usb: dwc2: invalidate the dcache before starting the DMA

[u-boot] / drivers / usb / host / ehci-generic.c

diff --git a/drivers/usb/host/ehci-generic.c b/drivers/usb/host/ehci-generic.c
index 4444988e36fcace0566c8d99529cabf6b4969f1c..2190adba6777d849525efdf165ffed882cfd001a 100644 (file)
--- a/drivers/usb/host/ehci-generic.c
+++ b/drivers/usb/host/ehci-generic.c
@@ -6,6 +6,7 @@
 
 #include <common.h>
 #include <clk.h>
+#include <reset.h>
 #include <asm/io.h>
 #include <dm.h>
 #include "ehci.h"
@@ -26,15 +27,27 @@ static int ehci_usb_probe(struct udevice *dev)
        int i;
 
        for (i = 0; ; i++) {
-               struct udevice *clk_dev;
-               int clk_id;
+               struct clk clk;
+               int ret;
 
-               clk_id = clk_get_by_index(dev, i, &clk_dev);
-               if (clk_id < 0)
+               ret = clk_get_by_index(dev, i, &clk);
+               if (ret < 0)
                        break;
-               if (clk_enable(clk_dev, clk_id))
-                       printf("failed to enable clock (dev=%s, id=%d)\n",
-                              clk_dev->name, clk_id);
+               if (clk_enable(&clk))
+                       printf("failed to enable clock %d\n", i);
+               clk_free(&clk);
+       }
+
+       for (i = 0; ; i++) {
+               struct reset_ctl reset;
+               int ret;
+
+               ret = reset_get_by_index(dev, i, &reset);
+               if (ret < 0)
+                       break;
+               if (reset_deassert(&reset))
+                       printf("failed to deassert reset %d\n", i);
+               reset_free(&reset);
        }
 
        hccr = map_physmem(dev_get_addr(dev), 0x100, MAP_NOCACHE);
@@ -44,11 +57,6 @@ static int ehci_usb_probe(struct udevice *dev)
        return ehci_register(dev, hccr, hcor, NULL, 0, USB_INIT_HOST);
 }
 
-static int ehci_usb_remove(struct udevice *dev)
-{
-       return ehci_deregister(dev);
-}
-
 static const struct udevice_id ehci_usb_ids[] = {
        { .compatible = "generic-ehci" },
        { }
@@ -59,7 +67,7 @@ U_BOOT_DRIVER(ehci_generic) = {
        .id     = UCLASS_USB,
        .of_match = ehci_usb_ids,
        .probe = ehci_usb_probe,
-       .remove = ehci_usb_remove,
+       .remove = ehci_deregister,
        .ops    = &ehci_usb_ops,
        .priv_auto_alloc_size = sizeof(struct generic_ehci),
        .flags  = DM_FLAG_ALLOC_PRIV_DMA,