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author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2017-04-14 05:10:24 +0300 |
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committer | Tom Rini <trini@konsulko.com> | 2017-04-18 17:29:19 +0300 |
commit | 573a3811edc89c2ea3bf4fd077e3673b863b9a0d (patch) | |
tree | 8704ecc42d27c29d7aaef07c2f3942a67d8df476 /drivers/firmware/firmware-uclass.c | |
parent | c54bcf6805cc6762cb998751b8e005f39ee1dad1 (diff) | |
download | u-boot-573a3811edc89c2ea3bf4fd077e3673b863b9a0d.tar.xz |
sysreset: psci: support system reset in a generic way with PSCI
If the system is running PSCI firmware, the System Reset function
(func ID: 0x80000009) is supposed to be handled by PSCI, that is,
the SoC/board specific reset implementation should be moved to PSCI.
U-Boot should call the PSCI service according to the arm-smccc
manner.
The arm-smccc is supported on ARMv7 or later. Especially, ARMv8
generation SoCs are likely to run ARM Trusted Firmware BL31. In
this case, U-Boot is a non-secure world boot loader, so it should
not be able to reset the system directly.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'drivers/firmware/firmware-uclass.c')
-rw-r--r-- | drivers/firmware/firmware-uclass.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/firmware/firmware-uclass.c b/drivers/firmware/firmware-uclass.c new file mode 100644 index 0000000000..01b6a44b9d --- /dev/null +++ b/drivers/firmware/firmware-uclass.c @@ -0,0 +1,11 @@ +/* + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <dm/uclass.h> + +/* Firmware access is platform-dependent. No generic code in uclass */ +UCLASS_DRIVER(firmware) = { + .id = UCLASS_FIRMWARE, + .name = "firmware", +}; |