From: Andrew Lunn <andrew@lunn•ch>
To: Marek Vasut <marex@denx•de>
Cc: netdev@vger•kernel.org, "David S . Miller" <davem@davemloft•net>,
Lukas Wunner <lukas@wunner•de>, Petr Stetiar <ynezz@true•cz>,
YueHaibing <yuehaibing@huawei•com>
Subject: Re: [PATCH 06/14] net: ks8851: Remove ks8851_rdreg32()
Date: Tue, 24 Mar 2020 02:30:44 +0100 [thread overview]
Message-ID: <20200324013044.GM3819@lunn.ch> (raw)
In-Reply-To: <20200323234303.526748-7-marex@denx.de>
> @@ -527,9 +507,8 @@ static void ks8851_rx_pkts(struct ks8851_net *ks)
> */
>
> for (; rxfc != 0; rxfc--) {
> - rxh = ks8851_rdreg32(ks, KS_RXFHSR);
> - rxstat = rxh & 0xffff;
> - rxlen = (rxh >> 16) & 0xfff;
> + rxstat = ks8851_rdreg16(ks, KS_RXFHSR);
> + rxlen = ks8851_rdreg16(ks, KS_RXFHBCR) & RXFHBCR_CNT_MASK;
Hi Marek
Is there anything in the datasheet about these registers? Does reading
them clear an interrupt etc? A 32bit read is i assume one SPI
transaction, where as this is now two transactions, so no longer
atomic.
Andrew
next prev parent reply other threads:[~2020-03-24 1:30 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-23 23:42 [PATCH 00/14] net: ks8851: Unify KS8851 SPI and MLL drivers Marek Vasut
2020-03-23 23:42 ` [PATCH 01/14] net: ks8851: Factor out spi->dev in probe()/remove() Marek Vasut
2020-03-24 1:15 ` Andrew Lunn
2020-03-24 6:46 ` Lukas Wunner
2020-03-23 23:42 ` [PATCH 02/14] net: ks8851: Replace dev_err() with netdev_err() in IRQ handler Marek Vasut
2020-03-24 1:16 ` Andrew Lunn
2020-03-23 23:42 ` [PATCH 03/14] net: ks8851: Pass device pointer into ks8851_init_mac() Marek Vasut
2020-03-24 1:06 ` Andrew Lunn
2020-03-24 7:08 ` Lukas Wunner
2020-03-23 23:42 ` [PATCH 04/14] net: ks8851: Use devm_alloc_etherdev() Marek Vasut
2020-03-24 1:19 ` Andrew Lunn
2020-03-23 23:42 ` [PATCH 05/14] net: ks8851: Use dev_{get,set}_drvdata() Marek Vasut
2020-03-24 1:22 ` Andrew Lunn
2020-03-23 23:42 ` [PATCH 06/14] net: ks8851: Remove ks8851_rdreg32() Marek Vasut
2020-03-24 1:30 ` Andrew Lunn [this message]
2020-03-24 12:34 ` Marek Vasut
2020-03-24 7:22 ` Lukas Wunner
2020-03-24 12:37 ` Marek Vasut
2020-03-23 23:42 ` [PATCH 07/14] net: ks8851: Use 16-bit writes to program MAC address Marek Vasut
2020-03-24 1:40 ` Andrew Lunn
2020-03-24 7:17 ` Michal Kubecek
2020-03-24 8:13 ` Lukas Wunner
2020-03-24 12:25 ` Andrew Lunn
2020-03-24 12:36 ` Lukas Wunner
2020-03-24 13:09 ` Marek Vasut
2020-03-24 13:31 ` Marek Vasut
2020-03-24 14:47 ` Lukas Wunner
2020-03-24 14:53 ` Marek Vasut
2020-03-23 23:42 ` [PATCH 08/14] net: ks8851: Use 16-bit read of RXFC register Marek Vasut
2020-03-24 1:50 ` Andrew Lunn
2020-03-24 12:50 ` Marek Vasut
2020-03-24 13:32 ` Andrew Lunn
2020-03-24 10:41 ` Lukas Wunner
2020-03-24 12:42 ` Marek Vasut
2020-03-23 23:42 ` [PATCH 09/14] net: ks8851: Split out SPI specific entries in struct ks8851_net Marek Vasut
2020-03-24 1:55 ` Andrew Lunn
2020-03-24 10:49 ` Lukas Wunner
2020-03-24 12:27 ` Andrew Lunn
2020-03-23 23:42 ` [PATCH 10/14] net: ks8851: Split out SPI specific code from probe() and remove() Marek Vasut
2020-03-24 1:58 ` Andrew Lunn
2020-03-23 23:43 ` [PATCH 11/14] net: ks8851: Implement register and FIFO accessor callbacks Marek Vasut
2020-03-24 13:45 ` Lukas Wunner
2020-03-24 14:10 ` Marek Vasut
2020-03-24 14:29 ` Lukas Wunner
2020-03-24 14:44 ` Marek Vasut
2020-03-29 14:22 ` Marek Vasut
2020-03-23 23:43 ` [PATCH 12/14] net: ks8851: Separate SPI operations into separate file Marek Vasut
2020-03-23 23:43 ` [PATCH 13/14] net: ks8851: Implement Parallel bus operations Marek Vasut
2020-03-24 8:16 ` kbuild test robot
2020-03-23 23:43 ` [PATCH 14/14] net: ks8851: Remove ks8851_mll.c Marek Vasut
2020-03-24 14:08 ` Lukas Wunner
2020-03-24 14:12 ` Marek Vasut
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