[PATCH] finally fix 53c700 to use the generic iomem infrastructure

This driver has had it's own different infrastructure for doing this for
ages, but it's time it used the common one.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

drivers/scsi/53c700.c

@@ -389,8 +389,7 @@ NCR_700_detect(struct scsi_host_template *tpnt,
 	host->max_lun = NCR_700_MAX_LUNS;
 	BUG_ON(NCR_700_transport_template == NULL);
 	host->transportt = NCR_700_transport_template;
-	host->unique_id = hostdata->base;
-	host->base = hostdata->base;
+	host->unique_id = (unsigned long)hostdata->base;
 	hostdata->eh_complete = NULL;
 	host->hostdata[0] = (unsigned long)hostdata;
 	/* kick the chip */

drivers/scsi/53c700.h

@@ -14,10 +14,6 @@
 #include <scsi/scsi_device.h>
 
 
-#if defined(CONFIG_53C700_MEM_MAPPED) && defined(CONFIG_53C700_IO_MAPPED)
-#define CONFIG_53C700_BOTH_MAPPED
-#endif
-
 /* Turn on for general debugging---too verbose for normal use */
 #undef	NCR_700_DEBUG
 /* Debug the tag queues, checking hash queue allocation and deallocation
@@ -49,13 +45,6 @@
 /* magic byte identifying an internally generated REQUEST_SENSE command */
 #define NCR_700_INTERNAL_SENSE_MAGIC	0x42
 
-/* WARNING: Leave this in for now: the dependency preprocessor doesn't
- * pick up file specific flags, so must define here if they are not
- * set */
-#if !defined(CONFIG_53C700_IO_MAPPED) && !defined(CONFIG_53C700_MEM_MAPPED)
-#error "Config.in must define either CONFIG_53C700_IO_MAPPED or CONFIG_53C700_MEM_MAPPED to use this scsi core."
-#endif
-
 struct NCR_700_Host_Parameters;
 
 /* These are the externally used routines */
@@ -184,7 +173,7 @@ struct NCR_700_command_slot {
 struct NCR_700_Host_Parameters {
 	/* These must be filled in by the calling driver */
 	int	clock;			/* board clock speed in MHz */
-	unsigned long	base;		/* the base for the port (copied to host) */
+	void __iomem	*base;		/* the base for the port (copied to host) */
 	struct device	*dev;
 	__u32	dmode_extra;	/* adjustable bus settings */
 	__u32	differential:1;	/* if we are differential */
@@ -199,9 +188,6 @@ struct NCR_700_Host_Parameters {
 	/* NOTHING BELOW HERE NEEDS ALTERING */
 	__u32	fast:1;		/* if we can alter the SCSI bus clock
                                    speed (so can negiotiate sync) */
-#ifdef CONFIG_53C700_BOTH_MAPPED
-	__u32	mem_mapped;	/* set if memory mapped */
-#endif
 	int	sync_clock;	/* The speed of the SYNC core */
 
 	__u32	*script;		/* pointer to script location */
@@ -246,12 +232,18 @@ 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))
 #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
@@ -455,91 +447,42 @@ struct NCR_700_Host_Parameters {
 
 
 static inline __u8
-NCR_700_mem_readb(struct Scsi_Host *host, __u32 reg)
-{
-	const struct NCR_700_Host_Parameters *hostdata __attribute__((unused))
-		= (struct NCR_700_Host_Parameters *)host->hostdata[0];
-
-	return readb(host->base + (reg^bE));
-}
-
-static inline __u32
-NCR_700_mem_readl(struct Scsi_Host *host, __u32 reg)
-{
-	__u32 value = __raw_readl(host->base + reg);
-	const struct NCR_700_Host_Parameters *hostdata __attribute__((unused))
-		= (struct NCR_700_Host_Parameters *)host->hostdata[0];
-#if 1
-	/* sanity check the register */
-	if((reg & 0x3) != 0)
-		BUG();
-#endif
-
-	return bS_to_cpu(value);
-}
-
-static inline void
-NCR_700_mem_writeb(__u8 value, struct Scsi_Host *host, __u32 reg)
-{
-	const struct NCR_700_Host_Parameters *hostdata __attribute__((unused))
-		= (struct NCR_700_Host_Parameters *)host->hostdata[0];
-
-	writeb(value, host->base + (reg^bE));
-}
-
-static inline void
-NCR_700_mem_writel(__u32 value, struct Scsi_Host *host, __u32 reg)
-{
-	const struct NCR_700_Host_Parameters *hostdata __attribute__((unused))
-		= (struct NCR_700_Host_Parameters *)host->hostdata[0];
-
-#if 1
-	/* sanity check the register */
-	if((reg & 0x3) != 0)
-		BUG();
-#endif
-
-	__raw_writel(bS_to_host(value), host->base + reg);
-}
-
-static inline __u8
-NCR_700_io_readb(struct Scsi_Host *host, __u32 reg)
+NCR_700_readb(struct Scsi_Host *host, __u32 reg)
 {
-	const struct NCR_700_Host_Parameters *hostdata __attribute__((unused))
+	const struct NCR_700_Host_Parameters *hostdata
 		= (struct NCR_700_Host_Parameters *)host->hostdata[0];
 
-	return inb(host->base + (reg^bE));
+	return ioread8(hostdata->base + (reg^bE));
 }
 
 static inline __u32
-NCR_700_io_readl(struct Scsi_Host *host, __u32 reg)
+NCR_700_readl(struct Scsi_Host *host, __u32 reg)
 {
-	__u32 value = inl(host->base + reg);
-	const struct NCR_700_Host_Parameters *hostdata __attribute__((unused))
+	const struct NCR_700_Host_Parameters *hostdata
 		= (struct NCR_700_Host_Parameters *)host->hostdata[0];
-
+	__u32 value = ioread32(hostdata->base + reg);
 #if 1
 	/* sanity check the register */
 	if((reg & 0x3) != 0)
 		BUG();
 #endif
 
-	return bS_to_cpu(value);
+	return bS_to_io(value);
 }
 
 static inline void
-NCR_700_io_writeb(__u8 value, struct Scsi_Host *host, __u32 reg)
+NCR_700_writeb(__u8 value, struct Scsi_Host *host, __u32 reg)
 {
-	const struct NCR_700_Host_Parameters *hostdata __attribute__((unused))
+	const struct NCR_700_Host_Parameters *hostdata
 		= (struct NCR_700_Host_Parameters *)host->hostdata[0];
 
-	outb(value, host->base + (reg^bE));
+	iowrite8(value, hostdata->base + (reg^bE));
 }
 
 static inline void
-NCR_700_io_writel(__u32 value, struct Scsi_Host *host, __u32 reg)
+NCR_700_writel(__u32 value, struct Scsi_Host *host, __u32 reg)
 {
-	const struct NCR_700_Host_Parameters *hostdata __attribute__((unused))
+	const struct NCR_700_Host_Parameters *hostdata
 		= (struct NCR_700_Host_Parameters *)host->hostdata[0];
 
 #if 1
@@ -548,102 +491,7 @@ NCR_700_io_writel(__u32 value, struct Scsi_Host *host, __u32 reg)
 		BUG();
 #endif
 
-	outl(bS_to_host(value), host->base + reg);
-}
-
-#ifdef CONFIG_53C700_BOTH_MAPPED
-
-static inline __u8
-NCR_700_readb(struct Scsi_Host *host, __u32 reg)
-{
-	__u8 val;
-
-	const struct NCR_700_Host_Parameters *hostdata __attribute__((unused))
-		= (struct NCR_700_Host_Parameters *)host->hostdata[0];
-
-	if(hostdata->mem_mapped)
-		val = NCR_700_mem_readb(host, reg);
-	else
-		val = NCR_700_io_readb(host, reg);
-
-	return val;
-}
-
-static inline __u32
-NCR_700_readl(struct Scsi_Host *host, __u32 reg)
-{
-	__u32 val;
-
-	const struct NCR_700_Host_Parameters *hostdata __attribute__((unused))
-		= (struct NCR_700_Host_Parameters *)host->hostdata[0];
-
-	if(hostdata->mem_mapped)
-		val = NCR_700_mem_readl(host, reg);
-	else
-		val = NCR_700_io_readl(host, reg);
-
-	return val;
-}
-
-static inline void
-NCR_700_writeb(__u8 value, struct Scsi_Host *host, __u32 reg)
-{
-	const struct NCR_700_Host_Parameters *hostdata __attribute__((unused))
-		= (struct NCR_700_Host_Parameters *)host->hostdata[0];
-
-	if(hostdata->mem_mapped)
-		NCR_700_mem_writeb(value, host, reg);
-	else
-		NCR_700_io_writeb(value, host, reg);
-}
-
-static inline void
-NCR_700_writel(__u32 value, struct Scsi_Host *host, __u32 reg)
-{
-	const struct NCR_700_Host_Parameters *hostdata __attribute__((unused))
-		= (struct NCR_700_Host_Parameters *)host->hostdata[0];
-
-	if(hostdata->mem_mapped)
-		NCR_700_mem_writel(value, host, reg);
-	else
-		NCR_700_io_writel(value, host, reg);
-}
-
-static inline void
-NCR_700_set_mem_mapped(struct NCR_700_Host_Parameters *hostdata)
-{
-	hostdata->mem_mapped = 1;
-}
-
-static inline void
-NCR_700_set_io_mapped(struct NCR_700_Host_Parameters *hostdata)
-{
-	hostdata->mem_mapped = 0;
+	iowrite32(bS_to_io(value), hostdata->base + reg);
 }
 
-
-#elif defined(CONFIG_53C700_IO_MAPPED)
-
-#define NCR_700_readb NCR_700_io_readb
-#define NCR_700_readl NCR_700_io_readl
-#define NCR_700_writeb NCR_700_io_writeb
-#define NCR_700_writel NCR_700_io_writel
-
-#define NCR_700_set_io_mapped(x)
-#define NCR_700_set_mem_mapped(x)	error I/O mapped only
-
-#elif defined(CONFIG_53C700_MEM_MAPPED)
-
-#define NCR_700_readb NCR_700_mem_readb
-#define NCR_700_readl NCR_700_mem_readl
-#define NCR_700_writeb NCR_700_mem_writeb
-#define NCR_700_writel NCR_700_mem_writel
-
-#define NCR_700_set_io_mapped(x)	error MEM mapped only
-#define NCR_700_set_mem_mapped(x)
-
-#else
-#error neither CONFIG_53C700_MEM_MAPPED nor CONFIG_53C700_IO_MAPPED is set
-#endif
-
 #endif

drivers/scsi/Kconfig

@@ -942,11 +942,6 @@ config SCSI_NCR_D700
 	  Unless you have an NCR manufactured machine, the chances are that
 	  you do not have this SCSI card, so say N.
 
-config 53C700_IO_MAPPED
-	bool
-	depends on SCSI_NCR_D700
-	default y
-
 config SCSI_LASI700
 	tristate "HP Lasi SCSI support for 53c700/710"
 	depends on GSC && SCSI
@@ -956,11 +951,6 @@ config SCSI_LASI700
 	  many PA-RISC workstations & servers.  If you do not know whether you
 	  have a Lasi chip, it is safe to say "Y" here.
 
-config 53C700_MEM_MAPPED
-	bool
-	depends on SCSI_LASI700
-	default y
-
 config 53C700_LE_ON_BE
 	bool
 	depends on SCSI_LASI700

drivers/scsi/NCR_D700.c

@@ -197,12 +197,10 @@ NCR_D700_probe_one(struct NCR_D700_private *p, int siop, int irq,
 	}
 
 	/* Fill in the three required pieces of hostdata */
-	hostdata->base = region;
+	hostdata->base = ioport_map(region, 64);
 	hostdata->differential = (((1<<siop) & differential) != 0);
 	hostdata->clock = NCR_D700_CLOCK_MHZ;
 
-	NCR_700_set_io_mapped(hostdata);
-
 	/* and register the siop */
 	host = NCR_700_detect(&NCR_D700_driver_template, hostdata, p->dev);
 	if (!host) {
@@ -214,6 +212,7 @@ NCR_D700_probe_one(struct NCR_D700_private *p, int siop, int irq,
 	/* FIXME: read this from SUS */
 	host->this_id = id_array[slot * 2 + siop];
 	host->irq = irq;
+	host->base = region;
 	scsi_scan_host(host);
 
 	return 0;

drivers/scsi/lasi700.c

@@ -131,6 +131,7 @@ lasi700_probe(struct parisc_device *dev)
 	if (!host)
 		goto out_kfree;
 	host->this_id = 7;
+	host->base = base;
 	host->irq = dev->irq;
 	if(request_irq(dev->irq, NCR_700_intr, SA_SHIRQ, "lasi700", host)) {
 		printk(KERN_ERR "lasi700: request_irq failed!\n");

drivers/scsi/sim710.c

@@ -120,11 +120,10 @@ sim710_probe_common(struct device *dev, unsigned long base_addr,
 	}
 
 	/* Fill in the three required pieces of hostdata */
-	hostdata->base = base_addr;
+	hostdata->base = ioport_map(base_addr, 64);
 	hostdata->differential = differential;
 	hostdata->clock = clock;
 	hostdata->chip710 = 1;
-	NCR_700_set_io_mapped(hostdata);
 
 	/* and register the chip */
 	if((host = NCR_700_detect(&sim710_driver_template, hostdata, dev))
@@ -133,6 +132,7 @@ sim710_probe_common(struct device *dev, unsigned long base_addr,
 		goto out_release;
 	}
 	host->this_id = scsi_id;
+	host->base = base_addr;
 	host->irq = irq;
 	if (request_irq(irq, NCR_700_intr, SA_SHIRQ, "sim710", host)) {
 		printk(KERN_ERR "sim710: request_irq failed\n");
@@ -164,6 +164,7 @@ sim710_device_remove(struct device *dev)
 	NCR_700_release(host);
 	kfree(hostdata);
 	free_irq(host->irq, host);
+	release_region(host->base, 64);
 	return 0;
 }