u-boot/arch/arm/include/asm/arch-exynos/clk.h
Wolfgang Denk 1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files
Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
2013-07-24 09:44:38 -04:00

48 lines
1.1 KiB
C

/*
* (C) Copyright 2010 Samsung Electronics
* Minkyu Kang <mk7.kang@samsung.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#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
enum pll_src_bit {
EXYNOS_SRC_MPLL = 6,
EXYNOS_SRC_EPLL,
EXYNOS_SRC_VPLL,
};
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);
void set_i2s_clk_source(void);
int set_i2s_clk_prescaler(unsigned int src_frq, unsigned int dst_frq);
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