text: /*
   * drivers/mmc/host/sdhci-of-hlwd.c
   *
   * Nintendo Wii Secure Digital Host Controller Interface.
   * Copyright (C) 2009 The GameCube Linux Team
   * Copyright (C) 2009 Albert Herranz
   *
   * Based on sdhci-of-esdhc.c
   *
   * Copyright (c) 2007 Freescale Semiconductor, Inc.
   * Copyright (c) 2009 MontaVista Software, Inc.
   *
   * Authors: Xiaobo Xie <X.Xie@freescale.com>
   *	    Anton Vorontsov <avorontsov@ru.mvista.com>
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; either version 2 of the License, or (at
   * your option) any later version.
   */
  
  #include <linux/delay.h>
  #include <linux/module.h>
  #include <linux/mmc/host.h>
  #include "sdhci-pltfm.h"
  
  /*
   * Ops and quirks for the Nintendo Wii SDHCI controllers.
   */
  
  /*
   * We need a small delay after each write, or things go horribly wrong.
   */
  #define SDHCI_HLWD_WRITE_DELAY	5 /* usecs */
  
  static void sdhci_hlwd_writel(struct sdhci_host *host, u32 val, int reg)
  {
  	sdhci_be32bs_writel(host, val, reg);
  	udelay(SDHCI_HLWD_WRITE_DELAY);
  }
  
  static void sdhci_hlwd_writew(struct sdhci_host *host, u16 val, int reg)
  {
  	sdhci_be32bs_writew(host, val, reg);
  	udelay(SDHCI_HLWD_WRITE_DELAY);
  }
  
  static void sdhci_hlwd_writeb(struct sdhci_host *host, u8 val, int reg)
  {
  	sdhci_be32bs_writeb(host, val, reg);
  	udelay(SDHCI_HLWD_WRITE_DELAY);
  }
  
  static const struct sdhci_ops sdhci_hlwd_ops = {
  	.read_l = sdhci_be32bs_readl,
  	.read_w = sdhci_be32bs_readw,
  	.read_b = sdhci_be32bs_readb,
  	.write_l = sdhci_hlwd_writel,
  	.write_w = sdhci_hlwd_writew,
  	.write_b = sdhci_hlwd_writeb,
  };
  
  static const struct sdhci_pltfm_data sdhci_hlwd_pdata = {
  	.quirks = SDHCI_QUIRK_32BIT_DMA_ADDR |
  		  SDHCI_QUIRK_32BIT_DMA_SIZE,
  	.ops = &sdhci_hlwd_ops,
  };
  
  static int sdhci_hlwd_probe(struct platform_device *pdev)
  {
  	return sdhci_pltfm_register(pdev, &sdhci_hlwd_pdata, 0);
  }
  
  static int sdhci_hlwd_remove(struct platform_device *pdev)
  {
  	return sdhci_pltfm_unregister(pdev);
  }
  
  static const struct of_device_id sdhci_hlwd_of_match[] = {
  	{ .compatible = "nintendo,hollywood-sdhci" },
  	{ }
  };
  MODULE_DEVICE_TABLE(of, sdhci_hlwd_of_match);
  
  static struct platform_driver sdhci_hlwd_driver = {
  	.driver = {
  		.name = "sdhci-hlwd",
  		.owner = THIS_MODULE,
  		.of_match_table = sdhci_hlwd_of_match,
  		.pm = SDHCI_PLTFM_PMOPS,
  	},
  	.probe = sdhci_hlwd_probe,
  	.remove = sdhci_hlwd_remove,
  };
  
  module_platform_driver(sdhci_hlwd_driver);
  
  MODULE_DESCRIPTION("Nintendo Wii SDHCI OF driver");
  MODULE_AUTHOR("The GameCube Linux Team, Albert Herranz");
  MODULE_LICENSE("GPL v2");
  