0e74823429
Add a param to allow users of sdhci_pltfm to allocate private space in calls to sdhci_pltfm_init+sdhci_pltfm_register. This is implemented in the same way as sdhci does for its users. None of the users have been migrated yet and are passing in zero to retain their private allocation. - todo: migrate clients to using allocation this way - todo: remove priv variable once migration is complete Also removed unused variable in sdhci_pltfm_init fn Signed-off-by: Christian Daudt <csd@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
101 lines
2.6 KiB
C
101 lines
2.6 KiB
C
/*
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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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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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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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};
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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 int sdhci_hlwd_remove(struct platform_device *pdev)
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{
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return sdhci_pltfm_unregister(pdev);
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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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.owner = THIS_MODULE,
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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_hlwd_remove,
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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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