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cns3xxx: backport pci fix for cns3xxx_write_config

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Fix is required to properly set pci config bits.
Original Patch: https://patchwork.ozlabs.org/patch/596170/

Signed-off-by: Pushpal Sidhu <psidhu@gateworks.com>

SVN-Revision: 49248
This commit is contained in:
John Crispin 2016-04-26 11:43:57 +00:00
parent cb049e71cd
commit 6a111b41bc
1 changed files with 19 additions and 0 deletions
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19
target/linux/cns3xxx/patches-4.4/033-CNS3xxx-Fix-PCI-cns3xxx_write_config.patch Normal file
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@ -0,0 +1,19 @@
--- a/arch/arm/mach-cns3xxx/pcie.c
+++ b/arch/arm/mach-cns3xxx/pcie.c
@@ -220,13 +220,13 @@ static void cns3xxx_write_config(struct
u32 mask = (0x1ull << (size * 8)) - 1;
int shift = (where % 4) * 8;
- v = readl_relaxed(base + (where & 0xffc));
+ v = readl_relaxed(base);
v &= ~(mask << shift);
v |= (val & mask) << shift;
- writel_relaxed(v, base + (where & 0xffc));
- readl_relaxed(base + (where & 0xffc));
+ writel_relaxed(v, base);
+ readl_relaxed(base);
}
static void __init cns3xxx_pcie_hw_init(struct cns3xxx_pcie *cnspci)