Commit fe4bfb30 authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman

Merge branch 'sh/ehci' of master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6 into work

* 'sh/ehci' of master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6:
  sh: Convert to USB_ARCH_HAS_OHCI/EHCI selects.
  usb: ehci-sh: Add missing ehci helpers.
  usb: ehci-sh: Fix up fault in shutdown path.
  sh: Add EHCI support for SH7786.
  usb: ehci-hcd: Add support for SuperH EHCI.
  usb: ohci-sh: Set IRQ as shared.
parents 367576b8 e3e9887e
......@@ -344,6 +344,7 @@ config CPU_SUBTYPE_SH7720
select CPU_SH3
select CPU_HAS_DSP
select SYS_SUPPORTS_CMT
select USB_ARCH_HAS_OHCI
help
Select SH7720 if you have a SH3-DSP SH7720 CPU.
......@@ -352,6 +353,7 @@ config CPU_SUBTYPE_SH7721
select CPU_SH3
select CPU_HAS_DSP
select SYS_SUPPORTS_CMT
select USB_ARCH_HAS_OHCI
help
Select SH7721 if you have a SH3-DSP SH7721 CPU.
......@@ -429,6 +431,7 @@ config CPU_SUBTYPE_SH7757
config CPU_SUBTYPE_SH7763
bool "Support SH7763 processor"
select CPU_SH4A
select USB_ARCH_HAS_OHCI
help
Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
......@@ -453,6 +456,8 @@ config CPU_SUBTYPE_SH7786
select CPU_SHX3
select CPU_HAS_PTEAEX
select GENERIC_CLOCKEVENTS_BROADCAST if SMP
select USB_ARCH_HAS_OHCI
select USB_ARCH_HAS_EHCI
config CPU_SUBTYPE_SHX3
bool "Support SH-X3 processor"
......
......@@ -522,10 +522,37 @@ static struct platform_device dma0_device = {
},
};
#define USB_EHCI_START 0xffe70000
#define USB_OHCI_START 0xffe70400
static struct resource usb_ehci_resources[] = {
[0] = {
.start = USB_EHCI_START,
.end = USB_EHCI_START + 0x3ff,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = 77,
.end = 77,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device usb_ehci_device = {
.name = "sh_ehci",
.id = -1,
.dev = {
.dma_mask = &usb_ehci_device.dev.coherent_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
.num_resources = ARRAY_SIZE(usb_ehci_resources),
.resource = usb_ehci_resources,
};
static struct resource usb_ohci_resources[] = {
[0] = {
.start = 0xffe70400,
.end = 0xffe704ff,
.start = USB_OHCI_START,
.end = USB_OHCI_START + 0x3ff,
.flags = IORESOURCE_MEM,
},
[1] = {
......@@ -535,12 +562,11 @@ static struct resource usb_ohci_resources[] = {
},
};
static u64 usb_ohci_dma_mask = DMA_BIT_MASK(32);
static struct platform_device usb_ohci_device = {
.name = "sh_ohci",
.id = -1,
.dev = {
.dma_mask = &usb_ohci_dma_mask,
.dma_mask = &usb_ohci_device.dev.coherent_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
.num_resources = ARRAY_SIZE(usb_ohci_resources),
......@@ -570,6 +596,7 @@ static struct platform_device *sh7786_early_devices[] __initdata = {
static struct platform_device *sh7786_devices[] __initdata = {
&dma0_device,
&usb_ehci_device,
&usb_ohci_device,
};
......
......@@ -48,11 +48,6 @@ config USB_ARCH_HAS_OHCI
# MIPS:
default y if MIPS_ALCHEMY
default y if MACH_JZ4740
# SH:
default y if CPU_SUBTYPE_SH7720
default y if CPU_SUBTYPE_SH7721
default y if CPU_SUBTYPE_SH7763
default y if CPU_SUBTYPE_SH7786
# more:
default PCI
......
......@@ -1166,6 +1166,11 @@ MODULE_LICENSE ("GPL");
#define PLATFORM_DRIVER ehci_mxc_driver
#endif
#ifdef CONFIG_CPU_SUBTYPE_SH7786
#include "ehci-sh.c"
#define PLATFORM_DRIVER ehci_hcd_sh_driver
#endif
#ifdef CONFIG_SOC_AU1200
#include "ehci-au1xxx.c"
#define PLATFORM_DRIVER ehci_hcd_au1xxx_driver
......
/*
* SuperH EHCI host controller driver
*
* Copyright (C) 2010 Paul Mundt
*
* Based on ohci-sh.c and ehci-atmel.c.
*
* 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.
*/
#include <linux/platform_device.h>
#include <linux/clk.h>
struct ehci_sh_priv {
struct clk *iclk, *fclk;
struct usb_hcd *hcd;
};
static int ehci_sh_reset(struct usb_hcd *hcd)
{
struct ehci_hcd *ehci = hcd_to_ehci(hcd);
int ret;
ehci->caps = hcd->regs;
ehci->regs = hcd->regs + HC_LENGTH(ehci_readl(ehci,
&ehci->caps->hc_capbase));
dbg_hcs_params(ehci, "reset");
dbg_hcc_params(ehci, "reset");
ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
ret = ehci_halt(ehci);
if (unlikely(ret))
return ret;
ret = ehci_init(hcd);
if (unlikely(ret))
return ret;
ehci->sbrn = 0x20;
ehci_reset(ehci);
ehci_port_power(ehci, 0);
return ret;
}
static const struct hc_driver ehci_sh_hc_driver = {
.description = hcd_name,
.product_desc = "SuperH EHCI",
.hcd_priv_size = sizeof(struct ehci_hcd),
/*
* generic hardware linkage
*/
.irq = ehci_irq,
.flags = HCD_USB2 | HCD_MEMORY,
/*
* basic lifecycle operations
*/
.reset = ehci_sh_reset,
.start = ehci_run,
.stop = ehci_stop,
.shutdown = ehci_shutdown,
/*
* managing i/o requests and associated device resources
*/
.urb_enqueue = ehci_urb_enqueue,
.urb_dequeue = ehci_urb_dequeue,
.endpoint_disable = ehci_endpoint_disable,
.endpoint_reset = ehci_endpoint_reset,
/*
* scheduling support
*/
.get_frame_number = ehci_get_frame,
/*
* root hub support
*/
.hub_status_data = ehci_hub_status_data,
.hub_control = ehci_hub_control,
#ifdef CONFIG_PM
.bus_suspend = ehci_bus_suspend,
.bus_resume = ehci_bus_resume,
#endif
.relinquish_port = ehci_relinquish_port,
.port_handed_over = ehci_port_handed_over,
.clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
};
static int ehci_hcd_sh_probe(struct platform_device *pdev)
{
const struct hc_driver *driver = &ehci_sh_hc_driver;
struct resource *res;
struct ehci_sh_priv *priv;
struct usb_hcd *hcd;
int irq, ret;
if (usb_disabled())
return -ENODEV;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(&pdev->dev,
"Found HC with no register addr. Check %s setup!\n",
dev_name(&pdev->dev));
ret = -ENODEV;
goto fail_create_hcd;
}
irq = platform_get_irq(pdev, 0);
if (irq <= 0) {
dev_err(&pdev->dev,
"Found HC with no IRQ. Check %s setup!\n",
dev_name(&pdev->dev));
ret = -ENODEV;
goto fail_create_hcd;
}
/* initialize hcd */
hcd = usb_create_hcd(&ehci_sh_hc_driver, &pdev->dev,
dev_name(&pdev->dev));
if (!hcd) {
ret = -ENOMEM;
goto fail_create_hcd;
}
hcd->rsrc_start = res->start;
hcd->rsrc_len = resource_size(res);
if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len,
driver->description)) {
dev_dbg(&pdev->dev, "controller already in use\n");
ret = -EBUSY;
goto fail_request_resource;
}
hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len);
if (hcd->regs == NULL) {
dev_dbg(&pdev->dev, "error mapping memory\n");
ret = -ENXIO;
goto fail_ioremap;
}
priv = kmalloc(sizeof(struct ehci_sh_priv), GFP_KERNEL);
if (!priv) {
dev_dbg(&pdev->dev, "error allocating priv data\n");
ret = -ENOMEM;
goto fail_alloc;
}
/* These are optional, we don't care if they fail */
priv->fclk = clk_get(&pdev->dev, "usb_fck");
if (IS_ERR(priv->fclk))
priv->fclk = NULL;
priv->iclk = clk_get(&pdev->dev, "usb_ick");
if (IS_ERR(priv->iclk))
priv->iclk = NULL;
clk_enable(priv->fclk);
clk_enable(priv->iclk);
ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED);
if (ret != 0) {
dev_err(&pdev->dev, "Failed to add hcd");
goto fail_add_hcd;
}
priv->hcd = hcd;
platform_set_drvdata(pdev, priv);
return ret;
fail_add_hcd:
clk_disable(priv->iclk);
clk_disable(priv->fclk);
clk_put(priv->iclk);
clk_put(priv->fclk);
kfree(priv);
fail_alloc:
iounmap(hcd->regs);
fail_ioremap:
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
fail_request_resource:
usb_put_hcd(hcd);
fail_create_hcd:
dev_err(&pdev->dev, "init %s fail, %d\n", dev_name(&pdev->dev), ret);
return ret;
}
static int __exit ehci_hcd_sh_remove(struct platform_device *pdev)
{
struct ehci_sh_priv *priv = platform_get_drvdata(pdev);
struct usb_hcd *hcd = priv->hcd;
usb_remove_hcd(hcd);
iounmap(hcd->regs);
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
usb_put_hcd(hcd);
platform_set_drvdata(pdev, NULL);
clk_disable(priv->fclk);
clk_disable(priv->iclk);
clk_put(priv->fclk);
clk_put(priv->iclk);
kfree(priv);
return 0;
}
static void ehci_hcd_sh_shutdown(struct platform_device *pdev)
{
struct ehci_sh_priv *priv = platform_get_drvdata(pdev);
struct usb_hcd *hcd = priv->hcd;
if (hcd->driver->shutdown)
hcd->driver->shutdown(hcd);
}
static struct platform_driver ehci_hcd_sh_driver = {
.probe = ehci_hcd_sh_probe,
.remove = __exit_p(ehci_hcd_sh_remove),
.shutdown = ehci_hcd_sh_shutdown,
.driver = {
.name = "sh_ehci",
.owner = THIS_MODULE,
},
};
MODULE_ALIAS("platform:sh_ehci");
......@@ -109,7 +109,7 @@ static int ohci_hcd_sh_probe(struct platform_device *pdev)
hcd->regs = (void __iomem *)res->start;
hcd->rsrc_start = res->start;
hcd->rsrc_len = resource_size(res);
ret = usb_add_hcd(hcd, irq, IRQF_DISABLED);
ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED);
if (ret != 0) {
err("Failed to add hcd");
usb_put_hcd(hcd);
......
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