usbd: use contant instead of variable

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

diff --git a/cpu/arm_cortexa8/s5pc1xx/usb_downloader.c b/cpu/arm_cortexa8/s5pc1xx/usb_downloader.c
index 69536cf..62bd04a 100644 (file)
--- a/cpu/arm_cortexa8/s5pc1xx/usb_downloader.c
+++ b/cpu/arm_cortexa8/s5pc1xx/usb_downloader.c
@@ -26,11 +26,11 @@
 #include <fbutils.h>
 #endif
 
-static char tx_data[8] = "MPL";
-static long tx_len = 4;
+#define TX_DATA_LEN    4
+#define RX_DATA_LEN    64
 
-static char rx_data[64];
-static long rx_len = 64;
+static char tx_data[TX_DATA_LEN] = "MPL";
+static char rx_data[RX_DATA_LEN];
 
 extern int s5p_receive_done;
 extern int s5p_usb_connected;
@@ -183,8 +183,8 @@ struct usbd_ops *usbd_set_interface(struct usbd_ops *usbd)
        usbd->recv_setup = recv_setup;
        usbd->tx_data = tx_data;
        usbd->rx_data = rx_data;
-       usbd->tx_len = tx_len;
-       usbd->rx_len = rx_len;
+       usbd->tx_len = TX_DATA_LEN;
+       usbd->rx_len = RX_DATA_LEN;
        usbd->ram_addr = CONFIG_SYS_DOWN_ADDR;
 #ifdef CONFIG_S5PC1XXFB
        if (!s5p_no_lcd_support())