| /* |
| * 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" |
| #include "sdhci.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"); |