[U-Boot] U-Boot

Mon Feb 12 15:28:01 UTC 2018

On 02/12/2018 04:13 PM, Mariano Coromac wrote:
> Oh ok.
> My main problem is that I DO have debug_uart but I don't have U-Boot
> main console.
> I already have the configuration on my defconf for the debug UART like this:
> CONFIG_DM=y
> CONFIG_DM_SERIAL=y
> CONFIG_DEBUG_UART=y
> CONFIG_DEBUG_UART_ATMEL=y
> CONFIG_DEBUG_UART_BASE=0xf8038200
> CONFIG_DEBUG_UART_CLOCK=58000000
> CONFIG_DEBUG_UART_BOARD_INIT=y
> CONFIG_DEBUG_UART_ANNOUNCE=y
> I cloned from the github repository
> *https://github.com/linux4sam/u-boot-at91*
> My configuration was derived from the sama5d2_xplained board because I'm
> working with a custom one.

If you used vendor fork of U-Boot, please ask vendor, the U-Boot
upstream repo is at [1]. You should rather use that. Adding more Atmel
people on CC, they should be able to help.

You should also tell us which version (or even better, which commit in
which repo) do you use. That's important.

Also please stop top-posting.

[1] http://git.denx.de/?p=u-boot.git;a=summary

> On Mon, Feb 12, 2018 at 8:59 AM, Marek Vasut <marex at denx.de
> <mailto:marex at denx.de>> wrote:
> 
>     On 02/12/2018 03:52 PM, Mariano Coromac wrote:
>     > Hello, I was hoping you could help me out with something. I just have 2
>     > main questions. I am using a SAMA5D27 and I've managed to port
>     > AT91Bootloader and I'm currently on U-Boot
> 
>     U-Boot SPL can bring SAMA5D2 up, you don't need the AT91 bootloader.
> 
>     > 1. I am trying to use FLEXCOM1 (UART) as the main console of U-Boot but
>     > haven't been able to find any documentation saying where or how U-Boot
>     > specifies the console port.
> 
>     $ git grep DEBUG_UART configs/sama5d2*
>     configs/sama5d27_som1_ek_mmc_defconfig:CONFIG_DEBUG_UART=y
>     configs/sama5d27_som1_ek_mmc_defconfig:CONFIG_DEBUG_UART_ATMEL=y
>     configs/sama5d27_som1_ek_mmc_defconfig:CONFIG_DEBUG_UART_BASE=0xf8020000
>     configs/sama5d27_som1_ek_mmc_defconfig:CONFIG_DEBUG_UART_CLOCK=82000000
>     configs/sama5d27_som1_ek_mmc_defconfig:CONFIG_DEBUG_UART_BOARD_INIT=y
>     configs/sama5d27_som1_ek_mmc_defconfig:CONFIG_DEBUG_UART_ANNOUNCE=y
> 
>     would indicate there's a debug uart which you can use.
> 
>     I'm adding atmel maintainer to CC and dropping dead contacts.
> 
>     > 2. When U-Boot tries to boot it gives me these errors:
>     >
>     > bind node sdio-host at a0000000
>     >    - attempt to match compatible string 'atmel,sama5d2-sdhci'
>     > No match for node 'sdio-host at a0000000'
>     > bind node sdio-host at b0000000
>     >    - attempt to match compatible string 'atmel,sama5d2-sdhci'
>     > No match for node 'sdio-host at b0000000'
>     > bind node apb
>     >    - attempt to match compatible string 'simple-bus'
>     >    - found match at 'generic_simple_bus'
>     > bind node pmc at f0014000
>     >    - attempt to match compatible string 'atmel,sama5d2-pmc'
>     >    - found match at 'at91-pmc'
>     > bind node mainck
>     >    - attempt to match compatible string 'atmel,at91sam9x5-clk-main'
>     >    - found match at 'at91sam9x5-main-osc-clk'
>     > bind node pllack at 0
>     >    - attempt to match compatible string 'atmel,sama5d3-clk-pll'
>     >    - found match at 'at91-plla-clk'
>     > bind node utmick
>     >    - attempt to match compatible string 'atmel,at91sam9x5-clk-utmi'
>     > No match for node 'utmick'
>     > bind node masterck
>     >    - attempt to match compatible string 'atmel,at91sam9x5-clk-master'
>     >    - found match at 'at91-master-clk'
>     > bind node h32mxck
>     >    - attempt to match compatible string 'atmel,sama5d4-clk-h32mx'
>     > No match for node 'h32mxck'
>     > bind node periph32ck
>     >    - attempt to match compatible string
>     'atmel,at91sam9x5-clk-peripheral'
>     >    - found match at 'sam9x5-periph-clk'
>     > Cannot create device named 'uart1_clk at 25' (err=-12)
>     > Error binding driver 'sam9x5-periph-clk': -12
>     > bind node periph64ck
>     >    - attempt to match compatible string
>     'atmel,at91sam9x5-clk-peripheral'
>     >    - found match at 'sam9x5-periph-clk'
>     > Error binding driver 'sam9x5-periph-clk': -12
>     > bind node gck
>     >    - attempt to match compatible string 'atmel,sama5d2-clk-generated'
>     > No match for node 'gck'
>     > Some drivers failed to bind
>     > Error binding driver 'at91-pmc': -12
>     > bind node spi at f8000000
>     >    - attempt to match compatible string 'atmel,at91rm9200-spi'
>     > No match for node 'spi at f8000000'
>     > bind node serial at f8038200
>     >    - attempt to match compatible string 'atmel,at91sam9260-usart'
>     >    - found match at 'serial_atmel'
>     > Error binding driver 'serial_atmel': -12
>     > bind node gpio at fc038000
>     >    - attempt to match compatible string 'atmel,sama5d2-gpio'
>     >    - found match at 'gpio_atmel_pio4'
>     > Error binding driver 'gpio_atmel_pio4': -12
>     > Some drivers failed to bind
>     > Error binding driver 'generic_simple_bus': -12
>     > Some drivers failed to bind
>     > Error binding driver 'generic_simple_bus': -12
>     > Some drivers failed to bind
>     > initcall sequence 26f20864 failed at call 26f073e4 (err=-12)
>     > ### ERROR ### Please RESET the board ###
>     >
>     > NOTE: On my lists.c file I changed all the "dm_debug" for "dm_warn"
>     > because the debug uart is the only one that's responding.
>     > Any help or guidance would be really appreciated.
> 
>     Seems like some drivers are disabled.
> 
>     Which version of U-Boot do you use ?
> 
>     What platform did you derive your configuration from ?
> 
>     --
>     Best regards,
>     Marek Vasut
> 
> 
> 
> 
> -- 
> Mariano Coromac	<https://gps.gt/>
> I&D of Electronics Engineer
> mcoromac at stsa.info <mailto:mcoromac at stsa.info>
> +502 41544712
> www.gps.gt <http://www.gps.gt>	<http://facebook.com/startracksa>
> 

-- 
Best regards,
Marek Vasut