[PATCH 0/3] Add initial support for TI's K2G SOC

[PATCH 0/3] Add initial support for TI's K2G SOC

[Franklin S Cooper Jr]

This patchset provides initial support for K2G the latest addition to Texas
Instruments Keystone 2 product family. These patches are built on top of
the latest 4.5-rc2 commit.

K2G is a A15 + C66x DSP processor built to address the needs of industrial
communication and control, automotive and performance audio applications.

Supported peripherals include MMC,USB2.0,DCAN,DSS,McASP and PCIe SS.

The technical reference manual for K2G can be found here:
http://www.ti.com/lit/ug/spruhy8/spruhy8.pdf

This patchset provides the ability to boot K2G's general purpose evm using
a ramfs filesystem.

Additional patches will follow this series that will add support for new
drivers that will enable additional peripherals and features

K2G Bootlog on 4.5-rc2:
http://pastebin.ubuntu.com/14861580/

To show no regressions:
K2E Bootlog: http://pastebin.ubuntu.com/14861523/
Other Keystone 2 devices need this partial revert discussed in the below
thread.
http://marc.info/?l=linux-netdev&m=145444838030865&w=2

This is an issue seen on the netcp driver and has nothing to do with this
patch set.

Nishanth Menon (1):
  ARM: keystone: Create new binding for K2G SoC

Vitaly Andrianov (2):
  ARM: dts: keystone: Add Initial DT support for TI K2G SoC family
  ARM: dts: keystone: Add minimum support for K2G evm

 .../devicetree/bindings/arm/keystone/keystone.txt  |  5 ++
 arch/arm/boot/dts/Makefile                         |  3 +-
 arch/arm/boot/dts/k2g-evm.dts                      | 32 ++++++++
 arch/arm/boot/dts/k2g.dtsi                         | 89 ++++++++++++++++++++++
 arch/arm/mach-keystone/keystone.c                  |  1 +
 5 files changed, 129 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/boot/dts/k2g-evm.dts
 create mode 100644 arch/arm/boot/dts/k2g.dtsi

-- 
2.7.0

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[PATCH 1/3] ARM: keystone: Create new binding for K2G SoC

[Franklin S Cooper Jr]

From: Nishanth Menon <nm-l0cyMroinI0@public.gmane.org>

K2G SoC family is the newest version of the Keystone family of processors.

The technical reference manual for K2G can be found here:
http://www.ti.com/lit/ug/spruhy8/spruhy8.pdf

Add new bindings for K2G and the K2G evm. Also document these new bindings.

Signed-off-by: Nishanth Menon <nm-l0cyMroinI0@public.gmane.org>
Signed-off-by: Franklin S Cooper Jr <fcooper-l0cyMroinI0@public.gmane.org>
---
 Documentation/devicetree/bindings/arm/keystone/keystone.txt | 5 +++++
 arch/arm/mach-keystone/keystone.c                           | 1 +
 2 files changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/keystone/keystone.txt b/Documentation/devicetree/bindings/arm/keystone/keystone.txt
index 3090a8a..48f6703 100644
--- a/Documentation/devicetree/bindings/arm/keystone/keystone.txt
+++ b/Documentation/devicetree/bindings/arm/keystone/keystone.txt
@@ -22,6 +22,8 @@ SoCs:
    compatible = "ti,k2l", "ti,keystone"
 - Keystone 2 Edison
    compatible = "ti,k2e", "ti,keystone"
+- K2G
+   compatible = "ti,k2g", "ti,keystone"
 
 Boards:
 -  Keystone 2 Hawking/Kepler EVM
@@ -32,3 +34,6 @@ Boards:
 
 -  Keystone 2 Edison EVM
    compatible = "ti,k2e-evm", "ti,k2e", "ti,keystone"
+
+-  K2G EVM
+   compatible = "ti,k2g-evm", "ti,k2g", "ti-keystone"
diff --git a/arch/arm/mach-keystone/keystone.c b/arch/arm/mach-keystone/keystone.c
index c279293..55cb199 100644
--- a/arch/arm/mach-keystone/keystone.c
+++ b/arch/arm/mach-keystone/keystone.c
@@ -100,6 +100,7 @@ static const char *const keystone_match[] __initconst = {
 	"ti,k2hk",
 	"ti,k2e",
 	"ti,k2l",
+	"ti,k2g",
 	"ti,keystone",
 	NULL,
 };
-- 
2.7.0

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[PATCH 2/3] ARM: dts: keystone: Add Initial DT support for TI K2G SoC family

[Franklin S Cooper Jr]

From: Vitaly Andrianov <vitalya-l0cyMroinI0@public.gmane.org>

K2G is the newest addition of TI's Keystone 2 product family. It is a
single core Cortex A15 and a C66x DSP.

K2G supports standard peripherals such as SPI, UART, MMC and USB 2.0.

Includes two dual-core Programmable Real-time Unit and Industrial
Communication Subsystems (PRU-ICSS).

The technical reference manual for K2G can be found here:
http://www.ti.com/lit/ug/spruhy8/spruhy8.pdf

This device is targeted for a variety of applications which include, but
are not limited to:

Home audio
Professional audio
Industrial Programmable Logic Control

The peripheral nodes that have been included in this patch have been
tested during bring-up. Since all peripherals will not necessarily be
used on all boards, disable all peripherals by default. This allow
the board dts to selectively choose which peripherals it wants to
enable.

This SoC now uses the next generation of power management architecture
with the PM functionality located in a microcontroller embedded in the SOC.

Support for this new PM architecture along with other peripherals will be
added in future patches.

Signed-off-by: Vitaly Andrianov <vitalya-l0cyMroinI0@public.gmane.org>
Signed-off-by: Franklin S Cooper Jr <fcooper-l0cyMroinI0@public.gmane.org>
---
 arch/arm/boot/dts/k2g.dtsi | 89 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 89 insertions(+)
 create mode 100644 arch/arm/boot/dts/k2g.dtsi

diff --git a/arch/arm/boot/dts/k2g.dtsi b/arch/arm/boot/dts/k2g.dtsi
new file mode 100644
index 0000000..7ff2796
--- /dev/null
+++ b/arch/arm/boot/dts/k2g.dtsi
@@ -0,0 +1,89 @@
+/*
+ * Device Tree Source for K2G SOC
+ *
+ * Copyright (C) 2016 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include "skeleton.dtsi"
+
+/ {
+	compatible = "ti,k2g","ti,keystone";
+	model = "Texas Instruments K2G SoC";
+	#address-cells = <2>;
+	#size-cells = <2>;
+	interrupt-parent = <&gic>;
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu@0 {
+			compatible = "arm,cortex-a15";
+			device_type = "cpu";
+			reg = <0>;
+		};
+	};
+
+	gic: interrupt-controller@02561000 {
+		compatible = "arm,cortex-a15-gic";
+		#interrupt-cells = <3>;
+		interrupt-controller;
+		reg = <0x0 0x02561000 0x0 0x1000>,
+		      <0x0 0x02562000 0x0 0x2000>,
+		      <0x0 0x02564000 0x0 0x1000>,
+		      <0x0 0x02566000 0x0 0x2000>;
+		interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(4) |
+				IRQ_TYPE_LEVEL_HIGH)>;
+	};
+
+	timer {
+		compatible = "arm,armv7-timer";
+		interrupts =
+			<GIC_PPI 13
+				(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+			<GIC_PPI 14
+				(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+			<GIC_PPI 11
+				(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+			<GIC_PPI 10
+				(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
+	};
+
+	pmu {
+		compatible = "arm,cortex-a15-pmu";
+		interrupts = <GIC_SPI 4 IRQ_TYPE_EDGE_RISING>;
+	};
+
+	soc {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "ti,keystone","simple-bus";
+		ranges = <0x0 0x0 0x0 0xc0000000>;
+		dma-ranges = <0x80000000 0x8 0x00000000 0x80000000>;
+
+		uart0: serial@02530c00 {
+			compatible = "ns16550a";
+			current-speed = <115200>;
+			reg-shift = <2>;
+			reg-io-width = <4>;
+			reg = <0x02530c00 0x100>;
+			interrupts = <GIC_SPI 164 IRQ_TYPE_EDGE_RISING>;
+			clock-frequency = <200000000>;
+			status = "disabled";
+		};
+	};
+};
-- 
2.7.0

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[PATCH 3/3] ARM: dts: keystone: Add minimum support for K2G evm

[Franklin S Cooper Jr]

From: Vitaly Andrianov <vitalya-l0cyMroinI0@public.gmane.org>

Add barebones K2G evm dts. This DTS allows the board to boot using a
ram based filesystem.

The technical reference manual for K2G can be found here:
http://www.ti.com/lit/ug/spruhy8/spruhy8.pdf

Signed-off-by: Vitaly Andrianov <vitalya-l0cyMroinI0@public.gmane.org>
Signed-off-by: Franklin S Cooper Jr <fcooper-l0cyMroinI0@public.gmane.org>
---
 arch/arm/boot/dts/Makefile    |  3 ++-
 arch/arm/boot/dts/k2g-evm.dts | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 34 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/boot/dts/k2g-evm.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index a4a6d70..8343f66 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -156,7 +156,8 @@ dtb-$(CONFIG_ARCH_INTEGRATOR) += \
 dtb-$(CONFIG_ARCH_KEYSTONE) += \
 	k2hk-evm.dtb \
 	k2l-evm.dtb \
-	k2e-evm.dtb
+	k2e-evm.dtb \
+	k2g-evm.dtb
 dtb-$(CONFIG_MACH_KIRKWOOD) += \
 	kirkwood-b3.dtb \
 	kirkwood-blackarmor-nas220.dtb \
diff --git a/arch/arm/boot/dts/k2g-evm.dts b/arch/arm/boot/dts/k2g-evm.dts
new file mode 100644
index 0000000..99663b3
--- /dev/null
+++ b/arch/arm/boot/dts/k2g-evm.dts
@@ -0,0 +1,32 @@
+/*
+ * Device Tree Source for K2G EVM
+ *
+ * Copyright (C) 2016 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+/dts-v1/;
+
+#include "k2g.dtsi"
+
+/ {
+	compatible =  "ti,k2g-evm", "ti,k2g", "ti,keystone";
+	model = "Texas Instruments K2G General Purpose EVM";
+
+	memory {
+		device_type = "memory";
+		reg = <0x00000008 0x00000000 0x00000000 0x80000000>;
+	};
+
+};
+
+&uart0 {
+	status = "okay";
+};
-- 
2.7.0

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Re: [PATCH 0/3] Add initial support for TI's K2G SOC

[santosh shilimkar]

On 2/2/2016 3:25 PM, Franklin S Cooper Jr wrote:
> This patchset provides initial support for K2G the latest addition to Texas
> Instruments Keystone 2 product family. These patches are built on top of
> the latest 4.5-rc2 commit.
>
> K2G is a A15 + C66x DSP processor built to address the needs of industrial
> communication and control, automotive and performance audio applications.
>
> Supported peripherals include MMC,USB2.0,DCAN,DSS,McASP and PCIe SS.
>
> The technical reference manual for K2G can be found here:
> http://www.ti.com/lit/ug/spruhy8/spruhy8.pdf
>
> This patchset provides the ability to boot K2G's general purpose evm using
> a ramfs filesystem.
>
> Additional patches will follow this series that will add support for new
> drivers that will enable additional peripherals and features
>
> K2G Bootlog on 4.5-rc2:
> http://pastebin.ubuntu.com/14861580/
>
Quick scan of the series looks fine to me. I will wait for others to
come back for a week or so and then add to 4.6 queue.

Thanks for the series !!

Reagrds,
Santosh
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Re: [PATCH 0/3] Add initial support for TI's K2G SOC

[santosh shilimkar]

On 2/2/2016 3:59 PM, santosh shilimkar wrote:
> On 2/2/2016 3:25 PM, Franklin S Cooper Jr wrote:
>> This patchset provides initial support for K2G the latest addition to
>> Texas
>> Instruments Keystone 2 product family. These patches are built on top of
>> the latest 4.5-rc2 commit.
>>
>> K2G is a A15 + C66x DSP processor built to address the needs of
>> industrial
>> communication and control, automotive and performance audio applications.
>>
>> Supported peripherals include MMC,USB2.0,DCAN,DSS,McASP and PCIe SS.
>>
>> The technical reference manual for K2G can be found here:
>> http://www.ti.com/lit/ug/spruhy8/spruhy8.pdf
>>
>> This patchset provides the ability to boot K2G's general purpose evm
>> using
>> a ramfs filesystem.
>>
>> Additional patches will follow this series that will add support for new
>> drivers that will enable additional peripherals and features
>>
>> K2G Bootlog on 4.5-rc2:
>> http://pastebin.ubuntu.com/14861580/
>>
> Quick scan of the series looks fine to me. I will wait for others to
> come back for a week or so and then add to 4.6 queue.
>
> Thanks for the series !!
>
You should start seeing the patches in linux-next build soon.

Reagrds,
Santosh
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Re: [PATCH 1/3] ARM: keystone: Create new binding for K2G SoC

[Rob Herring]

On Tue, Feb 02, 2016 at 05:25:15PM -0600, Franklin S Cooper Jr wrote:
> From: Nishanth Menon <nm-l0cyMroinI0@public.gmane.org>
> 
> K2G SoC family is the newest version of the Keystone family of processors.
> 
> The technical reference manual for K2G can be found here:
> http://www.ti.com/lit/ug/spruhy8/spruhy8.pdf
> 
> Add new bindings for K2G and the K2G evm. Also document these new bindings.
> 
> Signed-off-by: Nishanth Menon <nm-l0cyMroinI0@public.gmane.org>
> Signed-off-by: Franklin S Cooper Jr <fcooper-l0cyMroinI0@public.gmane.org>
> ---
>  Documentation/devicetree/bindings/arm/keystone/keystone.txt | 5 +++++
>  arch/arm/mach-keystone/keystone.c                           | 1 +
>  2 files changed, 6 insertions(+)

Acked-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
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