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author | Marek BehĂșn <marek.behun@nic.cz> | 2018-12-17 18:10:02 +0300 |
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committer | Stefan Roese <sr@denx.de> | 2019-01-21 13:39:49 +0300 |
commit | 9433cd1109ae61b2676ed4832ae75da79ec9083d (patch) | |
tree | 40298a7431e813a4c83d1b6506d10e3d17b58d6c | |
parent | 296c64ea4147aa621e3ab4f42b2c43cc8a91991a (diff) | |
download | u-boot-9433cd1109ae61b2676ed4832ae75da79ec9083d.tar.xz |
arm: mvebu: turris_mox: Change SERDES map depending on module topology
When SFP module is connected directly to CPU module we want the SGMII
lane speed at 1.25 Gbps.
This is a temporary solution till there is a comphy driver in the kernel
capable of changing SGMII speed at runtime.
Signed-off-by: Marek BehĂșn <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
-rw-r--r-- | board/CZ.NIC/turris_mox/turris_mox.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/board/CZ.NIC/turris_mox/turris_mox.c b/board/CZ.NIC/turris_mox/turris_mox.c index 415c462493..3c0ab58756 100644 --- a/board/CZ.NIC/turris_mox/turris_mox.c +++ b/board/CZ.NIC/turris_mox/turris_mox.c @@ -8,6 +8,7 @@ #include <dm.h> #include <clk.h> #include <spi.h> +#include <mvebu/comphy.h> #include <linux/string.h> #include <linux/libfdt.h> #include <fdt_support.h> @@ -206,6 +207,38 @@ static int mox_get_topology(const u8 **ptopology, int *psize, int *pis_sd) return 0; } +int comphy_update_map(struct comphy_map *serdes_map, int count) +{ + int ret, i, size, sfpindex = -1, swindex = -1; + const u8 *topology; + + ret = mox_get_topology(&topology, &size, NULL); + if (ret) + return ret; + + for (i = 0; i < size; ++i) { + if (topology[i] == MOX_MODULE_SFP && sfpindex == -1) + sfpindex = i; + else if ((topology[i] == MOX_MODULE_TOPAZ || + topology[i] == MOX_MODULE_PERIDOT) && + swindex == -1) + swindex = i; + } + + if (sfpindex >= 0 && swindex >= 0) { + if (sfpindex < swindex) + serdes_map[0].speed = PHY_SPEED_1_25G; + else + serdes_map[0].speed = PHY_SPEED_3_125G; + } else if (sfpindex >= 0) { + serdes_map[0].speed = PHY_SPEED_1_25G; + } else if (swindex >= 0) { + serdes_map[0].speed = PHY_SPEED_3_125G; + } + + return 0; +} + int last_stage_init(void) { int ret, i; |