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| author | H Hartley Sweeten <hsweeten@visionengravers.com> | 2010-03-22 10:33:58 +0800 |
|---|---|---|
| committer | Eric Miao <eric.y.miao@gmail.com> | 2010-03-22 12:03:08 +0800 |
| commit | 1b0d76cb9d5a65567230097a2512046f09f30523 (patch) | |
| tree | 0db3dc2d1adc6a71d2d345d905da5c2306254a12 | |
| parent | 6533be390b1210285854fb2fc7ea80c0ada60b13 (diff) | |
| download | lwn-1b0d76cb9d5a65567230097a2512046f09f30523.tar.gz lwn-1b0d76cb9d5a65567230097a2512046f09f30523.zip | |
[ARM] locomo: fix SPI register offset
The locomo spi registers are all defined in locomo.h as offsets
from the first spi register LOCOMO_SPI (0x60), which is itself
an offset from the locomo base address. To correctly access
these registers LOCOMO_SPI must always be included in the
address calculation.
There are two places in locomo.c where this is not done. The
first one, in locomo_suspend, actually results in a write to
LOCOMO_ST instead of LOCOMO_SPICT. The second is in __locomo_probe
and results in a write to LOCOMO_MCSX2 instead of LOCOMO_SPIIE.
Fix these by including LOCOMO_SPI in the calculation.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
| -rw-r--r-- | arch/arm/common/locomo.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/common/locomo.c b/arch/arm/common/locomo.c index 90ae00b631c2..4f9ccf60aac2 100644 --- a/arch/arm/common/locomo.c +++ b/arch/arm/common/locomo.c @@ -290,7 +290,7 @@ static int locomo_suspend(struct platform_device *dev, pm_message_t state) save->LCM_GPO = locomo_readl(lchip->base + LOCOMO_GPO); /* GPIO */ locomo_writel(0x00, lchip->base + LOCOMO_GPO); save->LCM_SPICT = locomo_readl(lchip->base + LOCOMO_SPI + LOCOMO_SPICT); /* SPI */ - locomo_writel(0x40, lchip->base + LOCOMO_SPICT); + locomo_writel(0x40, lchip->base + LOCOMO_SPI + LOCOMO_SPICT); save->LCM_GPE = locomo_readl(lchip->base + LOCOMO_GPE); /* GPIO */ locomo_writel(0x00, lchip->base + LOCOMO_GPE); save->LCM_ASD = locomo_readl(lchip->base + LOCOMO_ASD); /* ADSTART */ @@ -418,7 +418,7 @@ __locomo_probe(struct device *me, struct resource *mem, int irq) /* Longtime timer */ locomo_writel(0, lchip->base + LOCOMO_LTINT); /* SPI */ - locomo_writel(0, lchip->base + LOCOMO_SPIIE); + locomo_writel(0, lchip->base + LOCOMO_SPI + LOCOMO_SPIIE); locomo_writel(6 + 8 + 320 + 30 - 10, lchip->base + LOCOMO_ASD); r = locomo_readl(lchip->base + LOCOMO_ASD); |