rockchip: rk3036: Add clock driver

Add a driver for setting up and modifying the various PLLs, peripheral
clocks and mmc clocks on RK3036

Signed-off-by: Lin Huang <hl@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>

1 files changed, 168 insertions, 0 deletions

diff --git a/arch/arm/include/asm/arch-rockchip/cru_rk3036.h b/arch/arm/include/asm/arch-rockchip/cru_rk3036.h
new file mode 100644
index 0000000..7ecc8ee
--- /dev/null
+++ b/arch/arm/include/asm/arch-rockchip/cru_rk3036.h
@@ -0,0 +1,168 @@
+/*
+ * (C) Copyright 2015 Rockchip Electronics Co., Ltd
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+#ifndef _ASM_ARCH_CRU_RK3036_H
+#define _ASM_ARCH_CRU_RK3036_H
+
+#include <common.h>
+
+#define OSC_HZ		(24 * 1000 * 1000)
+
+#define APLL_HZ		(600 * 1000000)
+#define GPLL_HZ		(594 * 1000000)
+
+#define CORE_PERI_HZ	150000000
+#define CORE_ACLK_HZ	300000000
+
+#define CPU_ACLK_HZ	150000000
+#define CPU_HCLK_HZ	300000000
+#define CPU_PCLK_HZ	300000000
+
+#define PERI_ACLK_HZ	148500000
+#define PERI_HCLK_HZ	148500000
+#define PERI_PCLK_HZ	74250000
+
+struct rk3036_cru {
+	struct rk3036_pll {
+		unsigned int con0;
+		unsigned int con1;
+		unsigned int con2;
+		unsigned int con3;
+	} pll[4];
+	unsigned int cru_mode_con;
+	unsigned int cru_clksel_con[35];
+	unsigned int cru_clkgate_con[11];
+	unsigned int reserved;
+	unsigned int cru_glb_srst_fst_value;
+	unsigned int cru_glb_srst_snd_value;
+	unsigned int reserved1[2];
+	unsigned int cru_softrst_con[9];
+	unsigned int cru_misc_con;
+	unsigned int reserved2[2];
+	unsigned int cru_glb_cnt_th;
+	unsigned int cru_sdmmc_con[2];
+	unsigned int cru_sdio_con[2];
+	unsigned int cru_emmc_con[2];
+	unsigned int reserved3;
+	unsigned int cru_rst_st;
+	unsigned int reserved4[0x23];
+	unsigned int cru_pll_mask_con;
+};
+check_member(rk3036_cru, cru_pll_mask_con, 0x01f0);
+
+struct pll_div {
+	u32 refdiv;
+	u32 fbdiv;
+	u32 postdiv1;
+	u32 postdiv2;
+	u32 frac;
+};
+
+enum {
+	/* PLLCON0*/
+	PLL_POSTDIV1_MASK	= 7,
+	PLL_POSTDIV1_SHIFT	= 12,
+	PLL_FBDIV_MASK		= 0xfff,
+	PLL_FBDIV_SHIFT		= 0,
+
+	/* PLLCON1 */
+	PLL_DSMPD_MASK		= 1,
+	PLL_DSMPD_SHIFT		= 12,
+	PLL_LOCK_STATUS_MASK	= 1,
+	PLL_LOCK_STATUS_SHIFT	= 10,
+	PLL_POSTDIV2_MASK	= 7,
+	PLL_POSTDIV2_SHIFT	= 6,
+	PLL_REFDIV_MASK		= 0x3f,
+	PLL_REFDIV_SHIFT	= 0,
+	PLL_RST_SHIFT		= 14,
+
+	/* CRU_MODE */
+	GPLL_MODE_MASK		= 3,
+	GPLL_MODE_SHIFT		= 12,
+	GPLL_MODE_SLOW		= 0,
+	GPLL_MODE_NORM,
+	GPLL_MODE_DEEP,
+	DPLL_MODE_MASK		= 1,
+	DPLL_MODE_SHIFT		= 4,
+	DPLL_MODE_SLOW		= 0,
+	DPLL_MODE_NORM,
+	APLL_MODE_MASK		= 1,
+	APLL_MODE_SHIFT		= 0,
+	APLL_MODE_SLOW		= 0,
+	APLL_MODE_NORM,
+
+	/* CRU_CLK_SEL0_CON */
+	CPU_CLK_PLL_SEL_MASK	= 3,
+	CPU_CLK_PLL_SEL_SHIFT	= 14,
+	CPU_CLK_PLL_SEL_APLL	= 0,
+	CPU_CLK_PLL_SEL_DPLL,
+	CPU_CLK_PLL_SEL_GPLL,
+	ACLK_CPU_DIV_MASK	= 0x1f,
+	ACLK_CPU_DIV_SHIFT	= 8,
+	CORE_CLK_PLL_SEL_MASK	= 1,
+	CORE_CLK_PLL_SEL_SHIFT	= 7,
+	CORE_CLK_PLL_SEL_APLL	= 0,
+	CORE_CLK_PLL_SEL_GPLL,
+	CORE_DIV_CON_MASK	= 0x1f,
+	CORE_DIV_CON_SHIFT	= 0,
+
+	/* CRU_CLK_SEL1_CON */
+	CPU_PCLK_DIV_MASK	= 7,
+	CPU_PCLK_DIV_SHIFT	= 12,
+	CPU_HCLK_DIV_MASK	= 3,
+	CPU_HCLK_DIV_SHIFT	= 8,
+	CORE_ACLK_DIV_MASK	= 7,
+	CORE_ACLK_DIV_SHIFT	= 4,
+	CORE_PERI_DIV_MASK	= 0xf,
+	CORE_PERI_DIV_SHIFT	= 0,
+
+	/* CRU_CLKSEL10_CON */
+	PERI_PLL_SEL_MASK	= 3,
+	PERI_PLL_SEL_SHIFT	= 14,
+	PERI_PLL_APLL		= 0,
+	PERI_PLL_DPLL,
+	PERI_PLL_GPLL,
+	PERI_PCLK_DIV_MASK	= 3,
+	PERI_PCLK_DIV_SHIFT	= 12,
+	PERI_HCLK_DIV_MASK	= 3,
+	PERI_HCLK_DIV_SHIFT	= 8,
+	PERI_ACLK_DIV_MASK	= 0x1f,
+	PERI_ACLK_DIV_SHIFT	= 0,
+
+	/* CRU_CLKSEL11_CON */
+	SDIO_DIV_MASK		= 0x7f,
+	SDIO_DIV_SHIFT		= 8,
+	MMC0_DIV_MASK		= 0x7f,
+	MMC0_DIV_SHIFT		= 0,
+
+	/* CRU_CLKSEL12_CON */
+	EMMC_PLL_MASK		= 3,
+	EMMC_PLL_SHIFT		= 12,
+	EMMC_SEL_APLL		= 0,
+	EMMC_SEL_DPLL,
+	EMMC_SEL_GPLL,
+	EMMC_SEL_24M,
+	SDIO_PLL_MASK		= 3,
+	SDIO_PLL_SHIFT		= 10,
+	SDIO_SEL_APLL		= 0,
+	SDIO_SEL_DPLL,
+	SDIO_SEL_GPLL,
+	SDIO_SEL_24M,
+	MMC0_PLL_MASK		= 3,
+	MMC0_PLL_SHIFT		= 8,
+	MMC0_SEL_APLL		= 0,
+	MMC0_SEL_DPLL,
+	MMC0_SEL_GPLL,
+	MMC0_SEL_24M,
+	EMMC_DIV_MASK		= 0x7f,
+	EMMC_DIV_SHIFT		= 0,
+
+	/* CRU_SOFTRST5_CON */
+	DDRCTRL_PSRST_SHIFT	= 11,
+	DDRCTRL_SRST_SHIFT	= 10,
+	DDRPHY_PSRST_SHIFT	= 9,
+	DDRPHY_SRST_SHIFT	= 8,
+};
+#endif