u-boot.git/arch/arm/include/asm/system.h, branch v2020.04

arm: cpu: armv8: add support for arm psci reset2.

2020-01-10T19:18:26Z

Current U-Boot has only support for psci reset. Adding support for arm psci reset2 allows passing of reset level and other platform sepcific parameters like strap settings to lowlevel psci implementation. Signed-off-by: Rajesh Ravi Signed-off-by: Vladimir Olovyannikov

psci: Fix warnings when compiling with W=1

2019-07-24T18:15:38Z

This patch solves the following warnings: arch/arm/mach-stm32mp/psci.c: warning: no previous prototype for ‘psci_set_state’ [-Wmissing-prototypes] warning: no previous prototype for ‘psci_arch_cpu_entry’ [-Wmissing-prototypes] warning: no previous prototype for ‘psci_features’ [-Wmissing-prototypes] warning: no previous prototype for ‘psci_version’ [-Wmissing-prototypes] warning: no previous prototype for ‘psci_affinity_info’ [-Wmissing-prototypes] warning: no previous prototype for ‘psci_migrate_info_type’ [-Wmissing-prototypes] warning: no previous prototype for ‘psci_cpu_on’ [-Wmissing-prototypes] warning: no previous prototype for ‘psci_cpu_off’ [-Wmissing-prototypes] warning: no previous prototype for ‘psci_system_reset’ [-Wmissing-prototypes] warning: no previous prototype for ‘psci_system_off’ [-Wmissing-prototypes] Signed-off-by: Patrick Delaunay

ARMv8: Enable all asynchronous abort exceptions taken to EL3

2018-11-16T18:34:33Z

Allow EL3 to handle all the External Abort and SError interrupt exception occur in all exception levels. Signed-off-by: Chee Hong Ang

arm: v7: Kconfig: Rename CPU_V7 as CPU_V7A

2018-05-07T19:53:24Z

Currently CPU_V7 kconfig symbol supports only ARMv7A architectures under armv7 folder. This led to a misconception of creating separate folders for armv7m and armv7r. There is no reason to create separate folder for other armv7 based architectures when it can co-exist with few Kconfig symbols. As a first step towards a common folder, rename CPU_V7 as CPUV7A. Later separate Kconfig symbols can be added for CPU_V7R and CPU_V7M and can co exist in the same folder. Reviewed-by: Tom Rini Tested-by: Michal Simek Suggested-by: Alexander Graf Signed-off-by: Lokesh Vutla

arm: make save_boot_params_ret prototype visible for AArch64

2017-11-21T22:57:22Z

The save_boot_params_ret() prototype (for those of us, that have a valid SP on entry and can implement save_boot_params() in C), was previously only defined for !defined(CONFIG_ARM64). This moves the declaration to a common block to ensure the prototype is available to everyone that might need it. Signed-off-by: Philipp Tomsich Tested-by: Andy Yan

armv8: layerscape: Enable falcon boot

2017-10-09T15:48:45Z

Add jump_to_image_linux() for arm64. Add "noreturn" flag to armv8_switch_to_el2(). Add hooks to fsl-layerscape to enable falcon boot. Signed-off-by: York Sun Reviewed-by: Simon Glass Reviewed-by: Łukasz Majewski Tested-by: Łukasz Majewski

arm: Support cache invalidate

2017-05-12T02:03:39Z

At present there is not operation to invalidate a cache range. This seems to be needed to fill out the cache operations. Add an implementation based on the flush operation. Signed-off-by: Simon Glass Reviewed-by: York Sun

armv8: mmu: Add a function to change mapping attributes

2017-03-14T15:44:03Z

Function mmu_change_region_attr() is added to change existing mapping with updated PXN, UXN and memory type. This is a break-before-make process during which the mapping becomes fault (invalid) before final attributres are set. Signed-off-by: York Sun

armv8: aarch64: Fix the warning about x1-x3 nonzero issue

2017-01-18T17:29:33Z

For 64-bit kernel, there is a warning about x1-x3 nonzero in violation of boot protocol. To fix this issue, input argument 4 is added for armv8_switch_to_el2 and armv8_switch_to_el1. The input argument 4 will be set to the right value, such as zero. Signed-off-by: Alison Wang Reviewed-by: Alexander Graf Tested-by: Ryan Harkin Tested-by: Michal Simek Reviewed-by: York Sun

ARMv8: Setup PSCI memory and device tree

2016-12-15T19:57:51Z

Newly add ARMv8 PSCI needs to be initialized, be copied or reserved in right place, this patch does all the setup steps. Signed-off-by: Hongbo Zhang Reviewed-by: Tom Rini Reviewed-by: York Sun