Re: [PATCH 05/10] arm: mvebu: clearfog: Add option for 2.5 Gbps SFP

Hi Joel,

On Sat, Jan 11 2020, Joel Johnson wrote:

Signed-off-by: Joel Johnson mrjoel@lixil.net

board/solidrun/clearfog/Kconfig | 7 +++++++ board/solidrun/clearfog/clearfog.c | 4 ++++ 2 files changed, 11 insertions(+)

diff --git a/board/solidrun/clearfog/Kconfig b/board/solidrun/clearfog/Kconfig index 30f53508c2..53f01daf7a 100644 --- a/board/solidrun/clearfog/Kconfig +++ b/board/solidrun/clearfog/Kconfig @@ -24,4 +24,11 @@ config CLEARFOG_CON2_SATA modules, but the desired protocol must be configured at build time since it affects the SerDes topology layout.

+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.
  

Note that recent Linux kernels support run-time SFP detection and serdes speed configuration. This patch is still useful for older kernels.

baruch

endmenu diff --git a/board/solidrun/clearfog/clearfog.c b/board/solidrun/clearfog/clearfog.c index 4f51b19ce9..247785ac56 100644 --- a/board/solidrun/clearfog/clearfog.c +++ b/board/solidrun/clearfog/clearfog.c @@ -44,7 +44,11 @@ static struct serdes_map board_serdes_map[] = { #else {PEX2, SERDES_SPEED_5_GBPS, PEX_ROOT_COMPLEX_X1, 0, 0}, #endif +#if defined (CONFIG_CLEARFOG_SFP_25GB)

• {SGMII2, SERDES_SPEED_3_125_GBPS, SERDES_DEFAULT_MODE, 0, 0},

+#else {SGMII2, SERDES_SPEED_1_25_GBPS, SERDES_DEFAULT_MODE, 0, 0}, +#endif };

int hws_board_topology_load(struct serdes_map **serdes_map_array, u8 *count)

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