For armv8, U-Boot uses a static map defined as 'mem_map' for configuring
the MMU's page tables, done by mmu_setup.
Though this works well for simpler platforms, it makes creating runtime
carveouts by modifying the static array at runtime exceedingly complex
like in mach-snapdragon/board.c.
Creation of such carveouts are much better handled by APIs such as
mmu_change_region_attr once the page tables are configured. Usually such
carveouts are configured via the device-tree's reserved-memory node
which provides the address and size for the carveout.
Therefore this patch adds mmu_unmap_reserved_mem which acts as a wrapper
over mmu_change_region_attr, helping unmap a reserved-memory region.
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Anshul Dalal <anshuld@ti.com>
Tested-by: Wadim Egorov <w.egorov@phytec.de>
The static memory map for K3 (k3_mem_map) only maps the first DRAM bank
and therefore doesn't scale for platforms with multiple memory banks.
This patch modifies enable_caches to add mem_map_from_dram_banks which
appends all the memory banks to k3_mem_map before calling mmu_setup.
Signed-off-by: Anshul Dalal <anshuld@ti.com>
Tested-by: Wadim Egorov <w.egorov@phytec.de>
For armv8, U-Boot uses a static map defined as 'mem_map' for configuring
the MMU as part of mmu_setup.
But since the exact configuration of memory banks might not be known at
build time, many platforms such as imx9, versal2 etc. utilize
gd->bd->bi_dram to configure the static map at runtime.
Therefore this patch adds a new API mem_map_from_dram_banks that
modifies the static map in a similar way. Allowing the caller to map all
dram banks by just passing the index to last entry in their mem_map and
it's length.
Reviewed-by: Dhruva Gole <d-gole@ti.com>
Signed-off-by: Anshul Dalal <anshuld@ti.com>
Tested-by: Wadim Egorov <w.egorov@phytec.de>
In dcache_enable, currently the dcache entries are only invalidated when
the MMU is not enabled. This causes issues when dcache_enable is called
with the MMU already configured, in such cases the existing dcache
entries are not flushed which might result in un-expected behavior.
This patch invalidates the cache entries on every call of dcache_enable
before enabling dcache (by setting CR_C). This makes dcache_enable
behave similar to icache_enable as well.
Reviewed-by: Dhruva Gole <d-gole@ti.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Anshul Dalal <anshuld@ti.com>
Tested-by: Wadim Egorov <w.egorov@phytec.de>
The mmu_setup function configures the page tables based on the board
supplied mem_map struct array. It is called implicitly as part of
dcache_enable but this limits us to only be able to use APIs such as
mmu_change_region_attr only after caches are enabled.
This might lead to speculative accesses before we can unmap a region
that is marked as cacheable in the static memory map.
Therefore this patch exports the mmu_setup function in mmu.h allowing
users to have more control over when the mmu is configured.
For K3 specifically this allows for the following configuration sequence
as part of enable_caches:
static mem_map fixups (TODO) -> mmu_setup -> carveouts using
mmu_change_region_attr (TODO) -> icache/dcache enable
Reviewed-by: Dhruva Gole <d-gole@ti.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Anshul Dalal <anshuld@ti.com>
Tested-by: Wadim Egorov <w.egorov@phytec.de>
U-Boot's provided enable_caches enforces the following sequence:
icache_enable -> mmu_setup (as part of dcache_enable) -> dcache_enable
Whereas for K3 devices, we would like to add entries to the provided
static array (k3_mem_map) as per gd->bd->bi_dram and then call mmu_setup
to configure the MMU but also create carveouts for TFA/TEE before we
enable caches to prevent speculative accesses to the region. Thus the
following desired sequence:
add dram banks -> mmu_setup -> carveout TFA/TEE -> icache/dcache enable
Therefore this patch adds K3's own implementation of enable_cache for
ARM64, allowing for greater control over the cache enablement sequence.
Reviewed-by: Dhruva Gole <d-gole@ti.com>
Signed-off-by: Anshul Dalal <anshuld@ti.com>
Tested-by: Wadim Egorov <w.egorov@phytec.de>
The K3 family of SoCs encompasses a wide variety of devices with varying
DDR configurations and memory carveout requirements, the current static
memory map provides basic support for TI EVMs but does not scale well
for newer platforms (such as AM62SiP with 512MiB of RAM).
Therefore this patch replaces the existing memory map with a minimal
one, that could be more easily modified at runtime.
Reviewed-by: Dhruva Gole <d-gole@ti.com>
Signed-off-by: Anshul Dalal <anshuld@ti.com>
Tested-by: Wadim Egorov <w.egorov@phytec.de>
First set of u-boot-at91 features for the 2026.01 cycle:
This small fixes set includes a change on clocks register value and a
fix for the sam9x60ek default timer.
This reverts commit a040578d82.
Based on feedback other SOCs (for example Star64) are using driver in non
DMA mode which is causing issues that's why revert this patch.
cdns,is-dma should be removed differently.
Signed-off-by: Michal Simek <michal.simek@amd.com>
Reported-by: E Shattow <e@freeshell.de>
As requirement of CR side, QSPI Flash usage via RPC driver shall
be disabled and leaving the control of this module to CR side.
Perform DT modification to disable the RPC SPI.
Signed-off-by: Nguyen Tran <nguyen.tran.pz@bp.renesas.com>
Reviewed-by: Khanh Le <khanh.le.xr@renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
[Marek: Do not modify defconfig, modify the DT instead, this way
the RPC SPI can be enabled without recompiling the U-Boot
itself. Update commit message accordingly.]
Commit 63da3a795e ("ARM: dts: renesas: Drop R8A779H0 V4M DTs with OF_UPSTREAM counterparts")
removed unnecessary V4H DTs from arch/arm/dts , but in the process
also incorrectly dropped the -u-boot.dtsi U-Boot extras. Reinstate
those extras.
Due to DT file name change for the R8A779H0 V4M Gray Hawk, update
the r8a779h0-gray-hawk-u-boot.dtsi filename to newly matching
r8a779h0-gray-hawk-single-u-boot.dtsi .
Align r8a779h0-u-boot.dtsi with clean up commits
1487c34efa ("arm64: dts: renesas: Deduplicate extalr_clk bootph-all")
dd8f57ed2f ("ARM: dts: renesas: Drop most of bootph-* tags")
Fixes: 63da3a795e ("ARM: dts: renesas: Drop R8A779H0 V4M DTs with OF_UPSTREAM counterparts")
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
U-Boot currently enables the UPLL during boot, which triggers a udelay()
call that depends on the system tick timer. Since no explicit tick source
is defined in the device tree, boot stalls on this board.
Define the "tick-timer" property under /chosen and point it to the PIT
node, ensuring U-Boot uses the PIT as the tick source.
Fixes: ac30d90f33 ("clk: Ensure the parent clocks are enabled while reparenting")
Signed-off-by: Dharma Balasubiramani <dharma.b@microchip.com>
This partly fix commit 726404a66c ("airoha: rework RAM size handling
to support multiple RAM size")
The function get_effective_memsize() do not see non-global defines
of CFG_MAX_MEM_MAPPED, so the effective memory size will not be changed.
Fix the issue by putting definition of CFG_MAX_MEM_MAPPED to the proper
place.
Fixes: 726404a66c ("airoha: rework RAM size handling to support multiple RAM size")
Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>
Enable CONFIG_OF_UPSTREAM to receive automatic
device tree updates for the Verdin AM62P.
Remove the now-obsolete device tree files:
- k3-am62p-verdin.dtsi
- k3-am62p-verdin-dev.dtsi
- k3-am62p-verdin-wifi.dtsi
- k3-am62p5-verdin-wifi-dev.dts
Signed-off-by: Ernest Van Hoecke <ernest.vanhoecke@toradex.com>
Given how these options are used in the code, it doesn't make sense to
enable them for COMPILE_TEST. Make them depend on !COMPILE_TEST.
Signed-off-by: Tom Rini <trini@konsulko.com>
Convert the PXA1908 platform and its coreprimevelte board to OF_UPSTREAM
and enable the few drivers found in the upstream DTS.
Signed-off-by: Duje Mihanović <duje@dujemihanovic.xyz>
When I migrated this to Kconfig in commit 68e54040cc ("sandbox: Move
CONFIG_IO_TRACE to Kconfig") I didn't look hard enough for other
details. As explained in the README, this is valid for ARM too. So start
by making this be a prompted question and CMD_IOTRACE depend on IO_TRACE
being enabled. Next, migrate the information out of README and in to
the appropriate help text for existing options in Kconfig. Finally, make
this option be default y on SANDBOX but not selected as it's valid to
build without it.
Signed-off-by: Tom Rini <trini@konsulko.com>
The way that the current readX/writeX macros are implemented on sandbox
means that when IO_TRACE is not enabled some code will throw up
incorrect warnings due to how sandbox_{read,write} is implemented. We
instead need to do the "uX __v; __v = sandbox..(..v); __v;" trick that
ARM does.
Signed-off-by: Tom Rini <trini@konsulko.com>
We have had an implementation of the generic timer found in many v7m
chips since 2017, but as part of the Kconfig migration forgot to allow
it as it wasn't being used at the time. Allow it to be built.
Signed-off-by: Tom Rini <trini@konsulko.com>
Enable CONFIG_OF_UPSTREAM to receive automatic device tree updates for
the Toradex SMARC iMX8MP.
Remove the now obsolete device tree files:
- imx8mp-toradex-smarc-dev.dts
- imx8mp-toradex-smarc.dtsi
Signed-off-by: Ernest Van Hoecke <ernest.vanhoecke@toradex.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
DTC is generating warnings about missing port like:
DTOVL arch/arm/dts/zynqmp-smk-k24-revA-sck-kv-g-revB.dtb
arch/arm/dts/zynqmp-sck-kv-g-revA.dtbo: Warning (graph_port):
/fragment@5/__overlay__: graph port node name should be 'port'
...
That's why change description and add it directly to dpsub mode to contain
full description with also port.
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/576630cc9696e21bef15bd1f0ca35e396adc4eca.1758529693.git.michal.simek@amd.com
On a few zcu106 boards USB devices (Dell MS116 USB Optical Mouse, Dell USB
Entry Keyboard) are not enumerated on linux boot due to commit
'b8745e7eb488 ("arm64: zynqmp: Fix usb node drive strength and slew
rate")'.
To fix it as a workaround revert to working version and then investigate
at board level why drive strength from 12mA to 4mA and slew from fast to
slow is not working.
Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/14d3408cf547ac188c07c10abb0ddfaac9d915c4.1756803198.git.michal.simek@amd.com
In order for cmd/cache.c to link we need to add dummy icache functions
to mirror the dummy dcache functions as well as another dcache flush
function.
Signed-off-by: Tom Rini <trini@konsulko.com>
Add initial support for AM62D2-EVM, Kconfig entries for binman, SPL,
base DTS files for u-boot and SPL, HS-SE and HS-FS support and initial
configs with SD-MMC, UART, eMMC and OSPI boot providing a baseline for
further enablement.
Also add labels and targets to AM62A-SK binman to enable AM62D2-EVM
builds to reuse existing binman infrastructure.
Technical Reference Manual - https://www.ti.com/lit/pdf/sprujd4
Schematics Link - https://www.ti.com/lit/zip/sprcal5
Signed-off-by: Paresh Bhagat <p-bhagat@ti.com>
Linux kernel .get_temp() callback reports values in millicelsius,
U-Boot currently reports them in celsius. Align the two and report
in millicelsius. Update drivers accordingly. Update callsites that
use thermal_get_temp() as well.
The 'temperature' command now reports temperature in millicelsius
as well, with additional accuracy. This changes command line ABI
slightly.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Quentin Schulz <quentin.schulz@cherry.de>
Reviewed-by: David Zang <davidzangcs@gmail.com>
[trini: Update test/cmd/temperature.c]
Signed-off-by: Tom Rini <trini@konsulko.com>
As of commit f98d812e53 ("power: regulator: Add vin-supply for GPIO
and Fixed regulators") we must ensure the parent nodes of a regulator
are present in DT if they are described in the vin-supply property
For the am65x reference board the DRAM chips are fed by the 3v3 rail
which is fed by the main 12v rail. Add the bootph properties to these DT
nodes to prevent them from being pruned during the SPL build so we can
enable power to the DRAM chips
Signed-off-by: Bryan Brattlof <bb@ti.com>
Tested-by: Nishanth Menon <nm@ti.com>
There are multiple version of the same reference board with different
RAM size and it's not enough to base the RAM size entirely from DT. To
better support it use the get_ram_size way to scan for the actual RAM
size of Airoha SoC and increase the size of the memory map.
Also rework the memory map to account for 2 memory map. The first one of
2GB for 32bit DMA and for safe usage of U-Boot. The second one for the
rest of the RAM since up to 8GB are supported.
Reviewed-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Enable everything that is required to load via USB. The SPL needs
SDP support so it can load the U-Boot proper image via USB after
it has been loaded via serial loader mode of the i.MX.
This way we can use the uuu tool for loading SPL and U-Boot
proper like this:
uuu -brun flash.bin
Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
