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author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2007-07-20 09:38:54 (GMT) |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2007-07-20 20:29:33 (GMT) |
commit | 8b801ead3d7ab3cce991ea3a2d00c7336215fc7d (patch) | |
tree | e06f5378ebd8ecd67ec28ec2ed32d6ca39d291be /drivers/scsi/arm/oak.c | |
parent | 13d5fadf45d12786b90916e95e97f593e91aaf0a (diff) | |
download | linux-fsl-qoriq-8b801ead3d7ab3cce991ea3a2d00c7336215fc7d.tar.xz |
[ARM] rpc: update Acorn SCSI drivers to modern ecard interfaces
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/scsi/arm/oak.c')
-rw-r--r-- | drivers/scsi/arm/oak.c | 74 |
1 files changed, 44 insertions, 30 deletions
diff --git a/drivers/scsi/arm/oak.c b/drivers/scsi/arm/oak.c index c21b839..849cdf8 100644 --- a/drivers/scsi/arm/oak.c +++ b/drivers/scsi/arm/oak.c @@ -23,15 +23,18 @@ #define OAKSCSI_PUBLIC_RELEASE 1 -#define NCR5380_read(reg) oakscsi_read(_instance, reg) -#define NCR5380_write(reg, value) oakscsi_write(_instance, reg, value) +#define priv(host) ((struct NCR5380_hostdata *)(host)->hostdata) +#define NCR5380_local_declare() void __iomem *_base +#define NCR5380_setup(host) _base = priv(host)->base + +#define NCR5380_read(reg) readb(_base + ((reg) << 2)) +#define NCR5380_write(reg, value) writeb(value, _base + ((reg) << 2)) #define NCR5380_intr oakscsi_intr #define NCR5380_queue_command oakscsi_queue_command #define NCR5380_proc_info oakscsi_proc_info -#define NCR5380_implementation_fields int port, ctrl -#define NCR5380_local_declare() struct Scsi_Host *_instance -#define NCR5380_setup(instance) _instance = instance +#define NCR5380_implementation_fields \ + void __iomem *base #define BOARD_NORMAL 0 #define BOARD_NCR53C400 1 @@ -39,60 +42,62 @@ #include "../NCR5380.h" #undef START_DMA_INITIATOR_RECEIVE_REG -#define START_DMA_INITIATOR_RECEIVE_REG (7 + 128) +#define START_DMA_INITIATOR_RECEIVE_REG (128 + 7) const char * oakscsi_info (struct Scsi_Host *spnt) { return ""; } -#define STAT(p) inw(p + 144) -extern void inswb(int from, void *to, int len); +#define STAT ((128 + 16) << 2) +#define DATA ((128 + 8) << 2) static inline int NCR5380_pwrite(struct Scsi_Host *instance, unsigned char *addr, int len) { - int iobase = instance->io_port; + void __iomem *base = priv(instance)->base; + printk("writing %p len %d\n",addr, len); if(!len) return -1; while(1) { int status; - while(((status = STAT(iobase)) & 0x100)==0); + while (((status = readw(base + STAT)) & 0x100)==0); } } static inline int NCR5380_pread(struct Scsi_Host *instance, unsigned char *addr, int len) { - int iobase = instance->io_port; + void __iomem *base = priv(instance)->base; printk("reading %p len %d\n", addr, len); while(len > 0) { - int status, timeout; + unsigned int status, timeout; unsigned long b; timeout = 0x01FFFFFF; - while(((status = STAT(iobase)) & 0x100)==0) + while (((status = readw(base + STAT)) & 0x100)==0) { timeout--; if(status & 0x200 || !timeout) { - printk("status = %08X\n",status); + printk("status = %08X\n", status); return 1; } } + if(len >= 128) { - inswb(iobase + 136, addr, 128); + readsw(base + DATA, addr, 128); addr += 128; len -= 128; } else { - b = (unsigned long) inw(iobase + 136); + b = (unsigned long) readw(base + DATA); *addr ++ = b; len -= 1; if(len) @@ -103,10 +108,8 @@ printk("reading %p len %d\n", addr, len); return 0; } -#define oakscsi_read(instance,reg) (inb((instance)->io_port + (reg))) -#define oakscsi_write(instance,reg,val) (outb((val), (instance)->io_port + (reg))) - #undef STAT +#undef DATA #include "../NCR5380.c" @@ -132,18 +135,26 @@ oakscsi_probe(struct expansion_card *ec, const struct ecard_id *id) struct Scsi_Host *host; int ret = -ENOMEM; - host = scsi_host_alloc(&oakscsi_template, sizeof(struct NCR5380_hostdata)); - if (!host) + ret = ecard_request_resources(ec); + if (ret) goto out; - host->io_port = ecard_address(ec, ECARD_MEMC, 0); + host = scsi_host_alloc(&oakscsi_template, sizeof(struct NCR5380_hostdata)); + if (!host) { + ret = -ENOMEM; + goto release; + } + + priv(host)->base = ioremap(ecard_resource_start(ec, ECARD_RES_MEMC), + ecard_resource_len(ec, ECARD_RES_MEMC)); + if (!priv(host)->base) { + ret = -ENOMEM; + goto unreg; + } + host->irq = IRQ_NONE; host->n_io_port = 255; - ret = -EBUSY; - if (!request_region (host->io_port, host->n_io_port, "Oak SCSI")) - goto unreg; - NCR5380_init(host, 0); printk("scsi%d: at port 0x%08lx irqs disabled", @@ -156,15 +167,17 @@ oakscsi_probe(struct expansion_card *ec, const struct ecard_id *id) ret = scsi_add_host(host, &ec->dev); if (ret) - goto out_release; + goto out_unmap; scsi_scan_host(host); goto out; - out_release: - release_region(host->io_port, host->n_io_port); + out_unmap: + iounmap(priv(host)->base); unreg: scsi_host_put(host); + release: + ecard_release_resources(ec); out: return ret; } @@ -177,8 +190,9 @@ static void __devexit oakscsi_remove(struct expansion_card *ec) scsi_remove_host(host); NCR5380_exit(host); - release_region(host->io_port, host->n_io_port); + iounmap(priv(host)->base); scsi_host_put(host); + ecard_release_resources(ec); } static const struct ecard_id oakscsi_cids[] = { |