[U-Boot] [PATCH v2] musb: sunxi: Use base address from device tree

[Chen-Yu Tsai]

Now that the musb sunxi glue driver is completely device model / device
tree driven, we should use the base address from the device tree,
instead of hard-coding it in the source code.

Fixes: 3a61b080acee ("musb: sunxi: switch to the device model")
Signed-off-by: Chen-Yu Tsai <wens at csie.org>
---
Changes since v1:

  - Check return value dev_read_addr_ptr()

IMHO, having NULL represent an error for dev_read_addr_ptr() doesn't
work so well as in the kernel, because U-boot doesn't acually map
addresses. So NULL (or 0x0) is in fact a valid address. Something
like ~0x0 might work better, but that's a whole other changeset.

---
 drivers/usb/musb-new/sunxi.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/musb-new/sunxi.c b/drivers/usb/musb-new/sunxi.c
index 7ee44ea91900..aedc24b93711 100644
--- a/drivers/usb/musb-new/sunxi.c
+++ b/drivers/usb/musb-new/sunxi.c
@@ -312,13 +312,16 @@ static int musb_usb_probe(struct udevice *dev)
 {
 	struct musb_host_data *host = dev_get_priv(dev);
 	struct usb_bus_priv *priv = dev_get_uclass_priv(dev);
+	void *base = dev_read_addr_ptr(dev);
 	int ret;
 
+	if (!base)
+		return -EINVAL;
+
 	priv->desc_before_addr = true;
 
 #ifdef CONFIG_USB_MUSB_HOST
-	host->host = musb_init_controller(&musb_plat, NULL,
-					  (void *)SUNXI_USB0_BASE);
+	host->host = musb_init_controller(&musb_plat, NULL, base);
 	if (!host->host)
 		return -EIO;
 
@@ -326,7 +329,7 @@ static int musb_usb_probe(struct udevice *dev)
 	if (!ret)
 		printf("Allwinner mUSB OTG (Host)\n");
 #else
-	ret = musb_register(&musb_plat, NULL, (void *)SUNXI_USB0_BASE);
+	ret = musb_register(&musb_plat, NULL, base);
 	if (!ret)
 		printf("Allwinner mUSB OTG (Peripheral)\n");
 #endif
-- 
2.15.1