[PATCH] ARM: dts: Add STM32429i-EVAL board support

[PATCH] ARM: dts: Add STM32429i-EVAL board support

[Maxime Coquelin]

Main features of STM32429i-EVAL evaluation kit are:
 - STM32F429 Cortex-M4 MCU @180MHz
   * 2MB internal Flash
   * 256KB internal RAM
 - 32MB SDRAM
 - 16MB NOR Flash
 - 2MB SRAM
 - 4.3" TFT LCD with resistive touchscreen
 - SDCard connector (SDIO compatible)
 - 1x USB 2.0 OTG + 1x USB 1.1 OTG
 - Ethernet

Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
---
 arch/arm/boot/dts/Makefile           |  4 +-
 arch/arm/boot/dts/stm32429i-eval.dts | 75 ++++++++++++++++++++++++++++++++++++
 2 files changed, 78 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/boot/dts/stm32429i-eval.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 246473a..6ff9508 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -544,7 +544,9 @@ dtb-$(CONFIG_ARCH_STI) += \
 	stih416-b2020.dtb \
 	stih416-b2020e.dtb \
 	stih418-b2199.dtb
-dtb-$(CONFIG_ARCH_STM32)+= stm32f429-disco.dtb
+dtb-$(CONFIG_ARCH_STM32)+= \
+	stm32f429-disco.dtb \
+	stm32429i-eval.dtb
 dtb-$(CONFIG_MACH_SUN4I) += \
 	sun4i-a10-a1000.dtb \
 	sun4i-a10-ba10-tvbox.dtb \
diff --git a/arch/arm/boot/dts/stm32429i-eval.dts b/arch/arm/boot/dts/stm32429i-eval.dts
new file mode 100644
index 0000000..3436c60
--- /dev/null
+++ b/arch/arm/boot/dts/stm32429i-eval.dts
@@ -0,0 +1,75 @@
+/*
+ * Copyright 2015 - Maxime Coquelin <mcoquelin.stm32@gmail.com>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ *  a) This file is free software; you can redistribute it and/or
+ *     modify it under the terms of the GNU General Public License as
+ *     published by the Free Software Foundation; either version 2 of the
+ *     License, or (at your option) any later version.
+ *
+ *     This file is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ *     You should have received a copy of the GNU General Public
+ *     License along with this file; if not, write to the Free
+ *     Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ *     MA 02110-1301 USA
+ *
+ * Or, alternatively,
+ *
+ *  b) Permission is hereby granted, free of charge, to any person
+ *     obtaining a copy of this software and associated documentation
+ *     files (the "Software"), to deal in the Software without
+ *     restriction, including without limitation the rights to use,
+ *     copy, modify, merge, publish, distribute, sublicense, and/or
+ *     sell copies of the Software, and to permit persons to whom the
+ *     Software is furnished to do so, subject to the following
+ *     conditions:
+ *
+ *     The above copyright notice and this permission notice shall be
+ *     included in all copies or substantial portions of the Software.
+ *
+ *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *     OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+#include "stm32f429.dtsi"
+
+/ {
+	model = "STMicroelectronics STM32429i-EVAL board";
+	compatible = "st,stm32429i-eval", "st,stm32f429";
+
+	chosen {
+		bootargs = "console=ttyS0,115200 root=/dev/ram rdinit=/linuxrc";
+		linux,stdout-path = &usart1;
+	};
+
+	memory {
+		reg = <0xc0000000 0x2000000>;
+	};
+
+	aliases {
+		serial0 = &usart1;
+	};
+};
+
+&clk_hse {
+	clock-frequency = <25000000>;
+};
+
+&usart1 {
+	status = "okay";
+};
-- 
1.9.1

Re: [PATCH] ARM: dts: Add STM32429i-EVAL board support

[Maxime Coquelin]

On 07/12/2015 11:39 AM, Maxime Coquelin wrote:
> Main features of STM32429i-EVAL evaluation kit are:
>   - STM32F429 Cortex-M4 MCU @180MHz
>     * 2MB internal Flash
>     * 256KB internal RAM
>   - 32MB SDRAM
>   - 16MB NOR Flash
>   - 2MB SRAM
>   - 4.3" TFT LCD with resistive touchscreen
>   - SDCard connector (SDIO compatible)
>   - 1x USB 2.0 OTG + 1x USB 1.1 OTG
>   - Ethernet
>
> Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
> ---
>   arch/arm/boot/dts/Makefile           |  4 +-
>   arch/arm/boot/dts/stm32429i-eval.dts | 75 ++++++++++++++++++++++++++++++++++++
>   2 files changed, 78 insertions(+), 1 deletion(-)
>   create mode 100644 arch/arm/boot/dts/stm32429i-eval.dts
>
>
Applied to next/dt-for-v4.3.

Best regards,
Maxime

Re: [PATCH] ARM: dts: Add STM32429i-EVAL board support

[Olof Johansson]

Hi,

On Sun, Jul 12, 2015 at 2:39 AM, Maxime Coquelin
<mcoquelin.stm32@gmail.com> wrote:

> +/ {
> +       model = "STMicroelectronics STM32429i-EVAL board";
> +       compatible = "st,stm32429i-eval", "st,stm32f429";
> +
> +       chosen {
> +               bootargs = "console=ttyS0,115200 root=/dev/ram rdinit=/linuxrc";
> +               linux,stdout-path = &usart1;

You should use stdout-path here instead, and with that you'll no
longer need the console arg in the bootargs.

See: https://www.kernel.org/doc/Documentation/devicetree/bindings/chosen.txt


-Olof

Re: [PATCH] ARM: dts: Add STM32429i-EVAL board support

[Maxime Coquelin]

Hi Olof,

2015-07-23 1:42 GMT+02:00 Olof Johansson <olof@lixom.net>:
> Hi,
>
> On Sun, Jul 12, 2015 at 2:39 AM, Maxime Coquelin
> <mcoquelin.stm32@gmail.com> wrote:
>
>> +/ {
>> +       model = "STMicroelectronics STM32429i-EVAL board";
>> +       compatible = "st,stm32429i-eval", "st,stm32f429";
>> +
>> +       chosen {
>> +               bootargs = "console=ttyS0,115200 root=/dev/ram rdinit=/linuxrc";
>> +               linux,stdout-path = &usart1;
>
> You should use stdout-path here instead, and with that you'll no
> longer need the console arg in the bootargs.
>
> See: https://www.kernel.org/doc/Documentation/devicetree/bindings/chosen.txt

Thanks for the hint! I was not aware of that.

I will send the new pull request fixing this, and also fixing
STM32F429 Discovery board shortly.

Thanks,
Maxime