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spi: octeon_spi: Use a fixed 100MHz input clock on Octeon TX2

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Octeon TX2 sets the TB100_EN bit in the config register. We need to use
a fixed 100MHz clock for this as well to work properly.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Aaron Williams <awilliams@marvell.com>
Cc: Suneel Garapati <sgarapati@marvell.com>
Cc: Chandrakala Chavva <cchavva@marvell.com>
Cc: Jagan Teki <jagan@amarulasolutions.com>
This commit is contained in:
Stefan Roese 2020-08-05 15:07:30 +02:00
parent 9dc6aef8c9
commit 8a35094faa
1 changed files with 4 additions and 1 deletions
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5
drivers/spi/octeon_spi.c
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@ -519,7 +519,10 @@ static int octeon_spi_set_speed(struct udevice *bus, uint max_hz)
if (max_hz > OCTEON_SPI_MAX_CLOCK_HZ)
max_hz = OCTEON_SPI_MAX_CLOCK_HZ;
clk_rate = clk_get_rate(&priv->clk);
if (device_is_compatible(bus, "cavium,thunderx-spi"))
clk_rate = 100000000;
else
clk_rate = clk_get_rate(&priv->clk);
if (IS_ERR_VALUE(clk_rate))
return -EINVAL;