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2026-03-04treewide: Remove Timesys from ADI ADSP maintenancePhilip Molloy
After years of developing the ADI ADSP platform, Timesys was purchased by another company and is no longer contracted to maintain the platform. Signed-off-by: Philip Molloy <philip.molloy@analog.com> Reviewed-by: Greg Malysa <malysagreg@gmail.com>
2026-02-03sunxi: clock: H6: add NAND controller clock registersRichard Genoud
Add missing NAND controller-related clock registers The NAND controller on H6/H616 uses one clock for its internal logic (NAND0_CLK) and one clock for ECC engine (NAND1_CLK) in addition to AHB and MBUS clocks. As NAND{0,1}_CLKs and MBUS_GATE are missing, add them. The bit locations are from H616/H6 User Manual. Signed-off-by: Richard Genoud <richard.genoud@bootlin.com> Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
2026-02-03mtd: rawnand: sunxi: remove usage of struct sunxi_ccm_regRichard Genoud
The sunxi_ccm_reg is legacy, drop its usage from nand related code For that, CCU_NAND0_CLK_CFG and CCU_AHB_GATE1 are added to the clock files when missing. And clock code in sunxi_nand{,_spl}.c and board.c are changed to use the new scheme. Moreover, drop AHB_DIV_1 in favor of the more readable CCM_NAND_CTRL_M/N Suggested-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Richard Genoud <richard.genoud@bootlin.com> Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
2026-01-25sunxi: dram: detect non-power-of-2 sized DRAM chipsAndre Przywara
Some boards feature an "odd" DRAM size, where the total RAM is 1.5GB or 3GB. Our existing DRAM size detection routines can only detect power-of-2 sized configuration, and on those boards the DRAM size is overestimated, so this typically breaks the boot quite early. There doesn't seem to be an easy explicit way to detect those odd-sized chips, but we can test whether the later part of the memory behaves like memory, by verifying that a written pattern can be read back. Experiments show that there is no aliasing effect here, as all locations in the unimplemented range always return some fixed pattern, and cannot be changed. Also so far all those boards use a factor of 3 of some lower power-of-2 number, or 3/4th of some higher number. The size detection routine discovers the higher number, so we can check for some memory cells beyond 75% of the detected size to be legit. Add a routine the inverts all bits at a given location in memory, and reads that back to prove that the new value was stored. Then test the memory cell at exactly 3/4th of the detected size, and cap the size of the memory to 75% when this test fails. For good measure also make sure that memory just below the assumed memory end really works. This enables boards which ship with such odd memory sizes. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
2026-01-17misc: ele_api: Add Voltage change start and finish APIsYe Li
On GDET enabled part, need to call voltage change start and finish APIs when adjust the voltage more than 100mv. Otherwise GDET will be triggered and system is reset 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>
2026-01-16arm: mediatek: remove extra gpio headerDavid Lechner
Remove empty gpio.h header file and CONFIG_GPIO_EXTRA_HEADER on ARCH_MEDIATEK. There is no reason to have these since the header doesn't contain anything. Signed-off-by: David Lechner <dlechner@baylibre.com> Reviewed-by: Quentin Schulz <quentin.schulz@cherry.de>
2025-12-19Merge tag 'u-boot-amlogic-next-20251219' of ↵Tom Rini
https://source.denx.de/u-boot/custodians/u-boot-amlogic into next - Add u-boot SPL support for GX SoCs - meson_gx_mmc: reduce maximum frequency - Add support for EFI capsule updates on all Amlogic boards
2025-12-14rockchip: sdram: Add rockchip_sdram_type() helperJonas Karlman
Add a helper function based on rockchip_sdram_size() that return what DRAM type is used on current running board. Signed-off-by: Jonas Karlman <jonas@kwiboo.se> Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2025-12-11arm: meson: add support for EFI capsule updatesFerass El Hafidi
Previously, few Amlogic devices supported EFI capsule updates. Generally only the Libre Computer ones with SPI flash supported it, thanks to board-specific code. This commit commonises capsule update support across supported Amlogic boards. Similar to Qualcomm's support for it, the dfu string and firmware name is automatically generated at runtime depending on which device we are booted from. Right now this supports flashing to the eMMC/SD and SPI flash. As usual, the capsule UUID is automatically generated. You can get it by enabling CONFIG_CMD_EFIDEBUG and running: => efidebug capsule esrt ======================================== ESRT: fw_resource_count=1 ESRT: fw_resource_count_max=1 ESRT: fw_resource_version=1 [entry 0]============================== ESRT: fw_class=796180D4-AAB2-50F1-B16A-53DFF9CA89B2 ESRT: fw_type=unknown ESRT: fw_version=0 ESRT: lowest_supported_fw_version=0 ESRT: capsule_flags=0 ESRT: last_attempt_version=0 ESRT: last_attempt_status=success ======================================== Reviewed-by: Evgeny Bachinin <EABachinin@salutedevices.com> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Signed-off-by: Ferass El Hafidi <funderscore@postmarketos.org> Link: https://patch.msgid.link/20251211-meson-capsule-v4-1-59f126ba4115@postmarketos.org Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
2025-12-11arm: meson: spl: add support for SPL DRAM initFerass El Hafidi
Supports both GXBB and GXL SoCs. Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Signed-off-by: Ferass El Hafidi <funderscore@postmarketos.org> Link: https://patch.msgid.link/20251126-spl-gx-v5-5-6cbffb2451ca@postmarketos.org Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
2025-12-11arm: meson: initial u-boot SPL support for GX SoCsFerass El Hafidi
Add initial boilerplate for U-Boot SPL support on Amlogic. Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Signed-off-by: Ferass El Hafidi <funderscore@postmarketos.org> Link: https://patch.msgid.link/20251126-spl-gx-v5-4-6cbffb2451ca@postmarketos.org Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
2025-12-11mmc: meson_gx_mmc: add minimal non-DM driverFerass El Hafidi
Add a minimal non-DM MMC driver for use in size-constrained environments. Signed-off-by: Ferass El Hafidi <funderscore@postmarketos.org> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://patch.msgid.link/20251126-spl-gx-v5-2-6cbffb2451ca@postmarketos.org Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
2025-11-25imx91: fix pinmux macros for ENET1_TD3 and I2C2_SCLFrancesco Valla
Fix macros for the GPIO function for two pads (ENET1_TD3 and I2C2_SCL), aligning them to the functions specified in the datasheet. Fixes: a9d562daa3c3 ("imx: Add iMX91 support") Suggested-by: Javier Viguera <javier.viguera@digi.com> Signed-off-by: Francesco Valla <francesco@valla.it> Reviewed-by: Fabio Estevam <festevam@gmail.com>
2025-11-07Merge patch series "arm: airoha: add support for en7523 based boards"Tom Rini
Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu> says: This patch series adds basic support for the boards based on Airoha EN7523/EN7529/EN7562 SoCs. Due to ATF restrictions these boards are able to run 32-bit OS only. This patch series adds support for the following hardware: * console UART * ethernet controller/switch * spinand flash (in non-dma mode) The following issues may be expected: * Extra slow UBI attaching in U-Boot (up to 20 sec with fastmap enabled). This is caused by the lack of DMA support in the U-Boot airoha-snfi driver. * Linux airoha-snfi driver in some cases might damage you flash data (see: https://lore.kernel.org/lkml/20251012121707.2296160-15-mikhail.kshevetskiy@iopsys.eu/) * Latest linux kernel is recommended to properly support flashes with more than one plane per lun (see: https://lore.kernel.org/lkml/20251012121707.2296160-7-mikhail.kshevetskiy@iopsys.eu/) * It's NOT recommended to use flashes working in continuous mode because U-Boot airoha-snfi driver does not support such flashes properly. The patches was tested on the board: - SoC: Airoha EN7562 - RAM: 512 MB - SPI NAND: 4 Gbit, made by Toshiba - Linux boot: was NOT tested The U-Boot was chain-loaded from the running U-Boot. Airoha ATF-2.3 does not allow easily chain-loading of U-Boot from U-Boot, so a special FIT image (mimic linux kernel) was created 1) Create u-boot.its file with the following contents: === cut here === /dts-v1/; / { description = "ARM OpenWrt FIT (Flattened Image Tree)"; #address-cells = <1>; images { u-boot-ram { description = "OpenWrt U-Boot RAM image"; data = /incbin/("u-boot.bin.lzma"); type = "kernel"; arch = "arm"; os = "linux"; compression = "lzma"; load = <0x81e00000>; entry = <0x81e00000>; hash@1 { algo = "crc32"; }; hash@2 { algo = "sha1"; }; }; fdt-1 { description = "OpenWrt device tree blob"; data = /incbin/("dts/upstream/src/arm/airoha/en7523-evb.dtb"); type = "flat_dt"; arch = "arm"; compression = "none"; hash@1 { algo = "crc32"; }; hash@2 { algo = "sha1"; }; }; }; configurations { default = "config-ram-uboot"; config-ram-uboot { description = "OpenWrt RAM U-Boot"; kernel = "u-boot-ram"; fdt = "fdt-1"; }; }; }; ================== 2) Create u-boot.itb image to chain-load new u-boot from the old one lzma_alone e u-boot.bin u-boot.bin.lzma mkimage -f u-boot.its u-boot.itb 3) Load new u-boot from the old one U-Boot> tftpboot u-boot.itb && bootm Link: https://lore.kernel.org/r/20251101004503.2379529-1-mikhail.kshevetskiy@iopsys.eu
2025-11-07arm: airoha: introduce EN7523 helpers to get SCU and CHIP_SCU regmapsMikhail Kshevetskiy
We need access SCU and CHIP_SCU regmaps in several places (clk-airoha, reset-airoha, airoha_eth). Unfortunately these regmaps can't be easily retrieved with a common code, because of different Airoha SoCs uses a different dts structure. To make life easy we can write a commonly named SoC specific helpers for these tasks. This patch implements helpers for Airoha EN7523 SoC. Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>
2025-11-07arm: airoha: introduce AN7581 helpers to get SCU and CHIP_SCU regmapsMikhail Kshevetskiy
We need access SCU and CHIP_SCU regmaps in several places (clk-airoha, reset-airoha, airoha_eth). Unfortunately these regmaps can't be easily retrieved with a common code, because of different Airoha SoCs uses a different dts structure. To make life easy we can write a commonly named SoC specific helpers for these tasks. This patch implements helpers for Airoha AN7581 SoC. Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>
2025-11-06Merge patch series "ARM: bootm: Add support for starting Linux through ↵Tom Rini
OPTEE-OS on ARMv7a" This series from Marek Vasut <marek.vasut@mailbox.org> brings some enhancements to use cases using OPTEE-OS on ARMv7a platforms, some of which already existed on ARMv8. Link: https://lore.kernel.org/r/20251030212359.12824-1-marek.vasut@mailbox.org
2025-11-06ARM: bootm: Add support for starting Linux through OPTEE-OS on ARMv7aMarek Vasut
Add support for jumping to Linux kernel through OPTEE-OS on ARMv7a. This is only supported if U-Boot runs in PL1 secure. This change adds two components, one is fitImage OPTEE-OS loadable handler, which makes a note of OPTEE-OS being loaded and stores the load address for later jump to it. The second part is the actual jump to Linux through OPTEE-OS. The jump through OPTEE-OS requires set up of multiple CPU registers, r1 and r2 are passed through, r0 and r3 have to be set to 0, lr is set to Linux kernel entry point. This setup is done by new assembler function boot_jump_linux_via_optee(). The boot_jump_linux_via_optee() also includes STM32MP13xx late TZC configuration write, this cannot be moved easily, hence the ifdef. Signed-off-by: Marek Vasut <marek.vasut@mailbox.org>
2025-11-04arm: arch-imx9: Add USB2.0 and USB3.0 base address definitionsAlice Guo
Add USB1_BASE_ADDR and USB2_BASE_ADDR for i.MX9 platform, and define USB_BASE_ADDR as an alias to USB2_BASE_ADDR. Signed-off-by: Alice Guo <alice.guo@nxp.com>
2025-11-02rockchip: spl: Add a read_brom_bootsource_id() helperJonas Karlman
The bootsource ids reported by BootROM of RK3528 and RK3576 for e.g. SPI NOR and USB differs slightly compared to prior SoCs: - Booting from sfc0 (ROCK 4D) report the normal bootsource id 0x3. - Booting from sfc1 M1 (NanoPi M5) report a new bootsource id 0x23. - Booting from sfc1 M0 has not been tested (no board using this config). - Booting from USB report a new bootsource id 0x81 on RK3528 and RK3576. Add a helper function to read the bootsource id. This helper function will be used to translate the new values to the common BROM_BOOTSOURCE enum values on RK3528 and RK3576. Signed-off-by: Jonas Karlman <jonas@kwiboo.se> Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2025-10-22arm: armv8: mmu: add mmu_unmap_reserved_memAnshul Dalal
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>
2025-10-22arm: armv8: mmu: add mem_map_from_dram_banksAnshul Dalal
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>
2025-10-22arm: armv8: mmu: export mmu_setupAnshul Dalal
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>
2025-09-30Merge tag 'u-boot-socfpga-next-20250930' of ↵Tom Rini
https://source.denx.de/u-boot/custodians/u-boot-socfpga into next SoCFPGA updates for v2025.10: CI: https://source.denx.de/u-boot/custodians/u-boot-socfpga/-/pipelines/27762 This pull request brings a set of updates across SoCFPGA platforms covering Agilex5, Agilex7, N5X, and Stratix10. The changes include: * Agilex5 enhancements: - USB3.1 enablement and DWC3 host driver support - System Manager register configuration for USB3 - Watchdog timeout increase and SDMMC clock API integration - dcache handling improvements in SMC mailbox path - Enable SPL_SYS_DCACHE_OFF in defconfig * Clock driver improvements: - Introduce dt-bindings header for Agilex clocks - Add enable/disable API and EMAC clock selection fixes - Replace manual shifts with FIELD_GET usage * DDR updates: - IOSSM mailbox compatibility check - Correct DDR calibration status handling * Device tree changes: - Agilex5: disable cache allocation for reads - Stratix10: add NAND IP node - Enable driver model watchdog - Enable USB3.1 node for Agilex5 * Config cleanups: - Simplify Agilex7 VAB defconfig - Remove obsolete SYS_BOOTM_LEN from N5X VAB config - Enable CRC32 support for SoCFPGA - Increase USB hub debounce timeout Overall this set improves reliability of DDR and cache flows, adds missing USB and MMC features for Agilex5, and refines clock and configuration handling across platforms. This patch set has been tested on Agilex 5 devkit, and Agilex devkit.
2025-09-30cache: Check dcache availability before calling cache functionsBoon Khai Ng
When the data cache (dcache) is disabled, calling related status functions can lead to compilation errors due to undefined references. Adding a !CONFIG_IS_ENABLED(SYS_DCACHE_OFF) check before invoking dcache_status() (used in common/memsize.c:get_ram_size()) and mmu_status() (from arch/arm/include/asm/io.h). Without this check, builds with dcache disabled will fail to compile. Signed-off-by: Boon Khai Ng <boon.khai.ng@altera.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2025-09-26arm64: Add MIDR entry for Cortex-A720Marek Vasut
Add MIDR entry for Cortex-A720 core. Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
2025-09-26imx9: Change container header temp buffer addressYe Li
Due to i.MX95 has reserved first 256MB DDR, change to use the DDR start address in u-boot as the container header buffer. Signed-off-by: Ye Li <ye.li@nxp.com> Signed-off-by: Alice Guo <alice.guo@nxp.com> Reviewed-by: Peng Fan <peng.fan@nxp.com>
2025-09-26imx9: scmi: Update the files under arch/arm/mach-imx/imx9/scmi/ to support ↵Ye Li
i.MX94 - Add base addresses for WDG3, WDG4, GPIO6, and GPIO7 for i.MX94. - Introduce common.h with macros of clock IDs, power domains, and CPU types for platform-specific replacement (e.g., i.MX94, i.MX95). - Extend imx_get_mac_from_fuse() to support i.MX94. Signed-off-by: Ye Li <ye.li@nxp.com> Signed-off-by: Alice Guo <alice.guo@nxp.com> Acked-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Jacky Bai <ping.bai@nxp.com>
2025-09-26imx95: Add get_reset_reason() to retrieve the LM/system last booted/shutdown ↵Peng Fan
reasons System Manager provides the last booted and shutdown reasons of the logical machines (LM) and system using the SCMI misc protocol (Protocol ID: 0x84, Message ID: 0xA). This path adds get_reset_reason() to query and print these reasons in SPL and U-Boot. Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Alice Guo <alice.guo@nxp.com> Reviewed-by: Ye Li <ye.li@nxp.com>
2025-09-26imx9: Add i.MX94 CPU type and SoC-level KconfigYe Li
Introduce support for the new i.MX94 processor, including its CPU type and SoC-level Kconfig entry. The i.MX94 is a new member of the i.MX9 family. It uses a System Manager to handle system-level functions such as power, clock, sensor and pin control. The System Manager runs on a Cortex-M processor, while the Cortex-A processor communicates with it via the ARM SCMI protocol and a messaging unit. Signed-off-by: Ye Li <ye.li@nxp.com> Signed-off-by: Alice Guo <alice.guo@nxp.com> Acked-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Jacky Bai <ping.bai@nxp.com>
2025-09-23Merge tag 'v2025.10-rc5' into nextTom Rini
Prepare v2025.10-rc5
2025-09-21arm: imx9: Fix LPCG number in ccm_reg structureYe Li
The LPCG number on iMX93 and iMX91 is 127 not 122. The wrong value is used in ccm_reg structure and Coverity reports several issues as out-of-bounds write. Signed-off-by: Ye Li <ye.li@nxp.com> Reviewed-by: Peng Fan <peng.fan@nxp.com>
2025-08-11arm: bcm235xx: Remove this SoCTom Rini
As there are no platforms for this SoC, remove the code. Signed-off-by: Tom Rini <trini@konsulko.com>
2025-08-08imx9: soc: Reuse and export low_drive_freq_update()Primoz Fiser
Reuse and export low_drive_freq_update() function. This way global imx9 board_fix_fdt() doesn't duplicate code. While low_drive_freq_update() can be reused on boards such as phyCORE-i.MX93 (TARGET_PHYCORE_IMX93) which is not using the global imx9 board_fix_fdt() implementation. While at it, make printout logic less verbose by only outputting on the error condition and not on each successful clock fixup. Also drop now invalid comment (low_drive_freq_update() now does fixup for internal and kernel device-tree). Signed-off-by: Primoz Fiser <primoz.fiser@norik.com>
2025-08-04Merge branch 'u-boot-nand-03082025' of ↵Tom Rini
https://source.denx.de/u-boot/custodians/u-boot-nand-flash CI: https://source.denx.de/u-boot/custodians/u-boot-nand-flash/-/pipelines/27258 This series address issues found by Andrew Goodbody and mostly drop driver that are not used by any board
2025-08-03mtd: nand: raw: Remove unused lpc32xx_nand_slc driverTom Rini
As no platforms use this driver anymore let's go ahead and remove it. Signed-off-by: Tom Rini <trini@konsulko.com>
2025-08-01video: tegra: parametrize PCLK and DE polaritySvyatoslav Ryhel
Configure pixel clock and data enable polarity according to panel flags. Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
2025-08-01ARM: tegra: Use AES engine for crypto functionsIon Agorria
Previously software based AES encryption was used with previously known device specific keys (SBK), now that we have AES driver we can simply delegate this to the engine without prior knowledge of the key (assuming it is still loaded). Signed-off-by: Ion Agorria <ion@agorria.com>
2025-08-01ARM: tegra: Add LP0 support for ODM productionIon Agorria
Now that we have working AES engine driver we can request the warmboot code to be encrypted and signed with SBK if the device requires so. This unlocks LP0 support for most devices in the wild as they use ODM Production Secure. We are not aware of any "ODM Production Open" device nor have access to thus this has not been tested on one, merely added for completeness. Signed-off-by: Ion Agorria <ion@agorria.com>
2025-08-01crypto: tegra: Add Tegra AES engine driverIon Agorria
This driver allows using Tegra AES engines within BSEV and BSEA blocks to encrypt and decrypt data using different AES algorithms. One use case is allowing u-boot to self update by using the already loaded AES key in the engine's SBK slot by the bootrom. Particular care must be taken as chainloaded u-boot's may not have the SBK slot loaded as the vendor bootloader erases it before leaving it. Signed-off-by: Ion Agorria <ion@agorria.com>
2025-08-01ARM: tegra: Relocate fuse code from warmboot fileIon Agorria
Move a set of helpers used in warmboot code to more appropriate AP and FUSE locations. Signed-off-by: Ion Agorria <ion@agorria.com>
2025-07-29treewide: Fix STMicroelectronics spellingPatrice Chotard
Fix STMicroelectronics spelling in comments. Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
2025-07-27sunxi: A523: add DRAM initialisation routineJernej Skrabec
DRAM init code, as per reverse engineering and matching against previous SoCs. As usual no real documentation, and the DRAM controller is the usual mixture of close-to-previous IP and new inventions. This version supports LPDDR4 for now only, as seen on the early boards. This needs improvements, but it can be done later. Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2025-07-27sunxi: sun50i_h6: add A523 SPL clock setup codeJernej Skrabec
This adds the early A523 clock setup code, for the basic peripheral PLL and the basic bus clocks (APB/AHB). This is quite close to the existing H6 and H616 clock code, so this shares the same file. A few bits and bobs are different, though, so filter for the A523 in a few occasions. Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2025-07-27sunxi: update cpu_sunxi_ncat2.hAndre Przywara
The cpu_sunxi_ncat2.h header file contains addresses of some peripherals that are needed for the SPL, for chips that belong to the "NCAT2" generation. The Allwinner A523 is a member of this group, but a few addresses differ, and we need a few more addresses, for playing with the core reset, for instance. Add the new addresses needed for the A523 and guard existing definitions that conflict with that new chip. Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2025-07-27sunxi: spl: add support for Allwinner A523 watchdogAndre Przywara
The watchdog in the Allwinner A523 SoC differs a bit from the one in the previous SoCs: it lives in a separate register frame, so no longer inside some timer device, and it manages to shuffle around some registers a bit. But it also conveniently adds a direct reset functionality, so we don't need to use a dummy timeout period. Avoid introducing a new MMIO register frame C struct, but just define the one needed register offset as a macro. Then just trigger this new direct reset functionality in the A523 specific reset_cpu() implementation. Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2025-07-27sunxi: clock: H6: add A523 CPU PLL supportAndre Przywara
The Allwinner A523 features 8 CPU cores, organised in two clusters, both driven by separate PLLs. Also there is the DSU PLL, which clocks the hardware that connects the cores to the rest of the system. And while the PLL registers itself are very similar, they are located in a separate register frame, outside the main CCU, and also the register controlling the CPU clock source (mux) is different. Provide a separate function that reparents the two clusters and the DSU, while their PLLs are programmed. For the actual PLL programming, we rely on the existing shared routine. The selection between the new A523 routine and the existing code is made with C if statements, but since the choice is effectively made at compile time already, the compiler optimises away the other code paths, leaving just the one required function in. Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2025-07-27sunxi: clock: H6: factor out clock_set_pll()Andre Przywara
The SPL initial clock setup code for the Allwinner H6 and H616 SoCs uses a simple CPU PLL setup routine, which programs all register bits at once, then waits for the LOCK bit to clear. The manual suggests to follow a certain procedure for bringing up any PLLs, which involves several register writes, one at a time, and some delays. Also the H616 and the new A523 require some tiny changes in this sequence, and the different SoCs also feature some extra bits here and there, which we should not just clear. So factor out the PLL setup routine, and make it follow the manual's suggestion. This will read the PLL register at the beginning, then tweak the bits we need to manipulate, and writes the register several times on the way. This allows to cover the specific bits for different SoCs. Besides improving the reliability of the PLL setup, this helps with the A523, which requires *three* CPU PLLs to be programmed. Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2025-07-27sunxi: clock: H6: unify PLL control bit definitionsAndre Przywara
The Allwinner PLLs share most of their control bits, they differ mostly in the factors and dividers. Drop the PLL specific definition of those common bits, and use one shared macro, for all PLLs. This requires changing the users in the SPL clock and DRAM code. Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2025-07-24imx93_frdm: Add initial board supportFabio Estevam
Add the initial board support for the NXP i.MX93 FRDM board: https://www.nxp.com/design/design-center/development-boards-and-designs/frdm-i-mx-93-development-board:FRDM-IMX93 Based on the NXP U-Boot code. There were attempts to upstream the board devicetree, but it has not been accepted upstream yet: https://lore.kernel.org/linux-arm-kernel/20250526-fpg-nxp-imx93-frdm-v2-2-e5ad0efaec33@pengutronix.de/ Once it reaches upstream, we can switch to OF_UPSTREAM. Signed-off-by: Fabio Estevam <festevam@gmail.com> Reviewed-by: Peng Fan <peng.fan@nxp.com>