aboutsummaryrefslogtreecommitdiff
path: root/arch/m68k/include/asm/atafdreg.h
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2009-01-26 10:33:01 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-26 10:33:01 -0800
commitac3d266bf1bbbdd7efb6bd6760f2ee29e43bb132 (patch)
treed498e947176f4b77938034ff6c6427f9875da721 /arch/m68k/include/asm/atafdreg.h
parent9f4863b7dc7f545bb3a01746feafdc1208e86c89 (diff)
parent49148020bcb6910ce71417bd990a5ce7017f9bd3 (diff)
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: m68k,m68knommu: merge header files Resolve trivial conflict in arch/m68knommu/include/asm/Kbuild
Diffstat (limited to 'arch/m68k/include/asm/atafdreg.h')
-rw-r--r--arch/m68k/include/asm/atafdreg.h79
1 files changed, 79 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/atafdreg.h b/arch/m68k/include/asm/atafdreg.h
new file mode 100644
index 00000000000..bbf80949fd9
--- /dev/null
+++ b/arch/m68k/include/asm/atafdreg.h
@@ -0,0 +1,79 @@
+#ifndef _LINUX_FDREG_H
+#define _LINUX_FDREG_H
+
+/*
+** WD1772 stuff
+ */
+
+/* register codes */
+
+#define FDCSELREG_STP (0x80) /* command/status register */
+#define FDCSELREG_TRA (0x82) /* track register */
+#define FDCSELREG_SEC (0x84) /* sector register */
+#define FDCSELREG_DTA (0x86) /* data register */
+
+/* register names for FDC_READ/WRITE macros */
+
+#define FDCREG_CMD 0
+#define FDCREG_STATUS 0
+#define FDCREG_TRACK 2
+#define FDCREG_SECTOR 4
+#define FDCREG_DATA 6
+
+/* command opcodes */
+
+#define FDCCMD_RESTORE (0x00) /* - */
+#define FDCCMD_SEEK (0x10) /* | */
+#define FDCCMD_STEP (0x20) /* | TYP 1 Commands */
+#define FDCCMD_STIN (0x40) /* | */
+#define FDCCMD_STOT (0x60) /* - */
+#define FDCCMD_RDSEC (0x80) /* - TYP 2 Commands */
+#define FDCCMD_WRSEC (0xa0) /* - " */
+#define FDCCMD_RDADR (0xc0) /* - */
+#define FDCCMD_RDTRA (0xe0) /* | TYP 3 Commands */
+#define FDCCMD_WRTRA (0xf0) /* - */
+#define FDCCMD_FORCI (0xd0) /* - TYP 4 Command */
+
+/* command modifier bits */
+
+#define FDCCMDADD_SR6 (0x00) /* step rate settings */
+#define FDCCMDADD_SR12 (0x01)
+#define FDCCMDADD_SR2 (0x02)
+#define FDCCMDADD_SR3 (0x03)
+#define FDCCMDADD_V (0x04) /* verify */
+#define FDCCMDADD_H (0x08) /* wait for spin-up */
+#define FDCCMDADD_U (0x10) /* update track register */
+#define FDCCMDADD_M (0x10) /* multiple sector access */
+#define FDCCMDADD_E (0x04) /* head settling flag */
+#define FDCCMDADD_P (0x02) /* precompensation off */
+#define FDCCMDADD_A0 (0x01) /* DAM flag */
+
+/* status register bits */
+
+#define FDCSTAT_MOTORON (0x80) /* motor on */
+#define FDCSTAT_WPROT (0x40) /* write protected (FDCCMD_WR*) */
+#define FDCSTAT_SPINUP (0x20) /* motor speed stable (Type I) */
+#define FDCSTAT_DELDAM (0x20) /* sector has deleted DAM (Type II+III) */
+#define FDCSTAT_RECNF (0x10) /* record not found */
+#define FDCSTAT_CRC (0x08) /* CRC error */
+#define FDCSTAT_TR00 (0x04) /* Track 00 flag (Type I) */
+#define FDCSTAT_LOST (0x04) /* Lost Data (Type II+III) */
+#define FDCSTAT_IDX (0x02) /* Index status (Type I) */
+#define FDCSTAT_DRQ (0x02) /* DRQ status (Type II+III) */
+#define FDCSTAT_BUSY (0x01) /* FDC is busy */
+
+
+/* PSG Port A Bit Nr 0 .. Side Sel .. 0 -> Side 1 1 -> Side 2 */
+#define DSKSIDE (0x01)
+
+#define DSKDRVNONE (0x06)
+#define DSKDRV0 (0x02)
+#define DSKDRV1 (0x04)
+
+/* step rates */
+#define FDCSTEP_6 0x00
+#define FDCSTEP_12 0x01
+#define FDCSTEP_2 0x02
+#define FDCSTEP_3 0x03
+
+#endif