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-rw-r--r--drivers/fsi/fsi-master-ast-cf.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/fsi/fsi-master-ast-cf.c b/drivers/fsi/fsi-master-ast-cf.c
index c4a35579bfdc..b59abcf3ee32 100644
--- a/drivers/fsi/fsi-master-ast-cf.c
+++ b/drivers/fsi/fsi-master-ast-cf.c
@@ -377,8 +377,8 @@ static int send_request(struct fsi_master_acf *master, struct fsi_msg *cmd,
static int read_copro_response(struct fsi_master_acf *master, uint8_t size,
uint32_t *response, u8 *tag)
{
- uint8_t rtag = ioread8(master->sram + STAT_RTAG);
- uint8_t rcrc = ioread8(master->sram + STAT_RCRC);
+ uint8_t rtag = ioread8(master->sram + STAT_RTAG) & 0xf;
+ uint8_t rcrc = ioread8(master->sram + STAT_RCRC) & 0xf;
uint32_t rdata = 0;
uint32_t crc;
uint8_t ack;