[U-Boot] [PATCH v4 0/4] Tegra: MMC: Add DT support for MMC to T20 boards

[Tom Warren]

Marc,

On Thu, Feb 14, 2013 at 3:48 PM, Marc Dietrich <marvin24 at gmx.de> wrote:
> Hi Tom,
>
> On Thursday 14 February 2013 14:03:57 Tom Warren wrote:
>> This patchset adds device-tree support to the Tegra MMC driver.
>> All device config is done via properties in the DT files instead
>> of hard-coded config options/function arguments.
>>
>> I've tested this on my Seaboard and everything works fine,
>> including card detect. For the other T20 boards, I've used
>> the Linux kernel DTS files for the sdhci nodes where there
>> wasn't one already, or expanded the info that was already
>> there. Everything builds fine, but I haven't tested anything
>> but Seaboard.
>
> unfortunately, this is still no go on PAZ00.
>
> U-Boot SPL 2013.01-00093-g206c157-dirty (Feb 14 2013 - 23:37:03)
>
>
> U-Boot 2013.01-00093-g206c157-dirty (Feb 14 2013 - 23:37:03)
>
> TEGRA20
> Board: Compal Paz00
> DRAM:  512 MiB
> MMC:   tegra_mmc_init entry
> tegra_mmc_init: count of sdhci nodes is 2
> process_nodes: count = 2
> mmc_get_config: node = 5772
> mmc_get_config: found controller at c8000600, width = 8, periph_id = 15
> do_mmc_init: index 0, bus width 8 pwr_gpio -1 cd_gpio -1
> do_mmc_init: bus width = 8
> mmc_get_config: node = 5244
> mmc_get_config: found controller at c8000000, width = 4, periph_id = 14
> do_mmc_init: index 1, bus width 4 pwr_gpio 169 cd_gpio 173
>  Power GPIO name = power-gpios
>  CD GPIO name = cd-gpios
> do_mmc_init: CD state = 0
> do_mmc_init: bus width = 4
> Tegra SD/MMC: 0, Tegra SD/MMC: 1
> tegra_mmc_getcd called, host->cd_gpio = 0x1FBCC044
> mmc_reset called
>
> ... so far so good
>
> # ext2ls mmc 1
> tegra_mmc_getcd called, host->cd_gpio = 0x1FBCC084
> mmc_reset called
> mmc_core_init: host version = 0
> mmc_set_ios: bus_width: 1, clock: 375000
> mmc_change_clock called
> mmc_change_clock: div = 8
> mmc_change_clock: clkcon = 00000405
> mmc_set_ios: hostctl = 00000000
> mmc_set_ios: bus_width: 1, clock: 375000
> mmc_change_clock called
> mmc_change_clock: div = 8
> mmc_change_clock: clkcon = 00000405
> mmc_set_ios: hostctl = 00000000
> mmc_send_cmd: called
> mmc_send_cmd_bounced called
> mmc_send_cmd_bounced: cmd->arg: 00000000
> mmc_send_cmd_bounced: cmd: 0
> mmc_send_cmd: called
> mmc_send_cmd_bounced called
> mmc_send_cmd_bounced: cmd->arg: 000001aa
> mmc_send_cmd_bounced: cmd: 8
> mmc_send_cmd_bounced: error: 010c8001 cmd 8
> mmc_send_cmd: called
> mmc_send_cmd_bounced called
> mmc_send_cmd_bounced: cmd->arg: 00000000
> mmc_send_cmd_bounced: cmd: 55
> mmc_send_cmd_bounced: error: 010c8001 cmd 55
> mmc_send_cmd: called
> mmc_send_cmd_bounced called
> mmc_send_cmd_bounced: cmd->arg: 00000000
> mmc_send_cmd_bounced: cmd: 2
> mmc_send_cmd_bounced: error: 00048001 cmd 2
> ** Bad device mmc 1 **
>
> any ideas?

I'm going to be gone for a few days, but I think Stephen agreed to
look into it. He has a PAZ00 board.

Thanks,

Tom
>
> Marc
>
>