rockchip: Add basic peripheral and clock definitions

Add header files for the peripherals and clocks supported on Rockchip
platforms. The particular implementation (and register set) for each is
SoC-specific, but it seems that the naming can be generic.

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

arch/arm/include/asm/arch-rockchip/clock.h

+/*
+ * (C) Copyright 2015 Google, Inc
+ *
+ * SPDX-License-Identifier:	GPL-2.0
+ */
+
+#ifndef _ASM_ARCH_CLOCK_H
+#define _ASM_ARCH_CLOCK_H
+
+/* define pll mode */
+#define RKCLK_PLL_MODE_SLOW		0
+#define RKCLK_PLL_MODE_NORMAL		1
+
+enum {
+	ROCKCHIP_SYSCON_NOC,
+	ROCKCHIP_SYSCON_GRF,
+	ROCKCHIP_SYSCON_SGRF,
+	ROCKCHIP_SYSCON_PMU,
+};
+
+/* Standard Rockchip clock numbers */
+enum rk_clk_id {
+	CLK_OSC,
+	CLK_ARM,
+	CLK_DDR,
+	CLK_CODEC,
+	CLK_GENERAL,
+	CLK_NEW,
+
+	CLK_COUNT,
+};
+
+static inline int rk_pll_id(enum rk_clk_id clk_id)
+{
+	return clk_id - 1;
+}
+
+/**
+ * rockchip_get_cru() - get a pointer to the clock/reset unit registers
+ *
+ * @return pointer to registers, or -ve error on error
+ */
+void *rockchip_get_cru(void);
+
+#endif

arch/arm/include/asm/arch-rockchip/hardware.h

+/*
+ * Copyright 2015 Google, Inc
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _ASM_ARCH_HARDWARE_H
+#define _ASM_ARCH_HARDWARE_H
+
+#define RK_CLRSETBITS(clr, set)		((((clr) | (set)) << 16) | set)
+#define RK_SETBITS(set)			RK_CLRSETBITS(0, set)
+#define RK_CLRBITS(clr)			RK_CLRSETBITS(clr, 0)
+
+#define TIMER7_BASE		0xff810020
+
+#define rk_clrsetreg(addr, clr, set)	writel((clr) << 16 | (set), addr)
+#define rk_clrreg(addr, clr)		writel((clr) << 16, addr)
+#define rk_setreg(addr, set)		writel(set, addr)
+
+#endif

arch/arm/include/asm/arch-rockchip/periph.h

+/*
+ * (C) Copyright 2015 Google, Inc
+ *
+ * SPDX-License-Identifier:	GPL-2.0
+ */
+
+#ifndef _ASM_ARCH_PERIPH_H
+#define _ASM_ARCH_PERIPH_H
+
+/*
+ * The peripherals supported by the hardware. This is used to specify clocks
+ * and pinctrl settings. Some SoCs will not support all of these, but it
+ * provides a common reference for common drivers to use.
+ */
+enum periph_id {
+	PERIPH_ID_PWM0,
+	PERIPH_ID_PWM1,
+	PERIPH_ID_PWM2,
+	PERIPH_ID_PWM3,
+	PERIPH_ID_PWM4,
+	PERIPH_ID_I2C0,
+	PERIPH_ID_I2C1,
+	PERIPH_ID_I2C2,
+	PERIPH_ID_I2C3,
+	PERIPH_ID_I2C4,
+	PERIPH_ID_I2C5,
+	PERIPH_ID_SPI0,
+	PERIPH_ID_SPI1,
+	PERIPH_ID_SPI2,
+	PERIPH_ID_UART0,
+	PERIPH_ID_UART1,
+	PERIPH_ID_UART2,
+	PERIPH_ID_UART3,
+	PERIPH_ID_UART4,
+	PERIPH_ID_LCDC0,
+	PERIPH_ID_LCDC1,
+	PERIPH_ID_SDMMC0,
+	PERIPH_ID_SDMMC1,
+	PERIPH_ID_SDMMC2,
+	PERIPH_ID_HDMI,
+
+	PERIPH_ID_COUNT,
+
+	/* Some aliases */
+	PERIPH_ID_EMMC = PERIPH_ID_SDMMC0,
+	PERIPH_ID_SDCARD = PERIPH_ID_SDMMC1,
+	PERIPH_ID_UART_BT = PERIPH_ID_UART0,
+	PERIPH_ID_UART_BB = PERIPH_ID_UART1,
+	PERIPH_ID_UART_DBG = PERIPH_ID_UART2,
+	PERIPH_ID_UART_GPS = PERIPH_ID_UART3,
+	PERIPH_ID_UART_EXP = PERIPH_ID_UART4,
+};
+
+#endif