From: Minkyu Kang <mk7.kang@samsung.com>
Date: Wed, 17 Jun 2009 07:26:58 +0000 (+0900)
Subject: [USB] add ramdisk boot mode
X-Git-Tag: s5pc110_universal_support~180
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=aad4c4ad4adfcff5bf5947ae54bef4d2b5752b01;p=kernel%2Fu-boot.git

[USB] add ramdisk boot mode

Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
---

diff --git a/common/cmd_usbd.c b/common/cmd_usbd.c
index e932b07..5db3dae 100644
--- a/common/cmd_usbd.c
+++ b/common/cmd_usbd.c
@@ -142,6 +142,12 @@ static void boot_cmd(char *addr)
 	do_bootm(NULL, 0, 2, argv);
 }
 
+static void run_cmd(char *cmd)
+{
+	char *argv[] = { "run", cmd };
+	do_run(NULL, 0, 2, argv);
+}
+
 #if defined(CONFIG_CMD_NAND)
 extern int do_nand(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
 #elif defined(CONFIG_CMD_ONENAND)
@@ -470,6 +476,18 @@ static int process_data(struct usbd_ops *usbd)
 		boot_cmd(ramaddr);
 		return 0;
 
+	case COMMAND_RAMDISK_MODE:
+		printf("COMMAND_RAMDISK_MODE\n");
+#ifdef CONFIG_RAMDISK_ADDR
+		if (arg) {
+			down_ram_addr = usbd->ram_addr;
+		} else {
+			down_ram_addr = CONFIG_RAMDISK_ADDR;
+			run_cmd("ramboot");
+		}
+#endif
+		return 1;
+
 #ifdef CONFIG_DOWN_PHONE
 	case COMMAND_DOWN_PHONE:
 		printf("COMMAND_RESET_PHONE\n");
diff --git a/include/configs/s5pc100_universal.h b/include/configs/s5pc100_universal.h
index 451a29f..95fdfd5 100644
--- a/include/configs/s5pc100_universal.h
+++ b/include/configs/s5pc100_universal.h
@@ -282,5 +282,6 @@
 #define CONFIG_SAMSUNG_USB
 #define CONFIG_OTG_CLK_OSCC
 #define CONFIG_SYS_DOWN_ADDR	CONFIG_SYS_SDRAM_BASE
+#define CONFIG_RAMDISK_ADDR	0x23000000
 
 #endif	/* __CONFIG_H */
diff --git a/include/usbd.h b/include/usbd.h
index 99b4bb7..87b6de9 100644
--- a/include/usbd.h
+++ b/include/usbd.h
@@ -45,6 +45,7 @@ enum {
 #define COMMAND_RESET_PDA	214
 #define COMMAND_RESET_USB	215
 #define COMMAND_RAM_BOOT	216
+#define COMMAND_RAMDISK_MODE	217
 #ifdef CONFIG_DOWN_PHONE
 #define COMMAND_DOWN_PHONE	220
 #define COMMAND_CHANGE_USB	221
@@ -52,16 +53,16 @@ enum {
 
 /*
  * USB Downloader Operations
- * usb_init		: initialize the USB Controller and check the connection
- * usb_stop		: stop and release USB
+ * usb_init	: initialize the USB Controller and check the connection
+ * usb_stop	: stop and release USB
  * send_data	: send the data (BULK ONLY!!)
  * recv_data	: receive the data and returns received size (BULK ONLY!!)
  * recv_setup	: setup download address, length and DMA setting for receive
- * tx_data		: send data address
- * rx_data		: receive data address
- * tx_len		: size of send data
- * rx_len		: size of receive data
- * ram_addr		: address of will be stored data on RAM
+ * tx_data	: send data address
+ * rx_data	: receive data address
+ * tx_len	: size of send data
+ * rx_len	: size of receive data
+ * ram_addr	: address of will be stored data on RAM
  */
 struct usbd_ops {
 	void (*usb_init) (void);