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authorGrzegorz Jaszczyk <jaz@semihalf.com>2021-04-30 15:26:31 +0200
committerStefan Roese <sr@denx.de>2021-05-16 06:48:45 +0200
commit9c84159ce1c7c6410640de66f0d5e52af09a115e (patch)
treeb18323dcd5360590fbdb458b2c0a6ca74eb8bf5f
parent562f8d5b36e4d35365aa9a545e4d11b5c2557ec1 (diff)
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spi: kirkwood: prevent limiting speed to 0
After commit 1fe929ed497bcc8975be8d37383ebafd22b99dd2 ("spi: kirkwood: prevent configuring speed exceeding max controller freq") the spi frequency could be set to 0 on platform where spi-max-frequency is not defined (e.g. on armada-388-gp). Prevent limiting speed in mentioned cases. Signed-off-by: Grzegorz Jaszczyk <jaz@semihalf.com> Tested-by: Kostya Porotchkin <kostap@marvell.com> Reviewed-by: Marcin Wojtas <marcin@marvell.com> Reviewed-by: Kostya Porotchkin <kostap@marvell.com> Signed-off-by: Stefan Roese <sr@denx.de>
-rw-r--r--drivers/spi/kirkwood_spi.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/spi/kirkwood_spi.c b/drivers/spi/kirkwood_spi.c
index 063ed5f..bc5da0a 100644
--- a/drivers/spi/kirkwood_spi.c
+++ b/drivers/spi/kirkwood_spi.c
@@ -115,7 +115,7 @@ static int mvebu_spi_set_speed(struct udevice *bus, uint hz)
u32 data, divider;
unsigned int spr, sppr;
- if (hz > spi->max_hz) {
+ if (spi->max_hz && (hz > spi->max_hz)) {
debug("%s: limit speed to the max_hz of the bus %d\n",
__func__, spi->max_hz);
hz = spi->max_hz;