arch/avr32/mach-at32ap/at32ap.c

   1 /*
   2  * Copyright (C) 2006 Atmel Corporation
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  */
   8
   9 #include <linux/clk.h>
  10 #include <linux/err.h>
  11 #include <linux/init.h>
  12 #include <linux/platform_device.h>
  13
  14 #include <asm/arch/init.h>
  15
  16 void __init setup_platform(void)
  17 {
  18         at32_clock_init();
  19         at32_portmux_init();
  20 }
  21
  22 static int __init pdc_probe(struct platform_device *pdev)
  23 {
  24         struct clk *pclk, *hclk;
  25
  26         pclk = clk_get(&pdev->dev, "pclk");
  27         if (IS_ERR(pclk)) {
  28                 dev_err(&pdev->dev, "no pclk defined\n");
  29                 return PTR_ERR(pclk);
  30         }
  31         hclk = clk_get(&pdev->dev, "hclk");
  32         if (IS_ERR(hclk)) {
  33                 dev_err(&pdev->dev, "no hclk defined\n");
  34                 clk_put(pclk);
  35                 return PTR_ERR(hclk);
  36         }
  37
  38         clk_enable(pclk);
  39         clk_enable(hclk);
  40
  41         dev_info(&pdev->dev, "Atmel Peripheral DMA Controller enabled\n");
  42         return 0;
  43 }
  44
  45 static struct platform_driver pdc_driver = {
  46         .probe          = pdc_probe,
  47         .driver         = {
  48                 .name   = "pdc",
  49         },
  50 };
  51
  52 static int __init pdc_init(void)
  53 {
  54         return platform_driver_register(&pdc_driver);
  55 }
  56 arch_initcall(pdc_init);