mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-19 03:08:31 +00:00
ecdfb4e9d2
We planned to fetch peripheral rate through one generic API per peripheral. These generic peripheral functions are in turn expected to fetch apt values from a function refactored as per SoC versions. This patch adds support for fetching peripheral rates for Exynos5420 and Exynos5800. Signed-off-by: Akshay Saraswat <akshay.s@samsung.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
60 lines
1.4 KiB
C
60 lines
1.4 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 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
|