diff options
Diffstat (limited to 'roms/u-boot/arch/arm/include/asm/arch-exynos/clk.h')
| -rw-r--r-- | roms/u-boot/arch/arm/include/asm/arch-exynos/clk.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/roms/u-boot/arch/arm/include/asm/arch-exynos/clk.h b/roms/u-boot/arch/arm/include/asm/arch-exynos/clk.h new file mode 100644 index 00000000..cdeef324 --- /dev/null +++ b/roms/u-boot/arch/arm/include/asm/arch-exynos/clk.h @@ -0,0 +1,50 @@ +/* + * (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 |