From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Helmut Grohne <helmut.grohne@intenta.de>,
Alexandre Belloni <alexandre.belloni@bootlin.com>,
"David S . Miller" <davem@davemloft.net>,
Sasha Levin <sashal@kernel.org>,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 5.8 08/29] net: dsa: microchip: look for phy-mode in port nodes
Date: Mon, 28 Sep 2020 21:30:05 -0400 [thread overview]
Message-ID: <20200929013027.2406344-8-sashal@kernel.org> (raw)
In-Reply-To: <20200929013027.2406344-1-sashal@kernel.org>
From: Helmut Grohne <helmut.grohne@intenta.de>
[ Upstream commit edecfa98f602a597666e3c5cab2677ada38d93c5 ]
Documentation/devicetree/bindings/net/dsa/dsa.txt says that the phy-mode
property should be specified on port nodes. However, the microchip
drivers read it from the switch node.
Let the driver use the per-port property and fall back to the old
location with a warning.
Fix in-tree users.
Signed-off-by: Helmut Grohne <helmut.grohne@intenta.de>
Link: https://lore.kernel.org/netdev/20200617082235.GA1523@laureti-dev/
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm/boot/dts/at91-sama5d2_icp.dts | 2 +-
drivers/net/dsa/microchip/ksz8795.c | 18 +++++++++++-----
drivers/net/dsa/microchip/ksz9477.c | 29 +++++++++++++++++---------
drivers/net/dsa/microchip/ksz_common.c | 13 +++++++++++-
drivers/net/dsa/microchip/ksz_common.h | 3 ++-
5 files changed, 47 insertions(+), 18 deletions(-)
diff --git a/arch/arm/boot/dts/at91-sama5d2_icp.dts b/arch/arm/boot/dts/at91-sama5d2_icp.dts
index 8d19925fc09e4..6783cf16ff818 100644
--- a/arch/arm/boot/dts/at91-sama5d2_icp.dts
+++ b/arch/arm/boot/dts/at91-sama5d2_icp.dts
@@ -116,7 +116,6 @@ spi2: spi@400 {
switch0: ksz8563@0 {
compatible = "microchip,ksz8563";
reg = <0>;
- phy-mode = "mii";
reset-gpios = <&pioA PIN_PD4 GPIO_ACTIVE_LOW>;
spi-max-frequency = <500000>;
@@ -140,6 +139,7 @@ port@2 {
reg = <2>;
label = "cpu";
ethernet = <&macb0>;
+ phy-mode = "mii";
fixed-link {
speed = <100>;
full-duplex;
diff --git a/drivers/net/dsa/microchip/ksz8795.c b/drivers/net/dsa/microchip/ksz8795.c
index 87db588bcdd6b..44a4b73806382 100644
--- a/drivers/net/dsa/microchip/ksz8795.c
+++ b/drivers/net/dsa/microchip/ksz8795.c
@@ -941,11 +941,19 @@ static void ksz8795_port_setup(struct ksz_device *dev, int port, bool cpu_port)
ksz_port_cfg(dev, port, P_PRIO_CTRL, PORT_802_1P_ENABLE, true);
if (cpu_port) {
+ if (!p->interface && dev->compat_interface) {
+ dev_warn(dev->dev,
+ "Using legacy switch \"phy-mode\" property, because it is missing on port %d node. "
+ "Please update your device tree.\n",
+ port);
+ p->interface = dev->compat_interface;
+ }
+
/* Configure MII interface for proper network communication. */
ksz_read8(dev, REG_PORT_5_CTRL_6, &data8);
data8 &= ~PORT_INTERFACE_TYPE;
data8 &= ~PORT_GMII_1GPS_MODE;
- switch (dev->interface) {
+ switch (p->interface) {
case PHY_INTERFACE_MODE_MII:
p->phydev.speed = SPEED_100;
break;
@@ -961,11 +969,11 @@ static void ksz8795_port_setup(struct ksz_device *dev, int port, bool cpu_port)
default:
data8 &= ~PORT_RGMII_ID_IN_ENABLE;
data8 &= ~PORT_RGMII_ID_OUT_ENABLE;
- if (dev->interface == PHY_INTERFACE_MODE_RGMII_ID ||
- dev->interface == PHY_INTERFACE_MODE_RGMII_RXID)
+ if (p->interface == PHY_INTERFACE_MODE_RGMII_ID ||
+ p->interface == PHY_INTERFACE_MODE_RGMII_RXID)
data8 |= PORT_RGMII_ID_IN_ENABLE;
- if (dev->interface == PHY_INTERFACE_MODE_RGMII_ID ||
- dev->interface == PHY_INTERFACE_MODE_RGMII_TXID)
+ if (p->interface == PHY_INTERFACE_MODE_RGMII_ID ||
+ p->interface == PHY_INTERFACE_MODE_RGMII_TXID)
data8 |= PORT_RGMII_ID_OUT_ENABLE;
data8 |= PORT_GMII_1GPS_MODE;
data8 |= PORT_INTERFACE_RGMII;
diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c
index 4a9239b2c2e4a..a5402f4dd5278 100644
--- a/drivers/net/dsa/microchip/ksz9477.c
+++ b/drivers/net/dsa/microchip/ksz9477.c
@@ -1217,7 +1217,7 @@ static void ksz9477_port_setup(struct ksz_device *dev, int port, bool cpu_port)
/* configure MAC to 1G & RGMII mode */
ksz_pread8(dev, port, REG_PORT_XMII_CTRL_1, &data8);
- switch (dev->interface) {
+ switch (p->interface) {
case PHY_INTERFACE_MODE_MII:
ksz9477_set_xmii(dev, 0, &data8);
ksz9477_set_gbit(dev, false, &data8);
@@ -1238,11 +1238,11 @@ static void ksz9477_port_setup(struct ksz_device *dev, int port, bool cpu_port)
ksz9477_set_gbit(dev, true, &data8);
data8 &= ~PORT_RGMII_ID_IG_ENABLE;
data8 &= ~PORT_RGMII_ID_EG_ENABLE;
- if (dev->interface == PHY_INTERFACE_MODE_RGMII_ID ||
- dev->interface == PHY_INTERFACE_MODE_RGMII_RXID)
+ if (p->interface == PHY_INTERFACE_MODE_RGMII_ID ||
+ p->interface == PHY_INTERFACE_MODE_RGMII_RXID)
data8 |= PORT_RGMII_ID_IG_ENABLE;
- if (dev->interface == PHY_INTERFACE_MODE_RGMII_ID ||
- dev->interface == PHY_INTERFACE_MODE_RGMII_TXID)
+ if (p->interface == PHY_INTERFACE_MODE_RGMII_ID ||
+ p->interface == PHY_INTERFACE_MODE_RGMII_TXID)
data8 |= PORT_RGMII_ID_EG_ENABLE;
p->phydev.speed = SPEED_1000;
break;
@@ -1286,23 +1286,32 @@ static void ksz9477_config_cpu_port(struct dsa_switch *ds)
dev->cpu_port = i;
dev->host_mask = (1 << dev->cpu_port);
dev->port_mask |= dev->host_mask;
+ p = &dev->ports[i];
/* Read from XMII register to determine host port
* interface. If set specifically in device tree
* note the difference to help debugging.
*/
interface = ksz9477_get_interface(dev, i);
- if (!dev->interface)
- dev->interface = interface;
- if (interface && interface != dev->interface)
+ if (!p->interface) {
+ if (dev->compat_interface) {
+ dev_warn(dev->dev,
+ "Using legacy switch \"phy-mode\" property, because it is missing on port %d node. "
+ "Please update your device tree.\n",
+ i);
+ p->interface = dev->compat_interface;
+ } else {
+ p->interface = interface;
+ }
+ }
+ if (interface && interface != p->interface)
dev_info(dev->dev,
"use %s instead of %s\n",
- phy_modes(dev->interface),
+ phy_modes(p->interface),
phy_modes(interface));
/* enable cpu port */
ksz9477_port_setup(dev, i, true);
- p = &dev->ports[dev->cpu_port];
p->vid_member = dev->port_mask;
p->on = 1;
}
diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index 7b6c0dce75360..3dcf42f78b51b 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -413,6 +413,8 @@ int ksz_switch_register(struct ksz_device *dev,
const struct ksz_dev_ops *ops)
{
phy_interface_t interface;
+ struct device_node *port;
+ unsigned int port_num;
int ret;
if (dev->pdata)
@@ -446,10 +448,19 @@ int ksz_switch_register(struct ksz_device *dev,
/* Host port interface will be self detected, or specifically set in
* device tree.
*/
+ for (port_num = 0; port_num < dev->port_cnt; ++port_num)
+ dev->ports[port_num].interface = PHY_INTERFACE_MODE_NA;
if (dev->dev->of_node) {
ret = of_get_phy_mode(dev->dev->of_node, &interface);
if (ret == 0)
- dev->interface = interface;
+ dev->compat_interface = interface;
+ for_each_available_child_of_node(dev->dev->of_node, port) {
+ if (of_property_read_u32(port, "reg", &port_num))
+ continue;
+ if (port_num >= dev->port_cnt)
+ return -EINVAL;
+ of_get_phy_mode(port, &dev->ports[port_num].interface);
+ }
dev->synclko_125 = of_property_read_bool(dev->dev->of_node,
"microchip,synclko-125");
}
diff --git a/drivers/net/dsa/microchip/ksz_common.h b/drivers/net/dsa/microchip/ksz_common.h
index 7d11dd32ec0d1..7382b1d0c1d81 100644
--- a/drivers/net/dsa/microchip/ksz_common.h
+++ b/drivers/net/dsa/microchip/ksz_common.h
@@ -39,6 +39,7 @@ struct ksz_port {
u32 freeze:1; /* MIB counter freeze is enabled */
struct ksz_port_mib mib;
+ phy_interface_t interface;
};
struct ksz_device {
@@ -72,7 +73,7 @@ struct ksz_device {
int mib_cnt;
int mib_port_cnt;
int last_port; /* ports after that not used */
- phy_interface_t interface;
+ phy_interface_t compat_interface;
u32 regs_size;
bool phy_errata_9477;
bool synclko_125;
--
2.25.1
next prev parent reply other threads:[~2020-09-29 1:30 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-29 1:29 [PATCH AUTOSEL 5.8 01/29] clocksource/drivers/timer-gx6605s: Fixup counter reload Sasha Levin
2020-09-29 1:29 ` [PATCH AUTOSEL 5.8 02/29] vboxsf: Fix the check for the old binary mount-arguments struct Sasha Levin
2020-09-29 1:30 ` [PATCH AUTOSEL 5.8 03/29] mt76: mt7915: use ieee80211_free_txskb to free tx skbs Sasha Levin
2020-09-29 1:30 ` [PATCH AUTOSEL 5.8 04/29] libbpf: Remove arch-specific include path in Makefile Sasha Levin
2020-09-29 1:30 ` [PATCH AUTOSEL 5.8 05/29] drivers/net/wan/hdlc_fr: Add needed_headroom for PVC devices Sasha Levin
2020-09-29 1:30 ` [PATCH AUTOSEL 5.8 06/29] Revert "wlcore: Adding suppoprt for IGTK key in wlcore driver" Sasha Levin
2020-09-29 1:30 ` [PATCH AUTOSEL 5.8 07/29] drm/sun4i: mixer: Extend regmap max_register Sasha Levin
2020-09-29 1:30 ` Sasha Levin [this message]
2020-09-29 5:56 ` [PATCH AUTOSEL 5.8 08/29] net: dsa: microchip: look for phy-mode in port nodes Helmut Grohne
2020-10-04 12:46 ` Sasha Levin
2020-09-29 1:30 ` [PATCH AUTOSEL 5.8 09/29] hv_netvsc: Cache the current data path to avoid duplicate call and message Sasha Levin
2020-09-29 1:30 ` [PATCH AUTOSEL 5.8 10/29] net: dec: de2104x: Increase receive ring size for Tulip Sasha Levin
2020-09-29 1:30 ` [PATCH AUTOSEL 5.8 11/29] rndis_host: increase sleep time in the query-response loop Sasha Levin
2020-09-29 1:30 ` [PATCH AUTOSEL 5.8 12/29] nvme-pci: disable the write zeros command for Intel 600P/P3100 Sasha Levin
2020-09-29 1:30 ` [PATCH AUTOSEL 5.8 13/29] nvme-core: get/put ctrl and transport module in nvme_dev_open/release() Sasha Levin
2020-09-29 1:30 ` [PATCH AUTOSEL 5.8 14/29] regmap: debugfs: Fix handling of name string for debugfs init delays Sasha Levin
2020-09-29 8:33 ` Charles Keepax
2020-10-04 12:54 ` Sasha Levin
2020-09-29 1:30 ` [PATCH AUTOSEL 5.8 15/29] fuse: fix the ->direct_IO() treatment of iov_iter Sasha Levin
2020-09-29 1:30 ` [PATCH AUTOSEL 5.8 16/29] drivers/net/wan/lapbether: Make skb->protocol consistent with the header Sasha Levin
2020-09-29 1:30 ` [PATCH AUTOSEL 5.8 17/29] drivers/net/wan/hdlc: Set skb->protocol before transmitting Sasha Levin
2020-09-29 1:30 ` [PATCH AUTOSEL 5.8 18/29] mac80211: Fix radiotap header channel flag for 6GHz band Sasha Levin
2020-09-29 1:30 ` [PATCH AUTOSEL 5.8 19/29] mac80211: do not allow bigger VHT MPDUs than the hardware supports Sasha Levin
2020-09-29 1:30 ` [PATCH AUTOSEL 5.8 20/29] tracing: Make the space reserved for the pid wider Sasha Levin
2020-09-29 1:30 ` [PATCH AUTOSEL 5.8 21/29] tools/io_uring: fix compile breakage Sasha Levin
2020-09-29 1:30 ` [PATCH AUTOSEL 5.8 22/29] io_uring: mark statx/files_update/epoll_ctl as non-SQPOLL Sasha Levin
2020-09-29 1:30 ` [PATCH AUTOSEL 5.8 23/29] cpuidle: psci: Fix suspicious RCU usage Sasha Levin
2020-09-29 1:30 ` [PATCH AUTOSEL 5.8 24/29] spi: fsl-espi: Only process interrupts for expected events Sasha Levin
2020-09-29 1:30 ` [PATCH AUTOSEL 5.8 25/29] net: dsa: felix: fix some key offsets for IP4_TCP_UDP VCAP IS2 entries Sasha Levin
2020-09-29 1:30 ` [PATCH AUTOSEL 5.8 26/29] nvme-pci: fix NULL req in completion handler Sasha Levin
2020-09-29 1:30 ` [PATCH AUTOSEL 5.8 27/29] nvme-fc: fail new connections to a deleted host or remote port Sasha Levin
2020-09-29 1:30 ` [PATCH AUTOSEL 5.8 28/29] spi: fsl-dspi: fix use-after-free in remove path Sasha Levin
2020-09-29 6:22 ` Sascha Hauer
2020-10-04 12:58 ` Sasha Levin
2020-09-29 1:30 ` [PATCH AUTOSEL 5.8 29/29] scripts/kallsyms: skip ppc compiler stub *.long_branch.* / *.plt_branch.* Sasha Levin
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