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authorblogic <blogic@3c298f89-4303-0410-b956-a3cf2f4a3e73>2010-03-18 09:20:43 +0000
committerblogic <blogic@3c298f89-4303-0410-b956-a3cf2f4a3e73>2010-03-18 09:20:43 +0000
commit907087e56e1bb5f276e245e858e787447b44e96c (patch)
treec71d5c11f2a5864921fcd1eb283279199975f386 /target
parent10548008244fa1a7b13c623ec18c5e73a83dc83a (diff)
[ifxmips] Calculate PCI BARMASK11 register value dynamicly, signed off by Ithamar R. Adema
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@20262 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target')
-rw-r--r--target/linux/ifxmips/files/arch/mips/pci/pci-ifxmips.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/target/linux/ifxmips/files/arch/mips/pci/pci-ifxmips.c b/target/linux/ifxmips/files/arch/mips/pci/pci-ifxmips.c
index e50cb3bdc..64f37d556 100644
--- a/target/linux/ifxmips/files/arch/mips/pci/pci-ifxmips.c
+++ b/target/linux/ifxmips/files/arch/mips/pci/pci-ifxmips.c
@@ -89,6 +89,17 @@ pcibios_plat_dev_init(struct pci_dev *dev)
return 0;
}
+static u32 calc_bar11mask(void)
+{
+ u32 mem, bar11mask;
+
+ /* BAR11MASK value depends on available memory on system. */
+ mem = num_physpages * PAGE_SIZE;
+ bar11mask = (0x0ffffff0 & ~((1 << (fls(mem) -1)) -1)) | 8;
+
+ return bar11mask;
+}
+
static void __init
ifxmips_pci_startup(void)
{
@@ -138,7 +149,7 @@ ifxmips_pci_startup(void)
ifxmips_w32(0x19800000, PCI_CR_FCI_ADDR_MAP6);
ifxmips_w32(0x19c00000, PCI_CR_FCI_ADDR_MAP7);
ifxmips_w32(0x1ae00000, PCI_CR_FCI_ADDR_MAP11hg);
- ifxmips_w32(0x0e000008, PCI_CR_BAR11MASK);
+ ifxmips_w32(calc_bar11mask(), PCI_CR_BAR11MASK);
ifxmips_w32(0, PCI_CR_PCI_ADDR_MAP11);
ifxmips_w32(0, PCI_CS_BASE_ADDR1);
#ifdef CONFIG_SWAP_IO_SPACE