diff options
| author | Simon Glass <sjg@chromium.org> | 2019-04-25 21:59:03 -0600 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2019-05-08 13:02:15 +0800 |
| commit | 2b36eabd8aec5107f4753715c2fb4e30cb0d6136 (patch) | |
| tree | 3d3dbb4fe03a4e91c45f53d6b75f338822c9875d | |
| parent | 9ffe7cd5c421e21317d56c80c1390aba636b3ffb (diff) | |
x86: broadwell: Implement PCH_REQ_PMBASE_INFO
Implement this ioctl() to support power off.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
| -rw-r--r-- | arch/x86/cpu/broadwell/pch.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/x86/cpu/broadwell/pch.c b/arch/x86/cpu/broadwell/pch.c index 73d3d3b515..e61efa7b16 100644 --- a/arch/x86/cpu/broadwell/pch.c +++ b/arch/x86/cpu/broadwell/pch.c @@ -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[] = { |