Hi Stefan,
On Mon, Mar 23 2020, Stefan Roese wrote:
On 27.01.20 21:01, 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 mrjoel@lixil.net
v2 changes:
- fixed help indentation
v3 changes:
- none
v4 changes:
- adjust static SerDes configuration at runtime instead of #ifdef
v5 changes:
- make independent of runtime detection
board/solidrun/clearfog/Kconfig | 7 +++++++ board/solidrun/clearfog/clearfog.c | 5 +++++ 2 files changed, 12 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 theSGMII connection (requires a supporting SFP). By default, transfer speedof 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 c873d00905..064ce4e520 100644 --- a/board/solidrun/clearfog/clearfog.c +++ b/board/solidrun/clearfog/clearfog.c @@ -63,6 +63,11 @@ int hws_board_topology_load(struct serdes_map **serdes_map_array, u8 *count) { cf_read_tlv_data();
- /* Apply build configuration options before runtime configuration */
- if (IS_ENABLED(CONFIG_CLEARFOG_SFP_25GB))
board_serdes_map[5].serdes_speed = SERDES_SPEED_3_125_GBPS;Just checking: Your option is for 2.5 gbps and you configure here to 3.125 gpbs. Is this intended?
This is intended. Serdes encoding is 8b/10b. So for 2.5Gbps you need serdes rate of 3.125Gbps. For 1Gbps we already set 1.25Gpbs serdes rate (SERDES_SPEED_1_25_GBPS) in board_serdes_map[].
baruch
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