]>
git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/blob - drivers/net/ethernet/dec/tulip/pnic.c
2 drivers/net/tulip/pnic.c
4 Copyright 2000,2001 The Linux Kernel Team
5 Written/copyright 1994-2001 by Donald Becker.
7 This software may be used and distributed according to the terms
8 of the GNU General Public License, incorporated herein by reference.
10 Please refer to Documentation/DocBook/tulip-user.{pdf,ps,html}
11 for more information on this driver.
13 Please submit bugs to http://bugzilla.kernel.org/ .
16 #include <linux/interrupt.h>
17 #include <linux/kernel.h>
18 #include <linux/jiffies.h>
22 void pnic_do_nway(struct net_device
*dev
)
24 struct tulip_private
*tp
= netdev_priv(dev
);
25 void __iomem
*ioaddr
= tp
->base_addr
;
26 u32 phy_reg
= ioread32(ioaddr
+ 0xB8);
27 u32 new_csr6
= tp
->csr6
& ~0x40C40200;
29 if (phy_reg
& 0x78000000) { /* Ignore baseT4 */
30 if (phy_reg
& 0x20000000) dev
->if_port
= 5;
31 else if (phy_reg
& 0x40000000) dev
->if_port
= 3;
32 else if (phy_reg
& 0x10000000) dev
->if_port
= 4;
33 else if (phy_reg
& 0x08000000) dev
->if_port
= 0;
35 new_csr6
= (dev
->if_port
& 1) ? 0x01860000 : 0x00420000;
36 iowrite32(0x32 | (dev
->if_port
& 1), ioaddr
+ CSR12
);
38 iowrite32(0x1F868, ioaddr
+ 0xB8);
39 if (phy_reg
& 0x30000000) {
41 new_csr6
|= 0x00000200;
44 netdev_dbg(dev
, "PNIC autonegotiated status %08x, %s\n",
45 phy_reg
, medianame
[dev
->if_port
]);
46 if (tp
->csr6
!= new_csr6
) {
49 tulip_restart_rxtx(tp
);
50 dev
->trans_start
= jiffies
;
55 void pnic_lnk_change(struct net_device
*dev
, int csr5
)
57 struct tulip_private
*tp
= netdev_priv(dev
);
58 void __iomem
*ioaddr
= tp
->base_addr
;
59 int phy_reg
= ioread32(ioaddr
+ 0xB8);
62 netdev_dbg(dev
, "PNIC link changed state %08x, CSR5 %08x\n",
64 if (ioread32(ioaddr
+ CSR5
) & TPLnkFail
) {
65 iowrite32((ioread32(ioaddr
+ CSR7
) & ~TPLnkFail
) | TPLnkPass
, ioaddr
+ CSR7
);
66 /* If we use an external MII, then we mustn't use the
67 * internal negotiation.
69 if (tulip_media_cap
[dev
->if_port
] & MediaIsMII
)
71 if (! tp
->nwayset
|| time_after(jiffies
, dev_trans_start(dev
) + 1*HZ
)) {
72 tp
->csr6
= 0x00420000 | (tp
->csr6
& 0x0000fdff);
73 iowrite32(tp
->csr6
, ioaddr
+ CSR6
);
74 iowrite32(0x30, ioaddr
+ CSR12
);
75 iowrite32(0x0201F078, ioaddr
+ 0xB8); /* Turn on autonegotiation. */
76 dev
->trans_start
= jiffies
;
78 } else if (ioread32(ioaddr
+ CSR5
) & TPLnkPass
) {
79 if (tulip_media_cap
[dev
->if_port
] & MediaIsMII
) {
81 tulip_check_duplex(dev
);
82 spin_unlock(&tp
->lock
);
86 iowrite32((ioread32(ioaddr
+ CSR7
) & ~TPLnkPass
) | TPLnkFail
, ioaddr
+ CSR7
);
90 void pnic_timer(unsigned long data
)
92 struct net_device
*dev
= (struct net_device
*)data
;
93 struct tulip_private
*tp
= netdev_priv(dev
);
94 void __iomem
*ioaddr
= tp
->base_addr
;
95 int next_tick
= 60*HZ
;
97 if(!ioread32(ioaddr
+ CSR7
)) {
98 /* the timer was called due to a work overflow
99 * in the interrupt handler. Skip the connection
100 * checks, the nic is definitively speaking with
103 goto too_good_connection
;
106 if (tulip_media_cap
[dev
->if_port
] & MediaIsMII
) {
107 spin_lock_irq(&tp
->lock
);
108 if (tulip_check_duplex(dev
) > 0)
110 spin_unlock_irq(&tp
->lock
);
112 int csr12
= ioread32(ioaddr
+ CSR12
);
113 int new_csr6
= tp
->csr6
& ~0x40C40200;
114 int phy_reg
= ioread32(ioaddr
+ 0xB8);
115 int csr5
= ioread32(ioaddr
+ CSR5
);
118 netdev_dbg(dev
, "PNIC timer PHY status %08x, %s CSR5 %08x\n",
119 phy_reg
, medianame
[dev
->if_port
], csr5
);
120 if (phy_reg
& 0x04000000) { /* Remote link fault */
121 iowrite32(0x0201F078, ioaddr
+ 0xB8);
124 } else if (phy_reg
& 0x78000000) { /* Ignore baseT4 */
127 } else if (csr5
& TPLnkFail
) { /* 100baseTx link beat */
129 netdev_dbg(dev
, "%s link beat failed, CSR12 %04x, CSR5 %08x, PHY %03x\n",
130 medianame
[dev
->if_port
],
132 ioread32(ioaddr
+ CSR5
),
133 ioread32(ioaddr
+ 0xB8));
136 } else if (tp
->nwayset
&& (dev
->if_port
& 1)) {
138 } else if (dev
->if_port
== 0) {
140 iowrite32(0x33, ioaddr
+ CSR12
);
141 new_csr6
= 0x01860000;
142 iowrite32(0x1F868, ioaddr
+ 0xB8);
145 iowrite32(0x32, ioaddr
+ CSR12
);
146 new_csr6
= 0x00420000;
147 iowrite32(0x1F078, ioaddr
+ 0xB8);
149 if (tp
->csr6
!= new_csr6
) {
152 tulip_restart_rxtx(tp
);
153 dev
->trans_start
= jiffies
;
156 "Changing PNIC configuration to %s %s-duplex, CSR6 %08x\n",
157 medianame
[dev
->if_port
],
158 tp
->full_duplex
? "full" : "half",
164 mod_timer(&tp
->timer
, RUN_AT(next_tick
));
165 if(!ioread32(ioaddr
+ CSR7
)) {
167 dev_info(&dev
->dev
, "sw timer wakeup\n");
168 disable_irq(dev
->irq
);
169 tulip_refill_rx(dev
);
170 enable_irq(dev
->irq
);
171 iowrite32(tulip_tbl
[tp
->chip_id
].valid_intrs
, ioaddr
+ CSR7
);