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-rw-r--r--src/soc/amd/common/block/include/amdblocks/spi.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/soc/amd/common/block/include/amdblocks/spi.h b/src/soc/amd/common/block/include/amdblocks/spi.h
index fec099dc6a..d226e0c05d 100644
--- a/src/soc/amd/common/block/include/amdblocks/spi.h
+++ b/src/soc/amd/common/block/include/amdblocks/spi.h
@@ -55,7 +55,8 @@ enum spi100_speed {
#define SPI_RD4DW_EN_HOST BIT(15)
#define SPI_FIFO 0x80
-#define SPI_FIFO_DEPTH (0xc7 - SPI_FIFO)
+#define SPI_FIFO_LAST_BYTE 0xc7
+#define SPI_FIFO_DEPTH (SPI_FIFO_LAST_BYTE - SPI_FIFO)
struct spi_config {
/*