diff options
| author | Nicolas Ferre <nicolas.ferre@atmel.com> | 2012-05-10 14:17:41 +0400 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@linux.intel.com> | 2012-05-15 07:17:18 +0400 |
| commit | 1dd1ea8eb46a71201943148cc0ed3182cd04e288 (patch) | |
| tree | 0d4c7f05f751d906aea6b0270956453bcd6520e5 /arch/arm | |
| parent | b409ebfb14a71b64e11b156dc82ede698480397e (diff) | |
| download | linux-1dd1ea8eb46a71201943148cc0ed3182cd04e288.tar.xz | |
dmaengine: at_hdmac: take maxburst from slave configuration
The maxburst/chunk size was taken from the private slave DMA data structure.
Use the common API provided by DMA_SLAVE_CONFIG to setup src/dst maxburst
values.
The ctrla field is not needed anymore in the slave private structure nor the
header constants that were located in an architecture specific directory.
The at91sam9g45_devices.c file that was using this platform data is also
modified to remove this now useless data.
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-at91/at91sam9g45_devices.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-at91/include/mach/at_hdmac.h | 21 |
2 files changed, 0 insertions, 22 deletions
diff --git a/arch/arm/mach-at91/at91sam9g45_devices.c b/arch/arm/mach-at91/at91sam9g45_devices.c index 698479f1e197..a9f03f26dc15 100644 --- a/arch/arm/mach-at91/at91sam9g45_devices.c +++ b/arch/arm/mach-at91/at91sam9g45_devices.c @@ -439,7 +439,6 @@ void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data) atslave->dma_dev = &at_hdmac_device.dev; atslave->cfg = ATC_FIFOCFG_HALFFIFO | ATC_SRC_H2SEL_HW | ATC_DST_H2SEL_HW; - atslave->ctrla = ATC_SCSIZE_16 | ATC_DCSIZE_16; if (mmc_id == 0) /* MCI0 */ atslave->cfg |= ATC_SRC_PER(AT_DMA_ID_MCI0) | ATC_DST_PER(AT_DMA_ID_MCI0); diff --git a/arch/arm/mach-at91/include/mach/at_hdmac.h b/arch/arm/mach-at91/include/mach/at_hdmac.h index 810a13e86245..cab0997be3de 100644 --- a/arch/arm/mach-at91/include/mach/at_hdmac.h +++ b/arch/arm/mach-at91/include/mach/at_hdmac.h @@ -27,12 +27,10 @@ struct at_dma_platform_data { * struct at_dma_slave - Controller-specific information about a slave * @dma_dev: required DMA master device * @cfg: Platform-specific initializer for the CFG register - * @ctrla: Platform-specific initializer for the CTRLA register */ struct at_dma_slave { struct device *dma_dev; u32 cfg; - u32 ctrla; }; @@ -59,24 +57,5 @@ struct at_dma_slave { #define ATC_FIFOCFG_HALFFIFO (0x1 << 28) #define ATC_FIFOCFG_ENOUGHSPACE (0x2 << 28) -/* Platform-configurable bits in CTRLA */ -#define ATC_SCSIZE_MASK (0x7 << 16) /* Source Chunk Transfer Size */ -#define ATC_SCSIZE_1 (0x0 << 16) -#define ATC_SCSIZE_4 (0x1 << 16) -#define ATC_SCSIZE_8 (0x2 << 16) -#define ATC_SCSIZE_16 (0x3 << 16) -#define ATC_SCSIZE_32 (0x4 << 16) -#define ATC_SCSIZE_64 (0x5 << 16) -#define ATC_SCSIZE_128 (0x6 << 16) -#define ATC_SCSIZE_256 (0x7 << 16) -#define ATC_DCSIZE_MASK (0x7 << 20) /* Destination Chunk Transfer Size */ -#define ATC_DCSIZE_1 (0x0 << 20) -#define ATC_DCSIZE_4 (0x1 << 20) -#define ATC_DCSIZE_8 (0x2 << 20) -#define ATC_DCSIZE_16 (0x3 << 20) -#define ATC_DCSIZE_32 (0x4 << 20) -#define ATC_DCSIZE_64 (0x5 << 20) -#define ATC_DCSIZE_128 (0x6 << 20) -#define ATC_DCSIZE_256 (0x7 << 20) #endif /* AT_HDMAC_H */ |