Commit graph

16590 commits

Author SHA1 Message Date
Frank Wunderlich
47b1431d50 eth: mtk-eth: aarch64: fix build warnings on ethernet-driver
building mtk ethernet driver for aarch64 (mt7622) results
in warnings/errors

  "error: cast from pointer to integer of different size"

Fixes: 23f17164d9 ("ethernet: MediaTek: add ethernet driver for MediaTek ARM-based SoCs")
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
2020-02-07 13:59:58 -05:00
MarkLee
e395717ca9 eth: mtk-eth: add mt7622 support in mediatek eth driver
This patch add mt7622 support in mediatek eth driver

Signed-off-by: MarkLee <Mark-MC.Lee@mediatek.com>
2020-02-07 13:59:58 -05:00
MarkLee
b4ef49a905 eth: mtk-eth: add sgmii mode support in mediatek eth driver
This patch add sgmii init part for the mediatek SoC that
support sgmii mode. It is a must for mt7622.

Signed-off-by: MarkLee <Mark-MC.Lee@mediatek.com>
2020-02-07 13:59:58 -05:00
Simon Glass
d36856a385 tpm: Add a driver for H1/Cr50
H1 is a Google security chip present in recent Chromebooks, Pixel phones
and other devices. Cr50 is the name of the software that runs on H1 in
Chromebooks.

This chip is used to handle TPM-like functionality and also has quite a
few additional features.

Add a driver for this.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-07 22:46:35 +08:00
Simon Glass
025543554c dm: irq: Add support for requesting interrupts
At present driver model supports the IRQ uclass but there is no way to
request a particular interrupt for a driver.

Add a mechanism, similar to clock and reset, to read the interrupts
required by a device from the device tree and to request those interrupts.

U-Boot itself does not have interrupt-driven handlers, so just provide a
means to read and clear an interrupt. This can be useful to handle
peripherals which must use an interrupt to determine when data is
available, for example.

Bring over the basic binding file as well, from Linux v5.4. Note that the
older binding is not supported in U-Boot; the newer 'special form' must be
used.

Add a simple test of the new functionality.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-02-07 22:46:32 +08:00
Simon Glass
69c2dc937a x86: Give each driver an IRQ type
Add an IRQ type to each driver and use irq_first_device_type() to find
and probe the correct one.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-02-07 22:45:35 +08:00
Simon Glass
ba87607971 dm: irq: Add support for interrupt controller types
There can be different types of interrupt controllers in a system and some
drivers may need to distinguish between these. In general this can be
handled using the device tree by adding the interrupt information to
device nodes.

However on x86 devices we have interrupt controllers which are not tied
to any particular device and not really used in U-Boot. These still need
to be inited, so a convenient method is to give each controller a type
and allow a particular controller type to be probed.

Add support for this in sandbox along with a test.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: remove the new bland line at EOF of test/dm/irq.c]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2020-02-07 22:44:59 +08:00
Simon Glass
b4d00b256e x86: Add a clock driver for Intel devices
So far we have avoided adding a clock driver for Intel devices. But the
Designware I2C driver needs a different clock (133MHz) on Intel devices
than on others (166MHz). Add a simple driver that provides this
information.

This driver can be expanded later as needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-02-07 22:41:24 +08:00
Simon Glass
fdec36f248 tegra: i2c: Change driver to use helper function
Now that we have uclass_first_device_drvdata(), use it from the I2C driver
to reduce code duplication.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-02-07 22:41:24 +08:00
Simon Glass
ae44cafcb3 dm: core: Change syscon to use helper function
Now that we have uclass_first_device_drvdata(), use it from syscon to
reduce code duplication.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-02-07 22:41:24 +08:00
Simon Glass
50162348f0 dm: core: Add a function to find a device by drvdata
It is sometimes useful to find a device in a uclass using only its driver
data. The driver data often indicates the 'subtype' of the device, e,g,
via its compatible string.

Add a function to handle this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-02-07 22:41:24 +08:00
Tom Rini
457faef262 Merge branch 'master' of git://git.denx.de/u-boot-socfpga
- Gen 5 and Watchdog fixes
2020-02-06 23:18:42 -05:00
Anatolij Gustschin
8a6ffeda97 video: enable VIDEO_ANSI and all VIDEO_BBP options
This partially reverts changes by commit 2cc393f32f
("video: make BPP and ANSI configs optional") since it
caused issues with other boards (missing LCD console
output on pinebook, x86 platform or sandbox). Enable
all disabled options again and opt out of not supported
color depth in board defconfigs.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Reported-by: Vagrant Cascadian <vagrant@debian.org>
2020-02-06 16:11:47 -05:00
Simon Glass
21d651fb29 sandbox: Complete migration away from os_malloc()
Now that we can use direct access to the system malloc() in sandbox, drop
the remaining uses of os_malloc().

The only one remaining now is for the RAM buffer, which we do want to be
at a known address, so this is intended.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05 21:48:23 -07:00
Simon Glass
f217651575 dm: core: Drop the inclusion of linux/compat.h in dm.h
Most files don't need this header and it pulls in quite of lots of stuff,
malloc() in particular. Drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05 21:48:22 -07:00
Simon Glass
336d4615f8 dm: core: Create a new header file for 'compat' features
At present dm/device.h includes the linux-compatible features. This
requires including linux/compat.h which in turn includes a lot of headers.
One of these is malloc.h which we thus end up including in every file in
U-Boot. Apart from the inefficiency of this, it is problematic for sandbox
which needs to use the system malloc() in some files.

Move the compatibility features into a separate header file.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05 19:33:46 -07:00
Simon Glass
61b29b8268 dm: core: Require users of devres to include the header
At present devres.h is included in all files that include dm.h but few
make use of it. Also this pulls in linux/compat which adds several more
headers. Drop the automatic inclusion and require files to include devres
themselves. This provides a good indication of which files use devres.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Anatolij Gustschin <agust@denx.de>
2020-02-05 19:33:46 -07:00
Simon Glass
a466db5adb sandbox: Support changing the LCD colour depth
Add a new device-tree property to control the colour depth. At present we
support 16bpp and 32bpp.

While we are here, update the code to use livetree.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Anatolij Gustschin <agust@denx.de>
2020-02-05 19:33:46 -07:00
Simon Glass
6be88c7282 sandbox: sdl: Add an option to double the screen size
On high-DPI displays U-Boot's LCD window can look very small. Add a
-K flag to expand it to make things easier to read, while still using
the existing resolution internally.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Anatolij Gustschin <agust@denx.de>
2020-02-05 19:33:46 -07:00
Simon Glass
02662480a8 sandbox: sound: Handle errors better in sound_beep()
At present an error does not stop the sound-output loop. This is incorrect
since nothing can be gained by trying to continue. Fix it.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05 19:33:46 -07:00
Simon Glass
3062cd17af sound: Add a new stop_play() method
At present there is no positive indication that U-Boot has finished
sending sound data. This means that it is not possible to power down an
audio codec, for example. Add a new method that is called once all sound
data has been sent.

Add a new method for this, called when the sound_play() call is done.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05 19:33:46 -07:00
Simon Glass
8d38a8459b mtd: Rename free() to rfree()
This function name conflicts with our desire to #define free() to
something else on sandbox. Since it deals with resources, rename it to
rfree().

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05 19:33:46 -07:00
Simon Glass
aae9588223 dma: Rename free() to rfree()
This function name conflicts with our desire to #define free() to
something else on sandbox. Since it deals with resources, rename it to
rfree().

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05 19:33:46 -07:00
Simon Glass
fb8c0d595f clk: Rename free() to rfree()
This function name conflicts with our desire to #define free() to
something else on sandbox. Since it deals with resources, rename it to
rfree().

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05 19:33:46 -07:00
Simon Glass
093152f275 gpio: Rename free() to rfree()
This function name conflicts with our desire to #define free() to
something else on sandbox. Since it deals with resources, rename it to
rfree().

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05 19:33:46 -07:00
Simon Glass
94474b25c3 reset: Rename free() to rfree()
This function name conflicts with our desire to #define free() to
something else on sandbox. Since it deals with resources, rename it to
rfree().

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05 19:33:46 -07:00
Simon Glass
4f51188e47 power-domain: Rename free() to rfree()
This function name conflicts with our desire to #define free() to
something else on sandbox. Since it deals with resources, rename it to
rfree().

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Anatolij Gustschin <agust@denx.de>
2020-02-05 19:33:46 -07:00
Simon Glass
cc92c3cc68 mailbox: Rename free() to rfree()
This function name conflicts with our desire to #define free() to
something else on sandbox. Since it deals with resources, rename it to
rfree().

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05 19:33:46 -07:00
Simon Glass
3b85ce8ec3 video: sandbox: Enable all colour depths
For sandbox we want to have the maximum possible build coverage, so enable
all colour depths for video.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Anatolij Gustschin <agust@denx.de>
2020-02-05 19:33:46 -07:00
Simon Glass
51973ccc41 video: Support truetype fonts on a 32-bit display
At present only a 16bpp display is supported for Truetype fonts. Add
support for 32bpp also since this is quite common.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Anatolij Gustschin <agust@denx.de>
2020-02-05 19:33:46 -07:00
Sean Anderson
7b9d60fc1f cmd: Add command to dump drivers and compatible strings
This adds a subcommand to dm to dump out what drivers are installed, and their
compatible strings. I have found this useful in ensuring that I have the correct
drivers compiled, and that I have put in the correct compatible strings.

Signed-off-by Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-02-05 19:33:46 -07:00
Thirupathaiah Annapureddy
8d73be7a8e tpm2: ftpm: A driver for firmware TPM running inside TEE
Add a driver for a firmware TPM running inside TEE.

Documentation of the firmware TPM:
https://www.microsoft.com/en-us/research/publication/ftpm-software-implementation-tpm-chip/

Implementation of the firmware TPM:
https://github.com/Microsoft/ms-tpm-20-ref/tree/master/Samples/ARM32-FirmwareTPM

Signed-off-by: Thirupathaiah Annapureddy <thiruan@linux.microsoft.com>
2020-02-05 19:33:46 -07:00
Simon Glass
eb7387ae14 sandbox: pmic: Correct i2c pmic emulator platdata method
This currently reads the uclass's private data in the ofdata_to_platdata
method which is not allowed, since the uclass has not read it from the
device tree. This happens in the probe method.

Fix it by adding a probe() method and moving the code there.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05 19:33:46 -07:00
Simon Glass
9ff5e0495d dm: core: Drop uclass_find_next_free_req_seq() conditions
These conditions are not needed and just reduce build coverage. Drop them.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05 19:33:45 -07:00
Simon Glass
903e83ee84 dm: core: Add a way to iterate through children, probing each
It is sometimes useful to process all children, making sure they are
probed first. Add functions to help with this and a macro to make it more
convenient.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05 19:33:45 -07:00
Simon Glass
f262d4ca4b dm: core: Add a way to read platdata for all child devices
When generating ACPI tables we need to make sure that all devices have
read their platform data, so that they can generate the tables correctly.

Rather than adding this code in ACPI, create a core function to handle it.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05 19:33:45 -07:00
Simon Glass
bd933bfd83 dm: core: Add ofnode_get_chosen_prop()
Add a function to read a property from the chosen node, providing access
to its length. Update ofnode_get_chosen_string() to make use of it.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05 19:33:45 -07:00
Simon Glass
1aada6313c dm: core: Reimplement ofnode_read_size()
Now that we have ofnode_read_prop() we can rewrite this function using
that one, reducing the amount of duplicated code.

Update ofnode_read_size() and move it up next to the other similar
functions.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05 19:33:45 -07:00
Simon Glass
a8167d8ee2 dm: core: Add ofnode_read_prop()
Add a new function to read a property that supports reading the length as
well.

Reimplement ofnode_read_string() using it and fix its comment.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05 19:33:45 -07:00
Simon Glass
14ca9f7f5a dm: core: Rename ofnode_get_chosen_prop()
This function is actually intended to read a string rather than a
property. All of its current callers use it that way. Also there is no way
to return the length of the property from this function.

Rename it to better indicate its purpose, using ofnode_read as the prefix
since this matches most other functions.

Also add some tests which are missing for these functions.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05 19:33:45 -07:00
Simon Glass
88b3a37eaa dm: core: Use const device for the dev_read_...() interface
These functions do not modify the device so should use a const pointer to
it. Update the code accordingly.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05 19:33:45 -07:00
Simon Glass
d975ce21ce dm: core: Use const device for the devfdt...() interface
These functions do not modify the device so should use a const pointer to
it. Update the code accordingly.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05 19:33:45 -07:00
Simon Glass
194fca9130 dm: pci: Update a few more interfaces for const udevice *
Tidy up a few places where const * should be used.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05 19:33:45 -07:00
Simon Glass
c4e72c4ad8 dm: pci: Update the PCI read_config() method to const dev *
At present this method uses a non-const udevice pointer, but the call
should not modify the device. Use a const pointer.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05 19:33:45 -07:00
Simon Glass
fc347fbdd4 dm: core: Use const where possible in device.h
Update this header file to use const devices where possible, to permit
callers to also use const.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05 19:33:45 -07:00
Tom Rini
f5cc89a82a Merge https://gitlab.denx.de/u-boot/custodians/u-boot-fsl-qoriq
- Bug fixes on ls1012a, ls1021a, ls1028ardb platforms Integrate fspi for
  ls1028a, add DM-I2C support, update secure boot header offset
2020-02-05 07:19:52 -05:00
Tom Rini
c95215a6ca - DFU support file operations lager then the default max size
- add dfu support to dwc2 for bcm2835
 - enable DFU for RPi4
 - Fix RPi4 memory map to include the genet device
 - add driver for the genet ethernet device
 - enable network support in RPi4 config
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Merge tag 'rpi-next-2020.04' of https://gitlab.denx.de/u-boot/custodians/u-boot-raspberrypi

- DFU support file operations lager then the default max size
- add dfu support to dwc2 for bcm2835
- enable DFU for RPi4
- Fix RPi4 memory map to include the genet device
- add driver for the genet ethernet device
- enable network support in RPi4 config
2020-02-05 07:18:12 -05:00
Marek Vasut
9a5a90ad9b ddr: altera: Add DDR2 support to Gen5 driver
Add DDR2 support to Gen5 DRAM driver. As the DDR2 macro names generated
by Quartus are named differently than the DDR3 ones, use anon unions to
store them in the same structures, without growing their size.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Ley Foon Tan <ley.foon.tan@intel.com>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
2020-02-05 03:01:57 +01:00
Marek Vasut
cf89ef8d10 watchdog: designware: Optionally fetch clock and reset from DT
Add optional support for fetching watchdog clock rate from DT
and ungating reset via reset framework. This is optional as not
all platforms using DW WDT support the clock and reset frameworks
yet.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <chin.liang.see@intel.com>
Cc: Dalon Westergreen <dwesterg@gmail.com>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Jagan Teki <jagan@amarulasolutions.com>
Cc: Ley Foon Tan <ley.foon.tan@intel.com>
Cc: Philipp Tomisch <philipp.tomisch@theobroma-systems.com>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Cc: Tien Fong Chee <tien.fong.chee@intel.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com> # roc-rk3399-pc
2020-02-05 03:01:57 +01:00
Marek Vasut
cf8c836788 watchdog: designware: Convert to DM and DT probing
Convert the designware watchdog timer driver to DM and add DT probing
support. Perform minor coding style clean up, like drop superfluous
braces. These ought to be no functional change.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <chin.liang.see@intel.com>
Cc: Dalon Westergreen <dwesterg@gmail.com>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Jagan Teki <jagan@amarulasolutions.com>
Cc: Ley Foon Tan <ley.foon.tan@intel.com>
Cc: Philipp Tomisch <philipp.tomisch@theobroma-systems.com>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Cc: Tien Fong Chee <tien.fong.chee@intel.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com> # roc-rk3399-pc
2020-02-05 03:01:57 +01:00
Anatolij Gustschin
8382b10192 video: mxsfb: call remove() when booting OS
Add DM_FLAG_OS_PREPARE flag to ensure that the driver's
remove() callback is invoked before booting the kernel.
This is required to stop the LCDIF controller. This was
the behaviour with old driver without DM_VIDEO support.
Without stopping the LCDIF we sometimes observe incorrect
Linux logo position.

Fixes: ae0760584b ("imx: mx6ul_14x14_evk: convert to DM_VIDEO")
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Reported-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
2020-02-04 23:04:28 +01:00
Anatolij Gustschin
ab6ea931de video: fix Coverity missing break issue
Fix:
>>>  CID 280902:  Control flow issues  (MISSING_BREAK)
>>>  The case for value "VIDEO_BPP32" is not terminated
>>>  by a 'break' statement.

Also fix
error: control reaches end of non-void function [-Werror=return-type]

Reported-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-02-04 23:02:56 +01:00
Tom Rini
d4827fcd4c Merge https://gitlab.denx.de/u-boot/custodians/u-boot-x86
- Various minor fixes for x86
- Switch to ACPI mode on Intel edison
- Support run-time configuration for NS16550 driver
- Update coreboot and slimbootloader serial drivers to use NS16550
run-time configuration
- ICH SPI driver fixes to hardware sequencing erase case
- Move ITSS from Apollo Lake to a more generic location
- Intel GPIO driver bug fixes
- Move to vs2017-win2016 platform build host for Azure pipelines
2020-02-04 11:36:49 -05:00
Biwen Li
c69103218e i2c: mxc_i2c: add DM_FLAG_PRE_RELOC flag
This adds DM_FLAG_PRE_RELOC flag to probe i2c driver
before relocation

Signed-off-by: Biwen Li <biwen.li@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
2020-02-04 16:20:25 +05:30
Biwen Li
42cd5cbce4 rtc: pcf8563: Add driver model support
Add support of driver model of pcf8563

Signed-off-by: Biwen Li <biwen.li@nxp.com>
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
2020-02-04 16:20:25 +05:30
Wolfgang Wallner
ea86e725d4 gpio: intel_gpio: Fix register/bit offsets intel_gpio_get_value()
Fix the following in intel_gpio_get_value():

 * The value of the register is contained in the variable 'reg', not in
   'mode'. The variable 'mode' contains only the configuration whether
   the gpio is currently an input or an output.

 * The correct bitmasks for the input and output value are
   PAD_CFG0_RX_STATE and PAD_CFG0_TX_STATE.
   Use them instead of the currently used PAD_CFG0_RX_STATE_BIT and
   PAD_CFG0_TX_STATE_BIT.

Signed-off-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-02-04 12:54:55 +08:00
Wolfgang Wallner
28c626804d gpio: intel_gpio: Clear tx state bit when setting output
Add missing 'PAD_CFG0_TX_STATE' to the clear mask for pcr_clrsetbits32().
Otherwise this bit cannot be cleared again after it has been set once.

Signed-off-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-02-04 12:54:55 +08:00
Wolfgang Wallner
b840c395c6 gpio: intel_gpio: Pass pinctrl device to pcr_clrsetbits32()
The function pcr_clrsetbits32() expects a device with a P2SB parent
device. In intel_gpio_direction_output() and intel_gpio_set_value()
the device 'dev' is passed to pcr_clrsetbits32(), which is a
gpio-controller with a device 'pinctrl' as parent. This does not match
the expectations of pcr_clrsetbits32(). But the 'pinctrl' device has a
P2SB as parent.

Pass the 'pinctrl' device instead of the 'dev' device to
pcr_clrsetbits32().

Signed-off-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-02-04 12:54:54 +08:00
Marek Vasut
4dd0593398 watchdog: omap_wdt: Fix WDT coding style
Fix obvious coding style problems, no functional change.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Sam Protsenko <semen.protsenko@linaro.org>
Cc: Suniel Mahesh <sunil.m@techveda.org>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2020-02-04 09:07:25 +05:30
Marek Vasut
11c1af60b5 watchdog: omap_wdt: Fix WDT reloading
The watchdog timer value was never updated in the hardware by this
driver, so the watchdog triggered on some random stale value that
was left in the hardware. The TI SPRUH37C says, quote:

  20.4.3.9 Modifying Timer Count/Load Values and Prescaler Setting
  ...
  After a write access, the load register value and prescaler ratio
  registers are updated immediately, but new values are considered
  only after the next consecutive counter overflow or after a new
  trigger command (the WDT_WTGR register).

This means at least one trigger must happen. The driver probably
depended on someone calling it's .reset() callback, however that
is not guaranteed e.g. if the WDT operates without servicing.

Add this missing trigger.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Sam Protsenko <semen.protsenko@linaro.org>
Cc: Suniel Mahesh <sunil.m@techveda.org>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2020-02-04 09:07:24 +05:30
Marek Vasut
8a9ec4dd5f watchdog: omap_wdt: Fix WDT timeout configuration
The timeout parameter of omap3_wdt_start() is in miliseconds, while
GET_WLDR_VAL() expects parameter in seconds. Fix this so the WDT
driver is actually usable.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Sam Protsenko <semen.protsenko@linaro.org>
Cc: Suniel Mahesh <sunil.m@techveda.org>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2020-02-04 09:07:24 +05:30
Vignesh Raghavendra
25216d68fa gpio: da8xx_gpio: Add "ti,keystone-gpio" compatible
Add "ti,keystone-gpio" compatible so as be able to use Linux DT files as
is.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2020-02-04 09:07:24 +05:30
Vignesh Raghavendra
94f992d57a gpio: da8xx_gpio: Fix compiler warning
Fix below compiler warning for 64bit builds

drivers/gpio/da8xx_gpio.c: In function ‘davinci_get_gpio_bank’:
drivers/gpio/da8xx_gpio.c:446:9: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
  return (struct davinci_gpio *)addr;

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2020-02-04 09:07:24 +05:30
Vignesh Raghavendra
dd6638a018 gpio: pca953x_gpio: Add support for 24 bit IO expander
J721e EVM has a TCA6424 IO expander that has 24 GPIOs. Add support for
the same

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2020-02-04 09:07:24 +05:30
Wolfgang Wallner
142c9751a6 x86: Move itss.h from Apollo Lake to the generic x86 include directory
The code in this file is not specific to Apollo Lake. According to
coreboot sources (where this code comes from), it is common to at least:
  * Apollo Lake
  * Cannon Lake
  * Ice Lake
  * Skylake

Signed-off-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-02-04 01:19:28 +08:00
Wolfgang Wallner
5e579cc004 spi: ich: Drop while loop in hardware sequencing erase case
When ich_spi_exec_op_hwseq() is called to erase a 4k block
(opcode = SPINOR_OP_BE_4K), it expects to find a length value in
op->data.nbytes, but that value is always 0. As a result, the while loop
is never executed and no erase is carried out.

Fix this by dropping the loop code entirely, only keeping the relevant
parts of the loop body.

See http://patchwork.ozlabs.org/patch/1222779/ for more detailed
background information and discussion.

Signed-off-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2020-02-04 01:19:28 +08:00
Simon Glass
44482e8a2a x86: serial: Add a coreboot serial driver
Coreboot can provide information about the serial device in use on a
platform. Add a driver that uses this information to produce a working
UART.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-02-04 01:19:25 +08:00
Simon Glass
62cbde4c4e serial: ns16550: Support run-time configuration
At present this driver uses an assortment of CONFIG options to control
how it accesses the hardware. This is painful for platforms that are
supposed to be controlled by a device tree or a previous-stage bootloader.

Add a new CONFIG option to enable fully dynamic configuration. This
controls register spacing, size, offset and endianness.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Aiden Park <aiden.park@intel.com>
Tested-by: Aiden Park <aiden.park@intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: squashed in http://patchwork.ozlabs.org/patch/1232929/]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2020-02-04 01:19:13 +08:00
Marek Vasut
8941f8414d watchdog: designware: Migrate CONFIG_DESIGNWARE_WATCHDOG to Kconfig
Migrate CONFIG_DESIGNWARE_WATCHDOG to Kconfig and update the headers
accordingly, no functional change. The S10 enables the WDT only in
SPL, but does not enable it in U-Boot itself, hence disable it in
the config again.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <chin.liang.see@intel.com>
Cc: Dalon Westergreen <dwesterg@gmail.com>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Jagan Teki <jagan@amarulasolutions.com>
Cc: Ley Foon Tan <ley.foon.tan@intel.com>
Cc: Philipp Tomisch <philipp.tomisch@theobroma-systems.com>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Cc: Tien Fong Chee <tien.fong.chee@intel.com>
2020-02-03 09:26:14 +01:00
Ley Foon Tan
9e6082198a reset: socfpga: Poll for reset status after deassert reset
In Cyclone 5 SoC platform, the first USB probing is failed but second
probing is success. DWC2 USB driver read gsnpsid register right after
de-assert reset, but controller is not ready yet and it returns gsnpsid 0.
Polling reset status after de-assert reset to solve the issue.

Retry with this fix more than 10 times without issue.

Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
2020-02-03 09:26:14 +01:00
Tom Rini
31a790bee9 Merge branch 'master' of git://git.denx.de/u-boot-usb
- DFU and Cadence USB 3 fixes
2020-02-02 15:26:53 -05:00
Guillermo Rodríguez
13cb7cc9e8 dfu: Add option to skip empty pages when flashing UBI images to NAND
Add a new option to enable the DROP_FFS flag when flashing UBI images to
NAND in order to drop trailing all-0xff pages.

This is similar to the existing FASTBOOT_FLASH_NAND_TRIMFFS option.

Signed-off-by: Guillermo Rodriguez <guille.rodriguez@gmail.com>
Cc: Lukasz Majewski <lukma@denx.de>
2020-02-02 18:19:52 +01:00
Vignesh Raghavendra
bf16a7be90 usb: cdns3: ep0: Invalidate cache before reading Setup Packet
Invalidate dcache line before accessing Setup Packet contents. Otherwise
driver will see stale content on non coherent architecture.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
2020-02-02 18:19:52 +01:00
Tom Rini
427da6f028 Merge tag 'u-boot-rockchip-20200130' of https://gitlab.denx.de/u-boot/custodians/u-boot-rockchip
- Support redundant boot for rk3399
- Support binman for rockchip platform
- Update ram driver and add ddr4 support for rk3328
2020-02-01 15:31:04 -05:00
Tom Rini
80e99adbe4 UniPhier SoC updates for v2020.04 (2nd)
Denali NAND driver changes:
  - Set up more registers in denali-spl for SOCFPGA
  - Make clocks optional
  - Do not assert reset signals in the remove hook
  - associate SPARE_AREA_SKIP_BYTES with DT compatible
  - switch to UCLASS_MTD
 
 UniPhier platform changes:
  - fix a bug in dram_init()
  - specify loadaddr for "source" command
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Merge tag 'uniphier-v2020.04-2' of https://gitlab.denx.de/u-boot/custodians/u-boot-uniphier

UniPhier SoC updates for v2020.04 (2nd)

Denali NAND driver changes:
 - Set up more registers in denali-spl for SOCFPGA
 - Make clocks optional
 - Do not assert reset signals in the remove hook
 - associate SPARE_AREA_SKIP_BYTES with DT compatible
 - switch to UCLASS_MTD

UniPhier platform changes:
 - fix a bug in dram_init()
 - specify loadaddr for "source" command
2020-01-31 13:26:28 -05:00
Masahiro Yamada
407b01b3b3 mtd: rawnand: denali_dt: use UCLASS_MTD instead of UCLASS_MISC
UCLASS_MTD is a better fit for NAND drivers.

Make NAND_DENALI_DT depend on DM_MTD, which is needed to compile
drivers/mtd/mtd-uclass.c

Also, make ARCH_UNIPHIER select DM_MTD because all the defconfig
of this platform enables NAND_DENALI_DT.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
2020-02-01 01:14:32 +09:00
Masahiro Yamada
80924cc164 mtd: rawnand: denali: set SPARE_AREA_SKIP_BYTES based on DT compatible
Currently, the denali NAND driver in U-Boot configures the
SPARE_AREA_SKIP_BYTES based on the CONFIG option.

Recently, Linux kernel merged a patch that associates the proper
value for this register with the DT compatible string.

Do likewise in U-Boot too.

The denali_spl.c still uses CONFIG_NAND_DENALI_SPARE_AREA_SKIP_BYTES.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2020-02-01 01:14:32 +09:00
Masahiro Yamada
21d4a3ca54 mtd: rawnand: denali_dt: insert udelay() after reset deassert
When the reset signal is de-asserted, the HW-controlled bootstrap
starts running unless it is disabled in the SoC integration.
It issues some commands to detect a NAND chip, and sets up registers
automatically. Until this process finishes, software should avoid
any register access.

Without this delay function, some of UniPhier boards hangs up while
executing nand_scan_ident(). (denali_read_byte() is blocked)

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2020-02-01 01:14:32 +09:00
Marek Vasut
9925df051a mtd: rawnand: denali: Do not reset the block before booting the kernel
The Denali NAND driver in mainline Linux currently cannot deassert the
reset. The upcoming Linux 5.6 will support the reset controlling, and
also set up SPARE_AREA_SKIP_BYTES correctly. So, the Denali driver in
the future kernel will work without relying on any bootloader or firmware.
However, we still need to take care of stable kernel versions for a while.
U-boot should not assert the reset of this controller.

Fixes: ed784ac382 ("mtd: rawnand: denali: add reset handling")
Signed-off-by: Marek Vasut <marex@denx.de>
[yamada.masahiro: reword the commit description]
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2020-02-01 01:14:32 +09:00
Masahiro Yamada
11bcc5841a mtd: rawnand: denali_dt: make the core clock optional
The "nand_x" and "ecc" clocks are currently optional. Make the core
clock optional in the same way. This will allow platforms with no clock
driver support to use this driver.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Marek Vasut <marex@denx.de> # On SoCFPGA Arria V
2020-02-01 01:14:32 +09:00
Marek Vasut
33672c970b mtd: rawnand: denali-spl: Add missing hardware init on SoCFPGA
On Altera SoCFPGA, upon either cold-boot or power-on reset, the
Denali NAND IP is initialized by the BootROM ; upon warm-reset,
the Denali NAND IP is NOT initialized by BootROM. In fact, upon
warm-reset, the SoCFPGA BootROM checks whether the SPL image in
on-chip RAM is valid and if so, completely skips re-loading the
SPL from the boot media.

This does sometimes lead to problems where the software left
the boot media in inconsistent state before warm-reset, and
because the BootROM does not reset the boot media, the boot
media is left in this inconsistent state, often until another
component attempts to access the boot media and fails with an
difficult to debug failure. To mitigate this problem, the SPL
on Altera SoCFPGA always resets all the IPs on the SoC early
on boot.

This results in a couple of register values, pre-programmed by
the BootROM, to be lost during this reset. To restore correct
operation of the IP on SoCFPGA, these values must be programmed
back into the controller by the driver. Note that on other SoCs
which do not use the HW-controlled bootstrap, more registers
may have to be programmed.

This also aligns the SPL behavior with the full Denali NAND
driver, which sets these values in denali_hw_init().

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2020-02-01 01:14:32 +09:00
Flavio Suligoi
dad9af590a net: fix typo
Signed-off-by: Flavio Suligoi <f.suligoi@asem.it>
2020-01-30 13:30:35 -05:00
Kever Yang
31531f6fdb ram: rk3328: only do data traning for cs0
No need to do twice data training for rk3328 ddr sdram, we re-use the
setting for both channel. And adjust the sdram_init properly for correct
init flow.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: YouMin Chen <cym@rock-chips.com>
2020-01-30 11:44:01 +08:00
Jagan Teki
b52a199e32 arm: rockchip: Add common cru.h
Few of the rockchip family SoC atleast rk3288,
rk3399 are sharing some cru register bits so
adding common code between these SoC families
would require to include both cru include files
that indeed resulting function declarations error.

So, create a common cru include as cru.h then
include the rk3399 arch cru include file and move
the common cru register bit definitions into it.

The rest of rockchip cru files will add it in future.

Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2020-01-30 11:44:01 +08:00
Thomas Hebb
95052b4b40 ram: rk3399: don't assume phy_io_config() uses real regs
In the RK3399 DRAM driver, the function set_ds_odt() supports operating
in two different modes, selected by the ctl_phy_reg argument: when true,
the function reads and writes directly from the DRAM registers, accessed
through "chan->pctl->denali_*"; when false, the function reads and
writes from an array, accessed through "params->pctl_regs.denali_*",
which is written to DRAM registers at a later time.

However, phy_config_io(), which is called by set_ds_odt() to do a subset
of its register operations, operates directly on DRAM registers at all
times. This means that it reads incorrect values (and writes new values
prematurely) when ctl_phy_reg in set_ds_odt() is false. Fix this by
passing in the address of the registers to work with.

This prevents an "Invalid DRV value" error in the SPL debug log and
(presumably) results in a more correct end state. See the following logs
from a RK3399 NanoPi M4 board (4GB LPDDR3):

Before:

  sdram_init() Starting SDRAM initialization...
  phy_io_config() Invalid DRV value.
  phy_io_config() Invalid DRV value.
  sdram_init() sdram_init: data trained for rank 2, ch 0
  phy_io_config() Invalid DRV value.
  phy_io_config() Invalid DRV value.
  sdram_init() sdram_init: data trained for rank 2, ch 1
  Channel 0: LPDDR3, 933MHz
  BW=32 Col=10 Bk=8 CS0 Row=15 CS1 Row=15 CS=2 Die BW=16 Size=2048MB
  Channel 1: LPDDR3, 933MHz
  BW=32 Col=10 Bk=8 CS0 Row=15 CS1 Row=15 CS=2 Die BW=16 Size=2048MB
  256B stride
  256B stride
  sdram_init() Finish SDRAM initialization...

After:

  sdram_init() Starting SDRAM initialization...
  sdram_init() sdram_init: data trained for rank 2, ch 0
  sdram_init() sdram_init: data trained for rank 2, ch 1
  Channel 0: LPDDR3, 933MHz
  BW=32 Col=10 Bk=8 CS0 Row=15 CS1 Row=15 CS=2 Die BW=16 Size=2048MB
  Channel 1: LPDDR3, 933MHz
  BW=32 Col=10 Bk=8 CS0 Row=15 CS1 Row=15 CS=2 Die BW=16 Size=2048MB
  256B stride
  256B stride
  sdram_init() Finish SDRAM initialization...

Signed-off-by: Thomas Hebb <tommyhebb@gmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2020-01-30 11:44:01 +08:00
Amit Singh Tomar
d53e3fa385 net: Add support for Broadcom GENETv5 Ethernet controller
The Broadcom GENET Ethernet MACs are used in several MIPS based SoCs
and in the Broadcom 2711/2838 SoC used on the Raspberry Pi 4.
There is no publicly available documentation, so this driver is based
on the Linux driver. Compared to that the queue management is
drastically simplified, also we only support version 5 of the IP and
RGMII connections between MAC and PHY, as used on the RPi4.

Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
[Andre: heavy cleanup and a few fixes]
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Tested-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
2020-01-29 18:30:33 +01:00
Marek Szyprowski
c4d08cb9b1 usb: dwc2_udc_otg: add bcm2835 SoC (Raspberry Pi4) support
Broadcom 2835 SoC requires special conversion of physical memory addresses
for DMA purpose, so add needed wrappers to dwc2_udc_otg driver. Also extend
the list of compatible devices with 'brcm,bcm2835-usb' entry. This allows
to use USB gadget drivers (i.e. DFU) on Raspberry Pi4 boards.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
2020-01-29 18:30:33 +01:00
Marek Szyprowski
c2a1e3dbf8 dfu: mmc: remove file size limit for io operations
Add support for operations on files larger than
CONFIG_SYS_DFU_MAX_FILE_SIZE. The buffered io mechanism is still used for
aggregating io requests, so for files up to CONFIG_SYS_DFU_MAX_FILE_SIZE
nothing is changed and they will be handled in a single filesystem call.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Lukasz Majewski <lukma@denx.de>
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
2020-01-29 18:30:33 +01:00
Marek Szyprowski
774f8b00b6 dfu: mmc: rearrange the code
Rename functions for bufferred file io operations to make them easier to
understand. Also add missing file offset argument to them (currently
unused). All this is a preparation to remove predefined file size limit
(CONFIG_SYS_DFU_MAX_FILE_SIZE) for DFU read/write operations.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Lukasz Majewski <lukma@denx.de>
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
2020-01-29 18:30:33 +01:00
Tom Rini
e7ab1cb3f0 Merge tag 'for-v2020.04' of https://gitlab.denx.de/u-boot/custodians/u-boot-i2c
i2c changes for 2020.04
- updates the Designware I2C driver
  - get timings from device tree
  - handle units in nanoseconds
  - make sure that the requested bus speed is not exceeded
  - few smaller clean-ups
- adds enums for i2c speed and update drivers which use them
- global_data: remove unused mxc_i2c specific field
2020-01-29 09:34:13 -05:00
Tom Rini
3e12744a90 Merge branch 'master' of https://gitlab.denx.de/u-boot/custodians/u-boot-samsung
- Various exynos fixes
2020-01-28 21:10:32 -05:00
Tom Rini
86e42b3629 Merge branch 'master' of https://gitlab.denx.de/u-boot/custodians/u-boot-spi
- spi cs accessing slaves (Bin Meng)
- spi prevent overriding established bus (Marcin Wojtas)
- support speed in spi command (Marek Vasut)
- add W25N01GV spinand (Robert Marko)
- move cadence_qspi to use spi-mem (Vignesh Raghavendra)
- add octal mode (Vignesh Raghavendra)
2020-01-27 19:57:13 -05:00
Martin Fuzzey
7ae22d8479 power: regulator: add driver for Dialog DA9063 PMIC
Add a driver for the regulators in the the DA9063 PMIC.

Robert Beckett: move regulator modes to header so board code can set
modes. Correct mode mask used in ldo_set_mode.
Add an option CONFIG_SPL_DM_REGULATOR_DA9063.

Signed-off-by: Martin Fuzzey <martin.fuzzey@flowbird.group>
Signed-off-by: Robert Beckett <bob.beckett@collabora.com>
2020-01-27 19:54:20 -05:00
Martin Fuzzey
483880c490 power: pmic: add driver for Dialog DA9063 PMIC
This adds the basic register access operations and child regulator
binding (if a regulator driver exists).

Robert Beckett: simplify accesses by using bottom bit of address as
offset overflow. This avoids the need to track which page we are on.
Add an option CONFIG_SPL_DM_PMIC_DA9063.

Signed-off-by: Martin Fuzzey <martin.fuzzey@flowbird.group>
Signed-off-by: Robert Beckett <bob.beckett@collabora.com>
2020-01-27 19:54:20 -05:00
Ian Ray
e1d26a7642 rtc: s35392a: encode command correctly
The 3-bit "command", or register, is encoded within the device address.
Configure the device accordingly, and pass command in DM I2C read/write
calls correctly.

Signed-off-by: Ian Ray <ian.ray@ge.com>
Signed-off-by: Robert Beckett <bob.beckett@collabora.com>
2020-01-27 19:54:20 -05:00
Vignesh Raghavendra
daa9405d7c spi: cadence-qspi: Add compatible for TI AM654
TI's AM654 SoC has a Cadence OSPI IP. Add a new compatible string for
the same.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2020-01-27 22:27:22 +05:30
Vignesh Raghavendra
0f247848b6 spi: cadence-qspi: Add support for Cadence Octal SPI controller
Cadence OSPI is similar to QSPI IP except that it supports Octal IO
(8 IO lines) flashes. Add support for Cadence OSPI IP with existing
driver using new compatible

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2020-01-27 22:27:22 +05:30
Vignesh Raghavendra
658df8bd94 mtd: spi-nor-core: Add octal mode support
Add support for Octal flash devices. Octal flash devices use 8 IO lines
for data transfer. Currently only 1-1-8 Octal Read mode is supported.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2020-01-27 22:27:22 +05:30
Vignesh Raghavendra
ffab212123 spi: cadence-qspi: Add direct mode support
Add support for Direct Access Controller mode of Cadence QSPI. This
allows MMIO access to SPI NOR flash providing better read performance.
Direct mode is only exercised if AHB window size is greater than 8MB.
Support for flash address remapping is also not supported at the moment
and can be added in future.

For better performance, driver uses DMA to copy data from flash in
direct mode using dma_memcpy().

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Tested-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Acked-by: Jagan Teki <jagan@amarulasolutions.com>
2020-01-27 22:27:22 +05:30
Vignesh Raghavendra
d640772021 spi: cadence_qspi: Move to spi-mem framework
Current Cadence QSPI driver has few limitations. It assumes all read
operations to be in Quad mode and thus does not support SFDP parsing.
Also, adding support for new mode such as Octal mode would not be
possible with current configuration. Therefore move the driver over to spi-mem
framework. This has added advantage that driver can be used to support
SPI NAND memories too.
Hence, move driver over to new spi-mem APIs.

Please note that this gets rid of mode bit setting done when
CONFIG_SPL_SPI_XIP is defined as there does not seem to be any user to
that config option.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Tested-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Acked-by: Jagan Teki <jagan@amarulasolutions.com>
2020-01-27 22:27:22 +05:30