From 5e2a2b086cee9a7ba9f765dbf62a62f456b6713a Mon Sep 17 00:00:00 2001 From: Klaus Kudielka Date: Sat, 27 Feb 2021 12:56:10 +0100 Subject: [PATCH] mvebu: Turris Omnia: use SFP module, if present Follow the recommendations stated in the Turris Omnia DTS for eth2: "In case SFP module is present, U-Boot has to enable the sfp node above, remove phy-handle property, and add managed = "in-band-status" property." The boot script is written in a way, that it works for all U-Boot versions deployed by the vendor so far (2015.10-rc2, 2019.07). Reviewed-by: Noci Reviewed-by: Justin van Steijn Reviewed-by: Nico Rikken Reviewed-by: Julius Schwartzenberg Signed-off-by: Klaus Kudielka (cherry picked from commit 23d2690e5a5410576b587bc96e2c2cf5fc693927) --- .../linux/mvebu/image/turris-omnia.bootscript | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/target/linux/mvebu/image/turris-omnia.bootscript b/target/linux/mvebu/image/turris-omnia.bootscript index fcec5fc1b8..9a3fc0d8cb 100644 --- a/target/linux/mvebu/image/turris-omnia.bootscript +++ b/target/linux/mvebu/image/turris-omnia.bootscript @@ -11,7 +11,22 @@ else fi setenv bootargs earlyprintk console=ttyS0,115200 root=${rootdev} rootfstype=auto rootwait -# Load and boot +# Load device tree and prepare for modification load ${devtype} ${devnum}:${distro_bootpart} ${fdt_addr_r} @DTB@.dtb +fdt addr ${fdt_addr_r} +fdt resize + +# Enable SFP cage, if module is present +i2c dev 0 +i2c mw 0x70 0.0 0xf +i2c read 0x71 0 1 0x00fffff1 +setexpr.b mod_def0 *0x00fffff1 \& 0x10 +if test ${mod_def0} -eq 0; then + fdt set /sfp status okay + fdt rm /soc/internal-regs/ethernet@34000 phy-handle + fdt set /soc/internal-regs/ethernet@34000 managed in-band-status +fi + +# Load kernel and boot load ${devtype} ${devnum}:${distro_bootpart} ${kernel_addr_r} zImage bootz ${kernel_addr_r} - ${fdt_addr_r}