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| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2014-06-29 16:17:33 +0300 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2014-07-14 19:42:49 +0200 |
| commit | 1110495de926db4b21b9969da522e5270c67f115 (patch) | |
| tree | 04a04b6e797173c1b3639a4c4ecb90c544ab84ab /src/include/spi-generic.h | |
| parent | 77d1280d0c866a9f85e62f74c43fe8d021a4ff39 (diff) | |
SPI: Split writes using spi_crop_chunk()
SPI controllers in Intel and AMD bridges have a slightly different
restriction on how long transactions they can handle.
Change-Id: I3d149d4b7e7e9633482a153d5e380a86c553d871
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/6163
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Diffstat (limited to 'src/include/spi-generic.h')
| -rw-r--r-- | src/include/spi-generic.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/include/spi-generic.h b/src/include/spi-generic.h index 6c62de6d1d..3b10ae9f49 100644 --- a/src/include/spi-generic.h +++ b/src/include/spi-generic.h @@ -168,6 +168,8 @@ void spi_cs_deactivate(struct spi_slave *slave); */ void spi_set_speed(struct spi_slave *slave, uint32_t hz); +unsigned int spi_crop_chunk(unsigned int cmd_len, unsigned int buf_len); + /*----------------------------------------------------------------------- * Write 8 bits, then read 8 bits. * slave: The SPI slave we're communicating with |