Re: [PATCH v3 2/4] ARM: dts: Add support for DRA72x family of devices

2014-04-28 Thread Rajendra Nayak
On Thursday 24 April 2014 06:43 PM, Arnd Bergmann wrote:
 On Thursday 24 April 2014, Rajendra Nayak wrote:

 -- DRA742
 -  compatible = ti,dra7xx, ti,dra7
 +- DRA74x
 +  compatible = ti,dra74, ti,dra7
 +
 +- DRA72x
 +  compatible = ti,dra72, ti,dra7
 
 Actually, what I meant was that you should list the fill name of the SoC,
 e.g. ti,dra742, not just ti,dra74. Leaving out the 'x' is not going
 to prevent this from breaking when you have a new dra745 that is incompatible.
 
 You can always list more strings, e.g.
 
   compatible = ti,dra745, ti,dra742, ti,dra74, ti,dra7;
 
 if you have a dra745 product that is fully compatible with dra742, but the
 important part here is that the first string must be the full name.

Okay, I will update the device compatibles to something like this..

DRA742
compatible = ti,dra742, ti,dra74, ti,dra7
DRA722
compatible = ti,dra722, ti,dra72, ti,dra7

And the evm compatibles as

DRA742 EVM:  Software Developement Board for DRA742
compatible = ti,dra7-evm, ti,dra742, ti,dra74, ti,dra7
DRA722 EVM: Software Development Board for DRA722
compatible = ti,dra72-evm, ti,dra722, ti,dra72, ti,dra7

I was also calling the .dtsi files as dra72x.dtsi and dra74x.dtsi, do you 
suggest I call
them dra742.dtsi and dra722.dtsi instead? Just that if we end up with a dra745 
which is
fully compatible with dra742, as you mentioned above, we would be using a 
dra742.dtsi for a dra745
device which could be a little confusing.

 
   Arnd
 

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Re: [PATCH v3 2/4] ARM: dts: Add support for DRA72x family of devices

2014-04-28 Thread Arnd Bergmann
On Monday 28 April 2014 11:39:22 Rajendra Nayak wrote:
 
 DRA742 EVM:  Software Developement Board for DRA742
 compatible = ti,dra7-evm, ti,dra742, ti,dra74, ti,dra7
 DRA722 EVM: Software Development Board for DRA722
 compatible = ti,dra72-evm, ti,dra722, ti,dra72, ti,dra7
 
 I was also calling the .dtsi files as dra72x.dtsi and dra74x.dtsi, do you 
 suggest I call
 them dra742.dtsi and dra722.dtsi instead? Just that if we end up with a 
 dra745 which is
 fully compatible with dra742, as you mentioned above, we would be using a 
 dra742.dtsi for a dra745
 device which could be a little confusing.

For the file names, wildcards are ok. Alternatively you could have
a dra745.dtsi that does nothing but include dra752.dtsi and override
the compatible string (if there is one to start with).

Arnd
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Re: [PATCH v3 2/4] ARM: dts: Add support for DRA72x family of devices

2014-04-28 Thread Rajendra Nayak
On Monday 28 April 2014 02:20 PM, Arnd Bergmann wrote:
 On Monday 28 April 2014 11:39:22 Rajendra Nayak wrote:

 DRA742 EVM:  Software Developement Board for DRA742
 compatible = ti,dra7-evm, ti,dra742, ti,dra74, ti,dra7
 DRA722 EVM: Software Development Board for DRA722
 compatible = ti,dra72-evm, ti,dra722, ti,dra72, ti,dra7

 I was also calling the .dtsi files as dra72x.dtsi and dra74x.dtsi, do you 
 suggest I call
 them dra742.dtsi and dra722.dtsi instead? Just that if we end up with a 
 dra745 which is
 fully compatible with dra742, as you mentioned above, we would be using a 
 dra742.dtsi for a dra745
 device which could be a little confusing.
 
 For the file names, wildcards are ok. Alternatively you could have
 a dra745.dtsi that does nothing but include dra752.dtsi and override
 the compatible string (if there is one to start with).

Okay, thanks.

 
   Arnd
 

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[PATCH v3 2/4] ARM: dts: Add support for DRA72x family of devices

2014-04-24 Thread Rajendra Nayak
DRA72x is a single core cortex A15 device with most infrastructure IPs otherwise
same as whats on the DRA74x devices.

So move the cpu nodes into dra74x.dtsi and dra72x.dtsi respectively.

Also add a minimal dra72-evm dts file.

Signed-off-by: Rajendra Nayak rna...@ti.com
Cc: linux-...@vger.kernel.org
Cc: devicet...@vger.kernel.org
---
 .../devicetree/bindings/arm/omap/omap.txt  |   14 +--
 arch/arm/boot/dts/Makefile |3 +-
 arch/arm/boot/dts/dra7-evm.dts |6 +--
 arch/arm/boot/dts/dra7.dtsi|   27 -
 arch/arm/boot/dts/dra72-evm.dts|   24 
 arch/arm/boot/dts/dra72x.dtsi  |   25 
 arch/arm/boot/dts/dra74x.dtsi  |   41 
 7 files changed, 105 insertions(+), 35 deletions(-)
 create mode 100644 arch/arm/boot/dts/dra72-evm.dts
 create mode 100644 arch/arm/boot/dts/dra72x.dtsi
 create mode 100644 arch/arm/boot/dts/dra74x.dtsi

diff --git a/Documentation/devicetree/bindings/arm/omap/omap.txt 
b/Documentation/devicetree/bindings/arm/omap/omap.txt
index 36ede19..1bc2338 100644
--- a/Documentation/devicetree/bindings/arm/omap/omap.txt
+++ b/Documentation/devicetree/bindings/arm/omap/omap.txt
@@ -79,8 +79,11 @@ SoCs:
 - OMAP5432
   compatible = ti,omap5432, ti,omap5
 
-- DRA742
-  compatible = ti,dra7xx, ti,dra7
+- DRA74x
+  compatible = ti,dra74, ti,dra7
+
+- DRA72x
+  compatible = ti,dra72, ti,dra7
 
 - AM4372
   compatible = ti,am4372, ti,am43
@@ -120,5 +123,8 @@ Boards:
 - AM437x GP EVM
   compatible = ti,am437x-gp-evm, ti,am4372, ti,am43
 
-- DRA7 EVM:  Software Developement Board for DRA7XX
-  compatible = ti,dra7-evm, ti,dra7
+- DRA74 EVM:  Software Developement Board for DRA74x
+  compatible = ti,dra7-evm, ti,dra74, ti,dra7
+
+- DRA72 EVM: Software Development Board for DRA72x
+  compatible = ti,dra72-evm, ti,dra72, ti,dra7
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 35c146f..ff98a97 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -288,7 +288,8 @@ dtb-$(CONFIG_ARCH_OMAP2PLUS) += omap2420-h4.dtb \
am3517_mt_ventoux.dtb \
am43x-epos-evm.dtb \
am437x-gp-evm.dtb \
-   dra7-evm.dtb
+   dra7-evm.dtb \
+   dra72-evm.dtb
 dtb-$(CONFIG_ARCH_ORION5X) += orion5x-lacie-ethernet-disk-mini-v2.dtb
 dtb-$(CONFIG_ARCH_PRIMA2) += prima2-evb.dtb
 dtb-$(CONFIG_ARCH_QCOM) += qcom-msm8660-surf.dtb \
diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts
index 7807429..df6a6db 100644
--- a/arch/arm/boot/dts/dra7-evm.dts
+++ b/arch/arm/boot/dts/dra7-evm.dts
@@ -7,11 +7,11 @@
  */
 /dts-v1/;
 
-#include dra7.dtsi
+#include dra74x.dtsi
 
 / {
-   model = TI DRA7;
-   compatible = ti,dra7-evm, ti,dra7;
+   model = TI DRA74x;
+   compatible = ti,dra7-evm, ti,dra74, ti,dra7;
 
memory {
device_type = memory;
diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index 1c0f8e1..e27fec7 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -33,33 +33,6 @@
serial5 = uart6;
};
 
-   cpus {
-   #address-cells = 1;
-   #size-cells = 0;
-
-   cpu0: cpu@0 {
-   device_type = cpu;
-   compatible = arm,cortex-a15;
-   reg = 0;
-
-   operating-points = 
-   /* kHzuV */
-   100 106
-   1176000 116
-   ;
-
-   clocks = dpll_mpu_ck;
-   clock-names = cpu;
-
-   clock-latency = 30; /* From omap-cpufreq driver */
-   };
-   cpu@1 {
-   device_type = cpu;
-   compatible = arm,cortex-a15;
-   reg = 1;
-   };
-   };
-
timer {
compatible = arm,armv7-timer;
interrupts = GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(2) | 
IRQ_TYPE_LEVEL_LOW),
diff --git a/arch/arm/boot/dts/dra72-evm.dts b/arch/arm/boot/dts/dra72-evm.dts
new file mode 100644
index 000..ead6440
--- /dev/null
+++ b/arch/arm/boot/dts/dra72-evm.dts
@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2014 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.
+ */
+/dts-v1/;
+
+#include dra72x.dtsi
+
+/ {
+   model = TI DRA72x;
+   compatible = ti,dra72-evm, ti,dra72, ti,dra7;
+
+   memory {
+   device_type = memory;
+   reg = 0x8000 0x4000; /* 1024 MB */
+   };
+};
+
+uart1 {
+   status = okay;
+};
diff --git 

Re: [PATCH v3 2/4] ARM: dts: Add support for DRA72x family of devices

2014-04-24 Thread Arnd Bergmann
On Thursday 24 April 2014, Rajendra Nayak wrote:
 
 -- DRA742
 -  compatible = ti,dra7xx, ti,dra7
 +- DRA74x
 +  compatible = ti,dra74, ti,dra7
 +
 +- DRA72x
 +  compatible = ti,dra72, ti,dra7

Actually, what I meant was that you should list the fill name of the SoC,
e.g. ti,dra742, not just ti,dra74. Leaving out the 'x' is not going
to prevent this from breaking when you have a new dra745 that is incompatible.

You can always list more strings, e.g.

compatible = ti,dra745, ti,dra742, ti,dra74, ti,dra7;

if you have a dra745 product that is fully compatible with dra742, but the
important part here is that the first string must be the full name.

Arnd
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