u-boot.git/drivers/sysreset, branch main

Merge branch 'next'

2026-07-07T00:26:12Z

drivers: sysreset: revert support for args in request

2026-07-03T19:45:58Z

This reverts: - commit e49c84f7bb7b ("doc: usage: cmd: reset: specify when the -edl option is available") - commit 1076feb8a3f9 ("cmd: boot: fix edl being shown when not supported") - commit 63c806ba0e12 ("qcom_defconfig: enable psci based sysreset") - commit ef06c5d76ff4 ("cmd: boot: Add '-edl' option to reset command documentation") - commit 32825eaddc37 ("sysreset: Implement PSCI based reset to EDL mode for QCOM SoCs") - commit fcb48b89813b ("drivers: sysreset: Add sysreset op that can take arguments") There was a conflict reverting commit 63c806ba0e12 ("qcom_defconfig: enable psci based sysreset") due to commit 02ef1859b44f ("configs: Resync with savedefconfig"), but the conflict resolution was trivial. The args support for the sysreset uclass contains a logic bug. The first sysreset device implementing the request_arg callback will consume the args, not support the specified arg and thus return -EPROTONOSUPPORT which will stop the iteration over all sysreset devices. This is an issue if one has multiple sysreset devices and each with support for different (valid) args. If a sysreset device implements a -dummy argument and another -foo and a user calls reset -dummy from the U-Boot CLI, it'll depend on which sysreset device will be attempted first. If it is the one implementing -foo, it'll return it doesn't support the argument with -EPROTONOSUPPORT in which case the device implementing -dummy will never be attempted and instead we'll do a cold reset which is very likely not what's expected from the user. Casey suggested[1] we revert this and start from scratch again with a different implementation instead. [1] https://lore.kernel.org/u-boot/77ff0f56-5c3b-42e7-bdd1-bf90296da900@linaro.org/ Acked-by: Casey Connolly Signed-off-by: Quentin Schulz

sysreset: qemu virt: Use __raw_writel()

2026-05-22T22:47:54Z

The virt ctrl register seems to be native endian, currently this driver uses writel(), which works by luck because its currently broken on m68k. Use __raw_writel() instead to avoid breaking this driver when the endianness of writel() is fixed. Acked-by: Kuan-Wei Chiu Reviewed-by: Angelo Dureghello Reviewed-by: Simon Glass Signed-off-by: Daniel Palmer

sysreset: qemu virt: Use map_sysmem()

2026-05-22T22:47:54Z

In the platform data there is a phys_addr_t (an integer) for the address of the register and we pass that as-is into writel() which is fine in most places because we don't need to do any mapping and the macro for writel() does a cast to a pointer. If writel() is a static inline function the address argument is a pointer so passing it in as an integer without casting it first causes warnings or build failure. map_sysmem() handles the casting part and if phys_addr_t is 32bits when on a 64bit machine. Signed-off-by: Daniel Palmer Acked-by: Kuan-Wei Chiu

sysreset: Implement PSCI based reset to EDL mode for QCOM SoCs

2026-04-27T10:38:44Z

Implement request_arg() sysreset_op for QCOM SoCs that use PSCI to reset to EDL (Emergency Download) mode. Reviewed-by: Casey Connolly Reviewed-by: Sumit Garg Signed-off-by: Varadarajan Narayanan Link: https://patch.msgid.link/20260121063920.1500293-4-varadarajan.narayanan@oss.qualcomm.com [casey: add missing ARM_SMCCC depends to kconfig to fix CI allyesconfig] Signed-off-by: Casey Connolly

drivers: sysreset: Add sysreset op that can take arguments

2026-04-27T10:38:44Z

Add a 'request_arg' op to struct sysreset_ops to enable sysreset drivers to receive arguments given to the 'reset' command. Process the request_arg() op before the usual request() op. Reviewed-by: Casey Connolly Reviewed-by: Sumit Garg Signed-off-by: Varadarajan Narayanan Reviewed-by: Tom Rini Link: https://patch.msgid.link/20260121063920.1500293-3-varadarajan.narayanan@oss.qualcomm.com Signed-off-by: Casey Connolly

global: Correct duplicate U_BOOT_DRIVER entry names

2026-04-07T17:32:56Z

The U_BOOT_DRIVER macro creates a list of drivers used at link time, and all entries here must be unique. This in turn means that all entries in the code should also be unique in order to not lead to build failures later with unexpected build combinations. Typically, the problem we have here is when a driver is obviously based on another driver and didn't update this particular field and so while the name field reflects something unique the linker entry itself is not. In a few places this provides a more suitable string name as well, however. Reviewed-by: Marek Vasut Reviewed-by: Svyatoslav Ryhel # Tegra Reviewed-by: Peter Robinson Reviewed-by: Heiko Schocher Reviewed-by: Simon Glass Signed-off-by: Tom Rini

Replace TARGET namespace and cleanup properly

2026-02-14T17:06:46Z

TARGET namespace is for machines / boards / what-have-you that building U-Boot for. Simply replace from TARGET to ARCH make things more clear and proper for ALL SoCFPGA. Signed-off-by: Brian Sune Reviewed-by: Tien Fong Chee # Conflicts: # drivers/ddr/altera/Makefile

sysreset: Add QEMU virtual system controller driver

2026-02-02T20:24:40Z

Introduce a new sysreset driver for the QEMU Virtual System Controller. This device is found on QEMU "virt" machines (such as the m68k virt target) and provides a mechanism to trigger system reset and power-off events. The driver maps U-Boot sysreset types to the corresponding controller commands: - SYSRESET_WARM / SYSRESET_COLD -> VIRT_CTRL_CMD_RESET - SYSRESET_POWER_OFF -> VIRT_CTRL_CMD_HALT Signed-off-by: Kuan-Wei Chiu Reviewed-by: Simon Glass

sysreset: Tighten some sysreset driver dependencies

2025-08-14T16:59:35Z

The MPC83xx sysreset driver cannot build without access to some architecture specific header files. Express that requirements in Kconfig as well. Reviewed-by: Peter Robinson Signed-off-by: Tom Rini