[PATCH v4 0/1] riscv: dts: starfive: jh7110-milkv-mars: enable usb0 host function
E Shattow
e at freeshell.de
Mon Nov 18 17:44:34 PST 2024
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). The existing three VL805 connected USB ports via PCIe on
Milk-V Mars are not affected.
Changes since v3:
- Rebase on linux-next/master
- use tabs for code indent
Changes since v2:
- Rebase on 6.12
Changes since v1:
- series name (was "[PATCH] riscv: dts: starfive: jh7110-milkv-mars: set host mode and vbus pin for on-chip USB 2.0")
- adjust pin label to obey dtschema
- use cover letter
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(-)
--
2.45.2
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