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-rw-r--r--drivers/scsi/sata_sil24.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/scsi/sata_sil24.c b/drivers/scsi/sata_sil24.c
index 7a3d50dcd93..cb91894471f 100644
--- a/drivers/scsi/sata_sil24.c
+++ b/drivers/scsi/sata_sil24.c
@@ -107,14 +107,14 @@ enum {
PORT_PM = 0x0f80, /* 8 bytes PM * 16 (128 bytes) */
/* 32 bit regs */
- PORT_CTRL_STAT = 0x1000, /* write:ctrl, read:stat */
- PORT_CTRL_CLR = 0x1004,
- PORT_IRQ_STAT = 0x1008,
- PORT_IRQ_ENABLE_SET = 0x1010,
- PORT_IRQ_ENABLE_CLR = 0x1014,
+ PORT_CTRL_STAT = 0x1000, /* write: ctrl-set, read: stat */
+ PORT_CTRL_CLR = 0x1004, /* write: ctrl-clear */
+ PORT_IRQ_STAT = 0x1008, /* high: status, low: interrupt */
+ PORT_IRQ_ENABLE_SET = 0x1010, /* write: enable-set */
+ PORT_IRQ_ENABLE_CLR = 0x1014, /* write: enable-clear */
PORT_ACTIVATE_UPPER_ADDR= 0x101c,
- PORT_EXEC_FIFO = 0x1020,
- PORT_CMD_ERR = 0x1024,
+ PORT_EXEC_FIFO = 0x1020, /* command execution fifo */
+ PORT_CMD_ERR = 0x1024, /* command error number */
PORT_FIS_CFG = 0x1028,
PORT_FIFO_THRES = 0x102c,
/* 16 bit regs */
@@ -187,7 +187,7 @@ enum {
PORT_CERR_XFR_TGTABRT = 33, /* PSD ecode 01 - target abort */
PORT_CERR_XFR_MSGABRT = 34, /* PSD ecode 10 - master abort */
PORT_CERR_XFR_PCIPERR = 35, /* PSD ecode 11 - PCI prity err during transfer */
- PORT_CERR_SENDSERVICE = 36, /* FIS received whiel sending service */
+ PORT_CERR_SENDSERVICE = 36, /* FIS received while sending service */
/*
* Other constants