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authorRafał Miłecki <rafal@milecki.pl>2017-10-13 10:22:41 +0200
committerRafał Miłecki <rafal@milecki.pl>2017-10-13 13:54:22 +0200
commit2cd32a3304cd52411da2dfac6db429efcad74ac8 (patch)
treeaa47d9c3ee421f14df8b9fd7a27e0a852110058c /target/linux/generic/pending-4.4/078-0004-net-phy-cherry-pick-Broadcom-drivers-updates-from-v4.patch
parent878456caf60dc5016a63e2ebd3dfe6b233f67b81 (diff)
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kernel: add fix for bgmac with B50212E B1 PHY
This PHY requires some extra programming to work reliably with all devices. Backport upstream fix for it. Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Diffstat (limited to 'target/linux/generic/pending-4.4/078-0004-net-phy-cherry-pick-Broadcom-drivers-updates-from-v4.patch')
-rw-r--r--target/linux/generic/pending-4.4/078-0004-net-phy-cherry-pick-Broadcom-drivers-updates-from-v4.patch283
1 files changed, 283 insertions, 0 deletions
diff --git a/target/linux/generic/pending-4.4/078-0004-net-phy-cherry-pick-Broadcom-drivers-updates-from-v4.patch b/target/linux/generic/pending-4.4/078-0004-net-phy-cherry-pick-Broadcom-drivers-updates-from-v4.patch
new file mode 100644
index 0000000000..269c4e7247
--- /dev/null
+++ b/target/linux/generic/pending-4.4/078-0004-net-phy-cherry-pick-Broadcom-drivers-updates-from-v4.patch
@@ -0,0 +1,283 @@
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Subject: [PATCH] net: phy: cherry-pick Broadcom drivers updates from v4.11
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This includes following upstream commits:
+62e13097c46c net: phy: broadcom: rehook BCM54612E specific init
+0fc9ae107669 net: phy: broadcom: add support for BCM54210E
+5e7bfa6cb0a9 net: phy: bcm-phy-lib: clean up remaining AUXCTL register defines
+8293c7bcdef1 net: phy: broadcom: drop duplicated define for RGMII SKEW delay
+85b4685da52f net: phy: broadcom: use auxctl reading helper in BCM54612E code
+039a7b8592ab net: phy: bcm7xxx: Implement EGPHY workaround for 7278
+582d0ac397ca net: phy: bcm7xxx: Add entry for BCM7278
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+---
+
+--- a/drivers/net/phy/bcm7xxx.c
++++ b/drivers/net/phy/bcm7xxx.c
+@@ -163,12 +163,43 @@ static int bcm7xxx_28nm_e0_plus_afe_conf
+ return 0;
+ }
+
++static int bcm7xxx_28nm_a0_patch_afe_config_init(struct phy_device *phydev)
++{
++ /* +1 RC_CAL codes for RL centering for both LT and HT conditions */
++ bcm_phy_write_misc(phydev, AFE_RXCONFIG_2, 0xd003);
++
++ /* Cut master bias current by 2% to compensate for RC_CAL offset */
++ bcm_phy_write_misc(phydev, DSP_TAP10, 0x791b);
++
++ /* Improve hybrid leakage */
++ bcm_phy_write_misc(phydev, AFE_HPF_TRIM_OTHERS, 0x10e3);
++
++ /* Change rx_on_tune 8 to 0xf */
++ bcm_phy_write_misc(phydev, 0x21, 0x2, 0x87f6);
++
++ /* Change 100Tx EEE bandwidth */
++ bcm_phy_write_misc(phydev, 0x22, 0x2, 0x017d);
++
++ /* Enable ffe zero detection for Vitesse interoperability */
++ bcm_phy_write_misc(phydev, 0x26, 0x2, 0x0015);
++
++ r_rc_cal_reset(phydev);
++
++ return 0;
++}
++
+ static int bcm7xxx_28nm_config_init(struct phy_device *phydev)
+ {
+ u8 rev = PHY_BRCM_7XXX_REV(phydev->dev_flags);
+ u8 patch = PHY_BRCM_7XXX_PATCH(phydev->dev_flags);
+ int ret = 0;
+
++ /* Newer devices have moved the revision information back into a
++ * standard location in MII_PHYS_ID[23]
++ */
++ if (rev == 0)
++ rev = phydev->phy_id & ~phydev->drv->phy_id_mask;
++
+ pr_info_once("%s: %s PHY revision: 0x%02x, patch: %d\n",
+ dev_name(&phydev->dev), phydev->drv->name, rev, patch);
+
+@@ -192,6 +223,9 @@ static int bcm7xxx_28nm_config_init(stru
+ case 0x10:
+ ret = bcm7xxx_28nm_e0_plus_afe_config_init(phydev);
+ break;
++ case 0x01:
++ ret = bcm7xxx_28nm_a0_patch_afe_config_init(phydev);
++ break;
+ default:
+ break;
+ }
+@@ -336,6 +370,7 @@ static int bcm7xxx_suspend(struct phy_de
+
+ static struct phy_driver bcm7xxx_driver[] = {
+ BCM7XXX_28NM_GPHY(PHY_ID_BCM7250, "Broadcom BCM7250"),
++ BCM7XXX_28NM_GPHY(PHY_ID_BCM7278, "Broadcom BCM7278"),
+ BCM7XXX_28NM_GPHY(PHY_ID_BCM7364, "Broadcom BCM7364"),
+ BCM7XXX_28NM_GPHY(PHY_ID_BCM7366, "Broadcom BCM7366"),
+ BCM7XXX_28NM_GPHY(PHY_ID_BCM7439, "Broadcom BCM7439"),
+@@ -350,6 +385,7 @@ static struct phy_driver bcm7xxx_driver[
+
+ static struct mdio_device_id __maybe_unused bcm7xxx_tbl[] = {
+ { PHY_ID_BCM7250, 0xfffffff0, },
++ { PHY_ID_BCM7278, 0xfffffff0, },
+ { PHY_ID_BCM7364, 0xfffffff0, },
+ { PHY_ID_BCM7366, 0xfffffff0, },
+ { PHY_ID_BCM7346, 0xfffffff0, },
+--- a/drivers/net/phy/broadcom.c
++++ b/drivers/net/phy/broadcom.c
+@@ -30,6 +30,50 @@ MODULE_DESCRIPTION("Broadcom PHY driver"
+ MODULE_AUTHOR("Maciej W. Rozycki");
+ MODULE_LICENSE("GPL");
+
++static int bcm54210e_config_init(struct phy_device *phydev)
++{
++ int val;
++
++ 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;
++ bcm54xx_auxctl_write(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC, val);
++
++ val = bcm_phy_read_shadow(phydev, BCM54810_SHD_CLK_CTL);
++ val &= ~BCM54810_SHD_CLK_CTL_GTXCLK_EN;
++ bcm_phy_write_shadow(phydev, BCM54810_SHD_CLK_CTL, val);
++
++ return 0;
++}
++
++static int bcm54612e_config_init(struct phy_device *phydev)
++{
++ /* Clear TX internal delay unless requested. */
++ if ((phydev->interface != PHY_INTERFACE_MODE_RGMII_ID) &&
++ (phydev->interface != PHY_INTERFACE_MODE_RGMII_TXID)) {
++ /* Disable TXD to GTXCLK clock delay (default set) */
++ /* Bit 9 is the only field in shadow register 00011 */
++ bcm_phy_write_shadow(phydev, 0x03, 0);
++ }
++
++ /* Clear RX internal delay unless requested. */
++ if ((phydev->interface != PHY_INTERFACE_MODE_RGMII_ID) &&
++ (phydev->interface != PHY_INTERFACE_MODE_RGMII_RXID)) {
++ u16 reg;
++
++ reg = bcm54xx_auxctl_read(phydev,
++ MII_BCM54XX_AUXCTL_SHDWSEL_MISC);
++ /* Disable RXD to RXC delay (default set) */
++ reg &= ~MII_BCM54XX_AUXCTL_SHDWSEL_MISC_RGMII_SKEW_EN;
++ /* Clear shadow selector field */
++ reg &= ~MII_BCM54XX_AUXCTL_SHDWSEL_MASK;
++ bcm54xx_auxctl_write(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC,
++ MII_BCM54XX_AUXCTL_MISC_WREN | reg);
++ }
++
++ return 0;
++}
++
+ static int bcm54810_config(struct phy_device *phydev)
+ {
+ int rc, val;
+@@ -230,7 +274,15 @@ static int bcm54xx_config_init(struct ph
+ (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE))
+ bcm54xx_adjust_rxrefclk(phydev);
+
+- if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM54810) {
++ if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM54210E) {
++ err = bcm54210e_config_init(phydev);
++ if (err)
++ return err;
++ } else if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM54612E) {
++ err = bcm54612e_config_init(phydev);
++ if (err)
++ return err;
++ } else if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM54810) {
+ err = bcm54810_config(phydev);
+ if (err)
+ return err;
+@@ -375,41 +427,6 @@ static int bcm5481_config_aneg(struct ph
+ return ret;
+ }
+
+-static int bcm54612e_config_aneg(struct phy_device *phydev)
+-{
+- int ret;
+-
+- /* First, auto-negotiate. */
+- ret = genphy_config_aneg(phydev);
+-
+- /* Clear TX internal delay unless requested. */
+- if ((phydev->interface != PHY_INTERFACE_MODE_RGMII_ID) &&
+- (phydev->interface != PHY_INTERFACE_MODE_RGMII_TXID)) {
+- /* Disable TXD to GTXCLK clock delay (default set) */
+- /* Bit 9 is the only field in shadow register 00011 */
+- bcm_phy_write_shadow(phydev, 0x03, 0);
+- }
+-
+- /* Clear RX internal delay unless requested. */
+- if ((phydev->interface != PHY_INTERFACE_MODE_RGMII_ID) &&
+- (phydev->interface != PHY_INTERFACE_MODE_RGMII_RXID)) {
+- u16 reg;
+-
+- /* Errata: reads require filling in the write selector field */
+- bcm54xx_auxctl_write(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC,
+- MII_BCM54XX_AUXCTL_MISC_RDSEL_MISC);
+- reg = phy_read(phydev, MII_BCM54XX_AUX_CTL);
+- /* Disable RXD to RXC delay (default set) */
+- reg &= ~MII_BCM54XX_AUXCTL_MISC_RXD_RXC_SKEW;
+- /* Clear shadow selector field */
+- reg &= ~MII_BCM54XX_AUXCTL_SHDWSEL_MASK;
+- bcm54xx_auxctl_write(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC,
+- MII_BCM54XX_AUXCTL_MISC_WREN | reg);
+- }
+-
+- return ret;
+-}
+-
+ static int brcm_phy_setbits(struct phy_device *phydev, int reg, int set)
+ {
+ int val;
+@@ -548,6 +565,19 @@ static struct phy_driver broadcom_driver
+ .config_intr = bcm_phy_config_intr,
+ .driver = { .owner = THIS_MODULE },
+ }, {
++ .phy_id = PHY_ID_BCM54210E,
++ .phy_id_mask = 0xfffffff0,
++ .name = "Broadcom BCM54210E",
++ .features = PHY_GBIT_FEATURES |
++ SUPPORTED_Pause | SUPPORTED_Asym_Pause,
++ .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
++ .config_init = bcm54xx_config_init,
++ .config_aneg = genphy_config_aneg,
++ .read_status = genphy_read_status,
++ .ack_interrupt = bcm_phy_ack_intr,
++ .config_intr = bcm_phy_config_intr,
++ .driver = { .owner = THIS_MODULE },
++}, {
+ .phy_id = PHY_ID_BCM5461,
+ .phy_id_mask = 0xfffffff0,
+ .name = "Broadcom BCM5461",
+@@ -568,7 +598,7 @@ static struct phy_driver broadcom_driver
+ SUPPORTED_Pause | SUPPORTED_Asym_Pause,
+ .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
+ .config_init = bcm54xx_config_init,
+- .config_aneg = bcm54612e_config_aneg,
++ .config_aneg = genphy_config_aneg,
+ .read_status = genphy_read_status,
+ .ack_interrupt = bcm_phy_ack_intr,
+ .config_intr = bcm_phy_config_intr,
+@@ -708,6 +738,7 @@ module_phy_driver(broadcom_drivers);
+ static struct mdio_device_id __maybe_unused broadcom_tbl[] = {
+ { PHY_ID_BCM5411, 0xfffffff0 },
+ { PHY_ID_BCM5421, 0xfffffff0 },
++ { PHY_ID_BCM54210E, 0xfffffff0 },
+ { PHY_ID_BCM5461, 0xfffffff0 },
+ { PHY_ID_BCM54612E, 0xfffffff0 },
+ { PHY_ID_BCM54616S, 0xfffffff0 },
+--- a/include/linux/brcmphy.h
++++ b/include/linux/brcmphy.h
+@@ -17,6 +17,7 @@
+ #define PHY_ID_BCM5482 0x0143bcb0
+ #define PHY_ID_BCM5411 0x00206070
+ #define PHY_ID_BCM5421 0x002060e0
++#define PHY_ID_BCM54210E 0x600d84a0
+ #define PHY_ID_BCM5464 0x002060b0
+ #define PHY_ID_BCM5461 0x002060c0
+ #define PHY_ID_BCM54612E 0x03625e60
+@@ -24,6 +25,7 @@
+ #define PHY_ID_BCM57780 0x03625d90
+
+ #define PHY_ID_BCM7250 0xae025280
++#define PHY_ID_BCM7278 0xae0251a0
+ #define PHY_ID_BCM7364 0xae025260
+ #define PHY_ID_BCM7366 0x600d8490
+ #define PHY_ID_BCM7346 0x600d8650
+@@ -103,18 +105,17 @@
+ /*
+ * AUXILIARY CONTROL SHADOW ACCESS REGISTERS. (PHY REG 0x18)
+ */
+-#define MII_BCM54XX_AUXCTL_SHDWSEL_AUXCTL 0x0000
++#define MII_BCM54XX_AUXCTL_SHDWSEL_AUXCTL 0x00
+ #define MII_BCM54XX_AUXCTL_ACTL_TX_6DB 0x0400
+ #define MII_BCM54XX_AUXCTL_ACTL_SMDSP_ENA 0x0800
+
+-#define MII_BCM54XX_AUXCTL_MISC_WREN 0x8000
+-#define MII_BCM54XX_AUXCTL_MISC_RXD_RXC_SKEW 0x0100
+-#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_MISC_RGMII_SKEW_EN (1 << 8)
++#define MII_BCM54XX_AUXCTL_SHDWSEL_MISC 0x07
++#define MII_BCM54XX_AUXCTL_SHDWSEL_MISC_WIRESPEED_EN 0x0010
++#define MII_BCM54XX_AUXCTL_SHDWSEL_MISC_RGMII_SKEW_EN 0x0100
++#define MII_BCM54XX_AUXCTL_MISC_FORCE_AMDIX 0x0200
++#define MII_BCM54XX_AUXCTL_MISC_WREN 0x8000
+
++#define MII_BCM54XX_AUXCTL_SHDWSEL_READ_SHIFT 12
+ #define MII_BCM54XX_AUXCTL_SHDWSEL_MASK 0x0007
+
+ /*