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-rw-r--r--src/hw/esp-scsi.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/hw/esp-scsi.c b/src/hw/esp-scsi.c
index 3282437..06ef20d 100644
--- a/src/hw/esp-scsi.c
+++ b/src/hw/esp-scsi.c
@@ -46,6 +46,7 @@
#define ESP_DMA_WMAC 0x58c
#define ESP_CMD_DMA 0x80
+#define ESP_CMD_FLUSH 0x01
#define ESP_CMD_RESET 0x02
#define ESP_CMD_TI 0x10
#define ESP_CMD_ICCS 0x11
@@ -96,6 +97,9 @@ esp_scsi_process_op(struct disk_op_s *op)
outb(target, iobase + ESP_WBUSID);
+ /* Clear FIFO before sending command. */
+ outb(ESP_CMD_FLUSH, iobase + ESP_CMD);
+
/*
* We need to pass the LUN at the beginning of the command, and the FIFO
* is only 16 bytes, so we cannot support 16-byte CDBs. The alternative