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arm: mvebu: clearfog gtr: add config option to select serdes0 interface

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Clearfog GTR has an assembly option for a SATA connector, CON18.
It shares the serdes with mini-pcie connector CON3.

Add new kconfig option to select betweenata and pci, defaulting to pci
as it was previously configured in board-file.

Clearfog GTR connects eth2 / serdes 1 to a 2.5Gbps capable ethernet
switch port. Linux already configures a fixed-link at speed 2500 from
device-tree.
Upgrade serdes 1 rate to 3.125Gbps to support a 2.5Gbps network link on
Clearfog GTR.

Signed-off-by: Josua Mayer <josua@solid-run.com>
This commit is contained in:
Josua Mayer 2024-01-12 14:35:10 +01:00 committed by Stefan Roese
parent 3c04fcf313
commit 26c7de353f
2 changed files with 27 additions and 3 deletions
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19
board/solidrun/clearfog/Kconfig
View file

@ -39,6 +39,25 @@ config CLEARFOG_SFP_25GB
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.
choice CLEARFOG_GTR_SERDES0
prompt "Select Clearfog GTR SerDes 0 Function"
default CLEARFOG_GTR_SERDES0_PCIE
help
Select function for SerDes 0 which is shared between CON3 and CON18
for either pci-e or sata.
config CLEARFOG_GTR_SERDES0_PCIE
bool "PCI-E on CON3"
help
Configure SerDes 0 for PCI-E to enable CON3 mini-PCI-E connector.
config CLEARFOG_GTR_SERDES0_SATA
bool "SATA on CON18"
help
Configure SerDes 0 for SATA to enable CON18 SATA connector.
endchoice
config ENV_SIZE
hex "Environment Size"
default 0x10000

5
board/solidrun/clearfog/clearfog.c
View file

@ -90,9 +90,14 @@ int hws_board_topology_load(struct serdes_map **serdes_map_array, u8 *count)
/* Apply runtime detection changes */
if (sr_product_is(&cf_tlv_data, "Clearfog GTR")) {
if (IS_ENABLED(CONFIG_CLEARFOG_GTR_SERDES0_SATA)) {
/* serdes 0 is sata (like clearfog pro) */
} else if (IS_ENABLED(CONFIG_CLEARFOG_GTR_SERDES0_PCIE)) {
/* serdes 0 is pci */
board_serdes_map[0].serdes_type = PEX0;
board_serdes_map[0].serdes_speed = SERDES_SPEED_5_GBPS;
board_serdes_map[0].serdes_mode = PEX_ROOT_COMPLEX_X1;
}
} else if (sr_product_is(&cf_tlv_data, "Clearfog Pro")) {
/* handle recognized product as noop, no adjustment required */
} else if (sr_product_is(&cf_tlv_data, "Clearfog Base")) {