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authorjuhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73>2010-04-16 18:40:06 +0000
committerjuhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73>2010-04-16 18:40:06 +0000
commit0916d26393562a776aa8b1c99ddcc60e4ba12fea (patch)
treea502cb66c8637b9fb7671274338bbe3a2df54a2f /target/linux/ppc40x/patches/120-usb-isp116x-hcd-add-of-binding.patch
parent89d58c318982ccae1f5acef8af73eca3f65e84ab (diff)
ppc40x: make isp116x-hcd driver usable on the OpenRB board
Cc: backfire@openwrt.org git-svn-id: svn://svn.openwrt.org/openwrt/trunk@20931 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/ppc40x/patches/120-usb-isp116x-hcd-add-of-binding.patch')
-rw-r--r--target/linux/ppc40x/patches/120-usb-isp116x-hcd-add-of-binding.patch306
1 files changed, 306 insertions, 0 deletions
diff --git a/target/linux/ppc40x/patches/120-usb-isp116x-hcd-add-of-binding.patch b/target/linux/ppc40x/patches/120-usb-isp116x-hcd-add-of-binding.patch
new file mode 100644
index 0000000000..6de6e9b845
--- /dev/null
+++ b/target/linux/ppc40x/patches/120-usb-isp116x-hcd-add-of-binding.patch
@@ -0,0 +1,306 @@
+--- a/drivers/usb/host/isp116x-hcd.c
++++ b/drivers/usb/host/isp116x-hcd.c
+@@ -1531,8 +1531,11 @@ static struct hc_driver isp116x_hc_drive
+ .bus_resume = isp116x_bus_resume,
+ };
+
++#define resource_len(r) (((r)->end - (r)->start) + 1)
++
+ /*----------------------------------------------------------------*/
+
++#ifdef CONFIG_USB_ISP116X_HCD_PLATFORM
+ static int isp116x_remove(struct platform_device *pdev)
+ {
+ struct usb_hcd *hcd = platform_get_drvdata(pdev);
+@@ -1556,8 +1559,6 @@ static int isp116x_remove(struct platfor
+ return 0;
+ }
+
+-#define resource_len(r) (((r)->end - (r)->start) + 1)
+-
+ static int __devinit isp116x_probe(struct platform_device *pdev)
+ {
+ struct usb_hcd *hcd;
+@@ -1708,22 +1709,253 @@ static struct platform_driver isp116x_dr
+ },
+ };
+
++static inline int isp116x_platform_register(void)
++{
++ return platform_driver_register(&isp116x_driver);
++}
++
++static inline void isp116x_platform_unregister(void)
++{
++ platform_driver_unregister(&isp116x_driver);
++}
++#else
++static inline int isp116x_platform_register(void) { return 0; };
++static void isp116x_platform_unregister(void) {};
++#endif /* CONFIG_USB_ISP116X_PLATFORM */
++
++/*-----------------------------------------------------------------*/
++
++#ifdef CONFIG_USB_ISP116X_HCD_OF
++
++#include <linux/of.h>
++#include <linux/of_device.h>
++#include <linux/of_platform.h>
++
++#ifdef USE_PLATFORM_DELAY
++static void isp116x_of_delay(struct device *ddev, int delay)
++{
++ ndelay(delay);
++}
++#else
++#define isp116x_of_delay NULL
++#endif
++
++static int __devinit isp116x_of_probe(struct of_device *op,
++ const struct of_device_id *match)
++{
++ struct device_node *dn = op->node;
++ struct usb_hcd *hcd;
++ struct isp116x *isp116x;
++ struct resource addr, data, ires;
++ struct isp116x_platform_data *board;
++ void __iomem *addr_reg;
++ void __iomem *data_reg;
++ int irq;
++ int ret = 0;
++ unsigned long irqflags;
++
++ ret = of_address_to_resource(dn, 0, &data);
++ if (ret)
++ return ret;
++
++ ret = of_address_to_resource(dn, 1, &addr);
++ if (ret)
++ return ret;
++
++ ret = of_irq_to_resource(dn, 1, &ires);
++ if (ret)
++ return ret;
++
++ irqflags = ires.flags & IRQF_TRIGGER_MASK;
++
++ board = kzalloc(sizeof(struct isp116x_platform_data), GFP_KERNEL);
++ if (board == NULL)
++ return -ENOMEM;
++
++ if (!request_mem_region(addr.start, resource_len(&addr), hcd_name)) {
++ ret = -EBUSY;
++ goto err_free_board;
++ }
++
++ addr_reg = ioremap_nocache(addr.start, resource_len(&addr));
++ if (addr_reg == NULL) {
++ ret = -ENOMEM;
++ goto err_release_addr;
++ }
++
++ if (!request_mem_region(data.start, resource_len(&data), hcd_name)) {
++ ret = -EBUSY;
++ goto err_unmap_addr;
++ }
++
++ data_reg = ioremap_nocache(data.start, resource_len(&data));
++ if (data_reg == NULL) {
++ ret = -ENOMEM;
++ goto err_release_data;
++ }
++
++ irq = irq_of_parse_and_map(op->node, 0);
++ if (irq == NO_IRQ) {
++ ret = -EINVAL;
++ goto err_unmap_data;
++ }
++
++ /* allocate and initialize hcd */
++ hcd = usb_create_hcd(&isp116x_hc_driver, &op->dev, dev_name(&op->dev));
++ if (!hcd) {
++ ret = -ENOMEM;
++ goto err_irq_dispose;
++ }
++
++ /* this rsrc_start is bogus */
++ hcd->rsrc_start = addr.start;
++ isp116x = hcd_to_isp116x(hcd);
++ isp116x->data_reg = data_reg;
++ isp116x->addr_reg = addr_reg;
++ isp116x->board = board;
++ spin_lock_init(&isp116x->lock);
++ INIT_LIST_HEAD(&isp116x->async);
++
++ board->delay = isp116x_of_delay;
++ if (of_get_property(dn, "sel15Kres", NULL))
++ board->sel15Kres = 1;
++ if (of_get_property(dn, "oc_enable", NULL))
++ board->oc_enable = 1;
++ if (of_get_property(dn, "remote_wakeup_enable", NULL))
++ board->remote_wakeup_enable = 1;
++
++ if (of_get_property(dn, "int_act_high", NULL))
++ board->int_act_high = 1;
++ if (of_get_property(dn, "int_edge_triggered", NULL))
++ board->int_edge_triggered = 1;
++
++ ret = usb_add_hcd(hcd, irq, irqflags | IRQF_DISABLED);
++ if (ret)
++ goto err_put_hcd;
++
++ ret = create_debug_file(isp116x);
++ if (ret) {
++ ERR("Couldn't create debugfs entry\n");
++ goto err_remove_hcd;
++ }
++
++ return 0;
++
++ err_remove_hcd:
++ usb_remove_hcd(hcd);
++ err_put_hcd:
++ usb_put_hcd(hcd);
++ err_irq_dispose:
++ irq_dispose_mapping(irq);
++ err_unmap_data:
++ iounmap(data_reg);
++ err_release_data:
++ release_mem_region(data.start, resource_len(&data));
++ err_unmap_addr:
++ iounmap(addr_reg);
++ err_release_addr:
++ release_mem_region(addr.start, resource_len(&addr));
++ err_free_board:
++ kfree(board);
++ return ret;
++}
++
++static __devexit int isp116x_of_remove(struct of_device *op)
++{
++ struct usb_hcd *hcd = dev_get_drvdata(&op->dev);
++ struct isp116x *isp116x;
++ struct resource res;
++
++ if (!hcd)
++ return 0;
++
++ dev_set_drvdata(&op->dev, NULL);
++
++ isp116x = hcd_to_isp116x(hcd);
++ remove_debug_file(isp116x);
++ usb_remove_hcd(hcd);
++
++ irq_dispose_mapping(hcd->irq);
++
++ iounmap(isp116x->data_reg);
++ (void) of_address_to_resource(op->node, 0, &res);
++ release_mem_region(res.start, resource_len(&res));
++
++ iounmap(isp116x->addr_reg);
++ (void) of_address_to_resource(op->node, 1, &res);
++ release_mem_region(res.start, resource_len(&res));
++
++ kfree(isp116x->board);
++ usb_put_hcd(hcd);
++
++ return 0;
++}
++
++static struct of_device_id isp116x_of_match[] = {
++ { .compatible = "isp116x-hcd", },
++ {},
++};
++
++static struct of_platform_driver isp116x_of_platform_driver = {
++ .owner = THIS_MODULE,
++ .name = "isp116x-hcd-of",
++ .match_table = isp116x_of_match,
++ .probe = isp116x_of_probe,
++ .remove = __devexit_p(isp116x_of_remove),
++ .driver = {
++ .name = "isp116x-hcd-of",
++ .owner = THIS_MODULE,
++ },
++};
++
++static int __init isp116x_of_register(void)
++{
++ return of_register_platform_driver(&isp116x_of_platform_driver);
++}
++
++static void __exit isp116x_of_unregister(void)
++{
++ of_unregister_platform_driver(&isp116x_of_platform_driver);
++}
++
++MODULE_DEVICE_TABLE(of, isp116x_of_match);
++
++#else
++static inline int isp116x_of_register(void) { return 0; };
++static void isp116x_of_unregister(void) {};
++#endif /* CONFIG_USB_ISP116X_HCD_OF */
++
+ /*-----------------------------------------------------------------*/
+
+ static int __init isp116x_init(void)
+ {
++ int ret;
++
+ if (usb_disabled())
+ return -ENODEV;
+
+ INFO("driver %s, %s\n", hcd_name, DRIVER_VERSION);
+- return platform_driver_register(&isp116x_driver);
++ ret = isp116x_platform_register();
++ if (ret)
++ return ret;
++
++ ret = isp116x_of_register();
++ if (ret)
++ goto err_platform_unregister;
++
++ return 0;
++
++ err_platform_unregister:
++ isp116x_platform_unregister();
++ return ret;
+ }
+
+ module_init(isp116x_init);
+
+ static void __exit isp116x_cleanup(void)
+ {
+- platform_driver_unregister(&isp116x_driver);
++ isp116x_of_unregister();
++ isp116x_platform_unregister();
+ }
+
+ module_exit(isp116x_cleanup);
+--- a/drivers/usb/host/Kconfig
++++ b/drivers/usb/host/Kconfig
+@@ -144,6 +144,24 @@ config USB_ISP116X_HCD
+ To compile this driver as a module, choose M here: the
+ module will be called isp116x-hcd.
+
++config USB_ISP116X_HCD_PLATFORM
++ bool "ISP116X support for controllers on platform bus"
++ depends on USB_ISP116X_HCD
++ default n if PPC_OF
++ default y
++ ---help---
++ Enables support for the ISP116x USB controller present on the
++ platform bus.
++
++config USB_ISP116X_HCD_OF
++ bool "ISP116X support for controllers on OF platform bus"
++ depends on USB_ISP116X_HCD && PPC_OF
++ default y if PPC_OF
++ default n
++ ---help---
++ Enables support for the ISP116x USB controller present on the
++ OpenFirmware platform bus.
++
+ config USB_ISP1760_HCD
+ tristate "ISP 1760 HCD support"
+ depends on USB && EXPERIMENTAL