[U-Boot] Xilinx Zed Board resets with Master
Michal Simek
monstr at monstr.eu
Thu Mar 27 13:05:03 CET 2014
On 03/27/2014 01:01 PM, Michal Simek wrote:
> Hi Tim,
>
> On 03/27/2014 11:33 AM, Tim Sander wrote:
>> Hi Michael, Jagan
>>
>> Thanks for your replies.
>>> On Thu, Mar 27, 2014 at 1:51 PM, Michal Simek <monstr at monstr.eu> wrote:
>>>> Hi,
>>>>
>>>> On 03/27/2014 09:08 AM, Tim Sander wrote:
>>>>> Hi
>>>>>
>>>>> As i have seen that the Xilinx support has entered master i just tried to
>>>>> boot it on a Xilinx Zynx Zedboard Rev. D. The build works with the
>>>>> xilinx git tree so i am pretty confident that its not some issues with
>>>>> bootgen or the embedded fpga image.
>>>>>
>>>>> The board loads the fpga which can be seen by the blue "done" led of the
>>>>> ZedBoard. But then the LED turns off and about after a second or so it
>>>>> just
>>>>> lights up shortly again to turn off again. So it seems as if the board is
>>>>> somehow caught in a reboot loop. Any ideas what might be wrong?
>>>>>
>>>>> I am building with:
>>>>> export PATH=~/xilinx/SDK/2013.3/gnu/arm/lin/bin:$PATH
>>>>> export CROSS_COMPILE=arm-xilinx-linux-gnueabi-
>>>>> make clean
>>>>> make distclean
>>>>> make zynq_zed_config
>>>>> make
>>>>>
>>>>> The BOOT.BIN is build
>>>>> xilinx/SDK/2013.3/bin/lin64/bootgen -image u-boot.bif -w on -o BOOT.BIN
>>>>>
>>>>> And u-boot.bif looks like that:
>>>>> the_ROM_image:
>>>>> {
>>>>>
>>>>> [bootloader]zynq_fsbl_0.elf
>>>>>
>>>>> system.bit
>>>>> u-boot.elf
>> I have added the zynq-zed.dtb file here, as i was not sure where else to put
>> it...
>
> I have just tested on zedboard rev-C I have here
>
> Head u-boot commit commit
> commit 2c072c958bb544c72f0e848375803dbd6971f022
> Author: Simon Glass <sjg at chromium.org>
> Date: Thu Feb 27 13:26:25 2014 -0700
>
> sandbox: config: Enable cros_ec emulation and related items
>
> Enable the Chrome OS EC emulation for sandbox along with LCD, sound
> expanded GPIOs and a few other options to make this work correctly.
>
> Reviewed-by: Simon Glass <sjg at chromium.org>
> Tested-by: Che-Liang Chiou <clchiou at chromium.org>
> Signed-off-by: Simon Glass <sjg at chromium.org>
>
> Copy attached file over this one
> arch/arm/dts/zynq-zed.dts
>
> export ARCH=arm
> export CROSS_COMPILE=arm-xilinx-linux-gnueabi-
> make zynq_zed_config
> make -j
>
> run xmd
>
> connect arm hw
> dow zynq_fsbl.elf
> run
> stop
> dow -data u-boot-dtb.bin 0x4000000
> rwr pc 0x4000000
> con
> exit
>
> And you should see something like this on your console
>
> U-Boot 2014.04-rc2-00061-g2c072c9-dirty (Mar 27 2014 - 12:47:39)
>
> I2C: ready
> Memory: ECC disabled
> DRAM: 512 MiB
> MMC: zynq_sdhci: 0
> Using default environment
>
> In: serial
> Out: serial
> Err: serial
> Model: Xilinx Zynq
> Net: Gem.e000b000
> Warning: failed to set MAC address
>
> Hit any key to stop autoboot: 0
> zynq-uboot>
>
>
>
>>>>> }
>>>>
>>>> mainline u-boot support is using configuration based on dts files
>>>> (OF_CONTROL) And because our DTSes are almost empty in mainline I expect
>>>> you are not able to see anything from u-boot.
>>>> I recommend you to copy dts file from xilinx kernel and then use
>>>> u-boot-dtb version.
>> Ok i tried this, and now the reboot loops seems to be gone. The blue "done"
>> led now only switches "on" one time and stays on. Unfortunatly i still don't
>> see anything on the console in this case.
>> I can see that the registers
>> lr 0x1d70 0x1d70
>> pc 0xcf6c 0xcf6c
>> But according to the u-boot map there is nothing and i am not sure how to
>> get information about the relocation without u-boot command line.
>>
>>>> Or the second option is to remove OF_CONTROL from
>>>> zynq-common.h file and then I hope you should be able to see something on
>>>> console.
>> Removeing OF_CONTROL gives a compile error:
>> xilinx/zynq/u-boot-xlnx/arch/arm/lib/board.c:633: undefined reference to
>> `checkboard'
>> lib/built-in.o: In function `rsa_verify_with_keynode':
>> xilinx/zynq/u-boot-xlnx/lib/rsa/rsa-verify.c:284: undefined reference to
>> `fdtdec_get_int'
>
> More things has changed recently.
> If you do these changes then non DT configuration is performed.
>
> diff --git a/board/xilinx/zynq/board.c b/board/xilinx/zynq/board.c
> index 485a5e4..559ef3d 100644
> --- a/board/xilinx/zynq/board.c
> +++ b/board/xilinx/zynq/board.c
> @@ -62,6 +62,11 @@ int board_init(void)
> return 0;
> }
>
> +int checkboard(void)
> +{
> + return 0;
> +}
> +
> int board_late_init(void)
> {
> switch ((zynq_slcr_get_boot_mode()) & ZYNQ_BM_MASK) {
> diff --git a/include/configs/zynq-common.h b/include/configs/zynq-common.h
> index 731e69b..8a63cd5 100644
> --- a/include/configs/zynq-common.h
> +++ b/include/configs/zynq-common.h
> @@ -200,14 +200,8 @@
> #define CONFIG_FIT_VERBOSE 1 /* enable fit_format_{error,warning}() */
>
> /* FDT support */
> -#define CONFIG_OF_CONTROL
> -#define CONFIG_OF_SEPARATE
> #define CONFIG_DISPLAY_BOARDINFO_LATE
>
> -/* RSA support */
> -#define CONFIG_FIT_SIGNATURE
> -#define CONFIG_RSA
> -
> /* Extend size of kernel image for uncompression */
> #define CONFIG_SYS_BOOTM_LEN (20 * 1024 * 1024)
>
I was too fast for static configuration you can just removed this.
(checkboard() function is required by CONFIG_DISPLAY_BOARDINFO_LATE)
which I have disabled here.
diff --git a/include/configs/zynq-common.h b/include/configs/zynq-common.h
index 731e69b..0d5a145 100644
--- a/include/configs/zynq-common.h
+++ b/include/configs/zynq-common.h
@@ -199,15 +199,6 @@
#define CONFIG_FIT
#define CONFIG_FIT_VERBOSE 1 /* enable fit_format_{error,warning}() */
-/* FDT support */
-#define CONFIG_OF_CONTROL
-#define CONFIG_OF_SEPARATE
-#define CONFIG_DISPLAY_BOARDINFO_LATE
-
-/* RSA support */
-#define CONFIG_FIT_SIGNATURE
-#define CONFIG_RSA
-
/* Extend size of kernel image for uncompression */
#define CONFIG_SYS_BOOTM_LEN (20 * 1024 * 1024)
Thanks,
Michal
--
Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel - Microblaze cpu - http://www.monstr.eu/fdt/
Maintainer of Linux kernel - Xilinx Zynq ARM architecture
Microblaze U-BOOT custodian and responsible for u-boot arm zynq platform
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