i.MX6UL Custom Board Booting Issue

[uttej_ravuri]

Hi all,

I have been facing a issue with booting of my i.MX6UL custom board, the changes done in the hardware is we are booting from MMC0, for MMC1 we have connected eMMC.

We have been using the yocto source and in the U-Boot we have changed MMC1 to MMC0 and the image as been tested in i.MX6UL EVK with MMC0 and it was working fine.

The changes done in the U-Boot are as follows

SD card(mmc 0) :

• In file board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c at 482 line comment return devno; add return 0;         /* If not boot from sd/mmc, use default value */
         if (bootsel != 1)
            return CONFIG_SYS_MMC_ENV_DEV;
         /* BOOT_CFG2[3] and BOOT_CFG2[4] */
         dev_no = (soc_sbmr & 0x00001800) >> 11;
         if (dev_no == 1 && mx6_esdhc_fused(USDHC1_BASE_ADDR))
                 dev_no = 0;
         //return dev_no;          /* comment this line */
         return 0;    • In file include/configs/mx6ul_14x14_evk.h
      #define CONFIG_SYS_MMC_ENV_DEV          0    

• In file include/configs/mx6ul_14x14_evk.h
      #define CONFIG_MMCROOT           "/dev/mmcblk0p2"

The attached is the screenshot of the debug log

Thank you.

Regards,

Uttej Ravuri

[Rita_Wang]

Which version of BSP are you using? And have you set the right boot command line in u-boot?

[uttej_ravuri]

We are using Distro 4.19-warrior, kernal version -4.19.35-1.1.0+g8507afc3a397  and we have also tested with Rocko.

The U-Boot itself is not loading, it is resetting in U-Boot the below is the log.

U-Boot 2015.04-dirty (Aug 10 2021 - 14:52:06)

CPU: Freescale i.MX6UL rev1.2 at 396 MHz
CPU: Temperature 47 C
Reset cause: POR
Board: MX6UL 14x14 EVK
I2C: ready
DRAM: 512 MiB
MMC: FSL_SDHC: 0, FSL_SDHC: 1
*** Warning - bad CRC, using default environment

Display: TFT43AB (480x272)
Video: 480x272x24
In: serial
Out: serial
Err: serial
switch to partitions #0, OK
mmc0 is current device
Net: Phy 1 not found
PHY reset timed out
FEC1
Error: FEC1 address not set.

Normal Boot
Hit any key to stop autoboot: 0
=>
=>
=>
=> U-Boot 2015.04-dirty (Aug 10 U-Boot 2015.04-dirty (Aug 10 U-Boot 2015.04-dirty (Aug 10 U-Boot 2015.04-dirty (Aug 10 U-Boot

(without hitting any key it is directly giving arrows (=>) and the autoboot count is not decreasing to 3 to 0. It is directly going to 0 and resetting

we also tried with mfg tool the below is the log

U-Boot 2015.04-imx_v2015.04_4.1.15_1.0.0_ga+g384e1c1 (Mar 13 2016 - 17:39:55)

CPU: Freescale i.MX6UL rev1.2 at 396 MHz
CPU: Temperature 50 C
Reset cause: POR
Board: MX6UL 14x14 EVK
I2C: ready
DRAM: 512 MiB
MMC: FSL_SDHC: 0, FSL_SDHC: 1
Card did not respond to voltage select!
MMC init failed
Using default environment

Display: TFT43AB (480x272)
Video: 480x272x24
In: serial
Out: serial
Err: serial
Card did not respond to voltage select!
Net: Phy 1 not found
PHY reset timed out
FEC1
Error: FEC1 address not set.

Boot from USB for mfgtools
Use default environment for mfgtools
Run bootcmd_mfg: run mfgtool_args;bootz ${loadaddr} ${initrd_addr} ${fdt_addr};
Hit any key to stop autoboot: 0
Kernel image @ 0x80800000 [ 0x000000 - 0x552a48 ]
## Loading init Ramdisk from Legacy Image at 83800000 ...
Image Name: fsl-image-mfgtool-initramfs-imx6
Image Type: ARM Linux RAMDisk Image (gzip compressed)
Data Size: 7565864 Bytes = 7.2 MiB
Load Address: 00000000
Entry Point: 00000000
Verifying Checksum ... OK
## Flattened Device Tree blob at 83000000
Booting using the fdt blob at 0x83000000
Using Device Tree in place at 83000000, end 8300b7c9
Modify /soc/aips-bus@02000000/bee@02044000:status disabled
ft_system_setup for mx6

Starting kernel ...

Booting Linux on physical CPU 0x0
Linux version 4.1.15-1.0.0-mfgtool+g3924425 (bamboo@shlinux12) (gcc version 5.2.0 (GCC) ) #1 SMP PREEMPT Sun Mar 13 17:19:17 CST 2016
CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
Machine model: Freescale i.MX6 UltraLite 14x14 EVK Board
cma: Reserved 320 MiB at 0x8c000000
Memory policy: Data cache writealloc
PERCPU: Embedded 12 pages/cpu @8bb32000 s16768 r8192 d24192 u49152
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 130048
Kernel command line: console=ttymxc0,115200 rdinit=/linuxrc g_mass_storage.stall=0 g_mass_storage.removable=1 g_mass_storage.file=/fat g_massd
PID hash table entries: 2048 (order: 1, 8192 bytes)
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Memory: 173408K/524288K available (6895K kernel code, 319K rwdata, 2412K rodata, 388K init, 423K bss, 23200K reserved, 327680K cma-reserved, )
Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
vmalloc : 0xa0800000 - 0xff000000 (1512 MB)
lowmem : 0x80000000 - 0xa0000000 ( 512 MB)
pkmap : 0x7fe00000 - 0x80000000 ( 2 MB)
modules : 0x7f000000 - 0x7fe00000 ( 14 MB)
.text : 0x80008000 - 0x8091ef88 (9308 kB)
.init : 0x8091f000 - 0x80980000 ( 388 kB)
.data : 0x80980000 - 0x809cff00 ( 320 kB)
.bss : 0x809d2000 - 0x80a3bf14 ( 424 kB)
SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Preemptible hierarchical RCU implementation.
Additional per-CPU info printed with stalls.
RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=1.
RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
NR_IRQS:16 nr_irqs:16 16
mxc_clocksource_init 24000000
Switching to timer-based delay loop, resolution 41ns
sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
clocksource mxc_timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
Console: colour dummy device 80x30
Calibrating delay loop (skipped), value calculated using timer frequency.. 48.00 BogoMIPS (lpj=240000)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
CPU: Testing write buffer coherency: ok
/cpus/cpu@0 missing clock-frequency property
CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
Setting up static identity map for 0x80008280 - 0x800082f0
Brought up 1 CPUs
SMP: Total of 1 processors activated (48.00 BogoMIPS).
CPU: All CPU(s) started in SVC mode.
devtmpfs: initialized
device-tree: Duplicate name in lcdif@021c8000, renamed to "display#1"
VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5
clocksource jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
pinctrl core: initialized pinctrl subsystem
NET: Registered protocol family 16
DMA: preallocated 256 KiB pool for atomic coherent allocations
cpuidle: using governor ladder
cpuidle: using governor menu
hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
hw-breakpoint: maximum watchpoint size is 8 bytes.
imx6ul-pinctrl 20e0000.iomuxc: initialized IMX pinctrl driver
mxs-dma 1804000.dma-apbh: initialized
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
i2c i2c-0: IMX I2C adapter registered
i2c i2c-0: can't use DMA
i2c i2c-1: IMX I2C adapter registered
i2c i2c-1: can't use DMA
Linux video capture interface: v2.00
pps_core: LinuxPPS API ver. 1 registered
pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
PTP clock support registered
Advanced Linux Sound Architecture Driver Initialized.
Switched to clocksource mxc_timer1
NET: Registered protocol family 2
TCP established hash table entries: 4096 (order: 2, 16384 bytes)
TCP bind hash table entries: 4096 (order: 3, 32768 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
UDP hash table entries: 256 (order: 1, 8192 bytes)
UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
NET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
Trying to unpack rootfs image as initramfs...
Freeing initrd memory: 7392K (83800000 - 83f38000)
imx rpmsg driver is registered.
Bus freq driver module loaded
futex hash table entries: 256 (order: 2, 16384 bytes)
VFS: Disk quotas dquot_6.6.0
VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
NFS: Registering the id_resolver key type
Key type id_resolver registered
Key type id_legacy registered
jffs2: version 2.2. (NAND) �© 2001-2006 Red Hat, Inc.
fuse init (API version 7.23)
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
imx-weim 21b8000.weim: Driver registered.
backlight supply power not found, using dummy regulator
21c8000.lcdif supply lcd not found, using dummy regulator
mxsfb 21c8000.lcdif: failed to find mxc display driver
Console: switching to colour frame buffer device 60x34
mxsfb 21c8000.lcdif: initialized
imx-sdma 20ec000.sdma: no event needs to be remapped
imx-sdma 20ec000.sdma: loaded firmware 3.3
imx-sdma 20ec000.sdma: initialized
2020000.serial: ttymxc0 at MMIO 0x2020000 (irq = 19, base_baud = 5000000) is a IMX
console [ttymxc0] enabled
21e8000.serial: ttymxc1 at MMIO 0x21e8000 (irq = 235, base_baud = 5000000) is a IMX
imx sema4 driver is registered.
[drm] Initialized drm 1.1.0 20060810
[drm] Initialized vivante 1.0.0 20120216 on minor 0
brd: module loaded
loop: module loaded
fsl-quadspi 21e0000.qspi: unrecognized JEDEC id bytes: ff, ff, ff
fsl-quadspi 21e0000.qspi: Freescale QuadSPI probe failed
20b4000.ethernet supply phy not found, using dummy regulator
pps pps0: new PPS source ptp0
fec 20b4000.ethernet (unnamed net_device) (uninitialized): Invalid MAC address: 00:00:00:00:00:00
fec 20b4000.ethernet (unnamed net_device) (uninitialized): Using random MAC address: 52:88:f6:cc:09:9c
libphy: fec_enet_mii_bus: probed
fec 20b4000.ethernet eth0: registered PHC device 0
2188000.ethernet supply phy not found, using dummy regulator
pps pps1: new PPS source ptp1
fec 2188000.ethernet (unnamed net_device) (uninitialized): Invalid MAC address: 00:00:00:00:00:00
fec 2188000.ethernet (unnamed net_device) (uninitialized): Using random MAC address: c2:dd:f7:65:e0:db
fec 2188000.ethernet eth1: registered PHC device 1
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ehci-mxc: Freescale On-Chip EHCI Host driver
usbcore: registered new interface driver usb-storage
2184800.usbmisc supply vbus-wakeup not found, using dummy regulator
2184000.usb supply vbus not found, using dummy regulator
2184200.usb supply vbus not found, using dummy regulator
ci_hdrc ci_hdrc.1: EHCI Host Controller
ci_hdrc ci_hdrc.1: new USB bus registered, assigned bus number 1
ci_hdrc ci_hdrc.1: USB 2.0 started, EHCI 1.00
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
Mass Storage Function, version: 2009/09/11
LUN: removable file: (no medium)
LUN: removable read only file: /fat
Number of LUNs=1
Number of LUNs=1
g_mass_storage gadget: Mass Storage Gadget, version: 2009/09/11
g_mass_storage gadget: g_mass_storage ready
mousedev: PS/2 mouse device common for all mice
input: 20cc000.snvs:snvs-powerkey as /devices/platform/soc/2000000.aips-bus/20cc000.snvs/20cc000.snvs:snvs-powerkey/input/input0
input: iMX6UL TouchScreen Controller as /devices/platform/soc/2000000.aips-bus/2040000.tsc/input/input1
snvs_rtc 20cc000.snvs:snvs-rtc-lp: rtc core: registered 20cc000.snvs:snvs-r as rtc0
i2c /dev entries driver
IR NEC protocol handler initialized
IR RC5(x/sz) protocol handler initialized
IR RC6 protocol handler initialized
IR JVC protocol handler initialized
IR Sony protocol handler initialized
IR SANYO protocol handler initialized
IR Sharp protocol handler initialized
IR MCE Keyboard/mouse protocol handler initialized
IR XMP protocol handler initialized
pxp-v4l2 pxp_v4l2: initialized
imx2-wdt 20bc000.wdog: use WDOG_B to reboot.
imx2-wdt 20bc000.wdog: timeout 60 sec (nowayout=0)
sdhci: Secure Digital Host Controller Interface driver
sdhci: Copyright(c) Pierre Ossman
sdhci-pltfm: SDHCI platform and OF driver helper
/soc/aips-bus@02100000/usdhc@02190000: voltage-ranges unspecified
sdhci-esdhc-imx 2190000.usdhc: Got CD GPIO
sdhci-esdhc-imx 2190000.usdhc: No vqmmc regulator found
mmc0: SDHCI controller on 2190000.usdhc [2190000.usdhc] using ADMA
/soc/aips-bus@02100000/usdhc@02194000: voltage-ranges unspecified
sdhci-esdhc-imx 2194000.usdhc: No vmmc regulator found
sdhci-esdhc-imx 2194000.usdhc: No vqmmc regulator found
g_mass_storage gadget: high-speed config #1: Linux File-Backed Storage
mmc1: SDHCI controller on 2194000.usdhc [2194000.usdhc] using ADMA
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
NET: Registered protocol family 10
sit: IPv6 over IPv4 tunneling driver
NET: Registered protocol family 17
Key type dns_resolver registered
cpu cpu0: dev_pm_opp_get_opp_count: device OPP not found (-19)
Registering SWP/SWPB emulation handler
snvs_rtc 20cc000.snvs:snvs-rtc-lp: setting system clock to 1970-01-01 00:00:00 UTC (0)
can-3v3: disabling
clk: Not disabling unused clocks
ALSA device list:
No soundcards found.
Freeing unused kernel memory: 388K (8091f000 - 80980000)
imx-uart 2020000.serial: Rx FIFO overrun
imx-uart 2020000.serial: Rx FIFO overrun
imx-uart 2020000.serial: Rx FIFO overrun
imx-uart 2020000.serial: Rx FIFO overrun
imx-uart 2020000.serial: Rx FIFO overrun
imx-uart 2020000.serial: Rx FIFO overrun
imx-uart 2020000.serial: Rx FIFO overrun
imx-uart 2020000.serial: Rx FIFO overrun
imx-uart 2020000.serial: Rx FIFO overrun
imx-uart 2020000.serial: Rx FIFO overrun
imx-uart 2020000.serial: Rx FIFO overrun
imx-uart 2020000.serial: Rx FIFO overrun
imx-uart 2020000.serial: Rx FIFO overrun
imx-uart 2020000.serial: Rx FIFO overrun
imx-uart 2020000.serial: Rx FIFO overrun
imx-uart 2020000.serial: Rx FIFO overrun
imx-uart 2020000.serial: Rx FIFO overrun
imx-uart 2020000.serial: Rx FIFO overrun