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dwc3: dwc3-omap: add support for multiple dwc3-omap controllers

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Added support for multiple dwc3 omap controllers. This gives uboot
the capability to control multiple dwc3 omap controllers.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
This commit is contained in:
Kishon Vijay Abraham I 2015-02-23 18:40:10 +05:30 committed by Marek Vasut
parent c241d7eee4
commit 57207657a1
2 changed files with 22 additions and 7 deletions
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26
drivers/usb/dwc3/dwc3-omap.c
View file

@ -119,9 +119,11 @@ struct dwc3_omap {
u32 irq0_offset;
u32 dma_status:1;
struct list_head list;
u32 index;
};
struct dwc3_omap *omap;
static LIST_HEAD(dwc3_omap_list);
static inline u32 dwc3_omap_readl(void __iomem *base, u32 offset)
{
@ -363,12 +365,14 @@ int dwc3_omap_uboot_init(struct dwc3_omap_device *omap_dev)
{
u32 reg;
struct device *dev;
struct dwc3_omap *omap;
omap = devm_kzalloc(dev, sizeof(*omap), GFP_KERNEL);
if (!omap)
return -ENOMEM;
omap->base = omap_dev->base;
omap->index = omap_dev->index;
dwc3_omap_map_offset(omap);
dwc3_omap_set_utmi_mode(omap, omap_dev->utmi_mode);
@ -380,6 +384,7 @@ int dwc3_omap_uboot_init(struct dwc3_omap_device *omap_dev)
dwc3_omap_set_mailbox(omap, omap_dev->vbus_id_status);
dwc3_omap_enable_irqs(omap);
list_add_tail(&omap->list, &dwc3_omap_list);
return 0;
}
@ -389,16 +394,25 @@ int dwc3_omap_uboot_init(struct dwc3_omap_device *omap_dev)
* @index: index of this controller
*
* Performs cleanup of memory allocated in dwc3_omap_uboot_init
* (equivalent to dwc3_omap_remove in linux).
* (equivalent to dwc3_omap_remove in linux). index of _this_ controller
* should be passed and should match with the index passed in
* dwc3_omap_device during init.
*
* Generally called from board file.
*/
void dwc3_omap_uboot_exit(void)
void dwc3_omap_uboot_exit(int index)
{
dwc3_omap_disable_irqs(omap);
kfree(omap);
struct dwc3_omap *omap = NULL;
return 0;
list_for_each_entry(omap, &dwc3_omap_list, list) {
if (omap->index != index)
continue;
dwc3_omap_disable_irqs(omap);
list_del(&omap->list);
kfree(omap);
break;
}
}
MODULE_ALIAS("platform:omap-dwc3");

3
include/dwc3-omap-uboot.h
View file

@ -21,10 +21,11 @@ enum omap_dwc3_vbus_id_status {
struct dwc3_omap_device {
void *base;
int index;
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);
void dwc3_omap_uboot_exit(int index);
#endif /* __DWC3_OMAP_UBOOT_H_ */