From 8a86308a87d32b289eff0b6f89de1dea466bae9b Mon Sep 17 00:00:00 2001
From: Joel Johnson <mrjoel@lixil.net>
Date: Mon, 23 Mar 2020 14:21:33 -0600
Subject: [PATCH] arm: mvebu: clearfog: Add option for 2.5 Gbps SFP
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>
Reviewed-by: Stefan Roese <sr@denx.de>
---
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 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 11d3a7f877..8f3e5dc6a3 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;
+
+ /* Apply runtime detection changes */
if (sr_product_is(&cf_tlv_data, "Clearfog GTR")) {
board_serdes_map[0].serdes_type = PEX0;
board_serdes_map[0].serdes_speed = SERDES_SPEED_5_GBPS;
--
2.39.5