[PATCH v5 0/1] riscv: dts: starfive: jh7110-milkv-mars: enable usb0 host function

From: E Shattow <e@freeshell.de>
To: Jisheng Zhang <jszhang@kernel.org>
Cc: E Shattow <e@freeshell.de>,
	Emil Renner Berthing <kernel@esmil.dk>,
	Conor Dooley <conor@kernel.org>, Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	linux-riscv@lists.infradead.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH v5 0/1] riscv: dts: starfive: jh7110-milkv-mars: enable usb0 host function
Date: Mon, 25 Nov 2024 23:57:24 -0800	[thread overview]
Message-ID: <20241126075740.17419-1-e@freeshell.de> (raw)

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 
ports and the remaining three VL805-connected ports via PCIe are not changed.

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(-)

-- 
2.45.2

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