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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2009-06-11 10:58:01 +0200 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2009-06-11 10:58:01 +0200 |
| commit | 4894e4aca82aca927d0404ce61f021f790de4b1e (patch) | |
| tree | bbe0d083829f5858295298f188d885367cf4b1f6 /arch/powerpc/kernel/pci_64.c | |
| parent | Input: appletouch - improve finger detection (diff) | |
| parent | Linux 2.6.30 (diff) | |
| download | linux-4894e4aca82aca927d0404ce61f021f790de4b1e.tar.xz linux-4894e4aca82aca927d0404ce61f021f790de4b1e.zip | |
Merge commit 'v2.6.30' into next
Diffstat (limited to 'arch/powerpc/kernel/pci_64.c')
| -rw-r--r-- | arch/powerpc/kernel/pci_64.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c index be574fc0d92f..96edb6f8babb 100644 --- a/arch/powerpc/kernel/pci_64.c +++ b/arch/powerpc/kernel/pci_64.c @@ -64,7 +64,7 @@ static u32 get_int_prop(struct device_node *np, const char *name, u32 def) return def; } -static unsigned int pci_parse_of_flags(u32 addr0) +static unsigned int pci_parse_of_flags(u32 addr0, int bridge) { unsigned int flags = 0; @@ -75,8 +75,17 @@ static unsigned int pci_parse_of_flags(u32 addr0) if (addr0 & 0x40000000) flags |= IORESOURCE_PREFETCH | PCI_BASE_ADDRESS_MEM_PREFETCH; + /* Note: We don't know whether the ROM has been left enabled + * by the firmware or not. We mark it as disabled (ie, we do + * not set the IORESOURCE_ROM_ENABLE flag) for now rather than + * do a config space read, it will be force-enabled if needed + */ + if (!bridge && (addr0 & 0xff) == 0x30) + flags |= IORESOURCE_READONLY; } else if (addr0 & 0x01000000) flags = IORESOURCE_IO | PCI_BASE_ADDRESS_SPACE_IO; + if (flags) + flags |= IORESOURCE_SIZEALIGN; return flags; } @@ -95,7 +104,7 @@ static void pci_parse_of_addrs(struct device_node *node, struct pci_dev *dev) return; pr_debug(" parse addresses (%d bytes) @ %p\n", proplen, addrs); for (; proplen >= 20; proplen -= 20, addrs += 5) { - flags = pci_parse_of_flags(addrs[0]); + flags = pci_parse_of_flags(addrs[0], 0); if (!flags) continue; base = of_read_number(&addrs[1], 2); @@ -293,7 +302,7 @@ void __devinit of_scan_pci_bridge(struct device_node *node, } i = 1; for (; len >= 32; len -= 32, ranges += 8) { - flags = pci_parse_of_flags(ranges[0]); + flags = pci_parse_of_flags(ranges[0], 1); size = of_read_number(&ranges[6], 2); if (flags == 0 || size == 0) continue; |