diff options
Diffstat (limited to 'drivers/ide/legacy/qd65xx.c')
| -rw-r--r-- | drivers/ide/legacy/qd65xx.c | 52 |
1 files changed, 17 insertions, 35 deletions
diff --git a/drivers/ide/legacy/qd65xx.c b/drivers/ide/legacy/qd65xx.c index d8a05b57277..336ef20407f 100644 --- a/drivers/ide/legacy/qd65xx.c +++ b/drivers/ide/legacy/qd65xx.c @@ -334,7 +334,7 @@ static const struct ide_port_info qd65xx_port_info __initdata = { static int __init qd_probe(int base) { int rc; - u8 config, unit; + u8 config, unit, control; struct ide_port_info d = qd65xx_port_info; config = inb(QD_CONFIG_PORT); @@ -347,13 +347,11 @@ static int __init qd_probe(int base) if (unit) d.host_flags |= IDE_HFLAG_QD_2ND_PORT; - if ((config & 0xf0) == QD_CONFIG_QD6500) { - + switch (config & 0xf0) { + case QD_CONFIG_QD6500: if (qd_testreg(base)) return -ENODEV; /* bad register */ - /* qd6500 found */ - if (config & QD_CONFIG_DISABLED) { printk(KERN_WARNING "qd6500 is disabled !\n"); return -ENODEV; @@ -365,22 +363,12 @@ static int __init qd_probe(int base) d.port_ops = &qd6500_port_ops; d.host_flags |= IDE_HFLAG_SINGLE; - - rc = ide_legacy_device_add(&d, (base << 8) | config); - - return (rc == 0) ? 1 : rc; - } - - if (((config & 0xf0) == QD_CONFIG_QD6580_A) || - ((config & 0xf0) == QD_CONFIG_QD6580_B)) { - - u8 control; - + break; + case QD_CONFIG_QD6580_A: + case QD_CONFIG_QD6580_B: if (qd_testreg(base) || qd_testreg(base + 0x02)) return -ENODEV; /* bad registers */ - /* qd6580 found */ - control = inb(QD_CONTROL_PORT); printk(KERN_NOTICE "qd6580 at %#x\n", base); @@ -390,28 +378,22 @@ static int __init qd_probe(int base) outb(QD_DEF_CONTR, QD_CONTROL_PORT); d.port_ops = &qd6580_port_ops; - - if (control & QD_CONTR_SEC_DISABLED) { - /* secondary disabled */ - - printk(KERN_INFO "qd6580: single IDE board\n"); - + if (control & QD_CONTR_SEC_DISABLED) d.host_flags |= IDE_HFLAG_SINGLE; - rc = ide_legacy_device_add(&d, (base << 8) | config); + printk(KERN_INFO "qd6580: %s IDE board\n", + (control & QD_CONTR_SEC_DISABLED) ? "single" : "dual"); + break; + default: + return -ENODEV; + } - return (rc == 0) ? 1 : rc; - } else { - /* secondary enabled */ - printk(KERN_INFO "qd6580: dual IDE board\n"); + rc = ide_legacy_device_add(&d, (base << 8) | config); - rc = ide_legacy_device_add(&d, (base << 8) | config); + if (d.host_flags & IDE_HFLAG_SINGLE) + return (rc == 0) ? 1 : rc; - return rc; /* no other qd65xx possible */ - } - } - /* no qd65xx found */ - return -ENODEV; + return rc; } int probe_qd65xx = 0; |