diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c
index 31a2aa34b0f0276dcd5b9db4998b35441f8fdb1e..30d72101541d676b23f189ccc7f7bd1bfbc74c9e 100644
--- a/drivers/usb/dwc3/dwc3-omap.c
+++ b/drivers/usb/dwc3/dwc3-omap.c
@@ -17,6 +17,7 @@
#include <common.h>
#include <malloc.h>
#include <asm/io.h>
+#include <dwc3-omap-uboot.h>
#include <linux/usb/dwc3-omap.h>
#include <linux/ioport.h>
@@ -120,6 +121,8 @@ struct dwc3_omap {
u32 dma_status:1;
};
+struct dwc3_omap *omap;
+
static inline u32 dwc3_omap_readl(void __iomem *base, u32 offset)
{
return readl(base + offset);
@@ -278,15 +281,6 @@ static irqreturn_t dwc3_omap_interrupt(int irq, void *_omap)
return IRQ_HANDLED;
}
-static int dwc3_omap_remove_core(struct device *dev, void *c)
-{
- struct platform_device *pdev = to_platform_device(dev);
-
- of_device_unregister(pdev);
-
- return 0;
-}
-
static void dwc3_omap_enable_irqs(struct dwc3_omap *omap)
{
u32 reg;
@@ -315,12 +309,8 @@ static void dwc3_omap_disable_irqs(struct dwc3_omap *omap)
dwc3_omap_write_irq0_set(omap, 0x00);
}
-static u64 dwc3_omap_dma_mask = DMA_BIT_MASK(32);
-
static void dwc3_omap_map_offset(struct dwc3_omap *omap)
{
- struct device_node *node = omap->dev->of_node;
-
/*
* Differentiate between OMAP5 and AM437x.
*
@@ -329,25 +319,21 @@ static void dwc3_omap_map_offset(struct dwc3_omap *omap)
*
* Using dt compatible to differentiate AM437x.
*/
- if (of_device_is_compatible(node, "ti,am437x-dwc3")) {
- omap->irq_eoi_offset = USBOTGSS_EOI_OFFSET;
- omap->irq0_offset = USBOTGSS_IRQ0_OFFSET;
- omap->irqmisc_offset = USBOTGSS_IRQMISC_OFFSET;
- omap->utmi_otg_offset = USBOTGSS_UTMI_OTG_OFFSET;
- omap->debug_offset = USBOTGSS_DEBUG_OFFSET;
- }
+#ifdef CONFIG_AM43XX
+ omap->irq_eoi_offset = USBOTGSS_EOI_OFFSET;
+ omap->irq0_offset = USBOTGSS_IRQ0_OFFSET;
+ omap->irqmisc_offset = USBOTGSS_IRQMISC_OFFSET;
+ omap->utmi_otg_offset = USBOTGSS_UTMI_OTG_OFFSET;
+ omap->debug_offset = USBOTGSS_DEBUG_OFFSET;
+#endif
}
-static void dwc3_omap_set_utmi_mode(struct dwc3_omap *omap)
+static void dwc3_omap_set_utmi_mode(struct dwc3_omap *omap, int utmi_mode)
{
u32 reg;
- struct device_node *node = omap->dev->of_node;
- int utmi_mode = 0;
reg = dwc3_omap_read_utmi_status(omap);
- of_property_read_u32(node, "utmi-mode", &utmi_mode);
-
switch (utmi_mode) {
case DWC3_OMAP_UTMI_MODE_SW:
reg |= USBOTGSS_UTMI_OTG_STATUS_SW_MODE;
@@ -362,95 +348,59 @@ static void dwc3_omap_set_utmi_mode(struct dwc3_omap *omap)
dwc3_omap_write_utmi_status(omap, reg);
}
-static int dwc3_omap_probe(struct platform_device *pdev)
+/**
+ * dwc3_omap_uboot_init - dwc3 omap uboot initialization code
+ * @dev: struct dwc3_omap_device containing initialization data
+ *
+ * Entry point for dwc3 omap driver (equivalent to dwc3_omap_probe in linux
+ * kernel driver). Pointer to dwc3_omap_device should be passed containing
+ * base address and other initialization data. Returns '0' on success and
+ * a negative value on failure.
+ *
+ * Generally called from board_usb_init() implemented in board file.
+ */
+int dwc3_omap_uboot_init(struct dwc3_omap_device *omap_dev)
{
- struct device_node *node = pdev->dev.of_node;
-
- struct dwc3_omap *omap;
- struct resource *res;
- struct device *dev = &pdev->dev;
-
- int ret;
u32 reg;
-
- void __iomem *base;
-
- if (!node) {
- dev_err(dev, "device node not found\n");
- return -EINVAL;
- }
+ struct device *dev;
omap = devm_kzalloc(dev, sizeof(*omap), GFP_KERNEL);
if (!omap)
return -ENOMEM;
- platform_set_drvdata(pdev, omap);
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- base = devm_ioremap_resource(dev, res);
- if (IS_ERR(base))
- return PTR_ERR(base);
-
- omap->dev = dev;
- omap->base = base;
- dev->dma_mask = &dwc3_omap_dma_mask;
+ omap->base = omap_dev->base;
dwc3_omap_map_offset(omap);
- dwc3_omap_set_utmi_mode(omap);
+ dwc3_omap_set_utmi_mode(omap, omap_dev->utmi_mode);
/* check the DMA Status */
reg = dwc3_omap_readl(omap->base, USBOTGSS_SYSCONFIG);
omap->dma_status = !!(reg & USBOTGSS_SYSCONFIG_DMADISABLE);
- dwc3_omap_enable_irqs(omap);
+ dwc3_omap_set_mailbox(omap, omap_dev->vbus_id_status);
- ret = of_platform_populate(node, NULL, NULL, dev);
- if (ret) {
- dev_err(&pdev->dev, "failed to create dwc3 core\n");
- goto err1;
- }
+ dwc3_omap_enable_irqs(omap);
return 0;
-
-err1:
- dwc3_omap_disable_irqs(omap);
-
-err0:
- return ret;
}
-static int dwc3_omap_remove(struct platform_device *pdev)
+/**
+ * dwc3_omap_uboot_exit - dwc3 omap uboot cleanup code
+ * @index: index of this controller
+ *
+ * Performs cleanup of memory allocated in dwc3_omap_uboot_init
+ * (equivalent to dwc3_omap_remove in linux).
+ *
+ * Generally called from board file.
+ */
+void dwc3_omap_uboot_exit(void)
{
- struct dwc3_omap *omap = platform_get_drvdata(pdev);
-
dwc3_omap_disable_irqs(omap);
- device_for_each_child(&pdev->dev, NULL, dwc3_omap_remove_core);
+ kfree(omap);
return 0;
}
-static const struct of_device_id of_dwc3_match[] = {
- {
- .compatible = "ti,dwc3"
- },
- {
- .compatible = "ti,am437x-dwc3"
- },
- { },
-};
-MODULE_DEVICE_TABLE(of, of_dwc3_match);
-
-static struct platform_driver dwc3_omap_driver = {
- .probe = dwc3_omap_probe,
- .remove = dwc3_omap_remove,
- .driver = {
- .name = "omap-dwc3",
- .of_match_table = of_dwc3_match,
- },
-};
-
-module_platform_driver(dwc3_omap_driver);
-
MODULE_ALIAS("platform:omap-dwc3");
MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");
MODULE_LICENSE("GPL v2");
diff --git a/include/dwc3-omap-uboot.h b/include/dwc3-omap-uboot.h
index b313b644392cac160339761e7c5102fd72b04554..99f8f38f22cbb318c5e898641e63d2e5d5589c01 100644
--- a/include/dwc3-omap-uboot.h
+++ b/include/dwc3-omap-uboot.h
@@ -24,4 +24,7 @@ struct dwc3_omap_device {
enum dwc3_omap_utmi_mode utmi_mode;
enum omap_dwc3_vbus_id_status vbus_id_status;
};
+
+int dwc3_omap_uboot_init(struct dwc3_omap_device *dev);
+void dwc3_omap_uboot_exit(void);
#endif /* __DWC3_OMAP_UBOOT_H_ */