07bc0d6089
As specified by e0229a16b0 if the VR9
based router provides FXS ports and they should enabled then the
following must added to the kernel command line:
mem=[TOTALMEMSIZE-2M] vpe1_load_addr=ADDRESS vpe1_mem=2M
By adding mem= parameter a pci device stop working correctly. The
pci-lantiq.c module use get_num_physpages() to compute dynamically the
memory amount of the board.
The mem= make the module to compute in the wrong way the BAR11MASK, so
in this situation the mask is misaligned with the dma area that the
hardware expects.
This patch is a port of what legacy ifxmips_pci.c does.
Signed-off-by: Eddi De Pieri <eddi@depieri.net>
22 lines
651 B
Diff
22 lines
651 B
Diff
--- a/arch/mips/pci/pci-lantiq.c
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+++ b/arch/mips/pci/pci-lantiq.c
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@@ -62,6 +62,8 @@
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#define ltq_pci_cfg_w32(x, y) ltq_w32((x), ltq_pci_mapped_cfg + (y))
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#define ltq_pci_cfg_r32(x) ltq_r32(ltq_pci_mapped_cfg + (x))
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+extern u32 max_low_pfn;
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+
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__iomem void *ltq_pci_mapped_cfg;
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static __iomem void *ltq_pci_membase;
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@@ -87,8 +89,8 @@
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u32 mem, bar11mask;
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/* BAR11MASK value depends on available memory on system. */
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- mem = get_num_physpages() * PAGE_SIZE;
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- bar11mask = (0x0ffffff0 & ~((1 << (fls(mem) - 1)) - 1)) | 8;
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+ mem = max_low_pfn << PAGE_SHIFT;
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+ bar11mask = ((-roundup_pow_of_two(mem)) & 0x0F000000) | 8;
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return bar11mask;
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}
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