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From: Jose Abreu <Jose.Abreu@synopsys.com>
To: linux-kernel@vger.kernel.org, netdev@vger.kernel.org
Cc: Jose Abreu <Jose.Abreu@synopsys.com>,
	Joao Pinto <Joao.Pinto@synopsys.com>,
	"David S . Miller" <davem@davemloft.net>,
	Giuseppe Cavallaro <peppe.cavallaro@st.com>,
	Alexandre Torgue <alexandre.torgue@st.com>,
	Corentin Labbe <clabbe.montjoie@gmail.com>
Subject: [PATCH net-next 02/18] net: stmmac: dwmac100: Add MAC loopback support
Date: Thu, 23 May 2019 09:36:52 +0200	[thread overview]
Message-ID: <1e869f7e767c8937e0e38c4c1492f1f896412d90.1558596600.git.joabreu@synopsys.com> (raw)
In-Reply-To: <cover.1558596599.git.joabreu@synopsys.com>
In-Reply-To: <cover.1558596599.git.joabreu@synopsys.com>

In preparation for the addition of stmmac selftests we implement the MAC
loopback callback in dwmac100 core.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Cc: Joao Pinto <jpinto@synopsys.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: Corentin Labbe <clabbe.montjoie@gmail.com>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c
index b735143987e1..d621b5189c41 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c
@@ -160,6 +160,18 @@ static void dwmac100_pmt(struct mac_device_info *hw, unsigned long mode)
 	return;
 }
 
+static void dwmac100_set_mac_loopback(void __iomem *ioaddr, bool enable)
+{
+	u32 value = readl(ioaddr + MAC_CONTROL);
+
+	if (enable)
+		value |= MAC_CONTROL_OM;
+	else
+		value &= ~MAC_CONTROL_OM;
+
+	writel(value, ioaddr + MAC_CONTROL);
+}
+
 const struct stmmac_ops dwmac100_ops = {
 	.core_init = dwmac100_core_init,
 	.set_mac = stmmac_set_mac,
@@ -171,6 +183,7 @@ const struct stmmac_ops dwmac100_ops = {
 	.pmt = dwmac100_pmt,
 	.set_umac_addr = dwmac100_set_umac_addr,
 	.get_umac_addr = dwmac100_get_umac_addr,
+	.set_mac_loopback = dwmac100_set_mac_loopback,
 };
 
 int dwmac100_setup(struct stmmac_priv *priv)
-- 
2.7.4


  parent reply	other threads:[~2019-05-23  7:37 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-23  7:36 [PATCH net-next 00/18] net: stmmac: Improvements and Selftests Jose Abreu
2019-05-23  7:36 ` [PATCH net-next 01/18] net: stmmac: Add MAC loopback callback to HWIF Jose Abreu
2019-05-23  7:36 ` Jose Abreu [this message]
2019-05-23  7:36 ` [PATCH net-next 03/18] net: stmmac: dwmac1000: Add MAC loopback support Jose Abreu
2019-05-23  7:36 ` [PATCH net-next 04/18] net: stmmac: dwmac4/5: " Jose Abreu
2019-05-23  7:36 ` [PATCH net-next 05/18] net: stmmac: dwxgmac2: " Jose Abreu
2019-05-23  7:36 ` [PATCH net-next 06/18] net: ethernet: stmmac: dwmac-sun8i: Enable control of loopback Jose Abreu
2019-05-23  7:36 ` [PATCH net-next 07/18] net: stmmac: Switch MMC functions to HWIF callbacks Jose Abreu
2019-05-23  7:36 ` [PATCH net-next 08/18] net: stmmac: dwmac1000: Also pass control frames while in promisc mode Jose Abreu
2019-05-23  7:36 ` [PATCH net-next 09/18] net: stmmac: dwmac4/5: " Jose Abreu
2019-05-23  7:37 ` [PATCH net-next 10/18] net: stmmac: dwxgmac2: " Jose Abreu
2019-05-23  7:37 ` [PATCH net-next 11/18] net: stmmac: Introduce selftests support Jose Abreu
2019-05-23  7:37 ` [PATCH net-next 12/18] net: stmmac: dwmac1000: Fix Hash Filter Jose Abreu
2019-05-23  7:37 ` [PATCH net-next 13/18] net: stmmac: dwmac1000: Clear unused address entries Jose Abreu
2019-05-23  7:37 ` [PATCH net-next 14/18] net: stmmac: dwmac4/5: Fix Hash Filter Jose Abreu
2019-05-23  7:37 ` [PATCH net-next 15/18] net: stmmac: dwmac4/5: Do not disable whole RX in dma_stop_rx() Jose Abreu
2019-05-23  7:37 ` [PATCH net-next 16/18] net: stmmac: dwxgmac2: " Jose Abreu
2019-05-23  7:37 ` [PATCH net-next 17/18] net: stmmac: dwmac4/5: Clear unused address entries Jose Abreu
2019-05-23  7:37 ` [PATCH net-next 18/18] net: stmmac: Prevent missing interrupts when running NAPI Jose Abreu
2019-05-23 16:09 ` [PATCH net-next 00/18] net: stmmac: Improvements and Selftests David Miller
2019-05-23 16:18   ` David Miller
2019-05-24  7:24     ` Jose Abreu

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