diff options
Diffstat (limited to 'arch/x86/cpu/quark/quark.c')
| -rw-r--r-- | arch/x86/cpu/quark/quark.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/x86/cpu/quark/quark.c b/arch/x86/cpu/quark/quark.c index e78a271..20cc09e 100644 --- a/arch/x86/cpu/quark/quark.c +++ b/arch/x86/cpu/quark/quark.c @@ -9,6 +9,7 @@ #include <netdev.h> #include <phy.h> #include <asm/io.h> +#include <asm/irq.h> #include <asm/pci.h> #include <asm/post.h> #include <asm/processor.h> @@ -147,3 +148,33 @@ int cpu_eth_init(bd_t *bis) else return 0; } + +void cpu_irq_init(void) +{ + struct quark_rcba *rcba; + u32 base; + + base = x86_pci_read_config32(QUARK_LEGACY_BRIDGE, LB_RCBA); + base &= ~MEM_BAR_EN; + rcba = (struct quark_rcba *)base; + + /* + * Route Quark PCI device interrupt pin to PIRQ + * + * Route device#23's INTA/B/C/D to PIRQA/B/C/D + * Route device#20,21's INTA/B/C/D to PIRQE/F/G/H + */ + writew(PIRQC, &rcba->rmu_ir); + writew(PIRQA | (PIRQB << 4) | (PIRQC << 8) | (PIRQD << 12), + &rcba->d23_ir); + writew(PIRQD, &rcba->core_ir); + writew(PIRQE | (PIRQF << 4) | (PIRQG << 8) | (PIRQH << 12), + &rcba->d20d21_ir); +} + +int arch_misc_init(void) +{ + pirq_init(); + + return 0; +} |