sun5i: Add A13 Olimex SOM Wifi board support

Add support for Olimex A13-512-SOM board, and this particular design is like A13-SOM-WIFI can mount on-top of A13-SOM.

Boot Log:
--------
U-Boot SPL 2017.05-rc2-00063-g2c831b5-dirty (May 05 2017 - 16:55:59)
DRAM: 512 MiB

CPU: 1008000000Hz, AXI/AHB/APB: 3/2/2

Trying to boot from MMC1

U-Boot 2017.05-rc2-00063-g2c831b5-dirty (May 05 2017 - 16:55:59 +0530) Allwinner Technology

CPU:   Allwinner A13 (SUN5I)
Model: Olimex A13-Olinuxino SOM Wifi
I2C:   ready
DRAM:  512 MiB
MMC:   SUNXI SD/MMC: 0

*** Warning - bad CRC, using default environment

In:    serial
Out:   serial
Err:   serial
Net:   No ethernet found.
starting USB...
USB0:   USB EHCI 1.00
USB1:   USB OHCI 1.0

scanning bus 0 for devices... 2 USB Device(s) found
scanning usb for storage devices... 0 Storage Device(s) found
Hit any key to stop autoboot: 0

---
 arch/arm/dts/Makefile                         |   1 +
 arch/arm/dts/sun5i-a13-olinuxino-som-wifi.dts | 173 ++++++++++++++++++++++++++
 board/sunxi/MAINTAINERS                       |   5 +
 configs/A13-OLinuXino-SOM-Wifi_defconfig      |  18 +++
 4 files changed, 197 insertions(+)
 create mode 100644 arch/arm/dts/sun5i-a13-olinuxino-som-wifi.dts
 create mode 100644 configs/A13-OLinuXino-SOM-Wifi_defconfig

index 959e23d..8031d97 100644
@@ -226,6 +226,7 @@ dtb-$(CONFIG_MACH_SUN5I) += \
 	sun5i-a13-inet-98v-rev2.dtb \
 	sun5i-a13-olinuxino.dtb \
 	sun5i-a13-olinuxino-micro.dtb \
+	sun5i-a13-olinuxino-som-wifi.dtb \
 	sun5i-a13-q8-tablet.dtb \
 	sun5i-a13-utoo-p66.dtb \
 	sun5i-gr8-chip-pro.dtb \

index a512a20..e263844 100644
@@ -73,6 +73,11 @@ F:	include/configs/sun9i.h
 F:	configs/Merrii_A80_Optimus_defconfig
 F:	include/configs/sun50i.h
 
+A13-OLIMEX-SOM-WIFI BOARD
+M:	Jagan Teki <[email protected]>
+S:	Maintained
+F:	configs/A13-OLinuXino-SOM-Wifi_defconfig
+
 A20-OLIMEX-SOM-EVB BOARD
 M:	Marcus Cooper <[email protected]>
 S:	Maintained

new file mode 100644
index 0000000..072d9b5
@@ -0,0 +1,18 @@
+CONFIG_ARM=y
+CONFIG_ARCH_SUNXI=y
+CONFIG_MACH_SUN5I=y
+CONFIG_DRAM_CLK=408
+CONFIG_DRAM_EMR1=0
+CONFIG_MMC0_CD_PIN="PG0"
+CONFIG_USB1_VBUS_PIN="PG11"
+CONFIG_DEFAULT_DEVICE_TREE="sun5i-a13-olinuxino-som-wifi"
+# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
+CONFIG_SPL=y
+# CONFIG_CMD_IMLS is not set
+# CONFIG_CMD_FLASH is not set
+# CONFIG_CMD_FPGA is not set
+# CONFIG_SPL_DOS_PARTITION is not set
+# CONFIG_SPL_ISO_PARTITION is not set
+# CONFIG_SPL_EFI_PARTITION is not set
+CONFIG_SUNXI_NO_PMIC=y
+CONFIG_USB_EHCI_HCD=y

1.9.1

Hi Jagan,

We've had the policy so far to send the DT to upstream's kernel first.

Most notably, the biggest issue I have with this DT is its name, which is going to be an issue if we ever change it in Linux. The SOM WiFi module is using USB, therefore it doesn't have any difference compared to the SOM itself.

Why not just create a DT and defconfig for the SOM, wifi or not?

Maxime

Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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