Amlogic Meson GXL and AXG SoCs come with a (host-only) dwc3 USB
controller. To use this controller a clock has to be enabled and a reset
line has to be pulsed.
Enabling the clock works identical to other SoCs. However, the reset
line has to be pulsed (using reset_control_reset) instead of using a
level reset (reset_control_{assert,deassert}).
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx>
---
drivers/usb/dwc3/dwc3-of-simple.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/drivers/usb/dwc3/dwc3-of-simple.c b/drivers/usb/dwc3/dwc3-of-simple.c
index ceb9f0cd822a..d9e4b8b09eaf 100644
--- a/drivers/usb/dwc3/dwc3-of-simple.c
+++ b/drivers/usb/dwc3/dwc3-of-simple.c
@@ -217,6 +217,11 @@ static const struct dwc3_of_simple_params dwc3_of_simple_default_params = {
.pulse_resets = false,
};
+static const struct dwc3_of_simple_params dwc3_of_simple_amlogic_params = {
+ .shared_resets = true,
+ .pulse_resets = true,
+};
+
static const struct of_device_id of_dwc3_simple_match[] = {
{
.compatible = "qcom,dwc3",
@@ -238,6 +243,14 @@ static const struct of_device_id of_dwc3_simple_match[] = {
.compatible = "sprd,sc9860-dwc3",
.data = &dwc3_of_simple_default_params
},
+ {
+ .compatible = "amlogic,meson-axg-dwc3",
+ .data = &dwc3_of_simple_amlogic_params
+ },
+ {
+ .compatible = "amlogic,meson-gxl-dwc3",
+ .data = &dwc3_of_simple_amlogic_params
+ },
{ /* Sentinel */ }
};
MODULE_DEVICE_TABLE(of, of_dwc3_simple_match);
--
2.16.1
--
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