Build debian with uart0

hi . I am work with rockpis more than one year . now i want build my own debian os with uart0 console . i read docs with link thats say for enable uart0 Add the following lines at the end of file rk3328-rock-pi-s.dts
&uart0 {
status = “okay”;

but when i add this line and build source code i have this eror “No serial driver found”

this out put uart0 when my image thats build run in rockpis

DDR Version V1.26
REGFB: 0x00000031, 0x00000031
Col=10 Bank=8 Row=15 Size=512MB
Returning to boot ROM…
INFO: Preloader serial: 0
NOTICE: BL31: v1.3(release):3a579d3
NOTICE: BL31: Built : 09:09:17, Jan 29 2019
INFO: Lastlog: last=0x100000, realtime=0x102000, size=0x2000
INFO: ARM GICv2 driver initialized
INFO: Using opteed sec cpu_context!
INFO: boot cpu mask: 1
INFO: plat_rockchip_pmu_init: pd status 0xe b
INFO: BL31: Initializing runtime services
WARNING: No OPTEE provided by BL2 boot loader, Booting device without OPTEE initialization. SMC`s destined for OPTEE will return SMC_UNK
ERROR: Error initializing runtime service opteed_fast
INFO: BL31: Preparing for EL3 exit to normal world
INFO: Entry point address = 0x600000
INFO: SPSR = 0x3c9
No serial driver found
WARN: PSCI sysreset is disabled

are you can help e for this??? . thanks a lot