drivers: spi: sifive: Fix bug with checking if tx fifo is full

The check of the SF_TXDATA_FULL flag is only done on the register address and not on the actual register content. Signed-off-by: Tobias Svehagen <[email protected]>
benys · Apr 23, 2020 · 688f506 · 688f506
1 parent 1a4cd71
commit 688f506
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/drivers/spi/spi_sifive.c b/drivers/spi/spi_sifive.c
@@ -95,7 +95,7 @@ int spi_config(struct device *dev, u32_t frequency, u16_t operation)
 
 void spi_sifive_send(struct device *dev, u16_t frame)
 {
-	while (SPI_REG(dev, REG_TXDATA) & SF_TXDATA_FULL) {
+	while (sys_read32(SPI_REG(dev, REG_TXDATA)) & SF_TXDATA_FULL) {
 	}
 
 	sys_write32((u32_t) frame, SPI_REG(dev, REG_TXDATA));