From: Kars de Jong Add m68k support to the 53c700 SCSI driver Signed-off-by: Geert Uytterhoeven --- 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 -- geert@linux-m68k.org 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 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/