Coreboot already initializes the USB3 controller and PHY on Qualcomm
devices. Skip fixing up the USB node on platforms that are a coreboot
payload. This provides a working USB-A port on device like Lazor.
Signed-off-by: Stephen Boyd <swb...@chromium.org>
---
arch/arm/mach-snapdragon/of_fixup.c | 22 +++++++++++++++-------
1 file changed, 15 insertions(+), 7 deletions(-)
diff --git a/arch/arm/mach-snapdragon/of_fixup.c
b/arch/arm/mach-snapdragon/of_fixup.c
index 1ea0c18c2f27..fd4aa3ba7055 100644
--- a/arch/arm/mach-snapdragon/of_fixup.c
+++ b/arch/arm/mach-snapdragon/of_fixup.c
@@ -41,13 +41,6 @@ static int fixup_qcom_dwc3(struct device_node *glue_np)
debug("Fixing up %s\n", glue_np->name);
- /* Tell the glue driver to configure the wrapper for high-speed only
operation */
- ret = of_write_prop(glue_np, "qcom,select-utmi-as-pipe-clk", 0, NULL);
- if (ret) {
- log_err("Failed to add property 'qcom,select-utmi-as-pipe-clk':
%d\n", ret);
- return ret;
- }
-
/* Find the DWC3 node itself */
dwc3 = of_find_compatible_node(glue_np, NULL, "snps,dwc3");
if (!dwc3) {
@@ -92,6 +85,21 @@ static int fixup_qcom_dwc3(struct device_node *glue_np)
return ret;
}
+ /*
+ * Coreboot already initialized USB to the point that USB SuperSpeed
+ * works, don't tell the glue driver to only use high-speed.
+ */
+ if (gd->arch.coreboot_table)
+ return 0;
+
+ /* Tell the glue driver to configure the wrapper for high-speed only
operation */
+ ret = of_write_prop(glue_np, "qcom,select-utmi-as-pipe-clk", 0, NULL);
+ if (ret) {
+ log_err("Failed to add property 'qcom,select-utmi-as-pipe-clk':
%d\n", ret);
+ return ret;
+ }
+
+ /* Tell the core driver to configure for high-speed only operation */
ret = of_write_prop(dwc3, "maximum-speed", strlen("high-speed") + 1,
"high-speed");
if (ret) {
log_err("Failed to set 'maximum-speed' property: %d\n", ret);
--
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