corvus, dfu: add dfu support

add support for DFU on the corvus board.
Signed-off-by: Heiko Schocher <hs@denx.de>

board/siemens/corvus/board.c

@@ -29,6 +29,10 @@
 #include <netdev.h>
 #include <spi.h>
 
+#ifdef CONFIG_USB_GADGET_ATMEL_USBA
+#include <asm/arch/atmel_usba_udc.h>
+#endif
+
 DECLARE_GLOBAL_DATA_PTR;
 
 static void corvus_nand_hw_init(void)
@@ -202,6 +206,19 @@ int board_early_init_f(void)
 	return 0;
 }
 
+#ifdef CONFIG_USB_GADGET_ATMEL_USBA
+/* from ./arch/arm/mach-at91/armv7/sama5d3_devices.c */
+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
+
 int board_init(void)
 {
 	/* address of boot parameters */
@@ -221,6 +238,10 @@ int board_init(void)
 #endif
 #ifdef CONFIG_CMD_USB
 	taurus_usb_hw_init();
+#endif
+#ifdef CONFIG_USB_GADGET_ATMEL_USBA
+	at91_udp_hw_init();
+	usba_udc_probe(&pdata);
 #endif
 	return 0;
 }

include/configs/corvus.h

@@ -114,7 +114,31 @@
 #define CONFIG_DOS_PARTITION
 #define CONFIG_USB_STORAGE
 
-#define CONFIG_SYS_LOAD_ADDR	ATMEL_BASE_CS6	/* load address */
+/* USB DFU support */
+#define CONFIG_CMD_MTDPARTS
+#define CONFIG_MTD_DEVICE
+#define CONFIG_MTD_PARTITIONS
+
+#define CONFIG_USB_GADGET
+#define CONFIG_USB_GADGET_DUALSPEED
+#define CONFIG_USB_GADGET_ATMEL_USBA
+
+/* DFU class support */
+#define CONFIG_CMD_DFU
+#define CONFIG_USB_FUNCTION_DFU
+#define CONFIG_DFU_NAND
+#define CONFIG_USB_GADGET_DOWNLOAD
+#define CONFIG_USB_GADGET_VBUS_DRAW	2
+#define CONFIG_SYS_DFU_DATA_BUF_SIZE	(SZ_1M)
+#define DFU_MANIFEST_POLL_TIMEOUT	25000
+
+/* USB DFU IDs */
+#define CONFIG_G_DNL_VENDOR_NUM 0x0908
+#define CONFIG_G_DNL_PRODUCT_NUM 0x02d2
+#define CONFIG_G_DNL_MANUFACTURER "Siemens AG"
+
+#define CONFIG_SYS_CACHELINE_SIZE	SZ_8K
+#define CONFIG_SYS_LOAD_ADDR	ATMEL_BASE_CS6
 
 /* bootstrap + u-boot + env in nandflash */
 #define CONFIG_ENV_IS_IN_NAND