Commit Graph

21702 Commits

Author SHA1 Message Date
Simon Glass
b45203004e log: Add a flag to enable log drivers
At present there is no way to disable a log driver. But the syslog driver
causes (attempted) network traffic in sandbox every time a log message
is printed, which is often.

Add a flag to enable a log driver. Adjust struct log_device to use a short
for next_filter_num so that no more memory is used for devices. Also fix
a missing line in the struct log_driver comment while here.

To maintain compatibility, enable it for all drivers for now.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-10-10 16:50:11 -04:00
Simon Glass
52d3df7fef log: Allow LOG_DEBUG to always enable log output
At present if CONFIG_LOG enabled, putting LOG_DEBUG at the top of a file
(before log.h inclusion) causes _log() to be executed for every log()
call, regardless of the build- or run-time logging level.

However there is no guarantee that the log record will actually be
displayed. If the current log level is lower than LOGL_DEBUG then it will
not be.

Add a way to signal that the log record should always be displayed and
update log_passes_filters() to handle this.

With the new behaviour, log_debug() will always log if LOG_DEBUG is
enabled.

Move log_test_syslog_nodebug() into its own file since it cannot be made
to work where it is, with LOG_DEBUG defined.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-10-10 16:49:58 -04:00
Andre Przywara
3d8d9186c3 qemu-arm: Remove need to specify flash banks
Currently we hard-code the number and initial addresses of QEMU's flash
banks, even though our code is perfectly able to gather the same
information from the DTB provided by QEMU.
This is especially annoying, since we have two slightly different
U-Boot configurations ("bare-metal" vs. loaded via Arm Trusted
Firmware), which need to be selected at build time.

Drop the two hard coded alternatives, and use
CONFIG_SYS_MAX_FLASH_BANKS_DETECT instead, which relies on the DTB to
figure out the actual flash configuration at runtime.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2020-10-08 11:42:36 -04:00
Sean Anderson
7224d5ccf8 pinctrl: Add support for Kendryte K210 FPIOA
The Fully-Programmable Input/Output Array (FPIOA) device controls pin
multiplexing on the K210. The FPIOA can remap any supported function to any
multifunctional IO pin. It can also perform basic GPIO functions, such as
reading the current value of a pin. However, GPIO functionality remains
largely unimplemented (in favor of the dedicated GPIO peripherals).

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-10-08 11:42:36 -04:00
Sean Anderson
7f0f1806e3 test: pinmux: Add test for pin muxing
This extends the pinctrl-sandbox driver to support pin muxing, and adds a
test for that behaviour. The test is done in C and not python (like the
existing tests for the pinctrl uclass) because it needs to call
pinctrl_select_state.  Another option could be to add a command that
invokes pinctrl_select_state and then test everything in
test/py/tests/test_pinmux.py.

The pinctrl-sandbox driver now mimics the way that many pinmux devices
work.  There are two groups of pins which are muxed together, as well as
four pins which are muxed individually. I have tried to test all normal
paths. However, very few error cases are explicitly checked for.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-10-08 11:42:36 -04:00
Sean Anderson
5eee93e5b1 pinctrl: Reformat documentation in dm/pinctrl.h
This normalizes the documentation to conform to kernel-doc style [1]. It
also moves the documentation for pinctrl_ops inline, and adds argument and
return-value documentation. I have kept the usual function style for these
comments. I could not find any existing examples of function documentation
inside structs.

[1] https://www.kernel.org/doc/html/latest/doc-guide/kernel-doc.html

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-10-08 11:42:36 -04:00
Sean Anderson
9c08fbfc95 pinctrl: Add pinmux property support to pinctrl-generic
The pinmux property allows for smaller and more compact device trees,
especially when there are many pins which need to be assigned individually.
Instead of specifying an array of strings to be parsed as pins and a
function property, the pinmux property contains an array of integers
representing pinmux groups. A pinmux group consists of the pin identifier
and mux settings represented as a single integer or an array of integers.
Each individual pin controller driver specifies the exact format of a
pinmux group. As specified in the Linux documentation, a pinmux group may
be multiple integers long. However, no existing drivers use multi-integer
pinmux groups, so I have chosen to omit this feature. This makes the
implementation easier, since there is no need to allocate a buffer to do
endian conversions.

Support for the pinmux property is done differently than in Linux.  As far
as I can tell, inversion of control is used when implementing support for
the pins and groups properties to avoid allocating. This results in some
duplication of effort; every property in a config node is parsed once for
each pin in that node. This is not such an overhead with pins and groups
properties, since having multiple pins in one config node does not occur
especially often. However, the semantics of the pinmux property make such a
configuration much more appealing. A future patch could parse all config
properties at once and store them in an array. This would make it easier to
create drivers which do not function solely as callbacks from
pinctrl-generic.

This commit increases the size of the sandbox build by approximately 48
bytes.  However, it also decreases the size of the K210 device tree by 2
KiB from the previous version of this series.

The documentation has been updated from the last Linux commit before it was
split off into yaml files.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-10-08 11:42:36 -04:00
Tom Rini
1c431f118c - mips: octeon: add support for DDR4 memory controller
- mips: octeon: add support for DWC3 USB
 - mips: octeon: add support for booting Linux
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Merge tag 'mips-pull-2020-10-07' of https://gitlab.denx.de/u-boot/custodians/u-boot-mips

- mips: octeon: add support for DDR4 memory controller
- mips: octeon: add support for DWC3 USB
- mips: octeon: add support for booting Linux
2020-10-07 17:25:25 -04:00
Stefan Roese
1471560b2c mips: octeon: octeon_common.h: Increase CONFIG_SYS_BOOTM_LEN
Increase CONFIG_SYS_BOOTM_LEN to 64MiB for Linux kernel booting.

Signed-off-by: Stefan Roese <sr@denx.de>
2020-10-07 20:25:58 +02:00
Stefan Roese
63051d62b8 mips: octeon: octeon_ebb7304: Add DDR4 support
This patch adds the board specific configuration (struct) for the
Octeon 3 EBB7304 EVK. This struct is ported from the 2013er Cavium /
Marvell U-Boot repository. Also, the Octeon RAM driver is enabled in
the board defconfig for its usage.

Tested with one and two DIMMs on the EBB7304 EVK (8 & 16 GiB).

Signed-off-by: Stefan Roese <sr@denx.de>
2020-10-07 20:25:57 +02:00
Tom Rini
42378e3cd2 bloblist enhancement for alignment
Update ofnode/dev_read phandle function
 sandbox keyboard enhancements and fixes
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Merge tag 'dm-pull-6oct20' of git://git.denx.de/u-boot-dm

bloblist enhancement for alignment
Update ofnode/dev_read phandle function
sandbox keyboard enhancements and fixes
2020-10-06 13:59:01 -04:00
Patrick Delaunay
89f68302ca dm: add cells_count parameter in *_count_phandle_with_args
The cell_count argument is required when cells_name is NULL.

This patch adds this parameter in live tree API
- of_count_phandle_with_args
- ofnode_count_phandle_with_args
- dev_count_phandle_with_args

This parameter solves issue when these API is used to count
the number of element of a cell without cell name. This parameter
allow to force the size cell.

For example:
  count = dev_count_phandle_with_args(dev, "array", NULL, 3);

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-10-06 09:07:54 -06:00
Patrick Delaunay
6d9949fe86 dm: update test on of_offset in ofnode_valid
Update the test for node.of_offset because an invalid offset is not
always set to -1 because the return value of the libfdt functions are:
+ an error with a value < 0
+ a valid offset with value >=0

For example, in ofnode_get_by_phandle() function, we have:
node.of_offset = fdt_node_offset_by_phandle(gd->fdt_blob, phandle);
and this function can return -FDT_ERR_BADPHANDLE (-6).

Without this patch, the added test dm_test_ofnode_get_by_phandle failed.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-10-06 09:07:54 -06:00
Stefan Roese
45dbe75da6 dm: ofnode: Fix compile breakage with OF_CHECKS enabled
Include missing log.h and change _ofnode_to_np() to ofnode_to_np() so
that compiling with OF_CHECKS enabled does not break.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-10-06 09:07:54 -06:00
Simon Glass
e9b6b2c77d bloblist: Fix up a few comments
Adjust a few comments to make the meaning clearer.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-10-06 09:07:54 -06:00
Simon Glass
4c1497e776 bloblist: Allow custom alignment for blobs
Some blobs need a larger alignment than the default. For example, ACPI
tables often start at a 4KB boundary. Add support for this.

Update the size of the test blob to allow these larger records.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-10-06 09:07:54 -06:00
Simon Glass
cdd4e30dfc bloblist: Compare addresses rather than pointers in tests
When running these tests on sandbox any failures result in very large or
long pointer values which are a pain to work with. Map them to an address
so it is easier to diagnose failures.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-10-06 09:07:54 -06:00
Simon Glass
4aed227623 bloblist: Add a command
It is helpful to be able to see basic statistics about the bloblist and
also to list its contents. Add a 'bloblist' command to handle this.

Put the display functions in the bloblist modules rather than in the
command code itself. That allows showing a list from SPL, where commands
are not available.

Also make bloblist_first/next_blob() static as they are not used outside
this file.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-10-06 09:07:54 -06:00
Tom Rini
5dcf7cc590 Pull request for UEFI sub-system for efi-2021-01-rc1
The following bugs in the UEFI system are resolved:
 
 * illegal free in EFI_LOAD_FILE2_PROTOCOL implementation
 * incorrect documentation of EFI_LOAD_FILE2_PROTOCOL implementation
 * output of CRC32 as decimal instead hexadecimal in unit test
 * use EfiReservedMemoryType for no-map reserved memory
 * avoid unnecessary resets in UEFI unit tests
 * call EFI bootmgr even without having /EFI/boot
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Merge tag 'efi-2021-01-rc1' of https://gitlab.denx.de/u-boot/custodians/u-boot-efi

Pull request for UEFI sub-system for efi-2021-01-rc1

The following bugs in the UEFI system are resolved:

* illegal free in EFI_LOAD_FILE2_PROTOCOL implementation
* incorrect documentation of EFI_LOAD_FILE2_PROTOCOL implementation
* output of CRC32 as decimal instead hexadecimal in unit test
* use EfiReservedMemoryType for no-map reserved memory
* avoid unnecessary resets in UEFI unit tests
* call EFI bootmgr even without having /EFI/boot
2020-10-06 08:36:38 -04:00
Tom Rini
987ab49366 - generate unique mac address from SoC serial on S400 board
- Add USB support for GXL and AXG SoCs
 - Update Gadget code to use the new GXL and AXG USB glue driver
 - Add a VIM3 board support to add dynamic PCIe enable in OS DT
 - Fix AXG pinmux with requesting GPIOs
 - Add missing GPIOA_18 for AXG pinctrl
 - Add Amlogic PWM driver
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Merge tag 'u-boot-amlogic-20201005' of https://gitlab.denx.de/u-boot/custodians/u-boot-amlogic

- generate unique mac address from SoC serial on S400 board
- Add USB support for GXL and AXG SoCs
- Update Gadget code to use the new GXL and AXG USB glue driver
- Add a VIM3 board support to add dynamic PCIe enable in OS DT
- Fix AXG pinmux with requesting GPIOs
- Add missing GPIOA_18 for AXG pinctrl
- Add Amlogic PWM driver
2020-10-06 08:36:10 -04:00
Michael Walle
f3866909e3 distro_bootcmd: call EFI bootmgr even without having /EFI/boot
Currently, the EFI bootmgr is only called if there is a EFI binary
inside the path for removable media is found, i.e. /EFI/boot/. This
doesn't make sense. It is the duty of the bootmgr to find out the
path and name of the EFI binary to boot. It should be called even
if there is no /EFI/boot directory.

Thus, call the bootmgr before we try to boot the EFI binary inside
the removable media path.

Also remove the ${fdtcontroladdr} parameter because the fallback is
handled in cmd/bootefi.c and that already takes care of correct settings
if the board has ACPI and thus no device tree at all.

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2020-10-06 07:43:56 +02:00
Tom Rini
b7e7831e5d Merge branch 'next'
Bring in the assorted changes that have been staged in the 'next' branch
prior to release.

Signed-off-by: Tom Rini <trini@konsulko.com>
2020-10-05 14:10:59 -04:00
Neil Armstrong
1110e49e34 ARM: dts: sync amlogic G12A/SM1 DT from Linux 5.9-rc1
This imports the G12A & SM1 SoC and boards DT changes from the Linux
commit 9123e3a74ec7 ("Linux 5.9-rc1").

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Tested-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2020-10-05 17:59:45 +02:00
Neil Armstrong
4e7b0a3f2a ARM: dts: sync amlogic AXG/GXL/GXM DT from Linux 5.8-rc1
This imports the AXG, GXL & GXM SoC and boards DT changes from the Linux
commit b3a9e3b9622a ("Linux 5.8-rc1").

This change also removes GXL & GXM u-boot.dtsi hacks for USB gadget.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2020-10-05 17:59:45 +02:00
Tom Rini
caebff09ef First set of u-boot-atmel features for 2021.01 cycle
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Merge tag 'u-boot-atmel-2021.01-a' of https://gitlab.denx.de/u-boot/custodians/u-boot-atmel into next

First set of u-boot-atmel features for 2021.01 cycle:

This feature set includes a new CPU driver for at91 family, new driver
for PIT64B hardware timer, support for new at91 family SoC named sama7g5
which adds: clock support, including conversion of the clock tree to
CCF; SoC support in mach-at91, pinctrl and mmc drivers update.  The
feature set also includes updates for mmc driver and some other minor
fixes and features regarding building without the old Atmel PIT and the
possibility to read a secondary MAC address from a second i2c EEPROM.
2020-10-05 10:54:27 -04:00
Soeren Moch
0f3e2942c9 board: tbs2910: Use recommended distroboot addresses
According to doc/README.distro fdt_addr must not be set when DTB is not
available from hardware. So remove this entry.

Use address 32MB above the start of DRAM for kernel_addr_r. This way
we likely can avoid the self-relocation of the compressed kernel image
before it decompresses to offset 0x8000 from start of DRAM.

Use address 128MB above the start of DRAM for fdt_addr_r, since this is
the maximum location for the end of the kernel. So we avoid overwriting
the DTB.

Use 512k above that for ramdisk_addr_r. This should be enough for the
DTB, rest of DRAM can be used for initrd.

Place boot script / extlinux.conf at offset 0 / 1MB from start of DRAM.
This space is available for processing in U-Boot.

Signed-off-by: Soeren Moch <smoch@web.de>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2020-10-02 08:42:36 -04:00
Tom Rini
7e373a1a6a Merge branch 'next' of git://git.denx.de/u-boot-usb into next
- Assorted XHCI improvements
2020-10-01 14:52:56 -04:00
Chunfeng Yun
23a54ccfb6 usb: xhci: use macros with parameter to fill ep_info2
Use macros with parameter to fill ep_info2, then some macros
for MASK and SHIFT can be removed

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-10-01 19:43:05 +02:00
Chunfeng Yun
bf58cf9ab1 usb: xhci: convert to TRB_TX_TYPE()
Use TRB_TX_TYPE() instead of (TRB_DATA_OUT/IN << TRB_TX_TYPE_SHIFT)

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-10-01 19:43:05 +02:00
Chunfeng Yun
4312638eaf usb: xhci: convert to TRB_LEN() and TRB_INTR_TARGET()
For normal TRB fields:
use TRB_LEN(x) instead of ((x) & TRB_LEN_MASK);
and use TRB_INTR_TARGET(x) instead of
(((x) & TRB_INTR_TARGET_MASK) << TRB_INTR_TARGET_SHIFT)

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-10-01 19:43:05 +02:00
Chunfeng Yun
a826d76f2b usb: xhci: convert to TRB_TYPE()
Use TRB_TYPE(p) instead of ((p) << TRB_TYPE_SHIFT)

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-10-01 19:43:05 +02:00
Chunfeng Yun
86d1fa17fb usb: xhci: convert to HCS_MAX_PORTS()
Use HCS_MAX_PORTS(p) instead of
((p & HCS_MAX_PORTS_MASK) >> HCS_MAX_PORTS_SHIFT)

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-10-01 19:43:05 +02:00
Chunfeng Yun
740820519c usb: xhci: add quirks flag to support MediaTek xHCI 0.96
There some vendor quirks for MTK xHCI 0.96 host controller:
1. It defines some extra SW scheduling parameters for HW
   to minimize the scheduling effort for synchronous and
   interrupt endpoints. The parameters are put into reserved
   DWs of slot context and endpoint context.
2. Its TDS in  Normal TRB defines a number of packets that
   remains to be transferred for a TD after processing all
   Max packets in all previous TRBs.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Tested-by: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-10-01 19:43:05 +02:00
Chunfeng Yun
e3ea481bee usb: xhci: create one unified function to calculate TRB TD remainder
xhci versions 1.0 and later report the untransferred data remaining in a
TD a bit differently than older hosts.

We used to have separate functions for these, and needed to check host
version before calling the right function.

Now Mediatek host has an additional quirk on how it uses the TD Size
field for remaining data. To prevent yet another function for calculating
remainder we instead want to make one quirk friendly unified function.

Porting from the Linux:
c840d6ce772d("xhci: create one unified function to calculate TRB TD remainder.")
124c39371114("xhci: use boolean to indicate last trb in td remainder calculation")

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-10-01 19:43:05 +02:00
Chunfeng Yun
719d7d8df4 usb: xhci: add a member hci_version in xhci_ctrl struct
Add a member to save xHCI version, it's used some times.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-10-01 19:43:05 +02:00
Tom Rini
b084d8596d Merge branch 'next' of git://git.denx.de/u-boot-sh into next 2020-10-01 10:29:39 -04:00
Tom Rini
26acc6395f Merge branch '2020-09-30-assorted-network-improvements' into next
- Generic UDP framework
- TFTP fixes
- dwc_eth_qos, smc911x, smc911x and mscc phy fixes
2020-10-01 09:46:10 -04:00
Philippe Reynes
912ece4c3d sntp: use udp framework
This commits update the support of sntp to use
the framework udp. This change allows to remove
all the reference to sntp in the main network
file net/net.c.

Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-09-30 16:55:03 -04:00
Philippe Reynes
b43ea1bf18 net: add a generic udp protocol
This commit adds a generic udp protocol framework in the
network loop. So protocol based on udp may be implemented
without modifying the network loop (for example custom
wait magic packet).

Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-09-30 16:55:03 -04:00
Etienne Carriere
34d76fefb2 reset: add reset controller driver for SCMI agents
This change introduces a reset controller driver for SCMI agent devices.
When SCMI agent and SCMI reset domain drivers are enabled, SCMI agent
binds a reset controller device for each SCMI reset domain protocol
devices enabled in the FDT.

SCMI reset driver is embedded upon CONFIG_RESET_SCMI=y. If enabled,
CONFIG_SCMI_AGENT is also enabled.

SCMI Reset Domain protocol is defined in the SCMI specification [1].

Links: [1] https://developer.arm.com/architectures/system-architectures/software-standards/scmi
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-09-30 11:55:23 -04:00
Etienne Carriere
6038884483 clk: add clock driver for SCMI agents
This change introduces a clock driver for SCMI agent devices. When
SCMI agent and SCMI clock drivers are enabled, SCMI agent binds a
clock device for each SCMI clock protocol devices enabled in the FDT.

SCMI clock driver is embedded upon CONFIG_CLK_SCMI=y. If enabled,
CONFIG_SCMI_AGENT is also enabled.

SCMI Clock protocol is defined in the SCMI specification [1].

Links: [1] https://developer.arm.com/architectures/system-architectures/software-standards/scmi
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Cc: Lukasz Majewski <lukma@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-09-30 11:55:23 -04:00
Etienne Carriere
358599efd8 firmware: add SCMI agent uclass
This change introduces SCMI agent uclass to interact with a firmware
using the SCMI protocols [1].

SCMI agent uclass currently supports a single method to request
processing of the SCMI message by an identified server. A SCMI message
is made of a byte payload associated to a protocol ID and a message ID,
all defined by the SCMI specification [1]. On return from process_msg()
method, the caller gets the service response.

SCMI agent uclass defines a post bind generic sequence for all devices.
The sequence binds all the SCMI protocols listed in the FDT for that
SCMI agent device. Currently none, but later change will introduce
protocols.

This change implements a simple sandbox device for the SCMI agent uclass.
The sandbox nicely answers SCMI_NOT_SUPPORTED to SCMI messages.
To prepare for further test support, the sandbox exposes a architecture
function for test application to read the sandbox emulated devices state.
Currently supports 2 SCMI agents, identified by an ID in the FDT device
name. The simplistic DM test does nothing yet.

SCMI agent uclass is designed for platforms that embed a SCMI server in
a firmware hosted somewhere, for example in a companion co-processor or
in the secure world of the executing processor. SCMI protocols allow an
SCMI agent to discover and access external resources as clock, reset
controllers and more. SCMI agent and server communicate following the
SCMI specification [1]. This SCMI agent implementation complies with
the DT bindings defined in the Linux kernel source tree regarding
SCMI agent description since v5.8.

Links: [1] https://developer.arm.com/architectures/system-architectures/software-standards/scmi
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-09-30 11:55:23 -04:00
Jean-Jacques Hiblot
1c4db59d9b regmap: Add support for regmap fields
A regmap field is an abstraction available in Linux. It provides to access
bitfields in a regmap without having to worry about shifts and masks.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Pratyush Yadav <p.yadav@ti.com>
2020-09-30 11:55:23 -04:00
Pratyush Yadav
d8babb9598 regmap: Allow devices to specify regmap range start and size in config
Some devices need to calculate the regmap base address at runtime. This
makes it impossible to use device tree to get the regmap base. Instead,
allow devices to specify it in the regmap config. This will create a
regmap with a single range that corresponds to the start and size given
by the driver.

Signed-off-by: Pratyush Yadav <p.yadav@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-09-30 11:55:22 -04:00
Pratyush Yadav
0e01a7c3f4 regmap: Add regmap_init_mem_range()
Right now, the base of a regmap can only be obtained from the device
tree. This makes it impossible for devices which calculate the base at
runtime to use a regmap. An example of such a device is the Cadence
Sierra PHY.

Allow creating a regmap with one range whose start and size can be
specified by the driver based on calculations at runtime.

Signed-off-by: Pratyush Yadav <p.yadav@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-09-30 11:55:22 -04:00
Pratyush Yadav
7aa5ddffe7 regmap: Allow left shifting register offset before access
Drivers can configure it to adjust the final read/write location.

Signed-off-by: Pratyush Yadav <p.yadav@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-09-30 11:55:22 -04:00
Pratyush Yadav
78aaedba9f regmap: Allow specifying read/write width
Right now, regmap_read() and regmap_write() read/write a 32-bit value
only. To write other lengths, regmap_raw_read() and regmap_raw_write()
need to be used.

This means that any driver ported from Linux that relies on
regmap_{read,write}() to know the size already has to be updated at each
callsite. This makes the port harder to maintain.

So, allow specifying the read/write width to make it easier to port the
drivers, since now the only change needed is when initializing the
regmap.

Signed-off-by: Pratyush Yadav <p.yadav@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-09-30 11:55:22 -04:00
Jean-Jacques Hiblot
ffb22f6b84 regmap: Add devm_regmap_init()
Most of new linux drivers are using managed-API to allocate resources. To
ease porting drivers from linux to U-Boot, introduce devm_regmap_init() as
a managed API to get a regmap from the device tree.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Pratyush Yadav <p.yadav@ti.com>
2020-09-30 11:55:22 -04:00
Jean-Jacques Hiblot
d4b722e3a8 drivers: gpio: Add a managed API to get a GPIO from the device-tree
Add managed functions to get a gpio from the devce-tree, based on a
property name (minus the '-gpios' suffix) and optionally an index.

When the device is unbound, the GPIO is automatically released and the
data structure is freed.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Pratyush Yadav <p.yadav@ti.com>
2020-09-30 11:55:22 -04:00
Jean-Jacques Hiblot
139e4a1cbe drivers: reset: Add a managed API to get reset controllers from the DT
Add managed functions to get a reset_ctl from the device-tree, based on a
name or an index.
Also add a managed functions to get a reset_ctl_bulk (array of reset_ctl)
from the device-tree.

When the device is unbound, the reset controllers are automatically
released and the data structure is freed.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Pratyush Yadav <p.yadav@ti.com>
2020-09-30 11:55:22 -04:00