diff options
Diffstat (limited to 'drivers/serial')
| -rw-r--r-- | drivers/serial/pmac_zilog.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/serial/pmac_zilog.c b/drivers/serial/pmac_zilog.c index ad3488504010..9c1243fbd512 100644 --- a/drivers/serial/pmac_zilog.c +++ b/drivers/serial/pmac_zilog.c @@ -1538,6 +1538,21 @@ no_dma: uap->port.type = PORT_PMAC_ZILOG; uap->port.flags = 0; + /* + * Fixup for the port on Gatwick for which the device-tree has + * missing interrupts. Normally, the macio_dev would contain + * fixed up interrupt info, but we use the device-tree directly + * here due to early probing so we need the fixup too. + */ + if (uap->port.irq == NO_IRQ && + np->parent && np->parent->parent && + of_device_is_compatible(np->parent->parent, "gatwick")) { + /* IRQs on gatwick are offset by 64 */ + uap->port.irq = irq_create_mapping(NULL, 64 + 15); + uap->tx_dma_irq = irq_create_mapping(NULL, 64 + 4); + uap->rx_dma_irq = irq_create_mapping(NULL, 64 + 5); + } + /* Setup some valid baud rate information in the register * shadows so we don't write crap there before baud rate is * first initialized. |