forked from luck/tmp_suning_uos_patched
sdhci-of: add support for the wii sdhci controller
Add support for the Secure Digital Host Controller Interface found on the "Hollywood" chipset of the Nintendo Wii video game console. Signed-off-by: Albert Herranz <albert_herranz@yahoo.es> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
parent
7657c3a7d4
commit
1144ab5d4b
|
@ -55,7 +55,7 @@ config MMC_SDHCI_BIG_ENDIAN_32BIT_BYTE_SWAPPER
|
|||
has the effect of scrambling the addresses and formats of data
|
||||
accessed in sizes other than the datum size.
|
||||
|
||||
This is the case for the Freescale eSDHC.
|
||||
This is the case for the Freescale eSDHC and Nintendo Wii SDHCI.
|
||||
|
||||
config MMC_SDHCI_PCI
|
||||
tristate "SDHCI support on PCI bus"
|
||||
|
@ -103,6 +103,17 @@ config MMC_SDHCI_OF_ESDHC
|
|||
|
||||
If unsure, say N.
|
||||
|
||||
config MMC_SDHCI_OF_HLWD
|
||||
bool "SDHCI OF support for the Nintendo Wii SDHCI controllers"
|
||||
depends on MMC_SDHCI_OF
|
||||
select MMC_SDHCI_BIG_ENDIAN_32BIT_BYTE_SWAPPER
|
||||
help
|
||||
This selects the Secure Digital Host Controller Interface (SDHCI)
|
||||
found in the "Hollywood" chipset of the Nintendo Wii video game
|
||||
console.
|
||||
|
||||
If unsure, say N.
|
||||
|
||||
config MMC_SDHCI_PLTFM
|
||||
tristate "SDHCI support on the platform specific bus"
|
||||
depends on MMC_SDHCI
|
||||
|
|
|
@ -39,6 +39,7 @@ obj-$(CONFIG_SDH_BFIN) += bfin_sdh.o
|
|||
obj-$(CONFIG_MMC_SDHCI_OF) += sdhci-of.o
|
||||
sdhci-of-y := sdhci-of-core.o
|
||||
sdhci-of-$(CONFIG_MMC_SDHCI_OF_ESDHC) += sdhci-of-esdhc.o
|
||||
sdhci-of-$(CONFIG_MMC_SDHCI_OF_HLWD) += sdhci-of-hlwd.o
|
||||
|
||||
ifeq ($(CONFIG_CB710_DEBUG),y)
|
||||
CFLAGS-cb710-mmc += -DDEBUG
|
||||
|
|
|
@ -195,6 +195,9 @@ static const struct of_device_id sdhci_of_match[] = {
|
|||
{ .compatible = "fsl,mpc8379-esdhc", .data = &sdhci_esdhc, },
|
||||
{ .compatible = "fsl,mpc8536-esdhc", .data = &sdhci_esdhc, },
|
||||
{ .compatible = "fsl,esdhc", .data = &sdhci_esdhc, },
|
||||
#endif
|
||||
#ifdef CONFIG_MMC_SDHCI_OF_HLWD
|
||||
{ .compatible = "nintendo,hollywood-sdhci", .data = &sdhci_hlwd, },
|
||||
#endif
|
||||
{ .compatible = "generic-sdhci", },
|
||||
{},
|
||||
|
|
65
drivers/mmc/host/sdhci-of-hlwd.c
Normal file
65
drivers/mmc/host/sdhci-of-hlwd.c
Normal file
|
@ -0,0 +1,65 @@
|
|||
/*
|
||||
* 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-of.h"
|
||||
#include "sdhci.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);
|
||||
}
|
||||
|
||||
struct sdhci_of_data sdhci_hlwd = {
|
||||
.quirks = SDHCI_QUIRK_32BIT_DMA_ADDR |
|
||||
SDHCI_QUIRK_32BIT_DMA_SIZE,
|
||||
.ops = {
|
||||
.readl = sdhci_be32bs_readl,
|
||||
.readw = sdhci_be32bs_readw,
|
||||
.readb = sdhci_be32bs_readb,
|
||||
.writel = sdhci_hlwd_writel,
|
||||
.writew = sdhci_hlwd_writew,
|
||||
.writeb = sdhci_hlwd_writeb,
|
||||
},
|
||||
};
|
|
@ -37,5 +37,6 @@ extern void sdhci_be32bs_writew(struct sdhci_host *host, u16 val, int reg);
|
|||
extern void sdhci_be32bs_writeb(struct sdhci_host *host, u8 val, int reg);
|
||||
|
||||
extern struct sdhci_of_data sdhci_esdhc;
|
||||
extern struct sdhci_of_data sdhci_hlwd;
|
||||
|
||||
#endif /* __SDHCI_OF_H */
|
||||
|
|
Loading…
Reference in New Issue
Block a user