/* * 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/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 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 struct sdhci_pltfm_data sdhci_hlwd_pdata = { .quirks = SDHCI_QUIRK_32BIT_DMA_ADDR | SDHCI_QUIRK_32BIT_DMA_SIZE, .ops = &sdhci_hlwd_ops, }; static int __devinit sdhci_hlwd_probe(struct platform_device *pdev) { return sdhci_pltfm_register(pdev, &sdhci_hlwd_pdata); } static int __devexit 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, }, .probe = sdhci_hlwd_probe, .remove = __devexit_p(sdhci_hlwd_remove), #ifdef CONFIG_PM .suspend = sdhci_pltfm_suspend, .resume = sdhci_pltfm_resume, #endif }; static int __init sdhci_hlwd_init(void) { return platform_driver_register(&sdhci_hlwd_driver); } module_init(sdhci_hlwd_init); static void __exit sdhci_hlwd_exit(void) { platform_driver_unregister(&sdhci_hlwd_driver); } module_exit(sdhci_hlwd_exit); MODULE_DESCRIPTION("Nintendo Wii SDHCI OF driver"); MODULE_AUTHOR("The GameCube Linux Team, Albert Herranz"); MODULE_LICENSE("GPL v2");