Commit Graph

23047 Commits

Author SHA1 Message Date
Andre Przywara
81e712a917 ARM: relocate: Fix Thumb code by using proper label type
The generic ARM relocate_code function was using its own function entry
point as a relocation base, and it was obtaining that address by using
the "adr" instruction on that entry point label.
However that label is not just an ordinary label, instead we explicitly
mark it as a function start address. Normally that doesn't change much
(other than for debugging), but when assembled in Thumb mode, newer
versions of the GNU assembler prepare everything for this address being
used as the argument to a "bx" call, so make sure bit 0 is set in there
to mark this function as Thumb code. Of course this doesn't end up very
well when we use this address for the ensuing memcpy operation.

To avoid this problem, and to solve it in a robust way, add an extra
label, which is not marked as a function entry, and use that for the adr
instruction. This lets all assemblers generate the right immediate offset
in the "adr" instruction.

This fixes in particular ARMv7-M ports when using GNU binutils v2.37 or
newer (commit d3e52e120b68 seems to trigger the change in behaviour).

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reported-by: Jesse Taube <mr.bossman075@gmail.com>
2022-07-26 17:53:43 -04:00
Tom Rini
86feeab3dc u-boot-imx-20220726
-------------------
 
 i.MX for 2022.10
 
 - Added i.MX93 architecture
 
 CI: https://source.denx.de/u-boot/custodians/u-boot-imx/-/pipelines/12891
 -----BEGIN PGP SIGNATURE-----
 
 iG0EABECAC0WIQS2TmnA27QKhpKSZe309WXkmmjvpgUCYt/zWg8cc2JhYmljQGRl
 bnguZGUACgkQ9PVl5Jpo76YODwCgh3JIzIi9pktCxKumx4JRS6UzwgsAn3HoXKI/
 2OEUjST1X/TI/lMFp0bw
 =EWT6
 -----END PGP SIGNATURE-----

Merge tag 'u-boot-imx-20220726' of https://gitlab.denx.de/u-boot/custodians/u-boot-imx

u-boot-imx-20220726
-------------------

i.MX for 2022.10

- Added i.MX93 architecture

CI: https://source.denx.de/u-boot/custodians/u-boot-imx/-/pipelines/12891
2022-07-26 10:26:00 -04:00
Peng Fan
e29303993b imx: imx8mm-icore: migrate to use BINMAN
Use BINMAN instead of imx specific packing method.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
2022-07-26 11:29:02 +02:00
Peng Fan
c065a6c6f6 arm: dts: imx8m: shrink ddr firmware size to actual file size
After we switch to use BINMAN_SYMBOLS, there is no need to pad
the file size to 0x8000 and 0x4000. After we use BINMAN_SYMBOLS,
the u-boot-spl-ddr.bin shrink about 36KB with i.MX8MP-EVK.

Tested-by: Tim Harvey <tharvey@gateworks.com> #imx8m[m,n,p]-venice
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
2022-07-26 11:29:02 +02:00
Peng Fan
25daa2cdda arm: dts: imx8m: update binman ddr firmware node name
We are migrating to use binman symbols, the current names are
inconsistent across different boards, so unify them.

Also add `type = "blob-ext";`, since the new names are not valid binman
types.

Tested-by: Tim Harvey <tharvey@gateworks.com> #imx8m[m,n,p]-venice
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
[Alper: Edit commit message]
Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
2022-07-26 11:29:02 +02:00
Peng Fan
481f96068e board: freescale: imx93_evk: support ethernet
Add ethernet support

Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:01 +02:00
Peng Fan
feaf8e0cf0 imx: imx93_evk: Set ARM clock to 1.7Ghz
Set ARM clock to OD frequency 1.7Ghz, since we have set PMIC VDD_SOC
to Overdrive voltage 0.9V

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:01 +02:00
Peng Fan
86a179703c imx: imx93_evk: Add basic board support
Add basic board codes and defconfig for i.MX93 11x11 EVK board.

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:01 +02:00
Peng Fan
0da3d96e10 arm: dts: Add i.MX93 SoC DTSi file
Add the DTSi file and DT header files for i.MX93 SoC

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Alice Guo <alice.guo@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:01 +02:00
Ye Li
99c7cc58e1 ddr: imx: Add i.MX9 DDR controller driver
Since i.MX9 uses same DDR PHY with i.MX8M, split the DDRPHY to a common
directory under imx, then use dedicated ddr controller driver for each
iMX9 and iMX8M.

The DDRPHY registers are space compressed, so it needs conversion to
access the DDRPHY address. Introduce a common PHY address remap function
for both iMX8M and iMX9 for all PHY registers accessing.

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:01 +02:00
Ye Li
e631185a20 imx: imx9: clock: Add DDR clock support
Implement the DDR driver clock interfaces for set DDR rate and
bypass DDR PLL

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:01 +02:00
Ye Li
87650716ea imx: imx9: Support multiple env storages at runtime
Select env storages according to boot device at runtime

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:01 +02:00
Peng Fan
c383379f25 imx: imx9: Support booting m33 from Acore
Add bootaux command to support on-demand booting M33 from u-boot.
It kicks M33 via ATF by "bootaux 0x201e0000 0"

Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:01 +02:00
Peng Fan
a8753afed7 imx: imx9: Add M33 release prepare function
To support on-demand booting M33 image from A core. SPL needs
to follow M33 kick up sequence to release M33 firstly,
then set M33 CPUWAIT signal. ATF will clear CPUWAIT to kick
M33 to run.

The prepare function also works around the M33 TCM ECC issue by
clean the TCM. Also enable sentinel handshake and WDOG1 clock
for M33 stop and reset.

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:01 +02:00
Peng Fan
0256577a83 imx: imx9: Add MIX power init
Add power init of MEDIAMIX, MLMIX and DDRMIX. And clear isolation
of MIPI DSI/CSI, USBPHY after the power up.

SPL should call the power init in its boot sequence before accessing
above three MIX and USB.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:01 +02:00
Ye Li
12f2322736 imx: imx9: Add gpio registers structure
Add GPIO registers structure for iMX93, so that we can enable lpgpio
driver

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:01 +02:00
Alice Guo
31b3ca5527 misc: fuse: support to access fuse on i.MX93
i.MX93 fuse can be accessed through FSB and s400-api. Add mapping tables
for i.MX93. The offset address of FSB accessing OTP shadow registers is
different between i.MX8ULP and i.MX93, so use macro to define the offset
address instead of hardcode.

Signed-off-by: Alice Guo <alice.guo@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:01 +02:00
Ye Li
1a55a633e0 misc: S400_API: Rename imx8ulp_s400_msg to sentinel_msg
Use more generic name for S40x msg structure

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:01 +02:00
Peng Fan
989f73934d imx: imx9: Get the chip revision through S400 API
Update the get chip revision methond to use S400 API, also record
other information like lifecycle and UID to global data.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:01 +02:00
Ye Li
fd94c2367b imx: imx9: Add AHAB boot support
Add AHAB driver for iMX9 to do authentication by calling sentinel API

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:00 +02:00
Ye Li
5fda95fb94 imx: imx9: Add TRDC driver for TRDC init
Add TRDC driver to iMX9. The TRDC init splits to two phases:
1. Early init phase will release TRDC from Sentinel and open write
   permission to the memory where SPL image runs. Sentinel will set
   the memory to RX only after ROM authentication for the OEM
   closed part.
2. Init phase will configure TRDC to allow non-secure master to
   access DDR. So the peripherals can work in u-boot.

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:00 +02:00
Peng Fan
2727245638 misc: s400_api: introduce ahab_release_m33_trout
Introduce Sentinel API ahab_release_m33_trout to make sure sentinel
release M33 trout and make sure M33 could boot.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:00 +02:00
Peng Fan
625473d6ce misc: S400_API: New API for FW status and chip info
Add new API to get sentinel FW status and SoC chip info

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:00 +02:00
Ye Li
e5fcf91348 misc: S400_API: Update release RDC API
To support more RDC instances on i.MX93, update API to latest
definition.

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:00 +02:00
Peng Fan
45fed324b5 misc: s4mu: Support iMX93 with Sentinel MU
Support iMX93 communicate with Sentinel

Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:00 +02:00
Ye Li
03fcf96651 misc: imx: S400_API: Move S400 MU and API to a common place
Since iMX9 uses S401 which shares the API with iMX8ULP. So move S400
MU driver and API to a common place and selected by CONFIG_IMX_SENTINEL

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:00 +02:00
Peng Fan
636c95f82b imx: imx9: support romapi
i.MX9 shares same ROM API with i.MX8ULP, so make the i.MX8ULP the function
prototype common and usable by i.MX9.

Also include mmc env functions that use ROM API.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:00 +02:00
Ye Li
2c5f5457bc imx: imx9: disable watchdog
Disable all 3 wdogs on AIPS2 and unmask SRC reset trigger for WDOG3-5

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:00 +02:00
Jian Li
53cf550d23 imx: imx9: Add function to initialize timer
Add timer_init to update ARM arch timer with correct frequency
from system counter and enable system counter.

Signed-off-by: Jian Li <jian.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:00 +02:00
Peng Fan
f79c162668 imx: imx9: Add CCM and clock API support
Add clock API to support CCM root clock and LPCG setting
Set the CCM AUTHEN register to allow non-secure world to set
root clock and lpcg.

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:00 +02:00
Peng Fan
07110c6f53 imx: pinctrl: add pinctrl and pinfunc file for i.MX93
Add the pinctrl driver and pinfunc header file to support iMX93

Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:00 +02:00
Peng Fan
881df6ed84 imx: add basic i.MX9 support
Add i.MX9 Kconfig and basic files for the new SoC

Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:00 +02:00
Peng Fan
787f04bb6a imx: add USB2_BOOT type
Add USB2_BOOT type for i.MX8ULP and i.MX9

Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:00 +02:00
Peng Fan
b0a284a7c9 imx: move get_boot_device to common file
i.MX8MN/P/ULP supports ROM API, they have almost same get_boot_device
implementation, so move to a common file. And when support i.MX9,
no need to include the other function copy.

Since sys_proto.h is included in imx_romapi.c, there will be build
warning for i.MX8M because wdog_regs not defined, so include imx-regs.h
in i.MX8M sys_proro.h

Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:00 +02:00
Peng Fan
1859b8b60d imx: move get_boot_device to common header
Most i.MX implements get_boot_device, move it to common header to
simplify code

Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:00 +02:00
Peng Fan
793b760fb0 imx: simplify dependency with SPL_BOOTROM_SUPPORT
For SoCs support ROM API, CONFIG_SPL_BOOTROM_SUPPORT is needed,
so use this macro to guard the code to avoid extend the list.

And drop the guard with structure definition, there is no need.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:00 +02:00
Ye Li
bf43907f6e imx: spl: Allow iMX7/8/8M to overwrite spl_board_boot_device
Move the default mapping of spl_boot_device to weak function of
spl_board_boot_device. So that every board of iMX7/8/8M can overwrite
this function to implement specific mapping.

Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:00 +02:00
Ye Li
9270cc8f3b imx: Change USB boot device type
The SPL SDP is configured as BOOT_DEVICE_BOARD, so when booting from
USB, change its type to BOOT_DEVICE_BOARD, so we can use SDP.

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:00 +02:00
Peng Fan
2f5ee7f812 arm: makefile: cleanup mach-imx usage
All the SoCs use mach-imx has CONFIG_MACH_IMX selected, so
the macro could be the gate to build arch/arm/mach-imx to simplify
the rules.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:00 +02:00
Jun Nie
651478777b imx: syscounter: support timer_get_boot_us
With supporting timer_get_boot_us, we can profile boot up time with below
configs and function bootstage_mark_name().

CONFIG_BOOTSTAGE=y
CONFIG_BOOTSTAGE_REPORT=y
CONFIG_CMD_BOOTSTAGE=y

Signed-off-by: Jun Nie <jun.nie@linaro.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Fabio Estevam <festevam@denx.de>
2022-07-26 11:28:43 +02:00
Oleksandr Suvorov
d7fcbfc19b fpga: xilinx: add bitstream flags to driver desc
Store a set of supported bitstream types in xilinx_desc structure.
It will be used to determine whether an FPGA image is able to be
loaded with a given driver.

Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@foundries.io>
Tested-by: Ricardo Salveti <ricardo@foundries.io>
Tested-by: Adrian Fiergolski <adrian.fiergolski@fastree3d.com>
Link: https://lore.kernel.org/r/20220722141614.297383-4-oleksandr.suvorov@foundries.io
Signed-off-by: Michal Simek <michal.simek@amd.com>
2022-07-26 09:34:21 +02:00
Ashok Reddy Soma
cce3351501 mailbox: zynqmp: Move struct zynqmp_ipi_msg from sys_proto.h
Mailbox driver might be need for Versal and other future platforms.
To remove the dependency, move struct zynqmp_ipi_msg to
zynqmp_firmware.h so that mailbox driver compiles for other platforms
easily.

Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/20220722084658.30995-5-ashok.reddy.soma@xilinx.com
2022-07-26 08:36:20 +02:00
Ashok Reddy Soma
65168910ad zynqmp: Run board_get_usable_ram_top() only on main U-Boot
With commit ce39ee28ec ("zynqmp: Do not place u-boot to reserved memory
location"), the function board_get_usable_ram_top() is allocating
MMU_SECTION_SIZE of about 2MB using lmb_alloc(). But we dont have this
much memory in case of mini U-Boot.

Keep these functions which use lmb under CONFIG_LMB so that they are
compiled and used only when LMB is enabled.

Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/75e52def75f573e554a6b177a78504c128cb0c4a.1657183534.git.michal.simek@amd.com
2022-07-26 08:23:54 +02:00
Michal Simek
b09e462482 arm: riscv: Remove additional ifdef from code guarded by CONFIG_IS_ENABLED
CONFIG_OF_LIBFDT is used twice for guarding the same code. It is enough to
do it once that's why remove additional ifdefs from arm and risc-v code.

Fixes: 0c303f9a66 ("image: Drop IMAGE_ENABLE_OF_LIBFDT")
Signed-off-by: Michal Simek <michal.simek@amd.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Link: https://lore.kernel.org/r/f8e3ff9124195cbd957874de9a65ef79760ef5e7.1657183634.git.michal.simek@amd.com
2022-07-26 08:23:54 +02:00
Michal Simek
156cb2af92 arm64: zynqmp: Used fixed-partitions for QSPI in k26
Using fixed partitions is recommended way how to describe QSPI. Also add
label for qspi flash memory to be able to reference it in future.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/a84f7ce8d6472fce66539ba29d31fbaae511d94b.1655732762.git.michal.simek@amd.com
2022-07-26 08:23:54 +02:00
Ayan Kumar Halder
41d7f67448 xilinx: Remove the legacy property "#stream-id-cells"
"#stream-id-cells" was being used with "mmu-masters" for Xen specific
device trees.
With Xen commit 2278d2cbb0b7c1b48b298c6c4c6a7de2271ac928 (Link below)
Xen is able to support smmu bindings in both formats ie :
1. Using iommus (linux format)
2. Using mmu-masters (legacy format).

Thus, "#stream-id-cells" which was used for the legacy format, can be
removed as Xen can use smmu bindings in linux format.

Link: https://www.mail-archive.com/xen-devel@lists.xenproject.org/msg101649.html
Signed-off-by: Ayan Kumar Halder <ayankuma@amd.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/1e062acb233dee47cd7dd2429cb482132617cbc8.1655886415.git.michal.simek@amd.com
2022-07-26 08:23:54 +02:00
Tom Rini
032c9b045c arm: Remove unused references to CONFIG_SOC_DM*
There are no references to CONFIG_SOC_DM355 / CONFIG_SOC_DM365 /
CONFIG_SOC_DM644X / CONFIG_SOC_DM646X and the files these Makefile lines
reference have already been dropped.

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-07-25 14:57:27 -04:00
Andrew Davis
a9ec2f6509 spl: Use SPL_TEXT_BASE instead of ISW_ENTRY_ADDR
The ISW_ENTRY_ADDR symbol was used for OMAP devices in place of
SPL_TEXT_BASE. Keystone2 HS devices were not using it right either.
Remove ISW_ENTRY_ADDR and use SPL_TEXT_BASE directly.

Signed-off-by: Andrew Davis <afd@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2022-07-25 14:57:27 -04:00
Andrew Davis
121596a98f arm: k3: config.mk: Read software revision information from file on HS
Read the swrv.txt file from the TI Security Development Tools when
TI_SECURE_DEVICE is enabled. This allows us to set our software
revision in one place and have it used by all the tools that create
TI x509 boot certificates.

Signed-off-by: Andrew Davis <afd@ti.com>
2022-07-25 14:57:27 -04:00
Yogesh Siraswar
0019427251 k3_gen_x509_cert: Make SWRV configurable for anti-rollback protection
The x509 certificate SWRV is currently hard-coded to 0. This need to be
updated to 1 for j721e 1.1, j7200 and am64x. It is don't care for other
k3 devices.

Added new config K3_X509_SWRV to k3. Default is set to 1.

Signed-off-by: Yogesh Siraswar <yogeshs@ti.com>
Reviewed-by: Dave Gerlach <d-gerlach@ti.com>
2022-07-25 14:57:27 -04:00
Andrew Davis
080fe39b8c arm: mach-k3: Remove ROM firewalls on GP devices
This isn't strictly needed as these firewalls should all be disabled on
GP, but it also doesn't hurt, so do this unconditionally to remove this
use of CONFIG_TI_SECURE_DEVICE.

Signed-off-by: Andrew Davis <afd@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2022-07-25 14:57:27 -04:00
Andrew Davis
80b93bb71c arm: mach-k3: Rename SOC_K3_AM6 to SOC_K3_AM654
The first AM6x device was the AM654x, but being the first we named it
just AM6, since more devices have come out with this same prefix we
should switch it to the normal convention of using the full name of the
first compatibility device the series. This makes what device we are
talking about more clear and matches all the K3 devices added since.

Signed-off-by: Andrew Davis <afd@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2022-07-25 13:02:04 -04:00
Andrew Davis
46da163b72 arm: mach-k3: Only build init files for SPL
The content of these files are only used in SPL builds. The contents are
already ifdef for the same, remove that and only include the whole file
in the build when building for SPL.

Signed-off-by: Andrew Davis <afd@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2022-07-25 13:02:04 -04:00
Stephan Gerhold
afc13335a5 arm: dts: db410c/db820c: Fix SPMI addresses
The Qualcomm device trees in U-Boot are currently not consistent with
the upstream DTs used in the Linux kernel. While some bindings are
similar to the official specification in the Linux kernel, several
nodes have subtle differences, e.g. the "compatible"s or the exact
specification of memory registers.

This means that some of the Qualcomm-related U-Boot drivers are not
compatible with the Linux DT (and vice versa).

The SPMI node is one such example: the "core" region starts at
0x0200f000 in the upstream Linux MSM8916 DT, but in U-Boot it starts at
0x0200f800. The end result is normally the same, since the Linux SPMI
driver simply adds the 0x800 internally.

However, commit f5a2d6b4b0 ("spmi: msm: add arbiter version 5
support") imported this behavior into the U-Boot driver, without
adjusting the DB410c/DB820c device trees. This means that the 0x800
offset is now added twice, breaking all SPMI read/write operations:

  Failed to find PMIC pon node. Check device tree
  Failed to find pm8916_gpios@c000 node.
  USB init failed: -6
  starting USB...
  Bus ehci@78d9000: Failed to find pm8916_gpios@c000 node.
  probe failed, error -6
  No working controllers found

While the mistake is strictly speaking in the spmi-msm driver, fix the
issue by making the SPMI nodes in the DB410c/DB820c consistent with the
upstream Linux DT instead.

Ideally we should even go a step further by fixing the remaining uses
of custom bindings in the U-Boot drivers and moving to using the Linux
DTs as-is. This would likely avoid such mistakes in the future and
would also make the porting process much easier.

Cc: Dzmitry Sankouski <dsankouski@gmail.com>
Fixes: f5a2d6b4b0 ("spmi: msm: add arbiter version 5 support")
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
2022-07-25 13:02:04 -04:00
Matt Ranostay
cab8510821 armv8: mach-k3: correct define checking for AM625/AM642 memory maps
Using CONFIG_IS_ENABLED breaks accessing memory map structure when
doing a A53 SPL build for AM625 and AM642 platforms. This is due to
'abc if CONFIG_SPL_BUILD is defined and CONFIG_SPL_FOO is set to 'y''
in which there is no CONFIG_SPL_SOC_K3_AM625/CONFIG_SPL_SOC_K3_AM642
defined in the configuration.

For the A53 SPL builds on these platform to access the memory mapping
which it will need for enabling the mmu/cache it must use #if defined(X)
checks and not CONFIG_IS_ENABLED.

Cc: Suman Anna <s-anna@ti.com>
Cc: Neha Francis <n-francis@ti.com>
Signed-off-by: Matt Ranostay <mranostay@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2022-07-25 13:02:04 -04:00
Weijie Gao
a3ba6adb70 arm: dts: mt7622: remove default pinctrl of uart0
Currently u-boot running on mt7622 will print an warning log at beginning:
> serial_mtk serial@11002000: pinctrl_select_state_full: uclass_get_device_by_phandle_id: err=-19

It turns out that the pinctrl uclass can't work properly in board_f stage.

Since the uart0 is the default UART device used by bootrom, and will be
initialized in both bootrom and tf-a bl2. It's ok not to setup pinctrl for
uart0 in u-boot.

This patch removes the default pinctrl of uart0 to suppress the unwanted
warning.

Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
2022-07-25 13:02:04 -04:00
Anand Gadiyar
997d7a2b4b arm: dts: k3-am64-ddr fix typo causing DDR4 register corruption
The entry for DDRSS_PI_321_DATA was accidentally repeated leading to the
last few PI registers being incorrectly programmed.

Fix this.

Reported-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2022-07-25 13:02:04 -04:00
Sumit Garg
bf95d17809 board: qualcomm: Add support for QCS404 EVB
Add support for Qualcomm QCS404 SoC based evaluation board.

Features:
- Qualcomm Snapdragon QCS404 SoC
- 1GiB RAM
- 8GiB eMMC, uSD slot

U-boot is chain loaded by ABL in 64-bit mode as part of boot.img.
For detailed build and boot instructions, refer to
doc/board/qualcomm/qcs404.rst.

Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
2022-07-25 13:02:04 -04:00
Sumit Garg
a4a9d9e874 clocks: qcom: Add clock driver for QCS404 SoC
Currently this clock driver initializes clocks for UART and eMMC. Along
with this import "qcom,gcc-qcs404.h" header from Linux mainline to
support DT bindings.

Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
2022-07-25 13:02:04 -04:00
Sumit Garg
a8effc2ee4 pinctrl: qcom: Add pinctrl driver for QCS404 SoC
Currently this pinctrl driver only supports BLSP UART2 specific pin
configuration.

Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2022-07-25 13:02:04 -04:00
Sumit Garg
d35b211374 board: qualcomm: Add support for dragonboard845c
Add support for 96Boards Dragonboard 845C aka Robotics RB3 development
platform. This board complies with 96Boards Open Platform Specifications.

Features:
- Qualcomm Snapdragon SDA845 SoC
- 4GiB RAM
- 64GiB UFS drive

U-boot is chain loaded by ABL in 64-bit mode as part of boot.img.
For detailed build and boot instructions, refer to
doc/board/qualcomm/sdm845.rst, board: dragonboard845c.

Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2022-07-25 13:02:04 -04:00
Sumit Garg
f5ed6c9ccf uart: sdm845: Fix debug UART pinmux
Configure debug UART pins as function: "qup9" rather than being regular
gpios. It fixes a hang seen during pinmux setting.

Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2022-07-25 13:02:04 -04:00
Sumit Garg
ffa7928719 clocks: sdm845: Import qcom,gcc-sdm845.h
Rather than using magic numbers as clock ids for peripherals import
qcom,gcc-sdm845.h from Linux to be used standard macros for clock ids.
So start using corresponding clk-id macro for debug UART.

Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2022-07-25 13:02:04 -04:00
Sumit Garg
866985b7e6 arm64: dts: sdm845: Remove redundant u-boot DT properties
According to u-boot DT recomendation, u-boot specific DT properties belong
to *-uboot.dtsi. Also for starqltechn board (which is the only current
consumer of sdm845.dtsi), the properties are already included in
starqltechn-uboot.dtsi, so remove corresponding redundant properties.

Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2022-07-25 13:02:03 -04:00
Sumit Garg
c551c8fe5f board: starqltechn: Align DT node overrides with sdm845.dtsi
Currently there is a mismatch among DT node overrides in starqltechn
board DTS file and the actual DT nodes in the sdm845.dtsi. So fix that
to align with DT nodes in sdm845.dtsi.

Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2022-07-25 13:02:03 -04:00
Marcel Ziswiler
24a7a3c1c0 imx8mm: synchronise device tree with linux
Synchronise device tree with linux v5.19-rc5.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-07-25 16:12:01 +02:00
Marcel Ziswiler
181d1684ca imx8mq: synchronise device tree with linux
Synchronise device tree with linux v5.19-rc5.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-07-25 16:12:01 +02:00
Marcel Ziswiler
e6ad8070a7 verdin-imx8mp: synchronise device tree with linux
Synchronise device tree with linux v5.19-rc5.

Please note that this also means that instead of the previous "generic"
U-Boot specific carrier board agnostic device tree we are now using the
regular one for the Verdin Development (carrier) board (e.g.
imx8mp-verdin-wifi-dev.dtb rather than the previous imx8mp-verdin.dtb).

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-07-25 16:12:01 +02:00
Marcel Ziswiler
84c5cd9b84 imx8mp-rsb3720-a1: fix pwms property warnings
Fix the following build-time pwms property warnings:

w+arch/arm/dts/imx8mp-rsb3720-a1.dtb: Warning (pwms_property):
 /lvds_backlight@0:pwms: property size (12) too small for cell size 3
w+arch/arm/dts/imx8mp-rsb3720-a1.dtb: Warning (pwms_property):
 /lvds_backlight@1:pwms: property size (12) too small for cell size 3

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-07-25 16:12:01 +02:00
Marcel Ziswiler
e0caa84ca6 imx8mp: synchronise device tree with linux
Synchronise device tree with linux v5.19-rc5.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-07-25 16:12:01 +02:00
Marcel Ziswiler
4e5114daf9 imx8mn: synchronise device tree with linux
Synchronise device tree with linux v5.19-rc5.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-07-25 16:12:00 +02:00
Marcel Ziswiler
a68bad0a37 imx8mm-mx8menlo/verdin-imx8mm: synchronise device tree with linux
Synchronise device tree with linux v5.19-rc5.

Please note that this also means that instead of the previous "generic"
U-Boot specific carrier board agnostic device tree we are now using the
regular one for the Verdin Development (carrier) board (e.g.
imx8mm-verdin-wifi-dev.dtb rather than the previous imx8mm-verdin.dtb).

Please further note that the PMIC node name got changed from a pmic
label to pmic@25 which required adjustment in resp. board SPL file
board/toradex/verdin-imx8mm/spl.c.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-07-25 16:12:00 +02:00
Marcel Ziswiler
35c819ed4e imx8mm-kontron-n801x-s-lvds: fix pwms property warnings
Fix the following build-time pwms property warnings:

w+arch/arm/dts/imx8mm-kontron-n801x-s-lvds.dtb: Warning (pwms_property):
 /backlight:pwms: property size (12) too small for cell size 3

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-07-25 16:12:00 +02:00
Marcel Ziswiler
b96a9683e5 imx8mm-venice-gw700x: prepare to synchronise device trees with linux
As a preparatory step remove the pinctrl_pmic reference which does not
exist in the Linux upistream device tree.

This avoids the following error once synchronised:

+Error: arch/arm/dts/imx8mm-venice-gw700x-u-boot.dtsi:26.1-14 Label or
 path pinctrl_pmic not found

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-07-25 16:12:00 +02:00
Marcel Ziswiler
b4052d55ad colibri_vf: synchronise device tree with linux
Synchronise device tree with linux v5.19-rc5.

Please note that this also means that instead of the previous "generic"
U-Boot specific carrier board agnostic device tree we are now using the
regular one for the Colibri Evaluation (carrier) board V3 (e.g.
vf610-colibri-eval-v3.dtb rather than the previous vf610-colibri.dtb).

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-07-25 16:12:00 +02:00
Marcel Ziswiler
e8a9521e64 vf500/vf610: synchronise device trees with linux
Synchronise device trees with linux v5.19-rc5.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-07-25 16:12:00 +02:00
Marcel Ziswiler
fed2e400ff ARM: DTS: bk4r1/pcm052: prepare to synchronise device trees with linux
As a preparatory step rename the included SoC dtsi from vf.dtsi to
vf610.dtsi as this is how it is named in Linux upstream.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-07-25 16:12:00 +02:00
Marcel Ziswiler
25ab97986c colibri-imx7d/-emmc: synchronise device tree with linux
Synchronise device tree with linux-next next-20220708.

Please note that this also means that instead of the previous "generic"
U-Boot specific carrier board agnostic device trees we are now using the
regular ones for the Colibri Evaluation (carrier) board V3 (e.g.
imx7d-colibri-eval-v3.dtb rather than the previous
imx7-colibri-rawnand.dtb and imx7d-colibri-emmc-eval-v3.dtb rather than
the previous imx7-colibri-emmc.dtb).

Please further note that the PMIC node name got changed from rn5t567@33
to pmic@33 which required adjustment in resp. board file
board/toradex/colibri_imx7/colibri_imx7.c.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-07-25 16:12:00 +02:00
Marcel Ziswiler
2f96d4dd95 imx7s/d: synchronise device trees with linux
Synchronise device tree with linux-next next-20220708.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-07-25 16:12:00 +02:00
Marcel Ziswiler
868b5cb74e imx: imx7d-sdb: prepare to synchronise device trees with linux
As a preparatory step remove the epdc reference which does not exist in
the Linux upstream device tree and rename the qspi1 reference to qspi as
this is how it is named in the Linux upstream device tree.

This avoids the following error once synchronised:

+Error: arch/arm/dts/.imx7d-sdb-qspi.dtb.pre.tmp:10.1-6 Label or path
 epdc not found
+Error: arch/arm/dts/.imx7d-sdb-qspi.dtb.pre.tmp:29.1-7 Label or path
 qspi1 not found
+Error: arch/arm/dts/imx7d-sdb-qspi-u-boot.dtsi:6.1-7 Label or path
 qspi1 not found

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-07-25 16:12:00 +02:00
Marcel Ziswiler
7b4a934d73 imx: imx7-cm: prepare to synchronise device trees with linux
As a preparatory step rename the qspi1 reference to qspi as this is how
it is named in the Linux upstream device tree.

This avoids the following error once synchronised:

+Error: arch/arm/dts/.imx7-cm.dtb.pre.tmp:96.1-7 Label or path qspi1 not
 found

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-07-25 16:12:00 +02:00
Marcel Ziswiler
c21b61bff1 colibri-imx6ull/-emmc: synchronise device tree with linux
Synchronise device tree with linux v5.19-rc5.

Please note that this also means that instead of the previous "generic"
U-Boot specific carrier board agnostic device trees we are now using the
regular ones for the Colibri Evaluation (carrier) board V3 (e.g.
imx6ull-colibri-eval-v3.dtb rather than the previous imx6ull-colibri.dtb
and imx6ull-colibri-emmc-eval-v3.dtb rather than the previous
imx6ull-colibri-emmc.dtb).

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-07-25 16:12:00 +02:00
Marcel Ziswiler
5d7a95f499 imx6ul/imx6ull: synchronise device trees with linux
Synchronise device trees with linux v5.19-rc5.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-07-25 16:12:00 +02:00
Marcel Ziswiler
091a03f8f3 imx: mx6ul_14x14_evk: prepare to synchronise device trees with linux
As a preparatory step remove the qspi node with its flash0 label as this
is already in the Linux upstream device tree.

This avoids the following error once synchronised:

+arch/arm/dts/imx6ul-14x14-evk.dtb: ERROR (duplicate_label):
 /soc/bus@2100000/spi@21e0000/n25q256a@0: Duplicate label 'flash0' on
 /soc/bus@2100000/spi@21e0000/n25q256a@0 and
 /soc/bus@2100000/spi@21e0000/flash@0

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-07-25 16:12:00 +02:00
Marcel Ziswiler
bd483b7a9f colibri_imx6: synchronise device tree with linux
Synchronise device tree with linux-next next-20220708.

Please note that this also means that instead of the previous "generic"
U-Boot specific carrier board agnostic device tree we are now using the
regular one for the Colibri Evaluation (carrier) board V3 (e.g.
imx6dl-colibri-eval-v3.dtb rather than the previous imx6-colibri.dtb).

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-07-25 16:12:00 +02:00
Marcel Ziswiler
50ba171e2d apalis_imx6: synchronise device tree with linux
Synchronise device tree with linux-next 20220706.

Please note that this also means that instead of the previous "generic"
U-Boot specific carrier board agnostic device tree we are now using the
regular one for the Apalis Evaluation (carrier) board (e.g.
imx6q-apalis-eval.dtb rather than the previous imx6-apalis.dtb).

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-07-25 16:12:00 +02:00
Marcel Ziswiler
d0399a46e7 imx6dl/imx6qdl: synchronise device trees with linux
Synchronise device trees with linux-next next-20220708.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-07-25 16:12:00 +02:00
Marcel Ziswiler
50b229523b tbs2910: prepare to synchronise device trees with linux
As a preparatory step make sure to refer to absolute node paths where
labels were removed in Linux upstream.

This avoids the following error once synchronised:

+Error: arch/arm/dts/imx6q-tbs2910-u-boot.dtsi:3.1-7 Label or path aips1
 not found
+Error: arch/arm/dts/imx6q-tbs2910-u-boot.dtsi:11.1-5 Label or path soc
 not found

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-07-25 16:12:00 +02:00
Marcel Ziswiler
6f7db3a968 imx6: aristainetos: fix pwms property warnings
Fix the following build-time pwms property warnings:

w+arch/arm/dts/imx6dl-aristainetos2c_7.dtb: Warning (pwms_property):
 /backlight:pwms: property size (12) too small for cell size 3
w+arch/arm/dts/imx6dl-aristainetos2c_cslb_7.dtb: Warning (pwms_property):
 /backlight:pwms: property size (12) too small for cell size 3

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
2022-07-25 16:12:00 +02:00
Marcel Ziswiler
398ae1dca1 board/BuR/brppt2: fix pwms property warning
Fix the following build-time pwms property warning:

w+arch/arm/dts/imx6dl-brppt2.dtb: Warning (pwms_property):
 /backlight:pwms: property size (12) too small for cell size 3

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-07-25 16:12:00 +02:00
Fabio Estevam
05996f350d imx8mm: Sync device tree with linux-next 20220711
Sync imx8mm.dtsi device tree with linux-next 20220711.

The main motivation for doing this sync is the sha256 regression
reported by Andrey Zhizhikin [1].

The linux-next kernel has the following commit, which disables
the job ring 0 and fixes the problem:

https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=next-20220715&id=dc9c1ceb555ff661e6fc1081434600771f29657c

[1] https://lore.kernel.org/u-boot/AM6PR06MB46912207D9460CD9924F35DAA68B9@AM6PR06MB4691.eurprd06.prod.outlook.com/T/#t

Signed-off-by: Fabio Estevam <festevam@denx.de>
2022-07-25 16:12:00 +02:00
Julien Panis
169582025a arm64: mach-k3: am625_init: Probe ESM nodes
On AM62x devices, main ESM error event outputs can be routed to
MCU ESM as inputs. So, two ESM device nodes are expected in the
device tree : one for main ESM and another one for MCU ESM.
MCU ESM error output can trigger the reset logic to reset
the device when CTRLMMR_MCU_RST_CTRL:MCU_ESM_ERROR_RESET_EN_Z is
set to '0'.

Signed-off-by: Julien Panis <jpanis@baylibre.com>
2022-07-25 09:38:47 -04:00
Julien Panis
3128c890f2 arm64: dts: k3-am625-r5: Add support for ESM devices
Add main ESM and MCU ESM nodes to AM625-R5 device tree.

Signed-off-by: Julien Panis <jpanis@baylibre.com>
2022-07-25 09:38:47 -04:00
Janne Grunau
e53237aa53 arm: apple: Add initial Apple M2 support
Apple's M2 SoC very similar to the M1 and can use the same memory map.
The keyboard/trackpad on the MacBook Pro (13-inch, M2, 2022) uses
"dockchannel" as transport instead of SPI and needs a new driver.
USB, NVMe, uart, framebuffer and watchdog are working with the existing
drivers.

Signed-off-by: Janne Grunau <j@jannau.net>
Reviewed-by: Mark Kettenis <kettenis@openbsd.org>
2022-07-25 09:38:47 -04:00
Mamta Shukla
1c3a8e7753 configs: imx8mm: Define CONFIG_SYS_UBOOT_BASE for i.MX8m
The macro `CONFIG_SYS_UBOOT_BASE` is used by SPL loaders `"NOR"` and
`"XIP"` to determine the base address of u-boot.

For `"NOR"` on i.MX8MM it is the base address of QSPI0 plus the offset
of the flattened image tree blob.
Although `QSPI0_AMBA_BASE` is used to define CONFIG_SYS_UBOOT_BASE in
multiple board header files for i.MX8MM, it is not specified.

Specify offset of flattened image tree blob (needs to be set to same
value as specified in 'binman' node), base address of QSPI0 and size of
FlexSPI configuration block.

Signed-off-by: Mamta Shukla <mamta.shukla@leica-geosystems.com>
Signed-off-by: Thomas Haemmerle <thomas.haemmerle@leica-geosystems.com>
Tested-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Andrey Zhizhikin  <andrey.zhizhikin@leica-geosystems.com>
2022-07-25 15:35:35 +02:00
Mamta Shukla
de99721c35 dts: imx8mm-uboot: Add support to pack FlexSPI Header using binman
Add definition for FSPI configuration block and subsequently new offsets for
u-boot-spl and u-boot-itb for CONFIG_FSPI_HEADER option.

Signed-off-by: Mamta Shukla <mamta.shukla@leica-geosystems.com>
Signed-off-by: Thomas Haemmerle <thomas.haemmerle@leica-geosystems.com>
Tested-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Fabio Estevam <festevam@denx.de>
2022-07-25 15:35:34 +02:00
Rasmus Villemoes
5809d764a9 imx8ulp: soc.c: use rom_api_query_boot_infor() wrapper
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
2022-07-25 15:35:34 +02:00
Rasmus Villemoes
f963622f28 imx8m: soc.c: use rom_api_query_boot_infor() wrapper
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
2022-07-25 15:35:34 +02:00
Rasmus Villemoes
f8001fdd2c imx8: use ROM API wrappers in spl_imx_romapi.c
Simplify the use of the ROM API by using the wrappers that take care
of saving/restoring gd and computing the xor value. This makes the
generated code smaller and the C code easier to read.

Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
2022-07-25 15:35:34 +02:00
Rasmus Villemoes
748da8abb0 imx8: add rom api wrappers
The ROM API is thoroughly undocumented, but apparently passing the xor
of the real arguments as an extra argument is required [1]. Also, we
need to do the "save gd/restore gd" dance. These are both error-prone,
and lead to a lot of code duplication.

Since both imx8m[np] and imx8ulp SOCs have this, add a separate
translation unit which is included precisely when the new
CONFIG_IMX8_ROMAPI symbol is set, which provide convenience wrappers
that take care of computing the xor value as well as doing the gd
dance, and that thus have a more intuitive API. Subsequent patches
will make use of these to reduce boilerplate.

[1] One wonders, for example, if the check is only applied to the
lower 32 bits, or if we're implicitly relying on all 64-bit pointer
values we're passing effectively have 0 in the upper 32 bits.

Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
2022-07-25 15:35:34 +02:00