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ag7xxx: add initial support for s17

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S17 ethernet support is for QCA8337N, which used on
AP152 (QCA9563) board. It is a 7 ports GbE switch.

Signed-off-by: Rosy Song <rosysong@rosinson.com>

Changes for v2-v3:
   - add more commit message for s17

Changes for v4-v5:
   - coding style cleanup
This commit is contained in:
Rosy Song 2019-03-16 09:24:50 +08:00 committed by Daniel Schwierzeck
parent 61290fb52c
commit 8426523af1
1 changed files with 123 additions and 16 deletions
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139
drivers/net/ag7xxx.c
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@ -3,6 +3,7 @@
* Atheros AR71xx / AR9xxx GMAC driver
*
* Copyright (C) 2016 Marek Vasut <marex@denx.de>
* Copyright (C) 2019 Rosy Song <rosysong@rosinson.com>
*/
#include <common.h>
@ -23,7 +24,8 @@ DECLARE_GLOBAL_DATA_PTR;
enum ag7xxx_model {
AG7XXX_MODEL_AG933X,
AG7XXX_MODEL_AG934X,
AG7XXX_MODEL_AG953X
AG7XXX_MODEL_AG953X,
AG7XXX_MODEL_AG956X
};
/* MAC Configuration 1 */
@ -219,6 +221,7 @@ static int ag7xxx_switch_reg_read(struct mii_dev *bus, int reg, u32 *val)
u32 reg_addr;
u32 phy_temp;
u32 reg_temp;
u32 reg_temp_w = (reg & 0xfffffffc) >> 1;
u16 rv = 0;
int ret;
@ -226,18 +229,25 @@ static int ag7xxx_switch_reg_read(struct mii_dev *bus, int reg, u32 *val)
priv->model == AG7XXX_MODEL_AG953X) {
phy_addr = 0x1f;
reg_addr = 0x10;
} else if (priv->model == AG7XXX_MODEL_AG934X) {
} else if (priv->model == AG7XXX_MODEL_AG934X ||
priv->model == AG7XXX_MODEL_AG956X) {
phy_addr = 0x18;
reg_addr = 0x00;
} else
return -EINVAL;
ret = ag7xxx_switch_write(bus, phy_addr, reg_addr, reg >> 9);
if (priv->model == AG7XXX_MODEL_AG956X)
ret = ag7xxx_switch_write(bus, phy_addr, reg_addr, (reg >> 9) & 0x1ff);
else
ret = ag7xxx_switch_write(bus, phy_addr, reg_addr, reg >> 9);
if (ret)
return ret;
phy_temp = ((reg >> 6) & 0x7) | 0x10;
reg_temp = (reg >> 1) & 0x1e;
if (priv->model == AG7XXX_MODEL_AG956X)
reg_temp = reg_temp_w & 0x1f;
else
reg_temp = (reg >> 1) & 0x1e;
*val = 0;
ret = ag7xxx_switch_read(bus, phy_temp, reg_temp | 0, &rv);
@ -245,7 +255,13 @@ static int ag7xxx_switch_reg_read(struct mii_dev *bus, int reg, u32 *val)
return ret;
*val |= rv;
ret = ag7xxx_switch_read(bus, phy_temp, reg_temp | 1, &rv);
if (priv->model == AG7XXX_MODEL_AG956X) {
phy_temp = (((reg_temp_w + 1) >> 5) & 0x7) | 0x10;
reg_temp = (reg_temp_w + 1) & 0x1f;
ret = ag7xxx_switch_read(bus, phy_temp, reg_temp, &rv);
} else {
ret = ag7xxx_switch_read(bus, phy_temp, reg_temp | 1, &rv);
}
if (ret < 0)
return ret;
*val |= (rv << 16);
@ -260,24 +276,34 @@ static int ag7xxx_switch_reg_write(struct mii_dev *bus, int reg, u32 val)
u32 reg_addr;
u32 phy_temp;
u32 reg_temp;
u32 reg_temp_w = (reg & 0xfffffffc) >> 1;
int ret;
if (priv->model == AG7XXX_MODEL_AG933X ||
priv->model == AG7XXX_MODEL_AG953X) {
phy_addr = 0x1f;
reg_addr = 0x10;
} else if (priv->model == AG7XXX_MODEL_AG934X) {
} else if (priv->model == AG7XXX_MODEL_AG934X ||
priv->model == AG7XXX_MODEL_AG956X) {
phy_addr = 0x18;
reg_addr = 0x00;
} else
return -EINVAL;
ret = ag7xxx_switch_write(bus, phy_addr, reg_addr, reg >> 9);
if (priv->model == AG7XXX_MODEL_AG956X)
ret = ag7xxx_switch_write(bus, phy_addr, reg_addr, (reg >> 9) & 0x1ff);
else
ret = ag7xxx_switch_write(bus, phy_addr, reg_addr, reg >> 9);
if (ret)
return ret;
phy_temp = ((reg >> 6) & 0x7) | 0x10;
reg_temp = (reg >> 1) & 0x1e;
if (priv->model == AG7XXX_MODEL_AG956X) {
reg_temp = (reg_temp_w + 1) & 0x1f;
phy_temp = (((reg_temp_w + 1) >> 5) & 0x7) | 0x10;
} else {
phy_temp = ((reg >> 6) & 0x7) | 0x10;
reg_temp = (reg >> 1) & 0x1e;
}
/*
* The switch on AR933x has some special register behavior, which
@ -296,10 +322,18 @@ static int ag7xxx_switch_reg_write(struct mii_dev *bus, int reg, u32 val)
if (ret < 0)
return ret;
} else {
ret = ag7xxx_switch_write(bus, phy_temp, reg_temp | 1, val >> 16);
if (priv->model == AG7XXX_MODEL_AG956X)
ret = ag7xxx_switch_write(bus, phy_temp, reg_temp, val >> 16);
else
ret = ag7xxx_switch_write(bus, phy_temp, reg_temp | 1, val >> 16);
if (ret < 0)
return ret;
if (priv->model == AG7XXX_MODEL_AG956X) {
phy_temp = ((reg_temp_w >> 5) & 0x7) | 0x10;
reg_temp = reg_temp_w & 0x1f;
}
ret = ag7xxx_switch_write(bus, phy_temp, reg_temp | 0, val & 0xffff);
if (ret < 0)
return ret;
@ -626,9 +660,12 @@ static int ag7xxx_mii_setup(struct udevice *dev)
reg = 0x4;
else if (priv->model == AG7XXX_MODEL_AG953X)
reg = 0x2;
else if (priv->model == AG7XXX_MODEL_AG956X)
reg = 0x7;
if (priv->model == AG7XXX_MODEL_AG934X ||
priv->model == AG7XXX_MODEL_AG953X) {
priv->model == AG7XXX_MODEL_AG953X ||
priv->model == AG7XXX_MODEL_AG956X) {
writel(AG7XXX_ETH_MII_MGMT_CFG_RESET | reg,
priv->regs + AG7XXX_ETH_MII_MGMT_CFG);
writel(reg, priv->regs + AG7XXX_ETH_MII_MGMT_CFG);
@ -839,7 +876,8 @@ static int ag933x_phy_setup_reset_set(struct udevice *dev, int port)
struct ar7xxx_eth_priv *priv = dev_get_priv(dev);
int ret;
if (priv->model == AG7XXX_MODEL_AG953X) {
if (priv->model == AG7XXX_MODEL_AG953X ||
priv->model == AG7XXX_MODEL_AG956X) {
ret = ag7xxx_switch_write(priv->bus, port, MII_ADVERTISE,
ADVERTISE_ALL);
} else {
@ -855,9 +893,15 @@ static int ag933x_phy_setup_reset_set(struct udevice *dev, int port)
ADVERTISE_1000FULL);
if (ret)
return ret;
} else if (priv->model == AG7XXX_MODEL_AG956X) {
ret = ag7xxx_switch_write(priv->bus, port, MII_CTRL1000,
ADVERTISE_1000FULL);
if (ret)
return ret;
}
if (priv->model == AG7XXX_MODEL_AG953X)
if (priv->model == AG7XXX_MODEL_AG953X ||
priv->model == AG7XXX_MODEL_AG956X)
return ag7xxx_switch_write(priv->bus, port, MII_BMCR,
BMCR_ANENABLE | BMCR_RESET);
@ -871,7 +915,8 @@ static int ag933x_phy_setup_reset_fin(struct udevice *dev, int port)
int ret;
u16 reg;
if (priv->model == AG7XXX_MODEL_AG953X) {
if (priv->model == AG7XXX_MODEL_AG953X ||
priv->model == AG7XXX_MODEL_AG956X) {
do {
ret = ag7xxx_switch_read(priv->bus, port, MII_BMCR, &reg);
if (ret < 0)
@ -899,7 +944,8 @@ static int ag933x_phy_setup_common(struct udevice *dev)
if (priv->model == AG7XXX_MODEL_AG933X)
phymax = 4;
else if (priv->model == AG7XXX_MODEL_AG934X ||
priv->model == AG7XXX_MODEL_AG953X)
priv->model == AG7XXX_MODEL_AG953X ||
priv->model == AG7XXX_MODEL_AG956X)
phymax = 5;
else
return -EINVAL;
@ -939,7 +985,8 @@ static int ag933x_phy_setup_common(struct udevice *dev)
for (i = 0; i < phymax; i++) {
/* Read out link status */
if (priv->model == AG7XXX_MODEL_AG953X)
if (priv->model == AG7XXX_MODEL_AG953X ||
priv->model == AG7XXX_MODEL_AG956X)
ret = ag7xxx_switch_read(priv->bus, i, MII_MIPSCR, &reg);
else
ret = ag7xxx_mdio_read(priv->bus, i, 0, MII_MIPSCR);
@ -1004,6 +1051,63 @@ static int ag934x_phy_setup(struct udevice *dev)
return 0;
}
static int ag956x_phy_setup(struct udevice *dev)
{
struct ar7xxx_eth_priv *priv = dev_get_priv(dev);
int i, ret;
u32 reg, ctrl;
ret = ag7xxx_switch_reg_read(priv->bus, 0x0, &reg);
if (ret)
return ret;
if ((reg & 0xffff) >= 0x1301)
ctrl = 0xc74164de;
else
ctrl = 0xc74164d0;
ret = ag7xxx_switch_reg_write(priv->bus, 0x4, BIT(7));
if (ret)
return ret;
ret = ag7xxx_switch_reg_write(priv->bus, 0xe0, ctrl);
if (ret)
return ret;
ret = ag7xxx_switch_reg_write(priv->bus, 0x624, 0x7f7f7f7f);
if (ret)
return ret;
/*
* Values suggested by the switch team when s17 in sgmii
* configuration. 0x10(S17_PWS_REG) = 0x602613a0
*/
ret = ag7xxx_switch_reg_write(priv->bus, 0x10, 0x602613a0);
if (ret)
return ret;
ret = ag7xxx_switch_reg_write(priv->bus, 0x7c, 0x0000007e);
if (ret)
return ret;
/* AR8337/AR8334 v1.0 fixup */
ret = ag7xxx_switch_reg_read(priv->bus, 0, &reg);
if (ret)
return ret;
if ((reg & 0xffff) == 0x1301) {
for (i = 0; i < 5; i++) {
/* Turn on Gigabit clock */
ret = ag7xxx_switch_write(priv->bus, i, 0x1d, 0x3d);
if (ret)
return ret;
ret = ag7xxx_switch_write(priv->bus, i, 0x1e, 0x6820);
if (ret)
return ret;
}
}
return 0;
}
static int ag7xxx_mac_probe(struct udevice *dev)
{
struct ar7xxx_eth_priv *priv = dev_get_priv(dev);
@ -1028,6 +1132,8 @@ static int ag7xxx_mac_probe(struct udevice *dev)
ret = ag953x_phy_setup_lan(dev);
} else if (priv->model == AG7XXX_MODEL_AG934X) {
ret = ag934x_phy_setup(dev);
} else if (priv->model == AG7XXX_MODEL_AG956X) {
ret = ag956x_phy_setup(dev);
} else {
return -EINVAL;
}
@ -1166,6 +1272,7 @@ static const struct udevice_id ag7xxx_eth_ids[] = {
{ .compatible = "qca,ag933x-mac", .data = AG7XXX_MODEL_AG933X },
{ .compatible = "qca,ag934x-mac", .data = AG7XXX_MODEL_AG934X },
{ .compatible = "qca,ag953x-mac", .data = AG7XXX_MODEL_AG953X },
{ .compatible = "qca,ag956x-mac", .data = AG7XXX_MODEL_AG956X },
{ }
};