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i.MX31: fix mxc_iomux_set_pad()

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mxc_iomux_set_pad() is buggy on i.MX31 - it calculates the register and
the offset therein wrongly. Fix it.

Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Guennadi Liakhovetski 2008-11-13 12:20:49 +01:00 committed by Sascha Hauer
parent 1d5aa17be1
commit 4a7b98d7e7
1 changed files with 5 additions and 4 deletions
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9
arch/arm/mach-mx3/iomux.c
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@ -74,17 +74,18 @@ void mxc_iomux_set_pad(enum iomux_pins pin, u32 config)
u32 field, l; u32 field, l;
void __iomem *reg; void __iomem *reg;
reg = IOMUXSW_PAD_CTL + (pin + 2) / 3; pin &= IOMUX_PADNUM_MASK;
reg = IOMUXSW_PAD_CTL + (pin + 2) / 3 * 4;
field = (pin + 2) % 3; field = (pin + 2) % 3;
pr_debug("%s: reg offset = 0x%x field = %d\n", pr_debug("%s: reg offset = 0x%x, field = %d\n",
__func__, (pin + 2) / 3, field); __func__, (pin + 2) / 3, field);
spin_lock(&gpio_mux_lock); spin_lock(&gpio_mux_lock);
l = __raw_readl(reg); l = __raw_readl(reg);
l &= ~(0x1ff << (field * 9)); l &= ~(0x1ff << (field * 10));
l |= config << (field * 9); l |= config << (field * 10);
__raw_writel(l, reg); __raw_writel(l, reg);
spin_unlock(&gpio_mux_lock); spin_unlock(&gpio_mux_lock);