I've picked up Ian's and Thierry's work on PSCI support for Tegra124, specifically the Jetson TK1 board. This series contains Ian's patches and a rewritten version of the PSCI core as suggested by Thierry. It's working fine on the TK1, allowing Linux to online/offline CPUs 1-3 as it likes (provided CONFIG_CPU_IDLE is off).
Patches are also available here:
https://github.com/siemens/u-boot/tree/jetson-tk1
Looking forward to review.
Jan
CC: Ian Campbell ijc@hellion.org.uk CC: Jan Kiszka jan.kiszka@siemens.com
Ian Campbell (4): tegra124: Add more registers to struct mc_ctlr virt-dt: Allow reservation of the secure region when it is in a RAM carveout. jetson-tk1: Add PSCI configuration options and reserve secure code tegra124: Reserve secure RAM using MC_SECURITY_CFG{0, 1}_0
Jan Kiszka (5): ARM: Factor out reusable psci_cpu_off_common ARM: Factor out reusable psci_cpu_entry tegra: Make tegra_powergate_power_on public tegra: Add ap_pm_init hook tegra124: Add PSCI support for Tegra124
arch/arm/cpu/armv7/Makefile | 1 + arch/arm/cpu/armv7/psci.S | 90 +++++++++++++++++++++++++ arch/arm/cpu/armv7/sunxi/psci.S | 84 +---------------------- arch/arm/cpu/armv7/tegra-common/Makefile | 1 + arch/arm/cpu/armv7/tegra-common/psci.S | 101 ++++++++++++++++++++++++++++ arch/arm/cpu/armv7/tegra124/Kconfig | 2 + arch/arm/cpu/armv7/tegra124/Makefile | 7 ++ arch/arm/cpu/armv7/tegra124/ap.c | 44 ++++++++++++ arch/arm/cpu/armv7/virt-dt.c | 5 ++ arch/arm/cpu/armv7/virt-v7.c | 5 ++ arch/arm/cpu/tegra-common/ap.c | 15 +++++ arch/arm/cpu/tegra-common/powergate.c | 2 +- arch/arm/include/asm/arch-tegra/ap.h | 5 ++ arch/arm/include/asm/arch-tegra/powergate.h | 1 + arch/arm/include/asm/arch-tegra124/flow.h | 5 ++ arch/arm/include/asm/arch-tegra124/mc.h | 35 +++++++++- arch/arm/include/asm/system.h | 1 + board/nvidia/common/board.c | 4 ++ include/configs/jetson-tk1.h | 5 ++ 19 files changed, 329 insertions(+), 84 deletions(-) create mode 100644 arch/arm/cpu/armv7/tegra-common/psci.S create mode 100644 arch/arm/cpu/armv7/tegra124/Makefile create mode 100644 arch/arm/cpu/armv7/tegra124/ap.c