This patchset aims to support the legacy SCPI firmware implementation that was delivered as early technology preview for the JUNO platform.
Finally a stable, maintained and public implementation for the SCPI protocol has been upstreamed part of the JUNO support and it is the recommended way of implementing SCP communication on ARMv8 platforms. The Amlogic GXBB platform is using this legacy protocol, as the RK3368 & RK3399 platforms. This patchset will only add support for Amlogic GXBB SoC. This patchset add support for the legacy protocol in the arm_scpi.c file, avoiding code duplication. Last RFC discution tread can be found at : https://lkml.org/lkml/2016/8/9/210 Changes since v2 at : http://lkml.kernel.org/r/[email protected] - Added command indirection table and use it in each commands - Added bitmap for high priority commands - Cleaned up legacy tx_prepare/handle_message to align to standard functions - Dropped legacy_scpi_ops Changes since v1 at : http://lkml.kernel.org/r/[email protected] - Dropped vendor_send_message and rockchip vendor mechanism patches - Merged alternate functions into main functions using is_legacy boolean - Added DT match table to set is_legacy to true - Kept alternate scpi_ops structure for legacy Neil Armstrong (8): scpi: Add cmd indirection table to prepare for legacy commands scpi: Add alternative legacy structures, functions and macros scpi: Do not fail if get_capabilities is not implemented scpi: Add support for Legacy match table for Amlogic GXBB SoC scpi: grow MAX_DVFS_OPPS to 16 entries dt-bindings: Add support for Amlogic GXBB SCPI Interface ARM64: dts: meson-gxbb: Add SRAM node ARM64: dts: meson-gxbb: Add SCPI with cpufreq & sensors Nodes Documentation/devicetree/bindings/arm/arm,scpi.txt | 8 +- arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi | 45 +++ drivers/firmware/arm_scpi.c | 378 +++++++++++++++++++-- 3 files changed, 402 insertions(+), 29 deletions(-) -- 1.9.1
