commit e27bddff4b ("imx8m: Restrict usable memory to space below 4G boundary")
tried to adjust the usable memory limits on a 4GB boundary.
ram_top is described as 'top address of RAM used by U-Boot' and we want
to preserve that. This is defined as a phys_addr_t and unfortunately
its size differs across architectures. This has lead us to a weird
state where 32bit boards define it 'SZ_4GB - 1' and 64bit boards as
'SZ_4GB' unless it was otherwise defined.
With some recent LMB changes and specifically
commit 1a48b0be93 ("lmb: prohibit allocations above ram_top even from same bank")
the board fails to boot properly although the commit above is correct
since it's making sure that no memory above ram_top is usable -- but
added to our memory map so EFI can hand it over to the booted OS.
The reason for that is that during the LMB init we add all usable memory
in lmb_add_memory(). In that function any memory above ram_top gets added
as 'reserved' for LMB. With the current values tha's set to 0xFFFF_FFFF
for this board. Later LMB is trying to protect the memory area U-Boot lives
in with lmb_reserve_common(). The latter fails though since it tries to
add U-Boot top (which is 0xFFFF_FFFF as well) to U-Boot 'bottom'. This call
will fail since 1 byte of that memory range is already marked as 'reserved'.
Since we are close to the release, LMB seems to assume that the address
is rounded up and is the 'next address' and so does parsing and adding
memory ranges from DT files, bump the ram_top of the board by 1byte.
In the long run we should change all of the above and have 32b and 64b
platforms define ram_top identically.
Add a Fixes tag although the commit is correct, so people can figure out
the broken scenarios in the future.
Suggested-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Fixes: commit 1a48b0be93 ("lmb: prohibit allocations above ram_top even from same bank")
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Reported-by: João Paulo Gonçalves <jpaulo.silvagoncalves@gmail.com>
Closes: https://lore.kernel.org/all/20241216114231.qpfwug3zfqkxn3d5@joaog-nb.corp.toradex.com/
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Fixes: 74f88b7221 ("ARM: imx: imx8m: Fix board_get_usable_ram_top()")
Working with HAB on the i.MX8MP we've encountered a case where a board
that successfully authenticates u-boot when booting Linux subsequently
fails to properly bring up the RTC.
The RTC registers live in the low-power block of the Secure Non-Volatile
Storage (SNVS) block.
The root cause of the error has been traced to the HAB handing off the
SNVS-RTC in a state where HPCOMR::NPSWA_EN = 0 in other words where the
Non-Privileged Software Access Enable bit is zero.
Configure SNVS to allow unpriv access to SNVS LP for imx8m and imx8mp.
This commit generalizes 723f8359c1 ("imx: mx7: snvs: Add an SNVS init
routine") to also be used on i.MX8M SoCs, and was testeed on i.MX8MP.
Signed-off-by: Ian Ray <ian.ray@gehealthcare.com>
The decision on whether HAB is enabled is solely based on the SEC_CONFIG
fuse. The HAB FIELD_RETURN feature is able to permanently disable HAB on
a CPU, after which it is able to boot unsigned firmware. U-Boot however
does not take into account the FIELD_RETURN mode, and refuses to boot
unsigned software when the feature is enabled.
Also take the FIELD_RETURN fuse into account when deciding whether HAB
is enabled. When The FIELD_RETURN fuse is blown, HAB is not enabled.
Tested on i.MX8M Mini, i.MX8M Plus, i.MX8M Nano and i.MX6ULL
Signed-off-by: Paul Geurts <paul.geurts@prodrive-technologies.com>
The imx_sec_config_fuse_t structure is not specific to the sec_config
fuse, but can be used for all fuse words.
Rename the structure to a more generic name to be reused for other
fuses.
Signed-off-by: Paul Geurts <paul.geurts@prodrive-technologies.com>
Simon Glass <sjg@chromium.org> says:
When the SPL build-phase was first created it was designed to solve a
particular problem (the need to init SDRAM so that U-Boot proper could
be loaded). It has since expanded to become an important part of U-Boot,
with three phases now present: TPL, VPL and SPL
Due to this history, the term 'SPL' is used to mean both a particular
phase (the one before U-Boot proper) and all the non-proper phases.
This has become confusing.
For a similar reason CONFIG_SPL_BUILD is set to 'y' for all 'SPL'
phases, not just SPL. So code which can only be compiled for actual SPL,
for example, must use something like this:
#if defined(CONFIG_SPL_BUILD) && !defined(CONFIG_TPL_BUILD)
In Makefiles we have similar issues. SPL_ has been used as a variable
which expands to either SPL_ or nothing, to chose between options like
CONFIG_BLK and CONFIG_SPL_BLK. When TPL appeared, a new SPL_TPL variable
was created which expanded to 'SPL_', 'TPL_' or nothing. Later it was
updated to support 'VPL_' as well.
This series starts a change in terminology and usage to resolve the
above issues:
- The word 'xPL' is used instead of 'SPL' to mean a non-proper build
- A new CONFIG_XPL_BUILD define indicates that the current build is an
'xPL' build
- The existing CONFIG_SPL_BUILD is changed to mean SPL; it is not now
defined for TPL and VPL phases
- The existing SPL_ Makefile variable is renamed to SPL_
- The existing SPL_TPL Makefile variable is renamed to PHASE_
It should be noted that xpl_phase() can generally be used instead of
the above CONFIGs without a code-space or run-time penalty.
This series does not attempt to convert all of U-Boot to use this new
terminology but it makes a start. In particular, renaming spl.h and
common/spl seems like a bridge too far at this point.
The series is fully bisectable. It has also been checked to ensure there
are no code-size changes on any commit.
With the introduction of downstream Linux 6.6, the iMX8MP VPU block
control node in DTS was renamed "blk-ctl@38330000" and will not match
the ones found in `node_path_imx8mp` resulting in the node not being
disabled on the VPU-less variants.
Add an extra node_path entry for imx8mp VPU block control that match
with downstream Linux.
Signed-off-by: Vitor Soares <vitor.soares@toradex.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
i.MX8M and i.MX9 have duplicated fixup_thermal_trips, so move it
to arch/arm/mach-imx/fdt.c to avoid duplicated code.
The critial temperature point for i.MX9 set to "maxc - 5" back to give
some margin.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
disable_cpu_nodes could be reused by i.MX9, so move disable_cpu_nodes
out from mach-imx/imx8m/soc.c to mach-imx/fdt.c and update
disable_cpu_nodes to make it easy to support different socs.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
i.MX8M use PPI for PMU interrupts, there is no reason to update
interrupt-affinity for PMU even interrupt-affinity was wrongly added
to device tree before.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Enable MMU and caches very early on in the boot process on i.MX8M
in U-Boot proper. This allows board_init_f to run with icache and
dcache enabled, which saves some 700 milliseconds of boot time on
i.MX8M Plus based device.
The 'bootstage report' output is below:
Before:
```
Timer summary in microseconds (8 records):
Mark Elapsed Stage
0 0 reset
961,363 961,363 board_init_f
1,818,874 857,511 board_init_r
1,921,474 102,600 eth_common_init
2,013,702 92,228 eth_initialize
2,015,238 1,536 main_loop
Accumulated time:
32,775 dm_r
289,165 dm_f
```
After:
```
Timer summary in microseconds (8 records):
Mark Elapsed Stage
0 0 reset
989,466 989,466 board_init_f
1,179,100 189,634 board_init_r
1,281,456 102,356 eth_common_init
1,373,857 92,401 eth_initialize
1,375,396 1,539 main_loop
Accumulated time:
12,630 dm_f
32,635 dm_r
```
Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Make the raw-mode options depend on SPL_SYS_MMCSD_RAW_MODE in a more
direct way. This makes it easier to understand the options with
'make menuconfig'.
There are three different ways of specifying the offset:
- sector offset
- partition number
- partition type
So make these a choice, so it is more obvious what is going on.
Update existing boards to enable SPL_SYS_MMCSD_RAW_MODE where needed.
Reviewed-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Quentin Schulz <quentin.schulz@cherry.de>
Signed-off-by: Simon Glass <sjg@chromium.org>
As part of bringing the master branch back in to next, we need to allow
for all of these changes to exist here.
Reported-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Tom Rini <trini@konsulko.com>
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay
Ethernet"' I failed to notice that b4 noticed it was based on next and
so took that as the base commit and merged that part of next to master.
This reverts commit c8ffd1356d, reversing
changes made to 2ee6f3a5f7.
Reported-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Tom Rini <trini@konsulko.com>
Remove <common.h> from all mach-imx, CPU specific sub-directories and
include/asm/arch-mx* files and when needed add missing include files
directly.
Acked-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
On imx8m[m|p|q].dtsi, upstream Linux uses different names for NPU/VPU
IP block nodes. It leads variants without such HW block having it
enabled by default.
This patch adds the upstream Linux node's paths to the disable list while
keep the compatibility with downstream Linux.
Signed-off-by: Vitor Soares <vitor.soares@toradex.com>
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Implement the 'getprisec' subcommand of 'bmode' command for i.MX8M by
reading out the ROM log events. This event is set by the BootROM if it
switched to the secondary copy due to primary copy being corrupted.
Signed-off-by: Fedor Ross <fedor.ross@ifm.com>
Signed-off-by: Marek Vasut <marex@denx.de>
In case of a secondary image boot from the user area of an eMMC device,
the correct offset must be calculated. The offset is fused in the fuse
IMG_CNTN_SET1_OFFSET of the i.MX8M Nano and Plus. The calculation of the
offset is described in the reference manual (IMX8MNRM Rev. 2, 07/2022
and IMX8MPRM Rev. 1, 06/2021):
The fuse IMG_CNTN_SET1_OFFSET (0x490[22:19]) is defined as follows:
* Secondary boot is disabled if fuse value is bigger than 10,
n = fuse value bigger than 10.
* n == 0: Offset = 4MB
* n == 2: Offset = 1MB
* Others & n <= 10 : Offset = 1MB*2^n
Signed-off-by: Fedor Ross <fedor.ross@ifm.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Factor out parsing of ROM log in function spl_mmc_emmc_boot_partition().
This can be helpful to detect a secondary image boot without fiddling
around with MMC partitions. This way for example, U-Boot is able to
detect a secondary image boot and can enter some fallback scenario like
starting a recovery mode.
Signed-off-by: Fedor Ross <fedor.ross@ifm.com>
Signed-off-by: Marek Vasut <marex@denx.de>
If optee is detected configure it in the Linux device-tree:
- add /firmware/optee node
- add /reserved-memory nodes for optee_core and optee_shm
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
If dram_init_banksize() is called from SPL, the rom_pointer, at that
point, is not correctly initialized. This causes wrong calculation of
DRAM start and size in dram_init_banksize(). The issue became apparent
only in Falcon Mode. Added an extra condition to prevent using
rom_pointer in SPL.
Signed-off-by: Elena Popa <elena.popa@nxp.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Reviewed-by: Fabio Estevam <festevam@denx.de>
Very few of the existing event-spy records use the arguments they are
passed. Update them to use a simple spy instead, to simplify the code.
Where an adaptor function is currently used, remove it where possible.
Signed-off-by: Simon Glass <sjg@chromium.org>
board_get_usable_ram_top() returns a physical address that is stored in
gd->ram_top. The return type of the function should be phys_addr_t like the
current type of gd->ram_top.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Getting
Found /vpu_g1@38300000 node
Modify /vpu_g1@38300000:status disabled
Found /vpu_g2@38310000 node
Modify /vpu_g2@38310000:status disabled
etc. on the console on every boot is needlessly verbose. Demote the
"Found ..." lines to debug(), which is consistent with other instances
in soc.c.
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Stop polluting the architecture directory with driver specific code,
move it into driver where it should be. Split the code slightly so
the MX8MM/MX8MN fuse readout and programming and MX8MP fuse readout
and programming are in their separate functions, and called in case
of matching SoC.
Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Andrejs Cainikovs <andrejs.cainikovs@toradex.com>
It seems like the ROM log events for the iMX8M are not fully covered by
AN12853 i.MX ROMs Log Events, Rev. 0, May 2020. On iMX8M the ROM event
ID 0x82 seems to use parameter0 which stops the parsing because the end
of list is detected too early.
This patch adds ROM event ID 0x82 and skips the next word if ID 0x82 is
parsed.
Fixes: a5ee05cf71 ("ARM: imx: Pick correct eMMC boot partition from ROM log")
Signed-off-by: Fedor Ross <fedor.ross@ifm.com>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
The original function was only called once, before relocation. The new
one is called again after relocation. This was not the intent of the
original call. Fix this by renaming and updating the calling logic.
With this, chromebook_link64 makes it through SPL.
Fixes: 7fe32b3442 ("event: Convert arch_cpu_init_dm() to use events")
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
It doesn't seem appropriate for arch/SOC to use a board-level
functionality (CONFIG_OF_BOARD_FIXUP), because this prevents boards
that need to do FDT fixup from using that feature.
Also, this code is completely dead and useless (from comments by
Rasmus Villemoes on the mailing list):
- No in-tree imx8m-based board seems to set CONFIG_OF_BOARD_FIXUP
- The nodes which that function wants to disable don't even exist in
the U-Boot copy of imx8mp.dtsi.
This code was introduced in commit 35bb60787b. It seems to be some
random import of code from downstream NXP U-Boot, with a commit
message that makes no sense in upstream context.
Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Acked-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Fabio Estevam <festevam@denx.de>
Avoid a buffer overflow if assigned-clock-rates has less than two elements.
Fixes: 98bcdf1635 ("imx8mn: Add low drive mode support for DDR4/LPDDR4 EVK")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
In case U-Boot is the PSCI provider, it is necessary to correctly
program CSU and TZASC registers. Those are poorly documented, so
push in the correct values.
Signed-off-by: Marek Vasut <marex@denx.de>
In case U-Boot is a PSCI provider, map RAM explicitly as NS,
otherwise secondary cores crash with SError when attempting
to access RAM mapped as secure in EL2.
Signed-off-by: Marek Vasut <marex@denx.de>
The ROM pointers are in fact populated by the ATF BL31 blob, in case
U-Boot itself if the PSCI provider, there is no ATF BL31 blob, hence
ignore the ROM pointers.
Signed-off-by: Marek Vasut <marex@denx.de>
Commit 56c2dbdaba ("imx: bootaux: cleanup code") introduces the
following LTO related warning:
"
arch/arm/mach-imx/imx_bootaux.c:24:31: warning: type of ‘hostmap’ does not match original declaration [-Wlto-type-mismatch]
24 | const __weak struct rproc_att hostmap[] = { };
| ^
arch/arm/mach-imx/imx8m/soc.c:1590:24: note: array types have different bounds
1590 | const struct rproc_att hostmap[] = {
| ^
arch/arm/mach-imx/imx8m/soc.c:1590:24: note: ‘hostmap’ was previously declared here
../aarch64-linux-gnu/bin/ld: warning: u-boot has a LOAD segment with RWX permissions
"
This is because the weak empty array of structures "hostmap" is eventually
replaced by non-empty array of structures with different number of elements.
Fix this by avoiding weak variable size array, instead use a weak function
which returns single pointer to the array.
Fixes: 56c2dbdaba ("imx: bootaux: cleanup code")
Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
The rest of the unmigrated CONFIG symbols in the CONFIG_SYS_SDRAM
namespace do not easily transition to Kconfig. In many cases they likely
should come from the device tree instead. Move these out of CONFIG
namespace and in to CFG namespace.
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Commit 37dc958947 ("global_data.h: Change ram_top type to phys_addr_t")
changed type of ram_top member from ulong to phys_addr_t but did not
changed types in board_get_usable_ram_top() function which returns value
for ram_top.
So change ulong to phys_addr_t type also in board_get_usable_ram_top()
signature and implementations.
Fixes: 37dc958947 ("global_data.h: Change ram_top type to phys_addr_t")
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
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>
Fixup thermal trips in Linux device tree according to SoC thermal
grade.
Signed-off-by: Andrejs Cainikovs <andrejs.cainikovs@toradex.com>
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Tested-by: Adam Ford <aford173@gmail.com>
If probing caam_jr returns failure, the variable "dev" will not be
initialized, so we can't use dev->name for the error print.
Otherwise it will cause crash.
Signed-off-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Gaurav Jain <gaurav.jain@nxp.com>
All i.MX8M needs TZASC ID SWAP set and locked, no need the check to
waste cpu cycles.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Andrey Zhizhikin <andrey.zhizhikin@leica-geosystems.com>
When trying to boot via USB on i.MX8MN it is necessary to specify
the U-Boot environment location, otherwise the boot process simply
hangs.
Specify the environment location when booting from USB.
Tested on a imx8mn-evk.
Suggested-by: Michael Nazzareno Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Fabio Estevam <festevam@denx.de>
Tested-By: Tim Harvey <tharvey@gateworks.com>
Implement arch_env_get_location() instead of env_get_location(), so that
the env_get_location() can be implemented on board level and override the
arch_env_get_location() architecture defaults.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Adam Ford <aford173@gmail.com>
Cc: Fabio Estevam <festevam@denx.de>
Cc: Marek Behún <marek.behun@nic.cz>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Tim Harvey <tharvey@gateworks.com>
Cc: Tom Rini <trini@konsulko.com>
Cc: Tommaso Merciai <tomm.merciai@gmail.com>
Cc: Vladimir Oltean <vladimir.oltean@nxp.com>
The 4 GiB boundary is at 0xffffffff+1 , not at 0x80000000, fix this.
The PHYS_SDRAM of i.MX8M is at 0x40000000 , so to restrict ram_top
below 4 GiB, the ram_top has to be set to 0xffffffff as it is not
an offset from the start of PHYS_SDRAM, but rather a physical address
marking the topmost allowed DRAM address.
Fixes: e27bddff4b ("imx8m: Restrict usable memory to space below 4G boundary")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <festevam@denx.de>
Cc: Frieder Schrempf <frieder.schrempf@kontron.de>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
This is the only place where i.MX8M code does SMCCC call, remove it.
The output has little value as it prints some part of commit ID, and
worse, if there is no SMC handler installed, the code outright hangs
or crashes the system.
By removing this one instance of SMCCC call, U-Boot no longer depends
on SMC handlers and can boot without hanging in any case. If there is
a need to dump this commit ID, use CMD_SMC instead and do 'smc' call
from U-Boot shell or scripts instead of hard-coding SMCCC dependency
into architecture code. This particular code can be replaced by:
=> smc 0xc2000003 0 0 0 0 0 0
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Enable instruction cache early on to speed up the boot process on i.MX8M.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
