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authorHiroshi DOYU <hdoyu@nvidia.com>2012-05-11 13:04:45 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-05-11 15:21:27 -0700
commitb37fd4154e758c7226fda663e2ea3a97c6e8c732 (patch)
tree78cc112a60154ce5954ea89ebd7fe4a1448e7e52 /drivers/memory
parent0c733a427c430b54a6fa574fbc6e96baf7b9202f (diff)
downloadlinux-b37fd4154e758c7226fda663e2ea3a97c6e8c732.tar.bz2
ARM: tegra30: MC: Remove unnecessary BUG*()
Accessing interleaved MC register offsets/ranges are verified. BUG*()s in accessors can be removed. Signed-off-by: Hiroshi DOYU <hdoyu@nvidia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/memory')
-rw-r--r--drivers/memory/tegra30-mc.c20
1 files changed, 8 insertions, 12 deletions
diff --git a/drivers/memory/tegra30-mc.c b/drivers/memory/tegra30-mc.c
index c9821258117a..ec9fc7894801 100644
--- a/drivers/memory/tegra30-mc.c
+++ b/drivers/memory/tegra30-mc.c
@@ -91,18 +91,18 @@ struct tegra30_mc {
static inline u32 mc_readl(struct tegra30_mc *mc, u32 offs)
{
+ u32 val = 0;
+
if (offs < 0x10)
- return readl(mc->regs[0] + offs);
- BUG_ON(offs < 0x3c);
+ val = readl(mc->regs[0] + offs);
if (offs < 0x1f0)
- return readl(mc->regs[1] + offs - 0x3c);
- BUG_ON(offs < 0x200);
+ val = readl(mc->regs[1] + offs - 0x3c);
if (offs < 0x228)
- return readl(mc->regs[2] + offs - 0x200);
- BUG_ON(offs < 0x284);
+ val = readl(mc->regs[2] + offs - 0x200);
if (offs < 0x400)
- return readl(mc->regs[3] + offs - 0x284);
- BUG();
+ val = readl(mc->regs[3] + offs - 0x284);
+
+ return val;
}
static inline void mc_writel(struct tegra30_mc *mc, u32 val, u32 offs)
@@ -111,22 +111,18 @@ static inline void mc_writel(struct tegra30_mc *mc, u32 val, u32 offs)
writel(val, mc->regs[0] + offs);
return;
}
- BUG_ON(offs < 0x3c);
if (offs < 0x1f0) {
writel(val, mc->regs[1] + offs - 0x3c);
return;
}
- BUG_ON(offs < 0x200);
if (offs < 0x228) {
writel(val, mc->regs[2] + offs - 0x200);
return;
}
- BUG_ON(offs < 0x284);
if (offs < 0x400) {
writel(val, mc->regs[3] + offs - 0x284);
return;
}
- BUG();
}
static const char * const tegra30_mc_client[] = {