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drivers/fsl_pci_init: Fix inbound window mapping bug

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The current code will cause the creation of a 4GB window
starting at 0 if we have more than 4GB of RAM installed,
which overlaps with PCI_MEM space and causes pci_bus_to_phys()
to return erroneous information. Limit the size to 4GB - 1;
which causes the code to create one 2GB and one 1GB window
instead.

Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Andy Fleming <afleming@freescale.com>
This commit is contained in:
Becky Bruce 2008-11-21 19:24:22 -06:00 • committed by Andrew Fleming-AFLEMING
parent 5a105a333d
commit 35db1c6d34
1 changed files with 1 additions and 1 deletions
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2
drivers/pci/fsl_pci_init.c
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@ -58,7 +58,7 @@ void pciauto_config_init(struct pci_controller *hose);
int fsl_pci_setup_inbound_windows(struct pci_region *r)
{
struct pci_region *rgn_base = r;
u64 sz = min((u64)gd->ram_size, 1ull << 32);
u64 sz = min((u64)gd->ram_size, (1ull << 32) - 1);
phys_addr_t phys_start = CONFIG_SYS_PCI_MEMORY_PHYS;
pci_addr_t bus_start = CONFIG_SYS_PCI_MEMORY_BUS;