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 000000000000..bbf80949fd9f
--- /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