ACPI has a capability to specify DMA parameters for DMA channel consumers.
To enable this for Intel Edison, describe GP DMA device in ACPI table
in order to get an ACPI handle to it in OS.
This works in conjunction with CSRT, which must be in align with DSDT.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Intel Tangier SoC has a general purpose DMA which can serve to speed up
communications on SPI and I2C serial buses.
Provide DMA descriptors to utilize this capability in the future.
Note, I2C6, which is available to user, has no DMA request lines connected.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Intel Tangier SoC has a general purpose DMA which can serve to speed up
communications on SPI and I2C serial buses.
Provide DMA descriptors to utilize this capability in the future.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Basin Cove PMIC is connected to I2C0 bus which is hidden from the OS
and access is going via SCU device, enumerated via PCI.
For now, we add just a minimum support of PMIC device to allow enabling,
e.g. USB OTG, in the OS.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Bin Meng <bmeng.cn@gmail.com>
Make the indentation aligned with what used elsewhere in U-Boot.
No functional change intended.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Intel Tangier SoC has RTC inside. So, enable it in ACPI.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
New ACPI assembler issues a warning:
board/intel/edison/dsdt.asl.tmp 13: Offset (0x00),
Remark 2158 - ^ Unnecessary/redundant use of Offset operator
Indeed, in the OperationRegion the offset is 0x00 by default.
Thus, drop unneeded Offset() use as suggested by ACPI assembler.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Now that we have I2C#6 working, it's time to add a corresponsing
ACPI binding.
Signed-off-by: Georgii Staroselskii <georgii.staroselskii@emlid.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry. Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.
In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.
This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents. There's also a few places where I found we did not have a tag
and have introduced one.
Signed-off-by: Tom Rini <trini@konsulko.com>
ASL compiler warns:
ASL board/intel/edison/dsdt.asl
board/intel/edison/dsdt.asl.tmp 238: Method (_CRS, 0, NotSerialized)
Remark 2120 - Control Method should be made Serialized ^ (due to creation of named objects within)
Do as suggested by ASL compiler.
Fixes: 5d8c4ebd95 ("x86: tangier: Add Bluetooth to ACPI table")
Reported-by: Ferry Toth <fntoth@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
As defined on reference board followed by Intel Edison a Bluetooth
device is attached to HSU0, i.e. PCI 0000:04.1.
Describe it in ACPI accordingly.
Note, we use BCM2E95 ID here as one most suitable for such device based
on the description in commit message of commit 89ab37b489d1
("Bluetooth: hci_bcm: Add support for BCM2E95 and BCM2E96")
in the Linux kernel source tree.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
The recent commit 03c4749dd6c7
("gpio / ACPI: Drop unnecessary ACPI GPIO to Linux GPIO translation")
in the Linux kernel reveals the issue we have in ACPI tables here,
i.e. we must use hardware numbers for GPIO resources and,
taking into consideration that GPIO and pin control are *different* IPs
on Intel Tangier, we need to supply numbers properly.
Besides that, it improves user experience since the official documentation
for Intel Edison board is referring to GPIO hardware numbering scheme.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
FLIS IP since now gets its own ACPI ID.
Drop PRP0001 workaround in favour of official ACPI HID.
Corresponding kernel commit dabd4bc6de2b
pinctrl: intel: merrifield: Introduce ACPI device table
in the pin control subsystem tree [1] targeting v4.16.
[1]: https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl.git/commit/?h=for-next&id=dabd4bc6de2b
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Tangier SoC is a part of Intel Merrifield platform which doesn't
utilize ACPI by default. Here is an attempt to unleash ACPI flexibility
power on Intel Merrifield based platforms.
The change brings minimum support of the devices that found on
Intel Merrifield based end user device.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
