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/*
* 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-of.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);
}
struct sdhci_of_data sdhci_hlwd = {
.quirks = SDHCI_QUIRK_32BIT_DMA_ADDR |
SDHCI_QUIRK_32BIT_DMA_SIZE,
.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,
},
};
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