Merge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds
[pandora-kernel.git] / drivers / mmc / host / sdhci-of-hlwd.c
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 <X.Xie@freescale.com>
14  *          Anton Vorontsov <avorontsov@ru.mvista.com>
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>
23 #include <linux/mmc/host.h>
24 #include "sdhci-of.h"
25 #include "sdhci.h"
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
54 struct sdhci_of_data sdhci_hlwd = {
55         .quirks = SDHCI_QUIRK_32BIT_DMA_ADDR |
56                   SDHCI_QUIRK_32BIT_DMA_SIZE,
57         .ops = {
58                 .read_l = sdhci_be32bs_readl,
59                 .read_w = sdhci_be32bs_readw,
60                 .read_b = sdhci_be32bs_readb,
61                 .write_l = sdhci_hlwd_writel,
62                 .write_w = sdhci_hlwd_writew,
63                 .write_b = sdhci_hlwd_writeb,
64         },
65 };