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[PATCH] MMC: wbsd update 

Updates to the wbsd driver.
                                                                                
* Fix to handle DAT3 card detection.
* Fixed bug which could cause large writes to stall in FIFO mode.
* Plug 'n Play support. In most cases you need ACPI PNP for this to work.
* Uses generic DMA API (ISA dependency removed).
hifive-unleashed-5.1
Pierre Ossman 2005-05-08 19:35:27 +01:00 committed by Russell King
parent 88d7bd8cb9
commit 85bcc13072
3 changed files with 598 additions and 240 deletions
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2
drivers/mmc/Kconfig
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@ -51,7 +51,7 @@ config MMC_PXA
config MMC_WBSD
tristate "Winbond W83L51xD SD/MMC Card Interface support"
depends on MMC && ISA && ISA_DMA_API
depends on MMC && ISA_DMA_API
help
This selects the Winbond(R) W83L51xD Secure digital and
Multimedia card Interface.

824
drivers/mmc/wbsd.c
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File diff suppressed because it is too large Load Diff

12
drivers/mmc/wbsd.h
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@ -35,6 +35,12 @@ const int valid_ids[] = {
#define DEVICE_SD 0x03
#define WBSD_PINS_DAT3_HI 0x20
#define WBSD_PINS_DAT3_OUT 0x10
#define WBSD_PINS_GP11_HI 0x04
#define WBSD_PINS_DETECT_GP11 0x02
#define WBSD_PINS_DETECT_DAT3 0x01
#define WBSD_CMDR 0x00
#define WBSD_DFR 0x01
#define WBSD_EIR 0x02
@ -133,6 +139,7 @@ const int valid_ids[] = {
#define WBSD_CRC_OK 0x05 /* S010E (00101) */
#define WBSD_CRC_FAIL 0x0B /* S101E (01011) */
#define WBSD_DMA_SIZE 65536
struct wbsd_host
{
@ -140,6 +147,11 @@ struct wbsd_host
spinlock_t lock; /* Mutex */
int flags; /* Driver states */
#define WBSD_FCARD_PRESENT (1<<0) /* Card is present */
#define WBSD_FIGNORE_DETECT (1<<1) /* Ignore card detection */
struct mmc_request* mrq; /* Current request */
u8 isr; /* Accumulated ISR */