[PATCH v6 0/7] add NS2 support to bgmac

[PATCH v6 0/7] add NS2 support to bgmac

[Jon Mason]

Changes in v6:
* Use a common bgmac_phy_connect_direct (per Rafal Milecki) 
* Rebased on latest net-next
* Added Reviewed-by to the relevant patches


Changes in v5:
* Change a pr_err to netdev_err (per Scott Branden)
* Reword the lane swap binding documentation (per Andrew Lunn)


Changes in v4:
* Actually send out the lane swap binding doc patch (Per Scott Branden)
* Remove unused #define (Per Andrew Lunn)


Changes in v3:
* Clean-up the bgmac DT binding doc (per Rob Herring)
* Document the lane swap binding and make it generic (Per Andrew Lunn)


Changes in v2:
* Remove the PHY power-on (per Andrew Lunn)
* Misc PHY clean-ups regarding comments and #defines (per Andrew Lunn)
  This results on none of the original PHY code from Vikas being
  present.  So, I'm removing him as an author and giving him
  "Inspired-by" credit.
* Move PHY lane swapping to PHY driver (per Andrew Lunn and Florian
  Fainelli)
* Remove bgmac sleep (per Florian Fainelli)
* Re-add bgmac chip reset (per Florian Fainelli and Ray Jui)
* Rebased on latest net-next
* Added patch for bcm54xx_auxctl_read, which is used in the BCM54810


Jon Mason (7):
  net: phy: broadcom: add bcm54xx_auxctl_read
  Documentation: devicetree: add PHY lane swap binding
  net: phy: broadcom: Add BCM54810 PHY entry
  Documentation: devicetree: net: add NS2 bindings to amac
  net: ethernet: bgmac: device tree phy enablement
  net: ethernet: bgmac: add NS2 support
  arm64: dts: NS2: add AMAC ethernet support

 .../devicetree/bindings/net/brcm,amac.txt          | 16 +++--
 Documentation/devicetree/bindings/net/phy.txt      |  4 ++
 arch/arm64/boot/dts/broadcom/ns2-svk.dts           |  5 ++
 arch/arm64/boot/dts/broadcom/ns2.dtsi              | 12 ++++
 drivers/net/ethernet/broadcom/bgmac-bcma.c         | 22 +++++++
 drivers/net/ethernet/broadcom/bgmac-platform.c     | 74 +++++++++++++++++++++-
 drivers/net/ethernet/broadcom/bgmac.c              | 32 +++-------
 drivers/net/ethernet/broadcom/bgmac.h              |  9 +++
 drivers/net/phy/Kconfig                            |  2 +-
 drivers/net/phy/broadcom.c                         | 68 +++++++++++++++++++-
 include/linux/brcmphy.h                            | 10 +++
 11 files changed, 222 insertions(+), 32 deletions(-)

-- 
2.7.4

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[PATCH v6 1/7] net: phy: broadcom: add bcm54xx_auxctl_read

[Jon Mason]

Add a helper function to read the AUXCTL register for the BCM54xx.  This
mirrors the bcm54xx_auxctl_write function already present in the code.

Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
---
 drivers/net/phy/broadcom.c | 10 ++++++++++
 include/linux/brcmphy.h    |  1 +
 2 files changed, 11 insertions(+)

diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c
index 583ef8a..3a64b3d 100644
--- a/drivers/net/phy/broadcom.c
+++ b/drivers/net/phy/broadcom.c
@@ -30,6 +30,16 @@ MODULE_DESCRIPTION("Broadcom PHY driver");
 MODULE_AUTHOR("Maciej W. Rozycki");
 MODULE_LICENSE("GPL");
 
+static int bcm54xx_auxctl_read(struct phy_device *phydev, u16 regnum)
+{
+	/* The register must be written to both the Shadow Register Select and
+	 * the Shadow Read Register Selector
+	 */
+	phy_write(phydev, MII_BCM54XX_AUX_CTL, regnum |
+		  regnum << MII_BCM54XX_AUXCTL_SHDWSEL_READ_SHIFT);
+	return phy_read(phydev, MII_BCM54XX_AUX_CTL);
+}
+
 static int bcm54xx_auxctl_write(struct phy_device *phydev, u16 regnum, u16 val)
 {
 	return phy_write(phydev, MII_BCM54XX_AUX_CTL, regnum | val);
diff --git a/include/linux/brcmphy.h b/include/linux/brcmphy.h
index 60def78..0ed6691 100644
--- a/include/linux/brcmphy.h
+++ b/include/linux/brcmphy.h
@@ -110,6 +110,7 @@
 #define MII_BCM54XX_AUXCTL_MISC_FORCE_AMDIX	0x0200
 #define MII_BCM54XX_AUXCTL_MISC_RDSEL_MISC	0x7000
 #define MII_BCM54XX_AUXCTL_SHDWSEL_MISC	0x0007
+#define MII_BCM54XX_AUXCTL_SHDWSEL_READ_SHIFT	12
 
 #define MII_BCM54XX_AUXCTL_SHDWSEL_MASK	0x0007
 
-- 
2.7.4

[PATCH v6 2/7] Documentation: devicetree: add PHY lane swap binding

[Jon Mason]

Add the documentation for PHY lane swapping.  This is a boolean entry to
notify the phy device drivers that the TX/RX lanes need to be swapped.

Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
---
 Documentation/devicetree/bindings/net/phy.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/phy.txt b/Documentation/devicetree/bindings/net/phy.txt
index bc1c3c8..4627da3 100644
--- a/Documentation/devicetree/bindings/net/phy.txt
+++ b/Documentation/devicetree/bindings/net/phy.txt
@@ -35,6 +35,10 @@ Optional Properties:
 - broken-turn-around: If set, indicates the PHY device does not correctly
   release the turn around line low at the end of a MDIO transaction.
 
+- enet-phy-lane-swap: If set, indicates the PHY will swap the TX/RX lanes to
+  compensate for the board being designed with the lanes swapped.
+
+
 Example:
 
 ethernet-phy@0 {
-- 
2.7.4

[PATCH v6 3/7] net: phy: broadcom: Add BCM54810 PHY entry

[Jon Mason]

The BCM54810 PHY requires some semi-unique configuration, which results
in some additional configuration in addition to the standard config.
Also, some users of the BCM54810 require the PHY lanes to be swapped.
Since there is no way to detect this, add a device tree query to see if
it is applicable.

Inspired-by: Vikas Soni <vsoni@broadcom.com>
Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
---
 drivers/net/phy/Kconfig    |  2 +-
 drivers/net/phy/broadcom.c | 58 +++++++++++++++++++++++++++++++++++++++++++++-
 include/linux/brcmphy.h    |  9 +++++++
 3 files changed, 67 insertions(+), 2 deletions(-)

diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index ff31c10..d3fcfd2 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -217,7 +217,7 @@ config BROADCOM_PHY
 	select BCM_NET_PHYLIB
 	---help---
 	  Currently supports the BCM5411, BCM5421, BCM5461, BCM54616S, BCM5464,
-	  BCM5481 and BCM5482 PHYs.
+	  BCM5481, BCM54810 and BCM5482 PHYs.
 
 config CICADA_PHY
 	tristate "Cicada PHYs"
diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c
index 3a64b3d..b1e32e9 100644
--- a/drivers/net/phy/broadcom.c
+++ b/drivers/net/phy/broadcom.c
@@ -18,7 +18,7 @@
 #include <linux/module.h>
 #include <linux/phy.h>
 #include <linux/brcmphy.h>
-
+#include <linux/of.h>
 
 #define BRCM_PHY_MODEL(phydev) \
 	((phydev)->drv->phy_id & (phydev)->drv->phy_id_mask)
@@ -45,6 +45,34 @@ static int bcm54xx_auxctl_write(struct phy_device *phydev, u16 regnum, u16 val)
 	return phy_write(phydev, MII_BCM54XX_AUX_CTL, regnum | val);
 }
 
+static int bcm54810_config(struct phy_device *phydev)
+{
+	int rc, val;
+
+	val = bcm_phy_read_exp(phydev, BCM54810_EXP_BROADREACH_LRE_MISC_CTL);
+	val &= ~BCM54810_EXP_BROADREACH_LRE_MISC_CTL_EN;
+	rc = bcm_phy_write_exp(phydev, BCM54810_EXP_BROADREACH_LRE_MISC_CTL,
+			       val);
+	if (rc < 0)
+		return rc;
+
+	val = bcm54xx_auxctl_read(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC);
+	val &= ~MII_BCM54XX_AUXCTL_SHDWSEL_MISC_RGMII_SKEW_EN;
+	val |= MII_BCM54XX_AUXCTL_MISC_WREN;
+	rc = bcm54xx_auxctl_write(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC,
+				  val);
+	if (rc < 0)
+		return rc;
+
+	val = bcm_phy_read_shadow(phydev, BCM54810_SHD_CLK_CTL);
+	val &= ~BCM54810_SHD_CLK_CTL_GTXCLK_EN;
+	rc = bcm_phy_write_shadow(phydev, BCM54810_SHD_CLK_CTL, val);
+	if (rc < 0)
+		return rc;
+
+	return 0;
+}
+
 /* Needs SMDSP clock enabled via bcm54xx_phydsp_config() */
 static int bcm50610_a0_workaround(struct phy_device *phydev)
 {
@@ -217,6 +245,12 @@ static int bcm54xx_config_init(struct phy_device *phydev)
 	    (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE))
 		bcm54xx_adjust_rxrefclk(phydev);
 
+	if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM54810) {
+		err = bcm54810_config(phydev);
+		if (err)
+			return err;
+	}
+
 	bcm54xx_phydsp_config(phydev);
 
 	return 0;
@@ -314,6 +348,7 @@ static int bcm5482_read_status(struct phy_device *phydev)
 
 static int bcm5481_config_aneg(struct phy_device *phydev)
 {
+	struct device_node *np = phydev->mdio.dev.of_node;
 	int ret;
 
 	/* Aneg firsly. */
@@ -344,6 +379,14 @@ static int bcm5481_config_aneg(struct phy_device *phydev)
 		phy_write(phydev, 0x18, reg);
 	}
 
+	if (of_property_read_bool(np, "enet-phy-lane-swap")) {
+		/* Lane Swap - Undocumented register...magic! */
+		ret = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_SEL_ER + 0x9,
+					0x11B);
+		if (ret < 0)
+			return ret;
+	}
+
 	return ret;
 }
 
@@ -578,6 +621,18 @@ static struct phy_driver broadcom_drivers[] = {
 	.ack_interrupt	= bcm_phy_ack_intr,
 	.config_intr	= bcm_phy_config_intr,
 }, {
+	.phy_id         = PHY_ID_BCM54810,
+	.phy_id_mask    = 0xfffffff0,
+	.name           = "Broadcom BCM54810",
+	.features       = PHY_GBIT_FEATURES |
+			  SUPPORTED_Pause | SUPPORTED_Asym_Pause,
+	.flags          = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
+	.config_init    = bcm54xx_config_init,
+	.config_aneg    = bcm5481_config_aneg,
+	.read_status    = genphy_read_status,
+	.ack_interrupt  = bcm_phy_ack_intr,
+	.config_intr    = bcm_phy_config_intr,
+}, {
 	.phy_id		= PHY_ID_BCM5482,
 	.phy_id_mask	= 0xfffffff0,
 	.name		= "Broadcom BCM5482",
@@ -661,6 +716,7 @@ static struct mdio_device_id __maybe_unused broadcom_tbl[] = {
 	{ PHY_ID_BCM54616S, 0xfffffff0 },
 	{ PHY_ID_BCM5464, 0xfffffff0 },
 	{ PHY_ID_BCM5481, 0xfffffff0 },
+	{ PHY_ID_BCM54810, 0xfffffff0 },
 	{ PHY_ID_BCM5482, 0xfffffff0 },
 	{ PHY_ID_BCM50610, 0xfffffff0 },
 	{ PHY_ID_BCM50610M, 0xfffffff0 },
diff --git a/include/linux/brcmphy.h b/include/linux/brcmphy.h
index 0ed6691..848dc50 100644
--- a/include/linux/brcmphy.h
+++ b/include/linux/brcmphy.h
@@ -13,6 +13,7 @@
 #define PHY_ID_BCM5241			0x0143bc30
 #define PHY_ID_BCMAC131			0x0143bc70
 #define PHY_ID_BCM5481			0x0143bca0
+#define PHY_ID_BCM54810			0x03625d00
 #define PHY_ID_BCM5482			0x0143bcb0
 #define PHY_ID_BCM5411			0x00206070
 #define PHY_ID_BCM5421			0x002060e0
@@ -56,6 +57,7 @@
 #define PHY_BRCM_EXT_IBND_TX_ENABLE	0x00002000
 #define PHY_BRCM_CLEAR_RGMII_MODE	0x00004000
 #define PHY_BRCM_DIS_TXCRXC_NOENRGY	0x00008000
+
 /* Broadcom BCM7xxx specific workarounds */
 #define PHY_BRCM_7XXX_REV(x)		(((x) >> 8) & 0xff)
 #define PHY_BRCM_7XXX_PATCH(x)		((x) & 0xff)
@@ -111,6 +113,7 @@
 #define MII_BCM54XX_AUXCTL_MISC_RDSEL_MISC	0x7000
 #define MII_BCM54XX_AUXCTL_SHDWSEL_MISC	0x0007
 #define MII_BCM54XX_AUXCTL_SHDWSEL_READ_SHIFT	12
+#define MII_BCM54XX_AUXCTL_SHDWSEL_MISC_RGMII_SKEW_EN	(1 << 8)
 
 #define MII_BCM54XX_AUXCTL_SHDWSEL_MASK	0x0007
 
@@ -192,6 +195,12 @@
 #define BCM5482_SSD_SGMII_SLAVE_EN	0x0002	/* Slave mode enable */
 #define BCM5482_SSD_SGMII_SLAVE_AD	0x0001	/* Slave auto-detection */
 
+/* BCM54810 Registers */
+#define BCM54810_EXP_BROADREACH_LRE_MISC_CTL	(MII_BCM54XX_EXP_SEL_ER + 0x90)
+#define BCM54810_EXP_BROADREACH_LRE_MISC_CTL_EN	(1 << 0)
+#define BCM54810_SHD_CLK_CTL			0x3
+#define BCM54810_SHD_CLK_CTL_GTXCLK_EN		(1 << 9)
+
 
 /*****************************************************************************/
 /* Fast Ethernet Transceiver definitions. */
-- 
2.7.4

[PATCH v6 4/7] Documentation: devicetree: net: add NS2 bindings to amac

[Jon Mason]

Clean-up the documentation to the bgmac-amac driver, per suggestion by
Rob Herring, and add details for NS2 support.

Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
---
 Documentation/devicetree/bindings/net/brcm,amac.txt | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/Documentation/devicetree/bindings/net/brcm,amac.txt b/Documentation/devicetree/bindings/net/brcm,amac.txt
index ba5ecc1..2fefa1a 100644
--- a/Documentation/devicetree/bindings/net/brcm,amac.txt
+++ b/Documentation/devicetree/bindings/net/brcm,amac.txt
@@ -2,11 +2,17 @@ Broadcom AMAC Ethernet Controller Device Tree Bindings
 -------------------------------------------------------------
 
 Required properties:
- - compatible:	"brcm,amac" or "brcm,nsp-amac"
- - reg:		Address and length of the GMAC registers,
-		Address and length of the GMAC IDM registers
- - reg-names:	Names of the registers.  Must have both "amac_base" and
-		"idm_base"
+ - compatible:	"brcm,amac"
+		"brcm,nsp-amac"
+		"brcm,ns2-amac"
+ - reg:		Address and length of the register set for the device. It
+		contains the information of registers in the same order as
+		described by reg-names
+ - reg-names:	Names of the registers.
+		"amac_base":	Address and length of the GMAC registers
+		"idm_base":	Address and length of the GMAC IDM registers
+		"nicpm_base":	Address and length of the NIC Port Manager
+				registers (required for Northstar2)
  - interrupts:	Interrupt number
 
 Optional properties:
-- 
2.7.4

[PATCH v6 5/7] net: ethernet: bgmac: device tree phy enablement

[Jon Mason]

Change the bgmac driver to allow for phy's defined by the device tree

Signed-off-by: Jon Mason <jon.mason@broadcom.com>
---
 drivers/net/ethernet/broadcom/bgmac-bcma.c     | 22 +++++++++++++++++++
 drivers/net/ethernet/broadcom/bgmac-platform.c | 22 ++++++++++++++++++-
 drivers/net/ethernet/broadcom/bgmac.c          | 29 +++++---------------------
 drivers/net/ethernet/broadcom/bgmac.h          |  8 +++++++
 4 files changed, 56 insertions(+), 25 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bgmac-bcma.c b/drivers/net/ethernet/broadcom/bgmac-bcma.c
index c16ec3a..4a4ffc0 100644
--- a/drivers/net/ethernet/broadcom/bgmac-bcma.c
+++ b/drivers/net/ethernet/broadcom/bgmac-bcma.c
@@ -80,6 +80,24 @@ static void bcma_bgmac_cmn_maskset32(struct bgmac *bgmac, u16 offset, u32 mask,
 	bcma_maskset32(bgmac->bcma.cmn, offset, mask, set);
 }
 
+static int bcma_phy_connect(struct bgmac *bgmac)
+{
+	struct phy_device *phy_dev;
+	char bus_id[MII_BUS_ID_SIZE + 3];
+
+	/* Connect to the PHY */
+	snprintf(bus_id, sizeof(bus_id), PHY_ID_FMT, bgmac->mii_bus->id,
+		 bgmac->phyaddr);
+	phy_dev = phy_connect(bgmac->net_dev, bus_id, bgmac_adjust_link,
+			      PHY_INTERFACE_MODE_MII);
+	if (IS_ERR(phy_dev)) {
+		dev_err(bgmac->dev, "PHY connection failed\n");
+		return PTR_ERR(phy_dev);
+	}
+
+	return 0;
+}
+
 static const struct bcma_device_id bgmac_bcma_tbl[] = {
 	BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_4706_MAC_GBIT,
 		  BCMA_ANY_REV, BCMA_ANY_CLASS),
@@ -275,6 +293,10 @@ static int bgmac_probe(struct bcma_device *core)
 	bgmac->cco_ctl_maskset = bcma_bgmac_cco_ctl_maskset;
 	bgmac->get_bus_clock = bcma_bgmac_get_bus_clock;
 	bgmac->cmn_maskset32 = bcma_bgmac_cmn_maskset32;
+	if (bgmac->mii_bus)
+		bgmac->phy_connect = bcma_phy_connect;
+	else
+		bgmac->phy_connect = bgmac_phy_connect_direct;
 
 	err = bgmac_enet_probe(bgmac);
 	if (err)
diff --git a/drivers/net/ethernet/broadcom/bgmac-platform.c b/drivers/net/ethernet/broadcom/bgmac-platform.c
index be52f27..4642940 100644
--- a/drivers/net/ethernet/broadcom/bgmac-platform.c
+++ b/drivers/net/ethernet/broadcom/bgmac-platform.c
@@ -16,6 +16,7 @@
 #include <linux/bcma/bcma.h>
 #include <linux/etherdevice.h>
 #include <linux/of_address.h>
+#include <linux/of_mdio.h>
 #include <linux/of_net.h>
 #include "bgmac.h"
 
@@ -86,6 +87,20 @@ static void platform_bgmac_cmn_maskset32(struct bgmac *bgmac, u16 offset,
 	WARN_ON(1);
 }
 
+static int platform_phy_connect(struct bgmac *bgmac)
+{
+	struct phy_device *phy_dev;
+
+	phy_dev = of_phy_get_and_connect(bgmac->net_dev, bgmac->dev->of_node,
+					 bgmac_adjust_link);
+	if (!phy_dev) {
+		dev_err(bgmac->dev, "PHY connection failed\n");
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
 static int bgmac_probe(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
@@ -102,7 +117,6 @@ static int bgmac_probe(struct platform_device *pdev)
 	/* Set the features of the 4707 family */
 	bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST;
 	bgmac->feature_flags |= BGMAC_FEAT_NO_RESET;
-	bgmac->feature_flags |= BGMAC_FEAT_FORCE_SPEED_2500;
 	bgmac->feature_flags |= BGMAC_FEAT_CMDCFG_SR_REV4;
 	bgmac->feature_flags |= BGMAC_FEAT_TX_MASK_SETUP;
 	bgmac->feature_flags |= BGMAC_FEAT_RX_MASK_SETUP;
@@ -151,6 +165,12 @@ static int bgmac_probe(struct platform_device *pdev)
 	bgmac->cco_ctl_maskset = platform_bgmac_cco_ctl_maskset;
 	bgmac->get_bus_clock = platform_bgmac_get_bus_clock;
 	bgmac->cmn_maskset32 = platform_bgmac_cmn_maskset32;
+	if (of_parse_phandle(np, "phy-handle", 0)) {
+		bgmac->phy_connect = platform_phy_connect;
+	} else {
+		bgmac->phy_connect = bgmac_phy_connect_direct;
+		bgmac->feature_flags |= BGMAC_FEAT_FORCE_SPEED_2500;
+	}
 
 	return bgmac_enet_probe(bgmac);
 }
diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c
index 31ca204..7f66ea7 100644
--- a/drivers/net/ethernet/broadcom/bgmac.c
+++ b/drivers/net/ethernet/broadcom/bgmac.c
@@ -1388,7 +1388,7 @@ static const struct ethtool_ops bgmac_ethtool_ops = {
  * MII
  **************************************************/
 
-static void bgmac_adjust_link(struct net_device *net_dev)
+void bgmac_adjust_link(struct net_device *net_dev)
 {
 	struct bgmac *bgmac = netdev_priv(net_dev);
 	struct phy_device *phy_dev = net_dev->phydev;
@@ -1411,8 +1411,9 @@ static void bgmac_adjust_link(struct net_device *net_dev)
 		phy_print_status(phy_dev);
 	}
 }
+EXPORT_SYMBOL_GPL(bgmac_adjust_link);
 
-static int bgmac_phy_connect_direct(struct bgmac *bgmac)
+int bgmac_phy_connect_direct(struct bgmac *bgmac)
 {
 	struct fixed_phy_status fphy_status = {
 		.link = 1,
@@ -1437,24 +1438,7 @@ static int bgmac_phy_connect_direct(struct bgmac *bgmac)
 
 	return err;
 }
-
-static int bgmac_phy_connect(struct bgmac *bgmac)
-{
-	struct phy_device *phy_dev;
-	char bus_id[MII_BUS_ID_SIZE + 3];
-
-	/* Connect to the PHY */
-	snprintf(bus_id, sizeof(bus_id), PHY_ID_FMT, bgmac->mii_bus->id,
-		 bgmac->phyaddr);
-	phy_dev = phy_connect(bgmac->net_dev, bus_id, &bgmac_adjust_link,
-			      PHY_INTERFACE_MODE_MII);
-	if (IS_ERR(phy_dev)) {
-		dev_err(bgmac->dev, "PHY connection failed\n");
-		return PTR_ERR(phy_dev);
-	}
-
-	return 0;
-}
+EXPORT_SYMBOL_GPL(bgmac_phy_connect_direct);
 
 int bgmac_enet_probe(struct bgmac *info)
 {
@@ -1507,10 +1491,7 @@ int bgmac_enet_probe(struct bgmac *info)
 
 	netif_napi_add(net_dev, &bgmac->napi, bgmac_poll, BGMAC_WEIGHT);
 
-	if (!bgmac->mii_bus)
-		err = bgmac_phy_connect_direct(bgmac);
-	else
-		err = bgmac_phy_connect(bgmac);
+	err = bgmac_phy_connect(bgmac);
 	if (err) {
 		dev_err(bgmac->dev, "Cannot connect to phy\n");
 		goto err_dma_free;
diff --git a/drivers/net/ethernet/broadcom/bgmac.h b/drivers/net/ethernet/broadcom/bgmac.h
index 80836b4..bfd9f40 100644
--- a/drivers/net/ethernet/broadcom/bgmac.h
+++ b/drivers/net/ethernet/broadcom/bgmac.h
@@ -513,10 +513,13 @@ struct bgmac {
 	u32 (*get_bus_clock)(struct bgmac *bgmac);
 	void (*cmn_maskset32)(struct bgmac *bgmac, u16 offset, u32 mask,
 			      u32 set);
+	int (*phy_connect)(struct bgmac *bgmac);
 };
 
 int bgmac_enet_probe(struct bgmac *info);
 void bgmac_enet_remove(struct bgmac *bgmac);
+void bgmac_adjust_link(struct net_device *net_dev);
+int bgmac_phy_connect_direct(struct bgmac *bgmac);
 
 struct mii_bus *bcma_mdio_mii_register(struct bcma_device *core, u8 phyaddr);
 void bcma_mdio_mii_unregister(struct mii_bus *mii_bus);
@@ -583,4 +586,9 @@ static inline void bgmac_set(struct bgmac *bgmac, u16 offset, u32 set)
 {
 	bgmac_maskset(bgmac, offset, ~0, set);
 }
+
+static inline int bgmac_phy_connect(struct bgmac *bgmac)
+{
+	return bgmac->phy_connect(bgmac);
+}
 #endif /* _BGMAC_H */
-- 
2.7.4

Re: [PATCH v6 5/7] net: ethernet: bgmac: device tree phy enablement

[Rafal Milecki]

On 11/04/2016 06:11 AM, Jon Mason wrote:
> Change the bgmac driver to allow for phy's defined by the device tree
>
> Signed-off-by: Jon Mason <jon.mason@broadcom.com>

Checked for possible regressions on Northstar, looks OK.

Acked-by: Rafał Miłecki <rafal@milecki.pl>

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Re: [PATCH v6 5/7] net: ethernet: bgmac: device tree phy enablement

[Rafał Miłecki]

On 2016-11-04 06:11, Jon Mason wrote:
> Change the bgmac driver to allow for phy's defined by the device tree
> 
> Signed-off-by: Jon Mason <jon.mason@broadcom.com>

[Resending from Roundcube due to "Wrong MIME labeling on 8-bit character 
texts."
vger.kernel.org reject when using Thunderbird]

Checked for possible regressions on Northstar, looks OK.

Acked-by: Rafał Miłecki <rafal@milecki.pl>

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[PATCH v6 6/7] net: ethernet: bgmac: add NS2 support

[Jon Mason]

Add support for the variant of amac hardware present in the Broadcom
Northstar2 based SoCs.  Northstar2 requires an additional register to be
configured with the port speed/duplexity (NICPM).  This can be added to
the link callback to hide it from the instances that do not use this.
Also, clearing of the pending interrupts on init is required due to
observed issues on some platforms.

Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
---
 drivers/net/ethernet/broadcom/bgmac-platform.c | 56 +++++++++++++++++++++++++-
 drivers/net/ethernet/broadcom/bgmac.c          |  3 ++
 drivers/net/ethernet/broadcom/bgmac.h          |  1 +
 3 files changed, 58 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bgmac-platform.c b/drivers/net/ethernet/broadcom/bgmac-platform.c
index 4642940..6f736c1 100644
--- a/drivers/net/ethernet/broadcom/bgmac-platform.c
+++ b/drivers/net/ethernet/broadcom/bgmac-platform.c
@@ -14,12 +14,21 @@
 #define pr_fmt(fmt)		KBUILD_MODNAME ": " fmt
 
 #include <linux/bcma/bcma.h>
+#include <linux/brcmphy.h>
 #include <linux/etherdevice.h>
 #include <linux/of_address.h>
 #include <linux/of_mdio.h>
 #include <linux/of_net.h>
 #include "bgmac.h"
 
+#define NICPM_IOMUX_CTRL		0x00000008
+
+#define NICPM_IOMUX_CTRL_INIT_VAL	0x3196e000
+#define NICPM_IOMUX_CTRL_SPD_SHIFT	10
+#define NICPM_IOMUX_CTRL_SPD_10M	0
+#define NICPM_IOMUX_CTRL_SPD_100M	1
+#define NICPM_IOMUX_CTRL_SPD_1000M	2
+
 static u32 platform_bgmac_read(struct bgmac *bgmac, u16 offset)
 {
 	return readl(bgmac->plat.base + offset);
@@ -87,12 +96,46 @@ static void platform_bgmac_cmn_maskset32(struct bgmac *bgmac, u16 offset,
 	WARN_ON(1);
 }
 
+static void bgmac_nicpm_speed_set(struct net_device *net_dev)
+{
+	struct bgmac *bgmac = netdev_priv(net_dev);
+	u32 val;
+
+	if (!bgmac->plat.nicpm_base)
+		return;
+
+	val = NICPM_IOMUX_CTRL_INIT_VAL;
+	switch (bgmac->net_dev->phydev->speed) {
+	default:
+		netdev_err(net_dev, "Unsupported speed. Defaulting to 1000Mb\n");
+	case SPEED_1000:
+		val |= NICPM_IOMUX_CTRL_SPD_1000M << NICPM_IOMUX_CTRL_SPD_SHIFT;
+		break;
+	case SPEED_100:
+		val |= NICPM_IOMUX_CTRL_SPD_100M << NICPM_IOMUX_CTRL_SPD_SHIFT;
+		break;
+	case SPEED_10:
+		val |= NICPM_IOMUX_CTRL_SPD_10M << NICPM_IOMUX_CTRL_SPD_SHIFT;
+		break;
+	}
+
+	writel(val, bgmac->plat.nicpm_base + NICPM_IOMUX_CTRL);
+
+	bgmac_adjust_link(bgmac->net_dev);
+}
+
 static int platform_phy_connect(struct bgmac *bgmac)
 {
 	struct phy_device *phy_dev;
 
-	phy_dev = of_phy_get_and_connect(bgmac->net_dev, bgmac->dev->of_node,
-					 bgmac_adjust_link);
+	if (bgmac->plat.nicpm_base)
+		phy_dev = of_phy_get_and_connect(bgmac->net_dev,
+						 bgmac->dev->of_node,
+						 bgmac_nicpm_speed_set);
+	else
+		phy_dev = of_phy_get_and_connect(bgmac->net_dev,
+						 bgmac->dev->of_node,
+						 bgmac_adjust_link);
 	if (!phy_dev) {
 		dev_err(bgmac->dev, "PHY connection failed\n");
 		return -ENODEV;
@@ -156,6 +199,14 @@ static int bgmac_probe(struct platform_device *pdev)
 	if (IS_ERR(bgmac->plat.idm_base))
 		return PTR_ERR(bgmac->plat.idm_base);
 
+	regs = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nicpm_base");
+	if (regs) {
+		bgmac->plat.nicpm_base = devm_ioremap_resource(&pdev->dev,
+							       regs);
+		if (IS_ERR(bgmac->plat.nicpm_base))
+			return PTR_ERR(bgmac->plat.nicpm_base);
+	}
+
 	bgmac->read = platform_bgmac_read;
 	bgmac->write = platform_bgmac_write;
 	bgmac->idm_read = platform_bgmac_idm_read;
@@ -187,6 +238,7 @@ static int bgmac_remove(struct platform_device *pdev)
 static const struct of_device_id bgmac_of_enet_match[] = {
 	{.compatible = "brcm,amac",},
 	{.compatible = "brcm,nsp-amac",},
+	{.compatible = "brcm,ns2-amac",},
 	{},
 };
 
diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c
index 7f66ea7..a29787f 100644
--- a/drivers/net/ethernet/broadcom/bgmac.c
+++ b/drivers/net/ethernet/broadcom/bgmac.c
@@ -1082,6 +1082,9 @@ static void bgmac_enable(struct bgmac *bgmac)
 /* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/chipinit */
 static void bgmac_chip_init(struct bgmac *bgmac)
 {
+	/* Clear any erroneously pending interrupts */
+	bgmac_write(bgmac, BGMAC_INT_STATUS, ~0);
+
 	/* 1 interrupt per received frame */
 	bgmac_write(bgmac, BGMAC_INT_RECV_LAZY, 1 << BGMAC_IRL_FC_SHIFT);
 
diff --git a/drivers/net/ethernet/broadcom/bgmac.h b/drivers/net/ethernet/broadcom/bgmac.h
index bfd9f40..71f493f 100644
--- a/drivers/net/ethernet/broadcom/bgmac.h
+++ b/drivers/net/ethernet/broadcom/bgmac.h
@@ -463,6 +463,7 @@ struct bgmac {
 		struct {
 			void *base;
 			void *idm_base;
+			void *nicpm_base;
 		} plat;
 		struct {
 			struct bcma_device *core;
-- 
2.7.4

Re: [PATCH v6 6/7] net: ethernet: bgmac: add NS2 support

[Rafal Milecki]

On 11/04/2016 06:11 AM, Jon Mason wrote:
> Add support for the variant of amac hardware present in the Broadcom
> Northstar2 based SoCs.  Northstar2 requires an additional register to be
> configured with the port speed/duplexity (NICPM).  This can be added to
> the link callback to hide it from the instances that do not use this.
> Also, clearing of the pending interrupts on init is required due to
> observed issues on some platforms.
>
> Signed-off-by: Jon Mason <jon.mason@broadcom.com>
> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>

Checked for possible regressions on Northstar, looks OK.

Acked-by: Rafał Miłecki <rafal@milecki.pl>

_______________________________________________
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Re: [PATCH v6 6/7] net: ethernet: bgmac: add NS2 support

[Rafał Miłecki]

On 2016-11-04 06:11, Jon Mason wrote:
> Add support for the variant of amac hardware present in the Broadcom
> Northstar2 based SoCs.  Northstar2 requires an additional register to 
> be
> configured with the port speed/duplexity (NICPM).  This can be added to
> the link callback to hide it from the instances that do not use this.
> Also, clearing of the pending interrupts on init is required due to
> observed issues on some platforms.
> 
> Signed-off-by: Jon Mason <jon.mason-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>
> Reviewed-by: Florian Fainelli <f.fainelli-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>

[Resending from Roundcube due to "Wrong MIME labeling on 8-bit character 
texts."
vger.kernel.org reject when using Thunderbird]

Checked for possible regressions on Northstar, looks OK.

Acked-by: Rafał Miłecki <rafal-g1n6cQUeyibVItvQsEIGlw@public.gmane.org>
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[PATCH v6 7/7] arm64: dts: NS2: add AMAC ethernet support

[Jon Mason]

Add support for the AMAC ethernet to the Broadcom Northstar2 SoC device
tree

Signed-off-by: Jon Mason <jon.mason@broadcom.com>
---
 arch/arm64/boot/dts/broadcom/ns2-svk.dts |  5 +++++
 arch/arm64/boot/dts/broadcom/ns2.dtsi    | 12 ++++++++++++
 2 files changed, 17 insertions(+)

diff --git a/arch/arm64/boot/dts/broadcom/ns2-svk.dts b/arch/arm64/boot/dts/broadcom/ns2-svk.dts
index b09f3bc..c4d5442 100644
--- a/arch/arm64/boot/dts/broadcom/ns2-svk.dts
+++ b/arch/arm64/boot/dts/broadcom/ns2-svk.dts
@@ -56,6 +56,10 @@
 	};
 };
 
+&enet {
+	status = "ok";
+};
+
 &pci_phy0 {
 	status = "ok";
 };
@@ -174,6 +178,7 @@
 &mdio_mux_iproc {
 	mdio@10 {
 		gphy0: eth-phy@10 {
+			enet-phy-lane-swap;
 			reg = <0x10>;
 		};
 	};
diff --git a/arch/arm64/boot/dts/broadcom/ns2.dtsi b/arch/arm64/boot/dts/broadcom/ns2.dtsi
index d95dc40..773ed59 100644
--- a/arch/arm64/boot/dts/broadcom/ns2.dtsi
+++ b/arch/arm64/boot/dts/broadcom/ns2.dtsi
@@ -191,6 +191,18 @@
 
 		#include "ns2-clock.dtsi"
 
+		enet: ethernet@61000000 {
+			compatible = "brcm,ns2-amac";
+			reg = <0x61000000 0x1000>,
+			      <0x61090000 0x1000>,
+			      <0x61030000 0x100>;
+			reg-names = "amac_base", "idm_base", "nicpm_base";
+			interrupts = <GIC_SPI 341 IRQ_TYPE_LEVEL_HIGH>;
+			phy-handle = <&gphy0>;
+			phy-mode = "rgmii";
+			status = "disabled";
+		};
+
 		dma0: dma@61360000 {
 			compatible = "arm,pl330", "arm,primecell";
 			reg = <0x61360000 0x1000>;
-- 
2.7.4

Re: [PATCH v6 7/7] arm64: dts: NS2: add AMAC ethernet support

[Sergei Shtylyov]

Hello.

On 11/4/2016 8:11 AM, Jon Mason wrote:

> Add support for the AMAC ethernet to the Broadcom Northstar2 SoC device
> tree
>
> Signed-off-by: Jon Mason <jon.mason-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>
> ---
>  arch/arm64/boot/dts/broadcom/ns2-svk.dts |  5 +++++
>  arch/arm64/boot/dts/broadcom/ns2.dtsi    | 12 ++++++++++++
>  2 files changed, 17 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/broadcom/ns2-svk.dts b/arch/arm64/boot/dts/broadcom/ns2-svk.dts
> index b09f3bc..c4d5442 100644
> --- a/arch/arm64/boot/dts/broadcom/ns2-svk.dts
> +++ b/arch/arm64/boot/dts/broadcom/ns2-svk.dts
> @@ -56,6 +56,10 @@
>  	};
>  };
>
> +&enet {
> +	status = "ok";

    The spec dictates it should be "okay" (although "ok" is also recognized).

> +};
> +
>  &pci_phy0 {
>  	status = "ok";
>  };
> @@ -174,6 +178,7 @@
>  &mdio_mux_iproc {
>  	mdio@10 {
>  		gphy0: eth-phy@10 {
> +			enet-phy-lane-swap;
>  			reg = <0x10>;
>  		};
>  	};
[...]

MBR, Sergei

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Re: [PATCH v6 7/7] arm64: dts: NS2: add AMAC ethernet support

[Jon Mason]

On Fri, Nov 04, 2016 at 04:31:40PM +0300, Sergei Shtylyov wrote:
> Hello.
> 
> On 11/4/2016 8:11 AM, Jon Mason wrote:
> 
> >Add support for the AMAC ethernet to the Broadcom Northstar2 SoC device
> >tree
> >
> >Signed-off-by: Jon Mason <jon.mason@broadcom.com>
> >---
> > arch/arm64/boot/dts/broadcom/ns2-svk.dts |  5 +++++
> > arch/arm64/boot/dts/broadcom/ns2.dtsi    | 12 ++++++++++++
> > 2 files changed, 17 insertions(+)
> >
> >diff --git a/arch/arm64/boot/dts/broadcom/ns2-svk.dts b/arch/arm64/boot/dts/broadcom/ns2-svk.dts
> >index b09f3bc..c4d5442 100644
> >--- a/arch/arm64/boot/dts/broadcom/ns2-svk.dts
> >+++ b/arch/arm64/boot/dts/broadcom/ns2-svk.dts
> >@@ -56,6 +56,10 @@
> > 	};
> > };
> >
> >+&enet {
> >+	status = "ok";
> 
>    The spec dictates it should be "okay" (although "ok" is also recognized).

The rest of the file uses "ok".  So, the addition above is consistent
with the other entries.

Perhaps a patch outside this series to convert the entire file from
"ok" to "okay" would be acceptable to you.

Thanks,
Jon

> 
> >+};
> >+
> > &pci_phy0 {
> > 	status = "ok";
> > };
> >@@ -174,6 +178,7 @@
> > &mdio_mux_iproc {
> > 	mdio@10 {
> > 		gphy0: eth-phy@10 {
> >+			enet-phy-lane-swap;
> > 			reg = <0x10>;
> > 		};
> > 	};
> [...]
> 
> MBR, Sergei
> 

Re: [PATCH v6 7/7] arm64: dts: NS2: add AMAC ethernet support

[Sergei Shtylyov]

On 11/4/2016 7:30 PM, Jon Mason wrote:

>>> Add support for the AMAC ethernet to the Broadcom Northstar2 SoC device
>>> tree
>>>
>>> Signed-off-by: Jon Mason <jon.mason@broadcom.com>
>>> ---
>>> arch/arm64/boot/dts/broadcom/ns2-svk.dts |  5 +++++
>>> arch/arm64/boot/dts/broadcom/ns2.dtsi    | 12 ++++++++++++
>>> 2 files changed, 17 insertions(+)
>>>
>>> diff --git a/arch/arm64/boot/dts/broadcom/ns2-svk.dts b/arch/arm64/boot/dts/broadcom/ns2-svk.dts
>>> index b09f3bc..c4d5442 100644
>>> --- a/arch/arm64/boot/dts/broadcom/ns2-svk.dts
>>> +++ b/arch/arm64/boot/dts/broadcom/ns2-svk.dts
>>> @@ -56,6 +56,10 @@
>>> 	};
>>> };
>>>
>>> +&enet {
>>> +	status = "ok";
>>
>>    The spec dictates it should be "okay" (although "ok" is also recognized).
>
> The rest of the file uses "ok".  So, the addition above is consistent
> with the other entries.
>
> Perhaps a patch outside this series to convert the entire file from
> "ok" to "okay" would be acceptable to you.

    OK, it would...

>
> Thanks,
> Jon

MBR, Sergei

Re: [PATCH v6 0/7] add NS2 support to bgmac

[David Miller]

From: Jon Mason <jon.mason@broadcom.com>
Date: Fri,  4 Nov 2016 01:10:55 -0400

> Changes in v6:
> * Use a common bgmac_phy_connect_direct (per Rafal Milecki) 
> * Rebased on latest net-next
> * Added Reviewed-by to the relevant patches
> 
> 
> Changes in v5:
> * Change a pr_err to netdev_err (per Scott Branden)
> * Reword the lane swap binding documentation (per Andrew Lunn)
> 
> 
> Changes in v4:
> * Actually send out the lane swap binding doc patch (Per Scott Branden)
> * Remove unused #define (Per Andrew Lunn)
> 
> 
> Changes in v3:
> * Clean-up the bgmac DT binding doc (per Rob Herring)
> * Document the lane swap binding and make it generic (Per Andrew Lunn)
> 
> 
> Changes in v2:
> * Remove the PHY power-on (per Andrew Lunn)
> * Misc PHY clean-ups regarding comments and #defines (per Andrew Lunn)
>   This results on none of the original PHY code from Vikas being
>   present.  So, I'm removing him as an author and giving him
>   "Inspired-by" credit.
> * Move PHY lane swapping to PHY driver (per Andrew Lunn and Florian
>   Fainelli)
> * Remove bgmac sleep (per Florian Fainelli)
> * Re-add bgmac chip reset (per Florian Fainelli and Ray Jui)
> * Rebased on latest net-next
> * Added patch for bcm54xx_auxctl_read, which is used in the BCM54810

Series applied, thanks.