JTAG'ing firmware into imx28 Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern) 2019 Community Moderator Election Results Why I closed the “Why is Kali so hard” questionBooting over the LAN using ubootHow do I load initrd into memory to be passed to kernel when using kexec?Booting using initramfs instead of uramdiskuboot & uImage & linux boot processuboot write kernel into mmc partitionGetting U-Boot to load dtb from FIT imageProblems booting uncompressed linux kernel on PPCAccess the filesystem as the root userBackup Nand Flash memory areaUboot Hangs when Initrd size increased in FIT image
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JTAG'ing firmware into imx28
Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)
2019 Community Moderator Election Results
Why I closed the “Why is Kali so hard” questionBooting over the LAN using ubootHow do I load initrd into memory to be passed to kernel when using kexec?Booting using initramfs instead of uramdiskuboot & uImage & linux boot processuboot write kernel into mmc partitionGetting U-Boot to load dtb from FIT imageProblems booting uncompressed linux kernel on PPCAccess the filesystem as the root userBackup Nand Flash memory areaUboot Hangs when Initrd size increased in FIT image
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;
My goal here is to load a custom kernel and initramfs into the memory of the wink hub 1 based on imx28 dev board and boot it using the bootm command from u-boot shell.
So, I downloaded the u-boot 2014.01 source code and built it from scratch using the patch provided here then I downloaded the latest buildroot and build the kernel and root file system along with initramfs for the imx28 board.
Using JTAG I'm able to load the u-boot at 0x40000100, kernel at 0x42000000
and initramfs at 0x42300000
but when I pass these addresses into the u-boot shell and hit bootm the kernel hangs after decompressing and nothing happens...
I thought there might be the problem with the kernel but even when I pass just the kernel address without loading the custom one ( i.e. loading the kernel present in the nand memory ) in the RAM still the kernel hangs and does not boot it only works well with the boot (bootcmd)
command.
This is the output when trying to load the kernel manually from a memory address nothing happens after decompression.
=> bootm 42000000 42300000
## Booting kernel from Legacy Image at 42000000 ...
Image Name: Linux-2.6.35.3-flex-dvt
Created: 2014-04-30 3:15:35 UTC
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 1928460 Bytes = 1.8 MiB
Load Address: 40008000
Entry Point: 40008000
Verifying Checksum ... OK
## Loading init Ramdisk from Legacy Image at 42300000 ...
Image Name: Root Filesystem
Created: 2019-01-12 14:23:44 UTC
Image Type: ARM Linux RAMDisk Image (uncompressed)
Data Size: 893637 Bytes = 872.7 KiB
Load Address: 40800000
Entry Point: 40800000
Verifying Checksum ... OK
Loading Kernel Image ... OK
Starting kernel ...
Uncompressing Linux... done, booting the kernel.
But on the u-boot shell just after hitting boot
command it boots and everything works fine.
I don't know what I'm doing wrong I've checked the /include/configs/mx28evk.h
for the kernel uImage, initramfs & fdt addresses and everything seems right.
embedded hardware boot-loader u-boot
add a comment |
My goal here is to load a custom kernel and initramfs into the memory of the wink hub 1 based on imx28 dev board and boot it using the bootm command from u-boot shell.
So, I downloaded the u-boot 2014.01 source code and built it from scratch using the patch provided here then I downloaded the latest buildroot and build the kernel and root file system along with initramfs for the imx28 board.
Using JTAG I'm able to load the u-boot at 0x40000100, kernel at 0x42000000
and initramfs at 0x42300000
but when I pass these addresses into the u-boot shell and hit bootm the kernel hangs after decompressing and nothing happens...
I thought there might be the problem with the kernel but even when I pass just the kernel address without loading the custom one ( i.e. loading the kernel present in the nand memory ) in the RAM still the kernel hangs and does not boot it only works well with the boot (bootcmd)
command.
This is the output when trying to load the kernel manually from a memory address nothing happens after decompression.
=> bootm 42000000 42300000
## Booting kernel from Legacy Image at 42000000 ...
Image Name: Linux-2.6.35.3-flex-dvt
Created: 2014-04-30 3:15:35 UTC
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 1928460 Bytes = 1.8 MiB
Load Address: 40008000
Entry Point: 40008000
Verifying Checksum ... OK
## Loading init Ramdisk from Legacy Image at 42300000 ...
Image Name: Root Filesystem
Created: 2019-01-12 14:23:44 UTC
Image Type: ARM Linux RAMDisk Image (uncompressed)
Data Size: 893637 Bytes = 872.7 KiB
Load Address: 40800000
Entry Point: 40800000
Verifying Checksum ... OK
Loading Kernel Image ... OK
Starting kernel ...
Uncompressing Linux... done, booting the kernel.
But on the u-boot shell just after hitting boot
command it boots and everything works fine.
I don't know what I'm doing wrong I've checked the /include/configs/mx28evk.h
for the kernel uImage, initramfs & fdt addresses and everything seems right.
embedded hardware boot-loader u-boot
add a comment |
My goal here is to load a custom kernel and initramfs into the memory of the wink hub 1 based on imx28 dev board and boot it using the bootm command from u-boot shell.
So, I downloaded the u-boot 2014.01 source code and built it from scratch using the patch provided here then I downloaded the latest buildroot and build the kernel and root file system along with initramfs for the imx28 board.
Using JTAG I'm able to load the u-boot at 0x40000100, kernel at 0x42000000
and initramfs at 0x42300000
but when I pass these addresses into the u-boot shell and hit bootm the kernel hangs after decompressing and nothing happens...
I thought there might be the problem with the kernel but even when I pass just the kernel address without loading the custom one ( i.e. loading the kernel present in the nand memory ) in the RAM still the kernel hangs and does not boot it only works well with the boot (bootcmd)
command.
This is the output when trying to load the kernel manually from a memory address nothing happens after decompression.
=> bootm 42000000 42300000
## Booting kernel from Legacy Image at 42000000 ...
Image Name: Linux-2.6.35.3-flex-dvt
Created: 2014-04-30 3:15:35 UTC
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 1928460 Bytes = 1.8 MiB
Load Address: 40008000
Entry Point: 40008000
Verifying Checksum ... OK
## Loading init Ramdisk from Legacy Image at 42300000 ...
Image Name: Root Filesystem
Created: 2019-01-12 14:23:44 UTC
Image Type: ARM Linux RAMDisk Image (uncompressed)
Data Size: 893637 Bytes = 872.7 KiB
Load Address: 40800000
Entry Point: 40800000
Verifying Checksum ... OK
Loading Kernel Image ... OK
Starting kernel ...
Uncompressing Linux... done, booting the kernel.
But on the u-boot shell just after hitting boot
command it boots and everything works fine.
I don't know what I'm doing wrong I've checked the /include/configs/mx28evk.h
for the kernel uImage, initramfs & fdt addresses and everything seems right.
embedded hardware boot-loader u-boot
My goal here is to load a custom kernel and initramfs into the memory of the wink hub 1 based on imx28 dev board and boot it using the bootm command from u-boot shell.
So, I downloaded the u-boot 2014.01 source code and built it from scratch using the patch provided here then I downloaded the latest buildroot and build the kernel and root file system along with initramfs for the imx28 board.
Using JTAG I'm able to load the u-boot at 0x40000100, kernel at 0x42000000
and initramfs at 0x42300000
but when I pass these addresses into the u-boot shell and hit bootm the kernel hangs after decompressing and nothing happens...
I thought there might be the problem with the kernel but even when I pass just the kernel address without loading the custom one ( i.e. loading the kernel present in the nand memory ) in the RAM still the kernel hangs and does not boot it only works well with the boot (bootcmd)
command.
This is the output when trying to load the kernel manually from a memory address nothing happens after decompression.
=> bootm 42000000 42300000
## Booting kernel from Legacy Image at 42000000 ...
Image Name: Linux-2.6.35.3-flex-dvt
Created: 2014-04-30 3:15:35 UTC
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 1928460 Bytes = 1.8 MiB
Load Address: 40008000
Entry Point: 40008000
Verifying Checksum ... OK
## Loading init Ramdisk from Legacy Image at 42300000 ...
Image Name: Root Filesystem
Created: 2019-01-12 14:23:44 UTC
Image Type: ARM Linux RAMDisk Image (uncompressed)
Data Size: 893637 Bytes = 872.7 KiB
Load Address: 40800000
Entry Point: 40800000
Verifying Checksum ... OK
Loading Kernel Image ... OK
Starting kernel ...
Uncompressing Linux... done, booting the kernel.
But on the u-boot shell just after hitting boot
command it boots and everything works fine.
I don't know what I'm doing wrong I've checked the /include/configs/mx28evk.h
for the kernel uImage, initramfs & fdt addresses and everything seems right.
embedded hardware boot-loader u-boot
embedded hardware boot-loader u-boot
edited Jan 13 at 10:42
Rui F Ribeiro
42.1k1483142
42.1k1483142
asked Jan 13 at 9:46
r00tb3r00tb3
164
164
add a comment |
add a comment |
1 Answer
1
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votes
I've figured out what the problem was.
I had enabled low level debugging and had redirected all printk's to Embedded ICE UART port so it would not show any output on the UART console.
[ ] Kernel low-level debugging functions
[ ] Early printk (NEW)
[ ] Kernel low-level debugging via EmbeddedICE DCC channel (NEW)
keep it unselected as above.
Regards,
Amit.
add a comment |
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1 Answer
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active
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
I've figured out what the problem was.
I had enabled low level debugging and had redirected all printk's to Embedded ICE UART port so it would not show any output on the UART console.
[ ] Kernel low-level debugging functions
[ ] Early printk (NEW)
[ ] Kernel low-level debugging via EmbeddedICE DCC channel (NEW)
keep it unselected as above.
Regards,
Amit.
add a comment |
I've figured out what the problem was.
I had enabled low level debugging and had redirected all printk's to Embedded ICE UART port so it would not show any output on the UART console.
[ ] Kernel low-level debugging functions
[ ] Early printk (NEW)
[ ] Kernel low-level debugging via EmbeddedICE DCC channel (NEW)
keep it unselected as above.
Regards,
Amit.
add a comment |
I've figured out what the problem was.
I had enabled low level debugging and had redirected all printk's to Embedded ICE UART port so it would not show any output on the UART console.
[ ] Kernel low-level debugging functions
[ ] Early printk (NEW)
[ ] Kernel low-level debugging via EmbeddedICE DCC channel (NEW)
keep it unselected as above.
Regards,
Amit.
I've figured out what the problem was.
I had enabled low level debugging and had redirected all printk's to Embedded ICE UART port so it would not show any output on the UART console.
[ ] Kernel low-level debugging functions
[ ] Early printk (NEW)
[ ] Kernel low-level debugging via EmbeddedICE DCC channel (NEW)
keep it unselected as above.
Regards,
Amit.
answered 17 hours ago
r00tb3r00tb3
164
164
add a comment |
add a comment |
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-boot-loader, embedded, hardware, u-boot