diff options
Diffstat (limited to 'arch/mips/ath79/pci.c')
| -rw-r--r-- | arch/mips/ath79/pci.c | 72 |
1 files changed, 68 insertions, 4 deletions
diff --git a/arch/mips/ath79/pci.c b/arch/mips/ath79/pci.c index 2b4c730ccbc..365a8b63e8c 100644 --- a/arch/mips/ath79/pci.c +++ b/arch/mips/ath79/pci.c @@ -8,6 +8,7 @@ * by the Free Software Foundation. */ +#include <linux/init.h> #include <linux/pci.h> #include <asm/mach-ath79/ath79.h> #include <asm/mach-ath79/irq.h> @@ -15,9 +16,35 @@ #include "pci.h" static int (*ath79_pci_plat_dev_init)(struct pci_dev *dev); +static const struct ath79_pci_irq *ath79_pci_irq_map __initdata; +static unsigned ath79_pci_nr_irqs __initdata; static struct ar724x_pci_data *pci_data; static int pci_data_size; +static const struct ath79_pci_irq ar71xx_pci_irq_map[] __initconst = { + { + .slot = 17, + .pin = 1, + .irq = ATH79_PCI_IRQ(0), + }, { + .slot = 18, + .pin = 1, + .irq = ATH79_PCI_IRQ(1), + }, { + .slot = 19, + .pin = 1, + .irq = ATH79_PCI_IRQ(2), + } +}; + +static const struct ath79_pci_irq ar724x_pci_irq_map[] __initconst = { + { + .slot = 0, + .pin = 1, + .irq = ATH79_PCI_IRQ(0), + } +}; + void ar724x_pci_add_data(struct ar724x_pci_data *data, int size) { pci_data = data; @@ -26,13 +53,40 @@ void ar724x_pci_add_data(struct ar724x_pci_data *data, int size) int __init pcibios_map_irq(const struct pci_dev *dev, uint8_t slot, uint8_t pin) { - unsigned int devfn = dev->devfn; int irq = -1; + int i; + + if (ath79_pci_nr_irqs == 0 || + ath79_pci_irq_map == NULL) { + if (soc_is_ar71xx()) { + ath79_pci_irq_map = ar71xx_pci_irq_map; + ath79_pci_nr_irqs = ARRAY_SIZE(ar71xx_pci_irq_map); + } else if (soc_is_ar724x()) { + ath79_pci_irq_map = ar724x_pci_irq_map; + ath79_pci_nr_irqs = ARRAY_SIZE(ar724x_pci_irq_map); + } else { + pr_crit("pci %s: invalid irq map\n", + pci_name((struct pci_dev *) dev)); + return irq; + } + } + + for (i = 0; i < ath79_pci_nr_irqs; i++) { + const struct ath79_pci_irq *entry; - if (devfn > pci_data_size - 1) - return irq; + entry = &ath79_pci_irq_map[i]; + if (entry->slot == slot && entry->pin == pin) { + irq = entry->irq; + break; + } + } - irq = pci_data[devfn].irq; + if (irq < 0) + pr_crit("pci %s: no irq found for pin %u\n", + pci_name((struct pci_dev *) dev), pin); + else + pr_info("pci %s: using irq %d for pin %u\n", + pci_name((struct pci_dev *) dev), irq, pin); return irq; } @@ -45,6 +99,13 @@ int pcibios_plat_dev_init(struct pci_dev *dev) return 0; } +void __init ath79_pci_set_irq_map(unsigned nr_irqs, + const struct ath79_pci_irq *map) +{ + ath79_pci_nr_irqs = nr_irqs; + ath79_pci_irq_map = map; +} + void __init ath79_pci_set_plat_dev_init(int (*func)(struct pci_dev *dev)) { ath79_pci_plat_dev_init = func; @@ -52,6 +113,9 @@ void __init ath79_pci_set_plat_dev_init(int (*func)(struct pci_dev *dev)) int __init ath79_register_pci(void) { + if (soc_is_ar71xx()) + return ar71xx_pcibios_init(); + if (soc_is_ar724x()) return ar724x_pcibios_init(ATH79_CPU_IRQ_IP2); |