Hi Joel,
On Mon, Jan 27 2020, Joel Johnson wrote:
> While newer Linux kernels provide autoconfiguration of SFP, provide
> an option for setting in U-Boot Kconfig for use prior to booting.
>
> Signed-off-by: Joel Johnson <mrj...@lixil.net>
>
> ---
>
> v2 changes:
> - fixed help indentation
> v3 changes:
> - none
> v4 changes:
> - adjust static SerDes configuration at runtime instead of #ifdef
>
> ---
> board/solidrun/clearfog/Kconfig | 7 +++++++
> board/solidrun/clearfog/clearfog.c | 3 +++
> 2 files changed, 10 insertions(+)
>
> diff --git a/board/solidrun/clearfog/Kconfig b/board/solidrun/clearfog/Kconfig
> index 936d5918f8..c910e17093 100644
> --- a/board/solidrun/clearfog/Kconfig
> +++ b/board/solidrun/clearfog/Kconfig
> @@ -15,4 +15,11 @@ config TARGET_CLEARFOG_BASE
> detection via additional EEPROM hardware. This option enables
> selecting
> the Base variant for older hardware revisions.
>
> +config CLEARFOG_SFP_25GB
> + bool "Enable 2.5 Gbps mode for SFP"
> + help
> + Set the SFP module connection to support 2.5 Gbps transfer speed for
> the
> + SGMII connection (requires a supporting SFP). By default, transfer
> speed
> + of 1.25 Gbps is used, suitable for a more common 1 Gbps SFP module.
> +
> endmenu
> diff --git a/board/solidrun/clearfog/clearfog.c
> b/board/solidrun/clearfog/clearfog.c
> index 4019e37016..6c5b9a784f 100644
> --- a/board/solidrun/clearfog/clearfog.c
> +++ b/board/solidrun/clearfog/clearfog.c
> @@ -59,6 +59,9 @@ void config_static_serdes_map(void)
> board_serdes_map[4].serdes_speed = SERDES_SPEED_5_GBPS;
> board_serdes_map[4].serdes_mode = SERDES_DEFAULT_MODE;
> }
> +
> + if (IS_ENABLED(CONFIG_CLEARFOG_SFP_25GB))
> + board_serdes_map[5].serdes_speed = SERDES_SPEED_3_125_GBPS;
config_static_serdes_map() is not called only when TLV EEPROM is
present. So CONFIG_CLEARFOG_SFP_25GB has no effect in that case. This
code should move to hws_board_topology_load() to avoid that.
baruch
> }
>
> int hws_board_topology_load(struct serdes_map **serdes_map_array, u8 *count)
--
http://baruch.siach.name/blog/ ~. .~ Tk Open Systems
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