Commit 694a0006 authored by Russell King's avatar Russell King Committed by Jakub Kicinski

net: pcs: add pcs-lynx 1000BASE-X support

Add support for 1000BASE-X to pcs-lynx for the LX2160A.

This commit prepares the ground work for allowing 1G fiber connections
to be used with DPAA2 on the SolidRun CEX7 platforms.
Reviewed-by: default avatarIoana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: default avatarRussell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 8cc8993c
......@@ -11,6 +11,7 @@
#define LINK_TIMER_VAL(ns) ((u32)((ns) / SGMII_CLOCK_PERIOD_NS))
#define SGMII_AN_LINK_TIMER_NS 1600000 /* defined by SGMII spec */
#define IEEE8023_LINK_TIMER_NS 10000000
#define LINK_TIMER_LO 0x12
#define LINK_TIMER_HI 0x13
......@@ -83,6 +84,7 @@ static void lynx_pcs_get_state(struct phylink_pcs *pcs,
struct lynx_pcs *lynx = phylink_pcs_to_lynx(pcs);
switch (state->interface) {
case PHY_INTERFACE_MODE_1000BASEX:
case PHY_INTERFACE_MODE_SGMII:
case PHY_INTERFACE_MODE_QSGMII:
phylink_mii_c22_pcs_get_state(lynx->mdio, state);
......@@ -108,6 +110,30 @@ static void lynx_pcs_get_state(struct phylink_pcs *pcs,
state->link, state->an_enabled, state->an_complete);
}
static int lynx_pcs_config_1000basex(struct mdio_device *pcs,
unsigned int mode,
const unsigned long *advertising)
{
struct mii_bus *bus = pcs->bus;
int addr = pcs->addr;
u32 link_timer;
int err;
link_timer = LINK_TIMER_VAL(IEEE8023_LINK_TIMER_NS);
mdiobus_write(bus, addr, LINK_TIMER_LO, link_timer & 0xffff);
mdiobus_write(bus, addr, LINK_TIMER_HI, link_timer >> 16);
err = mdiobus_modify(bus, addr, IF_MODE,
IF_MODE_SGMII_EN | IF_MODE_USE_SGMII_AN,
0);
if (err)
return err;
return phylink_mii_c22_pcs_config(pcs, mode,
PHY_INTERFACE_MODE_1000BASEX,
advertising);
}
static int lynx_pcs_config_sgmii(struct mdio_device *pcs, unsigned int mode,
const unsigned long *advertising)
{
......@@ -163,6 +189,8 @@ static int lynx_pcs_config(struct phylink_pcs *pcs, unsigned int mode,
struct lynx_pcs *lynx = phylink_pcs_to_lynx(pcs);
switch (ifmode) {
case PHY_INTERFACE_MODE_1000BASEX:
return lynx_pcs_config_1000basex(lynx->mdio, mode, advertising);
case PHY_INTERFACE_MODE_SGMII:
case PHY_INTERFACE_MODE_QSGMII:
return lynx_pcs_config_sgmii(lynx->mdio, mode, advertising);
......@@ -185,6 +213,13 @@ static int lynx_pcs_config(struct phylink_pcs *pcs, unsigned int mode,
return 0;
}
static void lynx_pcs_an_restart(struct phylink_pcs *pcs)
{
struct lynx_pcs *lynx = phylink_pcs_to_lynx(pcs);
phylink_mii_c22_pcs_an_restart(lynx->mdio);
}
static void lynx_pcs_link_up_sgmii(struct mdio_device *pcs, unsigned int mode,
int speed, int duplex)
{
......@@ -290,6 +325,7 @@ static void lynx_pcs_link_up(struct phylink_pcs *pcs, unsigned int mode,
static const struct phylink_pcs_ops lynx_pcs_phylink_ops = {
.pcs_get_state = lynx_pcs_get_state,
.pcs_config = lynx_pcs_config,
.pcs_an_restart = lynx_pcs_an_restart,
.pcs_link_up = lynx_pcs_link_up,
};
......
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