From 820682b1b34ebb97434c4abc00c744870364e2be Mon Sep 17 00:00:00 2001 From: Finn Thain Date: Mon, 10 Oct 2016 00:46:53 -0400 Subject: scsi: ncr5380: Store IO ports and addresses in host private data The various 5380 drivers inconsistently store register pointers either in the Scsi_Host struct "legacy crap" area or in special, board-specific members of the NCR5380_hostdata struct. Uniform use of the latter struct makes for simpler and faster code (see the following patches) and helps to reduce use of the NCR5380_implementation_fields macro. Signed-off-by: Finn Thain Reviewed-by: Hannes Reinecke Tested-by: Ondrej Zary Tested-by: Michael Schmitz Acked-by: Russell King Signed-off-by: Martin K. Petersen --- drivers/scsi/arm/cumana_1.c | 60 +++++++++++++++++++++++---------------------- drivers/scsi/arm/oak.c | 23 +++++++++-------- 2 files changed, 42 insertions(+), 41 deletions(-) (limited to 'drivers/scsi/arm') diff --git a/drivers/scsi/arm/cumana_1.c b/drivers/scsi/arm/cumana_1.c index f616756feee5..88db2816f97c 100644 --- a/drivers/scsi/arm/cumana_1.c +++ b/drivers/scsi/arm/cumana_1.c @@ -27,9 +27,7 @@ #define NCR5380_info cumanascsi_info #define NCR5380_implementation_fields \ - unsigned ctrl; \ - void __iomem *base; \ - void __iomem *dma + unsigned ctrl #include "../NCR5380.h" @@ -42,17 +40,18 @@ static inline int cumanascsi_pwrite(struct Scsi_Host *host, unsigned char *addr, int len) { unsigned long *laddr; - void __iomem *dma = priv(host)->dma + 0x2000; + u8 __iomem *base = priv(host)->io; + u8 __iomem *dma = priv(host)->pdma_io + 0x2000; if(!len) return 0; - writeb(0x02, priv(host)->base + CTRL); + writeb(0x02, base + CTRL); laddr = (unsigned long *)addr; while(len >= 32) { unsigned int status; unsigned long v; - status = readb(priv(host)->base + STAT); + status = readb(base + STAT); if(status & 0x80) goto end; if(!(status & 0x40)) @@ -71,12 +70,12 @@ static inline int cumanascsi_pwrite(struct Scsi_Host *host, } addr = (unsigned char *)laddr; - writeb(0x12, priv(host)->base + CTRL); + writeb(0x12, base + CTRL); while(len > 0) { unsigned int status; - status = readb(priv(host)->base + STAT); + status = readb(base + STAT); if(status & 0x80) goto end; if(status & 0x40) @@ -86,7 +85,7 @@ static inline int cumanascsi_pwrite(struct Scsi_Host *host, break; } - status = readb(priv(host)->base + STAT); + status = readb(base + STAT); if(status & 0x80) goto end; if(status & 0x40) @@ -97,7 +96,7 @@ static inline int cumanascsi_pwrite(struct Scsi_Host *host, } } end: - writeb(priv(host)->ctrl | 0x40, priv(host)->base + CTRL); + writeb(priv(host)->ctrl | 0x40, base + CTRL); if (len) return -1; @@ -108,16 +107,17 @@ static inline int cumanascsi_pread(struct Scsi_Host *host, unsigned char *addr, int len) { unsigned long *laddr; - void __iomem *dma = priv(host)->dma + 0x2000; + u8 __iomem *base = priv(host)->io; + u8 __iomem *dma = priv(host)->pdma_io + 0x2000; if(!len) return 0; - writeb(0x00, priv(host)->base + CTRL); + writeb(0x00, base + CTRL); laddr = (unsigned long *)addr; while(len >= 32) { unsigned int status; - status = readb(priv(host)->base + STAT); + status = readb(base + STAT); if(status & 0x80) goto end; if(!(status & 0x40)) @@ -136,12 +136,12 @@ static inline int cumanascsi_pread(struct Scsi_Host *host, } addr = (unsigned char *)laddr; - writeb(0x10, priv(host)->base + CTRL); + writeb(0x10, base + CTRL); while(len > 0) { unsigned int status; - status = readb(priv(host)->base + STAT); + status = readb(base + STAT); if(status & 0x80) goto end; if(status & 0x40) @@ -151,7 +151,7 @@ static inline int cumanascsi_pread(struct Scsi_Host *host, break; } - status = readb(priv(host)->base + STAT); + status = readb(base + STAT); if(status & 0x80) goto end; if(status & 0x40) @@ -162,7 +162,7 @@ static inline int cumanascsi_pread(struct Scsi_Host *host, } } end: - writeb(priv(host)->ctrl | 0x40, priv(host)->base + CTRL); + writeb(priv(host)->ctrl | 0x40, base + CTRL); if (len) return -1; @@ -171,7 +171,7 @@ end: static unsigned char cumanascsi_read(struct Scsi_Host *host, unsigned int reg) { - void __iomem *base = priv(host)->base; + u8 __iomem *base = priv(host)->io; unsigned char val; writeb(0, base + CTRL); @@ -186,7 +186,7 @@ static unsigned char cumanascsi_read(struct Scsi_Host *host, unsigned int reg) static void cumanascsi_write(struct Scsi_Host *host, unsigned int reg, unsigned int value) { - void __iomem *base = priv(host)->base; + u8 __iomem *base = priv(host)->io; writeb(0, base + CTRL); @@ -231,11 +231,11 @@ static int cumanascsi1_probe(struct expansion_card *ec, goto out_release; } - priv(host)->base = ioremap(ecard_resource_start(ec, ECARD_RES_IOCSLOW), - ecard_resource_len(ec, ECARD_RES_IOCSLOW)); - priv(host)->dma = ioremap(ecard_resource_start(ec, ECARD_RES_MEMC), - ecard_resource_len(ec, ECARD_RES_MEMC)); - if (!priv(host)->base || !priv(host)->dma) { + priv(host)->io = ioremap(ecard_resource_start(ec, ECARD_RES_IOCSLOW), + ecard_resource_len(ec, ECARD_RES_IOCSLOW)); + priv(host)->pdma_io = ioremap(ecard_resource_start(ec, ECARD_RES_MEMC), + ecard_resource_len(ec, ECARD_RES_MEMC)); + if (!priv(host)->io || !priv(host)->pdma_io) { ret = -ENOMEM; goto out_unmap; } @@ -249,7 +249,7 @@ static int cumanascsi1_probe(struct expansion_card *ec, NCR5380_maybe_reset_bus(host); priv(host)->ctrl = 0; - writeb(0, priv(host)->base + CTRL); + writeb(0, priv(host)->io + CTRL); ret = request_irq(host->irq, cumanascsi_intr, 0, "CumanaSCSI-1", host); @@ -271,8 +271,8 @@ static int cumanascsi1_probe(struct expansion_card *ec, out_exit: NCR5380_exit(host); out_unmap: - iounmap(priv(host)->base); - iounmap(priv(host)->dma); + iounmap(priv(host)->io); + iounmap(priv(host)->pdma_io); scsi_host_put(host); out_release: ecard_release_resources(ec); @@ -283,15 +283,17 @@ static int cumanascsi1_probe(struct expansion_card *ec, static void cumanascsi1_remove(struct expansion_card *ec) { struct Scsi_Host *host = ecard_get_drvdata(ec); + void __iomem *base = priv(host)->io; + void __iomem *dma = priv(host)->pdma_io; ecard_set_drvdata(ec, NULL); scsi_remove_host(host); free_irq(host->irq, host); NCR5380_exit(host); - iounmap(priv(host)->base); - iounmap(priv(host)->dma); scsi_host_put(host); + iounmap(base); + iounmap(dma); ecard_release_resources(ec); } diff --git a/drivers/scsi/arm/oak.c b/drivers/scsi/arm/oak.c index a396024a3cae..1c4a44a1e62d 100644 --- a/drivers/scsi/arm/oak.c +++ b/drivers/scsi/arm/oak.c @@ -17,9 +17,9 @@ #define priv(host) ((struct NCR5380_hostdata *)(host)->hostdata) #define NCR5380_read(reg) \ - readb(priv(instance)->base + ((reg) << 2)) + readb(priv(instance)->io + ((reg) << 2)) #define NCR5380_write(reg, value) \ - writeb(value, priv(instance)->base + ((reg) << 2)) + writeb(value, priv(instance)->io + ((reg) << 2)) #define NCR5380_dma_xfer_len(instance, cmd, phase) (0) #define NCR5380_dma_recv_setup oakscsi_pread @@ -29,8 +29,7 @@ #define NCR5380_queue_command oakscsi_queue_command #define NCR5380_info oakscsi_info -#define NCR5380_implementation_fields \ - void __iomem *base +#define NCR5380_implementation_fields /* none */ #include "../NCR5380.h" @@ -43,7 +42,7 @@ static inline int oakscsi_pwrite(struct Scsi_Host *instance, unsigned char *addr, int len) { - void __iomem *base = priv(instance)->base; + u8 __iomem *base = priv(instance)->io; printk("writing %p len %d\n",addr, len); @@ -58,7 +57,7 @@ printk("writing %p len %d\n",addr, len); static inline int oakscsi_pread(struct Scsi_Host *instance, unsigned char *addr, int len) { - void __iomem *base = priv(instance)->base; + u8 __iomem *base = priv(instance)->io; printk("reading %p len %d\n", addr, len); while(len > 0) { @@ -133,15 +132,14 @@ static int oakscsi_probe(struct expansion_card *ec, const struct ecard_id *id) goto release; } - priv(host)->base = ioremap(ecard_resource_start(ec, ECARD_RES_MEMC), - ecard_resource_len(ec, ECARD_RES_MEMC)); - if (!priv(host)->base) { + priv(host)->io = ioremap(ecard_resource_start(ec, ECARD_RES_MEMC), + ecard_resource_len(ec, ECARD_RES_MEMC)); + if (!priv(host)->io) { ret = -ENOMEM; goto unreg; } host->irq = NO_IRQ; - host->n_io_port = 255; ret = NCR5380_init(host, FLAG_DMA_FIXUP | FLAG_LATE_DMA_SETUP); if (ret) @@ -159,7 +157,7 @@ static int oakscsi_probe(struct expansion_card *ec, const struct ecard_id *id) out_exit: NCR5380_exit(host); out_unmap: - iounmap(priv(host)->base); + iounmap(priv(host)->io); unreg: scsi_host_put(host); release: @@ -171,13 +169,14 @@ static int oakscsi_probe(struct expansion_card *ec, const struct ecard_id *id) static void oakscsi_remove(struct expansion_card *ec) { struct Scsi_Host *host = ecard_get_drvdata(ec); + void __iomem *base = priv(host)->io; ecard_set_drvdata(ec, NULL); scsi_remove_host(host); NCR5380_exit(host); - iounmap(priv(host)->base); scsi_host_put(host); + iounmap(base); ecard_release_resources(ec); } -- cgit v1.2.3-59-g8ed1b