arch/arm/include/asm/arch-at91/clk.h

   1 /*
   2  * (C) Copyright 2007
   3  * Stelian Pop <stelian@popies.net>
   4  * Lead Tech Design <www.leadtechdesign.com>
   5  * Copyright (C) 2009 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
   6  *
   7  * SPDX-License-Identifier:     GPL-2.0+
   8  */
   9 #ifndef __ASM_ARM_ARCH_CLK_H__
  10 #define __ASM_ARM_ARCH_CLK_H__
  11
  12 #include <asm/arch/hardware.h>
  13 #include <asm/global_data.h>
  14
  15 static inline unsigned long get_cpu_clk_rate(void)
  16 {
  17         DECLARE_GLOBAL_DATA_PTR;
  18         return gd->arch.cpu_clk_rate_hz;
  19 }
  20
  21 static inline unsigned long get_main_clk_rate(void)
  22 {
  23         DECLARE_GLOBAL_DATA_PTR;
  24         return gd->arch.main_clk_rate_hz;
  25 }
  26
  27 static inline unsigned long get_mck_clk_rate(void)
  28 {
  29         DECLARE_GLOBAL_DATA_PTR;
  30         return gd->arch.mck_rate_hz;
  31 }
  32
  33 static inline unsigned long get_plla_clk_rate(void)
  34 {
  35         DECLARE_GLOBAL_DATA_PTR;
  36         return gd->arch.plla_rate_hz;
  37 }
  38
  39 static inline unsigned long get_pllb_clk_rate(void)
  40 {
  41         DECLARE_GLOBAL_DATA_PTR;
  42         return gd->arch.pllb_rate_hz;
  43 }
  44
  45 static inline u32 get_pllb_init(void)
  46 {
  47         DECLARE_GLOBAL_DATA_PTR;
  48         return gd->arch.at91_pllb_usb_init;
  49 }
  50
  51 static inline unsigned long get_macb_pclk_rate(unsigned int dev_id)
  52 {
  53         return get_mck_clk_rate();
  54 }
  55
  56 static inline unsigned long get_usart_clk_rate(unsigned int dev_id)
  57 {
  58         return get_mck_clk_rate();
  59 }
  60
  61 static inline unsigned long get_lcdc_clk_rate(unsigned int dev_id)
  62 {
  63         return get_mck_clk_rate();
  64 }
  65
  66 static inline unsigned long get_spi_clk_rate(unsigned int dev_id)
  67 {
  68         return get_mck_clk_rate();
  69 }
  70
  71 static inline unsigned long get_twi_clk_rate(unsigned int dev_id)
  72 {
  73         return get_mck_clk_rate();
  74 }
  75
  76 static inline unsigned long get_mci_clk_rate(void)
  77 {
  78         return get_mck_clk_rate();
  79 }
  80
  81 int at91_clock_init(unsigned long main_clock);
  82 void at91_periph_clk_enable(int id);
  83 #endif /* __ASM_ARM_ARCH_CLK_H__ */