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| author | Thierry Reding <treding@nvidia.com> | 2016-08-19 20:05:35 +0300 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2016-11-18 16:33:43 +0300 |
| commit | 983de5f97169ab59d4cb0f60d9d9157778ce4a5e (patch) | |
| tree | 630ac9372721161c85d83b9ce68f309f87094957 /drivers/firmware/tegra/Kconfig | |
| parent | ca791d7f425635b63706e00896a141f85f7de463 (diff) | |
| download | linux-983de5f97169ab59d4cb0f60d9d9157778ce4a5e.tar.xz | |
firmware: tegra: Add BPMP support
The Boot and Power Management Processor (BPMP) is a co-processor found
on Tegra SoCs. It is designed to handle the early stages of the boot
process and offload power management tasks (such as clocks, resets,
powergates, ...) as well as system control services.
Compared to the ARM SCPI, the services provided by BPMP are message-
based rather than method-based. The BPMP firmware driver provides the
services to transmit data to and receive data from the BPMP. Users can
also register a Message ReQuest (MRQ), for which a service routine will
be run when a corresponding event is received from the firmware.
A set of messages, called the BPMP ABI, are specified for a number of
different services provided by the BPMP (such as clocks or resets).
Based on work by Sivaram Nair <sivaramn@nvidia.com> and Joseph Lo
<josephl@nvidia.com>.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/firmware/tegra/Kconfig')
| -rw-r--r-- | drivers/firmware/tegra/Kconfig | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/firmware/tegra/Kconfig b/drivers/firmware/tegra/Kconfig index 1fa3e4e136a5..ff2730d5c468 100644 --- a/drivers/firmware/tegra/Kconfig +++ b/drivers/firmware/tegra/Kconfig @@ -10,4 +10,16 @@ config TEGRA_IVC keeps the content is synchronization between host CPU and remote processors. +config TEGRA_BPMP + bool "Tegra BPMP driver" + depends on ARCH_TEGRA && TEGRA_HSP_MBOX && TEGRA_IVC + help + BPMP (Boot and Power Management Processor) is designed to off-loading + the PM functions which include clock/DVFS/thermal/power from the CPU. + It needs HSP as the HW synchronization and notification module and + IVC module as the message communication protocol. + + This driver manages the IPC interface between host CPU and the + firmware running on BPMP. + endmenu |