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mxs: spi: Remove CONFIG_MXS_SPI_DMA_ENABLE

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The CONFIG_MXS_SPI_DMA_ENABLE is no longer relevant as the SPI DMA
has proven to work correctly. Remove this configuration option.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Stefano Babic <sbabic@denx.de>
This commit is contained in:
Marek Vasut 2013-02-23 02:43:00 +00:00 committed by Stefano Babic
parent c96e78ccfe
commit d3f26a2700
3 changed files with 0 additions and 18 deletions
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16
drivers/spi/mxs_spi.c
View File

@ -40,17 +40,6 @@
#define MXSSSP_SMALL_TRANSFER 512
/*
* CONFIG_MXS_SPI_DMA_ENABLE: Experimental mixed PIO/DMA support for MXS SPI
* host. Use with utmost caution!
*
* Enabling this is not yet recommended since this
* still doesn't support transfers to/from unaligned
* addresses. Therefore this driver will not work
* for example with saving environment. This is
* caused by DMA alignment constraints on MXS.
*/
struct mxs_spi_slave {
struct spi_slave slave;
uint32_t max_khz;
@ -347,12 +336,7 @@ int spi_xfer(struct spi_slave *slave, unsigned int bitlen,
char dummy;
int write = 0;
char *data = NULL;
#ifdef CONFIG_MXS_SPI_DMA_ENABLE
int dma = 1;
#else
int dma = 0;
#endif
if (bitlen == 0) {
if (flags & SPI_XFER_END) {

1
include/configs/m28evk.h
View File

@ -244,7 +244,6 @@
#ifdef CONFIG_CMD_SPI
#define CONFIG_HARD_SPI
#define CONFIG_MXS_SPI
#define CONFIG_MXS_SPI_DMA_ENABLE
#define CONFIG_SPI_HALF_DUPLEX
#define CONFIG_DEFAULT_SPI_BUS 2
#define CONFIG_DEFAULT_SPI_CS 0

1
include/configs/mx28evk.h
View File

@ -202,7 +202,6 @@
#ifdef CONFIG_CMD_SPI
#define CONFIG_HARD_SPI
#define CONFIG_MXS_SPI
#define CONFIG_MXS_SPI_DMA_ENABLE
#define CONFIG_SPI_HALF_DUPLEX
#define CONFIG_DEFAULT_SPI_BUS 2
#define CONFIG_DEFAULT_SPI_MODE SPI_MODE_0