carl9170 firmware: cleanup dma memory before reset

[carl9170fw.git] / carlfw / usb / main.c

diff --git a/carlfw/usb/main.c b/carlfw/usb/main.c
index 57f75a44162f93635161182b7a8cc5013f3d1fdd..6545ec0931180e709936c264afb8394d4ed52a14 100644 (file)
--- a/carlfw/usb/main.c
+++ b/carlfw/usb/main.c
@@ -272,16 +272,21 @@ static void turn_power_off(void)
 
 void __noreturn reboot(void)
 {
+       set(AR9170_MAC_REG_DMA_TRIGGER, 0);
+
        /* write watchdog magic pattern for suspend  */
        andl(AR9170_PWR_REG_WATCH_DOG_MAGIC, 0xffff);
        orl(AR9170_PWR_REG_WATCH_DOG_MAGIC, 0x98760000);
 
        /* Disable watchdog */
-       orl(AR9170_TIMER_REG_WATCH_DOG, 0xffff);
+       set(AR9170_TIMER_REG_WATCH_DOG, 0xffff);
 
        /* Turn off power */
        turn_power_off();
 
+       /* clean bootloader workspace */
+       memset(&dma_mem, 0, sizeof(dma_mem));
+
        /* add by ygwei for work around USB PHY chirp sequence problem */
        set(0x10f100, 0x12345678);