[U-Boot] [PATCH V3 2/6] misc: add Tegra BPMP driver

[Simon Glass]

On 5 August 2016 at 11:03, Stephen Warren <swarren at wwwdotorg.org> wrote:
> From: Stephen Warren <swarren at nvidia.com>
>
> The Tegra BPMP (Boot and Power Management Processor) is a separate
> auxiliary CPU embedded into Tegra to perform power management work, and
> controls related features such as clocks, resets, power domains, PMIC I2C
> bus, etc. This driver provides the core low-level communication path by
> which feature-specific drivers (such as clock) can make requests to the
> BPMP. This driver is similar to an MFD driver in the Linux kernel. It is
> unconditionally selected by CONFIG_TEGRA186 since virtually any Tegra186
> build of U-Boot will need the feature.
>
> Signed-off-by: Stephen Warren <swarren at nvidia.com>
> ---
> v3:
> * Implement misc uclass "call" op.
> * Squash in patch that scans DT for child devices (for I2C support), v2 of
>   which had changelog:
>   * Use dm_scan_fdt_dev() to scan sub-nodes. This function was just added.
> v2:
> * Use an SPDX license header in bpmp_abi.h.
> * Add a function-level comment for tegra186_bpmp_call().
> * Use fdtdec_get_addr_size_auto_noparent() to retrieve shmem address.
>
> This depends on the following patches:
> fdt: allow fdtdec_get_addr_size_*() to translate addresses
> fdt_support: fdt_translate_address() blob const correctness
> ---
>  arch/arm/include/asm/arch-tegra/bpmp_abi.h | 1591 ++++++++++++++++++++++++++++
>  arch/arm/mach-tegra/Kconfig                |    2 +
>  drivers/misc/Kconfig                       |   12 +
>  drivers/misc/Makefile                      |    1 +
>  drivers/misc/tegra186_bpmp.c               |  257 +++++
>  5 files changed, 1863 insertions(+)
>  create mode 100644 arch/arm/include/asm/arch-tegra/bpmp_abi.h
>  create mode 100644 drivers/misc/tegra186_bpmp.c

Reviewed-by: Simon Glass <sjg at chromium.org>