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Fixed MTP to work with TWRP

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awab228 2018-06-19 23:16:04 +02:00
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103
drivers/mmc/host/sdhci-of-hlwd.c Normal file
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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/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,
.set_clock = sdhci_set_clock,
.set_bus_width = sdhci_set_bus_width,
.reset = sdhci_reset,
.set_uhs_signaling = sdhci_set_uhs_signaling,
};
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",
.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");