_div4" };
+PNAME(mout_core_cci_p)		= { "dout_shared0_div2", "dout_shared1_div2",
+				    "dout_shared0_div3", "dout_shared1_div3" };
+PNAME(mout_core_mmc_embd_p)	= { "oscclk", "dout_shared0_div2",
+				    "dout_shared1_div2", "dout_shared0_div3",
+				    "dout_shared1_div3", "mout_mmc_pll",
+				    "oscclk", "oscclk" };
+PNAME(mout_core_sss_p)		= { "dout_shared0_div3", "dout_shared1_div3",
+				    "dout_shared0_div4", "dout_shared1_div4" };
+/* List of parent clocks for Muxes in CMU_TOP: for CMU_HSI */
+PNAME(mout_hsi_bus_p)		= { "dout_shared0_div2", "dout_shared1_div2" };
+PNAME(mout_hsi_mmc_card_p)	= { "oscclk", "dout_shared0_div2",
+				    "dout_shared1_div2", "dout_shared0_div3",
+				    "dout_shared1_div3", "mout_mmc_pll",
+				    "oscclk", "oscclk" };
+PNAME(mout_hsi_usb20drd_p)	= { "oscclk", "dout_shared0_div4",
+				    "dout_shared1_div4", "oscclk" };
+/* List of parent clocks for Muxes in CMU_TOP: for CMU_PERI */
+PNAME(mout_peri_bus_p)		= { "dout_shared0_div4", "dout_shared1_div4" };
+PNAME(mout_peri_uart_p)		= { "oscclk", "dout_shared0_div4",
+				    "dout_shared1_div4", "oscclk" };
+PNAME(mout_peri_ip_p)		= { "oscclk", "dout_shared0_div4",
+				    "dout_shared1_div4", "oscclk" };
+
+/* List of parent clocks for Muxes in CMU_TOP: for CMU_DPU */
+PNAME(mout_dpu_p)		= { "dout_shared0_div3", "dout_shared1_div3",
+				    "dout_shared0_div4", "dout_shared1_div4" };
+
+static const struct samsung_mux_clock top_mux_clks[] __initconst = {
+	/* CMU_TOP_PURECLKCOMP */
+	MUX(CLK_MOUT_SHARED0_PLL, "mout_shared0_pll", mout_shared0_pll_p,
+	    PLL_CON0_PLL_SHARED0, 4, 1),
+	MUX(CLK_MOUT_SHARED1_PLL, "mout_shared1_pll", mout_shared1_pll_p,
+	    PLL_CON0_PLL_SHARED1, 4, 1),
+	MUX(CLK_MOUT_MMC_PLL, "mout_mmc_pll", mout_mmc_pll_p,
+	    PLL_CON0_PLL_MMC, 4, 1),
+
+	/* CORE */
+	MUX(CLK_MOUT_CORE_BUS, "mout_core_bus", mout_core_bus_p,
+	    CLK_CON_MUX_MUX_CLKCMU_CORE_BUS, 0, 2),
+	MUX(CLK_MOUT_CORE_CCI, "mout_core_cci", mout_core_cci_p,
+	    CLK_CON_MUX_MUX_CLKCMU_CORE_CCI, 0, 2),
+	MUX(CLK_MOUT_CORE_MMC_EMBD, "mout_core_mmc_embd", mout_core_mmc_embd_p,
+	    CLK_CON_MUX_MUX_CLKCMU_CORE_MMC_EMBD, 0, 3),
+	MUX(CLK_MOUT_CORE_SSS, "mout_core_sss", mout_core_sss_p,
+	    CLK_CON_MUX_MUX_CLKCMU_CORE_SSS, 0, 2),
+
+	/* DPU */
+	MUX(CLK_MOUT_DPU, "mout_dpu", mout_dpu_p,
+	    CLK_CON_MUX_MUX_CLKCMU_DPU, 0, 2),
+
+	/* HSI */
+	MUX(CLK_MOUT_HSI_BUS, "mout_hsi_bus", mout_hsi_bus_p,
+	    CLK_CON_MUX_MUX_CLKCMU_HSI_BUS, 0, 1),
+	MUX(CLK_MOUT_HSI_MMC_CARD, "mout_hsi_mmc_card", mout_hsi_mmc_card_p,
+	    CLK_CON_MUX_MUX_CLKCMU_HSI_MMC_CARD, 0, 3),
+	MUX(CLK_MOUT_HSI_USB20DRD, "mout_hsi_usb20drd", mout_hsi_usb20drd_p,
+	    CLK_CON_MUX_MUX_CLKCMU_HSI_USB20DRD, 0, 2),
+
+	/* PERI */
+	MUX(CLK_MOUT_PERI_BUS, "mout_peri_bus", mout_peri_bus_p,
+	    CLK_CON_MUX_MUX_CLKCMU_PERI_BUS, 0, 1),
+	MUX(CLK_MOUT_PERI_UART, "mout_peri_uart", mout_peri_uart_p,
+	    CLK_CON_MUX_MUX_CLKCMU_PERI_UART, 0, 2),
+	MUX(CLK_MOUT_PERI_IP, "mout_peri_ip", mout_peri_ip_p,
+	    CLK_CON_MUX_MUX_CLKCMU_PERI_IP, 0, 2),
+};
+
+static const struct samsung_div_clock top_div_clks[] __initconst = {
+	/* CMU_TOP_PURECLKCOMP */
+	DIV(CLK_DOUT_SHARED0_DIV3, "dout_shared0_div3", "mout_shared0_pll",
+	    CLK_CON_DIV_PLL_SHARED0_DIV3, 0, 2),
+	DIV(CLK_DOUT_SHARED0_DIV2, "dout_shared0_div2", "mout_shared0_pll",
+	    CLK_CON_DIV_PLL_SHARED0_DIV2, 0, 1),
+	DIV(CLK_DOUT_SHARED1_DIV3, "dout_shared1_div3", "mout_shared1_pll",
+	    CLK_CON_DIV_PLL_SHARED1_DIV3, 0, 2),
+	DIV(CLK_DOUT_SHARED1_DIV2, "dout_shared1_div2", "mout_shared1_pll",
+	    CLK_CON_DIV_PLL_SHARED1_DIV2, 0, 1),
+	DIV(CLK_DOUT_SHARED0_DIV4, "dout_shared0_div4", "dout_shared0_div2",
+	    CLK_CON_DIV_PLL_SHARED0_DIV4, 0, 1),
+	DIV(CLK_DOUT_SHARED1_DIV4, "dout_shared1_div4", "dout_shared1_div2",
+	    CLK_CON_DIV_PLL_SHARED1_DIV4, 0, 1),
+
+	/* CORE */
+	DIV(CLK_DOUT_CORE_BUS, "dout_core_bus", "gout_core_bus",
+	    CLK_CON_DIV_CLKCMU_CORE_BUS, 0, 4),
+	DIV(CLK_DOUT_CORE_CCI, "dout_core_cci", "gout_core_cci",
+	    CLK_CON_DIV_CLKCMU_CORE_CCI, 0, 4),
+	DIV(CLK_DOUT_CORE_MMC_EMBD, "dout_core_mmc_embd", "gout_core_mmc_embd",
+	    CLK_CON_DIV_CLKCMU_CORE_MMC_EMBD, 0, 9),
+	DIV(CLK_DOUT_CORE_SSS, "dout_core_sss", "gout_core_sss",
+	    CLK_CON_DIV_CLKCMU_CORE_SSS, 0, 4),
+
+	/* DPU */
+	DIV(CLK_DOUT_DPU, "dout_dpu", "gout_dpu",
+	    CLK_CON_DIV_CLKCMU_DPU, 0, 4),
+
+	/* HSI */
+	DIV(CLK_DOUT_HSI_BUS, "dout_hsi_bus", "gout_hsi_bus",
+	    CLK_CON_DIV_CLKCMU_HSI_BUS, 0, 4),
+	DIV(CLK_DOUT_HSI_MMC_CARD, "dout_hsi_mmc_card", "gout_hsi_mmc_card",
+	    CLK_CON_DIV_CLKCMU_HSI_MMC_CARD, 0, 9),
+	DIV(CLK_DOUT_HSI_USB20DRD, "dout_hsi_usb20drd", "gout_hsi_usb20drd",
+	    CLK_CON_DIV_CLKCMU_HSI_USB20DRD, 0, 4),
+
+	/* PERI */
+	DIV(CLK_DOUT_PERI_BUS, "dout_peri_bus", "gout_peri_bus",
+	    CLK_CON_DIV_CLKCMU_PERI_BUS, 0, 4),
+	DIV(CLK_DOUT_PERI_UART, "dout_peri_uart", "gout_peri_uart",
+	    CLK_CON_DIV_CLKCMU_PERI_UART, 0, 4),
+	DIV(CLK_DOUT_PERI_IP, "dout_peri_ip", "gout_peri_ip",
+	    CLK_CON_DIV_CLKCMU_PERI_IP, 0, 4),
+};
+
+static const struct samsung_gate_clock top_gate_clks[] __initconst = {
+	/* CORE */
+	GATE(CLK_GOUT_CORE_BUS, "gout_core_bus", "mout_core_bus",
+	     CLK_CON_GAT_GATE_CLKCMU_CORE_BUS, 21, 0, 0),
+	GATE(CLK_GOUT_CORE_CCI, "gout_core_cci", "mout_core_cci",
+	     CLK_CON_GAT_GATE_CLKCMU_CORE_CCI, 21, 0, 0),
+	GATE(CLK_GOUT_CORE_MMC_EMBD, "gout_core_mmc_embd", "mout_core_mmc_embd",
+	     CLK_CON_GAT_GATE_CLKCMU_CORE_MMC_EMBD, 21, 0, 0),
+	GATE(CLK_GOUT_CORE_SSS, "gout_core_sss", "mout_core_sss",
+	     CLK_CON_GAT_GATE_CLKCMU_CORE_SSS, 21, 0, 0),
+
+	/* DPU */
+	GATE(CLK_GOUT_DPU, "gout_dpu", "mout_dpu",
+	     CLK_CON_GAT_GATE_CLKCMU_DPU, 21, 0, 0),
+
+	/* HSI */
+	GATE(CLK_GOUT_HSI_BUS, "gout_hsi_bus", "mout_hsi_bus",
+	     CLK_CON_GAT_GATE_CLKCMU_HSI_BUS, 21, 0, 0),
+	GATE(CLK_GOUT_HSI_MMC_CARD, "gout_hsi_mmc_card", "mout_hsi_mmc_card",
+	     CLK_CON_GAT_GATE_CLKCMU_HSI_MMC_CARD, 21, 0, 0),
+	GATE(CLK_GOUT_HSI_USB20DRD, "gout_hsi_usb20drd", "mout_hsi_usb20drd",
+	     CLK_CON_GAT_GATE_CLKCMU_HSI_USB20DRD, 21, 0, 0),
+
+	/* PERI */
+	GATE(CLK_GOUT_PERI_BUS, "gout_peri_bus", "mout_peri_bus",
+	     CLK_CON_GAT_GATE_CLKCMU_PERI_BUS, 21, 0, 0),
+	GATE(CLK_GOUT_PERI_UART, "gout_peri_uart", "mout_peri_uart",
+	     CLK_CON_GAT_GATE_CLKCMU_PERI_UART, 21, 0, 0),
+	GATE(CLK_GOUT_PERI_IP, "gout_peri_ip", "mout_peri_ip",
+	     CLK_CON_GAT_GATE_CLKCMU_PERI_IP, 21, 0, 0),
+};
+
+static const struct samsung_cmu_info top_cmu_info __initconst = {
+	.pll_clks		= top_pll_clks,
+	.nr_pll_clks		= ARRAY_SIZE(top_pll_clks),
+	.mux_clks		= top_mux_clks,
+	.nr_mux_clks		= ARRAY_SIZE(top_mux_clks),
+	.div_clks		= top_div_clks,
+	.nr_div_clks		= ARRAY_SIZE(top_div_clks),
+	.gate_clks		= top_gate_clks,
+	.nr_gate_clks		= ARRAY_SIZE(top_gate_clks),
+	.nr_clk_ids		= TOP_NR_CLK,
+	.clk_regs		= top_clk_regs,
+	.nr_clk_regs		= ARRAY_SIZE(top_clk_regs),
+};
+
+static void __init exynos850_cmu_top_init(struct device_node *np)
+{
+	exynos850_init_clocks(np, top_clk_regs, ARRAY_SIZE(top_clk_regs));
+	samsung_cmu_register_one(np, &top_cmu_info);
+}
+
+CLK_OF_DECLARE(exynos850_cmu_top, "samsung,exynos850-cmu-top",
+	       exynos850_cmu_top_init);
+
+/* ---- CMU_HSI ------------------------------------------------------------- */
+
+/* Register Offset definitions for CMU_HSI (0x13400000) */
+#define PLL_CON0_MUX_CLKCMU_HSI_BUS_USER			0x0600
+#define PLL_CON0_MUX_CLKCMU_HSI_MMC_CARD_USER			0x0610
+#define PLL_CON0_MUX_CLKCMU_HSI_USB20DRD_USER			0x0620
+#define CLK_CON_MUX_MUX_CLK_HSI_RTC				0x1000
+#define CLK_CON_GAT_HSI_USB20DRD_TOP_I_RTC_CLK__ALV		0x2008
+#define CLK_CON_GAT_HSI_USB20DRD_TOP_I_REF_CLK_50		0x200c
+#define CLK_CON_GAT_HSI_USB20DRD_TOP_I_PHY_REFCLK_26		0x2010
+#define CLK_CON_GAT_GOUT_HSI_GPIO_HSI_PCLK			0x2018
+#define CLK_CON_GAT_GOUT_HSI_MMC_CARD_I_ACLK			0x2024
+#define CLK_CON_GAT_GOUT_HSI_MMC_CARD_SDCLKIN			0x2028
+#define CLK_CON_GAT_GOUT_HSI_SYSREG_HSI_PCLK			0x2038
+#define CLK_CON_GAT_GOUT_HSI_USB20DRD_TOP_ACLK_PHYCTRL_20	0x203c
+#define CLK_CON_GAT_GOUT_HSI_USB20DRD_TOP_BUS_CLK_EARLY		0x2040
+
+static const unsigned long hsi_clk_regs[] __initconst = {
+	PLL_CON0_MUX_CLKCMU_HSI_BUS_USER,
+	PLL_CON0_MUX_CLKCMU_HSI_MMC_CARD_USER,
+	PLL_CON0_MUX_CLKCMU_HSI_USB20DRD_USER,
+	CLK_CON_MUX_MUX_CLK_HSI_RTC,
+	CLK_CON_GAT_HSI_USB20DRD_TOP_I_RTC_CLK__ALV,
+	CLK_CON_GAT_HSI_USB20DRD_TOP_I_REF_CLK_50,
+	CLK_CON_GAT_HSI_USB20DRD_TOP_I_PHY_REFCLK_26,
+	CLK_CON_GAT_GOUT_HSI_GPIO_HSI_PCLK,
+	CLK_CON_GAT_GOUT_HSI_MMC_CARD_I_ACLK,
+	CLK_CON_GAT_GOUT_HSI_MMC_CARD_SDCLKIN,
+	CLK_CON_GAT_GOUT_HSI_SYSREG_HSI_PCLK,
+	CLK_CON_GAT_GOUT_HSI_USB20DRD_TOP_ACLK_PHYCTRL_20,
+	CLK_CON_GAT_GOUT_HSI_USB20DRD_TOP_BUS_CLK_EARLY,
+};
+
+/* List of parent clocks for Muxes in CMU_PERI */
+PNAME(mout_hsi_bus_user_p)	= { "oscclk", "dout_hsi_bus" };
+PNAME(mout_hsi_mmc_card_user_p)	= { "oscclk", "dout_hsi_mmc_card" };
+PNAME(mout_hsi_usb20drd_user_p)	= { "oscclk", "dout_hsi_usb20drd" };
+PNAME(mout_hsi_rtc_p)		= { "rtcclk", "oscclk" };
+
+static const struct samsung_mux_clock hsi_mux_clks[] __initconst = {
+	MUX(CLK_MOUT_HSI_BUS_USER, "mout_hsi_bus_user", mout_hsi_bus_user_p,
+	    PLL_CON0_MUX_CLKCMU_HSI_BUS_USER, 4, 1),
+	MUX_F(CLK_MOUT_HSI_MMC_CARD_USER, "mout_hsi_mmc_card_user",
+	      mout_hsi_mmc_card_user_p, PLL_CON0_MUX_CLKCMU_HSI_MMC_CARD_USER,
+	      4, 1, CLK_SET_RATE_PARENT, 0),
+	MUX(CLK_MOUT_HSI_USB20DRD_USER, "mout_hsi_usb20drd_user",
+	    mout_hsi_usb20drd_user_p, PLL_CON0_MUX_CLKCMU_HSI_USB20DRD_USER,
+	    4, 1),
+	MUX(CLK_MOUT_HSI_RTC, "mout_hsi_rtc", mout_hsi_rtc_p,
+	    CLK_CON_MUX_MUX_CLK_HSI_RTC, 0, 1),
+};
+
+static const struct samsung_gate_clock hsi_gate_clks[] __initconst = {
+	GATE(CLK_GOUT_USB_RTC_CLK, "gout_usb_rtc", "mout_hsi_rtc",
+	     CLK_CON_GAT_HSI_USB20DRD_TOP_I_RTC_CLK__ALV, 21, 0, 0),
+	GATE(CLK_GOUT_USB_REF_CLK, "gout_usb_ref", "mout_hsi_usb20drd_user",
+	     CLK_CON_GAT_HSI_USB20DRD_TOP_I_REF_CLK_50, 21, 0, 0),
+	GATE(CLK_GOUT_USB_PHY_REF_CLK, "gout_usb_phy_ref", "oscclk",
+	     CLK_CON_GAT_HSI_USB20DRD_TOP_I_PHY_REFCLK_26, 21, 0, 0),
+	GATE(CLK_GOUT_GPIO_HSI_PCLK, "gout_gpio_hsi_pclk", "mout_hsi_bus_user",
+	     CLK_CON_GAT_GOUT_HSI_GPIO_HSI_PCLK, 21, 0, 0),
+	GATE(CLK_GOUT_MMC_CARD_ACLK, "gout_mmc_card_aclk", "mout_hsi_bus_user",
+	     CLK_CON_GAT_GOUT_HSI_MMC_CARD_I_ACLK, 21, 0, 0),
+	GATE(CLK_GOUT_MMC_CARD_SDCLKIN, "gout_mmc_card_sdclkin",
+	     "mout_hsi_mmc_card_user",
+	     CLK_CON_GAT_GOUT_HSI_MMC_CARD_SDCLKIN, 21, CLK_SET_RATE_PARENT, 0),
+	GATE(CLK_GOUT_SYSREG_HSI_PCLK, "gout_sysreg_hsi_pclk",
+	     "mout_hsi_bus_user",
+	     CLK_CON_GAT_GOUT_HSI_SYSREG_HSI_PCLK, 21, 0, 0),
+	GATE(CLK_GOUT_USB_PHY_ACLK, "gout_usb_phy_aclk", "mout_hsi_bus_user",
+	     CLK_CON_GAT_GOUT_HSI_USB20DRD_TOP_ACLK_PHYCTRL_20, 21, 0, 0),
+	GATE(CLK_GOUT_USB_BUS_EARLY_CLK, "gout_usb_bus_early",
+	     "mout_hsi_bus_user",
+	     CLK_CON_GAT_GOUT_HSI_USB20DRD_TOP_BUS_CLK_EARLY, 21, 0, 0),
+};
+
+static const struct samsung_cmu_info hsi_cmu_info __initconst = {
+	.mux_clks		= hsi_mux_clks,
+	.nr_mux_clks		= ARRAY_SIZE(hsi_mux_clks),
+	.gate_clks		= hsi_gate_clks,
+	.nr_gate_clks		= ARRAY_SIZE(hsi_gate_clks),
+	.nr_clk_ids		= HSI_NR_CLK,
+	.clk_regs		= hsi_clk_regs,
+	.nr_clk_regs		= ARRAY_SIZE(hsi_clk_regs),
+	.clk_name		= "dout_hsi_bus",
+};
+
+/* ---- CMU_PERI ------------------------------------------------------------ */
+
+/* Register Offset definitions for CMU_PERI (0x10030000) */
+#define PLL_CON0_MUX_CLKCMU_PERI_BUS_USER	0x0600
+#define PLL_CON0_MUX_CLKCMU_PERI_HSI2C_USER	0x0610
+#define PLL_CON0_MUX_CLKCMU_PERI_SPI_USER	0x0620
+#define PLL_CON0_MUX_CLKCMU_PERI_UART_USER	0x0630
+#define CLK_CON_DIV_DIV_CLK_PERI_HSI2C_0	0x1800
+#define CLK_CON_DIV_DIV_CLK_PERI_HSI2C_1	0x1804
+#define CLK_CON_DIV_DIV_CLK_PERI_HSI2C_2	0x1808
+#define CLK_CON_DIV_DIV_CLK_PERI_SPI_0		0x180c
+#define CLK_CON_GAT_GATE_CLK_PERI_HSI2C_0	0x200c
+#define CLK_CON_GAT_GATE_CLK_PERI_HSI2C_1	0x2010
+#define CLK_CON_GAT_GATE_CLK_PERI_HSI2C_2	0x2014
+#define CLK_CON_GAT_GOUT_PERI_GPIO_PERI_PCLK	0x2020
+#define CLK_CON_GAT_GOUT_PERI_HSI2C_0_IPCLK	0x2024
+#define CLK_CON_GAT_GOUT_PERI_HSI2C_0_PCLK	0x2028
+#define CLK_CON_GAT_GOUT_PERI_HSI2C_1_IPCLK	0x202c
+#define CLK_CON_GAT_GOUT_PERI_HSI2C_1_PCLK	0x2030
+#define CLK_CON_GAT_GOUT_PERI_HSI2C_2_IPCLK	0x2034
+#define CLK_CON_GAT_GOUT_PERI_HSI2C_2_PCLK	0x2038
+#define CLK_CON_GAT_GOUT_PERI_I2C_0_PCLK	0x203c
+#define CLK_CON_GAT_GOUT_PERI_I2C_1_PCLK	0x2040
+#define CLK_CON_GAT_GOUT_PERI_I2C_2_PCLK	0x2044
+#define CLK_CON_GAT_GOUT_PERI_I2C_3_PCLK	0x2048
+#define CLK_CON_GAT_GOUT_PERI_I2C_4_PCLK	0x204c
+#define CLK_CON_GAT_GOUT_PERI_I2C_5_PCLK	0x2050
+#define CLK_CON_GAT_GOUT_PERI_I2C_6_PCLK	0x2054
+#define CLK_CON_GAT_GOUT_PERI_MCT_PCLK		0x205c
+#define CLK_CON_GAT_GOUT_PERI_PWM_MOTOR_PCLK	0x2064
+#define CLK_CON_GAT_GOUT_PERI_SPI_0_IPCLK	0x209c
+#define CLK_CON_GAT_GOUT_PERI_SPI_0_PCLK	0x20a0
+#define CLK_CON_GAT_GOUT_PERI_SYSREG_PERI_PCLK	0x20a4
+#define CLK_CON_GAT_GOUT_PERI_UART_IPCLK	0x20a8
+#define CLK_CON_GAT_GOUT_PERI_UART_PCLK		0x20ac
+#define CLK_CON_GAT_GOUT_PERI_WDT_0_PCLK	0x20b0
+#define CLK_CON_GAT_GOUT_PERI_WDT_1_PCLK	0x20b4
+
+static const unsigned long peri_clk_regs[] __initconst = {
+	PLL_CON0_MUX_CLKCMU_PERI_BUS_USER,
+	PLL_CON0_MUX_CLKCMU_PERI_HSI2C_USER,
+	PLL_CON0_MUX_CLKCMU_PERI_SPI_USER,
+	PLL_CON0_MUX_CLKCMU_PERI_UART_USER,
+	CLK_CON_DIV_DIV_CLK_PERI_HSI2C_0,
+	CLK_CON_DIV_DIV_CLK_PERI_HSI2C_1,
+	CLK_CON_DIV_DIV_CLK_PERI_HSI2C_2,
+	CLK_CON_DIV_DIV_CLK_PERI_SPI_0,
+	CLK_CON_GAT_GATE_CLK_PERI_HSI2C_0,
+	CLK_CON_GAT_GATE_CLK_PERI_HSI2C_1,
+	CLK_CON_GAT_GATE_CLK_PERI_HSI2C_2,
+	CLK_CON_GAT_GOUT_PERI_GPIO_PERI_PCLK,
+	CLK_CON_GAT_GOUT_PERI_HSI2C_0_IPCLK,
+	CLK_CON_GAT_GOUT_PERI_HSI2C_0_PCLK,
+	CLK_CON_GAT_GOUT_PERI_HSI2C_1_IPCLK,
+	CLK_CON_GAT_GOUT_PERI_HSI2C_1_PCLK,
+	CLK_CON_GAT_GOUT_PERI_HSI2C_2_IPCLK,
+	CLK_CON_GAT_GOUT_PERI_HSI2C_2_PCLK,
+	CLK_CON_GAT_GOUT_PERI_I2C_0_PCLK,
+	CLK_CON_GAT_GOUT_PERI_I2C_1_PCLK,
+	CLK_CON_GAT_GOUT_PERI_I2C_2_PCLK,
+	CLK_CON_GAT_GOUT_PERI_I2C_3_PCLK,
+	CLK_CON_GAT_GOUT_PERI_I2C_4_PCLK,
+	CLK_CON_GAT_GOUT_PERI_I2C_5_PCLK,
+	CLK_CON_GAT_GOUT_PERI_I2C_6_PCLK,
+	CLK_CON_GAT_GOUT_PERI_MCT_PCLK,
+	CLK_CON_GAT_GOUT_PERI_PWM_MOTOR_PCLK,
+	CLK_CON_GAT_GOUT_PERI_SPI_0_IPCLK,
+	CLK_CON_GAT_GOUT_PERI_SPI_0_PCLK,
+	CLK_CON_GAT_GOUT_PERI_SYSREG_PERI_PCLK,
+	CLK_CON_GAT_GOUT_PERI_UART_IPCLK,
+	CLK_CON_GAT_GOUT_PERI_UART_PCLK,
+	CLK_CON_GAT_GOUT_PERI_WDT_0_PCLK,
+	CLK_CON_GAT_GOUT_PERI_WDT_1_PCLK,
+};
+
+/* List of parent clocks for Muxes in CMU_PERI */
+PNAME(mout_peri_bus_user_p)	= { "oscclk", "dout_peri_bus" };
+PNAME(mout_peri_uart_user_p)	= { "oscclk", "dout_peri_uart" };
+PNAME(mout_peri_hsi2c_user_p)	= { "oscclk", "dout_peri_ip" };
+PNAME(mout_peri_spi_user_p)	= { "oscclk", "dout_peri_ip" };
+
+static const struct samsung_mux_clock peri_mux_clks[] __initconst = {
+	MUX(CLK_MOUT_PERI_BUS_USER, "mout_peri_bus_user", mout_peri_bus_user_p,
+	    PLL_CON0_MUX_CLKCMU_PERI_BUS_USER, 4, 1),
+	MUX(CLK_MOUT_PERI_UART_USER, "mout_peri_uart_user",
+	    mout_peri_uart_user_p, PLL_CON0_MUX_CLKCMU_PERI_UART_USER, 4, 1),
+	MUX(CLK_MOUT_PERI_HSI2C_USER, "mout_peri_hsi2c_user",
+	    mout_peri_hsi2c_user_p, PLL_CON0_MUX_CLKCMU_PERI_HSI2C_USER, 4, 1),
+	MUX(CLK_MOUT_PERI_SPI_USER, "mout_peri_spi_user", mout_peri_spi_user_p,
+	    PLL_CON0_MUX_CLKCMU_PERI_SPI_USER, 4, 1),
+};
+
+static const struct samsung_div_clock peri_div_clks[] __initconst = {
+	DIV(CLK_DOUT_PERI_HSI2C0, "dout_peri_hsi2c0", "gout_peri_hsi2c0",
+	    CLK_CON_DIV_DIV_CLK_PERI_HSI2C_0, 0, 5),
+	DIV(CLK_DOUT_PERI_HSI2C1, "dout_peri_hsi2c1", "gout_peri_hsi2c1",
+	    CLK_CON_DIV_DIV_CLK_PERI_HSI2C_1, 0, 5),
+	DIV(CLK_DOUT_PERI_HSI2C2, "dout_peri_hsi2c2", "gout_peri_hsi2c2",
+	    CLK_CON_DIV_DIV_CLK_PERI_HSI2C_2, 0, 5),
+	DIV(CLK_DOUT_PERI_SPI0, "dout_peri_spi0", "mout_peri_spi_user",
+	    CLK_CON_DIV_DIV_CLK_PERI_SPI_0, 0, 5),
+};
+
+static const struct samsung_gate_clock peri_gate_clks[] __initconst = {
+	GATE(CLK_GOUT_PERI_HSI2C0, "gout_peri_hsi2c0", "mout_peri_hsi2c_user",
+	     CLK_CON_GAT_GATE_CLK_PERI_HSI2C_0, 21, 0, 0),
+	GATE(CLK_GOUT_PERI_HSI2C1, "gout_peri_hsi2c1", "mout_peri_hsi2c_user",
+	     CLK_CON_GAT_GATE_CLK_PERI_HSI2C_1, 21, 0, 0),
+	GATE(CLK_GOUT_PERI_HSI2C2, "gout_peri_hsi2c2", "mout_peri_hsi2c_user",
+	     CLK_CON_GAT_GATE_CLK_PERI_HSI2C_2, 21, 0, 0),
+	GATE(CLK_GOUT_HSI2C0_IPCLK, "gout_hsi2c0_ipclk", "dout_peri_hsi2c0",
+	     CLK_CON_GAT_GOUT_PERI_HSI2C_0_IPCLK, 21, 0, 0),
+	GATE(CLK_GOUT_HSI2C0_PCLK, "gout_hsi2c0_pclk", "mout_peri_bus_user",
+	     CLK_CON_GAT_GOUT_PERI_HSI2C_0_PCLK, 21, 0, 0),
+	GATE(CLK_GOUT_HSI2C1_IPCLK, "gout_hsi2c1_ipclk", "dout_peri_hsi2c1",
+	     CLK_CON_GAT_GOUT_PERI_HSI2C_1_IPCLK, 21, 0, 0),
+	GATE(CLK_GOUT_HSI2C1_PCLK, "gout_hsi2c1_pclk", "mout_peri_bus_user",
+	     CLK_CON_GAT_GOUT_PERI_HSI2C_1_PCLK, 21, 0, 0),
+	GATE(CLK_GOUT_HSI2C2_IPCLK, "gout_hsi2c2_ipclk", "dout_peri_hsi2c2",
+	     CLK_CON_GAT_GOUT_PERI_HSI2C_2_IPCLK, 21, 0, 0),
+	GATE(CLK_GOUT_HSI2C2_PCLK, "gout_hsi2c2_pclk", "mout_peri_bus_user",
+	     CLK_CON_GAT_GOUT_PERI_HSI2C_2_PCLK, 21, 0, 0),
+	GATE(CLK_GOUT_I2C0_PCLK, "gout_i2c0_pclk", "mout_peri_bus_user",
+	     CLK_CON_GAT_GOUT_PERI_I2C_0_PCLK, 21, 0, 0),
+	GATE(CLK_GOUT_I2C1_PCLK, "gout_i2c1_pclk", "mout_peri_bus_user",
+	     CLK_CON_GAT_GOUT_PERI_I2C_1_PCLK, 21, 0, 0),
+	GATE(CLK_GOUT_I2C2_PCLK, "gout_i2c2_pclk", "mout_peri_bus_user",
+	     CLK_CON_GAT_GOUT_PERI_I2C_2_PCLK, 21, 0, 0),
+	GATE(CLK_GOUT_I2C3_PCLK, "gout_i2c3_pclk", "mout_peri_bus_user",
+	     CLK_CON_GAT_GOUT_PERI_I2C_3_PCLK, 21, 0, 0),
+	GATE(CLK_GOUT_I2C4_PCLK, "gout_i2c4_pclk", "mout_peri_bus_user",
+	     CLK_CON_GAT_GOUT_PERI_I2C_4_PCLK, 21, 0, 0),
+	GATE(CLK_GOUT_I2C5_PCLK, "gout_i2c5_pclk", "mout_peri_bus_user",
+	     CLK_CON_GAT_GOUT_PERI_I2C_5_PCLK, 21, 0, 0),
+	GATE(CLK_GOUT_I2C6_PCLK, "gout_i2c6_pclk", "mout_peri_bus_user",
+	     CLK_CON_GAT_GOUT_PERI_I2C_6_PCLK, 21, 0, 0),
+	GATE(CLK_GOUT_MCT_PCLK, "gout_mct_pclk", "mout_peri_bus_user",
+	     CLK_CON_GAT_GOUT_PERI_MCT_PCLK, 21, 0, 0),
+	GATE(CLK_GOUT_PWM_MOTOR_PCLK, "gout_pwm_motor_pclk",
+	     "mout_peri_bus_user",
+	     CLK_CON_GAT_GOUT_PERI_PWM_MOTOR_PCLK, 21, 0, 0),
+	GATE(CLK_GOUT_SPI0_IPCLK, "gout_spi0_ipclk", "dout_peri_spi0",
+	     CLK_CON_GAT_GOUT_PERI_SPI_0_IPCLK, 21, 0, 0),
+	GATE(CLK_GOUT_SPI0_PCLK, "gout_spi0_pclk", "mout_peri_bus_user",
+	     CLK_CON_GAT_GOUT_PERI_SPI_0_PCLK, 21, 0, 0),
+	GATE(CLK_GOUT_SYSREG_PERI_PCLK, "gout_sysreg_peri_pclk",
+	     "mout_peri_bus_user",
+	     CLK_CON_GAT_GOUT_PERI_SYSREG_PERI_PCLK, 21, 0, 0),
+	GATE(CLK_GOUT_UART_IPCLK, "gout_uart_ipclk", "mout_peri_uart_user",
+	     CLK_CON_GAT_GOUT_PERI_UART_IPCLK, 21, 0, 0),
+	GATE(CLK_GOUT_UART_PCLK, "gout_uart_pclk", "mout_peri_bus_user",
+	     CLK_CON_GAT_GOUT_PERI_UART_PCLK, 21, 0, 0),
+	GATE(CLK_GOUT_WDT0_PCLK, "gout_wdt0_pclk", "mout_peri_bus_user",
+	     CLK_CON_GAT_GOUT_PERI_WDT_0_PCLK, 21, 0, 0),
+	GATE(CLK_GOUT_WDT1_PCLK, "gout_wdt1_pclk", "mout_peri_bus_user",
+	     CLK_CON_GAT_GOUT_PERI_WDT_1_PCLK, 21, 0, 0),
+	GATE(CLK_GOUT_GPIO_PERI_PCLK, "gout_gpio_peri_pclk",
+	     "mout_peri_bus_user",
+	     CLK_CON_GAT_GOUT_PERI_GPIO_PERI_PCLK, 21, 0, 0),
+};
+
+static const struct samsung_cmu_info peri_cmu_info __initconst = {
+	.mux_clks		= peri_mux_clks,
+	.nr_mux_clks		= ARRAY_SIZE(peri_mux_clks),
+	.div_clks		= peri_div_clks,
+	.nr_div_clks		= ARRAY_SIZE(peri_div_clks),
+	.gate_clks		= peri_gate_clks,
+	.nr_gate_clks		= ARRAY_SIZE(peri_gate_clks),
+	.nr_clk_ids		= PERI_NR_CLK,
+	.clk_regs		= peri_clk_regs,
+	.nr_clk_regs		= ARRAY_SIZE(peri_clk_regs),
+	.clk_name		= "dout_peri_bus",
+};
+
+/* ---- CMU_CORE ------------------------------------------------------------ */
+
+/* Register Offset definitions for CMU_CORE (0x12000000) */
+#define PLL_CON0_MUX_CLKCMU_CORE_BUS_USER	0x0600
+#define PLL_CON0_MUX_CLKCMU_CORE_CCI_USER	0x0610
+#define PLL_CON0_MUX_CLKCMU_CORE_MMC_EMBD_USER	0x0620
+#define PLL_CON0_MUX_CLKCMU_CORE_SSS_USER	0x0630
+#define CLK_CON_MUX_MUX_CLK_CORE_GIC		0x1000
+#define CLK_CON_DIV_DIV_CLK_CORE_BUSP		0x1800
+#define CLK_CON_GAT_GOUT_CORE_CCI_550_ACLK	0x2038
+#define CLK_CON_GAT_GOUT_CORE_GIC_CLK		0x2040
+#define CLK_CON_GAT_GOUT_CORE_MMC_EMBD_I_ACLK	0x20e8
+#define CLK_CON_GAT_GOUT_CORE_MMC_EMBD_SDCLKIN	0x20ec
+#define CLK_CON_GAT_GOUT_CORE_SSS_I_ACLK	0x2128
+#define CLK_CON_GAT_GOUT_CORE_SSS_I_PCLK	0x212c
+
+static const unsigned long core_clk_regs[] __initconst = {
+	PLL_CON0_MUX_CLKCMU_CORE_BUS_USER,
+	PLL_CON0_MUX_CLKCMU_CORE_CCI_USER,
+	PLL_CON0_MUX_CLKCMU_CORE_MMC_EMBD_USER,
+	PLL_CON0_MUX_CLKCMU_CORE_SSS_USER,
+	CLK_CON_MUX_MUX_CLK_CORE_GIC,
+	CLK_CON_DIV_DIV_CLK_CORE_BUSP,
+	CLK_CON_GAT_GOUT_CORE_CCI_550_ACLK,
+	CLK_CON_GAT_GOUT_CORE_GIC_CLK,
+	CLK_CON_GAT_GOUT_CORE_MMC_EMBD_I_ACLK,
+	CLK_CON_GAT_GOUT_CORE_MMC_EMBD_SDCLKIN,
+	CLK_CON_GAT_GOUT_CORE_SSS_I_ACLK,
+	CLK_CON_GAT_GOUT_CORE_SSS_I_PCLK,
+};
+
+/* List of parent clocks for Muxes in CMU_CORE */
+PNAME(mout_core_bus_user_p)		= { "oscclk", "dout_core_bus" };
+PNAME(mout_core_cci_user_p)		= { "oscclk", "dout_core_cci" };
+PNAME(mout_core_mmc_embd_user_p)	= { "oscclk", "dout_core_mmc_embd" };
+PNAME(mout_core_sss_user_p)		= { "oscclk", "dout_core_sss" };
+PNAME(mout_core_gic_p)			= { "dout_core_busp", "oscclk" };
+
+static const struct samsung_mux_clock core_mux_clks[] __initconst = {
+	MUX(CLK_MOUT_CORE_BUS_USER, "mout_core_bus_user", mout_core_bus_user_p,
+	    PLL_CON0_MUX_CLKCMU_CORE_BUS_USER, 4, 1),
+	MUX(CLK_MOUT_CORE_CCI_USER, "mout_core_cci_user", mout_core_cci_user_p,
+	    PLL_CON0_MUX_CLKCMU_CORE_CCI_USER, 4, 1),
+	MUX_F(CLK_MOUT_CORE_MMC_EMBD_USER, "mout_core_mmc_embd_user",
+	      mout_core_mmc_embd_user_p, PLL_CON0_MUX_CLKCMU_CORE_MMC_EMBD_USER,
+	      4, 1, CLK_SET_RATE_PARENT, 0),
+	MUX(CLK_MOUT_CORE_SSS_USER, "mout_core_sss_user", mout_core_sss_user_p,
+	    PLL_CON0_MUX_CLKCMU_CORE_SSS_USER, 4, 1),
+	MUX(CLK_MOUT_CORE_GIC, "mout_core_gic", mout_core_gic_p,
+	    CLK_CON_MUX_MUX_CLK_CORE_GIC, 0, 1),
+};
+
+static const struct samsung_div_clock core_div_clks[] __initconst = {
+	DIV(CLK_DOUT_CORE_BUSP, "dout_core_busp", "mout_core_bus_user",
+	    CLK_CON_DIV_DIV_CLK_CORE_BUSP, 0, 2),
+};
+
+static const struct samsung_gate_clock core_gate_clks[] __initconst = {
+	GATE(CLK_GOUT_CCI_ACLK, "gout_cci_aclk", "mout_core_cci_user",
+	     CLK_CON_GAT_GOUT_CORE_CCI_550_ACLK, 21, 0, 0),
+	GATE(CLK_GOUT_GIC_CLK, "gout_gic_clk", "mout_core_gic",
+	     CLK_CON_GAT_GOUT_CORE_GIC_CLK, 21, 0, 0),
+	GATE(CLK_GOUT_MMC_EMBD_ACLK, "gout_mmc_embd_aclk", "dout_core_busp",
+	     CLK_CON_GAT_GOUT_CORE_MMC_EMBD_I_ACLK, 21, 0, 0),
+	GATE(CLK_GOUT_MMC_EMBD_SDCLKIN, "gout_mmc_embd_sdclkin",
+	     "mout_core_mmc_embd_user", CLK_CON_GAT_GOUT_CORE_MMC_EMBD_SDCLKIN,
+	     21, CLK_SET_RATE_PARENT, 0),
+	GATE(CLK_GOUT_SSS_ACLK, "gout_sss_aclk", "mout_core_sss_user",
+	     CLK_CON_GAT_GOUT_CORE_SSS_I_ACLK, 21, 0, 0),
+	GATE(CLK_GOUT_SSS_PCLK, "gout_sss_pclk", "dout_core_busp",
+	     CLK_CON_GAT_GOUT_CORE_SSS_I_PCLK, 21, 0, 0),
+};
+
+static const struct samsung_cmu_info core_cmu_info __initconst = {
+	.mux_clks		= core_mux_clks,
+	.nr_mux_clks		= ARRAY_SIZE(core_mux_clks),
+	.div_clks		= core_div_clks,
+	.nr_div_clks		= ARRAY_SIZE(core_div_clks),
+	.gate_clks		= core_gate_clks,
+	.nr_gate_clks		= ARRAY_SIZE(core_gate_clks),
+	.nr_clk_ids		= CORE_NR_CLK,
+	.clk_regs		= core_clk_regs,
+	.nr_clk_regs		= ARRAY_SIZE(core_clk_regs),
+	.clk_name		= "dout_core_bus",
+};
+
+/* ---- CMU_DPU ------------------------------------------------------------- */
+
+/* Register Offset definitions for CMU_DPU (0x13000000) */
+#define PLL_CON0_MUX_CLKCMU_DPU_USER		0x0600
+#define CLK_CON_DIV_DIV_CLK_DPU_BUSP		0x1800
+#define CLK_CON_GAT_CLK_DPU_CMU_DPU_PCLK	0x2004
+#define CLK_CON_GAT_GOUT_DPU_ACLK_DECON0	0x2010
+#define CLK_CON_GAT_GOUT_DPU_ACLK_DMA		0x2014
+#define CLK_CON_GAT_GOUT_DPU_ACLK_DPP		0x2018
+#define CLK_CON_GAT_GOUT_DPU_PPMU_ACLK		0x2028
+#define CLK_CON_GAT_GOUT_DPU_PPMU_PCLK		0x202c
+#define CLK_CON_GAT_GOUT_DPU_SMMU_CLK		0x2038
+#define CLK_CON_GAT_GOUT_DPU_SYSREG_PCLK	0x203c
+
+static const unsigned long dpu_clk_regs[] __initconst = {
+	PLL_CON0_MUX_CLKCMU_DPU_USER,
+	CLK_CON_DIV_DIV_CLK_DPU_BUSP,
+	CLK_CON_GAT_CLK_DPU_CMU_DPU_PCLK,
+	CLK_CON_GAT_GOUT_DPU_ACLK_DECON0,
+	CLK_CON_GAT_GOUT_DPU_ACLK_DMA,
+	CLK_CON_GAT_GOUT_DPU_ACLK_DPP,
+	CLK_CON_GAT_GOUT_DPU_PPMU_ACLK,
+	CLK_CON_GAT_GOUT_DPU_PPMU_PCLK,
+	CLK_CON_GAT_GOUT_DPU_SMMU_CLK,
+	CLK_CON_GAT_GOUT_DPU_SYSREG_PCLK,
+};
+
+/* List of parent clocks for Muxes in CMU_CORE */
+PNAME(mout_dpu_user_p)		= { "oscclk", "dout_dpu" };
+
+static const struct samsung_mux_clock dpu_mux_clks[] __initconst = {
+	MUX(CLK_MOUT_DPU_USER, "mout_dpu_user", mout_dpu_user_p,
+	    PLL_CON0_MUX_CLKCMU_DPU_USER, 4, 1),
+};
+
+static const struct samsung_div_clock dpu_div_clks[] __initconst = {
+	DIV(CLK_DOUT_DPU_BUSP, "dout_dpu_busp", "mout_dpu_user",
+	    CLK_CON_DIV_DIV_CLK_DPU_BUSP, 0, 3),
+};
+
+static const struct samsung_gate_clock dpu_gate_clks[] __initconst = {
+	GATE(CLK_GOUT_DPU_CMU_DPU_PCLK, "gout_dpu_cmu_dpu_pclk",
+	     "dout_dpu_busp", CLK_CON_GAT_CLK_DPU_CMU_DPU_PCLK, 21, 0, 0),
+	GATE(CLK_GOUT_DPU_DECON0_ACLK, "gout_dpu_decon0_aclk", "mout_dpu_user",
+	     CLK_CON_GAT_GOUT_DPU_ACLK_DECON0, 21, 0, 0),
+	GATE(CLK_GOUT_DPU_DMA_ACLK, "gout_dpu_dma_aclk", "mout_dpu_user",
+	     CLK_CON_GAT_GOUT_DPU_ACLK_DMA, 21, 0, 0),
+	GATE(CLK_GOUT_DPU_DPP_ACLK, "gout_dpu_dpp_aclk", "mout_dpu_user",
+	     CLK_CON_GAT_GOUT_DPU_ACLK_DPP, 21, 0, 0),
+	GATE(CLK_GOUT_DPU_PPMU_ACLK, "gout_dpu_ppmu_aclk", "mout_dpu_user",
+	     CLK_CON_GAT_GOUT_DPU_PPMU_ACLK, 21, 0, 0),
+	GATE(CLK_GOUT_DPU_PPMU_PCLK, "gout_dpu_ppmu_pclk", "dout_dpu_busp",
+	     CLK_CON_GAT_GOUT_DPU_PPMU_PCLK, 21, 0, 0),
+	GATE(CLK_GOUT_DPU_SMMU_CLK, "gout_dpu_smmu_clk", "mout_dpu_user",
+	     CLK_CON_GAT_GOUT_DPU_SMMU_CLK, 21, 0, 0),
+	GATE(CLK_GOUT_DPU_SYSREG_PCLK, "gout_dpu_sysreg_pclk", "dout_dpu_busp",
+	     CLK_CON_GAT_GOUT_DPU_SYSREG_PCLK, 21, 0, 0),
+};
+
+static const struct samsung_cmu_info dpu_cmu_info __initconst = {
+	.mux_clks		= dpu_mux_clks,
+	.nr_mux_clks		= ARRAY_SIZE(dpu_mux_clks),
+	.div_clks		= dpu_div_clks,
+	.nr_div_clks		= ARRAY_SIZE(dpu_div_clks),
+	.gate_clks		= dpu_gate_clks,
+	.nr_gate_clks		= ARRAY_SIZE(dpu_gate_clks),
+	.nr_clk_ids		= DPU_NR_CLK,
+	.clk_regs		= dpu_clk_regs,
+	.nr_clk_regs		= ARRAY_SIZE(dpu_clk_regs),
+	.clk_name		= "dout_dpu",
+};
+
+/* ---- platform_driver ----------------------------------------------------- */
+
+static int __init exynos850_cmu_probe(struct platform_device *pdev)
+{
+	const struct samsung_cmu_info *info;
+	struct device *dev = &pdev->dev;
+	struct device_node *np = dev->of_node;
+
+	info = of_device_get_match_data(dev);
+	exynos850_init_clocks(np, info->clk_regs, info->nr_clk_regs);
+	samsung_cmu_register_one(np, info);
+
+	/* Keep bus clock running, so it's possible to access CMU registers */
+	if (info->clk_name) {
+		struct clk *bus_clk;
+
+		bus_clk = clk_get(dev, info->clk_name);
+		if (IS_ERR(bus_clk)) {
+			pr_err("%s: could not find bus clock %s; err = %ld\n",
+			       __func__, info->clk_name, PTR_ERR(bus_clk));
+		} else {
+			clk_prepare_enable(bus_clk);
+		}
+	}
+
+	return 0;
+}
+
+/* CMUs which belong to Power Domains and need runtime PM to be implemented */
+static const struct of_device_id exynos850_cmu_of_match[] = {
+	{
+		.compatible = "samsung,exynos850-cmu-hsi",
+		.data = &hsi_cmu_info,
+	}, {
+		.compatible = "samsung,exynos850-cmu-peri",
+		.data = &peri_cmu_info,
+	}, {
+		.compatible = "samsung,exynos850-cmu-core",
+		.data = &core_cmu_info,
+	}, {
+		.compatible = "samsung,exynos850-cmu-dpu",
+		.data = &dpu_cmu_info,
+	}, {
+	},
+};
+
+static struct platform_driver exynos850_cmu_driver __refdata = {
+	.driver	= {
+		.name = "exynos850-cmu",
+		.of_match_table = exynos850_cmu_of_match,
+		.suppress_bind_attrs = true,
+	},
+	.probe = exynos850_cmu_probe,
+};
+
+static int __init exynos850_cmu_init(void)
+{
+	return platform_driver_register(&exynos850_cmu_driver);
+}
+core_initcall(exynos850_cmu_init);