From: Tony Lindgren Date: Tue, 12 Dec 2023 13:50:35 +0000 (+0200) Subject: ARM: dts: Fix occasional boot hang for am3 usb X-Git-Tag: v5.15.146~22 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=d529cc22789746f078fae573f11ec0288a4c4844;p=thirdparty%2Fkernel%2Fstable.git 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 --- diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi index f53695ecbb782..7daf6ae2cd9af 100644 --- a/arch/arm/boot/dts/am33xx.dtsi +++ b/arch/arm/boot/dts/am33xx.dtsi @@ -349,6 +349,7 @@ , , ; + ti,sysc-delay-us = <2>; clocks = <&l3s_clkctrl AM3_L3S_USB_OTG_HS_CLKCTRL 0>; clock-names = "fck"; #address-cells = <1>;