u-boot/arch/arm/mach-exynos/include/mach/clk.h
Thomas Abraham 77b55e8cfc ARM: exynos: move SoC sources to mach-exynos
Move arch/arm/cpu/armv7/exynos/* to arch/arm/mach-exynos/* to allow
reuse of existing code for ARMv8 based Exynos platforms.

Cc: Minkyu Kang <mk7.kang@samsung.com>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Przemyslaw Marczak <p.marczak@samsung.com>
Acked-by: Przemyslaw Marczak <p.marczak@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2015-08-17 13:06:52 +09:00

63 lines
1.5 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
#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