uenv: r3/r4: add usenvme command

Author: frank-w

uEnv_r3.txt

@@ -41,6 +41,7 @@ buildargs=setenv bootargs "board=${board} earlycon=uart8250,mmio32,0x11002000 ${
 #console=${console}
 
 useusb=if usb info; then usb reset;else usb start;fi; setenv device usb;setenv partition 0:1;ls ${device} ${partition}
+usenvme=pci enum; nvme scan;nvme info; if ls nvme 0:1;then setenv device nvme;setenv partition 0:1;else echo nvme partition not found;fi
 
 useinitrd=setenv root "/dev/ram0 rw";setenv bootopts "${bootopts} initrd=${rdaddr},20M";
 checkrd=if printenv initrd;then if fatload ${device} ${partition} ${rdaddr} ${initrd};then run useinitrd;fi;fi
@@ -77,4 +78,3 @@ bootmenu_1=2. Boot kernel from TFTP.=run askbootnetfit
 bootmenu_2=3. Boot from SD/EMMC.=run newboot
 
 bootmenu_default=2
-

uEnv_r4.txt

@@ -41,6 +41,7 @@ loadkernel=fatload $device $partition $kaddr ${kernel}
 buildargs=setenv bootargs "board=${board} console=${console} root=${root} ${bootopts}
 
 useusb=if usb info; then usb reset;else usb start;fi; setenv device usb;setenv partition 0:1;ls ${device} ${partition}
+usenvme=pci enum; nvme scan;nvme info; if ls nvme 0:1;then setenv device nvme;setenv partition 0:1;else echo nvme partition not found;fi
 
 useinitrd=setenv root "/dev/ram0 rw";setenv bootopts "${bootopts} initrd=${rdaddr},100M";
 checkrd=if printenv initrd;then if fatload ${device} ${partition} ${rdaddr} ${initrd};then run useinitrd;fi;fi