[U-Boot-Users] a problem when run u-boot on mips 4kec

[zhuzhenhua]

i am porting u-boot on our soc(mips 4KEC core),and the u-boot run into
the function board_init_f() and get some problem..
just for debug, i move the env_init after serial_init, so the init  sequence in
board_init_f() will be timer_init,serial_init,env_init,...
and if i get rid of t he two line "	__asm__ __volatile__("": : :"memory");
	memset ((void *)gd, 0, sizeof (gd_t));",

the serial_init() run correctly, and puts the string on UART,but if i
recove these two lines, if will get nothing on UART.

i use the eldk as cross-compile, set CROSS_COMPILE = mips_4KCle-

can someone give me some hints?

thanks!