Linux/PROCESSOR-SDK-AM57X: Compiling the SDK

The software team have been notified. They will respond here.

Hi Biser
Thank you, waiting for inputs from SW team.

Hi Yordan,

Thanks for your response. I have received TMDSEVM572X and able to boot to the Matrix UI app with the pre-loaded images on the SD card.

Now my main aim is to use the kernel, dtb & u-boot images generated from source compilation. I have replaced the MLO & u-boot.img in "boot" partition of the uSD card with the images generated from source compilation.

I see kernel stops booting, it just stops at the final print "Starting kernel ..." Following is the boot-log

U-Boot SPL 2016.05-00319-g8d0b2ca-dirty (May 03 2017 - 17:22:03)
DRA752-GP ES2.0
Trying to boot from MMC1
reading args
spl_load_image_fat_os: error reading image args, err - -1
reading u-boot.img
reading u-boot.img
reading u-boot.img
reading u-boot.img


U-Boot 2016.05-00319-g8d0b2ca-dirty (May 03 2017 - 17:22:03 +0530)

CPU  : DRA752-GP ES2.0
Model: TI AM5728 BeagleBoard-X15
Board: AM572x EVM REV A.3A
DRAM:  2 GiB
MMC:   no pinctrl for sdr104
no pinctrl for ddr50
no pinctrl for sdr50
no pinctrl for sdr25
no pinctrl for sdr12
OMAP SD/MMC: 0, OMAP SD/MMC: 1
reading uboot.env

** Unable to read "uboot.env" from mmc0:1 **
Using default environment

SCSI:  SATA link 0 timeout.
AHCI 0001.0300 32 slots 1 ports 3 Gbps 0x1 impl SATA mode
flags: 64bit ncq stag pm led clo only pmp pio slum part ccc apst
scanning bus for devices...
Found 0 device(s).
Net:   
Warning: ethernet@48484000 using MAC address from ROM
eth0: ethernet@48484000
Hit any key to stop autoboot:  0
switch to partitions #0, OK
mmc0 is current device
SD/MMC found on device 0
reading boot.scr
** Unable to read file boot.scr **
reading uEnv.txt
607 bytes read in 4 ms (147.5 KiB/s)
Loaded env from uEnv.txt
Importing environment from mmc0 ...
switch to partitions #0, OK
mmc0 is current device
SD/MMC found on device 0
3395008 bytes read in 181 ms (17.9 MiB/s)
** File not found /boot/am57xx-evm-reva3.dtb **
Kernel image @ 0x82000000 [ 0x000000 - 0x33cdc0 ]

Starting kernel ...

Here are my questions:

1) I have realized that u-boot is looking for rootfs//boot/am57xx-evm-reva3.dtb file, I have copied this file from kernel/arch/arm/boot/dts folder to rootfs/boot of uSD card.

after this I do not see the print "** File not found /boot/am57xx-evm-reva3.dtb **" but kernel booting stops after the print "Starting kernel ..."

Do I need to modify any console port changes ?? please give your inputs.

U-Boot SPL 2016.05-00319-g8d0b2ca-dirty (May 03 2017 - 17:22:03)
DRA752-GP ES2.0
Trying to boot from MMC1
reading args
spl_load_image_fat_os: error reading image args, err - -1
reading u-boot.img
reading u-boot.img
reading u-boot.img
reading u-boot.img


U-Boot 2016.05-00319-g8d0b2ca-dirty (May 03 2017 - 17:22:03 +0530)

CPU  : DRA752-GP ES2.0
Model: TI AM5728 BeagleBoard-X15
Board: AM572x EVM REV A.3A
DRAM:  2 GiB
MMC:   no pinctrl for sdr104
no pinctrl for ddr50
no pinctrl for sdr50
no pinctrl for sdr25
no pinctrl for sdr12
OMAP SD/MMC: 0, OMAP SD/MMC: 1
reading uboot.env

** Unable to read "uboot.env" from mmc0:1 **
Using default environment

SCSI:  SATA link 0 timeout.
AHCI 0001.0300 32 slots 1 ports 3 Gbps 0x1 impl SATA mode
flags: 64bit ncq stag pm led clo only pmp pio slum part ccc apst
scanning bus for devices...
Found 0 device(s).
Net:   
Warning: ethernet@48484000 using MAC address from ROM
eth0: ethernet@48484000
Hit any key to stop autoboot:  0
switch to partitions #0, OK
mmc0 is current device
SD/MMC found on device 0
reading boot.scr
** Unable to read file boot.scr **
reading uEnv.txt
607 bytes read in 3 ms (197.3 KiB/s)
Loaded env from uEnv.txt
Importing environment from mmc0 ...
switch to partitions #0, OK
mmc0 is current device
SD/MMC found on device 0
3395008 bytes read in 180 ms (18 MiB/s)
103020 bytes read in 65 ms (1.5 MiB/s)
Kernel image @ 0x82000000 [ 0x000000 - 0x33cdc0 ]
## Flattened Device Tree blob at 88000000
   Booting using the fdt blob at 0x88000000
   Loading Device Tree to 8ffe3000, end 8ffff26b ... OK

Starting kernel ...

2) I have figured it out that pre-loaded images on the uSD card shipped along with EVM are using "am57xx-evm-es2plus.dtb", but compiling the kernel source doesn't generate this file. I am using the kernel source from TI-SDK. I have built kernel for tisdk_am57xx-evm_defconfig, do I need to choose different config??

3) What is the right machine model of EVM ?

Machine model: TI AM572x EVM ES2+

or

Model: TI AM5728 BeagleBoard-X15

Please provide your inputs at the earliest.

Thanks & Regards,

Vamshi G.

Hi,

1). What is your board revision? It is possible that the reva3 dtb is NOT for your board, this is a very common case, when booting stops at Starting kernel...
2).

I have built kernel for tisdk_am57xx-evm_defconfig, do I need to choose different config??

No, you shouldn't use another defconfig file.
3). Again see which revision is your board and look for a similar dtb. If none, then you need to use the coomon dts file: am57xx-evm.dts

Best Regards,
Yordan

Hi Yordan,

1) Below are the details, are these sufficient for the question board version? if not please let me know from where I can find it.
CPU : DRA752-GP ES2.0
Model: TI AM5728 BeagleBoard-X15

Board: AM572x EVM REV A.3A

2) You have asked me to build kernel for the config tisdk_am57xx-evm_defconfig, but I see in the dts folder there is not file named am57xx-evm-es2plus.dtb, how to resolve this? as the pre-loaded images on SD are using the mentioned file.

Let me jump here...
I see comments regarding TI boards as well as X15 from Beagleboard.org..
Just to be sure....your questions are related to TI EVM /IDK or Beagleboard X15?

Thanks for coming to help me out, I can say I have purchased this board www.ti.com/.../TMDSEVM572X which is from TI. When I build the u-boot source provided along with the SDK & run it see the following prints

U-Boot 2016.05-00319-g8d0b2ca-dirty (May 03 2017 - 18:16:36 +0530)

CPU : DRA752-GP ES2.0
Model: TI AM5728 BeagleBoard-X15
Board: AM572x EVM REV A.3A

please help me confirm what board it is.

Thanks.

thanks for your reply...OK, you have our TI EVM TMDSEVM572x. Yordan will help you from here.

Thank you, I am waiting for inputs from Yordan

Hi Yordan,

I have built the following from the source provided with SDK.

u-boot => am57xx_evm_config

kernel => tisdk_am57xx-evm_defconfig

cross compiler => arm-linux-gnueabi-

build-root => filesystem

dtb-file = > am57xx-evm.dtb

I am able to boot to shell, I am afraid because of the following reasons

1) USB hub on TMDSEVM572X is not getting detected

2) Following prints from U-boot are bit worry, I did not see these prints with the pre-loaded images received with EVM

MMC:   no pinctrl for sdr104

no pinctrl for ddr50

no pinctrl for sdr50

no pinctrl for sdr25

no pinctrl for sdr12

3) I am still looking for build configurations where I can generate the proper image files (u-boot, am57xx-evm-es2plus.dtb, zImage) to replicate the pre-loaded images functionality received along with EVM

Please help me. I will be not available for next week. I will be polling this page for inputs from you.

Thanks in advance.

VamshiG

Dear Team,

Any update on this post, please help me at the earliest

Thanks for your response, I will try your steps on 19th of May (right now, I ma in business trip), and update the observation here.

Hi Yordan,

I followed the steps mentioned above, I have prepared boot micro SD card with the tisdk-rootfs-image-am57xx-evm.tar.xz provided with the SDK, with Kernel, U-boot & MLO built from the source compiled. I am able to boot fine to the Matrix GUI application.

I have the following questions:

1) I still see the below prints in u-boot, worried about the prints in red

U-Boot SPL 2016.05-00319-g8d0b2ca-dirty (May 23 2017 - 11:45:11)

DRA752-GP ES2.0

Trying to boot from MMC1

reading args

spl_load_image_fat_os: error reading image args, err - -1

reading u-boot.img

reading u-boot.img

reading u-boot.img

reading u-boot.img

U-Boot 2016.05-00319-g8d0b2ca-dirty (May 23 2017 - 11:45:11 +0530)

CPU  : DRA752-GP ES2.0

Model: TI AM5728 BeagleBoard-X15

Board: AM572x EVM REV A.3A

DRAM:  2 GiB

MMC:   no pinctrl for sdr104

no pinctrl for ddr50

no pinctrl for sdr50

no pinctrl for sdr25

no pinctrl for sdr12

OMAP SD/MMC: 0, OMAP SD/MMC: 1

reading uboot.env

Please give your inputs

2) I have tried to use the custom root file-system generated using buildroot, I have prepared boot micro SD card with buildroot file-system, I see USB hub is not getting detected. I understand some of the modules are not loaded in this case. Do I need to load a set of modules in sequence during the system boot using a script?

Waiting for your inputs,

Thank & regards

Vamshi G.

Hi Yordan,

Any inputs on my previous response would be a great help.

Waiting for your inputs. Thanks in advance.

Hi Yordan,

Thanks for your response, I see the following list of modules installed after booting the pre-built images on uSD card.
Module Size Used by
bluetooth 314427 2
ipv6 319670 26
gdbserverproxy 4597 0
cryptodev 36165 1
cmemk 30509 0
usb_storage 46211 0
xhci_plat_hcd 4517 0
xhci_hcd 102954 1 xhci_plat_hcd
usbcore 191845 3 usb_storage,xhci_plat_hcd,xhci_hcd
dwc3 60550 0
joydev 8618 0
rpmsg_rpc 19680 0
virtio_rpmsg_bus 12427 1 rpmsg_rpc
udc_core 11572 1 dwc3
ahci_platform 2880 1
libahci_platform 8445 1 ahci_platform
evdev 9585 3
libahci 27461 2 libahci_platform,ahci_platform
gpio_keys 8446 0
st_drv 18535 0
omapdrm_pvr 343250 0
extcon_usb_gpio 2842 0
libata 195836 3 libahci,libahci_platform,ahci_platform
leds_gpio 3497 0
snd_soc_simple_card 7015 0
snd_soc_omap_hdmi_audio 4541 0
omap_wdt 4121 0
phy_omap_usb2 5693 2
rtc_palmas 5019 0
palmas_pwrbutton 3483 0
extcon_palmas 5509 0
ti_vip 25729 0
pixcir_i2c_ts 6695 0
mt9t11x 14669 0
snd_soc_tlv320aic3x 41480 1
rtc_ds1307 9182 0
ti_vpe 42041 0
dwc3_omap 4516 0
ti_vpdma 14682 2 ti_vip,ti_vpe
extcon 13349 4 dwc3,extcon_palmas,dwc3_omap,extcon_usb_gpio
rtc_omap 7449 0
omap_rng 4533 0
rng_core 8050 2 omap_rng
debugss_kmodule 6702 0
omap_remoteproc 7509 4
remoteproc 27139 2 omap_remoteproc,rpmsg_rpc
virtio 7364 2 remoteproc,virtio_rpmsg_bus
virtio_ring 11848 2 remoteproc,virtio_rpmsg_bus
root@am57xx-evm:~#


Please let me know what all the modules sufficient for USB 3.0 hub for attaching SCSI devices.

Thanks & Regards,
Vamshi G.