u-boot/arch/arm/include/asm/arch-exynos/clk.h
Rajeshwari Birje 060c227a28 Exynos5420: Add clock initialization for 5420
This patch adds code for clock initialization and clock settings
of various IP's and controllers, required for Exynos5420

Signed-off-by: Rajeshwari S Shinde <rajeshwari.s@samsung.com>
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2013-12-30 16:50:34 +09:00

50 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
#define RPLL 6
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);
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