arch/arm/include/asm/arch-mx25/clock.h

   1 /*
   2  *
   3  * (c) 2009 Ilya Yanok, Emcraft Systems <yanok@emcraft.com>
   4  *
   5  * Modified for mx25 by John Rigby <jrigby@gmail.com>
   6  *
   7  * SPDX-License-Identifier:     GPL-2.0+
   8  */
   9
  10 #ifndef __ASM_ARCH_CLOCK_H
  11 #define __ASM_ARCH_CLOCK_H
  12
  13 #include <common.h>
  14
  15 #ifdef CONFIG_MX25_HCLK_FREQ
  16 #define MXC_HCLK        CONFIG_MX25_HCLK_FREQ
  17 #else
  18 #define MXC_HCLK        24000000
  19 #endif
  20
  21 #ifdef CONFIG_MX25_CLK32
  22 #define MXC_CLK32       CONFIG_MX25_CLK32
  23 #else
  24 #define MXC_CLK32       32768
  25 #endif
  26
  27 enum mxc_clock {
  28         /* PER clocks (do not change order) */
  29         MXC_CSI_CLK,
  30         MXC_EPIT_CLK,
  31         MXC_ESAI_CLK,
  32         MXC_ESDHC1_CLK,
  33         MXC_ESDHC2_CLK,
  34         MXC_GPT_CLK,
  35         MXC_I2C_CLK,
  36         MXC_LCDC_CLK,
  37         MXC_NFC_CLK,
  38         MXC_OWIRE_CLK,
  39         MXC_PWM_CLK,
  40         MXC_SIM1_CLK,
  41         MXC_SIM2_CLK,
  42         MXC_SSI1_CLK,
  43         MXC_SSI2_CLK,
  44         MXC_UART_CLK,
  45         /* Other clocks */
  46         MXC_ARM_CLK,
  47         MXC_AHB_CLK,
  48         MXC_IPG_CLK,
  49         MXC_CSPI_CLK,
  50         MXC_FEC_CLK,
  51         MXC_CLK_NUM
  52 };
  53
  54 unsigned int mxc_get_clock(enum mxc_clock clk);
  55
  56 #define imx_get_uartclk()       mxc_get_clock(MXC_UART_CLK)
  57 #define imx_get_fecclk()        mxc_get_clock(MXC_FEC_CLK)
  58
  59 #endif /* __ASM_ARCH_CLOCK_H */