aboutsummaryrefslogtreecommitdiffstats
path: root/package/switch/src/switch-robo.c
diff options
context:
space:
mode:
authorHauke Mehrtens <hauke@hauke-m.de>2013-01-03 01:58:01 +0000
committerHauke Mehrtens <hauke@hauke-m.de>2013-01-03 01:58:01 +0000
commitd8f1fa1e382050139006e0f03000275e639d09fe (patch)
tree3a6b684b039b93682bbe7159bbd7df61cb06300b /package/switch/src/switch-robo.c
parent63ec34612cec4b0357d9baff3745825d3c5d544b (diff)
downloadupstream-d8f1fa1e382050139006e0f03000275e639d09fe.tar.gz
upstream-d8f1fa1e382050139006e0f03000275e639d09fe.tar.bz2
upstream-d8f1fa1e382050139006e0f03000275e639d09fe.zip
switch: ROBO Switch Gigabit MII Support
I wrote this patch some time ago because I had a need for one of the Gigabit ports (Linksys E3000) to be forced to 100FD. This is based on the robocfg sources included w/ the RT-N16 sources from ASUS. Since work is progressing on a BGMAC driver that could be included in OpenWRT, this may be useful to someone else. In testing, forcing the speed to 10/100 or 1000 worked fine; however, when trying to force full-duplex mode, the result was always half-duplex. I was not able to isolate the source of the problem (this patch, driver or H/W limitation). The only way I could get it to work was to set the port to Auto, but then only advertise 100FD (not included in this patch). I have a modified version of the robocfg package as well, I'd have to clean it up a little first (remove the full-duplex hack) before submitting it if there is interest. Signed-off-by: Nathan Hintz <nlhintz@hotmail.com> SVN-Revision: 34992
Diffstat (limited to 'package/switch/src/switch-robo.c')
-rw-r--r--package/switch/src/switch-robo.c124
1 files changed, 115 insertions, 9 deletions
diff --git a/package/switch/src/switch-robo.c b/package/switch/src/switch-robo.c
index f9b306cf10..f3a0eacf19 100644
--- a/package/switch/src/switch-robo.c
+++ b/package/switch/src/switch-robo.c
@@ -72,6 +72,7 @@ struct robo_switch {
char *device; /* The device name string (ethX) */
u16 devid; /* ROBO_DEVICE_ID_53xx */
bool is_5350;
+ u8 gmii; /* gigabit mii */
struct ifreq ifr;
struct net_device *dev;
unsigned char port[6];
@@ -147,7 +148,7 @@ static int robo_reg(__u8 page, __u8 reg, __u8 op)
printk(KERN_ERR PFX "timeout in robo_reg on page %i and reg %i with op %i.\n", page, reg, op);
- return 0;
+ return 1;
}
/*
@@ -173,7 +174,7 @@ static __u32 robo_read32(__u8 page, __u8 reg)
{
robo_reg(page, reg, REG_MII_ADDR_READ);
- return mdio_read(ROBO_PHY_ADDR, REG_MII_DATA0) +
+ return mdio_read(ROBO_PHY_ADDR, REG_MII_DATA0) |
(mdio_read(ROBO_PHY_ADDR, REG_MII_DATA0 + 1) << 16);
}
@@ -188,21 +189,40 @@ static void robo_write16(__u8 page, __u8 reg, __u16 val16)
static void robo_write32(__u8 page, __u8 reg, __u32 val32)
{
/* write data */
- mdio_write(ROBO_PHY_ADDR, REG_MII_DATA0, val32 & 65535);
+ mdio_write(ROBO_PHY_ADDR, REG_MII_DATA0, val32 & 0xFFFF);
mdio_write(ROBO_PHY_ADDR, REG_MII_DATA0 + 1, val32 >> 16);
robo_reg(page, reg, REG_MII_ADDR_WRITE);
}
-/* checks that attached switch is 5325E/5350 */
-static int robo_vlan5350(void)
+/* checks that attached switch is 5325/5352/5354/5356/5357/53115 */
+static int robo_vlan5350(__u32 phyid)
{
/* set vlan access id to 15 and read it back */
__u16 val16 = 15;
robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350, val16);
/* 5365 will refuse this as it does not have this reg */
- return (robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350) == val16);
+ if (robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350) != val16)
+ return 0;
+ /* gigabit ? */
+ if (mdio_read(0, ROBO_MII_STAT) & 0x0100)
+ robo.gmii = ((mdio_read(0, 0x0f) & 0xf000) != 0);
+ /* 53115 ? */
+ if (robo.gmii && robo_read32(ROBO_STAT_PAGE, ROBO_LSA_IM_PORT) != 0) {
+ robo_write16(ROBO_ARLIO_PAGE, ROBO_VTBL_INDX_5395, val16);
+ robo_write16(ROBO_ARLIO_PAGE, ROBO_VTBL_ACCESS_5395,
+ (1 << 7) /* start */ | 1 /* read */);
+ if (robo_read16(ROBO_ARLIO_PAGE, ROBO_VTBL_ACCESS_5395) == 1 &&
+ robo_read16(ROBO_ARLIO_PAGE, ROBO_VTBL_INDX_5395) == val16)
+ return 4;
+ }
+ /* dirty trick for 5356/5357 */
+ if ((phyid & 0xfff0ffff ) == 0x5da00362 ||
+ (phyid & 0xfff0ffff ) == 0x5e000362)
+ return 3;
+ /* 5325/5352/5354*/
+ return 1;
}
static int robo_switch_enable(void)
@@ -259,6 +279,7 @@ static int robo_probe(char *devname)
__u32 phyid;
unsigned int i;
int err = 1;
+ struct mii_ioctl_data *mii;
printk(KERN_INFO PFX "Probing device '%s'\n", devname);
strcpy(robo.ifr.ifr_name, devname);
@@ -285,7 +306,7 @@ static int robo_probe(char *devname)
}
/* got phy address check for robo address */
- struct mii_ioctl_data *mii = if_mii(&robo.ifr);
+ mii = if_mii(&robo.ifr);
if ((mii->phy_id != ROBO_PHY_ADDR) &&
(mii->phy_id != ROBO_PHY_ADDR_BCM63XX) &&
(mii->phy_id != ROBO_PHY_ADDR_TG3)) {
@@ -310,7 +331,7 @@ static int robo_probe(char *devname)
}
if (!robo.devid)
robo.devid = ROBO_DEVICE_ID_5325; /* Fake it */
- robo.is_5350 = robo_vlan5350();
+ robo.is_5350 = robo_vlan5350(phyid);
robo_switch_reset();
err = robo_switch_enable();
@@ -445,6 +466,80 @@ static int handle_enable_write(void *driver, char *buf, int nr)
return 0;
}
+static int handle_port_enable_read(void *driver, char *buf, int nr)
+{
+ return sprintf(buf, "%d\n", ((robo_read16(ROBO_CTRL_PAGE, robo.port[nr]) & 3) == 3 ? 0 : 1));
+}
+
+static int handle_port_enable_write(void *driver, char *buf, int nr)
+{
+ u16 val16;
+
+ if (buf[0] == '0')
+ val16 = 3; /* disabled */
+ else if (buf[0] == '1')
+ val16 = 0; /* enabled */
+ else
+ return -EINVAL;
+
+ robo_write16(ROBO_CTRL_PAGE, robo.port[nr],
+ (robo_read16(ROBO_CTRL_PAGE, robo.port[nr]) & ~3) | val16);
+
+ return 0;
+}
+
+static int handle_port_media_read(void *driver, char *buf, int nr)
+{
+ u16 bmcr = mdio_read(robo.port[nr], MII_BMCR);
+ int media, len;
+
+ if (bmcr & BMCR_ANENABLE)
+ media = SWITCH_MEDIA_AUTO;
+ else {
+ if (bmcr & BMCR_SPEED1000)
+ media = SWITCH_MEDIA_1000;
+ else if (bmcr & BMCR_SPEED100)
+ media = SWITCH_MEDIA_100;
+ else
+ media = 0;
+
+ if (bmcr & BMCR_FULLDPLX)
+ media |= SWITCH_MEDIA_FD;
+ }
+
+ len = switch_print_media(buf, media);
+ return len + sprintf(buf + len, "\n");
+}
+
+static int handle_port_media_write(void *driver, char *buf, int nr)
+{
+ int media = switch_parse_media(buf);
+ u16 bmcr, bmcr_mask;
+
+ if (media & SWITCH_MEDIA_AUTO)
+ bmcr = BMCR_ANENABLE | BMCR_ANRESTART;
+ else {
+ if (media & SWITCH_MEDIA_1000) {
+ if (!robo.gmii)
+ return -EINVAL;
+ bmcr = BMCR_SPEED1000;
+ }
+ else if (media & SWITCH_MEDIA_100)
+ bmcr = BMCR_SPEED100;
+ else
+ bmcr = 0;
+
+ if (media & SWITCH_MEDIA_FD)
+ bmcr |= BMCR_FULLDPLX;
+ }
+
+ bmcr_mask = ~(BMCR_SPEED1000 | BMCR_SPEED100 | BMCR_FULLDPLX | BMCR_ANENABLE | BMCR_ANRESTART);
+ mdio_write(robo.port[nr], MII_BMCR,
+ (mdio_read(robo.port[nr], MII_BMCR) & bmcr_mask) | bmcr);
+
+ return 0;
+}
+
static int handle_enable_vlan_read(void *driver, char *buf, int nr)
{
return sprintf(buf, "%d\n", (((robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL0) & (1 << 7)) == (1 << 7)) ? 1 : 0));
@@ -539,6 +634,17 @@ static int __init robo_init(void)
.write = handle_reset
}, { NULL, },
};
+ static const switch_config port[] = {
+ {
+ .name = "enable",
+ .read = handle_port_enable_read,
+ .write = handle_port_enable_write
+ }, {
+ .name = "media",
+ .read = handle_port_media_read,
+ .write = handle_port_media_write
+ }, { NULL, },
+ };
static const switch_config vlan[] = {
{
.name = "ports",
@@ -554,7 +660,7 @@ static int __init robo_init(void)
.ports = 6,
.vlans = 16,
.driver_handlers = cfg,
- .port_handlers = NULL,
+ .port_handlers = port,
.vlan_handlers = vlan,
};
if (robo.devid != ROBO_DEVICE_ID_5325) {