Commit Graph

99586 Commits

Author SHA1 Message Date
Heinrich Schuchardt
ac3b51ef72 bootm: pass kernel load address not entry point for IH_OS_EFI
The EFI sub-system needs the load address and not the entry point
to boot the binary passed from the bootm command. The entry point
is derived from the PE-COFF header of the binary.

Fixes: ecc7fdaa9e ("bootm: Add a bootm command for type IH_OS_EFI")
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2025-05-01 09:24:39 +02:00
Anshul Dalal
6f399d4116 doc: ti: k3: add language for code-block directive
The code-block directive supports the optional language property which
enables syntax highlighting for the block[1].

This patch adds the relevant language property for code-blocks in k3
docs.

[1]:
https://www.sphinx-doc.org/en/master/usage/restructuredtext/directives.html#directive-code-block

Signed-off-by: Anshul Dalal <anshuld@ti.com>
2025-05-01 09:24:27 +02:00
Anshul Dalal
c00f08c20a doc: ti: update bash code-block directives to prompt
The code-block directive requires addition of the prompt symbol for each
line, using the prompt directive instead allows for auto insertion of
the symbol per line[1].

For the readers, the character added by the prompt directive is
un-selectable i.e the entire line can be more easily selected for copy
pasting etc. Whereas with code-block, the prompt symbol like "$" is also
selectable which is usually not the intent.

This is mostly a QoL addition + making the docs consistent since k3.rst
makes use of prompt directives which these board docs include from.

[1]: https://pypi.org/project/sphinx-prompt/

Signed-off-by: Anshul Dalal <anshuld@ti.com>
2025-05-01 09:24:24 +02:00
Adriano Cordova
485ab4c6aa efi_loader: fix typo initd_sz to initrd_sz
Signed-off-by: Adriano Cordova <adriano.cordova@canonical.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2025-05-01 09:19:24 +02:00
Adriano Cordova
24600fd068 efi_loader: bootbin: do not load an initrd if none is provided
Do not try to create an initrd device path nor try to register
an initrd with the EFI_LOAD_FILE2_PROTOCOL if none is provided.

Handle initrd installation in efi_binary_run_dp with
efi_install_initrd, imitating what is done for the fdt.

Fixes: 36835a9105 ("efi_loader: binary_run: register an initrd")
Reported-by: Weizhao Ouyang <o451686892@gmail.com>
Signed-off-by: Adriano Cordova <adriano.cordova@canonical.com>
Tested-by: Weizhao Ouyang <o451686892@gmail.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2025-05-01 09:19:24 +02:00
Jerome Forissier
a4af308e4a uthread: doc: fix inline documentation
Fix Sphinx warnings:

 $ make htmldocs
 [...]
 ./include/uthread.h:56: warning: cannot understand function prototype: 'enum uthread_mutex_state '
 ./include/uthread.h:64: warning: cannot understand function prototype: 'struct uthread_mutex '
 ./include/uthread.h:56: warning: cannot understand function prototype: 'enum uthread_mutex_state '
 ./include/uthread.h:64: warning: cannot understand function prototype: 'struct uthread_mutex '

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Reported-by: Tom Rini <trini@konsulko.com>
Tested-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
2025-05-01 09:19:07 +02:00
Christian Marangi
aa96cda0a5 clk: fix crash on clk_set_rate clean rate cache
It's currently possible to make the bootloader crash on calling
clk_set_rate caused by the loop in clk_clean_rate_cache.

The loop assume that every child of the clock node are also clock
device but this is not always the case. For example it's common for a
clock to bind to a reset device or also expose a syscon if the clock
register map is also used to apply special configuration.

In such case, on accessing a device as a clock, the bootloader crash. To
correctly handle this, check if the child device is actually a clock and
ignore otherwise.

Fixes: 6b7fd3128f ("clk: fix set_rate to clean up cached rates for the hierarchy")
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Michael Trimarchi <michael@amarulasolutions.com>
2025-04-30 07:50:18 -06:00
Weijie Gao
a6da395b5d common: board: fix build condition of noncached memory initcall
CONFIG_SYS_NONCACHED_MEMORY is defined as hex, not bool. It should be
replaced with CONFIG_SYS_HAS_NONCACHED_MEMORY when switched from #ifdef to
CONFIG_IS_ENABLED().

Fixes: 6c171f7a18 (common: board: make initcalls static)
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
Tested-by: Marcel Ziswiler <marcel.ziswiler@codethink.co.uk> # rock5b
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
2025-04-30 07:49:57 -06:00
Prasad Kummari
f59cb6a697 Revert "mtd: spi-nor: Remove recently added SST special case"
SST(sst26wf016) flashes have multiple erase block sizes, including
8 KB, 32 KB, and 64 KB. Since a 64 KB sector erase cannot be performed
on all blocks, the 4 KB sector erase command should be used instead.
Enabling the SPI_FLASH_USE_4K_SECTORS configuration allows the use of
4 KB sector erases, but it may increase the erase operation time for large
memory flashes.

This reverts commit 34cd4a72fb

MEMORY ORGANIZATION:
The SST26WF016B/016BA SQI memory array is organized
in uniform, 4 KByte erasable sectors with the following
erasable blocks: eight 8 KByte parameter, two
32 KByte overlay, and thirty 64 KByte overlay blocks.
See Figure 3-1.

Top of Memory Block
┌──────────┐
│  8 KByte │
├──────────┤
│  8 KByte │
├──────────┤
│  8 KByte │
├──────────┤
│  8 KByte │
├──────────┤
│ 32 KByte │
├──────────┤
│ 64 KByte │
├──────────┤
│ 64 KByte │
├──────────┤
│ 64 KByte │
├──────────┤
│ 32 KByte │
├──────────┤
│  8 KByte │
├──────────┤
│  8 KByte │
├──────────┤
│  8 KByte │
├──────────┤
│  8 KByte │
└──────────┘
Bottom of Memory Block

      ┌────────────────────────────────┐
      │            64 KByte            │
      ├────────────────────────────────┤
      │            64 KByte            │
      └────────────────────────────────┘

      Expanded View:
      ┌──────┐ ┌──────┐ ┌──────┐ ┌──────┐
      │ 4 KB │ │ 4 KB │ │ 4 KB │ │ 4 KB │
      ├──────┤ ├──────┤ ├──────┤ ├──────┤
      │  . .  .  (continues) . .  .   │
      └──────┘ └──────┘ └──────┘ └──────┘

2 Sectors for 8 KByte blocks
8 Sectors for 32 KByte blocks
16 Sectors for 64 KByte blocks

Link: https://ww1.microchip.com/downloads/en/DeviceDoc/20005013D.pdf
Signed-off-by: Prasad Kummari <prasad.kummari@amd.com>
2025-04-29 15:29:00 -06:00
Naresh Kumar Ravulapalli
c0ed43c2a9 drivers: spi: Fix data loss issue in QSPI
QSPI driver performs chip select operation before every read/write
access. During this operation, driver needs to enable and disable
the QSPI controller. This may cause data loss if there is inadvertent
halting of any ongoing read/write operation. To avoid this scenario,
waiting for the QSPI status to be idle before next read/write
operation is implemented.

Signed-off-by: Naresh Kumar Ravulapalli <nareshkumar.ravulapalli@altera.com>
Reviewed-by: Tien Fong Chee <tien.fong.chee@intel.com>
2025-04-29 15:28:54 -06:00
Tom Rini
93f4888d71 Merge patch series "Add support for Infineon S28HL256T and S28HL02GT"
Takahiro Kuwano <Takahiro.Kuwano@infineon.com> says:

Those are 3.0V, 256Mb/2Gb NOR Flash devices with Octal interface.
Same fanctionalities with 1.8V version that are already supported.

Link: https://lore.kernel.org/r/cover.1743575001.git.Takahiro.Kuwano@infineon.com
2025-04-29 15:27:40 -06:00
Takahiro Kuwano
10285e550a mtd: spi-nor-ids: Add support for S28HL02GT
Infineon S28HL02GT is 3.0V, 2Gb Flash device with Octal interface.
It has the same functionalities with S28HS02GT.

Link: https://www.infineon.com/dgdl/Infineon-S28HS02GT_S28HS04GT_S28HL02GT_S28HL04GT_2Gb_4Gb_SEMPER_Flash_Octal_interface_1.8V_3.0V-DataSheet-v01_00-EN.pdf?fileId=8ac78c8c7e7124d1017f0631e33714d9
Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: Takahiro Kuwano <Takahiro.Kuwano@infineon.com>
2025-04-29 15:27:27 -06:00
Takahiro Kuwano
2aee40a49b mtd: spi-nor-ids: Add support for S28HL256T
Infineon S28HL256T is 3.0V, 256Mb Flash device with Octal interface.
It has the same functionalities with S28HS256T.

Link:https://www.infineon.com/dgdl/Infineon-S28HS256T_S28HL256T_256Mb_SEMPER_Flash_Octal_interface_1_8V_3-DataSheet-v02_00-EN.pdf?fileId=8ac78c8c8fc2dd9c018fc66787aa0657

Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: Takahiro Kuwano <Takahiro.Kuwano@infineon.com>
2025-04-29 15:27:27 -06:00
Bernhard Messerklinger
37ccf4a949 mtd: spi-nor: Use CONFIG_IS_ENABLED for CONFIG_SPI_FLASH_BAR defines
At the moment a mixture of ifdef(CONFIG_IS_ENABLED) and
CONFIG_IS_ENABLED(SPI_FLASH_BAR) is used in the spi-nor framework.
This leads to misbehaviour in the SPL as there is no Kconfig option
CONFIG_SPL_SPI_FLASH_BAR. This commit standardizes the use of
CONFIG_SPI_FLASH to get SPLs that load U-Boot proper from the
SPI flash to work again.

Fixes: 9bb02f7 (mtd: spi-nor: Fix the spi_nor_read() when config SPI_STACKED_PARALLEL is enabled)
Signed-off-by: Bernhard Messerklinger <bernhard.messerklinger@br-automation.com>
2025-04-29 15:27:07 -06:00
Venkatesh Yadav Abbarapu
299371dc8e mtd: spi-nor: Add NO_CHIP_ERASE flag for mt35xu01g/2g
Since the opcode SPINOR_OP_CHIP_ERASE (0xc7) is not supported
for the mt35xu01g/2g flashes, the NO_CHIP_ERASE flag has been added
to enable sector erase functionality instead.

Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com>
2025-04-29 15:24:13 -06:00
Tom Rini
d75998b476 Docker, CI: Add vexpress_fvp / vexpress_fvp_bloblist support
This adds the vexpress_fvp and vexpress_fvp_bloblist platforms to the
list of platforms we test via emulator in CI. In order to do this we
need to first have our container runtime have TF-A builds for the
vexpress_fvp platform, both with and without transfer list support as
well as installing "telnet" so that we can access console. In the CI
files we check for the existence of /opt/tf-a/${TEST_PY_BD} and if
found, copy bl1.bin and fip.bin to /tmp and set the variables so that we
can later run FVP to run.

Note that we currently disable the hostfs (semihosting) tests as they
trigger a bug in FVP. This has been reported upstream, and can be
enabled when fixed.

Reviewed-by: Harrison Mutai <harrison.mutai@arm.com>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
2025-04-29 11:40:40 -06:00
Tom Rini
b249e08ec9 Prepare v2025.07-rc1
Signed-off-by: Tom Rini <trini@konsulko.com>
2025-04-28 15:39:42 -06:00
Weijie Gao
65a0d47f5a mtd: mtdparts: calculate mtd partition offset before calculating size
The mtd partition offset must be calculated first as it will be
referenced when calculating the mtd partition size.

Change-Id: Iccfd101b0a9597ac240c25670da638a82af28980
Fixes: 1ca97ee903 (mtd: mtdpart: Support MTD_SIZE_REMAINING with unallocated memory area)
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
Reported-by: Francesco Dolcini <francesco@dolcini.it>
2025-04-28 13:26:15 -06:00
Carlos López
2c529839a9 mkimage: fix option parsing segfault
getopt_long() expects a NULL-terminated list of structures. The current
list in mkimage does not have a zero-filled structure at the end, which
can cause getopt_long() to walk past the end of the array when passing
an unknown option, causing a segmentation fault.

As a reproducer, the following command causes a segmentation fault
(tested in Debian 12):

    mkimage --foobar

Signed-off-by: Carlos López <carlos.lopezr4096@gmail.com>
2025-04-28 13:25:59 -06:00
Sughosh Ganu
23e7088dde lmb: use a different bit position for LMB_NOMAP
The LMB memory region attributes flags are used to specify the
behaviour of the memory regions with respect to allocations -- for
e.g. it is allowed to re-allocate a memory region already reserved
with the LMB_NONE flag. The flags use values with different bit
positions through the BIT() macro. Move the LMB_NOMAP value to bit
position 1, and also move the other flags accordingly. Using bit
position 0 for LMB_NOMAP results in the logic in
lmb_print_region_flags() to break, which prints an incorrect value for
the regions with LMB_NOMAP atribute.

Fixes: 3d56c06551 ("lmb: Move enum lmb_flags to a u32")
Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
2025-04-28 13:25:55 -06:00
Aristo Chen
1c07d22ebe cmd: Kconfig: Fix typos
fix the following typos
- from "categorys" to "categories"
- from "indivdually" to "individually"

Signed-off-by: Aristo Chen <aristo.chen@canonical.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
2025-04-28 13:25:30 -06:00
Tom Rini
7bf7522383 cros_ec_sandbox.c: Drop spi.h include
As this driver needs to use the special sandbox <asm/malloc.h> header
rather than normal malloc, it must be careful of the includes it brings
in. It does not need <spi.h> for anything, so drop it.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
2025-04-28 13:25:00 -06:00
Siddharth Vadapalli
05dc050059 net: ti: am65-cpsw-nuss: invoke phy_config() in driver's .start callback
Currently, the phy_config() API is invoked by the driver only once since it
has been probed. While this works in general, it doesn't allow the driver
to bring the PHY back to its default reset state. As a result, the driver
might not be able to recover the PHY from a bad state. To address this,
move phy_config() into the driver's start callback (am65_cpsw_start()).

Apart from providing the means to recover the PHY in the event of failure,
the implementation is in line with the idea of "reset and configure" that
is already followed by am65_cpsw_start() when it comes to programming the
CPSW MAC.

Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
2025-04-28 13:24:56 -06:00
Tom Rini
6d159cf272 Merge patch series "Apple RTKit improvements"
Mark Kettenis <kettenis@openbsd.org> says:

This is a collection of improvements for the Apple RTKit code
that we have been carrying downstream for some time now.

Link: https://lore.kernel.org/r/20250420115808.94272-1-kettenis@openbsd.org
2025-04-28 13:17:20 -06:00
Hector Martin
4a55e7f031 arm: apple: rtkit: Support allocating OSLog out of SRAM in helper
The new OSLog region in MTP (firmware 13.3+) persists on handoff to
Linux. To avoid having to come up with some weird DART handoff or DAPF
tricks, let's just steal some of the coprocessor's dedicated SRAM. This
keeps it happy and Linux doesn't need any special handoff then.

Signed-off-by: Hector Martin <marcan@marcan.st>
Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
2025-04-28 13:16:45 -06:00
Hector Martin
fe593cc8ed arm: apple: rtkit: Add endpoint field to buffers
To be used for special-case oslog support in rtkit-helper.

Signed-off-by: Hector Martin <marcan@marcan.st>
Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
2025-04-28 13:16:45 -06:00
Hector Martin
082789a4f7 arm: apple: rtkit: Add OSLog buffer support
This will work for u-boot itself, but needs a special workaround in the
MTP driver for Linux handoff to work.

Signed-off-by: Hector Martin <marcan@marcan.st>
Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
2025-04-28 13:16:45 -06:00
Hector Martin
7bac7f5f01 arm: apple: rtkit: Add a generic RTKit helper driver
This driver handles the MTP ASC coprocessor, which does not need any
special handling on the RTKit side and communicates out-of-band.

Signed-off-by: Hector Martin <marcan@marcan.st>
Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
2025-04-28 13:16:45 -06:00
Hector Martin
89cb15788a arm: apple: rtkit: Add default buffer handlers
For devices without specific buffer methods, just assume we can give
them raw memory pointers when they request a buffer.

Signed-off-by: Hector Martin <marcan@marcan.st>
Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
2025-04-28 13:16:45 -06:00
Hector Martin
72bc04b874 arm: apple: rtkit: Add support for AP power & syslogs
This is required for MTP to work properly

Signed-off-by: Hector Martin <marcan@marcan.st>
Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
2025-04-28 13:16:45 -06:00
Tom Rini
962d9635d4 Merge tag 'u-boot-imx-master-20250428' of https://gitlab.denx.de/u-boot/custodians/u-boot-imx
CI: https://source.denx.de/u-boot/custodians/u-boot-imx/-/pipelines/25974

- Fix power-domain ref counting regression.
- Fix i.MX8MP USB clock regression.
- Fix i.MX8MM osc_32k regression in SPL.
- Finish converting clock-osc-24 back to osc_24 on i.MX.
- Several imx8mp capricorn updates.
- Update Stefano Babic's email address.
- Fix fsl_qspi bug by moving AHB read buffer config after LUT.
- Fix verdin imx95 sku 0089 pid4.
2025-04-28 12:45:45 -06:00
Tom Rini
b2b2a21b87 Merge patch series "bloblist: fix the overriding of fdt from bloblist"
This series from Raymond Mao <raymond.mao@linaro.org> fixes some cases
of passing the device tree to U-Boot via standard passage and then
ensures that we set the environment variable of the device tree
correctly in this case.

Link: https://lore.kernel.org/r/20250331224011.2734284-1-raymond.mao@linaro.org
2025-04-28 12:45:45 -06:00
Tom Rini
d2eef3a4a7 Merge branch 'master' of https://source.denx.de/u-boot/custodians/u-boot-sunxi
We have improvements to the reliability of H6 and H616 DRAM
initialisation, hopefully avoiding those occasional size misdetections
many people reported before.
Also there is some modernisation of the USB PHY code, to use DT provided
regulators and GPIOs, instead of relying on this being badly duplicated
in Kconfig. This also happens to fix broken USB operations for older
boards (using the A20 SoCs, for instance), which were clashing over
grabbing some GPIOs, leading to a driver bailout.  There is also some
rework of the H6/H616 SPL clock code, to prepare it for being reused by
the upcoming Allwinner A523 support. This drops the usage of C structs
to model MMIO register frames, and replaces them by using an addition of
the base address with a macro defined offset.  Also in preparation for
A523 there is one fix and one addition for the FEL code, to prepare for
the GICv3 interrupt controller that the new SoC uses. And since this is
a simple fix, and was ready, there is also the watchdog driver for that
new SoC. Finally tossing in an easy fix to some H616 defconfig files to
enable eMMC.

I also use the opportunity to enable proper page table protection
(observing read-only and no-execute attributes), support for which the
arm64 port recently gained. I didn't spot any issues on my arm64 board
tests, but it can be easily disabled or backed out again in case any
issues arise.

Full support for the two new SoC series (A133 and A523) we are working
on is not quite ready yet, but might follow still a bit later if
progress permits.

CI passed, and boot-tested on at least one board with a H616, H6, A64,
H3, A20, T113s.
2025-04-28 12:45:45 -06:00
Andre Przywara
85e9882a17 sunxi: clock: H6: remove struct sunxi_prcm_reg
With the SPL clock code and the DRAM init routine we converted all users
of the H6 class "struct sunxi_prcm_reg" over to use #define'd register
offsets now.

Drop the whole definition of this struct now, since it's not needed
anymore, for all H6 and H616 boards.
This removes the entire fragile and questionable definition, and allows
new SoCs to share the code more easily.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2025-04-28 12:45:44 -06:00
Andre Przywara
3389c57297 sunxi: H6/H616: dram: remove usage of struct sunxi_prcm_reg
The Allwinner H6 and H616 DRAM initialisation code uses a complex C
struct, modelling the PRCM clock register frame. For those SoCs, this
struct contains 20 registers, but the DRAM code only uses two of them.

Since we want to get rid of this struct, drop the usage of the struct in
the H6 and H616 DRAM code, by using #define'd register names and their
offset, and then adding those names to the base pointer.

This removes one more user of the PRCM clock register struct.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2025-04-28 12:45:44 -06:00
Andre Przywara
90b74b3f51 sunxi: clock: H6: drop usage of struct sunxi_prcm_reg
U-Boot drivers often revert to using C structures for modelling hardware
register frames. This creates some problems:
- A "struct" is a C language construct to group several variables
  together. The details of the layout of this struct are partly subject
  to the compiler's discretion (padding and alignment).
- The "packed" attribute would force a certain layout, but we are not
  using it.
- The actual source of information from the data sheet is the register
  offset. Here we create an artificial struct, carefully tuning the
  layout (with a lot of reserved members) to match that offset. To help
  with correctness, we put the desired information as a *comment*,
  though this is purely for the human reader, and has no effect on the
  generated layout. This sounds all very backwards.
- Using a struct suggests we can assign a pointer and then access the
  register content via the members. But this is not the case, instead
  every MMIO register access must go through specific accessor functions,
  to meet the ordering and access size guarantees the hardware requires.
- We share those structs in code shared across multiple SoC families,
  though most SoCs define their own version of the struct. Members must
  match in their name, across every SoC, otherwise compilation will fail.
  We work around this with even more #ifdefs in the shared code.
- Some SoCs have an *almost* identical layout, but differ in a few
  registers. This requires hard to maintain #ifdef's in the struct
  definition.
- Some of the register frames are huge: the H6 CCU device defines 127
  registers. We use 15 of them. Still the whole frame would need to be
  described, which is very tedious, but for no reason.
- Adding a new SoC often forces people to decide whether to share an
  existing struct, or to create a new copy. For some cases (say like 80%
  similarity) this works out badly either way.

The Linux kernel heavily frowns upon those register structs, and instead
uses a much simpler solution: #define REG_NAME  <offset>
This easily maps to the actual information from the data sheet, and can
much simpler be shared across multiple SoCs, as it allows to have all
SoC versions visible, so we can use C "if" statements instead of #ifdef's.
Also it requires to just define the registers we need, and we can use
alternative locations for some registers much more easily.

Drop the usage of "struct sunxi_prcm_reg" in the H6 SPL clock code, by
defining the respective register names and their offsets, then adding
them to the base pointer.
We cannot drop the struct definition quite yet, as it's also used in
other drivers, still.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2025-04-28 12:45:44 -06:00
Andre Przywara
5721a3c47a sunxi: clock: H6: remove struct sunxi_ccm_reg
With the SPL clock code, the MMC driver, and the DRAM init routine we
converted all users of the H6 class "struct sunxi_ccm_reg" over to use
 #define'd register offsets now.

Drop the whole definition of this struct now, since it's not needed
anymore, for all H6 and H616 boards.
This removes the entire fragile and questionable definition, and allows
new SoCs to share the code more easily.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2025-04-28 12:45:44 -06:00
Andre Przywara
c626eff09a sunxi: H6: dram: remove usage of struct sunxi_ccm_reg
The Allwinner H6 DRAM initialisation code uses a complex C struct,
modelling the clock device's register frame. For this SoC, the struct
contains 127 registers, but the DRAM code only uses four of them.

Since we want to get rid of this struct, drop the usage of the struct in
the H6 DRAM code, by using #define'd register names and their offset, and
then adding those names to the base pointer.

This removes one more user of the clock register struct.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2025-04-28 12:45:44 -06:00
Andre Przywara
a8c232c430 sunxi: H616: dram: remove usage of struct sunxi_ccm_reg
The Allwinner H616 DRAM initialisation code uses a complex C struct,
modelling the clock device's register frame. For this SoC, the struct
contains 127 registers, but the DRAM code only uses four of them.

Since we want to get rid of this struct, drop the usage of the struct in
the H616 DRAM code, by using #define'd register names and their offset,
and then adding those names to the base pointer.

This removes one more user of the clock register struct.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2025-04-28 12:45:44 -06:00
Andre Przywara
0527f30672 sunxi: mmc: remove usage of struct sunxi_ccm_reg
The Allwinner MMC code uses a complex C struct, modelling the clock
device's register frame. We rely on sharing the member names across all
Allwinner SoCs, which is fragile.

Drop the usage of the struct in the MMC code, by using #define'd
register names and their offset, and then adding those names to the base
pointer. This requires to define those offsets for all SoCs, but since we
only use between four and six clock registers in the MMC code, this is
easily done.

This removes one common user of the clock register struct.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2025-04-28 12:45:44 -06:00
Andre Przywara
0453a1d9bb sunxi: clock: H6: drop usage of struct sunxi_ccm_reg
U-Boot drivers often revert to using C structures for modelling hardware
register frames. This creates some problems:
- A "struct" is a C language construct to group several variables
  together. The details of the layout of this struct are partly subject
  to the compiler's discretion (padding and alignment).
- The "packed" attribute would force a certain layout, but we are not
  using it.
- The actual source of information from the data sheet is the register
  offset. Here we create an artificial struct, carefully tuning the
  layout (with a lot of reserved members) to match that offset. To help
  with correctness, we put the desired information as a *comment*,
  though this is purely for the human reader, and has no effect on the
  generated layout. This sounds all very backwards.
- Using a struct suggests we can assign a pointer and then access the
  register content via the members. But this is not the case, instead
  every MMIO register access must go through specific accessor functions,
  to meet the ordering and access size guarantees the hardware requires.
- We share those structs in code shared across multiple SoC families,
  though most SoCs define their own version of the struct. Members must
  match in their name, across every SoC, otherwise compilation will fail.
  We work around this with even more #ifdefs in the shared code.
- Some SoCs have an *almost* identical layout, but differ in a few
  registers. This requires hard to maintain #ifdef's in the struct
  definition.
- Some of the register frames are huge: the H6 CCU device defines 127
  registers. We use 15 of them. Still the whole frame would need to be
  described, which is very tedious, but for no reason.
- Adding a new SoC often forces people to decide whether to share an
  existing struct, or to create a new copy. For some cases (say like 80%
  similarity) this works out badly either way.

The Linux kernel heavily frowns upon those register structs, and instead
uses a much simpler solution: #define REG_NAME	<offset>
This easily maps to the actual information from the data sheet, and can
much simpler be shared across multiple SoCs, as it allows to have all
SoC versions visible, so we can use C "if" statements instead of #ifdef's.
Also it requires to just define the registers we need, and we can use
alternative locations for some registers much more easily.

Drop the usage of "struct sunxi_ccm_reg" in the H6 SPL clock code, by
defining the respective register names and their offsets, then adding
them to the base pointer.
We cannot drop the struct definition quite yet, as it's also used in
other drivers, still.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2025-04-28 12:45:44 -06:00
Andre Przywara
1d26da5a6a sunxi: armv8: FEL: save and restore SP_IRQ
Thanks for Jernej's JTAG debugging effort, it turns out that the BROM
expects SP_IRQ to be saved and restored, when we want to enter back into
FEL after the SPL's AArch64 stint.
Save and restore SP_IRQ as part of the FEL state handling. The banked
MRS/MSR access to SP_IRQ, without actually being in IRQ mode, was
introduced with the ARMv7 virtualisation extensions. The Arm Cortex-A8
cores used in the A10/A13s or older F1C100s SoCs would not support that,
but this code here is purely in the ARMv8/AArch64 code path, so it's
safe to use unconditionally.

Reported-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
2025-04-28 12:45:44 -06:00
Andre Przywara
5a9014a8ea sunxi: armv8: FEL: save and restore GICv3 registers
To be able to return to the BootROM FEL USB debug code, we must restore
the core's state as accurately as possible after the SPL has been run.
Since the BootROM runs in AArch32, but the SPL uses AArch64, this requires
a core reset, which clears the core's state.
So far we were saving and restoring the required registers like SCTLR
and VBAR, but could ignore the interrupt controller's state (GICC), since
that lives in MMIO registers, unaffected by a core reset.
Newer Allwinner SoCs now feature a GICv3 interrupt controller, which keeps
some GIC state in architected system registers, and those are cleared
when we switch back to AArch32.

To enable FEL operation on the Allwinner A523 SoC,
Add AArch32 assembly code to save and restore the ICC_PMR and ICC_IGRPEN1
system registers. The other GICv3 sysregs are either not relevant for the
BROM operation, or haven't been changed from their reset defaults by the
BROM anyway.

This enables FEL operation on the Allwinner A523 family of SoCs.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
2025-04-28 12:45:44 -06:00
Andre Przywara
8fb6c9343d watchdog: sunxi: add A523 support
The Allwinner A523 SoC moved the watchdog into a separate MMIO frame,
and also shifted the registers a bit: the control, config, and mode
register are located four bytes earlier.

Add the new compatible string, and connect it to the new struct
describing the new register layout.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Stefan Roese <sr@denx.de>
2025-04-28 12:45:44 -06:00
Andre Przywara
d8aea14306 sunxi: Kconfig: Remove obsolete USBx_* pin symbols
Now that the USB PHY driver uses the device tree to get the VBUS detect
and USB ID GPIOs, these Kconfig symbols are unused. Remove them from
their Kconfig definition, and also from all defconfig files.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
2025-04-28 12:45:44 -06:00
Andre Przywara
ab4c636484 phy: sun4i-usb: Determine USB OTG detection pin from devicetree
So far Allwinner boards controlled the USB OTG ID detection via the
respective GPIO pin specified in Kconfig, as a string. All boards should
have the same GPIO already specified in the devicetree, in the
usb0_id_det-gpios property.

Convert the usage of the Kconfig configured GPIO over to query that
information from the devicetree, then use the existing DM GPIO
infrastructure to request the GPIO.
Only PHY0 supports USB-OTG, so limit the GPIO request to that PHY, to
avoid claiming it multiple times.

This removes the need to name that GPIO in the defconfig file.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
2025-04-28 12:45:44 -06:00
Andre Przywara
af24fbb24a phy: sun4i-usb: Determine VBUS detection pin from devicetree
So far Allwinner boards controlled the USB VBUS detection via the
respective GPIO pin specified in Kconfig, as a string. All boards should
have the same GPIO already specified in the devicetree, in the
usb0_vbus_det-gpios property.

Convert the usage of the Kconfig configured GPIO over to query that
information from the devicetree, then use the existing DM GPIO
infrastructure to request the GPIO.
Only PHY0 supports USB-OTG, so limit the GPIO request to that PHY, to
avoid claiming it multiple times.

This removes the need to name that GPIO in the defconfig file.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
2025-04-28 12:45:44 -06:00
Samuel Holland
01658ef333 gpio: axp: Remove virtual VBUS enable GPIO
Now that this functionality is modeled using the device tree and
regulator uclass, the named GPIO is not referenced anywhere. Remove
it, along with the rest of the support for AXP virtual GPIOs.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
2025-04-28 12:45:44 -06:00
Samuel Holland
0e71b2ee15 sunxi: Remove obsolete USBx_VBUS_PIN Kconfig symbols
Now that the USB PHY driver uses the device tree to get VBUS supply
regulators, these Kconfig symbols are unused. Remove them.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
2025-04-28 12:45:43 -06:00
Samuel Holland
3d88f264f4 phy: sun4i-usb: Control supplies via the regulator uclass
The device tree binding for the PHY provides VBUS supplies as regulator
references. Now that all boards have the appropriate regulator uclass
drivers enabled, the PHY driver can switch to using them. This replaces
direct GPIO usage, which in some cases needed a special DM-incompatible
"virtual" GPIO from the PMIC.

The following boards provided a value for CONFIG_USB0_VBUS_PIN, but are
missing the "usb0_vbus-supply" property in their device tree. None of
them have the MUSB controller enabled in host or OTG mode, so they
should see no impact:
 - Ainol_AW1_defconfig / sun7i-a20-ainol-aw1
 - Ampe_A76_defconfig / sun5i-a13-ampe-a76
 - CHIP_pro_defconfig / sun5i-gr8-chip-pro
 - Cubieboard4_defconfig / sun9i-a80-cubieboard4
 - Merrii_A80_Optimus_defconfig / sun9i-a80-optimus
 - Sunchip_CX-A99_defconfig / sun9i-a80-cx-a99
 - Yones_Toptech_BD1078_defconfig / sun7i-a20-yones-toptech-bd1078
 - Yones_Toptech_BS1078_V2_defconfig /
   sun6i-a31s-yones-toptech-bs1078-v2
 - iNet_3F_defconfig / sun4i-a10-inet-3f
 - iNet_3W_defconfig / sun4i-a10-inet-3w
 - iNet_86VS_defconfig / sun5i-a13-inet-86vs
 - iNet_D978_rev2_defconfig / sun8i-a33-inet-d978-rev2
 - icnova-a20-swac_defconfig / sun7i-a20-icnova-swac
 - sun8i_a23_evb_defconfig / sun8i-a23-evb

Similarly, the following boards set CONFIG_USB1_VBUS_PIN, but do not
have "usb1_vbus-supply" in their device tree. Neither of them have USB
enabled at all, so again there should be no impact:
 - Cubieboard4_defconfig / sun9i-a80-cubieboard4 (also for USB3)
 - sun8i_a23_evb_defconfig / sun8i-a23-evb

The following boards use a different pin for USB1 VBUS between their
defconfig and their device tree. Depending on which is correct, they
may be broken:
 - Linksprite_pcDuino3_Nano_defconfig (PH11) /
   sun7i-a20-pcduino3-nano (PD2)
 - icnova-a20-swac_defconfig (PG10) / sun7i-a20-icnova-swac (PH6)

Finally, this board has conflicting pins given for its USB2 VBUS:
 - Lamobo_R1_defconfig (PH3) / sun7i-a20-lamobo-r1 (PH12)

Signed-off-by: Samuel Holland <samuel@sholland.org>
[Andre: use regulator_set_enable_if_allowed()]
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
2025-04-28 12:45:43 -06:00