1/* 2 * drivers/mmc/host/sdhci-of-hlwd.c 3 * 4 * Nintendo Wii Secure Digital Host Controller Interface. 5 * Copyright (C) 2009 The GameCube Linux Team 6 * Copyright (C) 2009 Albert Herranz 7 * 8 * Based on sdhci-of-esdhc.c 9 * 10 * Copyright (c) 2007 Freescale Semiconductor, Inc. 11 * Copyright (c) 2009 MontaVista Software, Inc. 12 * 13 * Authors: Xiaobo Xie <X.Xie@freescale.com> 14 * Anton Vorontsov <avorontsov@ru.mvista.com> 15 * 16 * This program is free software; you can redistribute it and/or modify 17 * it under the terms of the GNU General Public License as published by 18 * the Free Software Foundation; either version 2 of the License, or (at 19 * your option) any later version. 20 */ 21 22#include <linux/delay.h> 23#include <linux/mmc/host.h> 24#include "sdhci-of.h" 25#include "sdhci.h" 26 27/* 28 * Ops and quirks for the Nintendo Wii SDHCI controllers. 29 */ 30 31/* 32 * We need a small delay after each write, or things go horribly wrong. 33 */ 34#define SDHCI_HLWD_WRITE_DELAY 5 /* usecs */ 35 36static void sdhci_hlwd_writel(struct sdhci_host *host, u32 val, int reg) 37{ 38 sdhci_be32bs_writel(host, val, reg); 39 udelay(SDHCI_HLWD_WRITE_DELAY); 40} 41 42static void sdhci_hlwd_writew(struct sdhci_host *host, u16 val, int reg) 43{ 44 sdhci_be32bs_writew(host, val, reg); 45 udelay(SDHCI_HLWD_WRITE_DELAY); 46} 47 48static void sdhci_hlwd_writeb(struct sdhci_host *host, u8 val, int reg) 49{ 50 sdhci_be32bs_writeb(host, val, reg); 51 udelay(SDHCI_HLWD_WRITE_DELAY); 52} 53 54struct sdhci_of_data sdhci_hlwd = { 55 .quirks = SDHCI_QUIRK_32BIT_DMA_ADDR | 56 SDHCI_QUIRK_32BIT_DMA_SIZE, 57 .ops = { 58 .read_l = sdhci_be32bs_readl, 59 .read_w = sdhci_be32bs_readw, 60 .read_b = sdhci_be32bs_readb, 61 .write_l = sdhci_hlwd_writel, 62 .write_w = sdhci_hlwd_writew, 63 .write_b = sdhci_hlwd_writeb, 64 }, 65}; 66