On 15.08.2018 16:36, Daniel Schwierzeck wrote:


On 10.08.2018 09:48, Stefan Roese wrote:
The Gardena Smart-Gateway boards have a MT7688 SoC with 128 MiB of RAM
and 8 MiB of flash (SPI NOR) and additional 128MiB SPI NAND storage.

This patch also includes 2 targets. One is the target that can be
programmed into the SPI NOR flash and a 2nd target "xxx-ram" is
added to support loading and booting via an already running U-Boot
version. This allows easy development and testing without the
need to flash the image each time.

Signed-off-by: Stefan Roese <s...@denx.de>
Cc: Daniel Schwierzeck <daniel.schwierz...@gmail.com>
---
v2:
- No change

  .../mips/dts/gardena-smart-gateway-mt7688.dts | 54 +++++++++++++++
  arch/mips/mach-mt7620/Kconfig                 |  9 +++
  board/gardena/smart-gateway-mt7688/Kconfig    | 12 ++++
  .../gardena/smart-gateway-mt7688/MAINTAINERS  |  8 +++
  board/gardena/smart-gateway-mt7688/Makefile   |  3 +
  board/gardena/smart-gateway-mt7688/board.c    | 18 +++++
  ...gardena-smart-gateway-mt7688-ram_defconfig | 68 +++++++++++++++++++
  .../gardena-smart-gateway-mt7688_defconfig    | 67 ++++++++++++++++++
  .../configs/gardena-smart-gateway-mt7688.h    | 56 +++++++++++++++
  9 files changed, 295 insertions(+)
  create mode 100644 arch/mips/dts/gardena-smart-gateway-mt7688.dts
  create mode 100644 board/gardena/smart-gateway-mt7688/Kconfig
  create mode 100644 board/gardena/smart-gateway-mt7688/MAINTAINERS
  create mode 100644 board/gardena/smart-gateway-mt7688/Makefile
  create mode 100644 board/gardena/smart-gateway-mt7688/board.c
  create mode 100644 configs/gardena-smart-gateway-mt7688-ram_defconfig
  create mode 100644 configs/gardena-smart-gateway-mt7688_defconfig
  create mode 100644 include/configs/gardena-smart-gateway-mt7688.h

diff --git a/arch/mips/dts/gardena-smart-gateway-mt7688.dts 
b/arch/mips/dts/gardena-smart-gateway-mt7688.dts
new file mode 100644
index 0000000000..6b2600a446
--- /dev/null
+++ b/arch/mips/dts/gardena-smart-gateway-mt7688.dts
@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2018 Stefan Roese <s...@denx.de>
+ */
+
+/dts-v1/;
+
+#include "mt7628a.dtsi"
+
+/ {
+       compatible = "gardena,smart-gateway-mt7688", "ralink,mt7628a-soc";
+       model = "Gardena smart-Gateway-MT7688";
+
+       aliases {
+               serial0 = &uart0;
+               spi0 = &spi0;
+       };
+
+       memory@0 {
+               device_type = "memory";
+               reg = <0x0 0x08000000>;
+       };
+
+       chosen {
+               bootargs = "console=ttyS0,57600";
+               stdout-path = &uart0;
+       };
+};
+
+&uart0 {
+       status = "okay";
+       clock-frequency = <40000000>;
+};
+
+&spi0 {
+       status = "okay";
+       num-cs = <2>;
+
+       spi-flash@0 {
+               #address-cells = <1>;
+               #size-cells = <1>;
+               compatible = "spi-flash", "jedec,spi-nor";
+               spi-max-frequency = <25000000>;
+               reg = <0>;
+       };
+
+       spi-nand@1 {
+               #address-cells = <1>;
+               #size-cells = <1>;
+               compatible = "spi-nand";
+               spi-max-frequency = <25000000>;
+               reg = <1>;
+       };
+};
diff --git a/arch/mips/mach-mt7620/Kconfig b/arch/mips/mach-mt7620/Kconfig
index ef1211d172..13a7bd2cc0 100644
--- a/arch/mips/mach-mt7620/Kconfig
+++ b/arch/mips/mach-mt7620/Kconfig
@@ -21,6 +21,14 @@ endchoice
  choice
        prompt "Board select"
+config BOARD_GARDENA_SMART_GATEWAY_MT7688
+       bool "Gardena Smart Gateway"
+       depends on SOC_MT7620
+       select SUPPORTS_BOOT_RAM
+       help
+         Gardena Smart Gateway boards have a MT7688 SoC with 128 MiB of RAM
+         and 8 MiB of flash (SPI NOR) and additional SPI NAND storage.
+
  config BOARD_LINKIT_SMART_7688
        bool "LinkIt Smart 7688"
        depends on SOC_MT7620
@@ -121,6 +129,7 @@ endchoice
  config SUPPORTS_BOOT_RAM
        bool
+source "board/gardena/smart-gateway-mt7688/Kconfig"
  source "board/seeed/linkit-smart-7688/Kconfig"
endmenu
diff --git a/board/gardena/smart-gateway-mt7688/Kconfig 
b/board/gardena/smart-gateway-mt7688/Kconfig
new file mode 100644
index 0000000000..3653f8aadb
--- /dev/null
+++ b/board/gardena/smart-gateway-mt7688/Kconfig
@@ -0,0 +1,12 @@
+if BOARD_GARDENA_SMART_GATEWAY_MT7688
+
+config SYS_BOARD
+       default "smart-gateway-mt7688"
+
+config SYS_VENDOR
+       default "gardena"
+
+config SYS_CONFIG_NAME
+       default "gardena-smart-gateway-mt7688"
+
+endif
diff --git a/board/gardena/smart-gateway-mt7688/MAINTAINERS 
b/board/gardena/smart-gateway-mt7688/MAINTAINERS
new file mode 100644
index 0000000000..bbb491c1ce
--- /dev/null
+++ b/board/gardena/smart-gateway-mt7688/MAINTAINERS
@@ -0,0 +1,8 @@
+GARDENA_SMART_GATEWAY_MT7688 BOARD
+M:     Stefan Roese <s...@denx.de>
+S:     Maintained
+F:     board/gardena/smart-gateway-mt7688
+F:     include/configs/gardena-smart-gateway-mt7688.h
+F:     configs/gardena-smart-gateway-mt7688_defconfig
+F:     configs/gardena-smart-gateway-mt7688-ram_defconfig
+F:     arch/mips/dts/gardena-smart-gateway-mt7688.dts
diff --git a/board/gardena/smart-gateway-mt7688/Makefile 
b/board/gardena/smart-gateway-mt7688/Makefile
new file mode 100644
index 0000000000..70cd7a8e56
--- /dev/null
+++ b/board/gardena/smart-gateway-mt7688/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0+
+
+obj-y += board.o
diff --git a/board/gardena/smart-gateway-mt7688/board.c 
b/board/gardena/smart-gateway-mt7688/board.c
new file mode 100644
index 0000000000..a62dc654f2
--- /dev/null
+++ b/board/gardena/smart-gateway-mt7688/board.c
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2018 Stefan Roese <s...@denx.de>
+ */
+
+#include <common.h>
+#include <asm/io.h>
+
+void board_debug_uart_init(void)
+{
+       /* Nothing to be done here for this board (no UART setup etc) */
+}
+
+int board_early_init_f(void)
+{
+       /* Nothing to be done here for this board (no UART setup etc) */
+       return 0;
+}

do you plan to implement something? Otherwise you could drop those
functions and if you don't enable CONFIG_BOARD_EARLY_INIT_F and
CONFIG_DEBUG_UART_BOARD_INIT.

I'm currently working on some other MUX setup (etc) here for this
board. So its very likely that something will be added. But you
are right, DEBUG_UART_BOARD_INIT can very likely be dropped.

Thanks,
Stefan
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