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pasemi_mac: Move the IRQ mapping from the PCI layer to the driver

Browse source 
Fixes for ethernet IRQ mapping, to be done in the driver instead of in
the platform setup code.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Olof Johansson 2007-05-08 00:47:21 -05:00 • committed by Jeff Garzik
parent 418aea7524
commit 771f7404a9
4 changed files with 23 additions and 23 deletions
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13
arch/powerpc/platforms/pasemi/pci.c
View file

@ -173,19 +173,6 @@ static void __init pas_fixup_phb_resources(void)
} }
void __devinit pas_pci_irq_fixup(struct pci_dev *dev)
{
/* DMA is special, 84 interrupts (128 -> 211), all but 128
* need to be mapped by hand here.
*/
if (dev->vendor == 0x1959 && dev->device == 0xa007) {
int i;
for (i = 129; i < 212; i++)
irq_create_mapping(NULL, i);
}
}
void __init pas_pci_init(void) void __init pas_pci_init(void)
{ {
struct device_node *np, *root; struct device_node *np, *root;

1
arch/powerpc/platforms/pasemi/setup.c
View file

@ -248,5 +248,4 @@ define_machine(pas) {
.calibrate_decr = generic_calibrate_decr, .calibrate_decr = generic_calibrate_decr,
.progress = pas_progress, .progress = pas_progress,
.machine_check_exception = pas_machine_check_handler, .machine_check_exception = pas_machine_check_handler,
.pci_irq_fixup = pas_pci_irq_fixup,
}; };

30
drivers/net/pasemi_mac.c
View file

@ -33,6 +33,8 @@
#include <linux/tcp.h> #include <linux/tcp.h>
#include <net/checksum.h> #include <net/checksum.h>
#include <asm/irq.h>
#include "pasemi_mac.h" #include "pasemi_mac.h"
@ -531,6 +533,7 @@ static irqreturn_t pasemi_mac_tx_intr(int irq, void *data)
static int pasemi_mac_open(struct net_device *dev) static int pasemi_mac_open(struct net_device *dev)
{ {
struct pasemi_mac *mac = netdev_priv(dev); struct pasemi_mac *mac = netdev_priv(dev);
int base_irq;
unsigned int flags; unsigned int flags;
int ret; int ret;
@ -594,28 +597,37 @@ static int pasemi_mac_open(struct net_device *dev)
netif_start_queue(dev); netif_start_queue(dev);
netif_poll_enable(dev); netif_poll_enable(dev);
ret = request_irq(mac->dma_pdev->irq + mac->dma_txch, /* Interrupts are a bit different for our DMA controller: While
&pasemi_mac_tx_intr, IRQF_DISABLED, * it's got one a regular PCI device header, the interrupt there
* is really the base of the range it's using. Each tx and rx
* channel has it's own interrupt source.
*/
base_irq = virq_to_hw(mac->dma_pdev->irq);
mac->tx_irq = irq_create_mapping(NULL, base_irq + mac->dma_txch);
mac->rx_irq = irq_create_mapping(NULL, base_irq + 20 + mac->dma_txch);
ret = request_irq(mac->tx_irq, &pasemi_mac_tx_intr, IRQF_DISABLED,
mac->tx->irq_name, dev); mac->tx->irq_name, dev);
if (ret) { if (ret) {
dev_err(&mac->pdev->dev, "request_irq of irq %d failed: %d\n", dev_err(&mac->pdev->dev, "request_irq of irq %d failed: %d\n",
mac->dma_pdev->irq + mac->dma_txch, ret); base_irq + mac->dma_txch, ret);
goto out_tx_int; goto out_tx_int;
} }
ret = request_irq(mac->dma_pdev->irq + 20 + mac->dma_rxch, ret = request_irq(mac->rx_irq, &pasemi_mac_rx_intr, IRQF_DISABLED,
&pasemi_mac_rx_intr, IRQF_DISABLED,
mac->rx->irq_name, dev); mac->rx->irq_name, dev);
if (ret) { if (ret) {
dev_err(&mac->pdev->dev, "request_irq of irq %d failed: %d\n", dev_err(&mac->pdev->dev, "request_irq of irq %d failed: %d\n",
mac->dma_pdev->irq + 20 + mac->dma_rxch, ret); base_irq + 20 + mac->dma_rxch, ret);
goto out_rx_int; goto out_rx_int;
} }
return 0; return 0;
out_rx_int: out_rx_int:
free_irq(mac->dma_pdev->irq + mac->dma_txch, dev); free_irq(mac->tx_irq, dev);
out_tx_int: out_tx_int:
netif_poll_disable(dev); netif_poll_disable(dev);
netif_stop_queue(dev); netif_stop_queue(dev);
@ -699,8 +711,8 @@ static int pasemi_mac_close(struct net_device *dev)
pci_write_config_dword(mac->dma_pdev, pci_write_config_dword(mac->dma_pdev,
PAS_DMA_RXINT_RCMDSTA(mac->dma_if), 0); PAS_DMA_RXINT_RCMDSTA(mac->dma_if), 0);
free_irq(mac->dma_pdev->irq + mac->dma_txch, dev); free_irq(mac->tx_irq, dev);
free_irq(mac->dma_pdev->irq + 20 + mac->dma_rxch, dev); free_irq(mac->rx_irq, dev);
/* Free resources */ /* Free resources */
pasemi_mac_free_rx_resources(dev); pasemi_mac_free_rx_resources(dev);

2
drivers/net/pasemi_mac.h
View file

@ -73,6 +73,8 @@ struct pasemi_mac {
struct pasemi_mac_txring *tx; struct pasemi_mac_txring *tx;
struct pasemi_mac_rxring *rx; struct pasemi_mac_rxring *rx;
unsigned long tx_irq;
unsigned long rx_irq;
}; };
/* Software status descriptor (desc_info) */ /* Software status descriptor (desc_info) */