diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/dm9000.c | 66 | ||||
| -rw-r--r-- | drivers/net/dm9000.h | 11 |
2 files changed, 72 insertions, 5 deletions
diff --git a/drivers/net/dm9000.c b/drivers/net/dm9000.c index b6d4b8e1d9e2..73270d93ae38 100644 --- a/drivers/net/dm9000.c +++ b/drivers/net/dm9000.c @@ -85,6 +85,16 @@ MODULE_PARM_DESC(watchdog, "transmit timeout in milliseconds"); * these two devices. */ +/* The driver supports the original DM9000E, and now the two newer + * devices, DM9000A and DM9000B. + */ + +enum dm9000_type { + TYPE_DM9000E, /* original DM9000 */ + TYPE_DM9000A, + TYPE_DM9000B +}; + /* Structure/enum declaration ------------------------------- */ typedef struct board_info { @@ -98,9 +108,11 @@ typedef struct board_info { u16 dbug_cnt; u8 io_mode; /* 0:word, 2:byte */ u8 phy_addr; + u8 imr_all; unsigned int flags; unsigned int in_suspend :1; + enum dm9000_type type; int debug_level; void (*inblk)(void __iomem *port, void *data, int length); @@ -302,7 +314,8 @@ static void dm9000_set_io(struct board_info *db, int byte_width) static void dm9000_schedule_poll(board_info_t *db) { - schedule_delayed_work(&db->phy_poll, HZ * 2); + if (db->type == TYPE_DM9000E) + schedule_delayed_work(&db->phy_poll, HZ * 2); } /* Our watchdog timed out. Called by the networking layer */ @@ -516,6 +529,17 @@ dm9000_release_board(struct platform_device *pdev, struct board_info *db) } } +static unsigned char dm9000_type_to_char(enum dm9000_type type) +{ + switch (type) { + case TYPE_DM9000E: return 'e'; + case TYPE_DM9000A: return 'a'; + case TYPE_DM9000B: return 'b'; + } + + return '?'; +} + #define res_size(_r) (((_r)->end - (_r)->start) + 1) /* @@ -665,6 +689,23 @@ dm9000_probe(struct platform_device *pdev) goto out; } + /* Identify what type of DM9000 we are working on */ + + id_val = ior(db, DM9000_CHIPR); + dev_dbg(db->dev, "dm9000 revision 0x%02x\n", id_val); + + switch (id_val) { + case CHIPR_DM9000A: + db->type = TYPE_DM9000A; + break; + case CHIPR_DM9000B: + db->type = TYPE_DM9000B; + break; + default: + dev_dbg(db->dev, "ID %02x => defaulting to DM9000E\n", id_val); + db->type = TYPE_DM9000E; + } + /* from this point we assume that we have found a DM9000 */ /* driver system function */ @@ -715,8 +756,9 @@ dm9000_probe(struct platform_device *pdev) if (ret == 0) { DECLARE_MAC_BUF(mac); - printk("%s: dm9000 at %p,%p IRQ %d MAC: %s (%s)\n", - ndev->name, db->io_addr, db->io_data, ndev->irq, + printk(KERN_INFO "%s: dm9000%c at %p,%p IRQ %d MAC: %s (%s)\n", + ndev->name, dm9000_type_to_char(db->type), + db->io_addr, db->io_data, ndev->irq, print_mac(mac, ndev->dev_addr), mac_src); } return 0; @@ -778,6 +820,7 @@ static void dm9000_init_dm9000(struct net_device *dev) { board_info_t *db = (board_info_t *) dev->priv; + unsigned int imr; dm9000_dbg(db, 1, "entering %s\n", __func__); @@ -804,8 +847,14 @@ dm9000_init_dm9000(struct net_device *dev) /* Set address filter table */ dm9000_hash_table(dev); + imr = IMR_PAR | IMR_PTM | IMR_PRM; + if (db->type != TYPE_DM9000E) + imr |= IMR_LNKCHNG; + + db->imr_all = imr; + /* Enable TX/RX interrupt mask */ - iow(db, DM9000_IMR, IMR_PAR | IMR_PTM | IMR_PRM); + iow(db, DM9000_IMR, imr); /* Init Driver variable */ db->tx_pkt_cnt = 0; @@ -962,8 +1011,15 @@ dm9000_interrupt(int irq, void *dev_id) if (int_status & ISR_PTS) dm9000_tx_done(dev, db); + if (db->type != TYPE_DM9000E) { + if (int_status & ISR_LNKCHNG) { + /* fire a link-change request */ + schedule_delayed_work(&db->phy_poll, 1); + } + } + /* Re-enable interrupt mask */ - iow(db, DM9000_IMR, IMR_PAR | IMR_PTM | IMR_PRM); + iow(db, DM9000_IMR, db->imr_all); /* Restore previous register address */ writeb(reg_save, db->io_addr); diff --git a/drivers/net/dm9000.h b/drivers/net/dm9000.h index 82cad360bafc..ba25cf541420 100644 --- a/drivers/net/dm9000.h +++ b/drivers/net/dm9000.h @@ -45,6 +45,9 @@ #define DM9000_CHIPR 0x2C #define DM9000_SMCR 0x2F +#define CHIPR_DM9000A 0x19 +#define CHIPR_DM9000B 0x1B + #define DM9000_MRCMDX 0xF0 #define DM9000_MRCMD 0xF2 #define DM9000_MRRL 0xF4 @@ -131,5 +134,13 @@ #define DM9000_PKT_RDY 0x01 /* Packet ready to receive */ #define DM9000_PKT_MAX 1536 /* Received packet max size */ +/* DM9000A / DM9000B definitions */ + +#define IMR_LNKCHNG (1<<5) +#define IMR_UNDERRUN (1<<4) + +#define ISR_LNKCHNG (1<<5) +#define ISR_UNDERRUN (1<<4) + #endif /* _DM9000X_H_ */ |