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Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
94 lines
2.4 KiB
C
94 lines
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* drivers/mmc/host/sdhci-of-hlwd.c
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*
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* Nintendo Wii Secure Digital Host Controller Interface.
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* Copyright (C) 2009 The GameCube Linux Team
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* Copyright (C) 2009 Albert Herranz
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*
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* Based on sdhci-of-esdhc.c
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*
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* Copyright (c) 2007 Freescale Semiconductor, Inc.
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* Copyright (c) 2009 MontaVista Software, Inc.
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*
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* Authors: Xiaobo Xie <X.Xie@freescale.com>
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* Anton Vorontsov <avorontsov@ru.mvista.com>
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*/
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#include <linux/delay.h>
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#include <linux/module.h>
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#include <linux/mmc/host.h>
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#include "sdhci-pltfm.h"
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/*
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* Ops and quirks for the Nintendo Wii SDHCI controllers.
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*/
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/*
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* We need a small delay after each write, or things go horribly wrong.
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*/
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#define SDHCI_HLWD_WRITE_DELAY 5 /* usecs */
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static void sdhci_hlwd_writel(struct sdhci_host *host, u32 val, int reg)
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{
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sdhci_be32bs_writel(host, val, reg);
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udelay(SDHCI_HLWD_WRITE_DELAY);
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}
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static void sdhci_hlwd_writew(struct sdhci_host *host, u16 val, int reg)
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{
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sdhci_be32bs_writew(host, val, reg);
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udelay(SDHCI_HLWD_WRITE_DELAY);
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}
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static void sdhci_hlwd_writeb(struct sdhci_host *host, u8 val, int reg)
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{
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sdhci_be32bs_writeb(host, val, reg);
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udelay(SDHCI_HLWD_WRITE_DELAY);
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}
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static const struct sdhci_ops sdhci_hlwd_ops = {
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.read_l = sdhci_be32bs_readl,
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.read_w = sdhci_be32bs_readw,
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.read_b = sdhci_be32bs_readb,
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.write_l = sdhci_hlwd_writel,
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.write_w = sdhci_hlwd_writew,
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.write_b = sdhci_hlwd_writeb,
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.set_clock = sdhci_set_clock,
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.set_bus_width = sdhci_set_bus_width,
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.reset = sdhci_reset,
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.set_uhs_signaling = sdhci_set_uhs_signaling,
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};
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static const struct sdhci_pltfm_data sdhci_hlwd_pdata = {
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.quirks = SDHCI_QUIRK_32BIT_DMA_ADDR |
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SDHCI_QUIRK_32BIT_DMA_SIZE,
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.ops = &sdhci_hlwd_ops,
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};
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static int sdhci_hlwd_probe(struct platform_device *pdev)
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{
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return sdhci_pltfm_register(pdev, &sdhci_hlwd_pdata, 0);
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}
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static const struct of_device_id sdhci_hlwd_of_match[] = {
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{ .compatible = "nintendo,hollywood-sdhci" },
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{ }
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};
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MODULE_DEVICE_TABLE(of, sdhci_hlwd_of_match);
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static struct platform_driver sdhci_hlwd_driver = {
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.driver = {
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.name = "sdhci-hlwd",
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.of_match_table = sdhci_hlwd_of_match,
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.pm = &sdhci_pltfm_pmops,
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},
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.probe = sdhci_hlwd_probe,
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.remove = sdhci_pltfm_unregister,
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};
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module_platform_driver(sdhci_hlwd_driver);
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MODULE_DESCRIPTION("Nintendo Wii SDHCI OF driver");
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MODULE_AUTHOR("The GameCube Linux Team, Albert Herranz");
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MODULE_LICENSE("GPL v2");
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