[linux.git] / drivers / mmc / host / sdhci-of-hlwd.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 <[email protected]>
 *	    Anton Vorontsov <[email protected]>
 *
 * 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",
		.owner = THIS_MODULE,
		.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");
Commit	Line	Data
1144ab5d AH	1	/*
	2	* drivers/mmc/host/sdhci-of-hlwd.c
	3	*
	4	* Nintendo Wii Secure Digital Host Controller Interface.
	5	* Copyright (C) 2009 The GameCube Linux Team
	6	* Copyright (C) 2009 Albert Herranz
	7	*
	8	* Based on sdhci-of-esdhc.c
	9	*
	10	* Copyright (c) 2007 Freescale Semiconductor, Inc.
	11	* Copyright (c) 2009 MontaVista Software, Inc.
	12	*
	13	* Authors: Xiaobo Xie <[email protected]>
	14	* Anton Vorontsov <[email protected]>
	15	*
	16	* This program is free software; you can redistribute it and/or modify
	17	* it under the terms of the GNU General Public License as published by
	18	* the Free Software Foundation; either version 2 of the License, or (at
	19	* your option) any later version.
	20	*/
	21
	22	#include <linux/delay.h>
88b47679	23	#include <linux/module.h>
1144ab5d	24	#include <linux/mmc/host.h>
38576af1	25	#include "sdhci-pltfm.h"
1144ab5d AH	26
	27	/*
	28	* Ops and quirks for the Nintendo Wii SDHCI controllers.
	29	*/
	30
	31	/*
	32	* We need a small delay after each write, or things go horribly wrong.
	33	*/
	34	#define SDHCI_HLWD_WRITE_DELAY 5 /* usecs */
	35
	36	static void sdhci_hlwd_writel(struct sdhci_host *host, u32 val, int reg)
	37	{
	38	sdhci_be32bs_writel(host, val, reg);
	39	udelay(SDHCI_HLWD_WRITE_DELAY);
	40	}
	41
	42	static void sdhci_hlwd_writew(struct sdhci_host *host, u16 val, int reg)
	43	{
	44	sdhci_be32bs_writew(host, val, reg);
	45	udelay(SDHCI_HLWD_WRITE_DELAY);
	46	}
	47
	48	static void sdhci_hlwd_writeb(struct sdhci_host *host, u8 val, int reg)
	49	{
	50	sdhci_be32bs_writeb(host, val, reg);
	51	udelay(SDHCI_HLWD_WRITE_DELAY);
	52	}
	53
c915568d	54	static const struct sdhci_ops sdhci_hlwd_ops = {
e307148f SG	55	.read_l = sdhci_be32bs_readl,
	56	.read_w = sdhci_be32bs_readw,
	57	.read_b = sdhci_be32bs_readb,
	58	.write_l = sdhci_hlwd_writel,
	59	.write_w = sdhci_hlwd_writew,
	60	.write_b = sdhci_hlwd_writeb,
1771059c	61	.set_clock = sdhci_set_clock,
2317f56c	62	.set_bus_width = sdhci_set_bus_width,
03231f9b	63	.reset = sdhci_reset,
96d7b78c	64	.set_uhs_signaling = sdhci_set_uhs_signaling,
e307148f SG	65	};
e307148f SG	66
1db5eebf	67	static const struct sdhci_pltfm_data sdhci_hlwd_pdata = {
1144ab5d AH	68	.quirks = SDHCI_QUIRK_32BIT_DMA_ADDR \|
1144ab5d AH	69	SDHCI_QUIRK_32BIT_DMA_SIZE,
e307148f	70	.ops = &sdhci_hlwd_ops,
1144ab5d	71	};
38576af1	72
c3be1efd	73	static int sdhci_hlwd_probe(struct platform_device *pdev)
38576af1	74	{
0e748234	75	return sdhci_pltfm_register(pdev, &sdhci_hlwd_pdata, 0);
38576af1 SG	76	}
38576af1 SG	77
6e0ee714	78	static int sdhci_hlwd_remove(struct platform_device *pdev)
38576af1 SG	79	{
	80	return sdhci_pltfm_unregister(pdev);
	81	}
	82
	83	static const struct of_device_id sdhci_hlwd_of_match[] = {
	84	{ .compatible = "nintendo,hollywood-sdhci" },
	85	{ }
	86	};
	87	MODULE_DEVICE_TABLE(of, sdhci_hlwd_of_match);
	88
	89	static struct platform_driver sdhci_hlwd_driver = {
	90	.driver = {
	91	.name = "sdhci-hlwd",
	92	.owner = THIS_MODULE,
	93	.of_match_table = sdhci_hlwd_of_match,
29495aa0	94	.pm = SDHCI_PLTFM_PMOPS,
38576af1 SG	95	},
38576af1 SG	96	.probe = sdhci_hlwd_probe,
0433c143	97	.remove = sdhci_hlwd_remove,
38576af1 SG	98	};
38576af1 SG	99
d1f81a64	100	module_platform_driver(sdhci_hlwd_driver);
38576af1 SG	101
	102	MODULE_DESCRIPTION("Nintendo Wii SDHCI OF driver");
	103	MODULE_AUTHOR("The GameCube Linux Team, Albert Herranz");
	104	MODULE_LICENSE("GPL v2");