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-rw-r--r--arch/arm/mach-pxa/mainstone.c21
-rw-r--r--arch/arm/mach-pxa/pxa27x.c6
-rw-r--r--drivers/usb/host/ohci-pxa27x.c85
-rw-r--r--include/asm-arm/arch-pxa/ohci.h18
4 files changed, 88 insertions, 42 deletions
diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c
index 07892f4..277498a 100644
--- a/arch/arm/mach-pxa/mainstone.c
+++ b/arch/arm/mach-pxa/mainstone.c
@@ -43,6 +43,7 @@
#include <asm/arch/pxafb.h>
#include <asm/arch/mmc.h>
#include <asm/arch/irda.h>
+#include <asm/arch/ohci.h>
#include "generic.h"
@@ -393,6 +394,25 @@ static struct platform_device *platform_devices[] __initdata = {
&mst_flash_device[1],
};
+static int mainstone_ohci_init(struct device *dev)
+{
+ /* setup Port1 GPIO pin. */
+ pxa_gpio_mode( 88 | GPIO_ALT_FN_1_IN); /* USBHPWR1 */
+ pxa_gpio_mode( 89 | GPIO_ALT_FN_2_OUT); /* USBHPEN1 */
+
+ /* Set the Power Control Polarity Low and Power Sense
+ Polarity Low to active low. */
+ UHCHR = (UHCHR | UHCHR_PCPL | UHCHR_PSPL) &
+ ~(UHCHR_SSEP1 | UHCHR_SSEP2 | UHCHR_SSEP3 | UHCHR_SSE);
+
+ return 0;
+}
+
+static struct pxaohci_platform_data mainstone_ohci_platform_data = {
+ .port_mode = PMM_PERPORT_MODE,
+ .init = mainstone_ohci_init,
+};
+
static void __init mainstone_init(void)
{
int SW7 = 0; /* FIXME: get from SCR (Mst doc section 3.2.1.1) */
@@ -424,6 +444,7 @@ static void __init mainstone_init(void)
pxa_set_mci_info(&mainstone_mci_platform_data);
pxa_set_ficp_info(&mainstone_ficp_platform_data);
+ pxa_set_ohci_info(&mainstone_ohci_platform_data);
}
diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index c722a9a..b41b1ef 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -21,6 +21,7 @@
#include <asm/hardware.h>
#include <asm/irq.h>
#include <asm/arch/pxa-regs.h>
+#include <asm/arch/ohci.h>
#include "generic.h"
@@ -194,6 +195,11 @@ static struct platform_device ohci_device = {
.resource = pxa27x_ohci_resources,
};
+void __init pxa_set_ohci_info(struct pxaohci_platform_data *info)
+{
+ ohci_device.dev.platform_data = info;
+}
+
static struct platform_device *devices[] __initdata = {
&ohci_device,
};
diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c
index 9d65ec3..c165d1e 100644
--- a/drivers/usb/host/ohci-pxa27x.c
+++ b/drivers/usb/host/ohci-pxa27x.c
@@ -26,18 +26,12 @@
#include <asm/mach-types.h>
#include <asm/hardware.h>
#include <asm/arch/pxa-regs.h>
-
-
-#define PMM_NPS_MODE 1
-#define PMM_GLOBAL_MODE 2
-#define PMM_PERPORT_MODE 3
+#include <asm/arch/ohci.h>
#define PXA_UHC_MAX_PORTNUM 3
#define UHCRHPS(x) __REG2( 0x4C000050, (x)<<2 )
-static int pxa27x_ohci_pmm_state;
-
/*
PMM_NPS_MODE -- PMM Non-power switching mode
Ports are powered continuously.
@@ -50,8 +44,6 @@ static int pxa27x_ohci_pmm_state;
*/
static int pxa27x_ohci_select_pmm( int mode )
{
- pxa27x_ohci_pmm_state = mode;
-
switch ( mode ) {
case PMM_NPS_MODE:
UHCRHDA |= RH_A_NPS;
@@ -71,7 +63,6 @@ static int pxa27x_ohci_select_pmm( int mode )
"Invalid mode %d, set to non-power switch mode.\n",
mode );
- pxa27x_ohci_pmm_state = PMM_NPS_MODE;
UHCRHDA |= RH_A_NPS;
}
@@ -82,8 +73,13 @@ extern int usb_disabled(void);
/*-------------------------------------------------------------------------*/
-static void pxa27x_start_hc(struct platform_device *dev)
+static int pxa27x_start_hc(struct device *dev)
{
+ int retval = 0;
+ struct pxaohci_platform_data *inf;
+
+ inf = dev->platform_data;
+
pxa_set_cken(CKEN10_USBHOST, 1);
UHCHR |= UHCHR_FHR;
@@ -94,21 +90,11 @@ static void pxa27x_start_hc(struct platform_device *dev)
while (UHCHR & UHCHR_FSBIR)
cpu_relax();
- /* This could be properly abstracted away through the
- device data the day more machines are supported and
- their differences can be figured out correctly. */
- if (machine_is_mainstone()) {
- /* setup Port1 GPIO pin. */
- pxa_gpio_mode( 88 | GPIO_ALT_FN_1_IN); /* USBHPWR1 */
- pxa_gpio_mode( 89 | GPIO_ALT_FN_2_OUT); /* USBHPEN1 */
-
- /* Set the Power Control Polarity Low and Power Sense
- Polarity Low to active low. Supply power to USB ports. */
- UHCHR = (UHCHR | UHCHR_PCPL | UHCHR_PSPL) &
- ~(UHCHR_SSEP1 | UHCHR_SSEP2 | UHCHR_SSEP3 | UHCHR_SSE);
+ if (inf->init)
+ retval = inf->init(dev);
- pxa27x_ohci_pmm_state = PMM_PERPORT_MODE;
- }
+ if (retval < 0)
+ return retval;
UHCHR &= ~UHCHR_SSE;
@@ -117,10 +103,19 @@ static void pxa27x_start_hc(struct platform_device *dev)
/* Clear any OTG Pin Hold */
if (PSSR & PSSR_OTGPH)
PSSR |= PSSR_OTGPH;
+
+ return 0;
}
-static void pxa27x_stop_hc(struct platform_device *dev)
+static void pxa27x_stop_hc(struct device *dev)
{
+ struct pxaohci_platform_data *inf;
+
+ inf = dev->platform_data;
+
+ if (inf->exit)
+ inf->exit(dev);
+
UHCHR |= UHCHR_FHR;
udelay(11);
UHCHR &= ~UHCHR_FHR;
@@ -147,22 +142,27 @@ static void pxa27x_stop_hc(struct platform_device *dev)
* through the hotplug entry's driver_data.
*
*/
-int usb_hcd_pxa27x_probe (const struct hc_driver *driver,
- struct platform_device *dev)
+int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device *pdev)
{
int retval;
struct usb_hcd *hcd;
+ struct pxaohci_platform_data *inf;
+
+ inf = pdev->dev.platform_data;
- if (dev->resource[1].flags != IORESOURCE_IRQ) {
+ if (!inf)
+ return -ENODEV;
+
+ if (pdev->resource[1].flags != IORESOURCE_IRQ) {
pr_debug ("resource[1] is not IORESOURCE_IRQ");
return -ENOMEM;
}
- hcd = usb_create_hcd (driver, &dev->dev, "pxa27x");
+ hcd = usb_create_hcd (driver, &pdev->dev, "pxa27x");
if (!hcd)
return -ENOMEM;
- hcd->rsrc_start = dev->resource[0].start;
- hcd->rsrc_len = dev->resource[0].end - dev->resource[0].start + 1;
+ hcd->rsrc_start = pdev->resource[0].start;
+ hcd->rsrc_len = pdev->resource[0].end - pdev->resource[0].start + 1;
if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
pr_debug("request_mem_region failed");
@@ -177,18 +177,22 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver,
goto err2;
}
- pxa27x_start_hc(dev);
+ if ((retval = pxa27x_start_hc(&pdev->dev)) < 0) {
+ pr_debug("pxa27x_start_hc failed");
+ goto err3;
+ }
/* Select Power Management Mode */
- pxa27x_ohci_select_pmm(pxa27x_ohci_pmm_state);
+ pxa27x_ohci_select_pmm(inf->port_mode);
ohci_hcd_init(hcd_to_ohci(hcd));
- retval = usb_add_hcd(hcd, dev->resource[1].start, SA_INTERRUPT);
+ retval = usb_add_hcd(hcd, pdev->resource[1].start, SA_INTERRUPT);
if (retval == 0)
return retval;
- pxa27x_stop_hc(dev);
+ pxa27x_stop_hc(&pdev->dev);
+ err3:
iounmap(hcd->regs);
err2:
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
@@ -211,10 +215,10 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver,
* context, normally "rmmod", "apmd", or something similar.
*
*/
-void usb_hcd_pxa27x_remove (struct usb_hcd *hcd, struct platform_device *dev)
+void usb_hcd_pxa27x_remove (struct usb_hcd *hcd, struct platform_device *pdev)
{
usb_remove_hcd(hcd);
- pxa27x_stop_hc(dev);
+ pxa27x_stop_hc(&pdev->dev);
iounmap(hcd->regs);
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
usb_put_hcd(hcd);
@@ -292,15 +296,12 @@ static const struct hc_driver ohci_pxa27x_hc_driver = {
static int ohci_hcd_pxa27x_drv_probe(struct platform_device *pdev)
{
- int ret;
-
pr_debug ("In ohci_hcd_pxa27x_drv_probe");
if (usb_disabled())
return -ENODEV;
- ret = usb_hcd_pxa27x_probe(&ohci_pxa27x_hc_driver, pdev);
- return ret;
+ return usb_hcd_pxa27x_probe(&ohci_pxa27x_hc_driver, pdev);
}
static int ohci_hcd_pxa27x_drv_remove(struct platform_device *pdev)
diff --git a/include/asm-arm/arch-pxa/ohci.h b/include/asm-arm/arch-pxa/ohci.h
new file mode 100644
index 0000000..7da8956
--- /dev/null
+++ b/include/asm-arm/arch-pxa/ohci.h
@@ -0,0 +1,18 @@
+#ifndef ASMARM_ARCH_OHCI_H
+#define ASMARM_ARCH_OHCI_H
+
+struct device;
+
+struct pxaohci_platform_data {
+ int (*init)(struct device *);
+ void (*exit)(struct device *);
+
+ int port_mode;
+#define PMM_NPS_MODE 1
+#define PMM_GLOBAL_MODE 2
+#define PMM_PERPORT_MODE 3
+};
+
+extern void pxa_set_ohci_info(struct pxaohci_platform_data *info);
+
+#endif
generated by cgit v1.1 at 2024-11-01 00:32:19 +0000