bcm63xx: Add support for 2.6.39

Add support for Kernel 2.6.39. Boots fine on a BCM6358.

Signed-off-by: Jonas Gorski <jonas.gorski+openwrt@gmail.com>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27019 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 202 insertions, 0 deletions

diff --git a/target/linux/brcm63xx/patches-2.6.39/010-add_bcm63xx_ohci_controller.patch b/target/linux/brcm63xx/patches-2.6.39/010-add_bcm63xx_ohci_controller.patch
new file mode 100644
index 0000000000..39c732f735
--- /dev/null
+++ b/target/linux/brcm63xx/patches-2.6.39/010-add_bcm63xx_ohci_controller.patch
@@ -0,0 +1,202 @@
+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
+@@ -1054,6 +1054,11 @@ 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
++
+ #ifdef CONFIG_USB_OHCI_SH
+ #include "ohci-sh.c"
+ #define PLATFORM_DRIVER		ohci_hcd_sh_driver
+--- a/drivers/usb/host/ohci.h
++++ b/drivers/usb/host/ohci.h
+@@ -646,7 +646,7 @@ 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