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| author | Hiroshi DOYU <hdoyu@nvidia.com> | 2012-05-11 13:04:45 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-05-11 15:21:27 -0700 |
| commit | b37fd4154e758c7226fda663e2ea3a97c6e8c732 (patch) | |
| tree | 78cc112a60154ce5954ea89ebd7fe4a1448e7e52 /drivers/memory | |
| parent | 0c733a427c430b54a6fa574fbc6e96baf7b9202f (diff) | |
| download | lwn-b37fd4154e758c7226fda663e2ea3a97c6e8c732.tar.gz lwn-b37fd4154e758c7226fda663e2ea3a97c6e8c732.zip | |
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.c | 20 |
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[] = { |