[PATCH V4 0/5] firmware: Add support for TI System Control Interface (TI-SCI) protocol driver

From: Nishanth Menon
Date: Tue Oct 18 2016 - 19:12:01 EST

Version 4 of the series is basically a rebase to v4.9-rc1, no functional

Texas Instruments' Keystone generation System on Chips (SoC)
starting with 66AK2G02[1], now include a dedicated SoC System Control
entity called PMMC(Power Management Micro Controller) in line with
ARM architecture recommendations. The function of this module is
to integrate all system operations in a centralized location.
Communication with the SoC System Control entity from various
processing units like ARM/DSP occurs over Message Manager hardware

This series adds the base support for TI System Control Interface
(TI-SCI) protocol[2]. The protocol is built on top of Texas
Instrument's Message Manager communication mechanism[3].

Overall architecture is very similar to SCPI[4] as follows:
+-------------+ +---------+ +------^-----+
| TI SCI GENPD| |TISCI Clk| |TISCI reset |
+------+------+ +----+----+ +------+-----+
| | |
| +----v--------------+ |
+----------> TISCI Protocol(*) <--+
| TI MSGMGR |-> TISCI hardware block
(*) This series.

V4 of the series is based off v4.9-rc1 and is also available here:
Quick boot test: http://pastebin.ubuntu.com/23346183/

Changes since v3:
- rebase to v4.9-rc1
- minor checkpatch fixes

V3: https://lkml.org/lkml/2016/9/6/747
V2: https://lkml.org/lkml/2016/8/30/273
V1: https://lkml.org/lkml/2016/8/19/768

Nishanth Menon (5):
Documentation: Add support for TI System Control Interface (TI-SCI)
firmware: Add basic support for TI System Control Interface (TI-SCI)
firmware: ti_sci: Add support for Device control
firmware: ti_sci: Add support for Clock control
firmware: ti_sci: Add support for reboot core service

.../devicetree/bindings/arm/keystone/ti,sci.txt | 81 +
drivers/firmware/Kconfig | 15 +
drivers/firmware/Makefile | 1 +
drivers/firmware/ti_sci.c | 1991 ++++++++++++++++++++
drivers/firmware/ti_sci.h | 492 +++++
include/linux/soc/ti/ti_sci_protocol.h | 249 +++
7 files changed, 2839 insertions(+)
create mode 100644 Documentation/devicetree/bindings/arm/keystone/ti,sci.txt
create mode 100644 drivers/firmware/ti_sci.c
create mode 100644 drivers/firmware/ti_sci.h
create mode 100644 include/linux/soc/ti/ti_sci_protocol.h