Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=828d55c58cba6b652fd30e00c3d940cb7c523e3c
Commit: 828d55c58cba6b652fd30e00c3d940cb7c523e3c
Parent: 504b55cc8bca420856159833629da8f9f92d5adc
Author: Yoshihiro Shimoda <[EMAIL PROTECTED]>
AuthorDate: Fri Jan 11 22:56:15 2008 +0900
Committer: Greg Kroah-Hartman <[EMAIL PROTECTED]>
CommitDate: Fri Feb 1 14:35:03 2008 -0800
USB: add support for SuperH OHCI
add support for SuperH OHCI.
supported CPU are:
- SH7720
- SH7721
- SH7763
Signed-off-by: Yoshihiro Shimoda <[EMAIL PROTECTED]>
Acked-by: David Brownell <[EMAIL PROTECTED]>
Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]>
---
drivers/usb/Kconfig | 4 +
drivers/usb/host/ohci-hcd.c | 7 ++
drivers/usb/host/ohci-sh.c | 143 +++++++++++++++++++++++++++++++++++++++++++
3 files changed, 154 insertions(+), 0 deletions(-)
diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig
index 8d48d97..755823c 100644
--- a/drivers/usb/Kconfig
+++ b/drivers/usb/Kconfig
@@ -42,6 +42,10 @@ config USB_ARCH_HAS_OHCI
default y if PPC_MPC52xx
# MIPS:
default y if SOC_AU1X00
+ # SH:
+ default y if CPU_SUBTYPE_SH7720
+ default y if CPU_SUBTYPE_SH7721
+ default y if CPU_SUBTYPE_SH7763
# more:
default PCI
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 8dd5d25..b8ed84d 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1029,6 +1029,13 @@ MODULE_LICENSE ("GPL");
#define PLATFORM_DRIVER usb_hcd_pnx4008_driver
#endif
+#if defined(CONFIG_CPU_SUBTYPE_SH7720) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7721) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7763)
+#include "ohci-sh.c"
+#define PLATFORM_DRIVER ohci_hcd_sh_driver
+#endif
+
#ifdef CONFIG_USB_OHCI_HCD_PPC_OF
#include "ohci-ppc-of.c"
diff --git a/drivers/usb/host/ohci-sh.c b/drivers/usb/host/ohci-sh.c
new file mode 100644
index 0000000..5309ac0
--- /dev/null
+++ b/drivers/usb/host/ohci-sh.c
@@ -0,0 +1,143 @@
+/*
+ * OHCI HCD (Host Controller Driver) for USB.
+ *
+ * Copyright (C) 2008 Renesas Solutions Corp.
+ *
+ * Author : Yoshihiro Shimoda <[EMAIL PROTECTED]>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#include <linux/platform_device.h>
+
+static int ohci_sh_start(struct usb_hcd *hcd)
+{
+ struct ohci_hcd *ohci = hcd_to_ohci(hcd);
+
+ ohci_hcd_init(ohci);
+ ohci_init(ohci);
+ ohci_run(ohci);
+ hcd->state = HC_STATE_RUNNING;
+ return 0;
+}
+
+static const struct hc_driver ohci_sh_hc_driver = {
+ .description = hcd_name,
+ .product_desc = "SuperH OHCI",
+ .hcd_priv_size = sizeof(struct ohci_hcd),
+
+ /*
+ * generic hardware linkage
+ */
+ .irq = ohci_irq,
+ .flags = HCD_USB11 | HCD_MEMORY,
+
+ /*
+ * basic lifecycle operations
+ */
+ .start = ohci_sh_start,
+ .stop = ohci_stop,
+ .shutdown = ohci_shutdown,
+
+ /*
+ * managing i/o requests and associated device resources
+ */
+ .urb_enqueue = ohci_urb_enqueue,
+ .urb_dequeue = ohci_urb_dequeue,
+ .endpoint_disable = ohci_endpoint_disable,
+
+ /*
+ * scheduling support
+ */
+ .get_frame_number = ohci_get_frame,
+
+ /*
+ * root hub support
+ */
+ .hub_status_data = ohci_hub_status_data,
+ .hub_control = ohci_hub_control,
+ .hub_irq_enable = ohci_rhsc_enable,
+#ifdef CONFIG_PM
+ .bus_suspend = ohci_bus_suspend,
+ .bus_resume = ohci_bus_resume,
+#endif
+ .start_port_reset = ohci_start_port_reset,
+};
+
+/*-------------------------------------------------------------------------*/
+
+#define resource_len(r) (((r)->end - (r)->start) + 1)
+static int ohci_hcd_sh_probe(struct platform_device *pdev)
+{
+ struct resource *res = NULL;
+ struct usb_hcd *hcd = NULL;
+ int irq = -1;
+ int ret;
+
+ if (usb_disabled())
+ return -ENODEV;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ err("platform_get_resource error.");
+ return -ENODEV;
+ }
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ err("platform_get_irq error.");
+ return -ENODEV;
+ }
+
+ /* initialize hcd */
+ hcd = usb_create_hcd(&ohci_sh_hc_driver, &pdev->dev, (char *)hcd_name);
+ if (!hcd) {
+ err("Failed to create hcd");
+ return -ENOMEM;
+ }
+
+ hcd->regs = (void __iomem *)res->start;
+ hcd->rsrc_start = res->start;
+ hcd->rsrc_len = resource_len(res);
+ ret = usb_add_hcd(hcd, irq, IRQF_DISABLED);
+ if (ret != 0) {
+ err("Failed to add hcd");
+ usb_put_hcd(hcd);
+ return ret;
+ }
+
+ return ret;
+}
+
+static int ohci_hcd_sh_remove(struct platform_device *pdev)
+{
+ struct usb_hcd *hcd = platform_get_drvdata(pdev);
+
+ usb_remove_hcd(hcd);
+ usb_put_hcd(hcd);
+
+ return 0;
+}
+
+static struct platform_driver ohci_hcd_sh_driver = {
+ .probe = ohci_hcd_sh_probe,
+ .remove = ohci_hcd_sh_remove,
+ .shutdown = usb_hcd_platform_shutdown,
+ .driver = {
+ .name = "sh_ohci",
+ .owner = THIS_MODULE,
+ },
+};
+
-
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