Author: adrian
Date: Wed Feb 26 01:46:42 2014
New Revision: 262517
URL: http://svnweb.freebsd.org/changeset/base/262517
Log:
Add in the SGMII configuration code. The DB120 doesn't use it, so I
have no way to evaluate it.
Obtained from: OpenWRT
Modified:
head/sys/dev/etherswitch/arswitch/arswitch_8327.c
Modified: head/sys/dev/etherswitch/arswitch/arswitch_8327.c
==============================================================================
--- head/sys/dev/etherswitch/arswitch/arswitch_8327.c Wed Feb 26 01:36:02
2014 (r262516)
+++ head/sys/dev/etherswitch/arswitch/arswitch_8327.c Wed Feb 26 01:46:42
2014 (r262517)
@@ -407,6 +407,34 @@ ar8327_fetch_pdata_pad(struct arswitch_s
}
/*
+ * Fetch the SGMII configuration block from the boot hints.
+ */
+static int
+ar8327_fetch_pdata_sgmii(struct arswitch_softc *sc,
+ struct ar8327_sgmii_cfg *scfg)
+{
+ int val;
+
+ /* sgmii_ctrl */
+ val = 0;
+ if (resource_int_value(device_get_name(sc->sc_dev),
+ device_get_unit(sc->sc_dev),
+ "sgmii.ctrl", &val) != 0)
+ return (0);
+ scfg->sgmii_ctrl = val;
+
+ /* serdes_aen */
+ val = 0;
+ if (resource_int_value(device_get_name(sc->sc_dev),
+ device_get_unit(sc->sc_dev),
+ "sgmii.serdes_aen", &val) != 0)
+ return (0);
+ scfg->serdes_aen = val;
+
+ return (1);
+}
+
+/*
* Initialise the ar8327 specific hardware features from
* the hints provided in the boot environment.
*/
@@ -415,7 +443,8 @@ ar8327_init_pdata(struct arswitch_softc
{
struct ar8327_pad_cfg pc;
struct ar8327_port_cfg port_cfg;
- uint32_t t;
+ struct ar8327_sgmii_cfg scfg;
+ uint32_t t, new_pos, pos;
/* Port 0 */
bzero(&port_cfg, sizeof(port_cfg));
@@ -454,9 +483,33 @@ ar8327_init_pdata(struct arswitch_softc
t = ar8327_get_pad_cfg(&pc);
arswitch_writereg(sc->sc_dev, AR8327_REG_PAD6_MODE, t);
+ pos = arswitch_readreg(sc->sc_dev, AR8327_REG_POWER_ON_STRIP);
+ new_pos = pos;
+
/* XXX LED config */
- /* XXX SGMII config */
+ /* SGMII config */
+ bzero(&scfg, sizeof(scfg));
+ if (ar8327_fetch_pdata_sgmii(sc, &scfg)) {
+ t = scfg.sgmii_ctrl;
+ if (sc->chip_rev == 1)
+ t |= AR8327_SGMII_CTRL_EN_PLL |
+ AR8327_SGMII_CTRL_EN_RX |
+ AR8327_SGMII_CTRL_EN_TX;
+ else
+ t &= ~(AR8327_SGMII_CTRL_EN_PLL |
+ AR8327_SGMII_CTRL_EN_RX |
+ AR8327_SGMII_CTRL_EN_TX);
+
+ arswitch_writereg(sc->sc_dev, AR8327_REG_SGMII_CTRL, t);
+
+ if (scfg.serdes_aen)
+ new_pos &= ~AR8327_POWER_ON_STRIP_SERDES_AEN;
+ else
+ new_pos |= AR8327_POWER_ON_STRIP_SERDES_AEN;
+ }
+
+ arswitch_writereg(sc->sc_dev, AR8327_REG_POWER_ON_STRIP, new_pos);
return (0);
}
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