1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * Freescale i.MX23/i.MX28 Clock 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com> 5*4882a593Smuzhiyun * on behalf of DENX Software Engineering GmbH 6*4882a593Smuzhiyun * 7*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+ 8*4882a593Smuzhiyun */ 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #ifndef __CLOCK_H__ 11*4882a593Smuzhiyun #define __CLOCK_H__ 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun enum mxc_clock { 14*4882a593Smuzhiyun MXC_ARM_CLK = 0, 15*4882a593Smuzhiyun MXC_AHB_CLK, 16*4882a593Smuzhiyun MXC_IPG_CLK, 17*4882a593Smuzhiyun MXC_EMI_CLK, 18*4882a593Smuzhiyun MXC_GPMI_CLK, 19*4882a593Smuzhiyun MXC_IO0_CLK, 20*4882a593Smuzhiyun MXC_IO1_CLK, 21*4882a593Smuzhiyun MXC_XTAL_CLK, 22*4882a593Smuzhiyun MXC_SSP0_CLK, 23*4882a593Smuzhiyun #ifdef CONFIG_MX28 24*4882a593Smuzhiyun MXC_SSP1_CLK, 25*4882a593Smuzhiyun MXC_SSP2_CLK, 26*4882a593Smuzhiyun MXC_SSP3_CLK, 27*4882a593Smuzhiyun #endif 28*4882a593Smuzhiyun }; 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun enum mxs_ioclock { 31*4882a593Smuzhiyun MXC_IOCLK0 = 0, 32*4882a593Smuzhiyun MXC_IOCLK1, 33*4882a593Smuzhiyun }; 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun enum mxs_sspclock { 36*4882a593Smuzhiyun MXC_SSPCLK0 = 0, 37*4882a593Smuzhiyun #ifdef CONFIG_MX28 38*4882a593Smuzhiyun MXC_SSPCLK1, 39*4882a593Smuzhiyun MXC_SSPCLK2, 40*4882a593Smuzhiyun MXC_SSPCLK3, 41*4882a593Smuzhiyun #endif 42*4882a593Smuzhiyun }; 43*4882a593Smuzhiyun 44*4882a593Smuzhiyun uint32_t mxc_get_clock(enum mxc_clock clk); 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun void mxs_set_ioclk(enum mxs_ioclock io, uint32_t freq); 47*4882a593Smuzhiyun void mxs_set_sspclk(enum mxs_sspclock ssp, uint32_t freq, int xtal); 48*4882a593Smuzhiyun void mxs_set_ssp_busclock(unsigned int bus, uint32_t freq); 49*4882a593Smuzhiyun void mxs_set_lcdclk(uint32_t __maybe_unused lcd_base, uint32_t freq); 50*4882a593Smuzhiyun 51*4882a593Smuzhiyun /* Compatibility with the FEC Ethernet driver */ 52*4882a593Smuzhiyun #define imx_get_fecclk() mxc_get_clock(MXC_AHB_CLK) 53*4882a593Smuzhiyun 54*4882a593Smuzhiyun #endif /* __CLOCK_H__ */ 55