It is possible to use host-side USB with externally-provided VBUS. For
example, some USB OTG cables have an extra power input which powers
both the board and the USB peripheral.
To support this setup, skip enabling the VBUS switch/regulator if VBUS
voltage is already present. This behavior matches the Linux PHY driver.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Now that this functionality is modeled using the device tree and
regulator uclass, the named GPIO is not referenced anywhere. Remove it.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Update boards to use the USB power supply driver, as referenced in the
device tree, instead of a virtual GPIO. This removes the need for some
DM-incompatible special cases in the GPIO driver.
The following five boards used AXP0-VBUS-DETECT in their config, but are
missing the "usb0_vbus_power-supply" property in their device tree:
- Ainol_AW1_defconfig / sun7i-a20-ainol-aw1
- Cubieboard4_defconfig / sun9i-a80-cubieboard4
- Merrii_A80_Optimus_defconfig / sun9i-a80-optimus
- Yones_Toptech_BD1078_defconfig / sun7i-a20-yones-toptech-bd1078
- Yones_Toptech_BS1078_V2_defconfig /
sun6i-a31s-yones-toptech-bs1078-v2
None of those five boards have the MUSB controller (USB OTG) enabled in
their device trees, so this change should not break anything for them.
Additionally, the following board intentionally omits the property
because VBUS is always enabled:
- Nintendo_NES_Classic_Edition_defconfig /
sun8i-r16-nintendo-nes-classic
The PHY driver already assumes VBUS is enabled when no detection method
is available, so again this will not cause any problems.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
This driver reports the presence/absence of voltage on the PMIC's USB
VBUS pin. This information is used by the USB PHY driver. The
corresponding Linux driver uses the power supply class, which does not
exist in U-Boot. UCLASS_REGULATOR seems to be the closest match.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Acked-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
This more closely matches the U-Boot driver to the Linux version.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Michael Trimarchi <micahel@amarulasolutions.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Clocks, resets, and pinmuxes are now handled by the driver model, so the
only thing the "board" code needs to do is load the driver. This matches
the pattern used by other DM raw NAND drivers (there is no NAND uclass).
The actual board code is now only needed in SPL.
Reviewed-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
As a first step toward converting this driver to the driver model, use
the ofnode abstraction to replace direct references to the FDT blob.
Using ofnode_read_u32_index removes an extra pair of loops and makes the
allwinner,rb property optional, matching the devicetree binding.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Acked-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Each chip is required to have a unique CS number ("reg" property) in the
range 0-7, so there is no need to separately count the number of chips.
Reviewed-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
NAND is always at function 2 on port C.
Pin lists and mux values were taken from the Linux drivers.
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Currently NAND clock setup is done in board code, both in SPL and in
U-Boot proper. Add the NAND clocks/resets here so they can be used by
the "full" NAND driver once it is converted to the driver model.
The bit locations are copied from the Linux CCU drivers.
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Sean Anderson <seanga2@gmail.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
On sunxi boards, SPL looks for U-Boot at a 32 KiB offset, unless SPL is
larger than 32 KiB, in which case U-Boot immediately follows SPL. See
the logic in spl_mmc_get_uboot_raw_sector() and spl_spi_load_image().
In two cases, the existing binman description mismatches the SPL code.
For 64-bit boards, binman would place U-Boot immediately following SPL,
even if SPL is smaller than 32 KiB. This can happen when SPL MMC support
is disabled (i.e. when booting from SPI flash).
In contrast, for 32-bit boards, binman would place U-Boot at 32 KiB,
even if SPL is larger than that. This happens because the 'offset'
property does not consider the size of previous entries.
Fix both issues by setting a minimum size for the SPL entry, which
exactly matches the logic in the SPL code. Unfortunately, this size must
be provided as a magic number, since none of the relevant config symbols
(SPL_PAD_TO, SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR, and SYS_SPI_U_BOOT_OFFS)
are guaranteed to be defined in all cases.
Fixes: cfa3db602c ("sunxi: Convert 64-bit boards to use binman")
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
To quote the author:
Adding block storage emulation for NVM XIP flash devices.
Some paltforms such as Corstone-1000 need to see NVM XIP raw flash
as a block storage device with read only capability.
Here NVM flash devices are devices with addressable
memory (e.g: QSPI NOR flash).
The NVM XIP block storage emulation provides the following features:
- Emulate NVM XIP raw flash as a block storage device with read only capability
- Being generic by design and can be used by any platform
- Device tree node
- Platforms can use multiple NVM XIP devices at the same time by defining a
DT node for each one of them
- A generic NVMXIP block driver allowing to read from the XIP flash
- A generic NVMXIP Uclass driver for binding the block device
- A generic NVMXIP QSPI driver
- Implemented on top of memory-mapped IO (using readq macro)
- Enabling NVMXIP in sandbox64
- A sandbox test case
- Enabling NVMXIP in Corstone1000 platform as a use case
For more details please refer to doc/develop/driver-model/nvmxip.rst
provide a test for NVM XIP devices
The test case allows to make sure of the following:
- The NVM XIP QSPI devices are probed
- The DT entries are read correctly
- the data read from the flash by the NVMXIP block driver is correct
Signed-off-by: Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
make readq return unsigned long
readq should return 64-bit data
Signed-off-by: Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
add nvmxip_qspi driver under UCLASS_NVMXIP
The device associated with this driver is the parent of the blk#<id> device
nvmxip_qspi can be reused by other platforms. If the platform
has custom settings to apply before using the flash, then the platform
can provide its own parent driver belonging to UCLASS_NVMXIP and reuse
nvmxip-blk driver. The custom driver can be implemented like nvmxip_qspi in
addition to the platform custom settings.
Platforms can use multiple NVM XIP devices at the same time by defining a
DT node for each one of them.
For more details please refer to doc/develop/driver-model/nvmxip_qspi.rst
Signed-off-by: Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
add block storage emulation for NVM XIP flash devices
Some paltforms such as Corstone-1000 need to see NVM XIP raw flash
as a block storage device with read only capability.
Here NVM flash devices are devices with addressable
memory (e.g: QSPI NOR flash).
The implementation is generic and can be used by different platforms.
Two drivers are provided as follows.
nvmxip-blk :
a generic block driver allowing to read from the XIP flash
nvmxip Uclass driver :
When a device is described in the DT and associated with
UCLASS_NVMXIP, the Uclass creates a block device and binds it with
the nvmxip-blk.
Platforms can use multiple NVM XIP devices at the same time by defining a
DT node for each one of them.
Signed-off-by: Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
To quote the author:
This code was converted to driver model a long time again but it was a
pretty rough conversion. It introduced a few minor bugs, e.g. the device
capacity is incorrect and some flags are lost (such as lba48).
This series tidies up the code and fixes these bugs. This involves quite
a bit of refactoring, so it is done one patch at a time for easier
review.
The code has quite a few unnecessary brackets and comparisons to zero,
etc. Fix these up as well as some upper-case hex values and use of 0x in
printf() strings.
Signed-off-by: Simon Glass <sjg@chromium.org>
Avoid the use of the function name in a few of the debug() calls, since
this causes a checkpatch warning. Convert all other calls too.
Use lower-case hex consistently.
Signed-off-by: Simon Glass <sjg@chromium.org>
Fix a longstanding bug where the LBA is calculated as the size of the
media instead of the number of blocks. This was perhaps not noticed
earlier since it prints the correct value first, before setting the wrong
value.
Drop the unnecessary blksz variable while we are here.
Signed-off-by: Simon Glass <sjg@chromium.org>
Fixes: 68e6f221ed ("block: ide: Fix block read/write with driver model")
We only use one member of the ide_dev_desc[] array at a time and it does
not stick around outside ide_probe(). Use a single element instead.
Copy over the missing members of blk_desc at the same, since this was
missing from the previous code.
Signed-off-by: Simon Glass <sjg@chromium.org>
Fixes: 68e6f221ed ("block: ide: Fix block read/write with driver model")
Rather than having the caller fill some of this in, do it all in the
ide_ident() function, since it knows all the values.
Signed-off-by: Simon Glass <sjg@chromium.org>
Update ide_ident() to indicate whether it finds a device or not. Use
that to decide whether to create a block device for it, rather than
looking DEV_TYPE_UNKNOWN.
Signed-off-by: Simon Glass <sjg@chromium.org>
Most of the code uses 'desc' as the variable name for a blk descriptor.
Change ide to do the same.
Tidy up some extra brackets and types while we are here.
Leave the code in ide_probe() alone since it is about to be refactored.
Signed-off-by: Simon Glass <sjg@chromium.org>
The two loops in this function operate on the same ide_dev_desc[] array.
Combine them to reduce duplication.
Signed-off-by: Simon Glass <sjg@chromium.org>
Now that ide_probe() is the only caller of ide_init(), move all the code
into the probe function, so it is easier to refactor it.
Move ide_dev_desc[] into ide_probe() to, since it is the only user.
Signed-off-by: Simon Glass <sjg@chromium.org>
The current implementation adds this information in the block device's
probe() function, which is called in the blk_probe_or_unbind() in
ide_probe().
It is simpler to do this in ide_probe() itself, since the effect is the
same. This helps to consolidate use of ide_dev_desc[] which we would like
to remove.
Use strlcpy() to keep checkpatch happy.
Signed-off-by: Simon Glass <sjg@chromium.org>
Use IS_ENABLED() instead for all conditions. Add the 'lba48' flag into
struct blk_desc always, since it uses very little space. Use a bool so
the meaning is clearer.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Change the if() to remove extra brackets and check for the positive case
first, i.e. when a device is found. Exit the loop in that case, with the
retry logic in the 'else' part.
Signed-off-by: Simon Glass <sjg@chromium.org>
This code is hard to follow as it uses #ifdef in a strange way. Adjust
it to avoid the preprocessor. Drop the special return for the non-ATAPI
case since we can rely on tries becoming 0 and exiting the loop.
Signed-off-by: Simon Glass <sjg@chromium.org>
Use a 'tries' variable which starts at the number of tries we want to do,
rather than a 'retries' one that stops at either 1 or 2. This will make it
easier to refactor the code to avoid the horrible #ifdefs
Signed-off-by: Simon Glass <sjg@chromium.org>
The use of atapi_read() was incorrect dropped. Fix this so that it will
be used when needed. Use a udevice for the first argument of atapi_read()
so it is consistent with ide_read().
This requires much of the ATAPI code to be brought out from behind the
existing #ifdef. It will still be removed by the compiler if it is not
needed.
Add an atapi flag to struct blk_desc so the information can be retained.
Fixes: 145df842b4 ("dm: ide: Add support for driver-model block devices")
Fixes: d0075059e4 ("ide: Drop non-DM code for BLK")
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
These are not used from outside this file anymore. Make them static and
remove them from the header file.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present the code does ide_init() as a separate operation, then calls
device_probe() to copy over the information. We can call ide_init() from
probe just as easily.
The only difference is that using 'ide init' twice will do nothing.
However it already fails to copy over the new data in that case, so the
effect is the same. For now, unbind the block devices and remove the IDE
device, which causes the bus to be probed again. Later patches will fix
this up fully, so that all blk_desc data is copied across.
Since ide_reset() is only called from ide_init(), there is no need to init
the ide_dev_desc[] array. This is already done at the end of ide_init() so
drop this code.
The call to uclass_first_device() is now within the probe() function of
the same device, so does nothing. Drop it.
Signed-off-by: Simon Glass <sjg@chromium.org>
