From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: "Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, "Holsety Chen " <Holsety.Chen@moxa.com>,
"SZ Lin " <sz.lin@moxa.com>, "Schuyler Patton" <spatton@ti.com>,
"Grygorii Strashko" <grygorii.strashko@ti.com>,
"David S. Miller" <davem@davemloft.net>
Subject: [PATCH 4.15 39/47] net: ethernet: ti: cpsw: add check for in-band mode setting with RGMII PHY interface
Date: Thu, 29 Mar 2018 20:00:20 +0200 [thread overview]
Message-ID: <20180329175732.691321277@linuxfoundation.org> (raw)
In-Reply-To: <20180329175729.225211114@linuxfoundation.org>
4.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: "SZ Lin (林上智)" <sz.lin@moxa.com>
[ Upstream commit f9db50691db4a7d860fce985f080bb3fc23a7ede ]
According to AM335x TRM[1] 14.3.6.2, AM437x TRM[2] 15.3.6.2 and
DRA7 TRM[3] 24.11.4.8.7.3.3, in-band mode in EXT_EN(bit18) register is only
available when PHY is configured in RGMII mode with 10Mbps speed. It will
cause some networking issues without RGMII mode, such as carrier sense
errors and low throughput. TI also mentioned this issue in their forum[4].
This patch adds the check mechanism for PHY interface with RGMII interface
type, the in-band mode can only be set in RGMII mode with 10Mbps speed.
References:
[1]: https://www.ti.com/lit/ug/spruh73p/spruh73p.pdf
[2]: http://www.ti.com/lit/ug/spruhl7h/spruhl7h.pdf
[3]: http://www.ti.com/lit/ug/spruic2b/spruic2b.pdf
[4]: https://e2e.ti.com/support/arm/sitara_arm/f/791/p/640765/2392155
Suggested-by: Holsety Chen (陳憲輝) <Holsety.Chen@moxa.com>
Signed-off-by: SZ Lin (林上智) <sz.lin@moxa.com>
Signed-off-by: Schuyler Patton <spatton@ti.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/ethernet/ti/cpsw.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -996,7 +996,8 @@ static void _cpsw_adjust_link(struct cps
/* set speed_in input in case RMII mode is used in 100Mbps */
if (phy->speed == 100)
mac_control |= BIT(15);
- else if (phy->speed == 10)
+ /* in band mode only works in 10Mbps RGMII mode */
+ else if ((phy->speed == 10) && phy_interface_is_rgmii(phy))
mac_control |= BIT(18); /* In Band mode */
if (priv->rx_pause)
next prev parent reply other threads:[~2018-03-29 18:00 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-29 17:59 [PATCH 4.15 00/47] 4.15.15-stable review Greg Kroah-Hartman
2018-03-29 17:59 ` [PATCH 4.15 01/47] net: dsa: Fix dsa_is_user_port() test inversion Greg Kroah-Hartman
2018-03-29 17:59 ` [PATCH 4.15 02/47] openvswitch: meter: fix the incorrect calculation of max delta_t Greg Kroah-Hartman
2018-03-29 17:59 ` [PATCH 4.15 03/47] qed: Fix MPA unalign flow in case header is split across two packets Greg Kroah-Hartman
2018-03-29 17:59 ` [PATCH 4.15 04/47] tcp: purge write queue upon aborting the connection Greg Kroah-Hartman
2018-03-29 17:59 ` [PATCH 4.15 05/47] qed: Fix non TCP packets should be dropped on iWARP ll2 connection Greg Kroah-Hartman
2018-03-29 17:59 ` [PATCH 4.15 06/47] sysfs: symlink: export sysfs_create_link_nowarn() Greg Kroah-Hartman
2018-03-29 17:59 ` [PATCH 4.15 07/47] net: phy: relax error checking when creating sysfs link netdev->phydev Greg Kroah-Hartman
2018-03-29 17:59 ` [PATCH 4.15 08/47] devlink: Remove redundant free on error path Greg Kroah-Hartman
2018-03-29 17:59 ` [PATCH 4.15 09/47] macvlan: filter out unsupported feature flags Greg Kroah-Hartman
2018-03-29 17:59 ` [PATCH 4.15 10/47] net: ipv6: keep sk status consistent after datagram connect failure Greg Kroah-Hartman
2018-03-29 17:59 ` [PATCH 4.15 11/47] ipv6: old_dport should be a __be16 in __ip6_datagram_connect() Greg Kroah-Hartman
2018-03-29 17:59 ` [PATCH 4.15 12/47] ipv6: sr: fix NULL pointer dereference when setting encap source address Greg Kroah-Hartman
2018-03-29 17:59 ` [PATCH 4.15 13/47] ipv6: sr: fix scheduling in RCU when creating seg6 lwtunnel state Greg Kroah-Hartman
2018-03-29 17:59 ` [PATCH 4.15 14/47] mlxsw: spectrum_buffers: Set a minimum quota for CPU port traffic Greg Kroah-Hartman
2018-03-29 17:59 ` [PATCH 4.15 15/47] net: phy: Tell caller result of phy_change() Greg Kroah-Hartman
2018-03-29 17:59 ` [PATCH 4.15 16/47] ipv6: Reflect MTU changes on PMTU of exceptions for MTU-less routes Greg Kroah-Hartman
2018-03-29 17:59 ` [PATCH 4.15 17/47] net sched actions: return explicit error when tunnel_key mode is not specified Greg Kroah-Hartman
2018-03-29 17:59 ` [PATCH 4.15 18/47] ppp: avoid loop in xmit recursion detection code Greg Kroah-Hartman
2018-03-29 18:00 ` [PATCH 4.15 19/47] rhashtable: Fix rhlist duplicates insertion Greg Kroah-Hartman
2018-03-29 18:00 ` [PATCH 4.15 20/47] test_rhashtable: add test case for rhltable with duplicate objects Greg Kroah-Hartman
2018-03-29 18:00 ` [PATCH 4.15 21/47] kcm: lock lower socket in kcm_attach Greg Kroah-Hartman
2018-03-29 18:00 ` [PATCH 4.15 22/47] sch_netem: fix skb leak in netem_enqueue() Greg Kroah-Hartman
2018-03-29 18:00 ` [PATCH 4.15 23/47] ieee802154: 6lowpan: fix possible NULL deref in lowpan_device_event() Greg Kroah-Hartman
2018-03-29 18:00 ` [PATCH 4.15 24/47] net: use skb_to_full_sk() in skb_update_prio() Greg Kroah-Hartman
2018-03-29 18:00 ` [PATCH 4.15 25/47] net: Fix hlist corruptions in inet_evict_bucket() Greg Kroah-Hartman
2018-03-29 18:00 ` [PATCH 4.15 26/47] s390/qeth: free netdevice when removing a card Greg Kroah-Hartman
2018-03-29 18:00 ` [PATCH 4.15 27/47] s390/qeth: when thread completes, wake up all waiters Greg Kroah-Hartman
2018-03-29 18:00 ` [PATCH 4.15 28/47] s390/qeth: lock read device while queueing next buffer Greg Kroah-Hartman
2018-03-29 18:00 ` [PATCH 4.15 29/47] s390/qeth: on channel error, reject further cmd requests Greg Kroah-Hartman
2018-03-29 18:00 ` [PATCH 4.15 30/47] soc/fsl/qbman: fix issue in qman_delete_cgr_safe() Greg Kroah-Hartman
2018-03-29 18:00 ` [PATCH 4.15 31/47] dpaa_eth: fix error in dpaa_remove() Greg Kroah-Hartman
2018-03-29 18:00 ` [PATCH 4.15 32/47] dpaa_eth: remove duplicate initialization Greg Kroah-Hartman
2018-03-29 18:00 ` [PATCH 4.15 33/47] dpaa_eth: increment the RX dropped counter when needed Greg Kroah-Hartman
2018-03-29 18:00 ` [PATCH 4.15 34/47] dpaa_eth: remove duplicate increment of the tx_errors counter Greg Kroah-Hartman
2018-03-29 18:00 ` [PATCH 4.15 35/47] dccp: check sk for closed state in dccp_sendmsg() Greg Kroah-Hartman
2018-03-29 18:00 ` [PATCH 4.15 36/47] ipv6: fix access to non-linear packet in ndisc_fill_redirect_hdr_option() Greg Kroah-Hartman
2018-03-29 18:00 ` [PATCH 4.15 37/47] l2tp: do not accept arbitrary sockets Greg Kroah-Hartman
2018-03-29 18:00 ` [PATCH 4.15 38/47] net: ethernet: arc: Fix a potential memory leak if an optional regulator is deferred Greg Kroah-Hartman
2018-03-29 18:00 ` Greg Kroah-Hartman [this message]
2018-03-29 18:00 ` [PATCH 4.15 40/47] net: fec: Fix unbalanced PM runtime calls Greg Kroah-Hartman
2018-03-29 18:00 ` [PATCH 4.15 41/47] net/iucv: Free memory obtained by kzalloc Greg Kroah-Hartman
2018-03-29 18:00 ` [PATCH 4.15 42/47] netlink: avoid a double skb free in genlmsg_mcast() Greg Kroah-Hartman
2018-03-29 18:00 ` [PATCH 4.15 43/47] net: Only honor ifindex in IP_PKTINFO if non-0 Greg Kroah-Hartman
2018-03-29 18:00 ` [PATCH 4.15 44/47] net: systemport: Rewrite __bcm_sysport_tx_reclaim() Greg Kroah-Hartman
2018-03-29 18:00 ` [PATCH 4.15 45/47] qede: Fix qedr link update Greg Kroah-Hartman
2018-03-29 18:00 ` [PATCH 4.15 46/47] skbuff: Fix not waking applications when errors are enqueued Greg Kroah-Hartman
2018-03-29 18:00 ` [PATCH 4.15 47/47] team: Fix double free in error path Greg Kroah-Hartman
2018-03-29 22:01 ` [PATCH 4.15 00/47] 4.15.15-stable review kernelci.org bot
2018-03-29 23:09 ` Shuah Khan
2018-03-30 9:02 ` Greg Kroah-Hartman
2018-03-30 8:11 ` Naresh Kamboju
2018-03-30 9:08 ` Greg Kroah-Hartman
2018-03-30 15:20 ` Guenter Roeck
2018-03-31 7:22 ` Greg Kroah-Hartman
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