ARM: atmel: add RNDIS gadget support

Add RNDIS gadget support to test atmel usba udc driver

Signed-off-by: Bo Shen <voice.shen@atmel.com>

arch/arm/cpu/armv7/at91/sama5d3_devices.c

@@ -202,3 +202,15 @@ void at91_lcd_hw_init(void)
 	at91_periph_clk_enable(ATMEL_ID_LCDC);
 }
 #endif
+
+#ifdef CONFIG_USB_GADGET_ATMEL_USBA
+void at91_udp_hw_init(void)
+{
+	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
+
+	/* Enable UPLL clock */
+	writel(AT91_PMC_UPLLEN | AT91_PMC_BIASEN, &pmc->uckr);
+	/* Enable UDPHS clock */
+	at91_periph_clk_enable(ATMEL_ID_UDPHS);
+}
+#endif

arch/arm/include/asm/arch-at91/at91_common.h

@@ -19,6 +19,7 @@ void at91_serial2_hw_init(void);
 void at91_seriald_hw_init(void);
 void at91_spi0_hw_init(unsigned long cs_mask);
 void at91_spi1_hw_init(unsigned long cs_mask);
+void at91_udp_hw_init(void);
 void at91_uhp_hw_init(void);
 void at91_lcd_hw_init(void);
 

board/atmel/sama5d3xek/sama5d3xek.c

@@ -21,6 +21,10 @@
 #include <net.h>
 #include <netdev.h>
 
+#ifdef CONFIG_USB_GADGET_ATMEL_USBA
+#include <asm/arch/atmel_usba_udc.h>
+#endif
+
 DECLARE_GLOBAL_DATA_PTR;
 
 /* ------------------------------------------------------------------------- */
@@ -170,6 +174,9 @@ int board_init(void)
 #ifdef CONFIG_CMD_USB
 	sama5d3xek_usb_hw_init();
 #endif
+#ifdef CONFIG_USB_GADGET_ATMEL_USBA
+	at91_udp_hw_init();
+#endif
 #ifdef CONFIG_GENERIC_ATMEL_MCI
 	sama5d3xek_mci_hw_init();
 #endif
@@ -220,6 +227,12 @@ int board_eth_init(bd_t *bis)
 		rc = macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC, 0x00);
 	if (has_gmac())
 		rc = macb_eth_initialize(0, (void *)ATMEL_BASE_GMAC, 0x00);
+#endif
+#ifdef CONFIG_USB_GADGET_ATMEL_USBA
+	usba_udc_probe(&pdata);
+#ifdef CONFIG_USB_ETH_RNDIS
+	usb_eth_initialize(bis);
+#endif
 #endif
 
 	return rc;

include/configs/sama5d3xek.h

@@ -162,6 +162,14 @@
 #define CONFIG_USB_STORAGE
 #endif
 
+/* USB device */
+#define CONFIG_USB_GADGET
+#define CONFIG_USB_GADGET_DUALSPEED
+#define CONFIG_USB_GADGET_ATMEL_USBA
+#define CONFIG_USB_ETHER
+#define CONFIG_USB_ETH_RNDIS
+#define CONFIG_USBNET_MANUFACTURER      "Atmel SAMA5D3xEK"
+
 #if defined(CONFIG_CMD_USB) || defined(CONFIG_CMD_MMC)
 #define CONFIG_CMD_FAT
 #endif