rockchip: rk3288: Add clock driver

Add a driver for setting up and modifying the various PLLs and peripheral
clocks on the RK3288.

Signed-off-by: Simon Glass <sjg@chromium.org>

1 files changed, 185 insertions, 0 deletions

diff --git a/arch/arm/include/asm/arch-rockchip/cru_rk3288.h b/arch/arm/include/asm/arch-rockchip/cru_rk3288.h
new file mode 100644
index 0000000..7ebcc40
--- /dev/null
+++ b/arch/arm/include/asm/arch-rockchip/cru_rk3288.h
@@ -0,0 +1,185 @@
+/*
+ * (C) Copyright 2015 Google, Inc
+ *
+ * (C) Copyright 2008-2014 Rockchip Electronics
+ * Peter, Software Engineering, <superpeter.cai@gmail.com>.
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+#ifndef _ASM_ARCH_CRU_RK3288_H
+#define _ASM_ARCH_CRU_RK3288_H
+
+#define OSC_HZ		(24 * 1000 * 1000)
+
+#define APLL_HZ		(1800 * 1000000)
+#define GPLL_HZ		(594 * 1000000)
+#define CPLL_HZ		(384 * 1000000)
+#define NPLL_HZ		(384 * 1000000)
+
+/* The SRAM is clocked off aclk_bus, so we want to max it out for boot speed */
+#define PD_BUS_ACLK_HZ	297000000
+#define PD_BUS_HCLK_HZ	148500000
+#define PD_BUS_PCLK_HZ	74250000
+
+#define PERI_ACLK_HZ	148500000
+#define PERI_HCLK_HZ	148500000
+#define PERI_PCLK_HZ	74250000
+
+struct rk3288_cru {
+	struct rk3288_pll {
+		u32 con0;
+		u32 con1;
+		u32 con2;
+		u32 con3;
+	} pll[5];
+	u32 cru_mode_con;
+	u32 reserved0[3];
+	u32 cru_clksel_con[43];
+	u32 reserved1[21];
+	u32 cru_clkgate_con[19];
+	u32 reserved2;
+	u32 cru_glb_srst_fst_value;
+	u32 cru_glb_srst_snd_value;
+	u32 cru_softrst_con[12];
+	u32 cru_misc_con;
+	u32 cru_glb_cnt_th;
+	u32 cru_glb_rst_con;
+	u32 reserved3;
+	u32 cru_glb_rst_st;
+	u32 reserved4;
+	u32 cru_sdmmc_con[2];
+	u32 cru_sdio0_con[2];
+	u32 cru_sdio1_con[2];
+	u32 cru_emmc_con[2];
+};
+check_member(rk3288_cru, cru_emmc_con[1], 0x021c);
+
+/* CRU_CLKSEL11_CON */
+enum {
+	HSICPHY_DIV_SHIFT	= 8,
+	HSICPHY_DIV_MASK	= 0x3f,
+
+	MMC0_PLL_SHIFT		= 6,
+	MMC0_PLL_MASK		= 3,
+	MMC0_PLL_SELECT_CODEC	= 0,
+	MMC0_PLL_SELECT_GENERAL,
+	MMC0_PLL_SELECT_24MHZ,
+
+	MMC0_DIV_SHIFT		= 0,
+	MMC0_DIV_MASK		= 0x3f,
+};
+
+/* CRU_CLKSEL12_CON */
+enum {
+	EMMC_PLL_SHIFT		= 0xe,
+	EMMC_PLL_MASK		= 3,
+	EMMC_PLL_SELECT_CODEC	= 0,
+	EMMC_PLL_SELECT_GENERAL,
+	EMMC_PLL_SELECT_24MHZ,
+
+	EMMC_DIV_SHIFT		= 8,
+	EMMC_DIV_MASK		= 0x3f,
+
+	SDIO0_PLL_SHIFT		= 6,
+	SDIO0_PLL_MASK		= 3,
+	SDIO0_PLL_SELECT_CODEC	= 0,
+	SDIO0_PLL_SELECT_GENERAL,
+	SDIO0_PLL_SELECT_24MHZ,
+
+	SDIO0_DIV_SHIFT		= 0,
+	SDIO0_DIV_MASK		= 0x3f,
+};
+
+/* CRU_CLKSEL25_CON */
+enum {
+	SPI1_PLL_SHIFT		= 0xf,
+	SPI1_PLL_MASK		= 1,
+	SPI1_PLL_SELECT_CODEC	= 0,
+	SPI1_PLL_SELECT_GENERAL,
+
+	SPI1_DIV_SHIFT		= 8,
+	SPI1_DIV_MASK		= 0x7f,
+
+	SPI0_PLL_SHIFT		= 7,
+	SPI0_PLL_MASK		= 1,
+	SPI0_PLL_SELECT_CODEC	= 0,
+	SPI0_PLL_SELECT_GENERAL,
+
+	SPI0_DIV_SHIFT		= 0,
+	SPI0_DIV_MASK		= 0x7f,
+};
+
+/* CRU_CLKSEL39_CON */
+enum {
+	ACLK_HEVC_PLL_SHIFT	= 0xe,
+	ACLK_HEVC_PLL_MASK	= 3,
+	ACLK_HEVC_PLL_SELECT_CODEC = 0,
+	ACLK_HEVC_PLL_SELECT_GENERAL,
+	ACLK_HEVC_PLL_SELECT_NEW,
+
+	ACLK_HEVC_DIV_SHIFT	= 8,
+	ACLK_HEVC_DIV_MASK	= 0x1f,
+
+	SPI2_PLL_SHIFT		= 7,
+	SPI2_PLL_MASK		= 1,
+	SPI2_PLL_SELECT_CODEC	= 0,
+	SPI2_PLL_SELECT_GENERAL,
+
+	SPI2_DIV_SHIFT		= 0,
+	SPI2_DIV_MASK		= 0x7f,
+};
+
+/* CRU_MODE_CON */
+enum {
+	NPLL_WORK_SHIFT		= 0xe,
+	NPLL_WORK_MASK		= 3,
+	NPLL_WORK_SLOW		= 0,
+	NPLL_WORK_NORMAL,
+	NPLL_WORK_DEEP,
+
+	GPLL_WORK_SHIFT		= 0xc,
+	GPLL_WORK_MASK		= 3,
+	GPLL_WORK_SLOW		= 0,
+	GPLL_WORK_NORMAL,
+	GPLL_WORK_DEEP,
+
+	CPLL_WORK_SHIFT		= 8,
+	CPLL_WORK_MASK		= 3,
+	CPLL_WORK_SLOW		= 0,
+	CPLL_WORK_NORMAL,
+	CPLL_WORK_DEEP,
+
+	DPLL_WORK_SHIFT		= 4,
+	DPLL_WORK_MASK		= 3,
+	DPLL_WORK_SLOW		= 0,
+	DPLL_WORK_NORMAL,
+	DPLL_WORK_DEEP,
+
+	APLL_WORK_SHIFT		= 0,
+	APLL_WORK_MASK		= 3,
+	APLL_WORK_SLOW		= 0,
+	APLL_WORK_NORMAL,
+	APLL_WORK_DEEP,
+};
+
+/* CRU_APLL_CON0 */
+enum {
+	CLKR_SHIFT		= 8,
+	CLKR_MASK		= 0x3f,
+
+	CLKOD_SHIFT		= 0,
+	CLKOD_MASK		= 0xf,
+};
+
+/* CRU_APLL_CON1 */
+enum {
+	LOCK_SHIFT		= 0x1f,
+	LOCK_MASK		= 1,
+	LOCK_UNLOCK		= 0,
+	LOCK_LOCK,
+
+	CLKF_SHIFT		= 0,
+	CLKF_MASK		= 0x1fff,
+};
+
+#endif