board: amlogic: add support for S400 board

The S400 board is the Amlogic AXG SoC reference board including :
 - Amlogic A113DX ARM Cortex-A53 quad-core SoC @ 1.2GHz
 - 1GB DDR4 SDRAM
 - 10/100 Ethernet
 - 2 x USB 2.0 Host
 - eMMC
 - Infrared receiver
 - SDIO WiFi Module
 - MIPI DSI Connector
 - Audio HAT Connector
 - PCI-E M.2 Connectors

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>

4 files changed, 155 insertions, 0 deletions

diff --git a/board/amlogic/s400/MAINTAINERS b/board/amlogic/s400/MAINTAINERS
new file mode 100644
index 0000000000..9ca9836016
--- /dev/null
+++ b/board/amlogic/s400/MAINTAINERS
@@ -0,0 +1,6 @@
+S400
+M:	Neil Armstrong <narmstrong@baylibre.com>
+S:	Maintained
+F:	board/amlogic/s400/
+F:	include/configs/s400.h
+F:	configs/s400_defconfig
diff --git a/board/amlogic/s400/Makefile b/board/amlogic/s400/Makefile
new file mode 100644
index 0000000000..bf03862b90
--- /dev/null
+++ b/board/amlogic/s400/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# (C) Copyright 2016 BayLibre, SAS
+# Author: Neil Armstrong <narmstrong@baylibre.com>
+
+obj-y	:= s400.o
diff --git a/board/amlogic/s400/README b/board/amlogic/s400/README
new file mode 100644
index 0000000000..ab21998dc8
--- /dev/null
+++ b/board/amlogic/s400/README
@@ -0,0 +1,110 @@
+U-Boot for Amlogic S400
+=======================
+
+S400 is a reference board manufactured by Amlogic with the following
+specifications:
+
+ - Amlogic A113DX ARM Cortex-A53 quad-core SoC @ 1.2GHz
+ - 1GB DDR4 SDRAM
+ - 10/100 Ethernet
+ - 2 x USB 2.0 Host
+ - eMMC
+ - Infrared receiver
+ - SDIO WiFi Module
+ - MIPI DSI Connector
+ - Audio HAT Connector
+ - PCI-E M.2 Connectors
+
+Schematics are available from Amlogic on demand.
+
+Currently the u-boot port supports the following devices:
+ - serial
+ - eMMC
+ - Ethernet
+ - I2C
+ - Regulators
+ - Reset controller
+ - Clock controller
+ - USB Host
+ - ADC
+
+u-boot compilation
+==================
+
+ > export ARCH=arm
+ > export CROSS_COMPILE=aarch64-none-elf-
+ > make s400_defconfig
+ > make
+
+Image creation
+==============
+
+Amlogic doesn't provide sources for the firmware and for tools needed
+to create the bootloader image, so it is necessary to obtain them from
+the git tree published by the board vendor:
+
+ > wget https://releases.linaro.org/archive/13.11/components/toolchain/binaries/gcc-linaro-aarch64-none-elf-4.8-2013.11_linux.tar.xz
+ > wget https://releases.linaro.org/archive/13.11/components/toolchain/binaries/gcc-linaro-arm-none-eabi-4.8-2013.11_linux.tar.xz
+ > tar xvfJ gcc-linaro-aarch64-none-elf-4.8-2013.11_linux.tar.xz
+ > tar xvfJ gcc-linaro-arm-none-eabi-4.8-2013.11_linux.tar.xz
+ > export PATH=$PWD/gcc-linaro-aarch64-none-elf-4.8-2013.11_linux/bin:$PWD/gcc-linaro-arm-none-eabi-4.8-2013.11_linux/bin:$PATH
+ > git clone https://github.com/BayLibre/u-boot.git -b n-amlogic-openlinux-20170606 amlogic-u-boot
+ > cd amlogic-u-boot
+ > make axg_s400_v1_defconfig
+ > make
+ > export FIPDIR=$PWD/fip
+
+Go back to mainline U-boot source tree then :
+ > mkdir fip
+
+ > cp $FIPDIR/axg/bl2.bin fip/
+ > cp $FIPDIR/axg/acs.bin fip/
+ > cp $FIPDIR/axg/bl21.bin fip/
+ > cp $FIPDIR/axg/bl30.bin fip/
+ > cp $FIPDIR/axg/bl301.bin fip/
+ > cp $FIPDIR/axg/bl31.img fip/
+ > cp u-boot.bin fip/bl33.bin
+
+ > $FIPDIR/blx_fix.sh \
+	fip/bl30.bin \
+	fip/zero_tmp \
+	fip/bl30_zero.bin \
+	fip/bl301.bin \
+	fip/bl301_zero.bin \
+	fip/bl30_new.bin \
+	bl30
+
+ > $FIPDIR/acs_tool.pyc fip/bl2.bin fip/bl2_acs.bin fip/acs.bin 0
+
+ > $FIPDIR/blx_fix.sh \
+	fip/bl2_acs.bin \
+	fip/zero_tmp \
+	fip/bl2_zero.bin \
+	fip/bl21.bin \
+	fip/bl21_zero.bin \
+	fip/bl2_new.bin \
+	bl2
+
+ > $FIPDIR/axg/aml_encrypt_axg --bl3sig --input fip/bl30_new.bin \
+					--output fip/bl30_new.bin.enc \
+					--level v3 --type bl30
+ > $FIPDIR/axg/aml_encrypt_axg --bl3sig --input fip/bl31.img \
+					--output fip/bl31.img.enc \
+					--level v3 --type bl31
+ > $FIPDIR/axg/aml_encrypt_axg --bl3sig --input fip/bl33.bin --compress lz4 \
+					--output fip/bl33.bin.enc \
+					--level v3 --type bl33
+ > $FIPDIR/axg/aml_encrypt_axg --bl2sig --input fip/bl2_new.bin \
+					--output fip/bl2.n.bin.sig
+ > $FIPDIR/axg/aml_encrypt_axg --bootmk \
+		--output fip/u-boot.bin \
+		--bl2 fip/bl2.n.bin.sig \
+		--bl30 fip/bl30_new.bin.enc \
+		--bl31 fip/bl31.img.enc \
+		--bl33 fip/bl33.bin.enc --level v3
+
+and then write the image to SD with:
+
+ > DEV=/dev/your_sd_device
+ > dd if=fip/u-boot.bin.sd.bin of=$DEV conv=fsync,notrunc bs=512 skip=1 seek=1
+ > dd if=fip/u-boot.bin.sd.bin of=$DEV conv=fsync,notrunc bs=1 count=444
diff --git a/board/amlogic/s400/s400.c b/board/amlogic/s400/s400.c
new file mode 100644
index 0000000000..c2b50f6c17
--- /dev/null
+++ b/board/amlogic/s400/s400.c
@@ -0,0 +1,33 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2016 BayLibre, SAS
+ * Author: Neil Armstrong <narmstrong@baylibre.com>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <environment.h>
+#include <asm/io.h>
+#include <asm/arch/axg.h>
+#include <asm/arch/sm.h>
+#include <asm/arch/eth.h>
+#include <asm/arch/mem.h>
+
+int board_init(void)
+{
+	return 0;
+}
+
+int misc_init_r(void)
+{
+	meson_eth_init(PHY_INTERFACE_MODE_RGMII, 0);
+
+	return 0;
+}
+
+int ft_board_setup(void *blob, bd_t *bd)
+{
+	meson_init_reserved_memory(blob);
+
+	return 0;
+}