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ethernet: stmmac: dwmac-rk: Add automatic speed mode changed for 10/100/1000M

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After the completion of Clause 37 auto-negotiation, xpcs automatically
switches to the negotiated speed.

Signed-off-by: David Wu <david.wu@rock-chips.com>
Change-Id: Id8ca8cd9cb22d4adbac3cdfdf1f2f500bb0301f1
This commit is contained in:
David Wu 2021-02-18 20:02:53 +08:00 committed by Tao Huang
parent 799783d175
commit e7373a13f7
1 changed files with 17 additions and 5 deletions
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22
drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
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@ -90,12 +90,14 @@ struct rk_priv_data {
#define SR_MII_BASE (0x1F0000)
#define SR_MII1_BASE (0x1A0000)
#define VR_MII_DIG_CTRL1 (0x8000)
#define VR_MII_AN_CTRL (0x8001)
#define VR_MII_AN_INTR_STS (0x8002)
#define VR_MII_LINK_TIMER_CTRL (0x800A)
#define SR_MII_CTRL_AN_ENABLE \
(BMCR_ANENABLE | BMCR_ANRESTART | BMCR_FULLDPLX | BMCR_SPEED1000)
#define MII_MAC_AUTO_SW (0x0200)
#define PCS_MODE_OFFSET (0x1)
#define MII_AN_INTR_EN (0x1)
#define PCS_SGMII_MODE (0x2 << PCS_MODE_OFFSET)
@ -160,12 +162,13 @@ static int xpcs_soft_reset(struct rk_priv_data *bsp_priv, int dev)
static int xpcs_setup(struct rk_priv_data *bsp_priv, int mode)
{
int ret, i;
int ret, i, id = bsp_priv->bus_id;
u32 val;
if (mode == PHY_INTERFACE_MODE_QSGMII && bsp_priv->bus_id > 0)
if (mode == PHY_INTERFACE_MODE_QSGMII && id > 0)
return 0;
ret = xpcs_soft_reset(bsp_priv, bsp_priv->bus_id);
ret = xpcs_soft_reset(bsp_priv, id);
if (ret) {
dev_err(&bsp_priv->pdev->dev, "xpcs_soft_reset fail %d\n", ret);
return ret;
@ -182,11 +185,20 @@ static int xpcs_setup(struct rk_priv_data *bsp_priv, int mode)
VR_MII_CTRL_QSGMII_AN_EN);
if (mode == PHY_INTERFACE_MODE_QSGMII) {
for (i = 0; i < 4; i++)
for (i = 0; i < 4; i++) {
val = xpcs_read(bsp_priv,
SR_MII_OFFSET(i) + VR_MII_DIG_CTRL1);
xpcs_write(bsp_priv,
SR_MII_OFFSET(i) + VR_MII_DIG_CTRL1,
val | MII_MAC_AUTO_SW);
xpcs_write(bsp_priv, SR_MII_OFFSET(i) + MII_BMCR,
SR_MII_CTRL_AN_ENABLE);
}
} else {
xpcs_write(bsp_priv, SR_MII_OFFSET(bsp_priv->bus_id) + MII_BMCR,
val = xpcs_read(bsp_priv, SR_MII_OFFSET(id) + VR_MII_DIG_CTRL1);
xpcs_write(bsp_priv, SR_MII_OFFSET(id) + VR_MII_DIG_CTRL1,
val | MII_MAC_AUTO_SW);
xpcs_write(bsp_priv, SR_MII_OFFSET(id) + MII_BMCR,
SR_MII_CTRL_AN_ENABLE);
}