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mvebu: Turris Omnia: use SFP module, if present

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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 <noci@noci.work>
Reviewed-by: Justin van Steijn <jvs@fsfe.org>
Reviewed-by: Nico Rikken <nico@nicorikken.eu>
Reviewed-by: Julius Schwartzenberg <julius.schwartzenberg@gmail.com>
Signed-off-by: Klaus Kudielka <klaus.kudielka@gmail.com>
(cherry picked from commit 23d2690e5a5410576b587bc96e2c2cf5fc693927)
This commit is contained in:
Klaus Kudielka 2021-02-27 12:56:10 +01:00 committed by Christian Lamparter
parent 24e564d327
commit 5e2a2b086c
1 changed files with 16 additions and 1 deletions
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17
target/linux/mvebu/image/turris-omnia.bootscript
View File

@ -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}