mvebu: import patch enabling AQR112 and AQR412 PHY

Copy and refresh patch enabling AQR112 and AQR412 Ethernet PHY from
layerscape (5.4) target to mvebu (5.4) as AQR112 can also be found
in IEI Puzzle devices.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

diff --git a/target/linux/mvebu/patches-5.4/721-net-phy-aquantia-enable-AQR112-and-AQR412.patch b/target/linux/mvebu/patches-5.4/721-net-phy-aquantia-enable-AQR112-and-AQR412.patch
new file mode 100644 (file)
index 0000000..843aa7d
--- /dev/null
+++ b/target/linux/mvebu/patches-5.4/721-net-phy-aquantia-enable-AQR112-and-AQR412.patch
@@ -0,0 +1,144 @@
+From 5f62951fba63a9f9cfff564209426bdea5fcc371 Mon Sep 17 00:00:00 2001
+From: Alex Marginean <alexandru.marginean@nxp.com>
+Date: Tue, 27 Aug 2019 15:16:56 +0300
+Subject: [PATCH] drivers: net: phy: aquantia: enable AQR112 and AQR412
+
+Adds support for AQR112 and AQR412 which is mostly based on existing code
+with the addition of code configuring the protocol on system side.
+This allows changing the system side protocol without having to deploy a
+different firmware on the PHY.
+
+Signed-off-by: Alex Marginean <alexandru.marginean@nxp.com>
+---
+ drivers/net/phy/aquantia_main.c | 88 +++++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 88 insertions(+)
+
+--- a/drivers/net/phy/aquantia_main.c
++++ b/drivers/net/phy/aquantia_main.c
+@@ -20,8 +20,11 @@
+ #define PHY_ID_AQR105 0x03a1b4a2
+ #define PHY_ID_AQR106 0x03a1b4d0
+ #define PHY_ID_AQR107 0x03a1b4e0
++#define PHY_ID_AQR112 0x03a1b662
+ #define PHY_ID_AQCS109        0x03a1b5c2
+ #define PHY_ID_AQR405 0x03a1b4b0
++#define PHY_ID_AQR412 0x03a1b712
++
+ 
+ #define MDIO_PHYXS_VEND_IF_STATUS             0xe812
+ #define MDIO_PHYXS_VEND_IF_STATUS_TYPE_MASK   GENMASK(7, 3)
+@@ -121,6 +124,29 @@
+ #define VEND1_GLOBAL_INT_VEND_MASK_GLOBAL2    BIT(1)
+ #define VEND1_GLOBAL_INT_VEND_MASK_GLOBAL3    BIT(0)
+ 
++/* registers in MDIO_MMD_VEND1 region */
++#define AQUANTIA_VND1_GLOBAL_SC                       0x000
++#define  AQUANTIA_VND1_GLOBAL_SC_LP           BIT(0xb)
++
++/* global start rate, the protocol associated with this speed is used by default
++ * on SI.
++ */
++#define AQUANTIA_VND1_GSTART_RATE             0x31a
++#define  AQUANTIA_VND1_GSTART_RATE_OFF                0
++#define  AQUANTIA_VND1_GSTART_RATE_100M               1
++#define  AQUANTIA_VND1_GSTART_RATE_1G         2
++#define  AQUANTIA_VND1_GSTART_RATE_10G                3
++#define  AQUANTIA_VND1_GSTART_RATE_2_5G               4
++#define  AQUANTIA_VND1_GSTART_RATE_5G         5
++
++/* SYSCFG registers for 100M, 1G, 2.5G, 5G, 10G */
++#define AQUANTIA_VND1_GSYSCFG_BASE            0x31b
++#define AQUANTIA_VND1_GSYSCFG_100M            0
++#define AQUANTIA_VND1_GSYSCFG_1G              1
++#define AQUANTIA_VND1_GSYSCFG_2_5G            2
++#define AQUANTIA_VND1_GSYSCFG_5G              3
++#define AQUANTIA_VND1_GSYSCFG_10G             4
++
+ struct aqr107_hw_stat {
+       const char *name;
+       int reg;
+@@ -241,6 +267,51 @@ static int aqr_config_aneg(struct phy_de
+       return genphy_c45_check_and_restart_aneg(phydev, changed);
+ }
+ 
++static struct {
++      u16 syscfg;
++      int cnt;
++      u16 start_rate;
++} aquantia_syscfg[PHY_INTERFACE_MODE_MAX] = {
++      [PHY_INTERFACE_MODE_SGMII] =      {0x04b, AQUANTIA_VND1_GSYSCFG_1G,
++                                         AQUANTIA_VND1_GSTART_RATE_1G},
++      [PHY_INTERFACE_MODE_2500BASEX] = {0x144, AQUANTIA_VND1_GSYSCFG_2_5G,
++                                         AQUANTIA_VND1_GSTART_RATE_2_5G},
++      [PHY_INTERFACE_MODE_XGMII] =      {0x100, AQUANTIA_VND1_GSYSCFG_10G,
++                                         AQUANTIA_VND1_GSTART_RATE_10G},
++      [PHY_INTERFACE_MODE_USXGMII] =    {0x080, AQUANTIA_VND1_GSYSCFG_10G,
++                                         AQUANTIA_VND1_GSTART_RATE_10G},
++};
++
++/* Sets up protocol on system side before calling aqr_config_aneg */
++static int aqr_config_aneg_set_prot(struct phy_device *phydev)
++{
++      int if_type = phydev->interface;
++      int i;
++
++      if (!aquantia_syscfg[if_type].cnt)
++              return 0;
++
++      /* set PHY in low power mode so we can configure protocols */
++      phy_write_mmd(phydev, MDIO_MMD_VEND1, AQUANTIA_VND1_GLOBAL_SC,
++                    AQUANTIA_VND1_GLOBAL_SC_LP);
++      mdelay(10);
++
++      /* set the default rate to enable the SI link */
++      phy_write_mmd(phydev, MDIO_MMD_VEND1, AQUANTIA_VND1_GSTART_RATE,
++                    aquantia_syscfg[if_type].start_rate);
++
++      for (i = 0; i <= aquantia_syscfg[if_type].cnt; i++)
++              phy_write_mmd(phydev, MDIO_MMD_VEND1,
++                            AQUANTIA_VND1_GSYSCFG_BASE + i,
++                            aquantia_syscfg[if_type].syscfg);
++
++      /* wake PHY back up */
++      phy_write_mmd(phydev, MDIO_MMD_VEND1, AQUANTIA_VND1_GLOBAL_SC, 0);
++      mdelay(10);
++
++      return aqr_config_aneg(phydev);
++}
++
+ static int aqr_config_intr(struct phy_device *phydev)
+ {
+       bool en = phydev->interrupts == PHY_INTERRUPT_ENABLED;
+@@ -682,6 +753,22 @@ static struct phy_driver aqr_driver[] =
+       .ack_interrupt  = aqr_ack_interrupt,
+       .read_status    = aqr_read_status,
+ },
++{
++      PHY_ID_MATCH_MODEL(PHY_ID_AQR112),
++      .name           = "Aquantia AQR112",
++      .config_aneg    = aqr_config_aneg_set_prot,
++      .config_intr    = aqr_config_intr,
++      .ack_interrupt  = aqr_ack_interrupt,
++      .read_status    = aqr107_read_status,
++},
++{
++      PHY_ID_MATCH_MODEL(PHY_ID_AQR412),
++      .name           = "Aquantia AQR412",
++      .config_aneg    = aqr_config_aneg_set_prot,
++      .config_intr    = aqr_config_intr,
++      .ack_interrupt  = aqr_ack_interrupt,
++      .read_status    = aqr107_read_status,
++},
+ };
+ 
+ module_phy_driver(aqr_driver);
+@@ -692,7 +779,9 @@ static struct mdio_device_id __maybe_unu
+       { PHY_ID_MATCH_MODEL(PHY_ID_AQR105) },
+       { PHY_ID_MATCH_MODEL(PHY_ID_AQR106) },
+       { PHY_ID_MATCH_MODEL(PHY_ID_AQR107) },
++      { PHY_ID_MATCH_MODEL(PHY_ID_AQR112) },
+       { PHY_ID_MATCH_MODEL(PHY_ID_AQCS109) },
++      { PHY_ID_MATCH_MODEL(PHY_ID_AQR412) },
+       { PHY_ID_MATCH_MODEL(PHY_ID_AQR405) },
+       { }
+ };