x86: baytrail: Generate ACPI FADT/MADT tables

FADT/MADT tables are platform specific. Generate them for BayTrail.

Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Simon Glass <[email protected]>

x86: baytrail: Add platform ASL files

This adds basic BayTrail platform ASL files. They are intended to be
included in dsdt.asl of any board that is based on this platform.

Note: ACPI mode support for GPIO/LPSS/SCC/LPE are not supported for
now. They will be added in the future.

Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Simon Glass <[email protected]>

x86: acpi: Return table length in acpi_create_madt_lapics()

Like other MADT table write routines, make acpi_create_madt_lapics()
return how many bytes it has written instead of the table end addr.

Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Simon Glass <[email protected]>

x86: acpi: Add some generic ASL libraries

This adds several generic ASL libraries that can be included by
other ASL files, which are:

- debug.asl: for debug output using POST I/O port and legacy serial port
- globutil.asl: for string compare routines
- statdef.asl: for _STA status values

Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Tested-by: Stefan Roese <[email protected]>
Reviewed-by: Simon Glass <[email protected]>

x86: acpi: Clean up table header revisions

The comment of initializing table header revision says:

    /* ACPI 1.0/2.0: 1, ACPI 3.0: 2, ACPI 4.0: 3 */

which might mislead it may increase per ACPI spec revision.
However this is not the case. It's actually a fixed number
as defined in ACPI spec, and in the laest ACPI spec 6.1,
some table header revisions are still 1. Clean these up.

Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Simon Glass <[email protected]>

x86: acpi: Align FACS table to a 64 byte boundary

Per ACPI spec, the FACS table address must be aligned to a 64 byte
boundary (Windows checks this, but Linux does not).

Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Tested-by: Stefan Roese <[email protected]>
Reviewed-by: Simon Glass <[email protected]>

x86: acpi: Use u32 in table write routines

Use u32 instead of unsigned long in the table write routines, as
other routines do.

Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Simon Glass <[email protected]>

x86: acpi: Adjust order in acpi_table.c

Rearrange the routine order a little bit, to follow the order
in which ACPI table is defined in acpi_table.h.

Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Tested-by: Stefan Roese <[email protected]>
Reviewed-by: Simon Glass <[email protected]>

x86: acpi: Change fill_header()

Rename fill_header() to acpi_fill_header() for consistency.
Change its signature to remove the 'length' parameter and
make it a public API.

Also remove the unnecessary include files, and improve the
AmlCode[] comment a little bit.

Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Tested-by: Stefan Roese <[email protected]>
Reviewed-by: Simon Glass <[email protected]>

x86: acpi: Remove acpi_create_ssdt_generator()

This acpi_create_ssdt_generator() currently does nothing.
Remove this for now.

Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Tested-by: Stefan Roese <[email protected]>
Reviewed-by: Simon Glass <[email protected]>

x86: acpi: Reorder code in acpi_table.h

Reorder the ACPI tables appearance by following the order:
RSDP, RSDT, XSDT, FADT, FACS, MADT, MCFG. And adjust the
table flag defines accordingly.

Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Tested-by: Stefan Roese <[email protected]>
Reviewed-by: Simon Glass <[email protected]>

x86: acpi: Various changes to acpi_table.h

- Use "U-BOOT" and "U-BOOTBL" for the OEM ID and OEM table ID.
- Do not typedef acpi_header_t, instead use struct acpi_table_hader.
- Use a shorter name aslc_id and aslc-revision.
- Change MCFG base address to use 32-bit value pairs (_l and _h).
- Apply ACPI_APIC_ prefix to MADT APIC type macros and make
  their names to be more readable.
- Apply __packed to struct acpi_madt_irqoverride and struct
  acpi_madt_lapic_nmi tables, as they are not naturally aligned
  by the compiler which leads to wrong sizeof(struct).
- Rename model to res1 as it is reserved after ACPI spec 1.0.
- Apply ACPI_ prefix to the PM profile macros and change them
  to enum.
- Add ospm_flags to FACS structure which is defined since ACPI 4.0.

Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Tested-by: Stefan Roese <[email protected]>
Reviewed-by: Simon Glass <[email protected]>

x86: acpi: Remove unused codes

- Remove #include <> header files.
- Remove APM_CNT register defines, which should not be here as
  they are SMI related.
- Remove MP_IRQ_ defines as they are duplicates of the same ones
  in asm/mpspec.h.
- Remove ACTL register defines, which should not be here as they
  are chipset specific.
- Remove functional fixed hardware defines, which are not used.
- Remove dev_scope related defines, which are not used.

Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Tested-by: Stefan Roese <[email protected]>
Reviewed-by: Simon Glass <[email protected]>

acpi: Output all errors/warnings/remarks when compiling ASL

Remove -va option when invoking IASL compiler so that we can see
errors/warnings/remarks in the build log.

Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Tested-by: Stefan Roese <[email protected]>
Reviewed-by: Simon Glass <[email protected]>

acpi: Specify U-Boot include path for ASL files

It will be much easier if we split the whole dsdt.asl file into
multiple smaller ASL parts and have access to U-Boot include files.

Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Tested-by: Stefan Roese <[email protected]>
Reviewed-by: Simon Glass <[email protected]>

acpi: Explicitly spell out dsdt.c in the make rule

Currently the make rule for dsdt.c uses a wildcard, as below:

  $(obj)/%.c:    $(src)/%.asl

To avoid any side effect, explicitly mention dsdt.c as this is
the file we intend to use for ACPI DSDT AML generation.

Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Tested-by: Stefan Roese <[email protected]>
Reviewed-by: Simon Glass <[email protected]>

acpi: Change build log for ASL files

Currently when compiling U-Boot with ASL file, the build log says:

  ASL     board/intel/bayleybay/dsdt.c

This looks odd as ASL compiler's input is ASL file, not C file.
Change the make rule to use $< instead.

Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Tested-by: Stefan Roese <[email protected]>
Reviewed-by: Simon Glass <[email protected]>

x86: dts: Update to include ACTL register details

This updates all x86 boards that currently have IRQ router in the
dts files to include ACTL register details.

Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Tested-by: Stefan Roese <[email protected]>
Reviewed-by: Simon Glass <[email protected]>

x86: irq: Enable SCI on IRQ9

By default SCI is disabled after power on. ACTL is the register to
enable SCI and route it to PIC/APIC. To support both ACPI in PIC
mode and APIC mode, configure SCI to use IRQ9.

Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Tested-by: Stefan Roese <[email protected]>

x86: irq: Reserve IRQ9 for ACPI in PIC mode

Reserve IRQ9 which is to be used as SCI interrupt number
for ACPI in PIC mode.

Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Tested-by: Stefan Roese <[email protected]>
Reviewed-by: Simon Glass <[email protected]>

x86: acpi: Fix compiler warnings in write_acpi_tables()

Fix the following two build warnings in function 'write_acpi_tables':

  warning: format '%lx' expects argument of type 'long unsigned int',
  but argument 2 has type 'u32' [-Wformat=]

Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Tested-by: Stefan Roese <[email protected]>
Reviewed-by: Simon Glass <[email protected]>

x86: Fix build warning in tables.c when CONFIG_SEABIOS

The following build warning is seen in tables.c:

  warning: implicit declaration of function 'memalign'

Add the missing header file to fix it.

Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Tested-by: Stefan Roese <[email protected]>
Reviewed-by: Simon Glass <[email protected]>

x86: Drop asm/acpi.h

Remove asm/acpi.h which is never used.

Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Tested-by: Stefan Roese <[email protected]>
Reviewed-by: Simon Glass <[email protected]>

Merge git://git.denx.de/u-boot-dm

Merge branch 'master' of git://www.denx.de/git/u-boot-imx

dm: mmc: test: Add tests for MMC

Add a simple test which checks that a sandbox-emulated SD card can be used
correctly. This tests plumbing through the MMC stack's block-device
implementaion.

Signed-off-by: Simon Glass <[email protected]>

dm: sandbox: mmc: Enable building MMC code for sandbox

Enable building the MMC code for sandbox. This increases build
coverage for sandbox.

Signed-off-by: Simon Glass <[email protected]>

dm: mmc: sandbox: Add an SD-card emulation

Add an emulation of an SD card to sandbox, allowing MMC to be used in tests.
The emulation is very simple, supporting only card detection and reading
test data.

Signed-off-by: Simon Glass <[email protected]>

dm: mmc: Add support for driver-model block devices

Add support for enabling CONFIG_BLK with MMC. This involves changing a
few functions to use struct udevice and adding a MMC block device driver.

Signed-off-by: Simon Glass <[email protected]>

dm: mmc: Add a way to bind MMC devices with driver model

Binding an MMC device when CONFIG_BLK is enabled requires that a block
device be bound as a child of the MMC device. Add a function to do this.
The mmc_create() method will be used only when DM_BLK is disabled.

Add an unbind method also.

Signed-off-by: Simon Glass <[email protected]>

dm: mmc: Implement the MMC functions for block devices

Implement the functions in mmc_legacy.c for driver-model block devices, so
that MMC can use driver model for these. This allows CONFIG_BLK to be enabled
with DM_MMC.

Signed-off-by: Simon Glass <[email protected]>

dm: sandbox: Only enable the sandbox MMC driver when valid

This driver will require generic MMC and block-device support in a future
commit. To avoid test errors, make this change now.

Signed-off-by: Simon Glass <[email protected]>

dm: mmc: Adjust mmc_switch_part() to use a struct mmc

Instead of looking up the MMC device by number, just pass it in. This makes
it possible to use this function with driver model.

Signed-off-by: Simon Glass <[email protected]>

dm: blk: Use the correct error code for blk_get_device_by_str()

Return -EINVAL instead of -1 in this function, to provide a more meaningful
error.

Signed-off-by: Simon Glass <[email protected]>

dm: mmc: Move the device list into a separate file

At present the MMC subsystem maintains its own list of MMC devices. This
cannot work with driver model, which needs to maintain this itself. Move the
list code into a separate 'legacy' file. The core MMC code remains, and will
be shared with the driver-model implementation.

Signed-off-by: Simon Glass <[email protected]>

dm: mmc: Set up the device pointer when using the MMC uclass

Update the existing drivers to set up this new pointer. This will be required
by the MMC uclass.

Signed-off-by: Simon Glass <[email protected]>

dm: blk: Add a comment as to why the bdev member is needed

This member should be explained, since it is not obvious why it is needed.
Add a comment.

Signed-off-by: Simon Glass <[email protected]>

dm: part: Drop the block_drvr table

This is not needed since we can use the functions provided by the legacy
block device support.

Signed-off-by: Simon Glass <[email protected]>

dm: part: Use the legacy block driver for hardware partition support

Drop use of the table in part.c for this feature.

Signed-off-by: Simon Glass <[email protected]>

dm: blk: Add functions to select a hardware partition

The block device uclass does not currently support selecting a particular
hardware partition but this is needed for MMC. Add it so that the blk API
can support MMC properly.

Signed-off-by: Simon Glass <[email protected]>

dm: mmc: Use the new select_hwpart() API

Avoid calling directly into the MMC code - use the new API call instead.

Signed-off-by: Simon Glass <[email protected]>

dm: mmc: spl: Use the legacy block interface in SPL

Bring this in for SPL so that we can use generic code for loading from
block devices.

Signed-off-by: Simon Glass <[email protected]>

dm: mmc: Add a function to obtain the block device

The MMC block device is contained within struct mmc. But with driver model
this will not be the case. Add a function to obtain the block device. We
can later implement this for CONFIG_BLK.

Signed-off-by: Simon Glass <[email protected]>

dm: mmc: Implement the select_hwpart() method

Implement this method so that hardware partitions will work correctly with
MMC.

Signed-off-by: Simon Glass <[email protected]>

dm: mmc: Move mmc_switch_part() above its callers

This function is defined after it is used. In preparation for making it
static, move it up a little. Also drop the printf() which should not appear
in a driver.

Signed-off-by: Simon Glass <[email protected]>

dm: blk: Free the block device name when unbound

Mark the device name as allocated so that it will be freed correctly when the
device is unbound.

Signed-off-by: Simon Glass <[email protected]>

dm: core: Allow device names to be freed automatically

Some devices have a name that is stored in allocated memory. At present
there is no mechanism to free this memory when the device is unbound.

Add a device flag to track whether a name is allocated and a function to
add the flag. Free the memory when the device is unbound.

Signed-off-by: Simon Glass <[email protected]>

dm: blk: Fix allocation of block-device numbering

Due to code ordering the block devices are not numbered sequentially. Fix
this.

Signed-off-by: Simon Glass <[email protected]>

dm: sandbox: Enable systemace

Enable building the systemace code for sandbox. This increases build
coverage for sandbox.

Signed-off-by: Simon Glass <[email protected]>

dm: systemace: Add driver-mode block-device support

Add support for CONFIG_BLK to the systemace driver.

Signed-off-by: Simon Glass <[email protected]>

dm: systemace: Reorder function to avoid forward declarataions

Move the systemace_get_dev() function below systemace_read() so that we can
avoid a forward declaration.

Signed-off-by: Simon Glass <[email protected]>

dm: blk: Add a easier way to create a named block device

Add a function that automatically builds the device name given the parent
and a supplied string. Most callers will want to do this, so putting this
functionality in one place makes more sense.

Signed-off-by: Simon Glass <[email protected]>

dm: blk: Allow blk_create_device() to allocate the device number

Allow a devnum parameter of -1 to indicate that the device number should be
alocated automatically. The next highest available device number for that
interface type is used.

Signed-off-by: Simon Glass <[email protected]>

dm: sandbox: Enable SATA

Enable building the SATA code for sandbox. This increases build coverage
for sandbox.

Signed-off-by: Simon Glass <[email protected]>

dm: sata: Add support for driver-model block devices

Add driver-model block-device support to the SATA implementation. This is
just a dummy implementation for now, since the SATA low-level API uses
numbered devices and that doesn't fit with driver model.

Signed-off-by: Simon Glass <[email protected]>

dm: sandbox: Enable SCSI

Enable building the SCSI code for sandbox. This increases build coverage
for sandbox.

Signed-off-by: Simon Glass <[email protected]>

dm: scsi: Add support for driver-model block devices

Add driver-model block-device support to the SCSI implementation.

Signed-off-by: Simon Glass <[email protected]>

dm: sandbox: Enable IDE

Enable building the IDE code for sandbox. This is for build coverage only.
It does not currently work.

Signed-off-by: Simon Glass <[email protected]>

dm: ide: Add support for driver-model block devices

Add driver-model block-device support to the IDE implementation.

Signed-off-by: Simon Glass <[email protected]>

dm: part: Drop the get_dev() method

This is now handled by the legacy block driver. The get_dev() method is
no-longer used. Drop it.

Signed-off-by: Simon Glass <[email protected]>

dm: sandbox: Drop the host_get_dev() function

This function is implemented by the legacy block functions now. Drop it.

Signed-off-by: Simon Glass <[email protected]>

dm: blk: Drop the systemace.h header

This has nothing of consequence. Remove it and its only inclusion site.

Signed-off-by: Simon Glass <[email protected]>

dm: systemace: Drop the get_dev() function

This function is implemented by the legacy block functions now. Drop it.

Signed-off-by: Simon Glass <[email protected]>

dm: sata: Drop the get_dev() function

This function is implemented by the legacy block functions now. Drop it.

We cannot yet make sata_dev_desc[] private to common/sata.c as it is used by
the SATA drivers. This will require the SATA interface to be reworked.

Signed-off-by: Simon Glass <[email protected]>

dm: scsi: Drop the get_dev() function

This function is implemented by the legacy block functions now. Drop it.

Signed-off-by: Simon Glass <[email protected]>

dm: mmc: Drop the get_dev() function

This function is implemented by the legacy block functions now. Drop it.

Signed-off-by: Simon Glass <[email protected]>

dm: ide: Drop the get_dev() function

This function is implemented by the legacy block functions now. Drop it.

Signed-off-by: Simon Glass <[email protected]>

dm: usb: Drop the get_dev() function

This function is implemented by the legacy block functions now. Drop it.

Signed-off-by: Simon Glass <[email protected]>

dm: disk: Use legacy block driver info for block device access

Instead of calling xx_get_dev() functions for each interface type, use the
new legacy block driver which can provide the device through its interface.

Signed-off-by: Simon Glass <[email protected]>

dm: sata: Separate the non-command code into its own file

At present the SATA command code includes both the command-processing code
and the core SATA functions and data structures.

Separate the latter into its own file, adding functions as needed to avoid
the command code accessing data structures directly.

With this commit:
- All CONFIG option are referenced from the non-command code
- The concept of a 'current SATA device' is confined to the command code

This will make it easier to convert this code to driver model.

Signed-off-by: Simon Glass <[email protected]>

dm: ide: Separate the non-command code into its own file

At present the IDE command code includes both the command-processing code
and the core IDE functions and data structures.

Separate the latter into its own file, adding functions as needed to avoid
the command code accessing data structures directly.

With this commit:
- Most CONFIG option are referenced from the non-command code
- The concept of a 'current IDE device' is confined to the command code

This will make it easier to convert this code to driver model.

Signed-off-by: Simon Glass <[email protected]>

dm: scsi: Separate the non-command code into its own file

At present the SCSI command code includes both the command-processing code
and the core SCSI functions and data structures.

Separate the latter into its own file, adding functions as needed to avoid
the command code accessing data structures directly. This functions use the
new legacy block functions.

With this commit:
- There is no CONFIG option referenced from the command code
- The concept of a 'current SCSI device' is confined to the command code

This will make it easier to convert this code to driver model.

Signed-off-by: Simon Glass <[email protected]>

dm: mmc: Add an implementation of the 'devnum' functions

Now that the MMC code accesses devices by number, we can implement this same
interface for driver model, allowing MMC to support using driver model for
block devices.

Add the required functions to the uclass.

Signed-off-by: Simon Glass <[email protected]>

dm: mmc: Add a legacy block interface for MMC

Add a legacy block interface for MMC.

Signed-off-by: Simon Glass <[email protected]>

dm: usb: Add a legacy block interface for USB storage

Add a legacy block interface for USB storage.

Signed-off-by: Simon Glass <[email protected]>

dm: sandbox: Add a legacy host block interface

Add a legacy block interface for sandbox host.

Signed-off-by: Simon Glass <[email protected]>

dm: systemace: Add a legacy block interface

Add a legacy block interface for systemace.

Signed-off-by: Simon Glass <[email protected]>

dm: blk: Add a legacy block interface

There is quite a bit of duplicated common code related to block devices
in the IDE and SCSI implementations.

Create some helper functions that can be used to reduce the duplication.
These rely on a linker list of interface-type drivers

Signed-off-by: Simon Glass <[email protected]>

dm: scsi: Rename CONFIG_CMD_SCSI to CONFIG_SCSI

This option currently enables both the command and the SCSI functionality.
Rename the existing option to CONFIG_SCSI since most of the code relates
to the feature.

Signed-off-by: Simon Glass <[email protected]>

dm: sata: Fix code style problems in cmd/sata.c

This file has a few coding style problems. Fix these to make future updates
easier.

Signed-off-by: Simon Glass <[email protected]>

dm: ide: Remove the forward declarations

Reorder the code to avoid needing forward declarations. Fix up code style
as needed.

Signed-off-by: Simon Glass <[email protected]>

dm: ide: Correct various code style problems

Adjust common/ide.c so that it passes most checkpatch.pl checks.

Signed-off-by: Simon Glass <[email protected]>

dm: scsi: Fix up code style

Update the code style of this file so that it passes checkpatch.pl.

Signed-off-by: Simon Glass <[email protected]>

dm: scsi: Remove the forward declarations

Reorder the code to avoid needing forward declarations.

Signed-off-by: Simon Glass <[email protected]>

sandbox: Add dummy SATA functions

Add some functions needed by the SATA code. This allows it to be compiled
for sandbox, thus increasing build coverage.

Signed-off-by: Simon Glass <[email protected]>

sandbox: Add dummy SCSI functions

Add some functions needed by the SCSI code. This allows it to be compiled
for sandbox, thus increasing build coverage.

Signed-off-by: Simon Glass <[email protected]>

sandbox: Add string and 16-bit I/O functions

Add outsw() and insw() functions for sandbox, as these are needed by the IDE
code. The functions will not do anything useful if called, but allow the
code to be compiled.

Also add out16() and in16(), required by systemace.

Signed-off-by: Simon Glass <[email protected]>

Allow iotrace byte access to use an address of any size

If an address is used with readb() and writeb() which is smaller than the
expected size (e.g. 32-bit value on a machine with 64-bit addresses), a
warning results. Fix this by adding a cast.

Signed-off-by: Simon Glass <[email protected]>

dm: Rename disk uclass to ahci

This started as 'ahci' and was renamed to 'disk' during code review. But it
seems that this is too generic. Now that we have a 'blk' uclass, we can use
that as the generic piece, and revert to ahci for this.

Signed-off-by: Simon Glass <[email protected]>

pci: Drop CONFIG_SYS_SCSI_SCAN_BUS_REVERSE

This option is not used by any board. Drop it.

Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Bin Meng <[email protected]>

dm: sandbox: Add a board for sandbox without CONFIG_BLK

While the driver-model block device support is in progress, it is useful to
build sandbox both with and without CONFIG_BLK. Add a separate board for
the latter.

Signed-off-by: Simon Glass <[email protected]>

Revert "dm: sandbox: Drop the pre-DM host implementation"

Bring this support back so that sandbox can be compiled with CONFIG_BLK. This
allows sandbox to have greater build coverage during the block-device
transition. This can be removed again later.

This reverts commit 33cf727b1634dbd9cd68a6ebc444a88f053822d7.

Signed-off-by: Simon Glass <[email protected]>

gpio: exynos(s5p): remove gpio_xlate routine

With the addition of GPIO_ACTIVE_LOW parsing in gpio-uclass,
the Exynos/S5P gpio driver doesn't need a custom xlate routine.

Signed-off-by: Eric Nelson <[email protected]>
Acked-by: Simon Glass <[email protected]>
Acked-by: Minkyu Kang <[email protected]>

gpio: rk: remove gpio_xlate routine

With the addition of GPIO_ACTIVE_LOW parsing in gpio-uclass,
the Rockchip gpio driver doesn't need a custom xlate routine.

Signed-off-by: Eric Nelson <[email protected]>
Acked-by: Simon Glass <[email protected]>

gpio: pic32: remove gpio_xlate routine

With the addition of GPIO_ACTIVE_LOW parsing in gpio-uclass,
the pic32 gpio driver doesn't need a custom xlate routine.

Signed-off-by: Eric Nelson <[email protected]>
Acked-by: Simon Glass <[email protected]>
Reviewed-by: Purna Chandra Mandal <[email protected]>

gpio: omap: remove gpio_xlate routine

With the addition of GPIO_ACTIVE_LOW parsing in gpio-uclass,
the omap gpio driver doesn't need a custom xlate routine.

Signed-off-by: Eric Nelson <[email protected]>
Acked-by: Simon Glass <[email protected]>

gpio: intel_broadwell: remove gpio_xlate routine

With the addition of GPIO_ACTIVE_LOW parsing in gpio-uclass,
the intel_broadwell driver doesn't need a custom xlate routine.

Signed-off-by: Eric Nelson <[email protected]>
Acked-by: Simon Glass <[email protected]>

dm: gpio: add a default gpio xlate routine

Many drivers use a common form of offset + flags for device
tree nodes. e.g.:
<&gpio1 2 GPIO_ACTIVE_LOW>

This patch adds a common implementation of this type of parsing
and calls it when a gpio driver doesn't supply its' own xlate
routine.

This will allow removal of the driver-specific versions in a
handful of drivers and simplify the addition of new drivers.

Signed-off-by: Eric Nelson <[email protected]>
Reviewed-by: Stephen Warren <[email protected]>
Acked-by: Simon Glass <[email protected]>

drivers: usb: common: add common code for usb drivers to use

Add common usb code which usb drivers makes use of it.

Signed-off-by: Mugunthan V N <[email protected]>
Reviewed-by: Simon Glass <[email protected]>

dm: gpio: introduce 74x164 driver

Introduce driver to support "fairchild,74hc595" devices.
1. Take linux drivers/drivers/gpio/gpio-74x164.c as reference.
2. Following the naming used in Linux driver with gen_7x164 as the prefix.
3. Enable CONFIG_DM_74X164 to use this driver.
4. Follow Documentation/devicetree/bindings/gpio/gpio-74x164.txt to add device
   nodes
5. Tested on i.MX6 UltraLite with 74LV595 using gpio command and oscillograph.

Signed-off-by: Peng Fan <[email protected]>
Cc: Simon Glass <[email protected]>
Cc: Masahiro Yamada <[email protected]>
Cc: Chin Liang See <[email protected]>
Cc: Bhuvanchandra DV <[email protected]>
Cc: Daniel Schwierzeck <[email protected]>
Cc: Fabio Estevam <[email protected]>
Cc: Stefano Babic <[email protected]>
Reviewed-by: Simon Glass <[email protected]>