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drivers: soc: sunxi: Fix mask generation for SRAM mapping

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GENMASK is inclusive on both ends, therefor one has to be
subtracted from the width.
Also fixes the mask for debug output.

Signed-off-by: Jens Kuske <jenskuske@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
This commit is contained in:
Jens Kuske 2016-01-27 14:51:13 +01:00 committed by Maxime Ripard
parent 2d3e8f7031
commit febe6569fa
1 changed files with 3 additions and 2 deletions
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5
drivers/soc/sunxi/sunxi_sram.c
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@ -117,7 +117,7 @@ static int sunxi_sram_show(struct seq_file *s, void *data)
val = readl(base + sram_data->reg);
val >>= sram_data->offset;
val &= sram_data->width;
val &= GENMASK(sram_data->width - 1, 0);
for (func = sram_data->func; func->func; func++) {
seq_printf(s, "\t\t%s%c\n", func->func,
@ -208,7 +208,8 @@ int sunxi_sram_claim(struct device *dev)
return -EBUSY;
}
mask = GENMASK(sram_data->offset + sram_data->width, sram_data->offset);
mask = GENMASK(sram_data->offset + sram_data->width - 1,
sram_data->offset);
val = readl(base + sram_data->reg);
val &= ~mask;
writel(val | ((device << sram_data->offset) & mask),