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[v6,0/1] riscv: dts: starfive: jh7110-milkv-mars: enable usb0 host function

Message ID 20241127154958.71094-1-e@freeshell.de (mailing list archive)
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Series riscv: dts: starfive: jh7110-milkv-mars: enable usb0 host function | expand

Message

E Shattow Nov. 27, 2024, 3:49 p.m. UTC 
Enable host mode JH7110 on-chip USB for Milk-V Mars by setting host mode
and connect vbus pinctrl.

This functionality depends on setting the USB over-current register to 
disable at bootloader phase, for example U-Boot:
https://patchwork.ozlabs.org/project/uboot/patch/20241012031328.4268-6-minda.chen@starfivetech.com/

If the over-current register is not prepared for us then the result is no 
change in functional outcome with this patch applied; there is an error 
visible to the user and this additional usb configuration fails (same as
it is now). On Milk-V Mars with four USB-A ports this applies to one of the 
USB-A ports and the remaining three VL805-connected USB-A ports via PCIe are 
not changed.

Changes since v5:
 - Rebase on latest master
 - Addtional detail to commit description

Changes since v4:
 - Rebase on latest master

Changes since v3:
 - Rebase on linux-next/master
 - use tabs for code indent

Changes since v2:
 - Rebase on 6.12

E Shattow (1):
  riscv: dts: starfive: jh7110-milkv-mars: enable usb0 host function

 .../boot/dts/starfive/jh7110-milkv-mars.dts    | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)