problem with eMMC boot on arndale board
Hi,
does anyone has tried eMMC boot on Arndale board?
I copied BL1, SPL and u-boot to eMMC, like I do on SD card but it does not boot at all.
Note that once booted on SD card, I get some errors while accessing eMMC.
"mmc dev 0" returns:
dwmci_send_cmd: DATA ERROR!
switch to partitions #0, OK
mmc0(part 0) is current device
"mmc info" returns:
Device: EXYNOS DWMMC
Manufacturer ID: 15
OEM: 100
Name: M4G1F
Tran Speed: 52000000
Rd Block Len: 512
MMC version 4.41
High Capacity: Yes
Capacity: 3.7 GiB
Bus Width: 4-bit
I think it does not boot because of this problem on eMMC.
Is there anything I could try to fix it?
Guillaume
Quoted 3 lines · Guillaume Gardet
Hi,
does anyone has tried eMMC boot on Arndale board?
Other than the image which was in mine when it arrived, no, I've only booted from the removable SD/MMC device.
Quoted 1 line
Note that once booted on SD card, I get some errors while accessing eMMC.
I've just tried these and FWIW I see the same things.
AFAICT the emmc works well enough to save/load the environment, but other than that I've not used it much.
Quoted 1 line
Is there anything I could try to fix it?
Sorry, no ideas here :-(
Ian.
Hi
Quoted 12 lines · Ian Campbell
Quoted 3 lines · Guillaume Gardet
Hi,
does anyone has tried eMMC boot on Arndale board?
Other than the image which was in mine when it arrived, no, I've only booted from the removable SD/MMC device.
Quoted 1 line
Note that once booted on SD card, I get some errors while accessing eMMC.
I've just tried these and FWIW I see the same things.
I suggest to test if it's an error or timeout. If you go some line up I have seen some retry to read
this register but I don't have any documentation of the cpu. It's nice already to have a patch that change DATA ERROR!
Michael
Quoted 13 lines
AFAICT the emmc works well enough to save/load the environment, but other than that I've not used it much.
Quoted 1 line
Is there anything I could try to fix it?
Sorry, no ideas here :-(
Ian.
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Signature · 4 lines
| Michael Nazzareno Trimarchi Amarula Solutions BV | | COO - Founder Cruquiuskade 47 | | +31(0)851119172 Amsterdam 1018 AM NL | | [`as] http://www.amarulasolutions.com |
Quoted 25 lines · On Fri, 17 Oct 2014 12:20:44 +0200 Guillaume Gardet <[email protected]>…
Hi,
does anyone has tried eMMC boot on Arndale board?
I copied BL1, SPL and u-boot to eMMC, like I do on SD card but it does not boot at all.
Note that once booted on SD card, I get some errors while accessing eMMC.
"mmc dev 0" returns:
dwmci_send_cmd: DATA ERROR!
switch to partitions #0, OK
mmc0(part 0) is current device"mmc info" returns:
Device: EXYNOS DWMMC
Manufacturer ID: 15
OEM: 100
Name: M4G1F
Tran Speed: 52000000
Rd Block Len: 512
MMC version 4.41
High Capacity: Yes
Capacity: 3.7 GiB
Bus Width: 4-bit
Quoted 1 line
I think it does not boot because of this problem on eMMC.
not necessarily.
Quoted 1 line
Is there anything I could try to fix it?
I'm not familiar with booting from eMMC on Arndale. But for newer eMMC (>= JEDEC 4.3) you have to configure a boot partition and enable access to it in the PARTITION_CONFIG register. The "partconf" subcommand of the mmc command can be used to do it. See also Table 2 in [1]. Then install the boot code to the selected boot partition and try again.
[1] http://www.micron.com/-/media/documents/products/technical%20note/nand%20flash/tn2918.pdf
HTH,
Anatolij