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bcma: only map wrapper if its address is available

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The Chipcommon B core does not have a wrap address and it would fail here.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Hauke Mehrtens
2014-08-22 08:44:52 +02:00
committed by John W. Linville
parent 89be7ceb80
commit ecf47e9bb7
2 changed files with 11 additions and 4 deletions
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4
drivers/bcma/host_soc.c
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@@ -134,12 +134,16 @@ static void bcma_host_soc_block_write(struct bcma_device *core,
static u32 bcma_host_soc_aread32(struct bcma_device *core, u16 offset)
{
if (WARN_ONCE(!core->io_wrap, "Accessed core has no wrapper/agent\n"))
return ~0;
return readl(core->io_wrap + offset);
}
static void bcma_host_soc_awrite32(struct bcma_device *core, u16 offset,
u32 value)
{
if (WARN_ONCE(!core->io_wrap, "Accessed core has no wrapper/agent\n"))
return;
writel(value, core->io_wrap + offset);
}