diff options
Diffstat (limited to 'target/linux')
2 files changed, 76 insertions, 0 deletions
diff --git a/target/linux/bcm4908/patches-5.4/700-net-dsa-bcm_sf2-enable-GPHY-for-switch-probing.patch b/target/linux/bcm4908/patches-5.4/700-net-dsa-bcm_sf2-enable-GPHY-for-switch-probing.patch new file mode 100644 index 0000000000..26f6216061 --- /dev/null +++ b/target/linux/bcm4908/patches-5.4/700-net-dsa-bcm_sf2-enable-GPHY-for-switch-probing.patch @@ -0,0 +1,46 @@ +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Mon, 15 Feb 2021 23:59:26 +0100 +Subject: [PATCH] net: dsa: bcm_sf2: enable GPHY for switch probing +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +GPHY needs to be enabled to succesfully probe & setup switch port +connected to it. Otherwise hardcoding PHY OUI would be required. + +Before: +brcm-sf2 80080000.switch lan4 (uninitialized): PHY [800c05c0.mdio--1:08] driver [Generic PHY] (irq=POLL) +brcm-sf2 80080000.switch lan3 (uninitialized): PHY [800c05c0.mdio--1:09] driver [Generic PHY] (irq=POLL) +brcm-sf2 80080000.switch lan2 (uninitialized): PHY [800c05c0.mdio--1:0a] driver [Generic PHY] (irq=POLL) +brcm-sf2 80080000.switch lan1 (uninitialized): PHY [800c05c0.mdio--1:0b] driver [Generic PHY] (irq=POLL) +brcm-sf2 80080000.switch wan (uninitialized): error -5 setting up PHY for tree 0, switch 0, port 7 + +After: +brcm-sf2 80080000.switch lan4 (uninitialized): PHY [800c05c0.mdio--1:08] driver [Generic PHY] (irq=POLL) +brcm-sf2 80080000.switch lan3 (uninitialized): PHY [800c05c0.mdio--1:09] driver [Generic PHY] (irq=POLL) +brcm-sf2 80080000.switch lan2 (uninitialized): PHY [800c05c0.mdio--1:0a] driver [Generic PHY] (irq=POLL) +brcm-sf2 80080000.switch lan1 (uninitialized): PHY [800c05c0.mdio--1:0b] driver [Generic PHY] (irq=POLL) +brcm-sf2 80080000.switch wan (uninitialized): PHY [800c05c0.mdio--1:0c] driver [Generic PHY] (irq=POLL) + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +--- + drivers/net/dsa/bcm_sf2.c | 4 ++++ + 1 file changed, 4 insertions(+) + +--- a/drivers/net/dsa/bcm_sf2.c ++++ b/drivers/net/dsa/bcm_sf2.c +@@ -1234,10 +1234,14 @@ static int bcm_sf2_sw_probe(struct platf + rev = reg_readl(priv, REG_PHY_REVISION); + priv->hw_params.gphy_rev = rev & PHY_REVISION_MASK; + ++ bcm_sf2_gphy_enable_set(priv->dev->ds, true); ++ + ret = b53_switch_register(dev); + if (ret) + goto out_mdio; + ++ bcm_sf2_gphy_enable_set(priv->dev->ds, false); ++ + dev_info(&pdev->dev, + "Starfighter 2 top: %x.%02x, core: %x.%02x, IRQs: %d, %d\n", + priv->hw_params.top_rev >> 8, priv->hw_params.top_rev & 0xff, diff --git a/target/linux/bcm4908/patches-5.4/701-net-dsa-bcm_sf2-keep-GPHY-enabled-on-the-BCM4908.patch b/target/linux/bcm4908/patches-5.4/701-net-dsa-bcm_sf2-keep-GPHY-enabled-on-the-BCM4908.patch new file mode 100644 index 0000000000..559430a3a7 --- /dev/null +++ b/target/linux/bcm4908/patches-5.4/701-net-dsa-bcm_sf2-keep-GPHY-enabled-on-the-BCM4908.patch @@ -0,0 +1,30 @@ +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Tue, 16 Feb 2021 00:06:35 +0100 +Subject: [PATCH] net: dsa: bcm_sf2: keep GPHY enabled on the BCM4908 + +Trying to access disabled PHY results in MDIO_READ_FAIL and: +[ 11.962886] brcm-sf2 80080000.switch wan: configuring for phy/internal link mode +[ 11.972500] 8021q: adding VLAN 0 to HW filter on device wan +[ 11.980205] ------------[ cut here ]------------ +[ 11.984885] WARNING: CPU: 0 PID: 7 at phy_error+0x10/0x58 + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +--- + drivers/net/dsa/bcm_sf2.c | 6 ++++++ + 1 file changed, 6 insertions(+) + +--- a/drivers/net/dsa/bcm_sf2.c ++++ b/drivers/net/dsa/bcm_sf2.c +@@ -1248,6 +1248,12 @@ static int bcm_sf2_sw_probe(struct platf + priv->hw_params.core_rev >> 8, priv->hw_params.core_rev & 0xff, + priv->irq0, priv->irq1); + ++ /* BCM4908 has 5 GPHYs which means bcm_sf2_port_setup() will not enable ++ * GPHY when needed. Leave it enabled here. ++ */ ++ if (priv->type == BCM4908_DEVICE_ID) ++ bcm_sf2_gphy_enable_set(priv->dev->ds, true); ++ + return 0; + + out_mdio: |