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authorFrank Wang <frank.wang@rock-chips.com>2020-05-26 06:34:30 +0300
committerKever Yang <kever.yang@rock-chips.com>2020-05-29 13:13:19 +0300
commit646979425a9bbf23990b72098c9f70e45743f46a (patch)
tree2e891d4864a293a62baa37741998748edfc9c2bc /drivers/usb/common
parentfafaa02290715a02ae97b26fa6937d6a27cdc296 (diff)
downloadu-boot-646979425a9bbf23990b72098c9f70e45743f46a.tar.xz
usb: dwc3: amend UTMI/UTMIW phy interface setup
Let move 8/16-bit UTMI+ interface initialization into DWC3 core init that is convenient for both DM_USB and u-boot traditional process. Signed-off-by: Frank Wang <frank.wang@rock-chips.com> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Diffstat (limited to 'drivers/usb/common')
-rw-r--r--drivers/usb/common/common.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/usb/common/common.c b/drivers/usb/common/common.c
index 0db281b970..d4ae18693c 100644
--- a/drivers/usb/common/common.c
+++ b/drivers/usb/common/common.c
@@ -10,6 +10,7 @@
#include <dm.h>
#include <linux/usb/otg.h>
#include <linux/usb/ch9.h>
+#include <linux/usb/phy.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -64,3 +65,27 @@ enum usb_device_speed usb_get_maximum_speed(ofnode node)
return USB_SPEED_UNKNOWN;
}
+
+#if CONFIG_IS_ENABLED(DM_USB)
+static const char *const usbphy_modes[] = {
+ [USBPHY_INTERFACE_MODE_UNKNOWN] = "",
+ [USBPHY_INTERFACE_MODE_UTMI] = "utmi",
+ [USBPHY_INTERFACE_MODE_UTMIW] = "utmi_wide",
+};
+
+enum usb_phy_interface usb_get_phy_mode(ofnode node)
+{
+ const char *phy_type;
+ int i;
+
+ phy_type = ofnode_get_property(node, "phy_type", NULL);
+ if (!phy_type)
+ return USBPHY_INTERFACE_MODE_UNKNOWN;
+
+ for (i = 0; i < ARRAY_SIZE(usbphy_modes); i++)
+ if (!strcmp(phy_type, usbphy_modes[i]))
+ return i;
+
+ return USBPHY_INTERFACE_MODE_UNKNOWN;
+}
+#endif