* Currently there is support for
* - OpenFirmware
* - PCI
+ * - PDEV (generic platform device centralized driver model)
*
* (c) 2007 Sebastian Siewior <bigeasy@linutronix.de>
*
#include <linux/usb.h>
#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <linux/usb/isp1760.h>
+#include <linux/usb/hcd.h>
-#include "../core/hcd.h"
#include "isp1760-hcd.h"
-#ifdef CONFIG_USB_ISP1760_OF
+#ifdef CONFIG_PPC_OF
#include <linux/of.h>
#include <linux/of_platform.h>
#endif
-#ifdef CONFIG_USB_ISP1760_PCI
+#ifdef CONFIG_PCI
#include <linux/pci.h>
#endif
-#ifdef CONFIG_USB_ISP1760_OF
+#ifdef CONFIG_PPC_OF
static int of_isp1760_probe(struct of_device *dev,
const struct of_device_id *match)
{
struct usb_hcd *hcd;
- struct device_node *dp = dev->node;
+ struct device_node *dp = dev->dev.of_node;
struct resource *res;
struct resource memory;
struct of_irq oirq;
int virq;
- u64 res_len;
+ resource_size_t res_len;
int ret;
const unsigned int *prop;
unsigned int devflags = 0;
if (ret)
return -ENXIO;
- res = request_mem_region(memory.start, memory.end - memory.start + 1,
- dev_name(&dev->dev));
+ res_len = resource_size(&memory);
+
+ res = request_mem_region(memory.start, res_len, dev_name(&dev->dev));
if (!res)
return -EBUSY;
- res_len = memory.end - memory.start + 1;
-
if (of_irq_map_one(dp, 0, &oirq)) {
ret = -ENODEV;
goto release_reg;
if (of_device_is_compatible(dp, "nxp,usb-isp1761"))
devflags |= ISP1760_FLAG_ISP1761;
- if (of_get_property(dp, "port1-disable", NULL) != NULL)
- devflags |= ISP1760_FLAG_PORT1_DIS;
-
/* Some systems wire up only 16 of the 32 data lines */
prop = of_get_property(dp, "bus-width", NULL);
if (prop && *prop == 16)
return ret;
release_reg:
- release_mem_region(memory.start, memory.end - memory.start + 1);
+ release_mem_region(memory.start, res_len);
return ret;
}
return 0;
}
-static struct of_device_id of_isp1760_match[] = {
+static const struct of_device_id of_isp1760_match[] = {
{
.compatible = "nxp,usb-isp1760",
},
MODULE_DEVICE_TABLE(of, of_isp1760_match);
static struct of_platform_driver isp1760_of_driver = {
- .name = "nxp-isp1760",
- .match_table = of_isp1760_match,
+ .driver = {
+ .name = "nxp-isp1760",
+ .owner = THIS_MODULE,
+ .of_match_table = of_isp1760_match,
+ },
.probe = of_isp1760_probe,
.remove = of_isp1760_remove,
};
#endif
-#ifdef CONFIG_USB_ISP1760_PCI
-static u32 nxp_pci_io_base;
-static u32 iolength;
-static u32 pci_mem_phy0;
-static u32 length;
-static u8 __iomem *chip_addr;
-static u8 __iomem *iobase;
-
+#ifdef CONFIG_PCI
static int __devinit isp1761_pci_probe(struct pci_dev *dev,
const struct pci_device_id *id)
{
u8 latency, limit;
__u32 reg_data;
int retry_count;
- int length;
- int status = 1;
struct usb_hcd *hcd;
unsigned int devflags = 0;
+ int ret_status = 0;
+
+ resource_size_t pci_mem_phy0;
+ resource_size_t memlength;
+
+ u8 __iomem *chip_addr;
+ u8 __iomem *iobase;
+ resource_size_t nxp_pci_io_base;
+ resource_size_t iolength;
if (usb_disabled())
return -ENODEV;
iobase = ioremap_nocache(nxp_pci_io_base, iolength);
if (!iobase) {
printk(KERN_ERR "ioremap #1\n");
- release_mem_region(nxp_pci_io_base, iolength);
- return -ENOMEM;
+ ret_status = -ENOMEM;
+ goto cleanup1;
}
/* Grab the PLX PCI shared memory of the ISP 1761 we need */
pci_mem_phy0 = pci_resource_start(dev, 3);
- length = pci_resource_len(dev, 3);
-
- if (length < 0xffff) {
- printk(KERN_ERR "memory length for this resource is less than "
- "required\n");
- release_mem_region(nxp_pci_io_base, iolength);
- iounmap(iobase);
- return -ENOMEM;
+ memlength = pci_resource_len(dev, 3);
+ if (memlength < 0xffff) {
+ printk(KERN_ERR "memory length for this resource is wrong\n");
+ ret_status = -ENOMEM;
+ goto cleanup2;
}
- if (!request_mem_region(pci_mem_phy0, length, "ISP-PCI")) {
+ if (!request_mem_region(pci_mem_phy0, memlength, "ISP-PCI")) {
printk(KERN_ERR "host controller already in use\n");
- release_mem_region(nxp_pci_io_base, iolength);
- iounmap(iobase);
- return -EBUSY;
+ ret_status = -EBUSY;
+ goto cleanup2;
+ }
+
+ /* map available memory */
+ chip_addr = ioremap_nocache(pci_mem_phy0,memlength);
+ if (!chip_addr) {
+ printk(KERN_ERR "Error ioremap failed\n");
+ ret_status = -ENOMEM;
+ goto cleanup3;
}
/* bad pci latencies can contribute to overruns */
* */
writel(0xface, chip_addr + HC_SCRATCH_REG);
udelay(100);
- reg_data = readl(chip_addr + HC_SCRATCH_REG);
+ reg_data = readl(chip_addr + HC_SCRATCH_REG) & 0x0000ffff;
retry_count--;
}
+ iounmap(chip_addr);
+
/* Host Controller presence is detected by writing to scratch register
* and reading back and checking the contents are same or not
*/
if (reg_data != 0xFACE) {
- err("scratch register mismatch %x", reg_data);
- goto clean;
+ dev_err(&dev->dev, "scratch register mismatch %x\n", reg_data);
+ ret_status = -ENOMEM;
+ goto cleanup3;
}
pci_set_master(dev);
- status = readl(iobase + 0x68);
- status |= 0x900;
- writel(status, iobase + 0x68);
+ /* configure PLX PCI chip to pass interrupts */
+#define PLX_INT_CSR_REG 0x68
+ reg_data = readl(iobase + PLX_INT_CSR_REG);
+ reg_data |= 0x900;
+ writel(reg_data, iobase + PLX_INT_CSR_REG);
dev->dev.dma_mask = NULL;
- hcd = isp1760_register(pci_mem_phy0, length, dev->irq,
+ hcd = isp1760_register(pci_mem_phy0, memlength, dev->irq,
IRQF_SHARED | IRQF_DISABLED, &dev->dev, dev_name(&dev->dev),
devflags);
+ if (IS_ERR(hcd)) {
+ ret_status = -ENODEV;
+ goto cleanup3;
+ }
+
+ /* done with PLX IO access */
+ iounmap(iobase);
+ release_mem_region(nxp_pci_io_base, iolength);
+
pci_set_drvdata(dev, hcd);
- if (!hcd)
- return 0;
-clean:
- status = -ENODEV;
+ return 0;
+
+cleanup3:
+ release_mem_region(pci_mem_phy0, memlength);
+cleanup2:
iounmap(iobase);
- release_mem_region(pci_mem_phy0, length);
+cleanup1:
release_mem_region(nxp_pci_io_base, iolength);
- return status;
+ return ret_status;
}
+
static void isp1761_pci_remove(struct pci_dev *dev)
{
struct usb_hcd *hcd;
usb_put_hcd(hcd);
pci_disable_device(dev);
-
- iounmap(iobase);
- iounmap(chip_addr);
-
- release_mem_region(nxp_pci_io_base, iolength);
- release_mem_region(pci_mem_phy0, length);
}
static void isp1761_pci_shutdown(struct pci_dev *dev)
printk(KERN_ERR "ips1761_pci_shutdown\n");
}
-static const struct pci_device_id isp1760_plx [] = { {
- /* handle any USB 2.0 EHCI controller */
- PCI_DEVICE_CLASS(((PCI_CLASS_BRIDGE_OTHER << 8) | (0x06 << 16)), ~0),
- .driver_data = 0,
-},
-{ /* end: all zeroes */ }
+static const struct pci_device_id isp1760_plx [] = {
+ {
+ .class = PCI_CLASS_BRIDGE_OTHER << 8,
+ .class_mask = ~0,
+ .vendor = PCI_VENDOR_ID_PLX,
+ .device = 0x5406,
+ .subvendor = PCI_VENDOR_ID_PLX,
+ .subdevice = 0x9054,
+ },
+ { }
};
MODULE_DEVICE_TABLE(pci, isp1760_plx);
};
#endif
+static int __devinit isp1760_plat_probe(struct platform_device *pdev)
+{
+ int ret = 0;
+ struct usb_hcd *hcd;
+ struct resource *mem_res;
+ struct resource *irq_res;
+ resource_size_t mem_size;
+ struct isp1760_platform_data *priv = pdev->dev.platform_data;
+ unsigned int devflags = 0;
+ unsigned long irqflags = IRQF_SHARED | IRQF_DISABLED;
+
+ mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!mem_res) {
+ pr_warning("isp1760: Memory resource not available\n");
+ ret = -ENODEV;
+ goto out;
+ }
+ mem_size = resource_size(mem_res);
+ if (!request_mem_region(mem_res->start, mem_size, "isp1760")) {
+ pr_warning("isp1760: Cannot reserve the memory resource\n");
+ ret = -EBUSY;
+ goto out;
+ }
+
+ irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+ if (!irq_res) {
+ pr_warning("isp1760: IRQ resource not available\n");
+ return -ENODEV;
+ }
+ irqflags |= irq_res->flags & IRQF_TRIGGER_MASK;
+
+ if (priv) {
+ if (priv->is_isp1761)
+ devflags |= ISP1760_FLAG_ISP1761;
+ if (priv->bus_width_16)
+ devflags |= ISP1760_FLAG_BUS_WIDTH_16;
+ if (priv->port1_otg)
+ devflags |= ISP1760_FLAG_OTG_EN;
+ if (priv->analog_oc)
+ devflags |= ISP1760_FLAG_ANALOG_OC;
+ if (priv->dack_polarity_high)
+ devflags |= ISP1760_FLAG_DACK_POL_HIGH;
+ if (priv->dreq_polarity_high)
+ devflags |= ISP1760_FLAG_DREQ_POL_HIGH;
+ }
+
+ hcd = isp1760_register(mem_res->start, mem_size, irq_res->start,
+ irqflags, &pdev->dev, dev_name(&pdev->dev), devflags);
+ if (IS_ERR(hcd)) {
+ pr_warning("isp1760: Failed to register the HCD device\n");
+ ret = -ENODEV;
+ goto cleanup;
+ }
+
+ pr_info("ISP1760 USB device initialised\n");
+ return ret;
+
+cleanup:
+ release_mem_region(mem_res->start, mem_size);
+out:
+ return ret;
+}
+
+static int __devexit isp1760_plat_remove(struct platform_device *pdev)
+{
+ struct resource *mem_res;
+ resource_size_t mem_size;
+
+ mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ mem_size = resource_size(mem_res);
+ release_mem_region(mem_res->start, mem_size);
+
+ return 0;
+}
+
+static struct platform_driver isp1760_plat_driver = {
+ .probe = isp1760_plat_probe,
+ .remove = __devexit_p(isp1760_plat_remove),
+ .driver = {
+ .name = "isp1760",
+ },
+};
+
static int __init isp1760_init(void)
{
- int ret = -ENODEV;
+ int ret, any_ret = -ENODEV;
init_kmem_once();
-#ifdef CONFIG_USB_ISP1760_OF
+ ret = platform_driver_register(&isp1760_plat_driver);
+ if (!ret)
+ any_ret = 0;
+#ifdef CONFIG_PPC_OF
ret = of_register_platform_driver(&isp1760_of_driver);
- if (ret) {
- deinit_kmem_cache();
- return ret;
- }
+ if (!ret)
+ any_ret = 0;
#endif
-#ifdef CONFIG_USB_ISP1760_PCI
+#ifdef CONFIG_PCI
ret = pci_register_driver(&isp1761_pci_driver);
- if (ret)
- goto unreg_of;
+ if (!ret)
+ any_ret = 0;
#endif
- return ret;
-#ifdef CONFIG_USB_ISP1760_PCI
-unreg_of:
-#endif
-#ifdef CONFIG_USB_ISP1760_OF
- of_unregister_platform_driver(&isp1760_of_driver);
-#endif
- deinit_kmem_cache();
- return ret;
+ if (any_ret)
+ deinit_kmem_cache();
+ return any_ret;
}
module_init(isp1760_init);
static void __exit isp1760_exit(void)
{
-#ifdef CONFIG_USB_ISP1760_OF
+ platform_driver_unregister(&isp1760_plat_driver);
+#ifdef CONFIG_PPC_OF
of_unregister_platform_driver(&isp1760_of_driver);
#endif
-#ifdef CONFIG_USB_ISP1760_PCI
+#ifdef CONFIG_PCI
pci_unregister_driver(&isp1761_pci_driver);
#endif
deinit_kmem_cache();
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff