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| author | Lucas Stach <l.stach@pengutronix.de> | 2015-03-13 11:28:04 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2015-03-16 05:29:32 +0100 |
| commit | eab9e4cdd9648b8b795ba04ec56cb842deac564e (patch) | |
| tree | 3d15fe5fef0bd480764f3176129b8e4cfc2ab7bf | |
| parent | 5dd5884801669b17705cd030e9e82a4f1de50296 (diff) | |
| download | barebox-eab9e4cdd9648b8b795ba04ec56cb842deac564e.tar.gz barebox-eab9e4cdd9648b8b795ba04ec56cb842deac564e.tar.xz | |
PCI: fix bad bugs in bridge setup code
Add the required brackets, so that we don't write unused registers
with potentially bogus values.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| -rw-r--r-- | drivers/pci/pci.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 5b848eeb2a..1f5dc78b3c 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -259,15 +259,17 @@ static void postscan_setup_bridge(struct pci_dev *dev) /* limit subordinate to last used bus number */ pci_write_config_byte(dev, PCI_SUBORDINATE_BUS, bus_index - 1); - if (last_mem) + if (last_mem) { last_mem = ALIGN(last_mem, SZ_1M); pci_write_config_word(dev, PCI_MEMORY_LIMIT, ((last_mem - 1) & 0xfff00000) >> 16); + } - if (last_mem_pref) + if (last_mem_pref) { last_mem_pref = ALIGN(last_mem_pref, SZ_1M); pci_write_config_word(dev, PCI_PREF_MEMORY_LIMIT, ((last_mem_pref - 1) & 0xfff00000) >> 16); + } if (last_io) { last_io = ALIGN(last_io, SZ_4K); |