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dm: pch: Add get_io_base op

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On some newer chipset (eg: BayTrail), there is an IO base address
register on the PCH device which configures the base address of a
memory-mapped I/O controller.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Bin Meng
2016-02-01 01:40:45 -08:00
parent ec2af6f82d
commit 79d4eb627c
2 changed files with 29 additions and 0 deletions
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11
drivers/pch/pch-uclass.c
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@@ -44,6 +44,17 @@ int pch_get_gpio_base(struct udevice *dev, u32 *gbasep)
return ops->get_gpio_base(dev, gbasep);
}
int pch_get_io_base(struct udevice *dev, u32 *iobasep)
{
struct pch_ops *ops = pch_get_ops(dev);
*iobasep = 0;
if (!ops->get_io_base)
return -ENOSYS;
return ops->get_io_base(dev, iobasep);
}
static int pch_uclass_post_bind(struct udevice *bus)
{
/*