Thread (18 messages) 18 messages, 4 authors, 2022-09-01

Re: [PATCH v5 4/7] reset: imx7: Fix the iMX8MP PCIe PHY PERST support

From: Philipp Zabel <p.zabel@pengutronix.de>
Date: 2022-08-30 16:46:56
Also in: linux-arm-kernel, linux-pci, linux-phy, lkml

Hi,

On Di, 2022-08-30 at 15:46 +0800, Richard Zhu wrote:
On i.MX7/iMX8MM/iMX8MQ, the initialized default value of PERST bit(BIT3)
of SRC_PCIEPHY_RCR is 1b'1.
But i.MX8MP has one inversed default value 1b'0 of PERST bit.

And the PERST bit should be kept 1b'1 after power and clocks are stable.
So fix the i.MX8MP PCIe PHY PERST support here.

Fixes: e08672c03981 ("reset: imx7: Add support for i.MX8MP SoC")
Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Tested-by: Marek Vasut <marex@denx.de>
Tested-by: Richard Leitner <richard.leitner@skidata.com>
Tested-by: Alexander Stein <redacted>
I've applied this patch to the reset/fixes branch.

regards
Philipp
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