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x86: broadwell: Implement PCH_REQ_PMBASE_INFO

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Implement this ioctl() to support power off.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass 2019-04-25 21:59:03 -06:00 committed by Bin Meng
parent 9ffe7cd5c4
commit 2b36eabd8a
1 changed files with 25 additions and 0 deletions
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25
arch/x86/cpu/broadwell/pch.c
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@ -630,10 +630,35 @@ static int broadwell_get_gpio_base(struct udevice *dev, u32 *gbasep)
return 0;
}
static int broadwell_ioctl(struct udevice *dev, enum pch_req_t req, void *data,
int size)
{
switch (req) {
case PCH_REQ_PMBASE_INFO: {
struct pch_pmbase_info *pm = data;
int ret;
/* Find the base address of the powermanagement registers */
ret = dm_pci_read_config16(dev, 0x40, &pm->base);
if (ret)
return ret;
pm->base &= 0xfffe;
pm->gpio0_en_ofs = GPE0_EN(0);
pm->pm1_sts_ofs = PM1_STS;
pm->pm1_cnt_ofs = PM1_CNT;
return 0;
}
default:
return -ENOSYS;
}
}
static const struct pch_ops broadwell_pch_ops = {
.get_spi_base = broadwell_pch_get_spi_base,
.set_spi_protect = broadwell_set_spi_protect,
.get_gpio_base = broadwell_get_gpio_base,
.ioctl = broadwell_ioctl,
};
static const struct udevice_id broadwell_pch_ids[] = {