sun_esp: Convert to pure OF driver.
Signed-off-by: David S. Miller <davem@davemloft.net>hifive-unleashed-5.1
David S. Miller
parent
27167e0e63
commit
05bb5e93f2
|
|
@ -10,21 +10,21 @@
|
|||
#include <linux/mm.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/dma-mapping.h>
|
||||
#include <linux/of.h>
|
||||
#include <linux/of_device.h>
|
||||
|
||||
#include <asm/irq.h>
|
||||
#include <asm/io.h>
|
||||
#include <asm/dma.h>
|
||||
|
||||
#include <asm/sbus.h>
|
||||
|
||||
#include <scsi/scsi_host.h>
|
||||
|
||||
#include "esp_scsi.h"
|
||||
|
||||
#define DRV_MODULE_NAME "sun_esp"
|
||||
#define PFX DRV_MODULE_NAME ": "
|
||||
#define DRV_VERSION "1.000"
|
||||
#define DRV_MODULE_RELDATE "April 19, 2007"
|
||||
#define DRV_VERSION "1.100"
|
||||
#define DRV_MODULE_RELDATE "August 27, 2008"
|
||||
|
||||
#define dma_read32(REG) \
|
||||
sbus_readl(esp->dma_regs + (REG))
|
||||
|
|
@ -80,18 +80,18 @@ static int __devinit esp_sbus_setup_dma(struct esp *esp,
|
|||
|
||||
static int __devinit esp_sbus_map_regs(struct esp *esp, int hme)
|
||||
{
|
||||
struct sbus_dev *sdev = esp->dev;
|
||||
struct of_device *op = esp->dev;
|
||||
struct resource *res;
|
||||
|
||||
/* On HME, two reg sets exist, first is DVMA,
|
||||
* second is ESP registers.
|
||||
*/
|
||||
if (hme)
|
||||
res = &sdev->resource[1];
|
||||
res = &op->resource[1];
|
||||
else
|
||||
res = &sdev->resource[0];
|
||||
res = &op->resource[0];
|
||||
|
||||
esp->regs = sbus_ioremap(res, 0, SBUS_ESP_REG_SIZE, "ESP");
|
||||
esp->regs = of_ioremap(res, 0, SBUS_ESP_REG_SIZE, "ESP");
|
||||
if (!esp->regs)
|
||||
return -ENOMEM;
|
||||
|
||||
|
|
@ -100,9 +100,9 @@ static int __devinit esp_sbus_map_regs(struct esp *esp, int hme)
|
|||
|
||||
static int __devinit esp_sbus_map_command_block(struct esp *esp)
|
||||
{
|
||||
struct sbus_dev *sdev = esp->dev;
|
||||
struct of_device *op = esp->dev;
|
||||
|
||||
esp->command_block = dma_alloc_coherent(&sdev->ofdev.dev, 16,
|
||||
esp->command_block = dma_alloc_coherent(&op->dev, 16,
|
||||
&esp->command_block_dma,
|
||||
GFP_ATOMIC);
|
||||
if (!esp->command_block)
|
||||
|
|
@ -113,17 +113,18 @@ static int __devinit esp_sbus_map_command_block(struct esp *esp)
|
|||
static int __devinit esp_sbus_register_irq(struct esp *esp)
|
||||
{
|
||||
struct Scsi_Host *host = esp->host;
|
||||
struct sbus_dev *sdev = esp->dev;
|
||||
struct of_device *op = esp->dev;
|
||||
|
||||
host->irq = sdev->irqs[0];
|
||||
host->irq = op->irqs[0];
|
||||
return request_irq(host->irq, scsi_esp_intr, IRQF_SHARED, "ESP", esp);
|
||||
}
|
||||
|
||||
static void __devinit esp_get_scsi_id(struct esp *esp)
|
||||
static void __devinit esp_get_scsi_id(struct esp *esp, struct of_device *espdma)
|
||||
{
|
||||
struct sbus_dev *sdev = esp->dev;
|
||||
struct device_node *dp = sdev->ofdev.node;
|
||||
struct of_device *op = esp->dev;
|
||||
struct device_node *dp;
|
||||
|
||||
dp = op->node;
|
||||
esp->scsi_id = of_getintprop_default(dp, "initiator-id", 0xff);
|
||||
if (esp->scsi_id != 0xff)
|
||||
goto done;
|
||||
|
|
@ -132,13 +133,7 @@ static void __devinit esp_get_scsi_id(struct esp *esp)
|
|||
if (esp->scsi_id != 0xff)
|
||||
goto done;
|
||||
|
||||
if (!sdev->bus) {
|
||||
/* SUN4 */
|
||||
esp->scsi_id = 7;
|
||||
goto done;
|
||||
}
|
||||
|
||||
esp->scsi_id = of_getintprop_default(sdev->bus->ofdev.node,
|
||||
esp->scsi_id = of_getintprop_default(espdma->node,
|
||||
"scsi-initiator-id", 7);
|
||||
|
||||
done:
|
||||
|
|
@ -148,9 +143,10 @@ done:
|
|||
|
||||
static void __devinit esp_get_differential(struct esp *esp)
|
||||
{
|
||||
struct sbus_dev *sdev = esp->dev;
|
||||
struct device_node *dp = sdev->ofdev.node;
|
||||
struct of_device *op = esp->dev;
|
||||
struct device_node *dp;
|
||||
|
||||
dp = op->node;
|
||||
if (of_find_property(dp, "differential", NULL))
|
||||
esp->flags |= ESP_FLAG_DIFFERENTIAL;
|
||||
else
|
||||
|
|
@ -159,19 +155,16 @@ static void __devinit esp_get_differential(struct esp *esp)
|
|||
|
||||
static void __devinit esp_get_clock_params(struct esp *esp)
|
||||
{
|
||||
struct sbus_dev *sdev = esp->dev;
|
||||
struct device_node *dp = sdev->ofdev.node;
|
||||
struct device_node *bus_dp;
|
||||
struct of_device *op = esp->dev;
|
||||
struct device_node *bus_dp, *dp;
|
||||
int fmhz;
|
||||
|
||||
bus_dp = NULL;
|
||||
if (sdev != NULL && sdev->bus != NULL)
|
||||
bus_dp = sdev->bus->ofdev.node;
|
||||
dp = op->node;
|
||||
bus_dp = dp->parent;
|
||||
|
||||
fmhz = of_getintprop_default(dp, "clock-frequency", 0);
|
||||
if (fmhz == 0)
|
||||
fmhz = (!bus_dp) ? 0 :
|
||||
of_getintprop_default(bus_dp, "clock-frequency", 0);
|
||||
fmhz = of_getintprop_default(bus_dp, "clock-frequency", 0);
|
||||
|
||||
esp->cfreq = fmhz;
|
||||
}
|
||||
|
|
@ -179,22 +172,19 @@ static void __devinit esp_get_clock_params(struct esp *esp)
|
|||
static void __devinit esp_get_bursts(struct esp *esp, struct of_device *dma_of)
|
||||
{
|
||||
struct device_node *dma_dp = dma_of->node;
|
||||
struct sbus_dev *sdev = esp->dev;
|
||||
struct of_device *op = esp->dev;
|
||||
struct device_node *dp;
|
||||
u8 bursts, val;
|
||||
|
||||
dp = sdev->ofdev.node;
|
||||
dp = op->node;
|
||||
bursts = of_getintprop_default(dp, "burst-sizes", 0xff);
|
||||
val = of_getintprop_default(dma_dp, "burst-sizes", 0xff);
|
||||
if (val != 0xff)
|
||||
bursts &= val;
|
||||
|
||||
if (sdev->bus) {
|
||||
u8 val = of_getintprop_default(sdev->bus->ofdev.node,
|
||||
"burst-sizes", 0xff);
|
||||
if (val != 0xff)
|
||||
bursts &= val;
|
||||
}
|
||||
val = of_getintprop_default(dma_dp->parent, "burst-sizes", 0xff);
|
||||
if (val != 0xff)
|
||||
bursts &= val;
|
||||
|
||||
if (bursts == 0xff ||
|
||||
(bursts & DMA_BURST16) == 0 ||
|
||||
|
|
@ -206,7 +196,7 @@ static void __devinit esp_get_bursts(struct esp *esp, struct of_device *dma_of)
|
|||
|
||||
static void __devinit esp_sbus_get_props(struct esp *esp, struct of_device *espdma)
|
||||
{
|
||||
esp_get_scsi_id(esp);
|
||||
esp_get_scsi_id(esp, espdma);
|
||||
esp_get_differential(esp);
|
||||
esp_get_clock_params(esp);
|
||||
esp_get_bursts(esp, espdma);
|
||||
|
|
@ -225,33 +215,33 @@ static u8 sbus_esp_read8(struct esp *esp, unsigned long reg)
|
|||
static dma_addr_t sbus_esp_map_single(struct esp *esp, void *buf,
|
||||
size_t sz, int dir)
|
||||
{
|
||||
struct sbus_dev *sdev = esp->dev;
|
||||
struct of_device *op = esp->dev;
|
||||
|
||||
return dma_map_single(&sdev->ofdev.dev, buf, sz, dir);
|
||||
return dma_map_single(&op->dev, buf, sz, dir);
|
||||
}
|
||||
|
||||
static int sbus_esp_map_sg(struct esp *esp, struct scatterlist *sg,
|
||||
int num_sg, int dir)
|
||||
{
|
||||
struct sbus_dev *sdev = esp->dev;
|
||||
struct of_device *op = esp->dev;
|
||||
|
||||
return dma_map_sg(&sdev->ofdev.dev, sg, num_sg, dir);
|
||||
return dma_map_sg(&op->dev, sg, num_sg, dir);
|
||||
}
|
||||
|
||||
static void sbus_esp_unmap_single(struct esp *esp, dma_addr_t addr,
|
||||
size_t sz, int dir)
|
||||
{
|
||||
struct sbus_dev *sdev = esp->dev;
|
||||
struct of_device *op = esp->dev;
|
||||
|
||||
dma_unmap_single(&sdev->ofdev.dev, addr, sz, dir);
|
||||
dma_unmap_single(&op->dev, addr, sz, dir);
|
||||
}
|
||||
|
||||
static void sbus_esp_unmap_sg(struct esp *esp, struct scatterlist *sg,
|
||||
int num_sg, int dir)
|
||||
{
|
||||
struct sbus_dev *sdev = esp->dev;
|
||||
struct of_device *op = esp->dev;
|
||||
|
||||
dma_unmap_sg(&sdev->ofdev.dev, sg, num_sg, dir);
|
||||
dma_unmap_sg(&op->dev, sg, num_sg, dir);
|
||||
}
|
||||
|
||||
static int sbus_esp_irq_pending(struct esp *esp)
|
||||
|
|
@ -265,14 +255,14 @@ static void sbus_esp_reset_dma(struct esp *esp)
|
|||
{
|
||||
int can_do_burst16, can_do_burst32, can_do_burst64;
|
||||
int can_do_sbus64, lim;
|
||||
struct sbus_dev *sdev;
|
||||
struct of_device *op;
|
||||
u32 val;
|
||||
|
||||
can_do_burst16 = (esp->bursts & DMA_BURST16) != 0;
|
||||
can_do_burst32 = (esp->bursts & DMA_BURST32) != 0;
|
||||
can_do_burst64 = 0;
|
||||
can_do_sbus64 = 0;
|
||||
sdev = esp->dev;
|
||||
op = esp->dev;
|
||||
if (sbus_can_dma_64bit())
|
||||
can_do_sbus64 = 1;
|
||||
if (sbus_can_burst64())
|
||||
|
|
@ -302,7 +292,7 @@ static void sbus_esp_reset_dma(struct esp *esp)
|
|||
|
||||
if (can_do_sbus64) {
|
||||
esp->prev_hme_dmacsr |= DMA_SCSI_SBUS64;
|
||||
sbus_set_sbus64(&sdev->ofdev.dev, esp->bursts);
|
||||
sbus_set_sbus64(&op->dev, esp->bursts);
|
||||
}
|
||||
|
||||
lim = 1000;
|
||||
|
|
@ -496,10 +486,8 @@ static const struct esp_driver_ops sbus_esp_ops = {
|
|||
.dma_error = sbus_esp_dma_error,
|
||||
};
|
||||
|
||||
static int __devinit esp_sbus_probe_one(struct device *dev,
|
||||
struct sbus_dev *esp_dev,
|
||||
static int __devinit esp_sbus_probe_one(struct of_device *op,
|
||||
struct of_device *espdma,
|
||||
struct sbus_bus *sbus,
|
||||
int hme)
|
||||
{
|
||||
struct scsi_host_template *tpnt = &scsi_esp_template;
|
||||
|
|
@ -517,7 +505,7 @@ static int __devinit esp_sbus_probe_one(struct device *dev,
|
|||
esp = shost_priv(host);
|
||||
|
||||
esp->host = host;
|
||||
esp->dev = esp_dev;
|
||||
esp->dev = op;
|
||||
esp->ops = &sbus_esp_ops;
|
||||
|
||||
if (hme)
|
||||
|
|
@ -551,9 +539,9 @@ static int __devinit esp_sbus_probe_one(struct device *dev,
|
|||
dma_write32(val & ~DMA_RST_SCSI, DMA_CSR);
|
||||
}
|
||||
|
||||
dev_set_drvdata(&esp_dev->ofdev.dev, esp);
|
||||
dev_set_drvdata(&op->dev, esp);
|
||||
|
||||
err = scsi_esp_register(esp, dev);
|
||||
err = scsi_esp_register(esp, &op->dev);
|
||||
if (err)
|
||||
goto fail_free_irq;
|
||||
|
||||
|
|
@ -562,22 +550,21 @@ static int __devinit esp_sbus_probe_one(struct device *dev,
|
|||
fail_free_irq:
|
||||
free_irq(host->irq, esp);
|
||||
fail_unmap_command_block:
|
||||
dma_free_coherent(&esp_dev->ofdev.dev, 16,
|
||||
dma_free_coherent(&op->dev, 16,
|
||||
esp->command_block,
|
||||
esp->command_block_dma);
|
||||
fail_unmap_regs:
|
||||
sbus_iounmap(esp->regs, SBUS_ESP_REG_SIZE);
|
||||
of_iounmap(&op->resource[(hme ? 1 : 0)], esp->regs, SBUS_ESP_REG_SIZE);
|
||||
fail_unlink:
|
||||
scsi_host_put(host);
|
||||
fail:
|
||||
return err;
|
||||
}
|
||||
|
||||
static int __devinit esp_sbus_probe(struct of_device *dev, const struct of_device_id *match)
|
||||
static int __devinit esp_sbus_probe(struct of_device *op, const struct of_device_id *match)
|
||||
{
|
||||
struct sbus_dev *sdev = to_sbus_device(&dev->dev);
|
||||
struct device_node *dma_node = NULL;
|
||||
struct device_node *dp = dev->node;
|
||||
struct device_node *dp = op->node;
|
||||
struct of_device *dma_of = NULL;
|
||||
int hme = 0;
|
||||
|
||||
|
|
@ -586,7 +573,7 @@ static int __devinit esp_sbus_probe(struct of_device *dev, const struct of_devic
|
|||
!strcmp(dp->parent->name, "dma")))
|
||||
dma_node = dp->parent;
|
||||
else if (!strcmp(dp->name, "SUNW,fas")) {
|
||||
dma_node = sdev->ofdev.node;
|
||||
dma_node = op->node;
|
||||
hme = 1;
|
||||
}
|
||||
if (dma_node)
|
||||
|
|
@ -594,16 +581,15 @@ static int __devinit esp_sbus_probe(struct of_device *dev, const struct of_devic
|
|||
if (!dma_of)
|
||||
return -ENODEV;
|
||||
|
||||
return esp_sbus_probe_one(&dev->dev, sdev, dma_of,
|
||||
sdev->bus, hme);
|
||||
return esp_sbus_probe_one(op, dma_of, hme);
|
||||
}
|
||||
|
||||
static int __devexit esp_sbus_remove(struct of_device *dev)
|
||||
static int __devexit esp_sbus_remove(struct of_device *op)
|
||||
{
|
||||
struct esp *esp = dev_get_drvdata(&dev->dev);
|
||||
struct sbus_dev *sdev = esp->dev;
|
||||
struct esp *esp = dev_get_drvdata(&op->dev);
|
||||
struct of_device *dma_of = esp->dma;
|
||||
unsigned int irq = esp->host->irq;
|
||||
bool is_hme;
|
||||
u32 val;
|
||||
|
||||
scsi_esp_unregister(esp);
|
||||
|
|
@ -613,15 +599,21 @@ static int __devexit esp_sbus_remove(struct of_device *dev)
|
|||
dma_write32(val & ~DMA_INT_ENAB, DMA_CSR);
|
||||
|
||||
free_irq(irq, esp);
|
||||
dma_free_coherent(&sdev->ofdev.dev, 16,
|
||||
|
||||
is_hme = (esp->dmarev == dvmahme);
|
||||
|
||||
dma_free_coherent(&op->dev, 16,
|
||||
esp->command_block,
|
||||
esp->command_block_dma);
|
||||
sbus_iounmap(esp->regs, SBUS_ESP_REG_SIZE);
|
||||
of_iounmap(&op->resource[(is_hme ? 1 : 0)], esp->regs,
|
||||
SBUS_ESP_REG_SIZE);
|
||||
of_iounmap(&dma_of->resource[0], esp->dma_regs,
|
||||
resource_size(&dma_of->resource[0]));
|
||||
|
||||
scsi_host_put(esp->host);
|
||||
|
||||
dev_set_drvdata(&op->dev, NULL);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
@ -648,7 +640,7 @@ static struct of_platform_driver esp_sbus_driver = {
|
|||
|
||||
static int __init sunesp_init(void)
|
||||
{
|
||||
return of_register_driver(&esp_sbus_driver, &sbus_bus_type);
|
||||
return of_register_driver(&esp_sbus_driver, &of_bus_type);
|
||||
}
|
||||
|
||||
static void __exit sunesp_exit(void)
|
||||
|
|
|
|||
Loading…
Reference in New Issue