From: FUKAUMI Naoki <naoki@radxa.com>
To: u-boot@lists.denx.de
Cc: sjg@chromium.org, philipp.tomsich@vrull.eu,
kever.yang@rock-chips.com, gajjar04akash@gmail.com,
jonas@kwiboo.se, FUKAUMI Naoki <naoki@radxa.com>
Subject: [PATCH] arm: dts: rockchip: disable "usb_host0_ohci" to make boot faster for Radxa ROCK 3A
Date: Fri, 2 Aug 2024 11:49:49 +0900 [thread overview]
Message-ID: <20240802024949.122688-1-naoki@radxa.com> (raw)
on-board USB 2.0 hub, FE1.1s, has Transaction Translator which can
handle USB 1.x devices via "usb_host0_ehci". so we can omit
"usb_host0_ohci" and make boot faster (a little).
=> usb start
starting USB...
Bus usb@fd000000: Register 2000140 NbrPorts 2
Starting the controller
USB XHCI 1.10
Bus usb@fd800000: USB EHCI 1.00
Bus usb@fd880000: USB EHCI 1.00
Bus usb@fd8c0000: USB OHCI 1.0
scanning bus usb@fd000000 for devices... 1 USB Device(s) found
scanning bus usb@fd800000 for devices... 2 USB Device(s) found
scanning bus usb@fd880000 for devices... 1 USB Device(s) found
scanning bus usb@fd8c0000 for devices... 3 USB Device(s) found
scanning usb for storage devices... 1 Storage Device(s) found
=> usb tree
USB device tree:
1 Hub (5 Gb/s, 0mA)
U-Boot XHCI Host Controller
1 Hub (480 Mb/s, 0mA)
| u-boot EHCI Host Controller
|
+-2 Hub (480 Mb/s, 100mA)
USB 2.0 Hub
1 Hub (480 Mb/s, 0mA)
u-boot EHCI Host Controller
1 Hub (12 Mb/s, 0mA)
| U-Boot Root Hub
|
+-2 Hub (12 Mb/s, 100mA)
| ALCOR Generic USB Hub
|
+-3 Mass Storage (12 Mb/s, 300mA)
JetFlash Mass Storage Device 02K1RNH5MJFV4TX6
=> usb reset
resetting USB...
Host not halted after 16000 microseconds.
Bus usb@fd000000: Register 2000140 NbrPorts 2
Starting the controller
USB XHCI 1.10
Bus usb@fd800000: USB EHCI 1.00
Bus usb@fd880000: USB EHCI 1.00
Bus usb@fd8c0000: USB OHCI 1.0
scanning bus usb@fd000000 for devices... 1 USB Device(s) found
scanning bus usb@fd800000 for devices... 4 USB Device(s) found
scanning bus usb@fd880000 for devices... 1 USB Device(s) found
scanning bus usb@fd8c0000 for devices... 1 USB Device(s) found
scanning usb for storage devices... 1 Storage Device(s) found
=> usb tree
USB device tree:
1 Hub (5 Gb/s, 0mA)
U-Boot XHCI Host Controller
1 Hub (480 Mb/s, 0mA)
| u-boot EHCI Host Controller
|
+-2 Hub (480 Mb/s, 100mA)
| USB 2.0 Hub
|
+-3 Hub (12 Mb/s, 100mA)
| ALCOR Generic USB Hub
|
+-4 Mass Storage (12 Mb/s, 300mA)
JetFlash Mass Storage Device 02K1RNH5MJFV4TX6
1 Hub (480 Mb/s, 0mA)
u-boot EHCI Host Controller
1 Hub (12 Mb/s, 0mA)
U-Boot Root Hub
Signed-off-by: FUKAUMI Naoki <naoki@radxa.com>
---
arch/arm/dts/rk3568-rock-3a-u-boot.dtsi | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/arm/dts/rk3568-rock-3a-u-boot.dtsi b/arch/arm/dts/rk3568-rock-3a-u-boot.dtsi
index 9d18f5d0b36..9078b9a67a2 100644
--- a/arch/arm/dts/rk3568-rock-3a-u-boot.dtsi
+++ b/arch/arm/dts/rk3568-rock-3a-u-boot.dtsi
@@ -40,3 +40,7 @@
spi-tx-bus-width = <1>;
};
};
+
+&usb_host0_ohci {
+ status = "disabled";
+};
--
2.43.0
next reply other threads:[~2024-08-02 2:50 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-02 2:49 FUKAUMI Naoki [this message]
2024-08-08 23:46 ` [PATCH] arm: dts: rockchip: disable "usb_host0_ohci" to make boot faster for Radxa ROCK 3A FUKAUMI Naoki
2024-08-09 9:14 ` Kever Yang
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