On 07.10.2015 20:01, Jagan Teki wrote:
On 7 October 2015 at 21:29, Simon Glass <s...@chromium.org> wrote:
Hi,
Hi,
there are some news on this.
On 7 October 2015 at 13:50, Hannes Schmelzer <han...@schmelzer.or.at> wrote:
hi folks,
i am not very familar with driver model until now and so i've a question.
I'm trying to bring up my Zynq ZC702 evalboard using driver-model during SPL
stage (because QSPI needs this).
I simply switched on "Driver Model for SPL" within Kconfig and compiled.
This ends up in:
U-Boot SPL 2015.10-rc4-00050-g996ec1d-dirty (Oct 07 2015 - 13:57:32)
spl:board_init_r()
using memory 0xffff10c0-0xffff20c0 for malloc()
spl_init()
dm_init() failed: -2
dm_init_and_scan() returned error -2
### ERROR ### Please RESET the board ###
i had a look into drivers/core/root.c and saw that
device_bind_by_name(NULL, false, &root_info, &DM_ROOT_NON_CONST);
fails.
Any idea why the root-driver cannot be found ?
Maybe there are some switched need to be switched on too.
Is there any chance that your SPL does not have the linker lists set
up correctly?
See this code in the standard ARM u-boot-spl.lds:
#ifdef CONFIG_SPL_DM
.u_boot_list : {
KEEP(*(SORT(.u_boot_list_*_driver_*)));
KEEP(*(SORT(.u_boot_list_*_uclass_*)));
}
#endif
I think these changes still in queue[1] I'm keep sending remainders,
there is on PR blocks these changes[2]
[1]
http://git.denx.de/?p=u-boot/u-boot-dm.git;a=shortlog;h=refs/heads/zynq-working
[2] https://patchwork.ozlabs.org/patch/517709/
Many thanks for this.
I've now branched from u-boot-dm.git/zynq-working2 and then merged
u-boot-spi/master into it.
After a few merge conflicts i'am able to build u-boot and boot it from
SD with working DM support during SPL and QSPI support.
The next step was/is burning this file into the QSPI flash and boot from it.
burning was now problem, but boot ends up with:
U-Boot SPL 2015.10-rc4-00101-gb6dcb3f-dirty (Oct 08 2015 - 08:42:53)
qspi boot
boot device - 8
uclass_find_device_by_seq: 0 0
- not found
uclass_find_device_by_seq: 1 0
- not found
Invalid bus 0 (err=-19)
SPI probe failed.
### ERROR ### Please RESET the board ###
maybe there is yet another switch, which needs to be turned on.
Subject of suspicion is currently "support simple-bus driver in SPL".
But if i compile with this option,
boot ends up with:
U-Boot SPL 2015.10-rc4-00101-gb6dcb3f-dirty (Oct 08 2015 - 09:01:35)
mmc boot
boot device - 1
mmc_init: 0, time 58
spl: mmc boot mode: fs
reading system.dtb
Error: allocating memory
spl_load_image_fat_os: error reading image system.dtb, err - -1
reading u-boot-dtb.img
Error: allocating memory
spl_load_image_fat: error reading image u-boot-dtb.img, err - -1
spl: mmc: no boot mode left to try
### ERROR ### Please RESET the board ###
Any ideas?
many thanks and best regards,
Hannes
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