lupyuen2 · lupyuen · Mar 6, 2023 · Mar 6, 2023 · Mar 6, 2023 · Mar 6, 2023
diff --git a/.gitmodules b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "arch/arm64/src/a64/pinephone-nuttx-usb"]
+	path = arch/arm64/src/a64/pinephone-nuttx-usb
+	url = https://github.com/lupyuen/pinephone-nuttx-usb
diff --git a/arch/arm64/src/a64/Kconfig b/arch/arm64/src/a64/Kconfig
@@ -65,6 +65,15 @@ config A64_TWI2
 	---help---
 		Select to enable support for TWI2.
 
+# TODO: Rename OTG
+config A64_USBOTG
+	bool "USB EHCI"
+	default n
+	select USBHOST_HAVE_ASYNCH if USBHOST
+	select USBHOST_ASYNCH
+	---help---
+		Select to enable support for USB EHCI.
+
 endmenu # Allwinner A64 Peripheral Selection
 
 endif # ARCH_CHIP_A64
diff --git a/arch/arm64/src/a64/Make.defs b/arch/arm64/src/a64/Make.defs
@@ -40,3 +40,6 @@ CHIP_CSRCS += a64_tcon0.c
 endif
 
 CHIP_ASRCS  = a64_lowputc.S
+
+# TODO: USB Source Files
+CHIP_CSRCS += a64_ehci.c a64_usbhost.c
diff --git a/arch/arm64/src/a64/a64_ehci.c b/arch/arm64/src/a64/a64_ehci.c
@@ -0,0 +1 @@
+pinephone-nuttx-usb/a64_ehci.c
diff --git a/arch/arm64/src/a64/a64_ehci.h b/arch/arm64/src/a64/a64_ehci.h
@@ -0,0 +1 @@
+pinephone-nuttx-usb/a64_ehci.h
diff --git a/arch/arm64/src/a64/a64_pio.c b/arch/arm64/src/a64/a64_pio.c
@@ -253,6 +253,7 @@ int a64_pio_config(pio_pinset_t cfgset)
   value = (cfgset & PIO_MODE_MASK) >> PIO_MODE_SHIFT;
   shift = (pin & 7) << 2;
 
+  _info("port=%d, pin=%d, ext=%d, cfgaddr=0x%x, value=%d, shift=%d\n", port, pin, ext, cfgaddr, value, shift);////
   regval = getreg32(cfgaddr);
   regval &= ~(7 << shift);
   regval |= (value << shift);