LXR uboot/drivers/clk/at91/clk-slow.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.h>
  11
  12static int at91_slow_clk_enable(struct clk *clk)
  13{
  14        return 0;
  15}
  16
  17static ulong at91_slow_clk_get_rate(struct clk *clk)
  18{
  19        return CONFIG_SYS_AT91_SLOW_CLOCK;
  20}
  21
  22static struct clk_ops at91_slow_clk_ops = {
  23        .enable = at91_slow_clk_enable,
  24        .get_rate = at91_slow_clk_get_rate,
  25};
  26
  27static const struct udevice_id at91_slow_clk_match[] = {
  28        { .compatible = "atmel,at91sam9x5-clk-slow" },
  29        {}
  30};
  31
  32U_BOOT_DRIVER(at91_slow_clk) = {
  33        .name = "at91-slow-clk",
  34        .id = UCLASS_CLK,
  35        .of_match = at91_slow_clk_match,
  36        .ops = &at91_slow_clk_ops,
  37};
  38