Messages in this thread | | | Date | Wed, 30 Mar 2016 14:06:44 +0200 | From | Petr Štetiar <> | Subject | Re: [PATCH] i.MX6 PCIe: Fix imx6_pcie_deassert_core_reset() polarity |
| |
Krzysztof Hałasa <khalasa@piap.pl> [2016-03-25 14:32:35]:
Cześć,
> I wonder if all boards (except maybe that Toradex set) use an active-low > PCIe reset and are now broken. Perhaps Toradex uses active-high and thus > works.
I'm really puzzled by this :-) With your patch applied I get following on Toradex Apalis modules:
DTS: reset-gpio = <&gpio1 28 GPIO_ACTIVE_LOW>; dmesg: imx6q-pcie 1ffc000.pcie: phy link never came up gpio: gpio-28 ( |reset ) out hi pin voltage: 0V
DTS: reset-gpio = <&gpio1 28 GPIO_ACTIVE_HIGH>; dmesg: ath9k 0000:01:00.0: enabling device (0140 -> 0142) gpio: gpio-28 ( |reset ) out lo pin voltage: 3V3
So Toradex Apalis is actually active-high? Thanks.
-- ynezz
| |