env

#kernel command arguments
earlyprintk=sunxi-uart,0x02500C00
initcall_debug=0
console=ttyS3,115200
nand_root=/dev/ubiblock0_5
mmc_root=/dev/mmcblk0p5
mtd_name=sys
rootfstype=squashfs
root_partition=rootfs
boot_partition=boot
init=/sbin/init
loglevel=8
cma=8M
mac=
wifi_mac=
bt_mac=
specialstr=
keybox_list=widevine,ec_key,ec_cert1,ec_cert2,ec_cert3,rsa_key,rsa_cert1,rsa_cert2,rsa_cert3
dsp0_partition=dsp0
rootdelay=2
#set kernel cmdline if boot.img or recovery.img has no cmdline we will use this
setargs_nand=setenv bootargs ubi.mtd=${mtd_name} ubi.block=0,${root_partition} earlyprintk=${earlyprintk} clk_ignore_unused initcall_debug=${initcall_debug} console=${console} loglevel=${loglevel} root=${nand_root} rootfstype=${rootfstype} init=${init} partitions=${partitions} cma=${cma} snum=${snum} mac_addr=${mac} wifi_mac=${wifi_mac} bt_mac=${bt_mac} specialstr=${specialstr} gpt=1
setargs_nand_ubi=setenv bootargs ubi.mtd=${mtd_name} ubi.block=0,${root_partition} earlyprintk=${earlyprintk} clk_ignore_unused initcall_debug=${initcall_debug} console=${console} loglevel=${loglevel} root=${nand_root} rootfstype=${rootfstype} init=${init} partitions=${partitions} cma=${cma} snum=${snum} mac_addr=${mac} wifi_mac=${wifi_mac} bt_mac=${bt_mac} specialstr=${specialstr} gpt=1
setargs_mmc=setenv  bootargs earlyprintk=${earlyprintk} clk_ignore_unused initcall_debug=${initcall_debug} console=${console} loglevel=${loglevel} root=${mmc_root}  init=${init} partitions=${partitions} cma=${cma} snum=${snum} mac_addr=${mac} wifi_mac=${wifi_mac} bt_mac=${bt_mac} specialstr=${specialstr} gpt=1
#nand command syntax: sunxi_flash read address partition_name read_bytes
#0x4007f800 = 0x40080000(kernel entry) - 0x800(boot.img header 2k)
#boot_dsp0=sunxi_flash read 45000000 ${dsp0_partition};bootr 45000000 0 0
#boot_normal=sunxi_flash read 45000000 ${boot_partition};bootm 45000000
boot_dsp0=sunxi_flash read 40000000 ${dsp0_partition};bootr 40000000 0 0
boot_normal=sunxi_flash read 41000000 ${boot_partition};bootm 41000000
boot_recovery=sunxi_flash read 43000000 recovery;bootm 43000000
boot_fastboot=fastboot

#uboot system env config
bootdelay=1
#default bootcmd, will change at runtime according to key press
#default nand boot
bootcmd=run setargs_mmc boot_normal

sys_config

;----------------------------------------------------------------------------------
;storage_type   = boot medium, 0-nand, 1-sd, 2-emmc, 3-nor, 4-emmc3, 5-spinand -1(defualt)auto scan
;----------------------------------------------------------------------------------
[target]
boot_clock   	= 1008
storage_type    = 1
nand_use_ubi	= 0

board.dts

&spi0 {
	clock-frequency = <100000000>;
	pinctrl-0 = <&spi0_pins_a &spi0_pins_b>;
	pinctrl-1 = <&spi0_pins_c>;
	pinctrl-names = "default", "sleep";
	/*spi-supply = <&reg_dcdc1>;*/
	spi_slave_mode = <0>;
	spi0_cs_number = <1>;
    spi0_cs_bitmap = <1>;
	status = "disabled";

	spi-nand@0 {
		compatible = "spi-nand";
		spi-max-frequency=<100000000>;
		reg = <0x0>;
		spi-rx-bus-width=<0x04>;
		spi-tx-bus-width=<0x04>;
		status="disabled";
	};

	spi-nor@0 {
		compatible = "jedec,spi-nor";
		spi-max-frequency=<30000000>;
		reg = <0x0>;
		spi-rx-bus-width=<0x01>;
		spi-tx-bus-width=<0x01>;
		status="disabled";
	};
};

&sdc0 {
	bus-width = <4>;
	cd-gpios = <&pio PF 6 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>; 
	/*non-removable;*/
	/*broken-cd;*/
	/*cd-inverted;*/
	/*data3-detect;*/
	/*card-pwr-gpios = <&pio PH 14 1 1 2 0xffffffff>;*/
	cd-used-24M;
	cap-sd-highspeed;
	/*sd-uhs-sdr50;*/
	/*sd-uhs-ddr50;*/
	/*sd-uhs-sdr104;*/
	no-sdio;
	//no-mmc;
	sunxi-power-save-mode;
	/*sunxi-dis-signal-vol-sw;*/
	max-frequency = <150000000>;
	ctl-spec-caps = <0x8>;
	/*vmmc-supply = <&reg_dcdc1>;*/
	/*vqmmc33sw-supply = <&reg_dcdc1>;*/
	/*vdmmc33sw-supply = <&reg_dcdc1>;*/
	/*vqmmc18sw-supply = <&reg_eldo1>;*/
	/*vdmmc18sw-supply = <&reg_eldo1>;*/
	status = "okay";
};

syslog如下：