2018-05-06 21:58:06 +00:00
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/* SPDX-License-Identifier: GPL-2.0+ */
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2011-01-24 06:22:23 +00:00
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/*
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* (C) Copyright 2010 Samsung Electronics
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* Minkyu Kang <mk7.kang@samsung.com>
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*/
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#ifndef __ASM_ARM_ARCH_CLK_H_
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#define __ASM_ARM_ARCH_CLK_H_
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#define APLL 0
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#define MPLL 1
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#define EPLL 2
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#define HPLL 3
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#define VPLL 4
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2012-07-03 20:02:58 +00:00
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#define BPLL 5
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2013-12-26 04:14:21 +00:00
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#define RPLL 6
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2014-09-05 11:23:32 +00:00
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#define SPLL 7
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2015-03-04 13:35:24 +00:00
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#define CPLL 8
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#define DPLL 9
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#define IPLL 10
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2011-01-24 06:22:23 +00:00
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2014-05-16 04:59:50 +00:00
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#define MASK_PRE_RATIO(x) (0xff << ((x << 4) + 8))
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#define MASK_RATIO(x) (0xf << (x << 4))
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#define SET_PRE_RATIO(x, y) ((y & 0xff) << ((x << 4) + 8))
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#define SET_RATIO(x, y) ((y & 0xf) << (x << 4))
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2013-03-28 04:32:21 +00:00
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enum pll_src_bit {
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EXYNOS_SRC_MPLL = 6,
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EXYNOS_SRC_EPLL,
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EXYNOS_SRC_VPLL,
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2015-02-04 10:30:01 +00:00
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EXYNOS542X_SRC_MPLL = 3,
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EXYNOS542X_SRC_SPLL,
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EXYNOS542X_SRC_EPLL = 6,
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EXYNOS542X_SRC_RPLL,
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2013-03-28 04:32:21 +00:00
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};
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2011-01-24 06:22:23 +00:00
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unsigned long get_pll_clk(int pllreg);
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unsigned long get_arm_clk(void);
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2012-07-23 21:23:48 +00:00
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unsigned long get_i2c_clk(void);
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2011-01-24 06:22:23 +00:00
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unsigned long get_pwm_clk(void);
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unsigned long get_uart_clk(int dev_index);
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2012-12-27 22:30:32 +00:00
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unsigned long get_mmc_clk(int dev_index);
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2011-05-17 21:19:17 +00:00
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void set_mmc_clk(int dev_index, unsigned int div);
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2012-04-05 19:36:12 +00:00
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unsigned long get_lcd_clk(void);
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void set_lcd_clk(void);
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void set_mipi_clk(void);
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2013-09-11 11:08:48 +00:00
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int set_i2s_clk_source(unsigned int i2s_id);
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int set_i2s_clk_prescaler(unsigned int src_frq, unsigned int dst_frq,
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unsigned int i2s_id);
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2012-10-25 19:49:29 +00:00
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int set_epll_clk(unsigned long rate);
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2012-11-02 01:15:34 +00:00
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int set_spi_clk(int periph_id, unsigned int rate);
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2011-01-24 06:22:23 +00:00
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2013-03-28 04:32:21 +00:00
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/**
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* get the clk frequency of the required peripheral
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*
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* @param peripheral Peripheral id
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*
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2022-01-19 17:05:50 +00:00
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* Return: frequency of the peripheral clk
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2013-03-28 04:32:21 +00:00
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*/
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unsigned long clock_get_periph_rate(int peripheral);
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2011-01-24 06:22:23 +00:00
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#endif
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