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Message-ID: <20160820003342.13599-1-nm@ti.com>
Date: Fri, 19 Aug 2016 19:33:39 -0500
From: Nishanth Menon <nm@...com>
To: Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...eaurora.org>
CC: Dave Gerlach <d-gerlach@...com>, Tero Kristo <t-kristo@...com>,
Russell King <rmk+kernel@...linux.org.uk>,
Sudeep Holla <sudeep.holla@....com>,
Santosh Shilimkar <ssantosh@...nel.org>,
<linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>, <linux-pm@...r.kernel.org>,
<linux-clk@...r.kernel.org>, Nishanth Menon <nm@...com>
Subject: [PATCH 0/3] ARM: K2G: Add support for TI-SCI Clocks
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
block.
This series adds the base support for clock control using generic
power domain framework over the TI System Control Interface (TI-SCI)
protocol[2][3][4].
Overall architecture is very similar to SCPI[5] as follows:
+--------------+ +-------------+ +------------+
| TI SCI GENPD | |TISCI Clk(*) | |TISCI reset |
+------+-------+ +----+--------+ +----+-------+
| | |
| +----v--------------+ |
+----------> TISCI Protocol <--+
+----+--------------+
|
+---v-----------+
| MAILBOX FWK |
+---+-----------+
|
+---v-----------+
| TI MSGMGR |-> TISCI hardware block
+---------------+
(*) This series.
Baseline: v4.8-rc1 + [3] + [4] (the dependency is due to MAINTAINERS update, API, data)
Bootlog: http://pastebin.ubuntu.com/23071879/ (with the addition of couple of mach patches + dts)
Integrated series is available:
https://github.com/nmenon/linux-2.6-playground/commits/upstream/v4.9/tisci-clk-v1
This is the last of the three major blocks to provide functionality for K2G SoC.
TISCI reset series is a follow on series to enable DSP remoteproc and few other
peripherals.
NOTE: Tero is currently on vacation(till Aug 28) and the series
is being send on his behalf to provide a complete baseline series
for review. Obviously, all dependencies must be merged prior to
this series being merged, but any additional feedback will be much
appreciated.
Tero Kristo (3):
Documentation: dt: Add TI SCI clock driver
dt-binding: clock: Add k2g clock definitions
clk: keystone: Add sci-clk driver support
[1] http://www.ti.com/product/66ak2g02
[2] http://processors.wiki.ti.com/index.php/TISCI
[3] https://lkml.org/lkml/2016/8/19/768
[4] https://lkml.org/lkml/2016/8/19/790
[5] Documentation/devicetree/bindings/arm/arm,scpi.txt
.../devicetree/bindings/clock/ti,sci-clk.txt | 51 ++
MAINTAINERS | 3 +
drivers/clk/Kconfig | 13 +
drivers/clk/keystone/Makefile | 1 +
drivers/clk/keystone/sci-clk.c | 539 +++++++++++++++++++++
include/dt-bindings/clock/k2g.h | 234 +++++++++
6 files changed, 841 insertions(+)
create mode 100644 Documentation/devicetree/bindings/clock/ti,sci-clk.txt
create mode 100644 drivers/clk/keystone/sci-clk.c
create mode 100644 include/dt-bindings/clock/k2g.h
--
2.9.1.200.gb1ec08f
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