arch/arm/include/asm/arch-mxs/clock.h

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