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ARM: dts: Fix occasional boot hang for am3 usb

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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 <tony@atomide.com>
This commit is contained in:
Tony Lindgren 2023-12-12 15:50:35 +02:00
parent c72b9c33ef
commit 9b6a51aab5
1 changed files with 1 additions and 0 deletions
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arch/arm/boot/dts/ti/omap/am33xx.dtsi
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@ -359,6 +359,7 @@
<SYSC_IDLE_NO>,
<SYSC_IDLE_SMART>,
<SYSC_IDLE_SMART_WKUP>;
ti,sysc-delay-us = <2>;
clocks = <&l3s_clkctrl AM3_L3S_USB_OTG_HS_CLKCTRL 0>;
clock-names = "fck";
#address-cells = <1>;