ah669741 发布的帖子

@whycanservice 把rootfs下面的所有分区都注释了就好了

@whycanservice 大佬这种方法行是行，但是太占空间了，我把52.8M文件放入你说的目录中编译打包烧到spinand中，直接占了170.9M，这是怎么计算的，把我52.8M文件删了就65M，有问题

@whycanservice 好的，感谢，我今天看了半天论坛发现squashfs格式文件系统就是只读的，而且是压缩文件，不像ext4格式想改就改

@whycanservice 放到UDISk是可以，但是我想直接放到/lib下，怎么处理？我把rootfs后面的分区全都注释掉，然后给rootfs分配大点空间，用adb导文件提示文件系统是只读的

@whycanservice 没有这个命令fdisk，mount查看不了大小，下面是执行mount后的打印

/dev/root on /rom type squashfs (ro,relatime)
devtmpfs on /dev type devtmpfs (rw,relatime,size=53024k,nr_inodes=13256,mode=755)
/proc on /proc type proc (rw,relatime)
tmpfs on /tmp type tmpfs (rw,relatime)
sys on /sys type sysfs (rw,relatime)
/dev/by-name/rootfs_data on /overlay type ubifs (rw,relatime,assert=read-only,ubi=0,vol=7)
overlayfs:/overlay on / type overlay (rw,noatime,lowerdir=/,upperdir=/overlay/upper,workdir=/overlay/workdir)
devpts on /dev/pts type devpts (rw,relatime,gid=5,mode=620,ptmxmode=000)
/dev/ubi0_8 on /mnt/UDISK type ubifs (rw,relatime,assert=read-only,ubi=0,vol=8)
none on /sys/kernel/debug type debugfs (rw,relatime)
none on /sys/kernel/config type configfs (rw,relatime)
adb on /dev/usb-ffs/adb type functionfs (rw,relatime)

@whycanservice 我直接往根目录写也不行

我使用的是256Mspinandflash,文件系统设置的是150M
烧录完成后我查看文件系统大小为65.1M
然后使用adb导入一个52.8M文件
adb打印空间不足
65.1M加52.8M不到150M，即使加上其他分区也不回超过150M，为啥一直提示空间不足？
我把rootfs大小设置为200M依旧是这样

@ah669741 从这里下

@lansecd 0001-disp-add-uboot-logo-to-kernel-logo-amooth-ahow-patch包从哪下

@whycan 找到问题了，lcd背光使用了pwm通道8即pwm7，没有显式得使用PD22，所以一直没找到哪里被占用了，看了其他帖子有人回答说pwm7和lcd绑定了，我一看还真是的，注释掉就好了，总之还是得谢谢晕哥

.sunxi.dts

@whycanservice 有个问题SD card 0是sd卡，SD card 1是emmc，SD card 2是spi flash，这个顺序对么

@whycanservice 好的感谢

2222222222[20]HELLO! BOOT0 is starting!
[23]BOOT0 commit : adaf1174cc
[26]set pll start
[32]periph0 has been enabled
[35]set pll end
[37][pmu]: bus read error
[39]board init ok
[41]key press : 2
[43]detected_f user input 2
[30622]fes begin commit:adaf1174cc
[30625]set pll start
[30631]periph0 has been enabled
[30634]set pll end
[30636][pmu]: bus read error
[30638]board init ok
[30640]beign to init dram
[30643]ZQ value = 0x2e
[30645]get_pmu_exist() = -1
[30648]ddr_efuse_type: 0xa
[30650]trefi:7.8ms
[30653][AUTO DEBUG] single rank and full DQ!
[30657]ddr_efuse_type: 0xa
[30659]trefi:7.8ms
[30662][AUTO DEBUG] rank 0 row = 13
[30665][AUTO DEBUG] rank 0 bank = 8
[30668][AUTO DEBUG] rank 0 page size = 2 KB
[30673]DRAM BOOT DRIVE INFO: V0.33
[30676]DRAM CLK = 936 MHz
[30678]DRAM Type = 3 (2:DDR2,3:DDR3)
[30681]DRAMC read ODT  off.
[30684]DRAM ODT value: 0x42.
[30687]ddr_efuse_type: 0xa
[30690]DRAM SIZE =128 M
[30692]dram_tpr4:0x0
[30694]PLL_DDR_CTRL_REG:0xf8004d00
[30697]DRAM_CLK_REG:0xc0000000
[30700][TIMING DEBUG] MR2= 0x20
[30704]DRAM simple test OK.
[30707]rtc standby flag is 0x0, super standby flag is 0x0
[30712]init dram ok


U-Boot 2018.05-g2a1965a (Jul 10 2022 - 02:50:57 +0000) Allwinner Technology

[32.287]CPU:   Allwinner Family
[32.290]Model: sun8iw20
[32.292]DRAM:  128 MiB
[32.295]Relocation Offset is: 04ebc000
[32.321]secure enable bit: 0
[32.324]CPU=1008 MHz,PLL6=600 Mhz,AHB=200 Mhz, APB1=100Mhz  MBus=300Mhz
[32.330]gic: normal mode
[32.332]flash init start
[32.335]workmode = 16,storage type = 0
try card 2
set card number 2
get card number 2
[32.342][mmc]: mmc driver ver uboot2018:2021-12-20 13:35:00
[32.349][mmc]: Is not Boot mode!
[32.352][mmc]: SUNXI SDMMC Controller Version:0x50310
[32.363][mmc]: ************Try SD card 2************
[32.368][mmc]: mmc 2 cmd timeout 100 status 100
[32.373][mmc]: smc 2 err, cmd 8,  RTO
[32.376][mmc]: mmc 2 close bus gating and reset
[32.381][mmc]: mmc 2 cmd timeout 100 status 100
[32.385][mmc]: smc 2 err, cmd 55,  RTO
[32.389][mmc]: mmc 2 close bus gating and reset
[32.393][mmc]: ************Try MMC card 2************
[32.402][mmc]: mmc 2 cmd timeout 100 status 100
[32.406][mmc]: smc 2 err, cmd 1,  RTO
[32.409][mmc]: mmc 2 close bus gating and reset
[32.413][mmc]: Card did not respond to voltage select!
[32.418][mmc]: ************SD/MMC 2 init error!************
[32.424][mmc]: mmc init product failed
MMC init failed
try emmc fail
[32.430]sunxi-spinand: AW SPINand MTD Layer Version: 1.8 20220106
[32.436]sunxi-spinand-phy: AW SPINand Phy Layer Version: 1.11 20211217
[32.444]sunxi-spinand-phy: request spi0 gpio ok
[32.448]sunxi-spinand-phy: request general tx dma channel ok!
[32.453]sunxi-spinand-phy: request general rx dma channel ok!
[32.459]sunxi-spinand-phy: set spic0 clk to 20 Mhz
[32.463]sunxi-spinand-phy: init spic0 clk ok
[33.467]sunxi-spinand-phy: read id failed : -110
try nand fail
[33.474]unrecognized JEDEC id bytes: ff, ff, ff
data abort
pc : [<47efd66c>]          lr : [<47efd64f>]
reloc pc : [<4304166c>]    lr : [<4304164f>]
sp : 43e59c28  ip : 0000000d     fp : 43000508
r10: 43012be9  r9 : 43e9be70     r8 : 00000102
r7 : 47f72648  r6 : ffffffed     r5 : 47f41cec  r4 : 43edc680
r3 : 00003000  r2 : 00000001     r1 : c0000000  r0 : 00000030
Flags: Nzcv  IRQs on  FIQs off  Mode SVC_32

我用t113编译点灯驱动也遇到了这个问题，楼主是怎么解决的