drivers/clk/at91/clk-master.c

   1 /*
   2  * Copyright (C) 2016 Atmel Corporation
   3  *               Wenyou.Yang <wenyou.yang@atmel.com>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <common.h>
   9 #include <clk-uclass.h>
  10 #include <dm/device.h>
  11
  12 DECLARE_GLOBAL_DATA_PTR;
  13
  14 static ulong at91_master_clk_get_rate(struct clk *clk)
  15 {
  16         return gd->arch.mck_rate_hz;
  17 }
  18
  19 static struct clk_ops at91_master_clk_ops = {
  20         .get_rate = at91_master_clk_get_rate,
  21 };
  22
  23 static const struct udevice_id at91_master_clk_match[] = {
  24         { .compatible = "atmel,at91rm9200-clk-master" },
  25         { .compatible = "atmel,at91sam9x5-clk-master" },
  26         {}
  27 };
  28
  29 U_BOOT_DRIVER(at91_master_clk) = {
  30         .name = "at91-master-clk",
  31         .id = UCLASS_CLK,
  32         .of_match = at91_master_clk_match,
  33         .ops = &at91_master_clk_ops,
  34 };