projects / linux-2.6-block.git / blame
| 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 <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 | ||
| e307148f SG |
54 | static struct sdhci_ops sdhci_hlwd_ops = { |
| 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, | |
| 61 | }; | |
| 62 | ||
| 63 | struct sdhci_pltfm_data sdhci_hlwd_pdata = { | |
| 1144ab5d AH |
64 | .quirks = SDHCI_QUIRK_32BIT_DMA_ADDR | |
| 65 | SDHCI_QUIRK_32BIT_DMA_SIZE, | |
| e307148f | 66 | .ops = &sdhci_hlwd_ops, |
| 1144ab5d | 67 | }; |