MangoPi Dual T113 主线内核编译记录

[evler]

awboot 编译（无需 SPL UBOOT 直接引导内核）

# 交叉编译器需使用 arm-none-eabi-gcc 以下是我交叉编译器的版本
gcc version 8.3.1 20190703 (release) [gcc-8-branch revision 273027] (GNU Tools for Arm Embedded Processors 8-2019-q3-update)

# 下拉 awboot
git clone https://github.com/szemzoa/awboot
cd awboot

# 编译工具
cd tools
gcc mksunxi.c -o mksunxi

# 修改 Makefile 中的 /bin/expr 为 /usr/bin/expr
	@/usr/bin/expr `/bin/cat .build_revision` + 1 > .build_revision
	
# 编译 awboot
make

测试 awboot

xfel write 0x30000 .\awboot.bin
xfel exec 0x30000

写入 awboot 到 TF 卡

• 修改链接地址：arch/arm32/mach-t113s3/link.ld 文件中 ORIGIN = 0x00030000 修改为 ORIGIN = 0x00020000
• 修改完链接地址后需要清除重新编译make clean all
• 写入到 TF 卡中：sudo dd if=awboot.bin of=/dev/sdd bs=1024 seek=8

内核编译

• 这个是我修改好的主线稳定版内核(带WiFi)：Linux-6.0.1
• 也选择去官网下载内核：kernel
• 修改 kernel.org 下载的内核源代码：

# 修改 drivers/clk/sunxi-ng/Kconfig 文件
 config SUN20I_D1_CCU
 	tristate "Support for the Allwinner D1 CCU"
 	default RISCV && ARCH_SUNXI
-	depends on (RISCV && ARCH_SUNXI) || COMPILE_TEST
+	depends on (ARCH_SUNXI) || COMPILE_TEST
 
 config SUN20I_D1_R_CCU
 	tristate "Support for the Allwinner D1 PRCM CCU"
 	default RISCV && ARCH_SUNXI
-	depends on (RISCV && ARCH_SUNXI) || COMPILE_TEST
+	depends on (ARCH_SUNXI) || COMPILE_TEST

# 修改 drivers/clk/sunxi-ng/ccu-sun20i-d1.c 文件
 static SUNXI_CCU_MUX_DATA(cpux_clk, "cpux", cpux_parents,
-			  0x500, 24, 3, CLK_SET_RATE_PARENT);
+			  0x500, 24, 3, CLK_SET_RATE_PARENT | CLK_IS_CRITICAL);

# 修改 arch/arm/mach-sunxi/platsmp.c 文件，在末尾添加以下内容
static int sun8i_t113_smp_boot_secondary(unsigned int cpu,
				    struct task_struct *idle)
{
    u32 reg;
    void __iomem *cpucfg_membase = ioremap(0x09010000, 0x10);
    void __iomem *cpuexec_membase[] = {ioremap(0x070005C4, 0x10),ioremap(0x070005C8, 0x10)};

	if (cpu != 1)
	    return 0;

	spin_lock(&cpu_lock);

	/* Set CPU boot address */
	writel(__pa_symbol(secondary_startup),	cpuexec_membase[cpu]);

	/* Deassert the CPU core reset */
	reg = readl(cpucfg_membase);
	writel(reg | BIT(cpu), cpucfg_membase);

	spin_unlock(&cpu_lock);

	return 0;
}

static const struct smp_operations sun8i_t113_smp_ops __initconst = {
	.smp_boot_secondary	= sun8i_t113_smp_boot_secondary,
};
CPU_METHOD_OF_DECLARE(sun8i_t113_smp, "allwinner,sun8iw20p1", &sun8i_t113_smp_ops);

配置内核

• 先使用默认配置make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- sunxi_defconfig
• 再打开内核配置 make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- menuconfig
• 打开芯片时钟支持：

> Device Drivers 
	> Common Clock Framework
		<*>   Clock support for Allwinner SoCs
			<*>     Support for the Allwinner D1 CCU 
			<*>     Support for the Allwinner D1 PRCM CCU

添加设备树

• 将设备树添加到内核 arch/arm/boot/dts/ 目录中：sun8i-t113-mangopi-dual.dts sun8i-t113.dtsi
• 并在该目录 Makefile 文件中的CONFIG_MACH_SUN8I下添加改设备树文件：

dtb-$(CONFIG_MACH_SUN8I) += \
	sun8i-a23-evb.dtb \
	sun8i-a23-gt90h-v4.dtb \
	sun8i-a23-inet86dz.dtb \
	.....................
	sun8i-v3s-licheepi-zero-dock.dtb \
	sun8i-v40-bananapi-m2-berry.dtb \
	sun8i-t113-mangopi-dual.dtb

编译

# 编译内核，设备树以及模块
make -j48 ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- zImage dtbs modules

# 内核文件
arch/arm/boot/zImage

# 设备树文件
arch/arm/boot/dts/sun8i-t113-mangopi-dual.dtb

启动日志

Allwinner T113-loader
DRAM SIZE = 128M
DRAM simple test OK.
CPU freq=1200 MHz
SD/MMC card at 'sdhci0' controller found
SD/MMC: Image: Read file zImage addr=45000000
SD/MMC: dt blob: Read file sun8i-t113-mangopi-dual.dtb addr=41800000
booting linux...
[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 6.0.1-g75e3c08038b8 (evler@DESKTOP-6BPS301) (arm-linux-gnueabihf-gcc (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) 7.5.0, GNU ld (GNU Binutils for Ubuntu) 2.30) #1 SMP Fri Oct 14 20:36:14 CST 2022
[    0.000000] CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
[    0.000000] CPU: div instructions available: patching division code
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] OF: fdt: Machine model: MangoPi MQ-Dual
[    0.000000] Memory policy: Data cache writealloc
[    0.000000] cma: Reserved 72 MiB at 0x43800000
[    0.000000] Zone ranges:
[    0.000000]   Normal   [mem 0x0000000040000000-0x0000000047ffffff]
[    0.000000]   HighMem  empty
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000040000000-0x0000000047ffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000040000000-0x0000000047ffffff]
[    0.000000] percpu: Embedded 11 pages/cpu s15508 r8192 d21356 u45056
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 32512
[    0.000000] Kernel command line: mem=128M cma=72M root=/dev/mmcblk0p2 init=/sbin/init rootwait console=tty0 console=ttyS5,115200
[    0.000000] Dentry cache hash table entries: 16384 (order: 4, 65536 bytes, linear)
[    0.000000] Inode-cache hash table entries: 8192 (order: 3, 32768 bytes, linear)
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] Memory: 43384K/131072K available (7168K kernel code, 942K rwdata, 2104K rodata, 1024K init, 266K bss, 13960K reserved, 73728K cma-reserved, 0K highmem)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[    0.000000] rcu: Hierarchical RCU implementation.
[    0.000000] rcu:     RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2.
[    0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[    0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[    0.000000] rcu: srcu_init: Setting srcu_struct sizes based on contention.
[    0.000000] arch_timer: cp15 timer(s) running at 24.00MHz (phys).
[    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x588fe9dc0, max_idle_ns: 440795202592 ns
[    0.000001] sched_clock: 56 bits at 24MHz, resolution 41ns, wraps every 4398046511097ns
[    0.000013] Switching to timer-based delay loop, resolution 41ns
[    0.000189] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[    0.000686] Console: colour dummy device 80x30
[    0.000998] printk: console [tty0] enabled
[    0.001042] Calibrating delay loop (skipped), value calculated using timer frequency.. 48.00 BogoMIPS (lpj=240000)
[    0.001071] pid_max: default: 32768 minimum: 301
[    0.001240] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.001276] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.001835] CPU: Testing write buffer coherency: ok
[    0.002166] /cpus/cpu@0 missing clock-frequency property
[    0.002215] /cpus/cpu@1 missing clock-frequency property
[    0.002237] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[    0.003020] Setting up static identity map for 0x40100000 - 0x40100060
[    0.003193] rcu: Hierarchical SRCU implementation.
[    0.003213] rcu:     Max phase no-delay instances is 1000.
[    0.003749] smp: Bringing up secondary CPUs ...
[    0.004454] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[    0.004581] smp: Brought up 1 node, 2 CPUs
[    0.004622] SMP: Total of 2 processors activated (96.00 BogoMIPS).
[    0.004638] CPU: All CPU(s) started in SVC mode.
[    0.005159] devtmpfs: initialized
[    0.009273] VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5
[    0.009513] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.009556] futex hash table entries: 512 (order: 3, 32768 bytes, linear)
[    0.011856] pinctrl core: initialized pinctrl subsystem
[    0.013201] NET: Registered PF_NETLINK/PF_ROUTE protocol family
[    0.014339] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    0.015229] thermal_sys: Registered thermal governor 'step_wise'
[    0.015529] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
[    0.015578] hw-breakpoint: maximum watchpoint size is 8 bytes.
[    0.023287] platform 5460000.tcon-top: Fixing up cyclic dependency with 5200000.mixer
[    0.023396] platform 5460000.tcon-top: Fixing up cyclic dependency with 5100000.mixer
[    0.023705] platform 5461000.lcd-controller: Fixing up cyclic dependency with 5460000.tcon-top
[    0.024089] platform 5470000.lcd-controller: Fixing up cyclic dependency with 5604000.tv-encoder
[    0.024169] platform 5470000.lcd-controller: Fixing up cyclic dependency with 5460000.tcon-top
[    0.025007] platform 7090000.rtc: Fixing up cyclic dependency with 7010000.clock-controller
[    0.035143] SCSI subsystem initialized
[    0.035656] usbcore: registered new interface driver usbfs
[    0.035715] usbcore: registered new interface driver hub
[    0.035764] usbcore: registered new device driver usb
[    0.035998] mc: Linux media interface: v0.10
[    0.036059] videodev: Linux video capture interface: v2.00
[    0.036145] pps_core: LinuxPPS API ver. 1 registered
[    0.036162] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    0.036192] PTP clock support registered
[    0.036650] Advanced Linux Sound Architecture Driver Initialized.
[    0.037823] clocksource: Switched to clocksource arch_sys_counter
[    0.045181] NET: Registered PF_INET protocol family
[    0.045408] IP idents hash table entries: 2048 (order: 2, 16384 bytes, linear)
[    0.045967] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes, linear)
[    0.046019] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear)
[    0.046044] TCP established hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.046076] TCP bind hash table entries: 1024 (order: 1, 8192 bytes, linear)
[    0.046105] TCP: Hash tables configured (established 1024 bind 1024)
[    0.046201] UDP hash table entries: 256 (order: 1, 8192 bytes, linear)
[    0.046248] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes, linear)
[    0.046434] NET: Registered PF_UNIX/PF_LOCAL protocol family
[    0.047125] RPC: Registered named UNIX socket transport module.
[    0.047166] RPC: Registered udp transport module.
[    0.047180] RPC: Registered tcp transport module.
[    0.047192] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.048343] Initialise system trusted keyrings
[    0.048634] workingset: timestamp_bits=30 max_order=15 bucket_order=0
[    0.053533] NFS: Registering the id_resolver key type
[    0.053617] Key type id_resolver registered
[    0.053634] Key type id_legacy registered
[    0.053689] Key type asymmetric registered
[    0.053705] Asymmetric key parser 'x509' registered
[    0.053840] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246)
[    0.053866] io scheduler mq-deadline registered
[    0.053879] io scheduler kyber registered
[    0.112158] Serial: 8250/16550 driver, 8 ports, IRQ sharing disabled
[    0.121805] CAN device driver interface
[    0.122573] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    0.122600] ehci-platform: EHCI generic platform driver
[    0.122740] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    0.122778] ohci-platform: OHCI generic platform driver
[    0.125187] sun6i-rtc 7090000.rtc: registered as rtc0
[    0.125338] sun6i-rtc 7090000.rtc: setting system clock to 1970-01-02T00:10:37 UTC (87037)
[    0.125500] sun6i-rtc 7090000.rtc: RTC enabled
[    0.125852] i2c_dev: i2c /dev entries driver
[    0.127617] sunxi-wdt 20500a0.watchdog: Watchdog enabled (timeout=16 sec, nowayout=0)
[    0.128870] sun8i-ce 3040000.crypto: Set mod clock to 300000000 (300 Mhz) from 400000000 (400 Mhz)
[    0.129231] sun8i-ce 3040000.crypto: will run requests pump with realtime priority
[    0.129586] sun8i-ce 3040000.crypto: will run requests pump with realtime priority
[    0.129826] sun8i-ce 3040000.crypto: will run requests pump with realtime priority
[    0.130039] sun8i-ce 3040000.crypto: will run requests pump with realtime priority
[    0.130195] sun8i-ce 3040000.crypto: Register cbc(aes)
[    0.130230] sun8i-ce 3040000.crypto: Register ecb(aes)
[    0.130249] sun8i-ce 3040000.crypto: Register cbc(des3_ede)
[    0.130268] sun8i-ce 3040000.crypto: Register ecb(des3_ede)
[    0.130307] sun8i-ce 3040000.crypto: CryptoEngine Die ID 0
[    0.131201] usbcore: registered new interface driver usbhid
[    0.131233] usbhid: USB HID core driver
[    0.133879] NET: Registered PF_PACKET protocol family
[    0.133934] can: controller area network core
[    0.134023] NET: Registered PF_CAN protocol family
[    0.134045] can: raw protocol
[    0.134058] can: broadcast manager protocol
[    0.134075] can: netlink gateway - max_hops=1
[    0.134293] Key type dns_resolver registered
[    0.134448] Registering SWP/SWPB emulation handler
[    0.134555] Loading compiled-in X.509 certificates
[    0.152533] sun20i-d1-pinctrl 2000000.pinctrl: initialized sunXi PIO driver
[    0.174214] 2500400.serial: ttyS1 at MMIO 0x2500400 (irq = 231, base_baud = 1500000) is a 16550A
[    0.195942] 2501400.serial: ttyS5 at MMIO 0x2501400 (irq = 232, base_baud = 1500000) is a 16550A
[    1.049330] printk: console [ttyS5] enabled
[    1.055564] phy phy-4100400.phy.0: Changing dr_mode to 1
[    1.056783] usb_phy_generic usb_phy_generic.1.auto: dummy supplies not allowed for exclusive requests
[    1.060995] ehci-platform 4101000.usb: EHCI Host Controller
[    1.070724] musb-hdrc musb-hdrc.2.auto: MUSB HDRC host driver
[    1.075755] ehci-platform 4101000.usb: new USB bus registered, assigned bus number 1
[    1.081516] musb-hdrc musb-hdrc.2.auto: new USB bus registered, assigned bus number 2
[    1.090282] ehci-platform 4200000.usb: EHCI Host Controller
[    1.097935] hub 2-0:1.0: USB hub found
[    1.104550] ohci-platform 4200400.usb: Generic Platform OHCI controller
[    1.106450] hub 2-0:1.0: 1 port detected
[    1.117184] ehci-platform 4101000.usb: irq 233, io mem 0x04101000
[    1.123361] ehci-platform 4200000.usb: new USB bus registered, assigned bus number 3
[    1.127942] ohci-platform 4200400.usb: new USB bus registered, assigned bus number 4
[    1.140803] ehci-platform 4200000.usb: irq 235, io mem 0x04200000
[    1.147129] sunxi-mmc 4020000.mmc: Got CD GPIO
[    1.148376] ehci-platform 4101000.usb: USB 2.0 started, EHCI 1.00
[    1.157972] ohci-platform 4200400.usb: irq 237, io mem 0x04200400
[    1.159104] ALSA device list:
[    1.167091]   No soundcards found.
[    1.171251] sunxi-mmc 4021000.mmc: allocated mmc-pwrseq
[    1.176832] hub 1-0:1.0: USB hub found
[    1.177242] sunxi-mmc 4020000.mmc: initialized, max. request size: 2048 KB, uses new timings mode
[    1.180665] ehci-platform 4200000.usb: USB 2.0 started, EHCI 1.00
[    1.195722] hub 1-0:1.0: 1 port detected
[    1.200970] hub 3-0:1.0: USB hub found
[    1.204802] hub 3-0:1.0: 1 port detected
[    1.212314] sunxi-mmc 4021000.mmc: initialized, max. request size: 2048 KB, uses new timings mode
[    1.229522] sunxi-mmc 4021000.mmc: card claims to support voltages below defined range
[    1.232548] hub 4-0:1.0: USB hub found
[    1.241326] hub 4-0:1.0: 1 port detected
[    1.257235] mmc1: new high speed SDIO card at address 0001
[    1.284358] mmc0: new high speed SDHC card at address aaaa
[    1.290803] mmcblk0: mmc0:aaaa SL32G 29.7 GiB
[    1.300997]  mmcblk0: p1 p2
[    1.307944] ohci-platform 4101400.usb: Generic Platform OHCI controller
[    1.314620] ohci-platform 4101400.usb: new USB bus registered, assigned bus number 5
[    1.322709] ohci-platform 4101400.usb: irq 236, io mem 0x04101400
[    1.402615] hub 5-0:1.0: USB hub found
[    1.406430] hub 5-0:1.0: 1 port detected
[    1.443652] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Quota mode: disabled.
[    1.452694] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.
[    1.467648] devtmpfs: mounted
[    1.471630] Freeing unused kernel image (initmem) memory: 1024K
[    1.478021] Run /sbin/init as init process
[    1.840340] EXT4-fs (mmcblk0p2): re-mounted. Quota mode: disabled.
Starting syslogd: OK
Starting klogd: OK
Running sysctl: OK
Starting mdev... OK
[    2.771703] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[    2.815733] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
Initializing random number generator: OK
Saving random seed: [    5.777828] random: crng init done
OK
Starting system message bus: done
Starting network: OK
Starting WiFi: Successfully initialized wpa_supplicant
OK
udhcpc: started, v1.35.0
udhcpc: broadcasting discover
Starting sshd: OK

Welcome to MangoPi Dual
buildroot login: root
[root@buildroot]:~$ udhcpc: broadcasting discover
udhcpc: broadcasting select for 192.168.10.211, server 192.168.10.251
udhcpc: lease of 192.168.10.211 obtained from 192.168.10.251, lease time 43200
deleting routers
adding dns 192.168.10.251

[root@buildroot]:~$ free -h
              total        used        free      shared  buff/cache   available
Mem:         115.4M       12.7M       79.8M       60.0K       22.8M       97.0M
Swap:             0           0           0
[root@buildroot]:~$ df -h
Filesystem                Size      Used Available Use% Mounted on
/dev/root                29.0G     21.8M     27.4G   0% /
devtmpfs                 21.2M         0     21.2M   0% /dev
tmpfs                    57.7M         0     57.7M   0% /dev/shm
tmpfs                    57.7M     32.0K     57.7M   0% /tmp
tmpfs                    57.7M     28.0K     57.7M   0% /run
[root@buildroot]:~$ uname -a
Linux buildroot 6.0.1-g75e3c08038b8 #1 SMP Fri Oct 14 20:36:14 CST 2022 armv7l GNU/Linux
[root@buildroot]:~$ iperf3 -s
warning: this system does not seem to support IPv6 - trying IPv4
-----------------------------------------------------------
Server listening on 5201 (test #1)
-----------------------------------------------------------
Accepted connection from 192.168.10.246, port 8252
[  5] local 192.168.10.211 port 5201 connected to 192.168.10.246 port 8254
[ ID] Interval           Transfer     Bitrate
[  5]   0.00-1.00   sec  3.92 MBytes  32.9 Mbits/sec
[  5]   1.00-2.00   sec  5.59 MBytes  46.9 Mbits/sec
[  5]   2.00-3.00   sec  5.49 MBytes  46.1 Mbits/sec
[  5]   3.00-4.00   sec  5.69 MBytes  47.7 Mbits/sec
[  5]   4.00-5.00   sec  5.76 MBytes  48.3 Mbits/sec
[  5]   5.00-6.00   sec  5.72 MBytes  48.0 Mbits/sec
[  5]   6.00-7.00   sec  5.79 MBytes  48.5 Mbits/sec
[  5]   7.00-8.00   sec  5.54 MBytes  46.5 Mbits/sec
[  5]   8.00-9.00   sec  5.48 MBytes  45.9 Mbits/sec
[  5]   9.00-10.00  sec  5.70 MBytes  47.8 Mbits/sec
[  5]  10.00-10.04  sec   239 KBytes  48.0 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate
[  5]   0.00-10.04  sec  54.9 MBytes  45.9 Mbits/sec                  receiver
-----------------------------------------------------------
Server listening on 5201 (test #2)
-----------------------------------------------------------

给 TF 卡分区以及跟文件系统的制作等，这里就不再讲解，可以参考我写的另一篇帖子：MQ-Quad H616 主线内核编译调试记录(u-boot、kernel、buildroot)

[ftwtwzy]

主线，主线

[xiaok]

This post is deleted!

[xiaok]

This post is deleted!

[baiwen]

@evler 在 MangoPi Dual T113 主线内核编译记录 中说：

sudo dd if=awboot.bin of=/dev/sdd bs=1024 seek=8
神奇，使用百问网的t113 pro开发板，不管改不改内核设备树里面的 uart接口，都是boot启动不了 内核，明天再排查排查

[ftwtwzy]

@allwinnertech 在 MangoPi Dual T113 主线内核编译记录 中说：

@evler 在 MangoPi Dual T113 主线内核编译记录 中说：

sudo dd if=awboot.bin of=/dev/sdd bs=1024 seek=8
神奇，使用百问网的t113 pro开发板，不管改不改内核设备树里面的 uart接口，都是boot启动不了 内核，明天再排查排查

看看这个，希望能用到
https://whycan.com/t_9231.html

[baiwen]

@ftwtwzy 好的，谢谢

[qq978815410]

@baiwen 大佬，有弄出来吗？我用你们百问网的板子也是这个问题，启动不了内核？nand型号是MX35LF1GE4AB