brcm63xx: backport latest bcm63xx_enet changes from upstream

No functional changes, just simple cleanups.

Signed-off-by: Jonas Gorski <[email protected]>

target/linux/brcm63xx/patches-4.4/001-4.16-01-bcm63xx_enet-just-use-enet-as-the-clock-name.patch

@@ -0,0 +1,39 @@
+From 943b0832e0cf3afe5bd40ffb1885d06106122c5d Mon Sep 17 00:00:00 2001
+From: Jonas Gorski <[email protected]>
+Date: Sun, 16 Jul 2017 12:49:49 +0200
+Subject: [PATCH 1/4] bcm63xx_enet: just use "enet" as the clock name
+
+Now that we have the individual clocks available as "enet" we
+don't need to rely on the device id for them anymore.
+
+Signed-off-by: Jonas Gorski <[email protected]>
+---
+ drivers/net/ethernet/broadcom/bcm63xx_enet.c | 5 +----
+ 1 file changed, 1 insertion(+), 4 deletions(-)
+
+--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
++++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
+@@ -1733,7 +1733,6 @@ static int bcm_enet_probe(struct platfor
+ 	struct bcm63xx_enet_platform_data *pd;
+ 	struct resource *res_mem, *res_irq, *res_irq_rx, *res_irq_tx;
+ 	struct mii_bus *bus;
+-	const char *clk_name;
+ 	int i, ret;
+ 
+ 	if (!bcm_enet_shared_base[0])
+@@ -1774,14 +1773,12 @@ static int bcm_enet_probe(struct platfor
+ 	if (priv->mac_id == 0) {
+ 		priv->rx_chan = 0;
+ 		priv->tx_chan = 1;
+-		clk_name = "enet0";
+ 	} else {
+ 		priv->rx_chan = 2;
+ 		priv->tx_chan = 3;
+-		clk_name = "enet1";
+ 	}
+ 
+-	priv->mac_clk = devm_clk_get(&pdev->dev, clk_name);
++	priv->mac_clk = devm_clk_get(&pdev->dev, "enet");
+ 	if (IS_ERR(priv->mac_clk)) {
+ 		ret = PTR_ERR(priv->mac_clk);
+ 		goto out;

target/linux/brcm63xx/patches-4.4/001-4.16-02-bcm63xx_enet-use-platform-data-for-dma-channel-numbe.patch

@@ -0,0 +1,72 @@
+From b7d1d1f345bb3b25c360c1df812d98866e2ee7fb Mon Sep 17 00:00:00 2001
+From: Jonas Gorski <[email protected]>
+Date: Sat, 30 Sep 2017 13:50:03 +0200
+Subject: [PATCH 2/4] bcm63xx_enet: use platform data for dma channel numbers
+
+To reduce the reliance on device ids, pass the dma channel numbers to
+the enet devices as platform data.
+
+Signed-off-by: Jonas Gorski <[email protected]>
+---
+ arch/mips/bcm63xx/dev-enet.c                          |  8 ++++++++
+ arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_enet.h |  4 ++++
+ drivers/net/ethernet/broadcom/bcm63xx_enet.c          | 11 ++---------
+ 3 files changed, 14 insertions(+), 9 deletions(-)
+
+--- a/arch/mips/bcm63xx/dev-enet.c
++++ b/arch/mips/bcm63xx/dev-enet.c
+@@ -265,6 +265,14 @@ int __init bcm63xx_enet_register(int uni
+ 		dpd->dma_chan_width = ENETDMA_CHAN_WIDTH;
+ 	}
+ 
++	if (unit == 0) {
++		dpd->rx_chan = 0;
++		dpd->tx_chan = 1;
++	} else {
++		dpd->rx_chan = 2;
++		dpd->tx_chan = 3;
++	}
++
+ 	ret = platform_device_register(pdev);
+ 	if (ret)
+ 		return ret;
+--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_enet.h
++++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_enet.h
+@@ -54,6 +54,10 @@ struct bcm63xx_enet_platform_data {
+ 
+ 	/* DMA descriptor shift */
+ 	unsigned int dma_desc_shift;
++
++	/* dma channel ids */
++	int rx_chan;
++	int tx_chan;
+ };
+ 
+ /*
+--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
++++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
+@@ -1769,15 +1769,6 @@ static int bcm_enet_probe(struct platfor
+ 	priv->irq_tx = res_irq_tx->start;
+ 	priv->mac_id = pdev->id;
+ 
+-	/* get rx & tx dma channel id for this mac */
+-	if (priv->mac_id == 0) {
+-		priv->rx_chan = 0;
+-		priv->tx_chan = 1;
+-	} else {
+-		priv->rx_chan = 2;
+-		priv->tx_chan = 3;
+-	}
+-
+ 	priv->mac_clk = devm_clk_get(&pdev->dev, "enet");
+ 	if (IS_ERR(priv->mac_clk)) {
+ 		ret = PTR_ERR(priv->mac_clk);
+@@ -1809,6 +1800,8 @@ static int bcm_enet_probe(struct platfor
+ 		priv->dma_chan_width = pd->dma_chan_width;
+ 		priv->dma_has_sram = pd->dma_has_sram;
+ 		priv->dma_desc_shift = pd->dma_desc_shift;
++		priv->rx_chan = pd->rx_chan;
++		priv->tx_chan = pd->tx_chan;
+ 	}
+ 
+ 	if (priv->mac_id == 0 && priv->has_phy && !priv->use_external_mii) {

target/linux/brcm63xx/patches-4.4/001-4.16-03-bcm63xx_enet-remove-pointless-mac_id-check.patch

@@ -0,0 +1,25 @@
+From 8c61608e5dd2e15575c171ee9cd558ddc3b94962 Mon Sep 17 00:00:00 2001
+From: Jonas Gorski <[email protected]>
+Date: Sun, 17 Dec 2017 12:54:30 +0100
+Subject: [PATCH 3/4] bcm63xx_enet: remove pointless mac_id check
+
+Enabling the ephy clock for mac 1 is harmless, and the actual usage of
+the ephy is not restricted to mac 0, so we might as well remove the
+check.
+
+Signed-off-by: Jonas Gorski <[email protected]>
+---
+ drivers/net/ethernet/broadcom/bcm63xx_enet.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
++++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
+@@ -1804,7 +1804,7 @@ static int bcm_enet_probe(struct platfor
+ 		priv->tx_chan = pd->tx_chan;
+ 	}
+ 
+-	if (priv->mac_id == 0 && priv->has_phy && !priv->use_external_mii) {
++	if (priv->has_phy && !priv->use_external_mii) {
+ 		/* using internal PHY, enable clock */
+ 		priv->phy_clk = devm_clk_get(&pdev->dev, "ephy");
+ 		if (IS_ERR(priv->phy_clk)) {

target/linux/brcm63xx/patches-4.4/001-4.16-04-bcm63xx_enet-use-platform-device-id-directly-for-mii.patch

@@ -0,0 +1,46 @@
+From faea89cd893a1a7af81185f026a64dad603ef72f Mon Sep 17 00:00:00 2001
+From: Jonas Gorski <[email protected]>
+Date: Sun, 17 Dec 2017 12:58:12 +0100
+Subject: [PATCH 4/4] bcm63xx_enet: use platform device id directly for miibus
+ name
+
+Directly use the platform device for generating the miibus name. This removes
+the last user of bcm_enet_priv::mac_id and we can remove the field.
+
+Signed-off-by: Jonas Gorski <[email protected]>
+---
+ drivers/net/ethernet/broadcom/bcm63xx_enet.c | 3 +--
+ drivers/net/ethernet/broadcom/bcm63xx_enet.h | 3 ---
+ 2 files changed, 1 insertion(+), 5 deletions(-)
+
+--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
++++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
+@@ -1767,7 +1767,6 @@ static int bcm_enet_probe(struct platfor
+ 	dev->irq = priv->irq = res_irq->start;
+ 	priv->irq_rx = res_irq_rx->start;
+ 	priv->irq_tx = res_irq_tx->start;
+-	priv->mac_id = pdev->id;
+ 
+ 	priv->mac_clk = devm_clk_get(&pdev->dev, "enet");
+ 	if (IS_ERR(priv->mac_clk)) {
+@@ -1835,7 +1834,7 @@ static int bcm_enet_probe(struct platfor
+ 		bus->priv = priv;
+ 		bus->read = bcm_enet_mdio_read_phylib;
+ 		bus->write = bcm_enet_mdio_write_phylib;
+-		sprintf(bus->id, "%s-%d", pdev->name, priv->mac_id);
++		sprintf(bus->id, "%s-%d", pdev->name, pdev->id);
+ 
+ 		/* only probe bus where we think the PHY is, because
+ 		 * the mdio read operation return 0 instead of 0xffff
+--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.h
++++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.h
+@@ -192,9 +192,6 @@ struct bcm_enet_mib_counters {
+ 
+ struct bcm_enet_priv {
+ 
+-	/* mac id (from platform device id) */
+-	int mac_id;
+-
+ 	/* base remapped address of device */
+ 	void __iomem *base;
+ 

target/linux/brcm63xx/patches-4.4/339-MIPS-BCM63XX-add-support-for-BCM63268.patch

@@ -706,7 +706,7 @@ Signed-off-by: Jonas Gorski <[email protected]>
  		chan_count = 32;
  	else if (BCMCPU_IS_6345())
  		chan_count = 8;
-@@ -276,7 +277,8 @@ bcm63xx_enetsw_register(const struct bcm
+@@ -284,7 +285,8 @@ bcm63xx_enetsw_register(const struct bcm
  {
  	int ret;
  
@@ -716,7 +716,7 @@ Signed-off-by: Jonas Gorski <[email protected]>
  		return -ENODEV;
  
  	ret = register_shared();
-@@ -297,6 +299,8 @@ bcm63xx_enetsw_register(const struct bcm
+@@ -305,6 +307,8 @@ bcm63xx_enetsw_register(const struct bcm
  		enetsw_pd.num_ports = ENETSW_PORTS_6328;
  	else if (BCMCPU_IS_6362() || BCMCPU_IS_6368())
  		enetsw_pd.num_ports = ENETSW_PORTS_6368;
@@ -727,7 +727,7 @@ Signed-off-by: Jonas Gorski <[email protected]>
  	enetsw_pd.dma_chan_width = ENETDMA_CHAN_WIDTH;
 --- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_enet.h
 +++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_enet.h
-@@ -62,6 +62,7 @@ struct bcm63xx_enet_platform_data {
+@@ -66,6 +66,7 @@ struct bcm63xx_enet_platform_data {
  #define ENETSW_MAX_PORT	8
  #define ENETSW_PORTS_6328 5 /* 4 FE PHY + 1 RGMII */
  #define ENETSW_PORTS_6368 6 /* 4 FE PHY + 2 RGMII */

target/linux/brcm63xx/patches-4.4/341-MIPS-BCM63XX-add-support-for-BCM6318.patch

@@ -652,7 +652,7 @@ Subject: [PATCH 51/53] MIPS: BCM63XX: add support for BCM6318
  		chan_count = 32;
  	else if (BCMCPU_IS_6345())
  		chan_count = 8;
-@@ -277,8 +277,8 @@ bcm63xx_enetsw_register(const struct bcm
+@@ -285,8 +285,8 @@ bcm63xx_enetsw_register(const struct bcm
  {
  	int ret;
  
@@ -663,7 +663,7 @@ Subject: [PATCH 51/53] MIPS: BCM63XX: add support for BCM6318
  		return -ENODEV;
  
  	ret = register_shared();
-@@ -295,7 +295,7 @@ bcm63xx_enetsw_register(const struct bcm
+@@ -303,7 +303,7 @@ bcm63xx_enetsw_register(const struct bcm
  
  	memcpy(bcm63xx_enetsw_device.dev.platform_data, pd, sizeof(*pd));
  

target/linux/brcm63xx/patches-4.4/404-NET-bcm63xx_enet-move-phy_-dis-connect-into-probe-re.patch

@@ -100,7 +100,7 @@ Signed-off-by: Jonas Gorski <[email protected]>
  	return 0;
  }
  
-@@ -1832,6 +1791,8 @@ static int bcm_enet_probe(struct platfor
+@@ -1821,6 +1780,8 @@ static int bcm_enet_probe(struct platfor
  
  	/* MII bus registration */
  	if (priv->has_phy) {
@@ -109,7 +109,7 @@ Signed-off-by: Jonas Gorski <[email protected]>
  
  		priv->mii_bus = mdiobus_alloc();
  		if (!priv->mii_bus) {
-@@ -1869,6 +1830,38 @@ static int bcm_enet_probe(struct platfor
+@@ -1858,6 +1819,38 @@ static int bcm_enet_probe(struct platfor
  			dev_err(&pdev->dev, "unable to register mdio bus\n");
  			goto out_free_mdio;
  		}
@@ -148,7 +148,7 @@ Signed-off-by: Jonas Gorski <[email protected]>
  	} else {
  
  		/* run platform code to initialize PHY device */
-@@ -1914,6 +1907,9 @@ static int bcm_enet_probe(struct platfor
+@@ -1903,6 +1896,9 @@ static int bcm_enet_probe(struct platfor
  	return 0;
  
  out_unregister_mdio:
@@ -158,7 +158,7 @@ Signed-off-by: Jonas Gorski <[email protected]>
  	if (priv->mii_bus)
  		mdiobus_unregister(priv->mii_bus);
  
-@@ -1951,6 +1947,8 @@ static int bcm_enet_remove(struct platfo
+@@ -1940,6 +1936,8 @@ static int bcm_enet_remove(struct platfo
  	enet_writel(priv, 0, ENET_MIISC_REG);
  
  	if (priv->has_phy) {

target/linux/brcm63xx/patches-4.4/408-bcm63xx_enet-enable-rgmii-clock-on-external-ports.patch

@@ -32,7 +32,7 @@ Subject: [PATCH 54/81] bcm63xx_enet: enable rgmii clock on external ports
  #define ENETSW_MDIOC_EXT_MASK		(1 << 16)
 --- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
 +++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
-@@ -2223,6 +2223,18 @@ static int bcm_enetsw_open(struct net_de
+@@ -2212,6 +2212,18 @@ static int bcm_enetsw_open(struct net_de
  		priv->sw_port_link[i] = 0;
  	}
  

target/linux/brcm63xx/patches-4.4/423-bcm63xx_enet_add_b53_support.patch

@@ -1,6 +1,6 @@
 --- a/drivers/net/ethernet/broadcom/bcm63xx_enet.h
 +++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.h
-@@ -335,6 +335,9 @@ struct bcm_enet_priv {
+@@ -332,6 +332,9 @@ struct bcm_enet_priv {
  	struct bcm63xx_enetsw_port used_ports[ENETSW_MAX_PORT];
  	int sw_port_link[ENETSW_MAX_PORT];
  
@@ -20,7 +20,7 @@
  
  #include <bcm63xx_dev_enet.h>
  #include "bcm63xx_enet.h"
-@@ -1968,7 +1969,8 @@ static int bcm_enet_remove(struct platfo
+@@ -1957,7 +1958,8 @@ static int bcm_enet_remove(struct platfo
  	return 0;
  }
  
@@ -30,7 +30,7 @@
  	.probe	= bcm_enet_probe,
  	.remove	= bcm_enet_remove,
  	.driver	= {
-@@ -1977,6 +1979,42 @@ struct platform_driver bcm63xx_enet_driv
+@@ -1966,6 +1968,42 @@ struct platform_driver bcm63xx_enet_driv
  	},
  };
  
@@ -73,7 +73,7 @@
  /*
   * switch mii access callbacks
   */
-@@ -2235,29 +2273,6 @@ static int bcm_enetsw_open(struct net_de
+@@ -2224,29 +2262,6 @@ static int bcm_enetsw_open(struct net_de
  		enetsw_writeb(priv, rgmii_ctrl, ENETSW_RGMII_CTRL_REG(i));
  	}
  
@@ -103,7 +103,7 @@
  	/* initialize flow control buffer allocation */
  	enet_dma_writel(priv, ENETDMA_BUFALLOC_FORCE_MASK | 0,
  			ENETDMA_BUFALLOC_REG(priv->rx_chan));
-@@ -2716,6 +2731,9 @@ static int bcm_enetsw_probe(struct platf
+@@ -2705,6 +2720,9 @@ static int bcm_enetsw_probe(struct platf
  	struct bcm63xx_enetsw_platform_data *pd;
  	struct resource *res_mem;
  	int ret, irq_rx, irq_tx;
@@ -113,7 +113,7 @@
  
  	if (!bcm_enet_shared_base[0])
  		return -EPROBE_DEFER;
-@@ -2798,6 +2816,43 @@ static int bcm_enetsw_probe(struct platf
+@@ -2787,6 +2805,43 @@ static int bcm_enetsw_probe(struct platf
  	priv->pdev = pdev;
  	priv->net_dev = dev;
  
@@ -157,7 +157,7 @@
  	return 0;
  
  out_disable_clk:
-@@ -2819,6 +2874,9 @@ static int bcm_enetsw_remove(struct plat
+@@ -2808,6 +2863,9 @@ static int bcm_enetsw_remove(struct plat
  	priv = netdev_priv(dev);
  	unregister_netdev(dev);
  

target/linux/brcm63xx/patches-4.4/424-bcm63xx_enet_no_request_mem_region.patch

@@ -1,6 +1,6 @@
 --- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
 +++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
-@@ -2775,9 +2775,9 @@ static int bcm_enetsw_probe(struct platf
+@@ -2764,9 +2764,9 @@ static int bcm_enetsw_probe(struct platf
  	if (ret)
  		goto out;
  

target/linux/brcm63xx/patches-4.4/804-bcm63xx_enet_63268_rgmii_ports.patch

@@ -1,6 +1,6 @@
 --- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
 +++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
-@@ -2270,6 +2270,10 @@ static int bcm_enetsw_open(struct net_de
+@@ -2259,6 +2259,10 @@ static int bcm_enetsw_open(struct net_de
  
  		rgmii_ctrl = enetsw_readb(priv, ENETSW_RGMII_CTRL_REG(i));
  		rgmii_ctrl |= ENETSW_RGMII_CTRL_GMII_CLK_EN;