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-rw-r--r--arch/arm/mach-imx/clk-imx25.c6
-rw-r--r--arch/arm/mach-imx/clk-imx27.c6
-rw-r--r--arch/arm/mach-imx/clk-imx31.c6
-rw-r--r--arch/arm/mach-imx/clk-imx35.c6
-rw-r--r--arch/arm/mach-imx/clk-imx51-imx53.c6
-rw-r--r--arch/arm/mach-imx/devices/devices-common.h1
-rw-r--r--arch/arm/mach-imx/devices/platform-fsl-usb2-udc.c15
-rw-r--r--drivers/usb/dwc3/gadget.c1
-rw-r--r--drivers/usb/gadget/f_fs.c6
-rw-r--r--drivers/usb/gadget/fsl_mxc_udc.c40
-rw-r--r--drivers/usb/gadget/fsl_udc_core.c42
-rw-r--r--drivers/usb/gadget/fsl_usb2_udc.h5
-rw-r--r--drivers/usb/host/Kconfig2
-rw-r--r--drivers/usb/host/Makefile1
-rw-r--r--drivers/usb/host/ehci-hcd.c12
-rw-r--r--drivers/usb/host/ehci-mxc.c120
-rw-r--r--drivers/usb/host/ehci.h7
-rw-r--r--drivers/usb/host/uhci-hcd.c15
-rw-r--r--drivers/usb/musb/cppi_dma.c4
19 files changed, 154 insertions, 147 deletions
diff --git a/arch/arm/mach-imx/clk-imx25.c b/arch/arm/mach-imx/clk-imx25.c
index b197aa7..2c570cd 100644
--- a/arch/arm/mach-imx/clk-imx25.c
+++ b/arch/arm/mach-imx/clk-imx25.c
@@ -254,9 +254,9 @@ int __init mx25_clocks_init(void)
clk_register_clkdev(clk[ipg], "ipg", "mxc-ehci.2");
clk_register_clkdev(clk[usbotg_ahb], "ahb", "mxc-ehci.2");
clk_register_clkdev(clk[usb_div], "per", "mxc-ehci.2");
- clk_register_clkdev(clk[ipg], "ipg", "fsl-usb2-udc");
- clk_register_clkdev(clk[usbotg_ahb], "ahb", "fsl-usb2-udc");
- clk_register_clkdev(clk[usb_div], "per", "fsl-usb2-udc");
+ clk_register_clkdev(clk[ipg], "ipg", "imx-udc-mx27");
+ clk_register_clkdev(clk[usbotg_ahb], "ahb", "imx-udc-mx27");
+ clk_register_clkdev(clk[usb_div], "per", "imx-udc-mx27");
clk_register_clkdev(clk[nfc_ipg_per], NULL, "imx25-nand.0");
/* i.mx25 has the i.mx35 type cspi */
clk_register_clkdev(clk[cspi1_ipg], NULL, "imx35-cspi.0");
diff --git a/arch/arm/mach-imx/clk-imx27.c b/arch/arm/mach-imx/clk-imx27.c
index 4c1d1e4..1ffe3b534 100644
--- a/arch/arm/mach-imx/clk-imx27.c
+++ b/arch/arm/mach-imx/clk-imx27.c
@@ -236,9 +236,9 @@ int __init mx27_clocks_init(unsigned long fref)
clk_register_clkdev(clk[lcdc_ahb_gate], "ahb", "imx21-fb.0");
clk_register_clkdev(clk[csi_ahb_gate], "ahb", "imx27-camera.0");
clk_register_clkdev(clk[per4_gate], "per", "imx27-camera.0");
- clk_register_clkdev(clk[usb_div], "per", "fsl-usb2-udc");
- clk_register_clkdev(clk[usb_ipg_gate], "ipg", "fsl-usb2-udc");
- clk_register_clkdev(clk[usb_ahb_gate], "ahb", "fsl-usb2-udc");
+ clk_register_clkdev(clk[usb_div], "per", "imx-udc-mx27");
+ clk_register_clkdev(clk[usb_ipg_gate], "ipg", "imx-udc-mx27");
+ clk_register_clkdev(clk[usb_ahb_gate], "ahb", "imx-udc-mx27");
clk_register_clkdev(clk[usb_div], "per", "mxc-ehci.0");
clk_register_clkdev(clk[usb_ipg_gate], "ipg", "mxc-ehci.0");
clk_register_clkdev(clk[usb_ahb_gate], "ahb", "mxc-ehci.0");
diff --git a/arch/arm/mach-imx/clk-imx31.c b/arch/arm/mach-imx/clk-imx31.c
index 8be64e0..16ccbd4 100644
--- a/arch/arm/mach-imx/clk-imx31.c
+++ b/arch/arm/mach-imx/clk-imx31.c
@@ -139,9 +139,9 @@ int __init mx31_clocks_init(unsigned long fref)
clk_register_clkdev(clk[usb_div_post], "per", "mxc-ehci.2");
clk_register_clkdev(clk[usb_gate], "ahb", "mxc-ehci.2");
clk_register_clkdev(clk[ipg], "ipg", "mxc-ehci.2");
- clk_register_clkdev(clk[usb_div_post], "per", "fsl-usb2-udc");
- clk_register_clkdev(clk[usb_gate], "ahb", "fsl-usb2-udc");
- clk_register_clkdev(clk[ipg], "ipg", "fsl-usb2-udc");
+ clk_register_clkdev(clk[usb_div_post], "per", "imx-udc-mx27");
+ clk_register_clkdev(clk[usb_gate], "ahb", "imx-udc-mx27");
+ clk_register_clkdev(clk[ipg], "ipg", "imx-udc-mx27");
clk_register_clkdev(clk[csi_gate], NULL, "mx3-camera.0");
/* i.mx31 has the i.mx21 type uart */
clk_register_clkdev(clk[uart1_gate], "per", "imx21-uart.0");
diff --git a/arch/arm/mach-imx/clk-imx35.c b/arch/arm/mach-imx/clk-imx35.c
index 66f3d65..f0727e8 100644
--- a/arch/arm/mach-imx/clk-imx35.c
+++ b/arch/arm/mach-imx/clk-imx35.c
@@ -251,9 +251,9 @@ int __init mx35_clocks_init()
clk_register_clkdev(clk[usb_div], "per", "mxc-ehci.2");
clk_register_clkdev(clk[ipg], "ipg", "mxc-ehci.2");
clk_register_clkdev(clk[usbotg_gate], "ahb", "mxc-ehci.2");
- clk_register_clkdev(clk[usb_div], "per", "fsl-usb2-udc");
- clk_register_clkdev(clk[ipg], "ipg", "fsl-usb2-udc");
- clk_register_clkdev(clk[usbotg_gate], "ahb", "fsl-usb2-udc");
+ clk_register_clkdev(clk[usb_div], "per", "imx-udc-mx27");
+ clk_register_clkdev(clk[ipg], "ipg", "imx-udc-mx27");
+ clk_register_clkdev(clk[usbotg_gate], "ahb", "imx-udc-mx27");
clk_register_clkdev(clk[wdog_gate], NULL, "imx2-wdt.0");
clk_register_clkdev(clk[nfc_div], NULL, "imx25-nand.0");
clk_register_clkdev(clk[csi_gate], NULL, "mx3-camera.0");
diff --git a/arch/arm/mach-imx/clk-imx51-imx53.c b/arch/arm/mach-imx/clk-imx51-imx53.c
index 579023f..fb7cb84 100644
--- a/arch/arm/mach-imx/clk-imx51-imx53.c
+++ b/arch/arm/mach-imx/clk-imx51-imx53.c
@@ -269,9 +269,9 @@ static void __init mx5_clocks_common_init(unsigned long rate_ckil,
clk_register_clkdev(clk[usboh3_per_gate], "per", "mxc-ehci.2");
clk_register_clkdev(clk[usboh3_gate], "ipg", "mxc-ehci.2");
clk_register_clkdev(clk[usboh3_gate], "ahb", "mxc-ehci.2");
- clk_register_clkdev(clk[usboh3_per_gate], "per", "fsl-usb2-udc");
- clk_register_clkdev(clk[usboh3_gate], "ipg", "fsl-usb2-udc");
- clk_register_clkdev(clk[usboh3_gate], "ahb", "fsl-usb2-udc");
+ clk_register_clkdev(clk[usboh3_per_gate], "per", "imx-udc-mx51");
+ clk_register_clkdev(clk[usboh3_gate], "ipg", "imx-udc-mx51");
+ clk_register_clkdev(clk[usboh3_gate], "ahb", "imx-udc-mx51");
clk_register_clkdev(clk[nfc_gate], NULL, "imx51-nand");
clk_register_clkdev(clk[ssi1_ipg_gate], NULL, "imx-ssi.0");
clk_register_clkdev(clk[ssi2_ipg_gate], NULL, "imx-ssi.1");
diff --git a/arch/arm/mach-imx/devices/devices-common.h b/arch/arm/mach-imx/devices/devices-common.h
index 6277baf..9bd5777 100644
--- a/arch/arm/mach-imx/devices/devices-common.h
+++ b/arch/arm/mach-imx/devices/devices-common.h
@@ -63,6 +63,7 @@ struct platform_device *__init imx_add_flexcan(
#include <linux/fsl_devices.h>
struct imx_fsl_usb2_udc_data {
+ const char *devid;
resource_size_t iobase;
resource_size_t irq;
};
diff --git a/arch/arm/mach-imx/devices/platform-fsl-usb2-udc.c b/arch/arm/mach-imx/devices/platform-fsl-usb2-udc.c
index 37e4439..3c06bd9 100644
--- a/arch/arm/mach-imx/devices/platform-fsl-usb2-udc.c
+++ b/arch/arm/mach-imx/devices/platform-fsl-usb2-udc.c
@@ -11,35 +11,36 @@
#include "../hardware.h"
#include "devices-common.h"
-#define imx_fsl_usb2_udc_data_entry_single(soc) \
+#define imx_fsl_usb2_udc_data_entry_single(soc, _devid) \
{ \
+ .devid = _devid, \
.iobase = soc ## _USB_OTG_BASE_ADDR, \
.irq = soc ## _INT_USB_OTG, \
}
#ifdef CONFIG_SOC_IMX25
const struct imx_fsl_usb2_udc_data imx25_fsl_usb2_udc_data __initconst =
- imx_fsl_usb2_udc_data_entry_single(MX25);
+ imx_fsl_usb2_udc_data_entry_single(MX25, "imx-udc-mx27");
#endif /* ifdef CONFIG_SOC_IMX25 */
#ifdef CONFIG_SOC_IMX27
const struct imx_fsl_usb2_udc_data imx27_fsl_usb2_udc_data __initconst =
- imx_fsl_usb2_udc_data_entry_single(MX27);
+ imx_fsl_usb2_udc_data_entry_single(MX27, "imx-udc-mx27");
#endif /* ifdef CONFIG_SOC_IMX27 */
#ifdef CONFIG_SOC_IMX31
const struct imx_fsl_usb2_udc_data imx31_fsl_usb2_udc_data __initconst =
- imx_fsl_usb2_udc_data_entry_single(MX31);
+ imx_fsl_usb2_udc_data_entry_single(MX31, "imx-udc-mx27");
#endif /* ifdef CONFIG_SOC_IMX31 */
#ifdef CONFIG_SOC_IMX35
const struct imx_fsl_usb2_udc_data imx35_fsl_usb2_udc_data __initconst =
- imx_fsl_usb2_udc_data_entry_single(MX35);
+ imx_fsl_usb2_udc_data_entry_single(MX35, "imx-udc-mx27");
#endif /* ifdef CONFIG_SOC_IMX35 */
#ifdef CONFIG_SOC_IMX51
const struct imx_fsl_usb2_udc_data imx51_fsl_usb2_udc_data __initconst =
- imx_fsl_usb2_udc_data_entry_single(MX51);
+ imx_fsl_usb2_udc_data_entry_single(MX51, "imx-udc-mx51");
#endif
struct platform_device *__init imx_add_fsl_usb2_udc(
@@ -57,7 +58,7 @@ struct platform_device *__init imx_add_fsl_usb2_udc(
.flags = IORESOURCE_IRQ,
},
};
- return imx_add_platform_device_dmamask("fsl-usb2-udc", -1,
+ return imx_add_platform_device_dmamask(data->devid, -1,
res, ARRAY_SIZE(res),
pdata, sizeof(*pdata), DMA_BIT_MASK(32));
}
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 2e43b33..2fdd767 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1605,6 +1605,7 @@ static int dwc3_gadget_init_endpoints(struct dwc3 *dwc)
if (epnum == 0 || epnum == 1) {
dep->endpoint.maxpacket = 512;
+ dep->endpoint.maxburst = 1;
dep->endpoint.ops = &dwc3_gadget_ep0_ops;
if (!epnum)
dwc->gadget.ep0 = &dep->endpoint;
diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c
index 4a6961c..8c2f251 100644
--- a/drivers/usb/gadget/f_fs.c
+++ b/drivers/usb/gadget/f_fs.c
@@ -1153,15 +1153,15 @@ static int ffs_fs_parse_opts(struct ffs_sb_fill_data *data, char *opts)
pr_err("%s: unmapped value: %lu\n", opts, value);
return -EINVAL;
}
- }
- else if (!memcmp(opts, "gid", 3))
+ } else if (!memcmp(opts, "gid", 3)) {
data->perms.gid = make_kgid(current_user_ns(), value);
if (!gid_valid(data->perms.gid)) {
pr_err("%s: unmapped value: %lu\n", opts, value);
return -EINVAL;
}
- else
+ } else {
goto invalid;
+ }
break;
default:
diff --git a/drivers/usb/gadget/fsl_mxc_udc.c b/drivers/usb/gadget/fsl_mxc_udc.c
index 1b0f086..d3bd7b0 100644
--- a/drivers/usb/gadget/fsl_mxc_udc.c
+++ b/drivers/usb/gadget/fsl_mxc_udc.c
@@ -18,14 +18,13 @@
#include <linux/platform_device.h>
#include <linux/io.h>
-#include <mach/hardware.h>
-
static struct clk *mxc_ahb_clk;
static struct clk *mxc_per_clk;
static struct clk *mxc_ipg_clk;
/* workaround ENGcm09152 for i.MX35 */
-#define USBPHYCTRL_OTGBASE_OFFSET 0x608
+#define MX35_USBPHYCTRL_OFFSET 0x600
+#define USBPHYCTRL_OTGBASE_OFFSET 0x8
#define USBPHYCTRL_EVDO (1 << 23)
int fsl_udc_clk_init(struct platform_device *pdev)
@@ -59,7 +58,7 @@ int fsl_udc_clk_init(struct platform_device *pdev)
clk_prepare_enable(mxc_per_clk);
/* make sure USB_CLK is running at 60 MHz +/- 1000 Hz */
- if (!cpu_is_mx51()) {
+ if (!strcmp(pdev->id_entry->name, "imx-udc-mx27")) {
freq = clk_get_rate(mxc_per_clk);
if (pdata->phy_mode != FSL_USB2_PHY_ULPI &&
(freq < 59999000 || freq > 60001000)) {
@@ -79,27 +78,40 @@ eclkrate:
return ret;
}
-void fsl_udc_clk_finalize(struct platform_device *pdev)
+int fsl_udc_clk_finalize(struct platform_device *pdev)
{
struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
- if (cpu_is_mx35()) {
- unsigned int v;
+ int ret = 0;
- /* workaround ENGcm09152 for i.MX35 */
- if (pdata->workaround & FLS_USB2_WORKAROUND_ENGCM09152) {
- v = readl(MX35_IO_ADDRESS(MX35_USB_BASE_ADDR +
- USBPHYCTRL_OTGBASE_OFFSET));
- writel(v | USBPHYCTRL_EVDO,
- MX35_IO_ADDRESS(MX35_USB_BASE_ADDR +
- USBPHYCTRL_OTGBASE_OFFSET));
+ /* workaround ENGcm09152 for i.MX35 */
+ if (pdata->workaround & FLS_USB2_WORKAROUND_ENGCM09152) {
+ unsigned int v;
+ struct resource *res = platform_get_resource
+ (pdev, IORESOURCE_MEM, 0);
+ void __iomem *phy_regs = ioremap(res->start +
+ MX35_USBPHYCTRL_OFFSET, 512);
+ if (!phy_regs) {
+ dev_err(&pdev->dev, "ioremap for phy address fails\n");
+ ret = -EINVAL;
+ goto ioremap_err;
}
+
+ v = readl(phy_regs + USBPHYCTRL_OTGBASE_OFFSET);
+ writel(v | USBPHYCTRL_EVDO,
+ phy_regs + USBPHYCTRL_OTGBASE_OFFSET);
+
+ iounmap(phy_regs);
}
+
+ioremap_err:
/* ULPI transceivers don't need usbpll */
if (pdata->phy_mode == FSL_USB2_PHY_ULPI) {
clk_disable_unprepare(mxc_per_clk);
mxc_per_clk = NULL;
}
+
+ return ret;
}
void fsl_udc_clk_release(void)
diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c
index c19f7f1..667275c 100644
--- a/drivers/usb/gadget/fsl_udc_core.c
+++ b/drivers/usb/gadget/fsl_udc_core.c
@@ -41,6 +41,7 @@
#include <linux/fsl_devices.h>
#include <linux/dmapool.h>
#include <linux/delay.h>
+#include <linux/of_device.h>
#include <asm/byteorder.h>
#include <asm/io.h>
@@ -2438,11 +2439,6 @@ static int __init fsl_udc_probe(struct platform_device *pdev)
unsigned int i;
u32 dccparams;
- if (strcmp(pdev->name, driver_name)) {
- VDBG("Wrong device");
- return -ENODEV;
- }
-
udc_controller = kzalloc(sizeof(struct fsl_udc), GFP_KERNEL);
if (udc_controller == NULL) {
ERR("malloc udc failed\n");
@@ -2547,7 +2543,9 @@ static int __init fsl_udc_probe(struct platform_device *pdev)
dr_controller_setup(udc_controller);
}
- fsl_udc_clk_finalize(pdev);
+ ret = fsl_udc_clk_finalize(pdev);
+ if (ret)
+ goto err_free_irq;
/* Setup gadget structure */
udc_controller->gadget.ops = &fsl_gadget_ops;
@@ -2756,22 +2754,32 @@ static int fsl_udc_otg_resume(struct device *dev)
return fsl_udc_resume(NULL);
}
-
/*-------------------------------------------------------------------------
Register entry point for the peripheral controller driver
--------------------------------------------------------------------------*/
-
+static const struct platform_device_id fsl_udc_devtype[] = {
+ {
+ .name = "imx-udc-mx27",
+ }, {
+ .name = "imx-udc-mx51",
+ }, {
+ /* sentinel */
+ }
+};
+MODULE_DEVICE_TABLE(platform, fsl_udc_devtype);
static struct platform_driver udc_driver = {
- .remove = __exit_p(fsl_udc_remove),
+ .remove = __exit_p(fsl_udc_remove),
+ /* Just for FSL i.mx SoC currently */
+ .id_table = fsl_udc_devtype,
/* these suspend and resume are not usb suspend and resume */
- .suspend = fsl_udc_suspend,
- .resume = fsl_udc_resume,
- .driver = {
- .name = (char *)driver_name,
- .owner = THIS_MODULE,
- /* udc suspend/resume called from OTG driver */
- .suspend = fsl_udc_otg_suspend,
- .resume = fsl_udc_otg_resume,
+ .suspend = fsl_udc_suspend,
+ .resume = fsl_udc_resume,
+ .driver = {
+ .name = (char *)driver_name,
+ .owner = THIS_MODULE,
+ /* udc suspend/resume called from OTG driver */
+ .suspend = fsl_udc_otg_suspend,
+ .resume = fsl_udc_otg_resume,
},
};
diff --git a/drivers/usb/gadget/fsl_usb2_udc.h b/drivers/usb/gadget/fsl_usb2_udc.h
index f61a967..c6703bb 100644
--- a/drivers/usb/gadget/fsl_usb2_udc.h
+++ b/drivers/usb/gadget/fsl_usb2_udc.h
@@ -592,15 +592,16 @@ static inline struct ep_queue_head *get_qh_by_ep(struct fsl_ep *ep)
struct platform_device;
#ifdef CONFIG_ARCH_MXC
int fsl_udc_clk_init(struct platform_device *pdev);
-void fsl_udc_clk_finalize(struct platform_device *pdev);
+int fsl_udc_clk_finalize(struct platform_device *pdev);
void fsl_udc_clk_release(void);
#else
static inline int fsl_udc_clk_init(struct platform_device *pdev)
{
return 0;
}
-static inline void fsl_udc_clk_finalize(struct platform_device *pdev)
+static inline int fsl_udc_clk_finalize(struct platform_device *pdev)
{
+ return 0;
}
static inline void fsl_udc_clk_release(void)
{
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index d6bb128..3a21c5d 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -148,7 +148,7 @@ config USB_EHCI_FSL
Variation of ARC USB block used in some Freescale chips.
config USB_EHCI_MXC
- bool "Support for Freescale i.MX on-chip EHCI USB controller"
+ tristate "Support for Freescale i.MX on-chip EHCI USB controller"
depends on USB_EHCI_HCD && ARCH_MXC
select USB_EHCI_ROOT_HUB_TT
---help---
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index 1eb4c30..001fbff 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -26,6 +26,7 @@ obj-$(CONFIG_PCI) += pci-quirks.o
obj-$(CONFIG_USB_EHCI_HCD) += ehci-hcd.o
obj-$(CONFIG_USB_EHCI_PCI) += ehci-pci.o
obj-$(CONFIG_USB_EHCI_HCD_PLATFORM) += ehci-platform.o
+obj-$(CONFIG_USB_EHCI_MXC) += ehci-mxc.o
obj-$(CONFIG_USB_OXU210HP_HCD) += oxu210hp-hcd.o
obj-$(CONFIG_USB_ISP116X_HCD) += isp116x-hcd.o
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index c97503b..09537b2 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -74,10 +74,6 @@ static const char hcd_name [] = "ehci_hcd";
#undef VERBOSE_DEBUG
#undef EHCI_URB_TRACE
-#ifdef DEBUG
-#define EHCI_STATS
-#endif
-
/* magic numbers that can affect system performance */
#define EHCI_TUNE_CERR 3 /* 0-3 qtd retries; 0 == don't stop */
#define EHCI_TUNE_RL_HS 4 /* nak throttle; see 4.9 */
@@ -1250,11 +1246,6 @@ MODULE_LICENSE ("GPL");
#define PLATFORM_DRIVER ehci_fsl_driver
#endif
-#ifdef CONFIG_USB_EHCI_MXC
-#include "ehci-mxc.c"
-#define PLATFORM_DRIVER ehci_mxc_driver
-#endif
-
#ifdef CONFIG_USB_EHCI_SH
#include "ehci-sh.c"
#define PLATFORM_DRIVER ehci_hcd_sh_driver
@@ -1352,7 +1343,8 @@ MODULE_LICENSE ("GPL");
#if !IS_ENABLED(CONFIG_USB_EHCI_PCI) && \
!IS_ENABLED(CONFIG_USB_EHCI_HCD_PLATFORM) && \
- !defined(CONFIG_USB_CHIPIDEA_HOST) && \
+ !IS_ENABLED(CONFIG_USB_CHIPIDEA_HOST) && \
+ !IS_ENABLED(CONFIG_USB_EHCI_MXC) && \
!defined(PLATFORM_DRIVER) && \
!defined(PS3_SYSTEM_BUS_DRIVER) && \
!defined(OF_PLATFORM_DRIVER) && \
diff --git a/drivers/usb/host/ehci-mxc.c b/drivers/usb/host/ehci-mxc.c
index ec7f5d2..dedb80b 100644
--- a/drivers/usb/host/ehci-mxc.c
+++ b/drivers/usb/host/ehci-mxc.c
@@ -17,75 +17,38 @@
* Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/usb/otg.h>
#include <linux/usb/ulpi.h>
#include <linux/slab.h>
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
#include <linux/platform_data/usb-ehci-mxc.h>
#include <asm/mach-types.h>
+#include "ehci.h"
+
+#define DRIVER_DESC "Freescale On-Chip EHCI Host driver"
+
+static const char hcd_name[] = "ehci-mxc";
+
#define ULPI_VIEWPORT_OFFSET 0x170
struct ehci_mxc_priv {
struct clk *usbclk, *ahbclk, *phyclk;
- struct usb_hcd *hcd;
};
-/* called during probe() after chip reset completes */
-static int ehci_mxc_setup(struct usb_hcd *hcd)
-{
- hcd->has_tt = 1;
-
- return ehci_setup(hcd);
-}
+static struct hc_driver __read_mostly ehci_mxc_hc_driver;
-static const struct hc_driver ehci_mxc_hc_driver = {
- .description = hcd_name,
- .product_desc = "Freescale On-Chip EHCI Host Controller",
- .hcd_priv_size = sizeof(struct ehci_hcd),
-
- /*
- * generic hardware linkage
- */
- .irq = ehci_irq,
- .flags = HCD_USB2 | HCD_MEMORY,
-
- /*
- * basic lifecycle operations
- */
- .reset = ehci_mxc_setup,
- .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,
- .bus_suspend = ehci_bus_suspend,
- .bus_resume = ehci_bus_resume,
- .relinquish_port = ehci_relinquish_port,
- .port_handed_over = ehci_port_handed_over,
-
- .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
+static const struct ehci_driver_overrides ehci_mxc_overrides __initdata = {
+ .extra_priv_size = sizeof(struct ehci_mxc_priv),
};
static int ehci_mxc_drv_probe(struct platform_device *pdev)
@@ -112,12 +75,6 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev)
if (!hcd)
return -ENOMEM;
- priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
- if (!priv) {
- ret = -ENOMEM;
- goto err_alloc;
- }
-
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(dev, "Found HC with no register addr. Check setup!\n");
@@ -135,6 +92,10 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev)
goto err_alloc;
}
+ hcd->has_tt = 1;
+ ehci = hcd_to_ehci(hcd);
+ priv = (struct ehci_mxc_priv *) ehci->priv;
+
/* enable clocks */
priv->usbclk = devm_clk_get(&pdev->dev, "ipg");
if (IS_ERR(priv->usbclk)) {
@@ -169,8 +130,6 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev)
mdelay(10);
}
- ehci = hcd_to_ehci(hcd);
-
/* EHCI registers start at offset 0x100 */
ehci->caps = hcd->regs + 0x100;
ehci->regs = hcd->regs + 0x100 +
@@ -198,8 +157,7 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev)
}
}
- priv->hcd = hcd;
- platform_set_drvdata(pdev, priv);
+ platform_set_drvdata(pdev, hcd);
ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
if (ret)
@@ -244,8 +202,11 @@ err_alloc:
static int __exit ehci_mxc_drv_remove(struct platform_device *pdev)
{
struct mxc_usbh_platform_data *pdata = pdev->dev.platform_data;
- struct ehci_mxc_priv *priv = platform_get_drvdata(pdev);
- struct usb_hcd *hcd = priv->hcd;
+ struct usb_hcd *hcd = platform_get_drvdata(pdev);
+ struct ehci_hcd *ehci = hcd_to_ehci(hcd);
+ struct ehci_mxc_priv *priv = (struct ehci_mxc_priv *) ehci->priv;
+
+ usb_remove_hcd(hcd);
if (pdata && pdata->exit)
pdata->exit(pdev);
@@ -253,23 +214,20 @@ static int __exit ehci_mxc_drv_remove(struct platform_device *pdev)
if (pdata->otg)
usb_phy_shutdown(pdata->otg);
- usb_remove_hcd(hcd);
- usb_put_hcd(hcd);
- platform_set_drvdata(pdev, NULL);
-
clk_disable_unprepare(priv->usbclk);
clk_disable_unprepare(priv->ahbclk);
if (priv->phyclk)
clk_disable_unprepare(priv->phyclk);
+ usb_put_hcd(hcd);
+ platform_set_drvdata(pdev, NULL);
return 0;
}
static void ehci_mxc_drv_shutdown(struct platform_device *pdev)
{
- struct ehci_mxc_priv *priv = platform_get_drvdata(pdev);
- struct usb_hcd *hcd = priv->hcd;
+ struct usb_hcd *hcd = platform_get_drvdata(pdev);
if (hcd->driver->shutdown)
hcd->driver->shutdown(hcd);
@@ -279,9 +237,31 @@ MODULE_ALIAS("platform:mxc-ehci");
static struct platform_driver ehci_mxc_driver = {
.probe = ehci_mxc_drv_probe,
- .remove = __exit_p(ehci_mxc_drv_remove),
+ .remove = ehci_mxc_drv_remove,
.shutdown = ehci_mxc_drv_shutdown,
.driver = {
.name = "mxc-ehci",
},
};
+
+static int __init ehci_mxc_init(void)
+{
+ if (usb_disabled())
+ return -ENODEV;
+
+ pr_info("%s: " DRIVER_DESC "\n", hcd_name);
+
+ ehci_init_driver(&ehci_mxc_hc_driver, &ehci_mxc_overrides);
+ return platform_driver_register(&ehci_mxc_driver);
+}
+module_init(ehci_mxc_init);
+
+static void __exit ehci_mxc_cleanup(void)
+{
+ platform_driver_unregister(&ehci_mxc_driver);
+}
+module_exit(ehci_mxc_cleanup);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_AUTHOR("Sascha Hauer");
+MODULE_LICENSE("GPL");
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index 9dadc71..36c3a82 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -38,6 +38,10 @@ typedef __u16 __bitwise __hc16;
#endif
/* statistics can be kept for tuning/monitoring */
+#ifdef DEBUG
+#define EHCI_STATS
+#endif
+
struct ehci_stats {
/* irq usage */
unsigned long normal;
@@ -221,6 +225,9 @@ struct ehci_hcd { /* one per controller */
#ifdef DEBUG
struct dentry *debug_dir;
#endif
+
+ /* platform-specific data -- must come last */
+ unsigned long priv[0] __aligned(sizeof(s64));
};
/* convert between an HCD pointer and the corresponding EHCI_HCD */
diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c
index 4b9e9ab..4f64d24 100644
--- a/drivers/usb/host/uhci-hcd.c
+++ b/drivers/usb/host/uhci-hcd.c
@@ -447,6 +447,10 @@ static irqreturn_t uhci_irq(struct usb_hcd *hcd)
return IRQ_NONE;
uhci_writew(uhci, status, USBSTS); /* Clear it */
+ spin_lock(&uhci->lock);
+ if (unlikely(!uhci->is_initialized)) /* not yet configured */
+ goto done;
+
if (status & ~(USBSTS_USBINT | USBSTS_ERROR | USBSTS_RD)) {
if (status & USBSTS_HSE)
dev_err(uhci_dev(uhci), "host system error, "
@@ -455,7 +459,6 @@ static irqreturn_t uhci_irq(struct usb_hcd *hcd)
dev_err(uhci_dev(uhci), "host controller process "
"error, something bad happened!\n");
if (status & USBSTS_HCH) {
- spin_lock(&uhci->lock);
if (uhci->rh_state >= UHCI_RH_RUNNING) {
dev_err(uhci_dev(uhci),
"host controller halted, "
@@ -473,15 +476,15 @@ static irqreturn_t uhci_irq(struct usb_hcd *hcd)
* pending unlinks */
mod_timer(&hcd->rh_timer, jiffies);
}
- spin_unlock(&uhci->lock);
}
}
- if (status & USBSTS_RD)
+ if (status & USBSTS_RD) {
+ spin_unlock(&uhci->lock);
usb_hcd_poll_rh_status(hcd);
- else {
- spin_lock(&uhci->lock);
+ } else {
uhci_scan_schedule(uhci);
+ done:
spin_unlock(&uhci->lock);
}
@@ -662,9 +665,9 @@ static int uhci_start(struct usb_hcd *hcd)
*/
mb();
+ spin_lock_irq(&uhci->lock);
configure_hc(uhci);
uhci->is_initialized = 1;
- spin_lock_irq(&uhci->lock);
start_rh(uhci);
spin_unlock_irq(&uhci->lock);
return 0;
diff --git a/drivers/usb/musb/cppi_dma.c b/drivers/usb/musb/cppi_dma.c
index 0968dd7..f522000 100644
--- a/drivers/usb/musb/cppi_dma.c
+++ b/drivers/usb/musb/cppi_dma.c
@@ -105,7 +105,7 @@ static void cppi_reset_tx(struct cppi_tx_stateram __iomem *tx, u32 ptr)
musb_writel(&tx->tx_complete, 0, ptr);
}
-static void __init cppi_pool_init(struct cppi *cppi, struct cppi_channel *c)
+static void cppi_pool_init(struct cppi *cppi, struct cppi_channel *c)
{
int j;
@@ -150,7 +150,7 @@ static void cppi_pool_free(struct cppi_channel *c)
c->last_processed = NULL;
}
-static int __init cppi_controller_start(struct dma_controller *c)
+static int cppi_controller_start(struct dma_controller *c)
{
struct cppi *controller;
void __iomem *tibase;
generated by cgit v0.10.2 at 2024-11-21 09:27:59 (GMT)