diff options
Diffstat (limited to 'arch/sparc/kernel/of_device.c')
| -rw-r--r-- | arch/sparc/kernel/of_device.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/arch/sparc/kernel/of_device.c b/arch/sparc/kernel/of_device.c index cc4c235c4f59..c481d45f97b7 100644 --- a/arch/sparc/kernel/of_device.c +++ b/arch/sparc/kernel/of_device.c @@ -70,7 +70,7 @@ struct of_bus { int *addrc, int *sizec); int (*map)(u32 *addr, const u32 *range, int na, int ns, int pna); - unsigned int (*get_flags)(const u32 *addr); + unsigned long (*get_flags)(const u32 *addr, unsigned long); }; /* @@ -130,8 +130,10 @@ static int of_bus_default_map(u32 *addr, const u32 *range, return 0; } -static unsigned int of_bus_default_get_flags(const u32 *addr) +static unsigned long of_bus_default_get_flags(const u32 *addr, unsigned long flags) { + if (flags) + return flags; return IORESOURCE_MEM; } @@ -194,17 +196,21 @@ static int of_bus_pci_map(u32 *addr, const u32 *range, return 0; } -static unsigned int of_bus_pci_get_flags(const u32 *addr) +static unsigned long of_bus_pci_get_flags(const u32 *addr, unsigned long flags) { - unsigned int flags = 0; u32 w = addr[0]; + /* For PCI, we override whatever child busses may have used. */ + flags = 0; switch((w >> 24) & 0x03) { case 0x01: flags |= IORESOURCE_IO; + break; + case 0x02: /* 32 bits */ case 0x03: /* 64 bits */ flags |= IORESOURCE_MEM; + break; } if (w & 0x40000000) flags |= IORESOURCE_PREFETCH; @@ -362,10 +368,11 @@ static void __init build_device_resources(struct of_device *op, int pna, pns; size = of_read_addr(reg + na, ns); - flags = bus->get_flags(reg); memcpy(addr, reg, na * 4); + flags = bus->get_flags(reg, 0); + /* If the immediate parent has no ranges property to apply, * just use a 1<->1 mapping. */ @@ -393,6 +400,8 @@ static void __init build_device_resources(struct of_device *op, dna, dns, pna)) break; + flags = pbus->get_flags(addr, flags); + dna = pna; dns = pns; dbus = pbus; |