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| author | Simon Glass <sjg@chromium.org> | 2013-03-11 06:08:05 +0000 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2013-03-19 08:45:36 -0700 |
| commit | 0c456cee952f3fa5ae6f5c42f960eeaa39140b62 (patch) | |
| tree | bf065ddb5bef5467ab1f0bebe38bd9d5a9951c66 /include/spi.h | |
| parent | 1853030e2164c849c09f1ba051d243265e2591ec (diff) | |
| download | u-boot-imx-0c456cee952f3fa5ae6f5c42f960eeaa39140b62.zip u-boot-imx-0c456cee952f3fa5ae6f5c42f960eeaa39140b62.tar.gz u-boot-imx-0c456cee952f3fa5ae6f5c42f960eeaa39140b62.tar.bz2 | |
spi: Add parameter for maximum write size
Some SPI controllers (e.g. Intel ICH) have a limit on the number of SPI
bytes that can be written at a time. Add this as a parameter so that
clients of the SPI interface can respect this value.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'include/spi.h')
| -rw-r--r-- | include/spi.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/spi.h b/include/spi.h index ebc9652..3fe2e1e 100644 --- a/include/spi.h +++ b/include/spi.h @@ -49,10 +49,13 @@ * * bus: ID of the bus that the slave is attached to. * cs: ID of the chip select connected to the slave. + * max_write_size: If non-zero, the maximum number of bytes which can + * be written at once, excluding command bytes. */ struct spi_slave { unsigned int bus; unsigned int cs; + unsigned int max_write_size; }; /*----------------------------------------------------------------------- |