arm: rockchip: Add RK3308 SOC support

RK3308 is a quad Cortex A35 based SOC with rich audio
interfaces(I2S/PCM/TDM/PDM/SPDIF/VAD/HDMI ARC), which
designed for intelligent voice interaction and audio
input/output processing.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>

11 files changed, 783 insertions, 0 deletions

diff --git a/arch/arm/include/asm/arch-rk3308/boot0.h b/arch/arm/include/asm/arch-rk3308/boot0.h
new file mode 100644
index 00000000000..2e78b074ade
--- /dev/null
+++ b/arch/arm/include/asm/arch-rk3308/boot0.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * (C) Copyright 2019 Rockchip Electronics Co., Ltd
+ */
+
+#ifndef __ASM_ARCH_BOOT0_H__
+#define __ASM_ARCH_BOOT0_H__
+
+#include <asm/arch-rockchip/boot0.h>
+
+#endif
diff --git a/arch/arm/include/asm/arch-rk3308/cru_rk3308.h b/arch/arm/include/asm/arch-rk3308/cru_rk3308.h
new file mode 100644
index 00000000000..a14b64cdb3e
--- /dev/null
+++ b/arch/arm/include/asm/arch-rk3308/cru_rk3308.h
@@ -0,0 +1,290 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * (C) Copyright 2018 Rockchip Electronics Co., Ltd.
+ */
+#ifndef _ASM_ARCH_CRU_RK3308_H
+#define _ASM_ARCH_CRU_RK3308_H
+
+#include <common.h>
+
+#define MHz		1000000
+#define OSC_HZ		(24 * MHz)
+
+#define APLL_HZ		(816 * MHz)
+
+#define CORE_ACLK_HZ	408000000
+#define CORE_DBG_HZ	204000000
+
+#define BUS_ACLK_HZ	200000000
+#define BUS_HCLK_HZ	100000000
+#define BUS_PCLK_HZ	100000000
+
+#define PERI_ACLK_HZ	200000000
+#define PERI_HCLK_HZ	100000000
+#define PERI_PCLK_HZ	100000000
+
+#define AUDIO_HCLK_HZ	100000000
+#define AUDIO_PCLK_HZ	100000000
+
+#define RK3308_PLL_CON(x)	((x) * 0x4)
+#define RK3308_MODE_CON		0xa0
+
+/* RK3308 pll id */
+enum rk3308_pll_id {
+	APLL,
+	DPLL,
+	VPLL0,
+	VPLL1,
+	PLL_COUNT,
+};
+
+struct rk3308_clk_info {
+	unsigned long id;
+	char *name;
+};
+
+/* Private data for the clock driver - used by rockchip_get_cru() */
+struct rk3308_clk_priv {
+	struct rk3308_cru *cru;
+	ulong armclk_hz;
+	ulong dpll_hz;
+	ulong vpll0_hz;
+	ulong vpll1_hz;
+};
+
+struct rk3308_cru {
+	struct rk3308_pll {
+		unsigned int con0;
+		unsigned int con1;
+		unsigned int con2;
+		unsigned int con3;
+		unsigned int con4;
+		unsigned int reserved0[3];
+	} pll[4];
+	unsigned int reserved1[8];
+	unsigned int mode;
+	unsigned int misc;
+	unsigned int reserved2[2];
+	unsigned int glb_cnt_th;
+	unsigned int glb_rst_st;
+	unsigned int glb_srst_fst;
+	unsigned int glb_srst_snd;
+	unsigned int glb_rst_con;
+	unsigned int pll_lock;
+	unsigned int reserved3[6];
+	unsigned int hwffc_con0;
+	unsigned int reserved4;
+	unsigned int hwffc_th;
+	unsigned int hwffc_intst;
+	unsigned int apll_con0_s;
+	unsigned int apll_con1_s;
+	unsigned int clksel_con0_s;
+	unsigned int reserved5;
+	unsigned int clksel_con[74];
+	unsigned int reserved6[54];
+	unsigned int clkgate_con[15];
+	unsigned int reserved7[(0x380 - 0x338) / 4 - 1];
+	unsigned int ssgtbl[32];
+	unsigned int softrst_con[10];
+	unsigned int reserved8[(0x480 - 0x424) / 4 - 1];
+	unsigned int sdmmc_con[2];
+	unsigned int sdio_con[2];
+	unsigned int emmc_con[2];
+};
+
+enum {
+	/* PLLCON0*/
+	PLL_BP_SHIFT		= 15,
+	PLL_POSTDIV1_SHIFT	= 12,
+	PLL_POSTDIV1_MASK	= 7 << PLL_POSTDIV1_SHIFT,
+	PLL_FBDIV_SHIFT		= 0,
+	PLL_FBDIV_MASK		= 0xfff,
+
+	/* PLLCON1 */
+	PLL_PDSEL_SHIFT		= 15,
+	PLL_PD1_SHIFT		= 14,
+	PLL_PD_SHIFT		= 13,
+	PLL_PD_MASK		= 1 << PLL_PD_SHIFT,
+	PLL_DSMPD_SHIFT		= 12,
+	PLL_DSMPD_MASK		= 1 << PLL_DSMPD_SHIFT,
+	PLL_LOCK_STATUS_SHIFT	= 10,
+	PLL_LOCK_STATUS_MASK	= 1 << PLL_LOCK_STATUS_SHIFT,
+	PLL_POSTDIV2_SHIFT	= 6,
+	PLL_POSTDIV2_MASK	= 7 << PLL_POSTDIV2_SHIFT,
+	PLL_REFDIV_SHIFT	= 0,
+	PLL_REFDIV_MASK		= 0x3f,
+
+	/* PLLCON2 */
+	PLL_FOUT4PHASEPD_SHIFT	= 27,
+	PLL_FOUTVCOPD_SHIFT	= 26,
+	PLL_FOUTPOSTDIVPD_SHIFT	= 25,
+	PLL_DACPD_SHIFT		= 24,
+	PLL_FRAC_DIV	= 0xffffff,
+
+	/* CRU_MODE */
+	PLLMUX_FROM_XIN24M	= 0,
+	PLLMUX_FROM_PLL,
+	PLLMUX_FROM_RTC32K,
+	USBPHY480M_MODE_SHIFT	= 8,
+	USBPHY480M_MODE_MASK	= 3 << USBPHY480M_MODE_SHIFT,
+	VPLL1_MODE_SHIFT		= 6,
+	VPLL1_MODE_MASK		= 3 << VPLL1_MODE_SHIFT,
+	VPLL0_MODE_SHIFT		= 4,
+	VPLL0_MODE_MASK		= 3 << VPLL0_MODE_SHIFT,
+	DPLL_MODE_SHIFT		= 2,
+	DPLL_MODE_MASK		= 3 << DPLL_MODE_SHIFT,
+	APLL_MODE_SHIFT		= 0,
+	APLL_MODE_MASK		= 3 << APLL_MODE_SHIFT,
+
+	/* CRU_CLK_SEL0_CON */
+	CORE_ACLK_DIV_SHIFT	= 12,
+	CORE_ACLK_DIV_MASK	= 0x7 << CORE_ACLK_DIV_SHIFT,
+	CORE_DBG_DIV_SHIFT	= 8,
+	CORE_DBG_DIV_MASK	= 0xf << CORE_DBG_DIV_SHIFT,
+	CORE_CLK_PLL_SEL_SHIFT	= 6,
+	CORE_CLK_PLL_SEL_MASK	= 0x3 << CORE_CLK_PLL_SEL_SHIFT,
+	CORE_CLK_PLL_SEL_APLL	= 0,
+	CORE_CLK_PLL_SEL_VPLL0,
+	CORE_CLK_PLL_SEL_VPLL1,
+	CORE_DIV_CON_SHIFT	= 0,
+	CORE_DIV_CON_MASK	= 0x0f << CORE_DIV_CON_SHIFT,
+
+	/* CRU_CLK_SEL5_CON */
+	BUS_PLL_SEL_SHIFT	= 6,
+	BUS_PLL_SEL_MASK	= 0x3 << BUS_PLL_SEL_SHIFT,
+	BUS_PLL_SEL_DPLL	= 0,
+	BUS_PLL_SEL_VPLL0,
+	BUS_PLL_SEL_VPLL1,
+	BUS_ACLK_DIV_SHIFT	= 0,
+	BUS_ACLK_DIV_MASK	= 0x1f << BUS_ACLK_DIV_SHIFT,
+
+	/* CRU_CLK_SEL6_CON */
+	BUS_PCLK_DIV_SHIFT	= 8,
+	BUS_PCLK_DIV_MASK	= 0x1f << BUS_PCLK_DIV_SHIFT,
+	BUS_HCLK_DIV_SHIFT	= 0,
+	BUS_HCLK_DIV_MASK	= 0x1f << BUS_HCLK_DIV_SHIFT,
+
+	/* CRU_CLK_SEL7_CON */
+	CRYPTO_APK_SEL_SHIFT	= 14,
+	CRYPTO_APK_PLL_SEL_MASK	= 3 << CRYPTO_APK_SEL_SHIFT,
+	CRYPTO_PLL_SEL_DPLL	= 0,
+	CRYPTO_PLL_SEL_VPLL0,
+	CRYPTO_PLL_SEL_VPLL1	= 0,
+	CRYPTO_APK_DIV_SHIFT	= 8,
+	CRYPTO_APK_DIV_MASK	= 0x1f << CRYPTO_APK_DIV_SHIFT,
+	CRYPTO_PLL_SEL_SHIFT	= 6,
+	CRYPTO_PLL_SEL_MASK	= 3 << CRYPTO_PLL_SEL_SHIFT,
+	CRYPTO_DIV_SHIFT	= 0,
+	CRYPTO_DIV_MASK		= 0x1f << CRYPTO_DIV_SHIFT,
+
+	/* CRU_CLK_SEL8_CON */
+	DCLK_VOP_SEL_SHIFT	= 14,
+	DCLK_VOP_SEL_MASK	= 0x3 << DCLK_VOP_SEL_SHIFT,
+	DCLK_VOP_SEL_DIVOUT	= 0,
+	DCLK_VOP_SEL_FRACOUT,
+	DCLK_VOP_SEL_24M,
+	DCLK_VOP_PLL_SEL_SHIFT	= 10,
+	DCLK_VOP_PLL_SEL_MASK	= 0x3 << DCLK_VOP_PLL_SEL_SHIFT,
+	DCLK_VOP_PLL_SEL_DPLL	= 0,
+	DCLK_VOP_PLL_SEL_VPLL0,
+	DCLK_VOP_PLL_SEL_VPLL1,
+	DCLK_VOP_DIV_SHIFT	= 0,
+	DCLK_VOP_DIV_MASK	= 0xff,
+
+	/* CRU_CLK_SEL25_CON */
+	/* CRU_CLK_SEL26_CON */
+	/* CRU_CLK_SEL27_CON */
+	/* CRU_CLK_SEL28_CON */
+	CLK_I2C_PLL_SEL_SHIFT		= 14,
+	CLK_I2C_PLL_SEL_MASK		= 0x3 << CLK_I2C_PLL_SEL_SHIFT,
+	CLK_I2C_PLL_SEL_DPLL		= 0,
+	CLK_I2C_PLL_SEL_VPLL0,
+	CLK_I2C_PLL_SEL_24M,
+	CLK_I2C_DIV_CON_SHIFT		= 0,
+	CLK_I2C_DIV_CON_MASK		= 0x7f << CLK_I2C_DIV_CON_SHIFT,
+
+	/* CRU_CLK_SEL29_CON */
+	CLK_PWM_PLL_SEL_SHIFT		= 14,
+	CLK_PWM_PLL_SEL_MASK		= 0x3 << CLK_PWM_PLL_SEL_SHIFT,
+	CLK_PWM_PLL_SEL_DPLL		= 0,
+	CLK_PWM_PLL_SEL_VPLL0,
+	CLK_PWM_PLL_SEL_24M,
+	CLK_PWM_DIV_CON_SHIFT		= 0,
+	CLK_PWM_DIV_CON_MASK		= 0x7f << CLK_PWM_DIV_CON_SHIFT,
+
+	/* CRU_CLK_SEL30_CON */
+	/* CRU_CLK_SEL31_CON */
+	/* CRU_CLK_SEL32_CON */
+	CLK_SPI_PLL_SEL_SHIFT		= 14,
+	CLK_SPI_PLL_SEL_MASK		= 0x3 << CLK_SPI_PLL_SEL_SHIFT,
+	CLK_SPI_PLL_SEL_DPLL		= 0,
+	CLK_SPI_PLL_SEL_VPLL0,
+	CLK_SPI_PLL_SEL_24M,
+	CLK_SPI_DIV_CON_SHIFT		= 0,
+	CLK_SPI_DIV_CON_MASK		= 0x7f << CLK_SPI_DIV_CON_SHIFT,
+
+	/* CRU_CLK_SEL34_CON */
+	CLK_SARADC_DIV_CON_SHIFT	= 0,
+	CLK_SARADC_DIV_CON_MASK		= 0x7ff << CLK_SARADC_DIV_CON_SHIFT,
+
+	/* CRU_CLK_SEL36_CON */
+	PERI_PLL_SEL_SHIFT	= 6,
+	PERI_PLL_SEL_MASK	= 0x3 << PERI_PLL_SEL_SHIFT,
+	PERI_PLL_DPLL		= 0,
+	PERI_PLL_VPLL0,
+	PERI_PLL_VPLL1,
+	PERI_ACLK_DIV_SHIFT	= 0,
+	PERI_ACLK_DIV_MASK	= 0x1f << PERI_ACLK_DIV_SHIFT,
+
+	/* CRU_CLK_SEL37_CON */
+	PERI_PCLK_DIV_SHIFT	= 8,
+	PERI_PCLK_DIV_MASK	= 0x1f << PERI_PCLK_DIV_SHIFT,
+	PERI_HCLK_DIV_SHIFT	= 0,
+	PERI_HCLK_DIV_MASK	= 0x1f << PERI_HCLK_DIV_SHIFT,
+
+	/* CRU_CLKSEL41_CON */
+	EMMC_CLK_SEL_SHIFT	= 15,
+	EMMC_CLK_SEL_MASK	= 1 << EMMC_CLK_SEL_SHIFT,
+	EMMC_CLK_SEL_EMMC	= 0,
+	EMMC_CLK_SEL_EMMC_DIV50,
+	EMMC_PLL_SHIFT		= 8,
+	EMMC_PLL_MASK		= 0x3 << EMMC_PLL_SHIFT,
+	EMMC_SEL_DPLL		= 0,
+	EMMC_SEL_VPLL0,
+	EMMC_SEL_VPLL1,
+	EMMC_SEL_24M,
+	EMMC_DIV_SHIFT		= 0,
+	EMMC_DIV_MASK		= 0xff << EMMC_DIV_SHIFT,
+
+	/* CRU_CLKSEL43_CON */
+	MAC_CLK_SPEED_SEL_SHIFT = 15,
+	MAC_CLK_SPEED_SEL_MASK = 1 << MAC_CLK_SPEED_SEL_SHIFT,
+	MAC_CLK_SPEED_SEL_10M = 0,
+	MAC_CLK_SPEED_SEL_100M,
+	MAC_CLK_SOURCE_SEL_SHIFT = 14,
+	MAC_CLK_SOURCE_SEL_MASK = 1 << MAC_CLK_SOURCE_SEL_SHIFT,
+	MAC_CLK_SOURCE_SEL_INTERNAL	= 0,
+	MAC_CLK_SOURCE_SEL_EXTERNAL,
+	MAC_PLL_SHIFT		= 6,
+	MAC_PLL_MASK		= 0x3 << MAC_PLL_SHIFT,
+	MAC_SEL_DPLL		= 0,
+	MAC_SEL_VPLL0,
+	MAC_SEL_VPLL1,
+	MAC_DIV_SHIFT		= 0,
+	MAC_DIV_MASK		= 0x1f << MAC_DIV_SHIFT,
+
+	/* CRU_CLK_SEL45_CON */
+	AUDIO_PCLK_DIV_SHIFT	= 8,
+	AUDIO_PCLK_DIV_MASK	= 0x1f << AUDIO_PCLK_DIV_SHIFT,
+	AUDIO_PLL_SEL_SHIFT	= 6,
+	AUDIO_PLL_SEL_MASK	= 0x3 << AUDIO_PLL_SEL_SHIFT,
+	AUDIO_PLL_VPLL0		= 0,
+	AUDIO_PLL_VPLL1,
+	AUDIO_PLL_24M,
+	AUDIO_HCLK_DIV_SHIFT	= 0,
+	AUDIO_HCLK_DIV_MASK	= 0x1f << AUDIO_HCLK_DIV_SHIFT,
+};
+
+check_member(rk3308_cru, emmc_con[1], 0x494);
+
+#endif
diff --git a/arch/arm/include/asm/arch-rk3308/gpio.h b/arch/arm/include/asm/arch-rk3308/gpio.h
new file mode 100644
index 00000000000..eca79d51594
--- /dev/null
+++ b/arch/arm/include/asm/arch-rk3308/gpio.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * (C) Copyright 2019 Rockchip Electronics Co., Ltd
+ */
+
+#ifndef __ASM_ARCH_GPIO_H__
+#define __ASM_ARCH_GPIO_H__
+
+#include <asm/arch-rockchip/gpio.h>
+
+#endif
diff --git a/arch/arm/include/asm/arch-rk3308/grf_rk3308.h b/arch/arm/include/asm/arch-rk3308/grf_rk3308.h
new file mode 100644
index 00000000000..3e68626d3e9
--- /dev/null
+++ b/arch/arm/include/asm/arch-rk3308/grf_rk3308.h
@@ -0,0 +1,197 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ *Copyright 2019 Rockchip Electronics Co., Ltd.
+ */
+#ifndef _ASM_ARCH_GRF_rk3308_H
+#define _ASM_ARCH_GRF_rk3308_H
+
+#include <common.h>
+
+struct rk3308_grf {
+	unsigned int gpio0a_iomux;
+	unsigned int reserved0;
+	unsigned int gpio0b_iomux;
+	unsigned int reserved1;
+	unsigned int gpio0c_iomux;
+	unsigned int reserved2[3];
+	unsigned int gpio1a_iomux;
+	unsigned int reserved3;
+	unsigned int gpio1bl_iomux;
+	unsigned int gpio1bh_iomux;
+	unsigned int gpio1cl_iomux;
+	unsigned int gpio1ch_iomux;
+	unsigned int gpio1d_iomux;
+	unsigned int reserved4;
+	unsigned int gpio2a_iomux;
+	unsigned int reserved5;
+	unsigned int gpio2b_iomux;
+	unsigned int reserved6;
+	unsigned int gpio2c_iomux;
+	unsigned int reserved7[3];
+	unsigned int gpio3a_iomux;
+	unsigned int reserved8;
+	unsigned int gpio3b_iomux;
+	unsigned int reserved9[5];
+	unsigned int gpio4a_iomux;
+	unsigned int reserved33;
+	unsigned int gpio4b_iomux;
+	unsigned int reserved10;
+	unsigned int gpio4c_iomux;
+	unsigned int reserved11;
+	unsigned int gpio4d_iomux;
+	unsigned int reserved34;
+	unsigned int gpio0a_p;
+	unsigned int gpio0b_p;
+	unsigned int gpio0c_p;
+	unsigned int reserved12;
+	unsigned int gpio1a_p;
+	unsigned int gpio1b_p;
+	unsigned int gpio1c_p;
+	unsigned int gpio1d_p;
+	unsigned int gpio2a_p;
+	unsigned int gpio2b_p;
+	unsigned int gpio2c_p;
+	unsigned int reserved13;
+	unsigned int gpio3a_p;
+	unsigned int gpio3b_p;
+	unsigned int reserved14[2];
+	unsigned int gpio4a_p;
+	unsigned int gpio4b_p;
+	unsigned int gpio4c_p;
+	unsigned int gpio4d_p;
+	unsigned int reserved15[(0x100 - 0xec) / 4 - 1];
+	unsigned int gpio0a_e;
+	unsigned int gpio0b_e;
+	unsigned int gpio0c_e;
+	unsigned int reserved16;
+	unsigned int gpio1a_e;
+	unsigned int gpio1b_e;
+	unsigned int gpio1c_e;
+	unsigned int gpio1d_e;
+	unsigned int gpio2a_e;
+	unsigned int gpio2b_e;
+	unsigned int gpio2c_e;
+	unsigned int reserved17;
+	unsigned int gpio3a_e;
+	unsigned int gpio3b_e;
+	unsigned int reserved18[2];
+	unsigned int gpio4a_e;
+	unsigned int gpio4b_e;
+	unsigned int gpio4c_e;
+	unsigned int gpio4d_e;
+	unsigned int gpio0a_sr;
+	unsigned int gpio0b_sr;
+	unsigned int gpio0c_sr;
+	unsigned int reserved19;
+	unsigned int gpio1a_sr;
+	unsigned int gpio1b_sr;
+	unsigned int gpio1c_sr;
+	unsigned int gpio1d_sr;
+	unsigned int gpio2a_sr;
+	unsigned int gpio2b_sr;
+	unsigned int gpio2c_sr;
+	unsigned int reserved20;
+	unsigned int gpio3a_sr;
+	unsigned int gpio3b_sr;
+	unsigned int reserved21[2];
+	unsigned int gpio4a_sr;
+	unsigned int gpio4b_sr;
+	unsigned int gpio4c_sr;
+	unsigned int gpio4d_sr;
+	unsigned int gpio0a_smt;
+	unsigned int gpio0b_smt;
+	unsigned int gpio0c_smt;
+	unsigned int reserved22;
+	unsigned int gpio1a_smt;
+	unsigned int gpio1b_smt;
+	unsigned int gpio1c_smt;
+	unsigned int gpio1d_smt;
+	unsigned int gpio2a_smt;
+	unsigned int gpio2b_smt;
+	unsigned int gpio2c_smt;
+	unsigned int reserved23;
+	unsigned int gpio3a_smt;
+	unsigned int gpio3b_smt;
+	unsigned int reserved35[2];
+	unsigned int gpio4a_smt;
+	unsigned int gpio4b_smt;
+	unsigned int gpio4c_smt;
+	unsigned int gpio4d_smt;
+	unsigned int reserved24[(0x300 - 0x1EC) / 4 - 1];
+	unsigned int soc_con0;
+	unsigned int soc_con1;
+	unsigned int soc_con2;
+	unsigned int soc_con3;
+	unsigned int soc_con4;
+	unsigned int soc_con5;
+	unsigned int soc_con6;
+	unsigned int soc_con7;
+	unsigned int soc_con8;
+	unsigned int soc_con9;
+	unsigned int soc_con10;
+	unsigned int reserved25[(0x380 - 0x328) / 4 - 1];
+	unsigned int soc_status0;
+	unsigned int reserved26[(0x400 - 0x380) / 4 - 1];
+	unsigned int cpu_con0;
+	unsigned int cpu_con1;
+	unsigned int cpu_con2;
+	unsigned int reserved27[(0x420 - 0x408) / 4 - 1];
+	unsigned int cpu_status0;
+	unsigned int cpu_status1;
+	unsigned int reserved28[(0x440 - 0x424) / 4 - 1];
+	unsigned int pvtm_con0;
+	unsigned int pvtm_con1;
+	unsigned int pvtm_status0;
+	unsigned int pvtm_status1;
+	unsigned int reserved29[(0x460 - 0x44C) / 4 - 1];
+	unsigned int tsadc_tbl;
+	unsigned int tsadc_tbh;
+	unsigned int reserved30[(0x480 - 0x464) / 4 - 1];
+	unsigned int host0_con0;
+	unsigned int host0_con1;
+	unsigned int otg_con0;
+	unsigned int host0_status0;
+	unsigned int reserved31[(0x4a0 - 0x48C) / 4 - 1];
+	unsigned int mac_con0;
+	unsigned int upctrl_con0;
+	unsigned int upctrl_status0;
+	unsigned int reserved32[(0x500 - 0x4A8) / 4 - 1];
+	unsigned int os_reg0;
+	unsigned int os_reg1;
+	unsigned int os_reg2;
+	unsigned int os_reg3;
+	unsigned int os_reg4;
+	unsigned int os_reg5;
+	unsigned int os_reg6;
+	unsigned int os_reg7;
+	unsigned int os_reg8;
+	unsigned int os_reg9;
+	unsigned int os_reg10;
+	unsigned int os_reg11;
+	unsigned int reserved38[(0x600 - 0x52c) / 4 - 1];
+	unsigned int soc_con12;
+	unsigned int reserved39;
+	unsigned int soc_con13;
+	unsigned int soc_con14;
+	unsigned int soc_con15;
+	unsigned int reserved40[(0x800 - 0x610) / 4 - 1];
+	unsigned int chip_id;
+};
+check_member(rk3308_grf, gpio0a_p, 0xa0);
+
+struct rk3308_sgrf {
+	unsigned int soc_con0;
+	unsigned int soc_con1;
+	unsigned int con_tzma_r0size;
+	unsigned int con_secure0;
+	unsigned int reserved0;
+	unsigned int clk_timer_en;
+	unsigned int clkgat_con;
+	unsigned int fastboot_addr;
+	unsigned int fastboot_en;
+	unsigned int reserved1[(0x30 - 0x24) / 4];
+	unsigned int srst_con;
+};
+check_member(rk3308_sgrf, fastboot_en, 0x20);
+
+#endif
diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
index 3cb934a3f33..493699472c7 100644
--- a/arch/arm/mach-rockchip/Kconfig
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -127,6 +127,29 @@ config ROCKCHIP_RK3288
 	  and video codec support. Peripherals include Gigabit Ethernet,
 	  USB2 host and OTG, SDIO, I2S, UARTs, SPI, I2C and PWMs.
 
+config ROCKCHIP_RK3308
+	bool "Support Rockchip RK3308"
+	select ARM64
+	select DEBUG_UART_BOARD_INIT
+	select SUPPORT_SPL
+	select SUPPORT_TPL
+	select SPL
+	select SPL_ATF
+	select SPL_ATF_NO_PLATFORM_PARAM
+	select SPL_LOAD_FIT
+	imply ROCKCHIP_COMMON_BOARD
+	imply SPL_ROCKCHIP_COMMON_BOARD
+	imply SPL_CLK
+	imply SPL_REGMAP
+	imply SPL_SYSCON
+	imply SPL_RAM
+	imply SPL_SERIAL_SUPPORT
+	imply TPL_SERIAL_SUPPORT
+	imply SPL_SEPARATE_BSS
+	help
+	  The Rockchip RK3308 is a ARM-based Soc which embedded with quad
+	  Cortex-A35 and highly integrated audio interfaces.
+
 config ROCKCHIP_RK3328
 	bool "Support Rockchip RK3328"
 	select ARM64
@@ -345,6 +368,7 @@ source "arch/arm/mach-rockchip/rk3128/Kconfig"
 source "arch/arm/mach-rockchip/rk3188/Kconfig"
 source "arch/arm/mach-rockchip/rk322x/Kconfig"
 source "arch/arm/mach-rockchip/rk3288/Kconfig"
+source "arch/arm/mach-rockchip/rk3308/Kconfig"
 source "arch/arm/mach-rockchip/rk3328/Kconfig"
 source "arch/arm/mach-rockchip/rk3368/Kconfig"
 source "arch/arm/mach-rockchip/rk3399/Kconfig"
diff --git a/arch/arm/mach-rockchip/Makefile b/arch/arm/mach-rockchip/Makefile
index 3b58158ff9d..a728acda24a 100644
--- a/arch/arm/mach-rockchip/Makefile
+++ b/arch/arm/mach-rockchip/Makefile
@@ -34,6 +34,7 @@ obj-$(CONFIG_ROCKCHIP_RK3128) += rk3128/
 obj-$(CONFIG_ROCKCHIP_RK3188) += rk3188/
 obj-$(CONFIG_ROCKCHIP_RK322X) += rk322x/
 obj-$(CONFIG_ROCKCHIP_RK3288) += rk3288/
+obj-$(CONFIG_ROCKCHIP_RK3308) += rk3308/
 obj-$(CONFIG_ROCKCHIP_RK3328) += rk3328/
 obj-$(CONFIG_ROCKCHIP_RK3368) += rk3368/
 obj-$(CONFIG_ROCKCHIP_RK3399) += rk3399/
diff --git a/arch/arm/mach-rockchip/rk3308/Kconfig b/arch/arm/mach-rockchip/rk3308/Kconfig
new file mode 100644
index 00000000000..9c096615953
--- /dev/null
+++ b/arch/arm/mach-rockchip/rk3308/Kconfig
@@ -0,0 +1,14 @@
+if ROCKCHIP_RK3308
+
+config SYS_SOC
+	default "rk3308"
+
+config SYS_MALLOC_F_LEN
+	default 0x400
+
+config SPL_SERIAL_SUPPORT
+	default y
+
+config ROCKCHIP_BOOT_MODE_REG
+	default 0xff000500
+endif
diff --git a/arch/arm/mach-rockchip/rk3308/Makefile b/arch/arm/mach-rockchip/rk3308/Makefile
new file mode 100644
index 00000000000..ce4d44bb346
--- /dev/null
+++ b/arch/arm/mach-rockchip/rk3308/Makefile
@@ -0,0 +1,9 @@
+#
+# (C) Copyright 2018 Rockchip Electronics Co., Ltd.
+#
+# SPDX-License-Identifier:     GPL-2.0+
+#
+
+obj-y += syscon_rk3308.o
+obj-y += rk3308.o
+obj-y += clk_rk3308.o
diff --git a/arch/arm/mach-rockchip/rk3308/clk_rk3308.c b/arch/arm/mach-rockchip/rk3308/clk_rk3308.c
new file mode 100644
index 00000000000..51b43153e86
--- /dev/null
+++ b/arch/arm/mach-rockchip/rk3308/clk_rk3308.c
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2018 Fuzhou Rockchip Electronics Co., Ltd
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <syscon.h>
+#include <asm/arch-rockchip/clock.h>
+#include <asm/arch/cru_rk3308.h>
+
+int rockchip_get_clk(struct udevice **devp)
+{
+	return uclass_get_device_by_driver(UCLASS_CLK,
+			DM_GET_DRIVER(rockchip_rk3308_cru), devp);
+}
+
+void *rockchip_get_cru(void)
+{
+	struct rk3308_clk_priv *priv;
+	struct udevice *dev;
+	int ret;
+
+	ret = rockchip_get_clk(&dev);
+	if (ret)
+		return ERR_PTR(ret);
+
+	priv = dev_get_priv(dev);
+
+	return priv->cru;
+}
diff --git a/arch/arm/mach-rockchip/rk3308/rk3308.c b/arch/arm/mach-rockchip/rk3308/rk3308.c
new file mode 100644
index 00000000000..f27f9e8c0b2
--- /dev/null
+++ b/arch/arm/mach-rockchip/rk3308/rk3308.c
@@ -0,0 +1,175 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ *Copyright (c) 2018 Rockchip Electronics Co., Ltd
+ */
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/grf_rk3308.h>
+#include <asm/arch-rockchip/hardware.h>
+#include <asm/gpio.h>
+#include <debug_uart.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#include <asm/armv8/mmu.h>
+static struct mm_region rk3308_mem_map[] = {
+	{
+		.virt = 0x0UL,
+		.phys = 0x0UL,
+		.size = 0xff000000UL,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+			 PTE_BLOCK_INNER_SHARE
+	}, {
+		.virt = 0xff000000UL,
+		.phys = 0xff000000UL,
+		.size = 0x01000000UL,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+			 PTE_BLOCK_NON_SHARE |
+			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
+	}, {
+		/* List terminator */
+		0,
+	}
+};
+
+struct mm_region *mem_map = rk3308_mem_map;
+
+#define GRF_BASE	0xff000000
+#define SGRF_BASE	0xff2b0000
+
+enum {
+	GPIO1C7_SHIFT		= 8,
+	GPIO1C7_MASK		= GENMASK(11, 8),
+	GPIO1C7_GPIO		= 0,
+	GPIO1C7_UART1_RTSN,
+	GPIO1C7_UART2_TX_M0,
+	GPIO1C7_SPI2_MOSI,
+	GPIO1C7_JTAG_TMS,
+
+	GPIO1C6_SHIFT		= 4,
+	GPIO1C6_MASK		= GENMASK(7, 4),
+	GPIO1C6_GPIO		= 0,
+	GPIO1C6_UART1_CTSN,
+	GPIO1C6_UART2_RX_M0,
+	GPIO1C6_SPI2_MISO,
+	GPIO1C6_JTAG_TCLK,
+
+	GPIO4D3_SHIFT           = 6,
+	GPIO4D3_MASK            = GENMASK(7, 6),
+	GPIO4D3_GPIO            = 0,
+	GPIO4D3_SDMMC_D3,
+	GPIO4D3_UART2_TX_M1,
+
+	GPIO4D2_SHIFT           = 4,
+	GPIO4D2_MASK            = GENMASK(5, 4),
+	GPIO4D2_GPIO            = 0,
+	GPIO4D2_SDMMC_D2,
+	GPIO4D2_UART2_RX_M1,
+
+	UART2_IO_SEL_SHIFT	= 2,
+	UART2_IO_SEL_MASK	= GENMASK(3, 2),
+	UART2_IO_SEL_M0		= 0,
+	UART2_IO_SEL_M1,
+	UART2_IO_SEL_USB,
+
+	GPIO3B3_SEL_SRC_CTRL_SHIFT	= 7,
+	GPIO3B3_SEL_SRC_CTRL_MASK	= BIT(7),
+	GPIO3B3_SEL_SRC_CTRL_IOMUX	= 0,
+	GPIO3B3_SEL_SRC_CTRL_SEL_PLUS,
+
+	GPIO3B3_SEL_PLUS_SHIFT		= 4,
+	GPIO3B3_SEL_PLUS_MASK		= GENMASK(6, 4),
+	GPIO3B3_SEL_PLUS_GPIO3_B3	= 0,
+	GPIO3B3_SEL_PLUS_FLASH_ALE,
+	GPIO3B3_SEL_PLUS_EMMC_PWREN,
+	GPIO3B3_SEL_PLUS_SPI1_CLK,
+	GPIO3B3_SEL_PLUS_LCDC_D23_M1,
+
+	GPIO3B2_SEL_SRC_CTRL_SHIFT	= 3,
+	GPIO3B2_SEL_SRC_CTRL_MASK	= BIT(3),
+	GPIO3B2_SEL_SRC_CTRL_IOMUX	= 0,
+	GPIO3B2_SEL_SRC_CTRL_SEL_PLUS,
+
+	GPIO3B2_SEL_PLUS_SHIFT		= 0,
+	GPIO3B2_SEL_PLUS_MASK		= GENMASK(2, 0),
+	GPIO3B2_SEL_PLUS_GPIO3_B2	= 0,
+	GPIO3B2_SEL_PLUS_FLASH_RDN,
+	GPIO3B2_SEL_PLUS_EMMC_RSTN,
+	GPIO3B2_SEL_PLUS_SPI1_MISO,
+	GPIO3B2_SEL_PLUS_LCDC_D22_M1,
+};
+
+enum {
+	IOVSEL3_CTRL_SHIFT	= 8,
+	IOVSEL3_CTRL_MASK	= BIT(8),
+	VCCIO3_SEL_BY_GPIO	= 0,
+	VCCIO3_SEL_BY_IOVSEL3,
+
+	IOVSEL3_SHIFT		= 3,
+	IOVSEL3_MASK		= BIT(3),
+	VCCIO3_3V3		= 0,
+	VCCIO3_1V8,
+};
+
+/*
+ * The voltage of VCCIO3(which is the voltage domain of emmc/flash/sfc
+ * interface) can indicated by GPIO0_A4 or io_vsel3. The SOC defaults
+ * use GPIO0_A4 to indicate power supply voltage for VCCIO3 by hardware,
+ * then we can switch to io_vsel3 after system power on, and release GPIO0_A4
+ * for other usage.
+ */
+
+#define GPIO0_A4	4
+
+int rk_board_init(void)
+{
+	static struct rk3308_grf * const grf = (void *)GRF_BASE;
+	u32 val;
+	int ret;
+
+	ret = gpio_request(GPIO0_A4, "gpio0_a4");
+	if (ret < 0) {
+		printf("request for gpio0_a4 failed:%d\n", ret);
+		return 0;
+	}
+
+	gpio_direction_input(GPIO0_A4);
+
+	if (gpio_get_value(GPIO0_A4))
+		val = VCCIO3_SEL_BY_IOVSEL3 << IOVSEL3_CTRL_SHIFT |
+		      VCCIO3_1V8 << IOVSEL3_SHIFT;
+	else
+		val = VCCIO3_SEL_BY_IOVSEL3 << IOVSEL3_CTRL_SHIFT |
+		      VCCIO3_3V3 << IOVSEL3_SHIFT;
+	rk_clrsetreg(&grf->soc_con0, IOVSEL3_CTRL_MASK | IOVSEL3_MASK, val);
+
+	gpio_free(GPIO0_A4);
+	return 0;
+}
+
+#if defined(CONFIG_DEBUG_UART)
+__weak void board_debug_uart_init(void)
+{
+	static struct rk3308_grf * const grf = (void *)GRF_BASE;
+
+	/* Enable early UART2 channel m1 on the rk3308 */
+	rk_clrsetreg(&grf->soc_con5, UART2_IO_SEL_MASK,
+		     UART2_IO_SEL_M1 << UART2_IO_SEL_SHIFT);
+	rk_clrsetreg(&grf->gpio4d_iomux,
+		     GPIO4D3_MASK | GPIO4D2_MASK,
+		     GPIO4D2_UART2_RX_M1 << GPIO4D2_SHIFT |
+		     GPIO4D3_UART2_TX_M1 << GPIO4D3_SHIFT);
+}
+#endif
+
+#if defined(CONFIG_SPL_BUILD)
+int arch_cpu_init(void)
+{
+	static struct rk3308_sgrf * const sgrf = (void *)SGRF_BASE;
+
+	/* Set CRYPTO SDMMC EMMC NAND SFC USB master bus to be secure access */
+	rk_clrreg(&sgrf->con_secure0, 0x2b83);
+
+	return 0;
+}
+#endif
diff --git a/arch/arm/mach-rockchip/rk3308/syscon_rk3308.c b/arch/arm/mach-rockchip/rk3308/syscon_rk3308.c
new file mode 100644
index 00000000000..b380ff57233
--- /dev/null
+++ b/arch/arm/mach-rockchip/rk3308/syscon_rk3308.c
@@ -0,0 +1,20 @@
+// SPDX-License-Identifier:     GPL-2.0+
+/*
+ * (C) Copyright 2018 Rockchip Electronics Co., Ltd
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <syscon.h>
+#include <asm/arch-rockchip/clock.h>
+
+static const struct udevice_id rk3308_syscon_ids[] = {
+	{ .compatible = "rockchip,rk3308-grf", .data = ROCKCHIP_SYSCON_GRF },
+	{ }
+};
+
+U_BOOT_DRIVER(syscon_rk3308) = {
+	.name = "rk3308_syscon",
+	.id = UCLASS_SYSCON,
+	.of_match = rk3308_syscon_ids,
+};