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sun3_scsi: Convert to platform device

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Convert sun3_scsi to platform device and eliminate scsi_register().

Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Finn Thain 2014-11-13 12:21:28 +11:00 committed by Christoph Hellwig
parent 4e70520525
commit 0d31f87591
3 changed files with 245 additions and 222 deletions
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60
arch/m68k/sun3/config.c
View File

@ -16,6 +16,7 @@
#include <linux/console.h>
#include <linux/init.h>
#include <linux/bootmem.h>
#include <linux/platform_device.h>
#include <asm/oplib.h>
#include <asm/setup.h>
@ -27,6 +28,7 @@
#include <asm/sun3mmu.h>
#include <asm/rtc.h>
#include <asm/machdep.h>
#include <asm/machines.h>
#include <asm/idprom.h>
#include <asm/intersil.h>
#include <asm/irq.h>
@ -169,3 +171,61 @@ static void __init sun3_sched_init(irq_handler_t timer_routine)
intersil_clear();
}
#ifdef CONFIG_SUN3_SCSI
static const struct resource sun3_scsi_vme_rsrc[] __initconst = {
{
.flags = IORESOURCE_IRQ,
.start = SUN3_VEC_VMESCSI0,
.end = SUN3_VEC_VMESCSI0,
}, {
.flags = IORESOURCE_MEM,
.start = 0xff200000,
.end = 0xff200021,
}, {
.flags = IORESOURCE_IRQ,
.start = SUN3_VEC_VMESCSI1,
.end = SUN3_VEC_VMESCSI1,
}, {
.flags = IORESOURCE_MEM,
.start = 0xff204000,
.end = 0xff204021,
},
};
/*
* Int: level 2 autovector
* IO: type 1, base 0x00140000, 5 bits phys space: A<4..0>
*/
static const struct resource sun3_scsi_rsrc[] __initconst = {
{
.flags = IORESOURCE_IRQ,
.start = 2,
.end = 2,
}, {
.flags = IORESOURCE_MEM,
.start = 0x00140000,
.end = 0x0014001f,
},
};
int __init sun3_platform_init(void)
{
switch (idprom->id_machtype) {
case SM_SUN3 | SM_3_160:
case SM_SUN3 | SM_3_260:
platform_device_register_simple("sun3_scsi_vme", -1,
sun3_scsi_vme_rsrc, ARRAY_SIZE(sun3_scsi_vme_rsrc));
break;
case SM_SUN3 | SM_3_50:
case SM_SUN3 | SM_3_60:
platform_device_register_simple("sun3_scsi", -1,
sun3_scsi_rsrc, ARRAY_SIZE(sun3_scsi_rsrc));
break;
}
return 0;
}
arch_initcall(sun3_platform_init);
#endif

390
drivers/scsi/sun3_scsi.c
View File

@ -23,22 +23,15 @@
*/
#include <linux/types.h>
#include <linux/stddef.h>
#include <linux/ctype.h>
#include <linux/delay.h>
#include <linux/module.h>
#include <linux/signal.h>
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/blkdev.h>
#include <linux/platform_device.h>
#include <asm/io.h>
#include <asm/sun3ints.h>
#include <asm/dvma.h>
#include <asm/idprom.h>
#include <asm/machines.h>
/* dma on! */
#define REAL_DMA
@ -59,8 +52,6 @@ extern int sun3_map_test(unsigned long, char *);
#endif
static irqreturn_t scsi_sun3_intr(int irq, void *dummy);
static int setup_can_queue = -1;
module_param(setup_can_queue, int, 0);
static int setup_cmd_per_lun = -1;
@ -89,15 +80,14 @@ static struct scsi_cmnd *sun3_dma_setup_done = NULL;
/* minimum number of bytes to do dma on */
#define SUN3_DMA_MINSIZE 128
static volatile unsigned char *sun3_scsi_regp;
static unsigned char *sun3_scsi_regp;
static volatile struct sun3_dma_regs *dregs;
#ifndef SUN3_SCSI_VME
static struct sun3_udc_regs *udc_regs = NULL;
#endif
static struct sun3_udc_regs *udc_regs;
static unsigned char *sun3_dma_orig_addr = NULL;
static unsigned long sun3_dma_orig_count = 0;
static int sun3_dma_active = 0;
static unsigned long last_residual = 0;
static struct Scsi_Host *default_instance;
/*
* NCR 5380 register access functions
@ -105,12 +95,12 @@ static unsigned long last_residual = 0;
static inline unsigned char sun3scsi_read(int reg)
{
return( sun3_scsi_regp[reg] );
return in_8(sun3_scsi_regp + reg);
}
static inline void sun3scsi_write(int reg, int value)
{
sun3_scsi_regp[reg] = value;
out_8(sun3_scsi_regp + reg, value);
}
#ifndef SUN3_SCSI_VME
@ -137,192 +127,7 @@ static inline void sun3_udc_write(unsigned short val, unsigned char reg)
}
#endif
/*
* XXX: status debug
*/
static struct Scsi_Host *default_instance;
/*
* Function : int sun3scsi_detect(struct scsi_host_template * tpnt)
*
* Purpose : initializes mac NCR5380 driver based on the
* command line / compile time port and irq definitions.
*
* Inputs : tpnt - template for this SCSI adapter.
*
* Returns : 1 if a host adapter was found, 0 if not.
*
*/
static int __init sun3scsi_detect(struct scsi_host_template *tpnt)
{
unsigned long ioaddr, irq;
static int called = 0;
struct Scsi_Host *instance;
#ifdef SUN3_SCSI_VME
int i;
unsigned long addrs[3] = { IOBASE_SUN3_VMESCSI,
IOBASE_SUN3_VMESCSI + 0x4000,
0 };
unsigned long vecs[3] = { SUN3_VEC_VMESCSI0,
SUN3_VEC_VMESCSI1,
0 };
#endif
/* check that this machine has an onboard 5380 */
switch(idprom->id_machtype) {
#ifdef SUN3_SCSI_VME
case SM_SUN3|SM_3_160:
case SM_SUN3|SM_3_260:
break;
#else
case SM_SUN3|SM_3_50:
case SM_SUN3|SM_3_60:
break;
#endif
default:
return 0;
}
if(called)
return 0;
#ifdef SUN3_SCSI_VME
tpnt->proc_name = "Sun3 5380 VME SCSI";
#else
tpnt->proc_name = "Sun3 5380 SCSI";
#endif
/* setup variables */
if (setup_can_queue > 0)
tpnt->can_queue = setup_can_queue;
if (setup_cmd_per_lun > 0)
tpnt->cmd_per_lun = setup_cmd_per_lun;
if (setup_sg_tablesize >= 0)
tpnt->sg_tablesize = setup_sg_tablesize;
if (setup_hostid >= 0)
tpnt->this_id = setup_hostid;
else {
/* use 7 as default */
tpnt->this_id = 7;
}
#ifdef SUN3_SCSI_VME
ioaddr = 0;
for (i = 0; addrs[i] != 0; i++) {
unsigned char x;
ioaddr = (unsigned long)sun3_ioremap(addrs[i], PAGE_SIZE,
SUN3_PAGE_TYPE_VME16);
irq = vecs[i];
sun3_scsi_regp = (unsigned char *)ioaddr;
dregs = (struct sun3_dma_regs *)(((unsigned char *)ioaddr) + 8);
if (sun3_map_test((unsigned long)dregs, &x)) {
unsigned short oldcsr;
oldcsr = dregs->csr;
dregs->csr = 0;
udelay(SUN3_DMA_DELAY);
if (dregs->csr == 0x1400)
break;
dregs->csr = oldcsr;
}
iounmap((void *)ioaddr);
ioaddr = 0;
}
if (!ioaddr)
return 0;
#else
irq = IRQ_SUN3_SCSI;
ioaddr = (unsigned long)ioremap(IOBASE_SUN3_SCSI, PAGE_SIZE);
sun3_scsi_regp = (unsigned char *)ioaddr;
dregs = (struct sun3_dma_regs *)(((unsigned char *)ioaddr) + 8);
if((udc_regs = dvma_malloc(sizeof(struct sun3_udc_regs)))
== NULL) {
printk("SUN3 Scsi couldn't allocate DVMA memory!\n");
return 0;
}
#endif
#ifdef SUPPORT_TAGS
if (setup_use_tagged_queuing < 0)
setup_use_tagged_queuing = 1;
#endif
instance = scsi_register (tpnt, sizeof(struct NCR5380_hostdata));
if(instance == NULL)
return 0;
default_instance = instance;
instance->io_port = (unsigned long) ioaddr;
instance->irq = irq;
NCR5380_init(instance, 0);
instance->n_io_port = 32;
if (request_irq(instance->irq, scsi_sun3_intr,
0, "Sun3SCSI-5380", instance)) {
#ifndef REAL_DMA
printk("scsi%d: IRQ%d not free, interrupts disabled\n",
instance->host_no, instance->irq);
instance->irq = NO_IRQ;
#else
printk("scsi%d: IRQ%d not free, bailing out\n",
instance->host_no, instance->irq);
return 0;
#endif
}
dregs->csr = 0;
udelay(SUN3_DMA_DELAY);
dregs->csr = CSR_SCSI | CSR_FIFO | CSR_INTR;
udelay(SUN3_DMA_DELAY);
dregs->fifo_count = 0;
#ifdef SUN3_SCSI_VME
dregs->fifo_count_hi = 0;
dregs->dma_addr_hi = 0;
dregs->dma_addr_lo = 0;
dregs->dma_count_hi = 0;
dregs->dma_count_lo = 0;
dregs->ivect = VME_DATA24 | (instance->irq & 0xff);
#endif
called = 1;
#ifdef RESET_BOOT
sun3_scsi_reset_boot(instance);
#endif
return 1;
}
static int sun3scsi_release(struct Scsi_Host *shpnt)
{
if (shpnt->irq != NO_IRQ)
free_irq(shpnt->irq, shpnt);
iounmap((void *)sun3_scsi_regp);
NCR5380_exit(shpnt);
return 0;
}
#ifdef RESET_BOOT
/*
* Our 'bus reset on boot' function
*/
static void sun3_scsi_reset_boot(struct Scsi_Host *instance)
{
unsigned long end;
@ -671,11 +476,21 @@ static int sun3scsi_dma_finish(int write_flag)
#include "sun3_NCR5380.c"
static struct scsi_host_template driver_template = {
#ifdef SUN3_SCSI_VME
#define SUN3_SCSI_NAME "Sun3 NCR5380 VME SCSI"
#define DRV_MODULE_NAME "sun3_scsi_vme"
#else
#define SUN3_SCSI_NAME "Sun3 NCR5380 SCSI"
#define DRV_MODULE_NAME "sun3_scsi"
#endif
#define PFX DRV_MODULE_NAME ": "
static struct scsi_host_template sun3_scsi_template = {
.module = THIS_MODULE,
.proc_name = DRV_MODULE_NAME,
.show_info = sun3scsi_show_info,
.name = SUN3_SCSI_NAME,
.detect = sun3scsi_detect,
.release = sun3scsi_release,
.info = sun3scsi_info,
.queuecommand = sun3scsi_queue_command,
.eh_abort_handler = sun3scsi_abort,
@ -687,7 +502,172 @@ static struct scsi_host_template driver_template = {
.use_clustering = DISABLE_CLUSTERING
};
static int __init sun3_scsi_probe(struct platform_device *pdev)
{
struct Scsi_Host *instance;
int error;
struct resource *irq, *mem;
unsigned char *ioaddr;
#ifdef SUN3_SCSI_VME
int i;
#endif
#include "scsi_module.c"
if (setup_can_queue > 0)
sun3_scsi_template.can_queue = setup_can_queue;
if (setup_cmd_per_lun > 0)
sun3_scsi_template.cmd_per_lun = setup_cmd_per_lun;
if (setup_sg_tablesize >= 0)
sun3_scsi_template.sg_tablesize = setup_sg_tablesize;
if (setup_hostid >= 0)
sun3_scsi_template.this_id = setup_hostid & 7;
#ifdef SUPPORT_TAGS
if (setup_use_tagged_queuing < 0)
setup_use_tagged_queuing = 1;
#endif
#ifdef SUN3_SCSI_VME
ioaddr = NULL;
for (i = 0; i < 2; i++) {
unsigned char x;
irq = platform_get_resource(pdev, IORESOURCE_IRQ, i);
mem = platform_get_resource(pdev, IORESOURCE_MEM, i);
if (!irq || !mem)
break;
ioaddr = sun3_ioremap(mem->start, resource_size(mem),
SUN3_PAGE_TYPE_VME16);
dregs = (struct sun3_dma_regs *)(ioaddr + 8);
if (sun3_map_test((unsigned long)dregs, &x)) {
unsigned short oldcsr;
oldcsr = dregs->csr;
dregs->csr = 0;
udelay(SUN3_DMA_DELAY);
if (dregs->csr == 0x1400)
break;
dregs->csr = oldcsr;
}
iounmap(ioaddr);
ioaddr = NULL;
}
if (!ioaddr)
return -ENODEV;
#else
irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!irq || !mem)
return -ENODEV;
ioaddr = ioremap(mem->start, resource_size(mem));
dregs = (struct sun3_dma_regs *)(ioaddr + 8);
udc_regs = dvma_malloc(sizeof(struct sun3_udc_regs));
if (!udc_regs) {
pr_err(PFX "couldn't allocate DVMA memory!\n");
iounmap(ioaddr);
return -ENOMEM;
}
#endif
sun3_scsi_regp = ioaddr;
instance = scsi_host_alloc(&sun3_scsi_template,
sizeof(struct NCR5380_hostdata));
if (!instance) {
error = -ENOMEM;
goto fail_alloc;
}
default_instance = instance;
instance->io_port = (unsigned long)ioaddr;
instance->irq = irq->start;
NCR5380_init(instance, 0);
error = request_irq(instance->irq, scsi_sun3_intr, 0,
"NCR5380", instance);
if (error) {
#ifdef REAL_DMA
pr_err(PFX "scsi%d: IRQ %d not free, bailing out\n",
instance->host_no, instance->irq);
goto fail_irq;
#else
pr_warn(PFX "scsi%d: IRQ %d not free, interrupts disabled\n",
instance->host_no, instance->irq);
instance->irq = NO_IRQ;
#endif
}
dregs->csr = 0;
udelay(SUN3_DMA_DELAY);
dregs->csr = CSR_SCSI | CSR_FIFO | CSR_INTR;
udelay(SUN3_DMA_DELAY);
dregs->fifo_count = 0;
#ifdef SUN3_SCSI_VME
dregs->fifo_count_hi = 0;
dregs->dma_addr_hi = 0;
dregs->dma_addr_lo = 0;
dregs->dma_count_hi = 0;
dregs->dma_count_lo = 0;
dregs->ivect = VME_DATA24 | (instance->irq & 0xff);
#endif
#ifdef RESET_BOOT
sun3_scsi_reset_boot(instance);
#endif
error = scsi_add_host(instance, NULL);
if (error)
goto fail_host;
platform_set_drvdata(pdev, instance);
scsi_scan_host(instance);
return 0;
fail_host:
if (instance->irq != NO_IRQ)
free_irq(instance->irq, instance);
fail_irq:
NCR5380_exit(instance);
scsi_host_put(instance);
fail_alloc:
if (udc_regs)
dvma_free(udc_regs);
iounmap(sun3_scsi_regp);
return error;
}
static int __exit sun3_scsi_remove(struct platform_device *pdev)
{
struct Scsi_Host *instance = platform_get_drvdata(pdev);
scsi_remove_host(instance);
if (instance->irq != NO_IRQ)
free_irq(instance->irq, instance);
NCR5380_exit(instance);
scsi_host_put(instance);
if (udc_regs)
dvma_free(udc_regs);
iounmap(sun3_scsi_regp);
return 0;
}
static struct platform_driver sun3_scsi_driver = {
.remove = __exit_p(sun3_scsi_remove),
.driver = {
.name = DRV_MODULE_NAME,
.owner = THIS_MODULE,
},
};
module_platform_driver_probe(sun3_scsi_driver, sun3_scsi_probe);
MODULE_ALIAS("platform:" DRV_MODULE_NAME);
MODULE_LICENSE("GPL");

17
drivers/scsi/sun3_scsi.h
View File

@ -18,25 +18,8 @@
#ifndef SUN3_SCSI_H
#define SUN3_SCSI_H
/*
* Int: level 2 autovector
* IO: type 1, base 0x00140000, 5 bits phys space: A<4..0>
*/
#define IRQ_SUN3_SCSI 2
#define IOBASE_SUN3_SCSI 0x00140000
#define IOBASE_SUN3_VMESCSI 0xff200000
#define MAX_TAGS 32
#include <scsi/scsicam.h>
#ifdef SUN3_SCSI_VME
#define SUN3_SCSI_NAME "Sun3 NCR5380 VME SCSI"
#else
#define SUN3_SCSI_NAME "Sun3 NCR5380 SCSI"
#endif
#define NCR5380_implementation_fields /* none */
#define NCR5380_local_declare() \