netdev - Re: [PATCH net] net: stmmac: dma channel control register need to be init first

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Date:   Mon, 20 May 2019 20:56:44 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     weifeng.voon@...el.com
Cc:     mcoquelin.stm32@...il.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, joabreu@...opsys.com,
        peppe.cavallaro@...com, alexandre.torgue@...com,
        boon.leong.ong@...el.com
Subject: Re: [PATCH net] net: stmmac: dma channel control register need to
 be init first

From: Weifeng Voon <weifeng.voon@...el.com>
Date: Tue, 21 May 2019 13:38:38 +0800

> stmmac_init_chan() needs to be called before stmmac_init_rx_chan() and
> stmmac_init_tx_chan(). This is because if PBLx8 is to be used,
> "DMA_CH(#i)_Control.PBLx8" needs to be set before programming
> "DMA_CH(#i)_TX_Control.TxPBL" and "DMA_CH(#i)_RX_Control.RxPBL".
> 
> Fixes: 47f2a9ce527a ("net: stmmac: dma channel init prepared for multiple queues")
> Reviewed-by: Zhang, Baoli <baoli.zhang@...el.com>
> Signed-off-by: Ong Boon Leong <boon.leong.ong@...el.com>
> Signed-off-by: Weifeng Voon <weifeng.voon@...el.com>

Applied and queued up for -stable.

Thanks.