我在使用 orangepi3 時遇到問題。
我有一張正常情況下可以使用的圖片，
但偶爾會出現以下問題。一旦出現此問題，此時刻錄的影像將無法再使用，只能再現刻錄的影像
uboot啟動時報如下錯誤。
Hit any key to stop autoboot: 0
no mmc device at slot 0
mmc2(part 0) is current device
2512 bytes read in 5 ms (490.2 KiB/s)
## Executing script at 43100000
U-boot loaded from SD
Boot script loaded from mmc
** Bad device mmc 0 **
** File not found /boot/dtb/sunxi/sun50i-h6-orangepi3.dtb **
libfdt fdt_check_header(): FDT_ERR_BADMAGIC
8247895 bytes read in 404 ms (19.5 MiB/s)
19425352 bytes read in 945 ms (19.6 MiB/s)
但我確信這個檔案存在；因為當這個錯誤存在時，我輸入uboot并列印設備樹。可以正確列印，但是執行boot命令還是會報這個錯誤。
然后我檢查了檔案系統，發現該檔案存在于路徑中。
我查看了uboot原始碼，在fdt_check_header函式中發現了這個錯誤
int fdt_check_header(const void *fdt)
{
if (fdt_magic(fdt) == FDT_MAGIC) {
/* Complete tree */
if (fdt_version(fdt) < FDT_FIRST_SUPPORTED_VERSION)
return -FDT_ERR_BADVERSION;
if (fdt_last_comp_version(fdt) > FDT_LAST_SUPPORTED_VERSION)
return -FDT_ERR_BADVERSION;
} else if (fdt_magic(fdt) == FDT_SW_MAGIC) {
/* Unfinished sequential-write blob */
if (fdt_size_dt_struct(fdt) == 0)
return -FDT_ERR_BADSTATE;
} else {
return -FDT_ERR_BADMAGIC;
}
return 0;
}
But in uboot init_sequence_f exe reserve_fdt also have the verification of the device tree header,and the verification has passed. but in uboot autoboot_command run_command_list cmd_list an error occurred in the device tree header checked.resulting in failure to enter the kernel correctly.
Before entering FDT_ check_ I added a print function before the header function
Before entering the function fdt_check_header() I add a print like following in reserve_fdt()
static int reserve_fdt(void) {
/*
* If the device tree is sitting immediate above our image then we
* must relocate it. If it is embedded in the data section, then it
* will be relocated with other data.
*/
if (gd->fdt_blob) {
pr_msg("reserve_fdt fdt_check_headeris %d\n",fdt_magic(gd->fdt_blob));
if(fdt_check_header(gd->fdt_blob) != 0)
{
pr_msg("fdt header check error\n");
return -1;
}
//reserve memory for expand dtb ,because cmd_fdt will update the base dtb
gd->fdt_size = ALIGN(fdt_totalsize(gd->fdt_blob) 0x1000, 32);
fdt_set_totalsize((void*)gd->fdt_blob,gd->fdt_size);
gd->start_addr_sp -= gd->fdt_size * 2;
gd->new_fdt = map_sysmem(gd->start_addr_sp, gd->fdt_size);
debug("Reserving %lu Bytes for FDT at: lx\n",
gd->fdt_size, gd->start_addr_sp);
}
return 0;
}
And in function fdt_valid() add too;
static int fdt_valid(struct fdt_header **blobp)
{
const void *blob = *blobp;
int err;
if (blob == NULL) {
printf ("The address of the fdt is invalid (NULL).\n");
return 0;
}
printf("fdt_valid fdt_check_header is %d\n",fdt_magic(blob));
err = fdt_check_header(blob);
if (err == 0)
return 1; /* valid */
if (err < 0) {
printf("libfdt fdt_check_header(): %s", fdt_strerror(err));
/*
* Be more informative on bad version.
*/
if (err == -FDT_ERR_BADVERSION) {
if (fdt_version(blob) <
FDT_FIRST_SUPPORTED_VERSION) {
printf (" - too old, fdt %d < %d",
fdt_version(blob),
FDT_FIRST_SUPPORTED_VERSION);
}
if (fdt_last_comp_version(blob) >
FDT_LAST_SUPPORTED_VERSION) {
printf (" - too new, fdt %d > %d",
fdt_version(blob),
FDT_LAST_SUPPORTED_VERSION);
}
}
printf("\n");
*blobp = NULL;
return 0;
}
return 1;
}
Then,when the error occurs,the log is as follows:
U-Boot 2014.07-orangepi (Oct 29 2021 - 09:07:58) Xunlong Software
[1.947]uboot commit : b65841975dcb31f64a2c69344f60db12b98791ae
[1.947]secure enable bit: 0
[1.947]normal mode: with secure monitor
I2C: ready
[1.949]pmbus: ready
[1.949][ARISC] :arisc initialize
[1.975][ARISC] :arisc para ok
[SCP] :sunxi-arisc driver begin startup 2
[SCP] :arisc version: []
[SCP] :sunxi-arisc driver v1.10 is starting
[1.987][ARISC] :sunxi-arisc driver startup succeeded
[1.989]PMU: AXP806
[1.989]PMU: AXP806 found
[1.989]bat_vol=0, ratio=0
[1.989]set pc_bias(1) bias:1800
[1.989]set pg_bias(5) bias:1800
[1.989]set power on vol to default
[1.989]dcdca_vol = 1000, onoff=1
[1.993]aldo2_vol = 3300, onoff=1
[1.998]bldo3_vol = 1800, onoff=1
[2.002]cldo2_vol = 3300, onoff=1
[2.006]cldo3_vol = 3300, onoff=1
[2.010]find power_sply to end
[2.010]cant find pll setting(1320M) from pll table,use default(408M)
[2.012]PMU: cpux 408 Mhz,AXI=204 Mhz
[2.013]PLL6=600 Mhz,AHB1=200 Mhz, APB1=100Mhz MBus=400Mhz
[2.017]DRAM: 1 GiB
[2.019]reserve_fdt fdt_check_headeris -804389139
[2.026]fdt addr: 0x79ccb0e0
[2.026]gd->fdt_size: 0x1a6c0
[2.030]Relocation Offset is: 34e03000
[2.095]gic: sec monitor mode
[2.095]line:180 func:check_ir_boot_recovery start
[2.095]ir boot recovery not used
[2.095][key recovery] no use
[2.096][box standby] read rtc = 0x0
[2.096][box standby] start_type = 0x1
[2.096][box standby] to kernel
[2.096]workmode = 0,storage type = 2
[2.098]MMC: 2
SUNXI SD/MMC: 2
[mmc]: [0-60|61]
[mmc]: [0-51|52]
[mmc]: [7-48|42]
[mmc]: [0-11|12] [26-29|4] [34-50|17]
[mmc]: [0-48|49] [54-56|3] [58-63|6]
[mmc]: [0-26|27] [54-63|10]
[mmc]: [0-58|59]
[mmc]: [6-51|46] [53-58|6]
[mmc]: [1-7|7] [9-56|48]
[mmc]: [1-26|26]
Normal
[6.618]MMC: 2
SUNXI SD/MMC: 2, SUNXI SD/MMC: 2
[6.624]sunxi flash init ok
[6.624]hdmi hdcp not enable!
Using default environment
[6.625]inter uboot shell
Hit any key to stop autoboot: 0
no mmc device at slot 0
mmc2(part 0) is current device
2512 bytes read in 5 ms (490.2 KiB/s)
## Executing script at 43100000
U-boot loaded from SD
Boot script loaded from mmc
** Bad device mmc 0 **
**** File not found /boot/dtb/sunxi/sun50i-h6-orangepi3.dtb **
fdt_valid fdt_check_header is -1271711085
libfdt fdt_check_header(): FDT_ERR_BADMAGIC
fdt_valid fdt_check_header is -1271711085
libfdt fdt_check_header(): FDT_ERR_BADMAGIC**
8247895 bytes read in 404 ms (19.5 MiB/s)
19425352 bytes read in 945 ms (19.6 MiB/s)
## Booting kernel from Legacy Image at 41000000 ...
Image Name:
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 19425288 Bytes = 18.5 MiB
Load Address: 41000000
Entry Point: 41000000
Verifying Checksum ... OK
## Loading init Ramdisk from Legacy Image at 43300000 ...
Image Name: uInitrd
Image Type: ARM Linux RAMDisk Image (gzip compressed)
Data Size: 8247831 Bytes = 7.9 MiB
Load Address: 00000000
Entry Point: 00000000
Verifying Checksum ... OK
Loading Kernel Image ... OK
reserving fdt memory region: addr=40020000 size=800
reserving fdt memory region: addr=48000000 size=1000000
reserving fdt memory region: addr=48100000 size=4000
reserving fdt memory region: addr=48104000 size=1000
reserving fdt memory region: addr=48105000 size=1000
reserving fdt memory region: addr=79ccb0e0 size=18f20
Loading Ramdisk to 49822000, end 49fffa17 ... OK
Using Device Tree in place at 44000000, end 4401d6bf
[8.736]disp_ioctl, display not init yet
[8.736]disp_ioctl, display not init yet
Starting kernel ...
INFO: BL3-1: Next image address = 0x41000000
INFO: BL3-1: Next image spsr = 0x3c5
WARNING: Unimplemented Standard Service Call: 0xc0000026
and the number fdt_check_headeris -804389139 id normol;
This why? Why is the verification still correct in the front, but an error occurs in the back?
Have you ever encountered this problem? Or can you give me some advice? Thanks!
uj5u.com熱心網友回復：
每次重新啟動時報告日志是否相同？
如果相同，硬體存盤中的DTB就可以了。
并且您應該關注兩個fdt_magic函式呼叫之間的記憶體覆寫。
uj5u.com熱心網友回復：
您在2014.07 其中既缺少對現代 ext4 檔案系統映像的支持，也缺少警告/拒絕掛載具有默認啟用功能的現代 ext4 檔案系統映像，這些映像顯示諸如“我知道存在的檔案，我可以在 Linux 中看到它”等癥狀，沒有找到”。請升級到當前的 U-Boot。
轉載請註明出處，本文鏈接：https://www.uj5u.com/qukuanlian/359446.html