From: Kars de Jong <[email protected]>
Add m68k support to the 53c700 SCSI driver
Signed-off-by: Geert Uytterhoeven <[email protected]>
---
drivers/scsi/53c700.c | 20 ++++++++++----------
drivers/scsi/53c700.h | 5 +++++
drivers/scsi/Kconfig | 13 +++++--------
3 files changed, 20 insertions(+), 18 deletions(-)
--- a/drivers/scsi/53c700.c
+++ b/drivers/scsi/53c700.c
@@ -653,7 +653,6 @@ NCR_700_chip_setup(struct Scsi_Host *hos
{
struct NCR_700_Host_Parameters *hostdata =
(struct NCR_700_Host_Parameters *)host->hostdata[0];
- __u32 dcntl_extra = 0;
__u8 min_period;
__u8 min_xferp = (hostdata->chip710 ? NCR_710_MIN_XFERP : NCR_700_MIN_XFERP);
@@ -678,13 +677,14 @@ NCR_700_chip_setup(struct Scsi_Host *hos
burst_disable = BURST_DISABLE;
break;
}
- dcntl_extra = COMPAT_700_MODE;
+ hostdata->dcntl_extra |= COMPAT_700_MODE;
- NCR_700_writeb(dcntl_extra, host, DCNTL_REG);
+ NCR_700_writeb(hostdata->dcntl_extra, host, DCNTL_REG);
NCR_700_writeb(burst_length | hostdata->dmode_extra,
host, DMODE_710_REG);
- NCR_700_writeb(burst_disable | (hostdata->differential ?
- DIFF : 0), host, CTEST7_REG);
+ NCR_700_writeb(burst_disable | hostdata->ctest7_extra |
+ (hostdata->differential ? DIFF : 0),
+ host, CTEST7_REG);
NCR_700_writeb(BTB_TIMER_DISABLE, host, CTEST0_REG);
NCR_700_writeb(FULL_ARBITRATION | ENABLE_PARITY | PARITY
| AUTO_ATN, host, SCNTL0_REG);
@@ -719,13 +719,13 @@ NCR_700_chip_setup(struct Scsi_Host *hos
* of spec: sync divider 2, async divider 3 */
DEBUG(("53c700: sync 2 async 3\n"));
NCR_700_writeb(SYNC_DIV_2_0, host, SBCL_REG);
- NCR_700_writeb(ASYNC_DIV_3_0 | dcntl_extra, host, DCNTL_REG);
+ NCR_700_writeb(ASYNC_DIV_3_0 | hostdata->dcntl_extra, host, DCNTL_REG);
hostdata->sync_clock = hostdata->clock/2;
} else if(hostdata->clock > 50 && hostdata->clock <= 75) {
/* sync divider 1.5, async divider 3 */
DEBUG(("53c700: sync 1.5 async 3\n"));
NCR_700_writeb(SYNC_DIV_1_5, host, SBCL_REG);
- NCR_700_writeb(ASYNC_DIV_3_0 | dcntl_extra, host, DCNTL_REG);
+ NCR_700_writeb(ASYNC_DIV_3_0 | hostdata->dcntl_extra, host, DCNTL_REG);
hostdata->sync_clock = hostdata->clock*2;
hostdata->sync_clock /= 3;
@@ -733,18 +733,18 @@ NCR_700_chip_setup(struct Scsi_Host *hos
/* sync divider 1, async divider 2 */
DEBUG(("53c700: sync 1 async 2\n"));
NCR_700_writeb(SYNC_DIV_1_0, host, SBCL_REG);
- NCR_700_writeb(ASYNC_DIV_2_0 | dcntl_extra, host, DCNTL_REG);
+ NCR_700_writeb(ASYNC_DIV_2_0 | hostdata->dcntl_extra, host, DCNTL_REG);
hostdata->sync_clock = hostdata->clock;
} else if(hostdata->clock > 25 && hostdata->clock <=37) {
/* sync divider 1, async divider 1.5 */
DEBUG(("53c700: sync 1 async 1.5\n"));
NCR_700_writeb(SYNC_DIV_1_0, host, SBCL_REG);
- NCR_700_writeb(ASYNC_DIV_1_5 | dcntl_extra, host, DCNTL_REG);
+ NCR_700_writeb(ASYNC_DIV_1_5 | hostdata->dcntl_extra, host, DCNTL_REG);
hostdata->sync_clock = hostdata->clock;
} else {
DEBUG(("53c700: sync 1 async 1\n"));
NCR_700_writeb(SYNC_DIV_1_0, host, SBCL_REG);
- NCR_700_writeb(ASYNC_DIV_1_0 | dcntl_extra, host, DCNTL_REG);
+ NCR_700_writeb(ASYNC_DIV_1_0 | hostdata->dcntl_extra, host, DCNTL_REG);
/* sync divider 1, async divider 1 */
hostdata->sync_clock = hostdata->clock;
}
--- a/drivers/scsi/53c700.h
+++ b/drivers/scsi/53c700.h
@@ -177,6 +177,7 @@ struct NCR_700_command_slot {
__u8 state;
#define NCR_700_FLAG_AUTOSENSE 0x01
__u8 flags;
+ __u8 pad1[2]; /* Needed for m68k where min alignment is 2 bytes */
int tag;
__u32 resume_offset;
struct scsi_cmnd *cmnd;
@@ -196,6 +197,8 @@ struct NCR_700_Host_Parameters {
void __iomem *base; /* the base for the port (copied to host) */
struct device *dev;
__u32 dmode_extra; /* adjustable bus settings */
+ __u32 dcntl_extra; /* adjustable bus settings */
+ __u32 ctest7_extra; /* adjustable bus settings */
__u32 differential:1; /* if we are differential */
#ifdef CONFIG_53C700_LE_ON_BE
/* This option is for HP only. Set it if your chip is wired for
@@ -352,6 +355,7 @@ struct NCR_700_Host_Parameters {
#define SEL_TIMEOUT_DISABLE 0x10 /* 710 only */
#define DFP 0x08
#define EVP 0x04
+#define CTEST7_TT1 0x02
#define DIFF 0x01
#define CTEST6_REG 0x1A
#define TEMP_REG 0x1C
@@ -385,6 +389,7 @@ struct NCR_700_Host_Parameters {
#define SOFTWARE_RESET 0x01
#define COMPAT_700_MODE 0x01
#define SCRPTS_16BITS 0x20
+#define EA_710 0x20
#define ASYNC_DIV_2_0 0x00
#define ASYNC_DIV_1_5 0x40
#define ASYNC_DIV_1_0 0x80
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -1006,6 +1006,11 @@ config SCSI_STEX
To compile this driver as a module, choose M here: the
module will be called stex.
+config 53C700_BE_BUS
+ bool
+ depends on M68K
+ default y
+
config SCSI_SYM53C8XX_2
tristate "SYM53C8XX Version 2 SCSI support"
depends on PCI && SCSI
@@ -1728,14 +1733,6 @@ config BVME6000_SCSI
SCSI controller chip. Almost everyone using one of these boards
will want to say Y to this question.
-config SCSI_NCR53C7xx_FAST
- bool "allow FAST-SCSI [10MHz]"
- depends on SCSI_AMIGA7XX || MVME16x_SCSI || BVME6000_SCSI
- help
- This will enable 10MHz FAST-SCSI transfers with your host
- adapter. Some systems have problems with that speed, so it's safest
- to say N here.
-
config SUN3_SCSI
tristate "Sun3 NCR5380 SCSI"
depends on SUN3 && SCSI
--
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [email protected]
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
-
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