MIPS: ath79: add AR933X specific USB platform device registration

Also select the USB_ARCH_HAS_EHCI symbol in order to make the
EHCI driver available.

Signed-off-by: Gabor Juhos <[e-mail]>
Cc: [e-mail]
Cc: Kathy Giori <[e-mail]>
Cc: "Luis R. Rodriguez" <[e-mail]>
Patchwork: https://patchwork.linux-mips.org/patch/2527/
Signed-off-by: Ralf Baechle <[e-mail]>

arch/mips/ath79/Kconfig

···
 	def_bool n
 
 config SOC_AR933X
+	select USB_ARCH_HAS_EHCI
 	def_bool n
 
 config ATH79_DEV_AR913X_WMAC

arch/mips/ath79/dev-usb.c

···
 	platform_device_register(&ath79_ehci_device);
 }
 
+static void __init ar933x_usb_setup(void)
+{
+	ath79_device_reset_set(AR933X_RESET_USBSUS_OVERRIDE);
+	mdelay(10);
+
+	ath79_device_reset_clear(AR933X_RESET_USB_HOST);
+	mdelay(10);
+
+	ath79_device_reset_clear(AR933X_RESET_USB_PHY);
+	mdelay(10);
+
+	ath79_ehci_resources[0].start = AR933X_EHCI_BASE;
+	ath79_ehci_resources[0].end = AR933X_EHCI_BASE + AR933X_EHCI_SIZE - 1;
+	ath79_ehci_device.name = "ar933x-ehci";
+	platform_device_register(&ath79_ehci_device);
+}
+
 void __init ath79_register_usb(void)
 {
 	if (soc_is_ar71xx())
···
 		ar724x_usb_setup();
 	else if (soc_is_ar913x())
 		ar913x_usb_setup();
+	else if (soc_is_ar933x())
+		ar933x_usb_setup();
 	else
 		BUG();
 }

arch/mips/include/asm/mach-ath79/ar71xx_regs.h

···
 #define AR933X_UART_BASE	(AR71XX_APB_BASE + 0x00020000)
 #define AR933X_UART_SIZE	0x14
 
+#define AR933X_EHCI_BASE	0x1b000000
+#define AR933X_EHCI_SIZE	0x1000
+
 /*
  * DDR_CTRL block
  */
···
 #define AR913X_RESET_USBSUS_OVERRIDE	BIT(10)
 #define AR913X_RESET_USB_HOST		BIT(5)
 #define AR913X_RESET_USB_PHY		BIT(4)
+
+#define AR933X_RESET_USB_HOST		BIT(5)
+#define AR933X_RESET_USB_PHY		BIT(4)
+#define AR933X_RESET_USBSUS_OVERRIDE	BIT(3)
 
 #define AR933X_BOOTSTRAP_REF_CLK_40	BIT(0)