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| author | Sascha Hauer <s.hauer@pengutronix.de> | 2015-08-31 16:55:52 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2015-08-31 17:12:28 +0200 |
| commit | cd4df8f82b77e2599a65b81cfa06f3bc58399e15 (patch) | |
| tree | 0f61c94c195d173d757d9b354863ce76f94cd1e5 /include/spi | |
| parent | 311f02fbe4f00cafbb365ef76b8ad2231a2934cd (diff) | |
| download | barebox-cd4df8f82b77e2599a65b81cfa06f3bc58399e15.tar.gz barebox-cd4df8f82b77e2599a65b81cfa06f3bc58399e15.tar.xz | |
spi: i.MX: use start mode control bit
The i.MX SPI controller in version 2.3 can immediately start a transfer
when the txfifo is written to. In this mode we no longer have to trigger
the transfer with the xch bit which makes the code a bit simpler.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'include/spi')
| -rw-r--r-- | include/spi/imx-spi.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/spi/imx-spi.h b/include/spi/imx-spi.h index 560b092bd2..5c89634770 100644 --- a/include/spi/imx-spi.h +++ b/include/spi/imx-spi.h @@ -61,6 +61,7 @@ #define CSPI_2_3_CTRL 0x08 #define CSPI_2_3_CTRL_ENABLE (1 << 0) #define CSPI_2_3_CTRL_XCH (1 << 2) +#define CSPI_2_3_CTRL_SMC (1 << 3) #define CSPI_2_3_CTRL_MODE(cs) (1 << ((cs) + 4)) #define CSPI_2_3_CTRL_POSTDIV_OFFSET 8 #define CSPI_2_3_CTRL_PREDIV_OFFSET 12 |