[coreboot-gerrit] Change in coreboot[master]: soc/amd/common/spi: add and use define for last FIFO position

[Felix Held (Code Review)]

Felix Held has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/42076 )

Change subject: soc/amd/common/spi: add and use define for last FIFO position
......................................................................

soc/amd/common/spi: add and use define for last FIFO position

The existing define for SPI_FIFO_DEPTH looked a bit suspicious, but
turned out to be correct.

Change-Id: I91e65d922673f5c451a336ae013cb75f87a3fc98
Signed-off-by: Felix Held 
---
M src/soc/amd/common/block/include/amdblocks/spi.h
1 file changed, 2 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/76/42076/1

diff --git a/src/soc/amd/common/block/include/amdblocks/spi.h b/src/soc/amd/common/block/include/amdblocks/spi.h
index fec099d..6854a1a 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 @@
 #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 {
    /*