diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/53c700.h | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/drivers/scsi/53c700.h b/drivers/scsi/53c700.h index 362d78483d0..a8c83bb0363 100644 --- a/drivers/scsi/53c700.h +++ b/drivers/scsi/53c700.h @@ -238,21 +238,23 @@ struct NCR_700_Host_Parameters { #ifdef CONFIG_53C700_LE_ON_BE #define bE (hostdata->force_le_on_be ? 0 : 3) #define bSWAP (hostdata->force_le_on_be) -/* This is terrible, but there's no raw version of ioread32. That means - * that on a be board we swap twice (once in ioread32 and once again to - * get the value correct) */ -#define bS_to_io(x) ((hostdata->force_le_on_be) ? (x) : cpu_to_le32(x)) +#define bEBus (!hostdata->force_le_on_be) #elif defined(__BIG_ENDIAN) #define bE 3 #define bSWAP 0 -#define bS_to_io(x) (x) #elif defined(__LITTLE_ENDIAN) #define bE 0 #define bSWAP 0 -#define bS_to_io(x) (x) #else #error "__BIG_ENDIAN or __LITTLE_ENDIAN must be defined, did you include byteorder.h?" #endif +#ifndef bEBus +#ifdef CONFIG_53C700_BE_BUS +#define bEBus 1 +#else +#define bEBus 0 +#endif +#endif #define bS_to_cpu(x) (bSWAP ? le32_to_cpu(x) : (x)) #define bS_to_host(x) (bSWAP ? cpu_to_le32(x) : (x)) @@ -466,14 +468,15 @@ NCR_700_readl(struct Scsi_Host *host, __u32 reg) { const struct NCR_700_Host_Parameters *hostdata = (struct NCR_700_Host_Parameters *)host->hostdata[0]; - __u32 value = ioread32(hostdata->base + reg); + __u32 value = bEBus ? ioread32be(hostdata->base + reg) : + ioread32(hostdata->base + reg); #if 1 /* sanity check the register */ if((reg & 0x3) != 0) BUG(); #endif - return bS_to_io(value); + return value; } static inline void @@ -497,7 +500,8 @@ NCR_700_writel(__u32 value, struct Scsi_Host *host, __u32 reg) BUG(); #endif - iowrite32(bS_to_io(value), hostdata->base + reg); + bEBus ? iowrite32be(value, hostdata->base + reg): + iowrite32(value, hostdata->base + reg); } #endif |