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| author | Tony Lindgren <tony@atomide.com> | 2023-12-12 15:50:35 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-01-05 15:18:37 +0100 |
| commit | 119127273b5dd8e3a92c7a15679c2c61f01297bb (patch) | |
| tree | 36aaee1b7fa80666300917041af39a3b933a27a7 /arch | |
| parent | 98235bc13aa8cc939d297fcc68852d9721fa25b3 (diff) | |
| download | linux-stable-119127273b5dd8e3a92c7a15679c2c61f01297bb.tar.gz linux-stable-119127273b5dd8e3a92c7a15679c2c61f01297bb.tar.bz2 linux-stable-119127273b5dd8e3a92c7a15679c2c61f01297bb.zip | |
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 <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/boot/dts/am33xx.dtsi | 1 |
1 files changed, 1 insertions, 0 deletions
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 @@ <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>; |