Re: [PATCH] net: ethernet: stmmac: Enable interface clocks on probe for IPQ806x

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From: Jonathan McDowell <noodles@xxxxxxxx>
Date: Thu, 21 May 2020 12:49:34 +0100

> The ipq806x_gmac_probe() function enables the PTP clock but not the
> appropriate interface clocks. This means that if the bootloader hasn't
> done so attempting to bring up the interface will fail with an error
> like:
> 
> [   59.028131] ipq806x-gmac-dwmac 37600000.ethernet: Failed to reset the dma
> [   59.028196] ipq806x-gmac-dwmac 37600000.ethernet eth1: stmmac_hw_setup: DMA engine initialization failed
> [   59.034056] ipq806x-gmac-dwmac 37600000.ethernet eth1: stmmac_open: Hw setup failed
> 
> This patch, a slightly cleaned up version of one posted by Sergey
> Sergeev in:
> 
> https://forum.openwrt.org/t/support-for-mikrotik-rb3011uias-rm/4064/257
> 
> correctly enables the clock; we have already configured the source just
> before this.
> 
> Tested on a MikroTik RB3011.
> 
> Signed-off-by: Jonathan McDowell <noodles@xxxxxxxx>

Applied, thanks.



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