mirror of
git://git.openwrt.org/openwrt/openwrt.git
synced 2025-10-28 20:44:27 -04:00
203 lines
5.4 KiB
Diff
203 lines
5.4 KiB
Diff
Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
|
|
---
|
|
drivers/usb/host/ohci-bcm63xx.c | 166 +++++++++++++++++++++++++++++++++++++++
|
|
drivers/usb/host/ohci-hcd.c | 5 +
|
|
drivers/usb/host/ohci.h | 2 +-
|
|
3 files changed, 172 insertions(+), 1 deletions(-)
|
|
create mode 100644 drivers/usb/host/ohci-bcm63xx.c
|
|
|
|
--- /dev/null
|
|
+++ b/drivers/usb/host/ohci-bcm63xx.c
|
|
@@ -0,0 +1,166 @@
|
|
+/*
|
|
+ * This file is subject to the terms and conditions of the GNU General Public
|
|
+ * License. See the file "COPYING" in the main directory of this archive
|
|
+ * for more details.
|
|
+ *
|
|
+ * Copyright (C) 2010 Maxime Bizon <mbizon@freebox.fr>
|
|
+ */
|
|
+
|
|
+#include <linux/init.h>
|
|
+#include <linux/clk.h>
|
|
+#include <linux/platform_device.h>
|
|
+#include <bcm63xx_cpu.h>
|
|
+#include <bcm63xx_regs.h>
|
|
+#include <bcm63xx_io.h>
|
|
+
|
|
+static struct clk *usb_host_clock;
|
|
+
|
|
+static int __devinit ohci_bcm63xx_start(struct usb_hcd *hcd)
|
|
+{
|
|
+ struct ohci_hcd *ohci = hcd_to_ohci(hcd);
|
|
+ int ret;
|
|
+
|
|
+ /*
|
|
+ * port 2 can be shared with USB slave, but all boards seem to
|
|
+ * have only one host port populated, so we can hardcode it
|
|
+ */
|
|
+ ohci->num_ports = 1;
|
|
+
|
|
+ ret = ohci_init(ohci);
|
|
+ if (ret < 0)
|
|
+ return ret;
|
|
+
|
|
+ ret = ohci_run(ohci);
|
|
+ if (ret < 0) {
|
|
+ err("can't start %s", hcd->self.bus_name);
|
|
+ ohci_stop(hcd);
|
|
+ return ret;
|
|
+ }
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static const struct hc_driver ohci_bcm63xx_hc_driver = {
|
|
+ .description = hcd_name,
|
|
+ .product_desc = "BCM63XX integrated OHCI controller",
|
|
+ .hcd_priv_size = sizeof(struct ohci_hcd),
|
|
+
|
|
+ .irq = ohci_irq,
|
|
+ .flags = HCD_USB11 | HCD_MEMORY,
|
|
+ .start = ohci_bcm63xx_start,
|
|
+ .stop = ohci_stop,
|
|
+ .shutdown = ohci_shutdown,
|
|
+ .urb_enqueue = ohci_urb_enqueue,
|
|
+ .urb_dequeue = ohci_urb_dequeue,
|
|
+ .endpoint_disable = ohci_endpoint_disable,
|
|
+ .get_frame_number = ohci_get_frame,
|
|
+ .hub_status_data = ohci_hub_status_data,
|
|
+ .hub_control = ohci_hub_control,
|
|
+ .start_port_reset = ohci_start_port_reset,
|
|
+};
|
|
+
|
|
+static int __devinit ohci_hcd_bcm63xx_drv_probe(struct platform_device *pdev)
|
|
+{
|
|
+ struct resource *res_mem;
|
|
+ struct usb_hcd *hcd;
|
|
+ struct ohci_hcd *ohci;
|
|
+ u32 reg;
|
|
+ int ret, irq;
|
|
+
|
|
+ res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
|
+ irq = platform_get_irq(pdev, 0);
|
|
+ if (!res_mem || irq < 0)
|
|
+ return -ENODEV;
|
|
+
|
|
+ if (BCMCPU_IS_6348()) {
|
|
+ struct clk *clk;
|
|
+ /* enable USB host clock */
|
|
+ clk = clk_get(&pdev->dev, "usbh");
|
|
+ if (IS_ERR(clk))
|
|
+ return -ENODEV;
|
|
+
|
|
+ clk_enable(clk);
|
|
+ usb_host_clock = clk;
|
|
+ bcm_rset_writel(RSET_OHCI_PRIV, 0, OHCI_PRIV_REG);
|
|
+
|
|
+ } else if (BCMCPU_IS_6358()) {
|
|
+ reg = bcm_rset_readl(RSET_USBH_PRIV, USBH_PRIV_SWAP_REG);
|
|
+ reg &= ~USBH_PRIV_SWAP_OHCI_ENDN_MASK;
|
|
+ reg |= USBH_PRIV_SWAP_OHCI_DATA_MASK;
|
|
+ bcm_rset_writel(RSET_USBH_PRIV, reg, USBH_PRIV_SWAP_REG);
|
|
+ /*
|
|
+ * The magic value comes for the original vendor BSP
|
|
+ * and is needed for USB to work. Datasheet does not
|
|
+ * help, so the magic value is used as-is.
|
|
+ */
|
|
+ bcm_rset_writel(RSET_USBH_PRIV, 0x1c0020, USBH_PRIV_TEST_REG);
|
|
+ } else
|
|
+ return 0;
|
|
+
|
|
+ hcd = usb_create_hcd(&ohci_bcm63xx_hc_driver, &pdev->dev, "bcm63xx");
|
|
+ if (!hcd)
|
|
+ return -ENOMEM;
|
|
+ hcd->rsrc_start = res_mem->start;
|
|
+ hcd->rsrc_len = res_mem->end - res_mem->start + 1;
|
|
+
|
|
+ if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
|
|
+ pr_debug("request_mem_region failed\n");
|
|
+ ret = -EBUSY;
|
|
+ goto out;
|
|
+ }
|
|
+
|
|
+ hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
|
|
+ if (!hcd->regs) {
|
|
+ pr_debug("ioremap failed\n");
|
|
+ ret = -EIO;
|
|
+ goto out1;
|
|
+ }
|
|
+
|
|
+ ohci = hcd_to_ohci(hcd);
|
|
+ ohci->flags |= OHCI_QUIRK_BE_MMIO | OHCI_QUIRK_BE_DESC |
|
|
+ OHCI_QUIRK_FRAME_NO;
|
|
+ ohci_hcd_init(ohci);
|
|
+
|
|
+ ret = usb_add_hcd(hcd, irq, IRQF_DISABLED);
|
|
+ if (ret)
|
|
+ goto out2;
|
|
+
|
|
+ platform_set_drvdata(pdev, hcd);
|
|
+ return 0;
|
|
+
|
|
+out2:
|
|
+ iounmap(hcd->regs);
|
|
+out1:
|
|
+ release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
|
|
+out:
|
|
+ usb_put_hcd(hcd);
|
|
+ return ret;
|
|
+}
|
|
+
|
|
+static int __devexit ohci_hcd_bcm63xx_drv_remove(struct platform_device *pdev)
|
|
+{
|
|
+ struct usb_hcd *hcd;
|
|
+
|
|
+ hcd = platform_get_drvdata(pdev);
|
|
+ usb_remove_hcd(hcd);
|
|
+ iounmap(hcd->regs);
|
|
+ usb_put_hcd(hcd);
|
|
+ release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
|
|
+ if (usb_host_clock) {
|
|
+ clk_disable(usb_host_clock);
|
|
+ clk_put(usb_host_clock);
|
|
+ }
|
|
+ platform_set_drvdata(pdev, NULL);
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static struct platform_driver ohci_hcd_bcm63xx_driver = {
|
|
+ .probe = ohci_hcd_bcm63xx_drv_probe,
|
|
+ .remove = __devexit_p(ohci_hcd_bcm63xx_drv_remove),
|
|
+ .shutdown = usb_hcd_platform_shutdown,
|
|
+ .driver = {
|
|
+ .name = "bcm63xx_ohci",
|
|
+ .owner = THIS_MODULE,
|
|
+ },
|
|
+};
|
|
+
|
|
+MODULE_ALIAS("platform:bcm63xx_ohci");
|
|
--- a/drivers/usb/host/ohci-hcd.c
|
|
+++ b/drivers/usb/host/ohci-hcd.c
|
|
@@ -1067,6 +1067,11 @@ MODULE_LICENSE ("GPL");
|
|
#define PLATFORM_DRIVER ohci_hcd_da8xx_driver
|
|
#endif
|
|
|
|
+#ifdef CONFIG_BCM63XX
|
|
+#include "ohci-bcm63xx.c"
|
|
+#define PLATFORM_DRIVER ohci_hcd_bcm63xx_driver
|
|
+#endif
|
|
+
|
|
#if defined(CONFIG_CPU_SUBTYPE_SH7720) || \
|
|
defined(CONFIG_CPU_SUBTYPE_SH7721) || \
|
|
defined(CONFIG_CPU_SUBTYPE_SH7763) || \
|
|
--- a/drivers/usb/host/ohci.h
|
|
+++ b/drivers/usb/host/ohci.h
|
|
@@ -656,7 +656,7 @@ static inline u32 hc32_to_cpup (const st
|
|
* some big-endian SOC implementations. Same thing happens with PSW access.
|
|
*/
|
|
|
|
-#ifdef CONFIG_PPC_MPC52xx
|
|
+#if defined(CONFIG_PPC_MPC52xx) || defined(CONFIG_BCM63XX)
|
|
#define big_endian_frame_no_quirk(ohci) (ohci->flags & OHCI_QUIRK_FRAME_NO)
|
|
#else
|
|
#define big_endian_frame_no_quirk(ohci) 0
|