f0de836923
There are a couple of problems left from the sdhci pltfm and OF consolidation changes. * When building more than one sdhci-pltfm based drivers in the same image, linker will give multiple definition error on the sdhci-pltfm helper functions. For example right now, building sdhci-of-esdhc and sdhci-of-hlwd together is a valid combination from Kconfig view. * With the current build method, there is error with building the drivers as module, but module installation fails with modprobe. The patch fixes above problems by changing sdhci-pltfm into a module. To avoid EXPORT_SYMBOL on so many big endian IO accessors, it moves these accessors into sdhci-pltfm.h as the 'static inline' functions. As a result, sdhci.h needs to be included in sdhci-pltfm.h, and in turn can be removed from individual drivers which already include sdhci-pltfm.h. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
112 lines
2.8 KiB
C
112 lines
2.8 KiB
C
/*
|
|
* 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-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 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,
|
|
};
|
|
|
|
static struct sdhci_pltfm_data sdhci_hlwd_pdata = {
|
|
.quirks = SDHCI_QUIRK_32BIT_DMA_ADDR |
|
|
SDHCI_QUIRK_32BIT_DMA_SIZE,
|
|
.ops = &sdhci_hlwd_ops,
|
|
};
|
|
|
|
static int __devinit sdhci_hlwd_probe(struct platform_device *pdev)
|
|
{
|
|
return sdhci_pltfm_register(pdev, &sdhci_hlwd_pdata);
|
|
}
|
|
|
|
static int __devexit 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",
|
|
.owner = THIS_MODULE,
|
|
.of_match_table = sdhci_hlwd_of_match,
|
|
},
|
|
.probe = sdhci_hlwd_probe,
|
|
.remove = __devexit_p(sdhci_hlwd_remove),
|
|
#ifdef CONFIG_PM
|
|
.suspend = sdhci_pltfm_suspend,
|
|
.resume = sdhci_pltfm_resume,
|
|
#endif
|
|
};
|
|
|
|
static int __init sdhci_hlwd_init(void)
|
|
{
|
|
return platform_driver_register(&sdhci_hlwd_driver);
|
|
}
|
|
module_init(sdhci_hlwd_init);
|
|
|
|
static void __exit sdhci_hlwd_exit(void)
|
|
{
|
|
platform_driver_unregister(&sdhci_hlwd_driver);
|
|
}
|
|
module_exit(sdhci_hlwd_exit);
|
|
|
|
MODULE_DESCRIPTION("Nintendo Wii SDHCI OF driver");
|
|
MODULE_AUTHOR("The GameCube Linux Team, Albert Herranz");
|
|
MODULE_LICENSE("GPL v2");
|