GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/bootloader/u-boot-2020.01/arch/arm/mach-exynos/include/mach/clk.h

@@ -0,0 +1,62 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * (C) Copyright 2010 Samsung Electronics
+ * Minkyu Kang <mk7.kang@samsung.com>
+ */
+
+#ifndef __ASM_ARM_ARCH_CLK_H_
+#define __ASM_ARM_ARCH_CLK_H_
+
+#define APLL	0
+#define MPLL	1
+#define EPLL	2
+#define HPLL	3
+#define VPLL	4
+#define BPLL	5
+#define RPLL	6
+#define SPLL	7
+#define CPLL	8
+#define DPLL	9
+#define IPLL	10
+
+#define MASK_PRE_RATIO(x)	(0xff << ((x << 4) + 8))
+#define MASK_RATIO(x)		(0xf << (x << 4))
+#define SET_PRE_RATIO(x, y)	((y & 0xff) << ((x << 4) + 8))
+#define SET_RATIO(x, y)		((y & 0xf) << (x << 4))
+
+enum pll_src_bit {
+	EXYNOS_SRC_MPLL = 6,
+	EXYNOS_SRC_EPLL,
+	EXYNOS_SRC_VPLL,
+	EXYNOS542X_SRC_MPLL = 3,
+	EXYNOS542X_SRC_SPLL,
+	EXYNOS542X_SRC_EPLL = 6,
+	EXYNOS542X_SRC_RPLL,
+};
+
+unsigned long get_pll_clk(int pllreg);
+unsigned long get_arm_clk(void);
+unsigned long get_i2c_clk(void);
+unsigned long get_pwm_clk(void);
+unsigned long get_uart_clk(int dev_index);
+unsigned long get_mmc_clk(int dev_index);
+void set_mmc_clk(int dev_index, unsigned int div);
+unsigned long get_lcd_clk(void);
+void set_lcd_clk(void);
+void set_mipi_clk(void);
+int set_i2s_clk_source(unsigned int i2s_id);
+int set_i2s_clk_prescaler(unsigned int src_frq, unsigned int dst_frq,
+				unsigned int i2s_id);
+int set_epll_clk(unsigned long rate);
+int set_spi_clk(int periph_id, unsigned int rate);
+
+/**
+ * get the clk frequency of the required peripheral
+ *
+ * @param peripheral	Peripheral id
+ *
+ * @return frequency of the peripheral clk
+ */
+unsigned long clock_get_periph_rate(int peripheral);
+
+#endif