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Diffstat (limited to 'doc/README.t4240qds')
| -rw-r--r-- | doc/README.t4240qds | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/doc/README.t4240qds b/doc/README.t4240qds index ef8c75f3b2..3962fee7f2 100644 --- a/doc/README.t4240qds +++ b/doc/README.t4240qds @@ -79,6 +79,25 @@ Board Features - High-speed serial flash Two Serial port Four I2C ports + XFI + XFI is supported on T4QDS-XFI board which removed slot3 and routed + four Lanes A/B/C/D to a SFP+ cages, which to house fiber cable or + direct attach cable(copper), the copper cable is used to emulate + 10GBASE-KR scenario. + So, for XFI usage, there are two scenarios, one will use fiber cable, + another will use copper cable. An hwconfig env "fsl_10gkr_copper" is + introduced to indicate a XFI port will use copper cable, and U-boot + will fixup the dtb accordingly. + It's used as: fsl_10gkr_copper:<10g_mac_name> + The <10g_mac_name> can be fm1_10g1, fm1_10g2, fm2_10g1, fm2_10g2, they + do not have to be coexist in hwconfig. If a MAC is listed in the env + "fsl_10gkr_copper", it will use copper cable, otherwise, fiber cable + will be used by default. + for ex. set "fsl_10gkr_copper:fm1_10g1,fm1_10g2,fm2_10g1,fm2_10g2" in + hwconfig, then both four XFI ports will use copper cable. + set "fsl_10gkr_copper:fm1_10g1,fm1_10g2" in hwconfig, then first two + XFI ports will use copper cable, the other two XFI ports will use fiber + cable. Memory map ---------- |