]> git.ipfire.org Git - people/ms/u-boot.git/commitdiff
rk3399: add basic soc driver
authorKever Yang <kever.yang@rock-chips.com>
Fri, 29 Jul 2016 02:35:25 +0000 (10:35 +0800)
committerSimon Glass <sjg@chromium.org>
Fri, 5 Aug 2016 23:56:07 +0000 (17:56 -0600)
This patch add driver for:
- clock driver including set_rate for cpu, mmc, vop, I2C.
- sysreset driver
- grf syscon driver

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
arch/arm/include/asm/arch-rockchip/cru_rk3399.h [new file with mode: 0644]
arch/arm/mach-rockchip/rk3399/Makefile
arch/arm/mach-rockchip/rk3399/reset_rk3399.c [new file with mode: 0644]
arch/arm/mach-rockchip/rk3399/syscon_rk3399.c [new file with mode: 0644]
drivers/clk/Makefile
drivers/clk/clk_rk3399.c [new file with mode: 0644]

diff --git a/arch/arm/include/asm/arch-rockchip/cru_rk3399.h b/arch/arm/include/asm/arch-rockchip/cru_rk3399.h
new file mode 100644 (file)
index 0000000..c919f47
--- /dev/null
@@ -0,0 +1,93 @@
+/*
+ * (C) Copyright 2016 Rockchip Electronics Co., Ltd
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#ifndef __ASM_ARCH_CRU_RK3399_H_
+#define __ASM_ARCH_CRU_RK3399_H_
+
+#include <common.h>
+
+struct rk3399_pmucru {
+       u32 ppll_con[6];
+       u32 reserved[0x1a];
+       u32 pmucru_clksel[6];
+       u32 pmucru_clkfrac_con[2];
+       u32 reserved2[0x18];
+       u32 pmucru_clkgate_con[3];
+       u32 reserved3;
+       u32 pmucru_softrst_con[2];
+       u32 reserved4[2];
+       u32 pmucru_rstnhold_con[2];
+       u32 reserved5[2];
+       u32 pmucru_gatedis_con[2];
+};
+check_member(rk3399_pmucru, pmucru_gatedis_con[1], 0x134);
+
+struct rk3399_cru {
+       u32 apll_l_con[6];
+       u32 reserved[2];
+       u32 apll_b_con[6];
+       u32 reserved1[2];
+       u32 dpll_con[6];
+       u32 reserved2[2];
+       u32 cpll_con[6];
+       u32 reserved3[2];
+       u32 gpll_con[6];
+       u32 reserved4[2];
+       u32 npll_con[6];
+       u32 reserved5[2];
+       u32 vpll_con[6];
+       u32 reserved6[0x0a];
+       u32 clksel_con[108];
+       u32 reserved7[0x14];
+       u32 clkgate_con[35];
+       u32 reserved8[0x1d];
+       u32 softrst_con[21];
+       u32 reserved9[0x2b];
+       u32 glb_srst_fst_value;
+       u32 glb_srst_snd_value;
+       u32 glb_cnt_th;
+       u32 misc_con;
+       u32 glb_rst_con;
+       u32 glb_rst_st;
+       u32 reserved10[0x1a];
+       u32 sdmmc_con[2];
+       u32 sdio0_con[2];
+       u32 sdio1_con[2];
+};
+check_member(rk3399_cru, sdio1_con[1], 0x594);
+#define MHz            1000000
+#define KHz            1000
+#define OSC_HZ         (24*MHz)
+#define APLL_HZ                (600*MHz)
+#define GPLL_HZ                (594*MHz)
+#define CPLL_HZ                (384*MHz)
+#define PPLL_HZ                (594*MHz)
+
+#define PMU_PCLK_HZ    (99*MHz)
+
+#define ACLKM_CORE_HZ  (300*MHz)
+#define ATCLK_CORE_HZ  (300*MHz)
+#define PCLK_DBG_HZ    (100*MHz)
+
+#define PERIHP_ACLK_HZ (148500*KHz)
+#define PERIHP_HCLK_HZ (148500*KHz)
+#define PERIHP_PCLK_HZ (37125*KHz)
+
+#define PERILP0_ACLK_HZ        (99000*KHz)
+#define PERILP0_HCLK_HZ        (99000*KHz)
+#define PERILP0_PCLK_HZ        (49500*KHz)
+
+#define PERILP1_HCLK_HZ        (99000*KHz)
+#define PERILP1_PCLK_HZ        (49500*KHz)
+
+#define PWM_CLOCK_HZ    PMU_PCLK_HZ
+
+enum apll_l_frequencies {
+       APLL_L_1600_MHZ,
+       APLL_L_600_MHZ,
+};
+
+#endif /* __ASM_ARCH_CRU_RK3399_H_ */
index 3f219ac6f855f3ce141025245aa84b50123f5508..3ca20284ef976387ce55d0194167f6d8dccdc0bf 100644 (file)
@@ -5,3 +5,5 @@
 #
 
 obj-y += rk3399.o
+obj-y += reset_rk3399.o
+obj-y += syscon_rk3399.o
diff --git a/arch/arm/mach-rockchip/rk3399/reset_rk3399.c b/arch/arm/mach-rockchip/rk3399/reset_rk3399.c
new file mode 100644 (file)
index 0000000..9a55546
--- /dev/null
@@ -0,0 +1,45 @@
+/*
+ * (C) Copyright 2016 Rockchip Electronics Co., Ltd
+ *
+ * SPDX-License-Identifier:    GPL-2.0
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <errno.h>
+#include <sysreset.h>
+#include <asm/io.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/cru_rk3399.h>
+#include <asm/arch/hardware.h>
+#include <linux/err.h>
+
+int rk3399_sysreset_request(struct udevice *dev, enum sysreset_t type)
+{
+       struct rk3399_cru *cru = rockchip_get_cru();
+
+       if (IS_ERR(cru))
+               return PTR_ERR(cru);
+       switch (type) {
+       case SYSRESET_WARM:
+               writel(0xeca8, &cru->glb_srst_snd_value);
+               break;
+       case SYSRESET_COLD:
+               writel(0xfdb9, &cru->glb_srst_fst_value);
+               break;
+       default:
+               return -EPROTONOSUPPORT;
+       }
+
+       return -EINPROGRESS;
+}
+
+static struct sysreset_ops rk3399_sysreset = {
+       .request        = rk3399_sysreset_request,
+};
+
+U_BOOT_DRIVER(sysreset_rk3399) = {
+       .name   = "rk3399_sysreset",
+       .id     = UCLASS_SYSRESET,
+       .ops    = &rk3399_sysreset,
+};
diff --git a/arch/arm/mach-rockchip/rk3399/syscon_rk3399.c b/arch/arm/mach-rockchip/rk3399/syscon_rk3399.c
new file mode 100644 (file)
index 0000000..2d81c55
--- /dev/null
@@ -0,0 +1,20 @@
+/*
+ * (C) Copyright 2016 Rockchip Electronics Co., Ltd
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <syscon.h>
+#include <asm/arch/clock.h>
+
+static const struct udevice_id rk3399_syscon_ids[] = {
+       { .compatible = "rockchip,rk3399-grf", .data = ROCKCHIP_SYSCON_GRF },
+};
+
+U_BOOT_DRIVER(syscon_rk3399) = {
+       .name = "rk3399_syscon",
+       .id = UCLASS_SYSCON,
+       .of_match = rk3399_syscon_ids,
+};
index f7a88912e06a0b143b34826fc0e48e0ad7e13117..e20e93233722a7b34f2aff6e2b1add0f8f70bdd7 100644 (file)
@@ -8,6 +8,7 @@
 obj-$(CONFIG_CLK) += clk-uclass.o clk_fixed_rate.o
 obj-$(CONFIG_ROCKCHIP_RK3036) += clk_rk3036.o
 obj-$(CONFIG_ROCKCHIP_RK3288) += clk_rk3288.o
+obj-$(CONFIG_ROCKCHIP_RK3399) += clk_rk3399.o
 obj-$(CONFIG_SANDBOX) += clk_sandbox.o
 obj-$(CONFIG_SANDBOX) += clk_sandbox_test.o
 obj-$(CONFIG_MACH_PIC32) += clk_pic32.o
diff --git a/drivers/clk/clk_rk3399.c b/drivers/clk/clk_rk3399.c
new file mode 100644 (file)
index 0000000..c0bb80c
--- /dev/null
@@ -0,0 +1,819 @@
+/*
+ * (C) Copyright 2015 Google, Inc
+ *
+ * SPDX-License-Identifier:    GPL-2.0
+ */
+
+#include <common.h>
+#include <clk-uclass.h>
+#include <dm.h>
+#include <errno.h>
+#include <syscon.h>
+#include <asm/io.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/cru_rk3399.h>
+#include <asm/arch/hardware.h>
+#include <dm/lists.h>
+#include <dt-bindings/clock/rk3399-cru.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+struct rk3399_clk_priv {
+       struct rk3399_cru *cru;
+       ulong rate;
+};
+
+struct pll_div {
+       u32 refdiv;
+       u32 fbdiv;
+       u32 postdiv1;
+       u32 postdiv2;
+       u32 frac;
+};
+
+#define RATE_TO_DIV(input_rate, output_rate) \
+       ((input_rate) / (output_rate) - 1);
+#define DIV_TO_RATE(input_rate, div)    ((input_rate) / ((div) + 1))
+
+#define PLL_DIVISORS(hz, _refdiv, _postdiv1, _postdiv2) {\
+       .refdiv = _refdiv,\
+       .fbdiv = (u32)((u64)hz * _refdiv * _postdiv1 * _postdiv2 / OSC_HZ),\
+       .postdiv1 = _postdiv1, .postdiv2 = _postdiv2};
+
+static const struct pll_div gpll_init_cfg = PLL_DIVISORS(GPLL_HZ, 2, 2, 1);
+static const struct pll_div cpll_init_cfg = PLL_DIVISORS(CPLL_HZ, 1, 2, 2);
+static const struct pll_div ppll_init_cfg = PLL_DIVISORS(PPLL_HZ, 2, 2, 1);
+
+static const struct pll_div apll_l_1600_cfg = PLL_DIVISORS(1600*MHz, 3, 1, 1);
+static const struct pll_div apll_l_600_cfg = PLL_DIVISORS(600*MHz, 1, 2, 1);
+
+static const struct pll_div *apll_l_cfgs[] = {
+       [APLL_L_1600_MHZ] = &apll_l_1600_cfg,
+       [APLL_L_600_MHZ] = &apll_l_600_cfg,
+};
+
+enum {
+       /* PLL_CON0 */
+       PLL_FBDIV_MASK                  = 0xfff,
+       PLL_FBDIV_SHIFT                 = 0,
+
+       /* PLL_CON1 */
+       PLL_POSTDIV2_SHIFT              = 12,
+       PLL_POSTDIV2_MASK               = 0x7 << PLL_POSTDIV2_SHIFT,
+       PLL_POSTDIV1_SHIFT              = 8,
+       PLL_POSTDIV1_MASK               = 0x7 << PLL_POSTDIV1_SHIFT,
+       PLL_REFDIV_MASK                 = 0x3f,
+       PLL_REFDIV_SHIFT                = 0,
+
+       /* PLL_CON2 */
+       PLL_LOCK_STATUS_SHIFT           = 31,
+       PLL_LOCK_STATUS_MASK            = 1 << PLL_LOCK_STATUS_SHIFT,
+       PLL_FRACDIV_MASK                = 0xffffff,
+       PLL_FRACDIV_SHIFT               = 0,
+
+       /* PLL_CON3 */
+       PLL_MODE_SHIFT                  = 8,
+       PLL_MODE_MASK                   = 3 << PLL_MODE_SHIFT,
+       PLL_MODE_SLOW                   = 0,
+       PLL_MODE_NORM,
+       PLL_MODE_DEEP,
+       PLL_DSMPD_SHIFT                 = 3,
+       PLL_DSMPD_MASK                  = 1 << PLL_DSMPD_SHIFT,
+       PLL_INTEGER_MODE                = 1,
+
+       /* PMUCRU_CLKSEL_CON0 */
+       PMU_PCLK_DIV_CON_MASK           = 0x1f,
+       PMU_PCLK_DIV_CON_SHIFT          = 0,
+
+       /* PMUCRU_CLKSEL_CON1 */
+       SPI3_PLL_SEL_SHIFT              = 7,
+       SPI3_PLL_SEL_MASK               = 1 << SPI3_PLL_SEL_SHIFT,
+       SPI3_PLL_SEL_24M                = 0,
+       SPI3_PLL_SEL_PPLL               = 1,
+       SPI3_DIV_CON_SHIFT              = 0x0,
+       SPI3_DIV_CON_MASK               = 0x7f,
+
+       /* PMUCRU_CLKSEL_CON2 */
+       I2C_DIV_CON_MASK                = 0x7f,
+       I2C8_DIV_CON_SHIFT              = 8,
+       I2C0_DIV_CON_SHIFT              = 0,
+
+       /* PMUCRU_CLKSEL_CON3 */
+       I2C4_DIV_CON_SHIFT              = 0,
+
+       /* CLKSEL_CON0 */
+       ACLKM_CORE_L_DIV_CON_SHIFT      = 8,
+       ACLKM_CORE_L_DIV_CON_MASK       = 0x1f << ACLKM_CORE_L_DIV_CON_SHIFT,
+       CLK_CORE_L_PLL_SEL_SHIFT        = 6,
+       CLK_CORE_L_PLL_SEL_MASK         = 3 << CLK_CORE_L_PLL_SEL_SHIFT,
+       CLK_CORE_L_PLL_SEL_ALPLL        = 0x0,
+       CLK_CORE_L_PLL_SEL_ABPLL        = 0x1,
+       CLK_CORE_L_PLL_SEL_DPLL         = 0x10,
+       CLK_CORE_L_PLL_SEL_GPLL         = 0x11,
+       CLK_CORE_L_DIV_MASK             = 0x1f,
+       CLK_CORE_L_DIV_SHIFT            = 0,
+
+       /* CLKSEL_CON1 */
+       PCLK_DBG_L_DIV_SHIFT            = 0x8,
+       PCLK_DBG_L_DIV_MASK             = 0x1f << PCLK_DBG_L_DIV_SHIFT,
+       ATCLK_CORE_L_DIV_SHIFT          = 0,
+       ATCLK_CORE_L_DIV_MASK           = 0x1f << ATCLK_CORE_L_DIV_SHIFT,
+
+       /* CLKSEL_CON14 */
+       PCLK_PERIHP_DIV_CON_SHIFT       = 12,
+       PCLK_PERIHP_DIV_CON_MASK        = 0x7 << PCLK_PERIHP_DIV_CON_SHIFT,
+       HCLK_PERIHP_DIV_CON_SHIFT       = 8,
+       HCLK_PERIHP_DIV_CON_MASK        = 3 << HCLK_PERIHP_DIV_CON_SHIFT,
+       ACLK_PERIHP_PLL_SEL_SHIFT       = 7,
+       ACLK_PERIHP_PLL_SEL_MASK        = 1 << ACLK_PERIHP_PLL_SEL_SHIFT,
+       ACLK_PERIHP_PLL_SEL_CPLL        = 0,
+       ACLK_PERIHP_PLL_SEL_GPLL        = 1,
+       ACLK_PERIHP_DIV_CON_SHIFT       = 0,
+       ACLK_PERIHP_DIV_CON_MASK        = 0x1f,
+
+       /* CLKSEL_CON21 */
+       ACLK_EMMC_PLL_SEL_SHIFT         = 7,
+       ACLK_EMMC_PLL_SEL_MASK          = 0x1 << ACLK_EMMC_PLL_SEL_SHIFT,
+       ACLK_EMMC_PLL_SEL_GPLL          = 0x1,
+       ACLK_EMMC_DIV_CON_SHIFT         = 0,
+       ACLK_EMMC_DIV_CON_MASK          = 0x1f,
+
+       /* CLKSEL_CON22 */
+       CLK_EMMC_PLL_SHIFT              = 8,
+       CLK_EMMC_PLL_MASK               = 0x7 << CLK_EMMC_PLL_SHIFT,
+       CLK_EMMC_PLL_SEL_GPLL           = 0x1,
+       CLK_EMMC_DIV_CON_SHIFT          = 0,
+       CLK_EMMC_DIV_CON_MASK           = 0x7f << CLK_EMMC_DIV_CON_SHIFT,
+
+       /* CLKSEL_CON23 */
+       PCLK_PERILP0_DIV_CON_SHIFT      = 12,
+       PCLK_PERILP0_DIV_CON_MASK       = 0x7 << PCLK_PERILP0_DIV_CON_SHIFT,
+       HCLK_PERILP0_DIV_CON_SHIFT      = 8,
+       HCLK_PERILP0_DIV_CON_MASK       = 3 << HCLK_PERILP0_DIV_CON_SHIFT,
+       ACLK_PERILP0_PLL_SEL_SHIFT      = 7,
+       ACLK_PERILP0_PLL_SEL_MASK       = 1 << ACLK_PERILP0_PLL_SEL_SHIFT,
+       ACLK_PERILP0_PLL_SEL_CPLL       = 0,
+       ACLK_PERILP0_PLL_SEL_GPLL       = 1,
+       ACLK_PERILP0_DIV_CON_SHIFT      = 0,
+       ACLK_PERILP0_DIV_CON_MASK       = 0x1f,
+
+       /* CLKSEL_CON25 */
+       PCLK_PERILP1_DIV_CON_SHIFT      = 8,
+       PCLK_PERILP1_DIV_CON_MASK       = 0x7 << PCLK_PERILP1_DIV_CON_SHIFT,
+       HCLK_PERILP1_PLL_SEL_SHIFT      = 7,
+       HCLK_PERILP1_PLL_SEL_MASK       = 1 << HCLK_PERILP1_PLL_SEL_SHIFT,
+       HCLK_PERILP1_PLL_SEL_CPLL       = 0,
+       HCLK_PERILP1_PLL_SEL_GPLL       = 1,
+       HCLK_PERILP1_DIV_CON_SHIFT      = 0,
+       HCLK_PERILP1_DIV_CON_MASK       = 0x1f,
+
+       /* CLKSEL_CON26 */
+       CLK_SARADC_DIV_CON_SHIFT        = 8,
+       CLK_SARADC_DIV_CON_MASK         = 0xff << CLK_SARADC_DIV_CON_SHIFT,
+
+       /* CLKSEL_CON27 */
+       CLK_TSADC_SEL_X24M              = 0x0,
+       CLK_TSADC_SEL_SHIFT             = 15,
+       CLK_TSADC_SEL_MASK              = 1 << CLK_TSADC_SEL_SHIFT,
+       CLK_TSADC_DIV_CON_SHIFT         = 0,
+       CLK_TSADC_DIV_CON_MASK          = 0x3ff,
+
+       /* CLKSEL_CON47 & CLKSEL_CON48 */
+       ACLK_VOP_PLL_SEL_SHIFT          = 6,
+       ACLK_VOP_PLL_SEL_MASK           = 0x3 << ACLK_VOP_PLL_SEL_SHIFT,
+       ACLK_VOP_PLL_SEL_CPLL           = 0x1,
+       ACLK_VOP_DIV_CON_SHIFT          = 0,
+       ACLK_VOP_DIV_CON_MASK           = 0x1f << ACLK_VOP_DIV_CON_SHIFT,
+
+       /* CLKSEL_CON49 & CLKSEL_CON50 */
+       DCLK_VOP_DCLK_SEL_SHIFT         = 11,
+       DCLK_VOP_DCLK_SEL_MASK          = 1 << DCLK_VOP_DCLK_SEL_SHIFT,
+       DCLK_VOP_DCLK_SEL_DIVOUT        = 0,
+       DCLK_VOP_PLL_SEL_SHIFT          = 8,
+       DCLK_VOP_PLL_SEL_MASK           = 3 << DCLK_VOP_PLL_SEL_SHIFT,
+       DCLK_VOP_PLL_SEL_VPLL           = 0,
+       DCLK_VOP_DIV_CON_MASK           = 0xff,
+       DCLK_VOP_DIV_CON_SHIFT          = 0,
+
+       /* CLKSEL_CON58 */
+       CLK_SPI_PLL_SEL_MASK            = 1,
+       CLK_SPI_PLL_SEL_CPLL            = 0,
+       CLK_SPI_PLL_SEL_GPLL            = 1,
+       CLK_SPI_PLL_DIV_CON_MASK        = 0x7f,
+       CLK_SPI5_PLL_DIV_CON_SHIFT      = 8,
+       CLK_SPI5_PLL_SEL_SHIFT          = 15,
+
+       /* CLKSEL_CON59 */
+       CLK_SPI1_PLL_SEL_SHIFT          = 15,
+       CLK_SPI1_PLL_DIV_CON_SHIFT      = 8,
+       CLK_SPI0_PLL_SEL_SHIFT          = 7,
+       CLK_SPI0_PLL_DIV_CON_SHIFT      = 0,
+
+       /* CLKSEL_CON60 */
+       CLK_SPI4_PLL_SEL_SHIFT          = 15,
+       CLK_SPI4_PLL_DIV_CON_SHIFT      = 8,
+       CLK_SPI2_PLL_SEL_SHIFT          = 7,
+       CLK_SPI2_PLL_DIV_CON_SHIFT      = 0,
+
+       /* CLKSEL_CON61 */
+       CLK_I2C_PLL_SEL_MASK            = 1,
+       CLK_I2C_PLL_SEL_CPLL            = 0,
+       CLK_I2C_PLL_SEL_GPLL            = 1,
+       CLK_I2C5_PLL_SEL_SHIFT          = 15,
+       CLK_I2C5_DIV_CON_SHIFT          = 8,
+       CLK_I2C1_PLL_SEL_SHIFT          = 7,
+       CLK_I2C1_DIV_CON_SHIFT          = 0,
+
+       /* CLKSEL_CON62 */
+       CLK_I2C6_PLL_SEL_SHIFT          = 15,
+       CLK_I2C6_DIV_CON_SHIFT          = 8,
+       CLK_I2C2_PLL_SEL_SHIFT          = 7,
+       CLK_I2C2_DIV_CON_SHIFT          = 0,
+
+       /* CLKSEL_CON63 */
+       CLK_I2C7_PLL_SEL_SHIFT          = 15,
+       CLK_I2C7_DIV_CON_SHIFT          = 8,
+       CLK_I2C3_PLL_SEL_SHIFT          = 7,
+       CLK_I2C3_DIV_CON_SHIFT          = 0,
+
+       /* CRU_SOFTRST_CON4 */
+       RESETN_DDR0_REQ_SHIFT           = 8,
+       RESETN_DDR0_REQ_MASK            = 1 << RESETN_DDR0_REQ_SHIFT,
+       RESETN_DDRPHY0_REQ_SHIFT        = 9,
+       RESETN_DDRPHY0_REQ_MASK         = 1 << RESETN_DDRPHY0_REQ_SHIFT,
+       RESETN_DDR1_REQ_SHIFT           = 12,
+       RESETN_DDR1_REQ_MASK            = 1 << RESETN_DDR1_REQ_SHIFT,
+       RESETN_DDRPHY1_REQ_SHIFT        = 13,
+       RESETN_DDRPHY1_REQ_MASK         = 1 << RESETN_DDRPHY1_REQ_SHIFT,
+};
+
+#define VCO_MAX_KHZ    (3200 * (MHz / KHz))
+#define VCO_MIN_KHZ    (800 * (MHz / KHz))
+#define OUTPUT_MAX_KHZ (3200 * (MHz / KHz))
+#define OUTPUT_MIN_KHZ (16 * (MHz / KHz))
+
+/*
+ *  the div restructions of pll in integer mode, these are defined in
+ *  * CRU_*PLL_CON0 or PMUCRU_*PLL_CON0
+ */
+#define PLL_DIV_MIN    16
+#define PLL_DIV_MAX    3200
+
+/*
+ * How to calculate the PLL(from TRM V0.3 Part 1 Page 63):
+ * Formulas also embedded within the Fractional PLL Verilog model:
+ * If DSMPD = 1 (DSM is disabled, "integer mode")
+ * FOUTVCO = FREF / REFDIV * FBDIV
+ * FOUTPOSTDIV = FOUTVCO / POSTDIV1 / POSTDIV2
+ * Where:
+ * FOUTVCO = Fractional PLL non-divided output frequency
+ * FOUTPOSTDIV = Fractional PLL divided output frequency
+ *               (output of second post divider)
+ * FREF = Fractional PLL input reference frequency, (the OSC_HZ 24MHz input)
+ * REFDIV = Fractional PLL input reference clock divider
+ * FBDIV = Integer value programmed into feedback divide
+ *
+ */
+static void rkclk_set_pll(u32 *pll_con, const struct pll_div *div)
+{
+       /* All 8 PLLs have same VCO and output frequency range restrictions. */
+       u32 vco_khz = OSC_HZ / 1000 * div->fbdiv / div->refdiv;
+       u32 output_khz = vco_khz / div->postdiv1 / div->postdiv2;
+
+       debug("PLL at %p: fbdiv=%d, refdiv=%d, postdiv1=%d, "
+                          "postdiv2=%d, vco=%u khz, output=%u khz\n",
+                          pll_con, div->fbdiv, div->refdiv, div->postdiv1,
+                          div->postdiv2, vco_khz, output_khz);
+       assert(vco_khz >= VCO_MIN_KHZ && vco_khz <= VCO_MAX_KHZ &&
+              output_khz >= OUTPUT_MIN_KHZ && output_khz <= OUTPUT_MAX_KHZ &&
+              div->fbdiv >= PLL_DIV_MIN && div->fbdiv <= PLL_DIV_MAX);
+
+       /*
+        * When power on or changing PLL setting,
+        * we must force PLL into slow mode to ensure output stable clock.
+        */
+       rk_clrsetreg(&pll_con[3], PLL_MODE_MASK,
+                    PLL_MODE_SLOW << PLL_MODE_SHIFT);
+
+       /* use integer mode */
+       rk_clrsetreg(&pll_con[3], PLL_DSMPD_MASK,
+                    PLL_INTEGER_MODE << PLL_DSMPD_SHIFT);
+
+       rk_clrsetreg(&pll_con[0], PLL_FBDIV_MASK,
+                    div->fbdiv << PLL_FBDIV_SHIFT);
+       rk_clrsetreg(&pll_con[1],
+                    PLL_POSTDIV2_MASK | PLL_POSTDIV1_MASK |
+                    PLL_REFDIV_MASK | PLL_REFDIV_SHIFT,
+                    (div->postdiv2 << PLL_POSTDIV2_SHIFT) |
+                    (div->postdiv1 << PLL_POSTDIV1_SHIFT) |
+                    (div->refdiv << PLL_REFDIV_SHIFT));
+
+       /* waiting for pll lock */
+       while (!(readl(&pll_con[2]) & (1 << PLL_LOCK_STATUS_SHIFT)))
+               udelay(1);
+
+       /* pll enter normal mode */
+       rk_clrsetreg(&pll_con[3], PLL_MODE_MASK,
+                    PLL_MODE_NORM << PLL_MODE_SHIFT);
+}
+
+static int pll_para_config(u32 freq_hz, struct pll_div *div)
+{
+       u32 ref_khz = OSC_HZ / KHz, refdiv, fbdiv = 0;
+       u32 postdiv1, postdiv2 = 1;
+       u32 fref_khz;
+       u32 diff_khz, best_diff_khz;
+       const u32 max_refdiv = 63, max_fbdiv = 3200, min_fbdiv = 16;
+       const u32 max_postdiv1 = 7, max_postdiv2 = 7;
+       u32 vco_khz;
+       u32 freq_khz = freq_hz / KHz;
+
+       if (!freq_hz) {
+               printf("%s: the frequency can't be 0 Hz\n", __func__);
+               return -1;
+       }
+
+       postdiv1 = DIV_ROUND_UP(VCO_MIN_KHZ, freq_khz);
+       if (postdiv1 > max_postdiv1) {
+               postdiv2 = DIV_ROUND_UP(postdiv1, max_postdiv1);
+               postdiv1 = DIV_ROUND_UP(postdiv1, postdiv2);
+       }
+
+       vco_khz = freq_khz * postdiv1 * postdiv2;
+
+       if (vco_khz < VCO_MIN_KHZ || vco_khz > VCO_MAX_KHZ ||
+           postdiv2 > max_postdiv2) {
+               printf("%s: Cannot find out a supported VCO"
+                      " for Frequency (%uHz).\n", __func__, freq_hz);
+               return -1;
+       }
+
+       div->postdiv1 = postdiv1;
+       div->postdiv2 = postdiv2;
+
+       best_diff_khz = vco_khz;
+       for (refdiv = 1; refdiv < max_refdiv && best_diff_khz; refdiv++) {
+               fref_khz = ref_khz / refdiv;
+
+               fbdiv = vco_khz / fref_khz;
+               if ((fbdiv >= max_fbdiv) || (fbdiv <= min_fbdiv))
+                       continue;
+               diff_khz = vco_khz - fbdiv * fref_khz;
+               if (fbdiv + 1 < max_fbdiv && diff_khz > fref_khz / 2) {
+                       fbdiv++;
+                       diff_khz = fref_khz - diff_khz;
+               }
+
+               if (diff_khz >= best_diff_khz)
+                       continue;
+
+               best_diff_khz = diff_khz;
+               div->refdiv = refdiv;
+               div->fbdiv = fbdiv;
+       }
+
+       if (best_diff_khz > 4 * (MHz/KHz)) {
+               printf("%s: Failed to match output frequency %u, "
+                      "difference is %u Hz,exceed 4MHZ\n", __func__, freq_hz,
+                      best_diff_khz * KHz);
+               return -1;
+       }
+       return 0;
+}
+
+static void rkclk_init(struct rk3399_cru *cru)
+{
+       u32 aclk_div;
+       u32 hclk_div;
+       u32 pclk_div;
+
+       /*
+        * some cru registers changed by bootrom, we'd better reset them to
+        * reset/default values described in TRM to avoid confusion in kernel.
+        * Please consider these three lines as a fix of bootrom bug.
+        */
+       rk_clrsetreg(&cru->clksel_con[12], 0xffff, 0x4101);
+       rk_clrsetreg(&cru->clksel_con[19], 0xffff, 0x033f);
+       rk_clrsetreg(&cru->clksel_con[56], 0x0003, 0x0003);
+
+       /* configure gpll cpll */
+       rkclk_set_pll(&cru->gpll_con[0], &gpll_init_cfg);
+       rkclk_set_pll(&cru->cpll_con[0], &cpll_init_cfg);
+
+       /* configure perihp aclk, hclk, pclk */
+       aclk_div = GPLL_HZ / PERIHP_ACLK_HZ - 1;
+       assert((aclk_div + 1) * PERIHP_ACLK_HZ == GPLL_HZ && aclk_div < 0x1f);
+
+       hclk_div = PERIHP_ACLK_HZ / PERIHP_HCLK_HZ - 1;
+       assert((hclk_div + 1) * PERIHP_HCLK_HZ ==
+              PERIHP_ACLK_HZ && (hclk_div < 0x4));
+
+       pclk_div = PERIHP_ACLK_HZ / PERIHP_PCLK_HZ - 1;
+       assert((pclk_div + 1) * PERIHP_PCLK_HZ ==
+              PERIHP_ACLK_HZ && (pclk_div < 0x7));
+
+       rk_clrsetreg(&cru->clksel_con[14],
+                    PCLK_PERIHP_DIV_CON_MASK | HCLK_PERIHP_DIV_CON_MASK |
+                    ACLK_PERIHP_PLL_SEL_MASK | ACLK_PERIHP_DIV_CON_MASK,
+                    pclk_div << PCLK_PERIHP_DIV_CON_SHIFT |
+                    hclk_div << HCLK_PERIHP_DIV_CON_SHIFT |
+                    ACLK_PERIHP_PLL_SEL_GPLL << ACLK_PERIHP_PLL_SEL_SHIFT |
+                    aclk_div << ACLK_PERIHP_DIV_CON_SHIFT);
+
+       /* configure perilp0 aclk, hclk, pclk */
+       aclk_div = GPLL_HZ / PERILP0_ACLK_HZ - 1;
+       assert((aclk_div + 1) * PERILP0_ACLK_HZ == GPLL_HZ && aclk_div < 0x1f);
+
+       hclk_div = PERILP0_ACLK_HZ / PERILP0_HCLK_HZ - 1;
+       assert((hclk_div + 1) * PERILP0_HCLK_HZ ==
+              PERILP0_ACLK_HZ && (hclk_div < 0x4));
+
+       pclk_div = PERILP0_ACLK_HZ / PERILP0_PCLK_HZ - 1;
+       assert((pclk_div + 1) * PERILP0_PCLK_HZ ==
+              PERILP0_ACLK_HZ && (pclk_div < 0x7));
+
+       rk_clrsetreg(&cru->clksel_con[23],
+                    PCLK_PERILP0_DIV_CON_MASK | HCLK_PERILP0_DIV_CON_MASK |
+                    ACLK_PERILP0_PLL_SEL_MASK | ACLK_PERILP0_DIV_CON_MASK,
+                    pclk_div << PCLK_PERILP0_DIV_CON_SHIFT |
+                    hclk_div << HCLK_PERILP0_DIV_CON_SHIFT |
+                    ACLK_PERILP0_PLL_SEL_GPLL << ACLK_PERILP0_PLL_SEL_SHIFT |
+                    aclk_div << ACLK_PERILP0_DIV_CON_SHIFT);
+
+       /* perilp1 hclk select gpll as source */
+       hclk_div = GPLL_HZ / PERILP1_HCLK_HZ - 1;
+       assert((hclk_div + 1) * PERILP1_HCLK_HZ ==
+              GPLL_HZ && (hclk_div < 0x1f));
+
+       pclk_div = PERILP1_HCLK_HZ / PERILP1_HCLK_HZ - 1;
+       assert((pclk_div + 1) * PERILP1_HCLK_HZ ==
+              PERILP1_HCLK_HZ && (hclk_div < 0x7));
+
+       rk_clrsetreg(&cru->clksel_con[25],
+                    PCLK_PERILP1_DIV_CON_MASK | HCLK_PERILP1_DIV_CON_MASK |
+                    HCLK_PERILP1_PLL_SEL_MASK,
+                    pclk_div << PCLK_PERILP1_DIV_CON_SHIFT |
+                    hclk_div << HCLK_PERILP1_DIV_CON_SHIFT |
+                    HCLK_PERILP1_PLL_SEL_GPLL << HCLK_PERILP1_PLL_SEL_SHIFT);
+}
+
+void rk3399_configure_cpu(struct rk3399_cru *cru,
+                         enum apll_l_frequencies apll_l_freq)
+{
+       u32 aclkm_div;
+       u32 pclk_dbg_div;
+       u32 atclk_div;
+
+       rkclk_set_pll(&cru->apll_l_con[0], apll_l_cfgs[apll_l_freq]);
+
+       aclkm_div = APLL_HZ / ACLKM_CORE_HZ - 1;
+       assert((aclkm_div + 1) * ACLKM_CORE_HZ == APLL_HZ &&
+              aclkm_div < 0x1f);
+
+       pclk_dbg_div = APLL_HZ / PCLK_DBG_HZ - 1;
+       assert((pclk_dbg_div + 1) * PCLK_DBG_HZ == APLL_HZ &&
+              pclk_dbg_div < 0x1f);
+
+       atclk_div = APLL_HZ / ATCLK_CORE_HZ - 1;
+       assert((atclk_div + 1) * ATCLK_CORE_HZ == APLL_HZ &&
+              atclk_div < 0x1f);
+
+       rk_clrsetreg(&cru->clksel_con[0],
+                    ACLKM_CORE_L_DIV_CON_MASK | CLK_CORE_L_PLL_SEL_MASK |
+                    CLK_CORE_L_DIV_MASK,
+                    aclkm_div << ACLKM_CORE_L_DIV_CON_SHIFT |
+                    CLK_CORE_L_PLL_SEL_ALPLL << CLK_CORE_L_PLL_SEL_SHIFT |
+                    0 << CLK_CORE_L_DIV_SHIFT);
+
+       rk_clrsetreg(&cru->clksel_con[1],
+                    PCLK_DBG_L_DIV_MASK | ATCLK_CORE_L_DIV_MASK,
+                    pclk_dbg_div << PCLK_DBG_L_DIV_SHIFT |
+                    atclk_div << ATCLK_CORE_L_DIV_SHIFT);
+}
+#define I2C_CLK_REG_MASK(bus) \
+                       (I2C_DIV_CON_MASK << \
+                       CLK_I2C ##bus## _DIV_CON_SHIFT | \
+                       CLK_I2C_PLL_SEL_MASK << \
+                       CLK_I2C ##bus## _PLL_SEL_SHIFT)
+
+#define I2C_CLK_REG_VALUE(bus, clk_div) \
+                             ((clk_div - 1) << \
+                                       CLK_I2C ##bus## _DIV_CON_SHIFT | \
+                             CLK_I2C_PLL_SEL_GPLL << \
+                                       CLK_I2C ##bus## _PLL_SEL_SHIFT)
+
+#define I2C_CLK_DIV_VALUE(con, bus) \
+                       (con >> CLK_I2C ##bus## _DIV_CON_SHIFT) & \
+                               I2C_DIV_CON_MASK;
+
+static ulong rk3399_i2c_get_clk(struct rk3399_cru *cru, ulong clk_id)
+{
+       u32 div, con;
+
+       switch (clk_id) {
+       case SCLK_I2C1:
+               con = readl(&cru->clksel_con[61]);
+               div = I2C_CLK_DIV_VALUE(con, 1);
+               break;
+       case SCLK_I2C2:
+               con = readl(&cru->clksel_con[62]);
+               div = I2C_CLK_DIV_VALUE(con, 2);
+               break;
+       case SCLK_I2C3:
+               con = readl(&cru->clksel_con[63]);
+               div = I2C_CLK_DIV_VALUE(con, 3);
+               break;
+       case SCLK_I2C5:
+               con = readl(&cru->clksel_con[61]);
+               div = I2C_CLK_DIV_VALUE(con, 5);
+               break;
+       case SCLK_I2C6:
+               con = readl(&cru->clksel_con[62]);
+               div = I2C_CLK_DIV_VALUE(con, 6);
+               break;
+       case SCLK_I2C7:
+               con = readl(&cru->clksel_con[63]);
+               div = I2C_CLK_DIV_VALUE(con, 7);
+               break;
+       default:
+               printf("do not support this i2c bus\n");
+               return -EINVAL;
+       }
+
+       return DIV_TO_RATE(GPLL_HZ, div);
+}
+
+static ulong rk3399_i2c_set_clk(struct rk3399_cru *cru, ulong clk_id, uint hz)
+{
+       int src_clk_div;
+
+       /* i2c0,4,8 src clock from ppll, i2c1,2,3,5,6,7 src clock from gpll*/
+       src_clk_div = GPLL_HZ / hz;
+       assert(src_clk_div - 1 < 127);
+
+       switch (clk_id) {
+       case SCLK_I2C1:
+               rk_clrsetreg(&cru->clksel_con[61], I2C_CLK_REG_MASK(1),
+                            I2C_CLK_REG_VALUE(1, src_clk_div));
+               break;
+       case SCLK_I2C2:
+               rk_clrsetreg(&cru->clksel_con[62], I2C_CLK_REG_MASK(2),
+                            I2C_CLK_REG_VALUE(2, src_clk_div));
+               break;
+       case SCLK_I2C3:
+               rk_clrsetreg(&cru->clksel_con[63], I2C_CLK_REG_MASK(3),
+                            I2C_CLK_REG_VALUE(3, src_clk_div));
+               break;
+       case SCLK_I2C5:
+               rk_clrsetreg(&cru->clksel_con[61], I2C_CLK_REG_MASK(5),
+                            I2C_CLK_REG_VALUE(5, src_clk_div));
+               break;
+       case SCLK_I2C6:
+               rk_clrsetreg(&cru->clksel_con[62], I2C_CLK_REG_MASK(6),
+                            I2C_CLK_REG_VALUE(6, src_clk_div));
+               break;
+       case SCLK_I2C7:
+               rk_clrsetreg(&cru->clksel_con[63], I2C_CLK_REG_MASK(7),
+                            I2C_CLK_REG_VALUE(7, src_clk_div));
+               break;
+       default:
+               printf("do not support this i2c bus\n");
+               return -EINVAL;
+       }
+
+       return DIV_TO_RATE(GPLL_HZ, src_clk_div);
+}
+
+static ulong rk3399_vop_set_clk(struct rk3399_cru *cru, ulong clk_id, u32 hz)
+{
+       struct pll_div vpll_config = {0};
+       int aclk_vop = 198*MHz;
+       void *aclkreg_addr, *dclkreg_addr;
+       u32 div;
+
+       switch (clk_id) {
+       case DCLK_VOP0:
+               aclkreg_addr = &cru->clksel_con[47];
+               dclkreg_addr = &cru->clksel_con[49];
+               break;
+       case DCLK_VOP1:
+               aclkreg_addr = &cru->clksel_con[48];
+               dclkreg_addr = &cru->clksel_con[50];
+               break;
+       default:
+               return -EINVAL;
+       }
+       /* vop aclk source clk: cpll */
+       div = CPLL_HZ / aclk_vop;
+       assert(div - 1 < 32);
+
+       rk_clrsetreg(aclkreg_addr,
+                    ACLK_VOP_PLL_SEL_MASK | ACLK_VOP_DIV_CON_MASK,
+                    ACLK_VOP_PLL_SEL_CPLL << ACLK_VOP_PLL_SEL_SHIFT |
+                    (div - 1) << ACLK_VOP_DIV_CON_SHIFT);
+
+       /* vop dclk source from vpll, and equals to vpll(means div == 1) */
+       if (pll_para_config(hz, &vpll_config))
+               return -1;
+
+       rkclk_set_pll(&cru->vpll_con[0], &vpll_config);
+
+       rk_clrsetreg(dclkreg_addr,
+                    DCLK_VOP_DCLK_SEL_MASK | DCLK_VOP_PLL_SEL_MASK|
+                    DCLK_VOP_DIV_CON_MASK,
+                    DCLK_VOP_DCLK_SEL_DIVOUT << DCLK_VOP_DCLK_SEL_SHIFT |
+                    DCLK_VOP_PLL_SEL_VPLL << DCLK_VOP_PLL_SEL_SHIFT |
+                    (1 - 1) << DCLK_VOP_DIV_CON_SHIFT);
+
+       return hz;
+}
+
+static ulong rk3399_mmc_get_clk(struct rk3399_cru *cru, uint clk_id)
+{
+       u32 div, con;
+
+       switch (clk_id) {
+       case SCLK_SDMMC:
+               con = readl(&cru->clksel_con[16]);
+               break;
+       case SCLK_EMMC:
+               con = readl(&cru->clksel_con[21]);
+               break;
+       default:
+               return -EINVAL;
+       }
+       div = (con>>CLK_EMMC_DIV_CON_SHIFT) & CLK_EMMC_DIV_CON_MASK;
+
+       return DIV_TO_RATE(GPLL_HZ, div);
+}
+
+static ulong rk3399_mmc_set_clk(struct rk3399_cru *cru,
+                               ulong clk_id, ulong set_rate)
+{
+       int src_clk_div;
+       int aclk_emmc = 198*MHz;
+
+       switch (clk_id) {
+       case SCLK_SDMMC:
+               /* Select clk_sdmmc source from GPLL too */
+               src_clk_div = GPLL_HZ / set_rate;
+               assert(src_clk_div - 1 < 127);
+
+               rk_clrsetreg(&cru->clksel_con[16],
+                            CLK_EMMC_PLL_MASK | CLK_EMMC_DIV_CON_MASK,
+                            CLK_EMMC_PLL_SEL_GPLL << CLK_EMMC_PLL_SHIFT |
+                            (src_clk_div - 1) << CLK_EMMC_DIV_CON_SHIFT);
+               break;
+       case SCLK_EMMC:
+               /* Select aclk_emmc source from GPLL */
+               src_clk_div = GPLL_HZ / aclk_emmc;
+               assert(src_clk_div - 1 < 31);
+
+               rk_clrsetreg(&cru->clksel_con[21],
+                            ACLK_EMMC_PLL_SEL_MASK | ACLK_EMMC_DIV_CON_MASK,
+                            ACLK_EMMC_PLL_SEL_GPLL << ACLK_EMMC_PLL_SEL_SHIFT |
+                            (src_clk_div - 1) << ACLK_EMMC_DIV_CON_SHIFT);
+
+               /* Select clk_emmc source from GPLL too */
+               src_clk_div = GPLL_HZ / set_rate;
+               assert(src_clk_div - 1 < 127);
+
+               rk_clrsetreg(&cru->clksel_con[22],
+                            CLK_EMMC_PLL_MASK | CLK_EMMC_DIV_CON_MASK,
+                            CLK_EMMC_PLL_SEL_GPLL << CLK_EMMC_PLL_SHIFT |
+                            (src_clk_div - 1) << CLK_EMMC_DIV_CON_SHIFT);
+               break;
+       default:
+               return -EINVAL;
+       }
+       return rk3399_mmc_get_clk(cru, clk_id);
+}
+
+static ulong rk3399_clk_get_rate(struct clk *clk)
+{
+       struct rk3399_clk_priv *priv = dev_get_priv(clk->dev);
+       ulong rate = 0;
+
+       switch (clk->id) {
+       case 0 ... 63:
+               return 0;
+       case SCLK_SDMMC:
+       case SCLK_EMMC:
+               rate = rk3399_mmc_get_clk(priv->cru, clk->id);
+               break;
+       case SCLK_I2C1:
+       case SCLK_I2C2:
+       case SCLK_I2C3:
+       case SCLK_I2C5:
+       case SCLK_I2C6:
+       case SCLK_I2C7:
+               rate = rk3399_i2c_get_clk(priv->cru, clk->id);
+               break;
+       case DCLK_VOP0:
+       case DCLK_VOP1:
+               break;
+       default:
+               return -ENOENT;
+       }
+
+       return rate;
+}
+
+static ulong rk3399_clk_set_rate(struct clk *clk, ulong rate)
+{
+       struct rk3399_clk_priv *priv = dev_get_priv(clk->dev);
+       ulong ret = 0;
+
+       switch (clk->id) {
+       case 0 ... 63:
+               return 0;
+       case SCLK_SDMMC:
+       case SCLK_EMMC:
+               ret = rk3399_mmc_set_clk(priv->cru, clk->id, rate);
+               break;
+       case SCLK_I2C1:
+       case SCLK_I2C2:
+       case SCLK_I2C3:
+       case SCLK_I2C5:
+       case SCLK_I2C6:
+       case SCLK_I2C7:
+               ret = rk3399_i2c_set_clk(priv->cru, clk->id, rate);
+               break;
+       case DCLK_VOP0:
+       case DCLK_VOP1:
+               rate = rk3399_vop_set_clk(priv->cru, clk->id, rate);
+               break;
+       default:
+               return -ENOENT;
+       }
+
+       return ret;
+}
+
+static struct clk_ops rk3399_clk_ops = {
+       .get_rate = rk3399_clk_get_rate,
+       .set_rate = rk3399_clk_set_rate,
+};
+
+void *rockchip_get_cru(void)
+{
+       struct udevice *dev;
+       fdt_addr_t *addr;
+       int ret;
+
+       ret = uclass_get_device_by_name(UCLASS_CLK, "clk_rk3399", &dev);
+       if (ret)
+               return ERR_PTR(ret);
+
+       addr = dev_get_addr_ptr(dev);
+       if ((fdt_addr_t)addr == FDT_ADDR_T_NONE)
+               return ERR_PTR(-EINVAL);
+
+       return addr;
+}
+
+static int rk3399_clk_probe(struct udevice *dev)
+{
+       struct rk3399_clk_priv *priv = dev_get_priv(dev);
+
+       rkclk_init(priv->cru);
+
+       return 0;
+}
+
+static int rk3399_clk_ofdata_to_platdata(struct udevice *dev)
+{
+       struct rk3399_clk_priv *priv = dev_get_priv(dev);
+
+       priv->cru = (struct rk3399_cru *)dev_get_addr(dev);
+
+       return 0;
+}
+
+static int rk3399_clk_bind(struct udevice *dev)
+{
+       int ret;
+
+       /* The reset driver does not have a device node, so bind it here */
+       ret = device_bind_driver(gd->dm_root, "rk3399_sysreset", "reset", &dev);
+       if (ret)
+               printf("Warning: No RK3399 reset driver: ret=%d\n", ret);
+
+       return 0;
+}
+
+static const struct udevice_id rk3399_clk_ids[] = {
+       { .compatible = "rockchip,rk3399-cru" },
+       { }
+};
+
+U_BOOT_DRIVER(clk_rk3399) = {
+       .name           = "clk_rk3399",
+       .id             = UCLASS_CLK,
+       .of_match       = rk3399_clk_ids,
+       .priv_auto_alloc_size = sizeof(struct rk3399_clk_priv),
+       .ofdata_to_platdata = rk3399_clk_ofdata_to_platdata,
+       .ops            = &rk3399_clk_ops,
+       .bind           = rk3399_clk_bind,
+       .probe          = rk3399_clk_probe,
+};