diff options
| -rw-r--r-- | hw/mips/malta.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/hw/mips/malta.c b/hw/mips/malta.c index 9fc3280407..ae76b4db70 100644 --- a/hw/mips/malta.c +++ b/hw/mips/malta.c @@ -621,6 +621,10 @@ static void network_init(PCIBus *pci_bus) static void bl_setup_gt64120_jump_kernel(void **p, uint64_t run_addr, uint64_t kernel_entry) { + static const char pci_pins_cfg[PCI_NUM_PINS] = { + 10, 10, 11, 11 /* PIIX IRQRC[A:D] */ + }; + /* Bus endianess is always reversed */ #if TARGET_BIG_ENDIAN #define cpu_to_gt32 cpu_to_le32 @@ -659,6 +663,20 @@ static void bl_setup_gt64120_jump_kernel(void **p, uint64_t run_addr, #undef cpu_to_gt32 + /* + * The PIIX ISA bridge is on PCI bus 0 dev 10 func 0. + * Load the PIIX IRQC[A:D] routing config address, then + * write routing configuration to the config data register. + */ + bl_gen_write_u32(p, /* GT_PCI0_CFGADDR */ + cpu_mips_phys_to_kseg1(NULL, 0x1be00000 + 0xcf8), + tswap32((1 << 31) /* ConfigEn */ + | PCI_BUILD_BDF(0, PIIX4_PCI_DEVFN) << 8 + | PIIX_PIRQCA)); + bl_gen_write_u32(p, /* GT_PCI0_CFGDATA */ + cpu_mips_phys_to_kseg1(NULL, 0x1be00000 + 0xcfc), + tswap32(ldl_be_p(pci_pins_cfg))); + bl_gen_jump_kernel(p, true, ENVP_VADDR - 64, /* |