From 119127273b5dd8e3a92c7a15679c2c61f01297bb Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Tue, 12 Dec 2023 15:50:35 +0200 Subject: [PATCH] ARM: dts: Fix occasional boot hang for am3 usb [ Upstream commit 9b6a51aab5f5f9f71d2fa16e8b4d530e1643dfcb ] With subtle timings changes, we can now sometimes get an external abort on non-linefetch error booting am3 devices at sysc_reset(). This is because of a missing reset delay needed for the usb target module. Looks like we never enabled the delay earlier for am3, although a similar issue was seen earlier with a similar usb setup for dm814x as described in commit ebf244148092 ("ARM: OMAP2+: Use srst_udelay for USB on dm814x"). Cc: stable@vger.kernel.org Fixes: 0782e8572ce4 ("ARM: dts: Probe am335x musb with ti-sysc") Signed-off-by: Tony Lindgren Signed-off-by: Sasha Levin --- arch/arm/boot/dts/am33xx.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi index 32d397b3950b..b2e7f6a71074 100644 --- a/arch/arm/boot/dts/am33xx.dtsi +++ b/arch/arm/boot/dts/am33xx.dtsi @@ -349,6 +349,7 @@ usb: target-module@47400000 { , , ; + ti,sysc-delay-us = <2>; clocks = <&l3s_clkctrl AM3_L3S_USB_OTG_HS_CLKCTRL 0>; clock-names = "fck"; #address-cells = <1>;