192 lines
5.5 KiB
Diff
192 lines
5.5 KiB
Diff
From ffb27de4760595c356ef619c97f25722c8db28e7 Mon Sep 17 00:00:00 2001
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From: John Crispin <blogic@openwrt.org>
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Date: Sun, 27 Jul 2014 09:49:07 +0100
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Subject: [PATCH 38/57] USB: add OHCI/EHCI OF binding
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based on f3bc64d6d1f21c1b92d75f233a37b75d77af6963
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Signed-off-by: John Crispin <blogic@openwrt.org>
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---
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drivers/usb/Makefile | 3 ++-
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drivers/usb/host/ehci-platform.c | 21 +++++++++++++++++----
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drivers/usb/host/ohci-platform.c | 37 +++++++++++++++++++++++++++++++------
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3 files changed, 50 insertions(+), 11 deletions(-)
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diff --git a/drivers/usb/Makefile b/drivers/usb/Makefile
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index 1ae2bf3..aaa15d9 100644
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--- a/drivers/usb/Makefile
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+++ b/drivers/usb/Makefile
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@@ -11,6 +11,8 @@ obj-$(CONFIG_USB_DWC2) += dwc2/
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obj-$(CONFIG_USB_MON) += mon/
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+obj-$(CONFIG_USB_PHY) += phy/
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+
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obj-$(CONFIG_PCI) += host/
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obj-$(CONFIG_USB_EHCI_HCD) += host/
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obj-$(CONFIG_USB_ISP116X_HCD) += host/
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@@ -41,7 +43,6 @@ obj-$(CONFIG_USB_TMC) += class/
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obj-$(CONFIG_USB_STORAGE) += storage/
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obj-$(CONFIG_USB) += storage/
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-obj-$(CONFIG_USB_MDC800) += image/
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obj-$(CONFIG_USB_MICROTEK) += image/
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obj-$(CONFIG_USB_SERIAL) += serial/
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diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c
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index 01536cf..1b9a8f4 100644
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--- a/drivers/usb/host/ehci-platform.c
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+++ b/drivers/usb/host/ehci-platform.c
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@@ -29,6 +29,8 @@
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#include <linux/usb.h>
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#include <linux/usb/hcd.h>
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#include <linux/usb/ehci_pdriver.h>
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+#include <linux/usb/phy.h>
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+#include <linux/usb/otg.h>
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#include "ehci.h"
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@@ -123,6 +125,15 @@ static int ehci_platform_probe(struct platform_device *dev)
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hcd->rsrc_start = res_mem->start;
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hcd->rsrc_len = resource_size(res_mem);
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+#ifdef CONFIG_USB_PHY
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+ hcd->phy = devm_usb_get_phy(&dev->dev, USB_PHY_TYPE_USB2);
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+ if (!IS_ERR_OR_NULL(hcd->phy)) {
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+ otg_set_host(hcd->phy->otg,
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+ &hcd->self);
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+ usb_phy_init(hcd->phy);
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+ }
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+#endif
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+
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hcd->regs = devm_ioremap_resource(&dev->dev, res_mem);
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if (IS_ERR(hcd->regs)) {
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err = PTR_ERR(hcd->regs);
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@@ -160,6 +171,9 @@ static int ehci_platform_remove(struct platform_device *dev)
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if (pdata == &ehci_platform_defaults)
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dev->dev.platform_data = NULL;
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+ if (pdata == &ehci_platform_defaults)
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+ dev->dev.platform_data = NULL;
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+
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return 0;
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}
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@@ -204,9 +218,8 @@ static int ehci_platform_resume(struct device *dev)
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#define ehci_platform_resume NULL
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#endif /* CONFIG_PM */
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-static const struct of_device_id vt8500_ehci_ids[] = {
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- { .compatible = "via,vt8500-ehci", },
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- { .compatible = "wm,prizm-ehci", },
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+static const struct of_device_id ralink_ehci_ids[] = {
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+ { .compatible = "ralink,rt3xxx-ehci", },
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{}
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};
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@@ -230,7 +243,7 @@ static struct platform_driver ehci_platform_driver = {
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.owner = THIS_MODULE,
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.name = "ehci-platform",
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.pm = &ehci_platform_pm_ops,
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- .of_match_table = vt8500_ehci_ids,
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+ .of_match_table = ralink_ehci_ids,
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}
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};
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diff --git a/drivers/usb/host/ohci-platform.c b/drivers/usb/host/ohci-platform.c
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index 68f674c..2a73fed 100644
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--- a/drivers/usb/host/ohci-platform.c
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+++ b/drivers/usb/host/ohci-platform.c
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@@ -23,17 +23,20 @@
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#include <linux/usb/ohci_pdriver.h>
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#include <linux/usb.h>
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#include <linux/usb/hcd.h>
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+#include <linux/dma-mapping.h>
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+#include <linux/of.h>
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#include "ohci.h"
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#define DRIVER_DESC "OHCI generic platform driver"
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+static struct usb_ohci_pdata ohci_platform_defaults;
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static const char hcd_name[] = "ohci-platform";
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static int ohci_platform_reset(struct usb_hcd *hcd)
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{
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struct platform_device *pdev = to_platform_device(hcd->self.controller);
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- struct usb_ohci_pdata *pdata = dev_get_platdata(&pdev->dev);
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+ struct usb_ohci_pdata *pdata;
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struct ohci_hcd *ohci = hcd_to_ohci(hcd);
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if (pdata->big_endian_desc)
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@@ -63,11 +66,18 @@ static int ohci_platform_probe(struct platform_device *dev)
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int irq;
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int err = -ENOMEM;
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- if (!pdata) {
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- WARN_ON(1);
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- return -ENODEV;
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- }
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-
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+ /*
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+ * use reasonable defaults so platforms don't have to provide these.
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+ * with DT probing on ARM, none of these are set.
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+ */
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+ if (!dev->dev.platform_data)
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+ dev->dev.platform_data = &ohci_platform_defaults;
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+ if (!dev->dev.dma_mask)
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+ dev->dev.dma_mask = &dev->dev.coherent_dma_mask;
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+ if (!dev->dev.coherent_dma_mask)
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+ dev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
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+
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+ pdata = dev->dev.platform_data;
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if (usb_disabled())
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return -ENODEV;
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@@ -99,6 +109,12 @@ static int ohci_platform_probe(struct platform_device *dev)
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hcd->rsrc_start = res_mem->start;
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hcd->rsrc_len = resource_size(res_mem);
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+#ifdef CONFIG_USB_PHY
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+ hcd->phy = devm_usb_get_phy(&dev->dev, USB_PHY_TYPE_USB2);
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+ if (!IS_ERR_OR_NULL(hcd->phy))
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+ usb_phy_init(hcd->phy);
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+#endif
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+
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hcd->regs = devm_ioremap_resource(&dev->dev, res_mem);
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if (IS_ERR(hcd->regs)) {
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err = PTR_ERR(hcd->regs);
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@@ -134,6 +150,9 @@ static int ohci_platform_remove(struct platform_device *dev)
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if (pdata->power_off)
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pdata->power_off(dev);
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+ if (pdata == &ohci_platform_defaults)
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+ dev->dev.platform_data = NULL;
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+
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return 0;
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}
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@@ -180,6 +199,11 @@ static int ohci_platform_resume(struct device *dev)
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#define ohci_platform_resume NULL
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#endif /* CONFIG_PM */
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+static const struct of_device_id ralink_ohci_ids[] = {
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+ { .compatible = "ralink,rt3xxx-ohci", },
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+ {}
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+};
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+
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static const struct platform_device_id ohci_platform_table[] = {
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{ "ohci-platform", 0 },
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{ }
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@@ -200,6 +224,7 @@ static struct platform_driver ohci_platform_driver = {
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.owner = THIS_MODULE,
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.name = "ohci-platform",
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.pm = &ohci_platform_pm_ops,
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+ .of_match_table = of_match_ptr(ralink_ohci_ids),
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}
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};
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--
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1.7.10.4
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