[U-Boot] [PATCH u-boot v3 5/5] arm: Add Khadas VIM support based on Meson GXL family

Neil Armstrong
2017-11-27T09:16:20Z

This adds platform code for the Khadas VIM board based on a
Meson GXL (S905X) SoC with the Meson GXL configuration.

This initial submission supports UART, MMC/SDCard and Ethernet with the
Internal RMII PHY.

The meson-gxl-s905x-khadas-vim.dts is synchronised from the linux 4.13
stable tree as of 4.13.8.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
---
arch/arm/dts/Makefile | 3 +-
arch/arm/dts/meson-gxl-s905x-khadas-vim.dts | 137 ++++++++++++++++++++++++++++
arch/arm/mach-meson/Kconfig | 9 ++
board/amlogic/khadas-vim/Kconfig | 12 +++
board/amlogic/khadas-vim/MAINTAINERS | 6 ++
board/amlogic/khadas-vim/Makefile | 8 ++
board/amlogic/khadas-vim/README | 96 +++++++++++++++++++
board/amlogic/khadas-vim/khadas-vim.c | 49 ++++++++++
configs/khadas-vim_defconfig | 35 +++++++
include/configs/khadas-vim.h | 21 +++++
10 files changed, 375 insertions(+), 1 deletion(-)
create mode 100644 arch/arm/dts/meson-gxl-s905x-khadas-vim.dts
create mode 100644 board/amlogic/khadas-vim/Kconfig
create mode 100644 board/amlogic/khadas-vim/MAINTAINERS
create mode 100644 board/amlogic/khadas-vim/Makefile
create mode 100644 board/amlogic/khadas-vim/README
create mode 100644 board/amlogic/khadas-vim/khadas-vim.c
create mode 100644 configs/khadas-vim_defconfig
create mode 100644 include/configs/khadas-vim.h

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 1845552..b44a915 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -56,7 +56,8 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += \
dtb-$(CONFIG_ARCH_MESON) += \
meson-gxbb-odroidc2.dtb \
meson-gxl-s905x-p212.dtb \
- meson-gxl-s905x-libretech-cc.dtb
+ meson-gxl-s905x-libretech-cc.dtb \
+ meson-gxl-s905x-khadas-vim.dtb
dtb-$(CONFIG_TEGRA) += tegra20-harmony.dtb \
tegra20-medcom-wide.dtb \
tegra20-paz00.dtb \
diff --git a/arch/arm/dts/meson-gxl-s905x-khadas-vim.dts b/arch/arm/dts/meson-gxl-s905x-khadas-vim.dts
new file mode 100644
index 0000000..94567eb
--- /dev/null
+++ b/arch/arm/dts/meson-gxl-s905x-khadas-vim.dts
@@ -0,0 +1,137 @@
+/*
+ * Copyright (c) 2017 Martin Blumenstingl <martin.blumenstingl@googlemail.com>.
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/input/input.h>
+
+#include "meson-gxl-s905x-p212.dtsi"
+
+/ {
+ compatible = "khadas,vim", "amlogic,s905x", "amlogic,meson-gxl";
+ model = "Khadas VIM";
+
+ adc-keys {
+ compatible = "adc-keys";
+ io-channels = <&saradc 0>;
+ io-channel-names = "buttons";
+ keyup-threshold-microvolt = <1710000>;
+
+ button-function {
+ label = "Function";
+ linux,code = <KEY_FN>;
+ press-threshold-microvolt = <10000>;
+ };
+ };
+
+ aliases {
+ serial2 = &uart_AO_B;
+ };
+
+ gpio-keys-polled {
+ compatible = "gpio-keys-polled";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ poll-interval = <100>;
+
+ button at 0 {
+ label = "power";
+ linux,code = <KEY_POWER>;
+ gpios = <&gpio_ao GPIOAO_2 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+ pwmleds {
+ compatible = "pwm-leds";
+
+ power {
+ label = "vim:red:power";
+ pwms = <&pwm_AO_ab 1 7812500 0>;
+ max-brightness = <255>;
+ linux,default-trigger = "default-on";
+ };
+ };
+
+ hdmi-connector {
+ compatible = "hdmi-connector";
+ type = "a";
+
+ port {
+ hdmi_connector_in: endpoint {
+ remote-endpoint = <&hdmi_tx_tmds_out>;
+ };
+ };
+ };
+};
+
+&hdmi_tx {
+ status = "okay";
+ pinctrl-0 = <&hdmi_hpd_pins>, <&hdmi_i2c_pins>;
+ pinctrl-names = "default";
+};
+
+&hdmi_tx_tmds_port {
+ hdmi_tx_tmds_out: endpoint {
+ remote-endpoint = <&hdmi_connector_in>;
+ };
+};
+
+&i2c_A {
+ status = "okay";
+ pinctrl-0 = <&i2c_a_pins>;
+ pinctrl-names = "default";
+};
+
+&i2c_B {
+ status = "okay";
+ pinctrl-0 = <&i2c_b_pins>;
+ pinctrl-names = "default";
+
+ rtc: rtc at 51 {
+ /* has to be enabled manually when a battery is connected: */
+ status = "disabled";
+ compatible = "haoyu,hym8563";
+ reg = <0x51>;
+ #clock-cells = <0>;
+ clock-frequency = <32768>;
+ clock-output-names = "xin32k";
+ };
+};
+
+&ir {
+ linux,rc-map-name = "rc-geekbox";
+};
+
+&pwm_AO_ab {
+ status = "okay";
+ pinctrl-0 = <&pwm_ao_a_3_pins>, <&pwm_ao_b_pins>;
+ pinctrl-names = "default";
+ clocks = <&xtal> , <&xtal>;
+ clock-names = "clkin0", "clkin1" ;
+};
+
+&pwm_ef {
+ pinctrl-0 = <&pwm_e_pins>, <&pwm_f_clk_pins>;
+};
+
+&sd_emmc_a {
+ brcmf: wifi at 1 {
+ reg = <1>;
+ compatible = "brcm,bcm4329-fmac";
+ };
+};
+
+/* This is brought out on the Linux_RX (18) and Linux_TX (19) pins: */
+&uart_AO {
+ status = "okay";
+};
+
+/* This is brought out on the UART_RX_AO_B (15) and UART_TX_AO_B (16) pins: */
+&uart_AO_B {
+ status = "okay";
+ pinctrl-0 = <&uart_ao_b_pins>;
+ pinctrl-names = "default";
+};
diff --git a/arch/arm/mach-meson/Kconfig b/arch/arm/mach-meson/Kconfig
index ca08dc3..0350787 100644
--- a/arch/arm/mach-meson/Kconfig
+++ b/arch/arm/mach-meson/Kconfig
@@ -45,6 +45,13 @@ config TARGET_LIBRETECH_CC
with 2 GiB of RAM, Ethernet, HDMI, 4 USB, micro-SD slot,
eMMC, IR receiver and a 40-pin GPIO header.

+config TARGET_KHADAS_VIM
+ bool "KHADAS-VIM"
+ help
+ Khadas VIM is a single board computer based on Meson GXL
+ with 2 GiB of RAM, Ethernet, HDMI, 4 USB, micro-SD slot,
+ eMMC, IR receiver and a 40-pin GPIO header.
+
endif

config SYS_SOC
@@ -59,4 +66,6 @@ source "board/amlogic/p212/Kconfig"

source "board/amlogic/libretech-cc/Kconfig"

+source "board/amlogic/khadas-vim/Kconfig"
+
endif
diff --git a/board/amlogic/khadas-vim/Kconfig b/board/amlogic/khadas-vim/Kconfig
new file mode 100644
index 0000000..0fa8db9
--- /dev/null
+++ b/board/amlogic/khadas-vim/Kconfig
@@ -0,0 +1,12 @@
+if TARGET_KHADAS_VIM
+
+config SYS_BOARD
+ default "khadas-vim"
+
+config SYS_VENDOR
+ default "amlogic"
+
+config SYS_CONFIG_NAME
+ default "khadas-vim"
+
+endif
diff --git a/board/amlogic/khadas-vim/MAINTAINERS b/board/amlogic/khadas-vim/MAINTAINERS
new file mode 100644
index 0000000..024220a
--- /dev/null
+++ b/board/amlogic/khadas-vim/MAINTAINERS
@@ -0,0 +1,6 @@
+KHADAS-VIM
+M: Neil Armstrong <narmstrong@baylibre.com>
+S: Maintained
+F: board/amlogic/khadas-vim/
+F: include/configs/khadas-vim.h
+F: configs/khadas-vim_defconfig
diff --git a/board/amlogic/khadas-vim/Makefile b/board/amlogic/khadas-vim/Makefile
new file mode 100644
index 0000000..eedc1bf
--- /dev/null
+++ b/board/amlogic/khadas-vim/Makefile
@@ -0,0 +1,8 @@
+#
+# (C) Copyright 2016 BayLibre, SAS
+# Author: Neil Armstrong <narmstrong@baylibre.com>
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+
+obj-y := khadas-vim.o
diff --git a/board/amlogic/khadas-vim/README b/board/amlogic/khadas-vim/README
new file mode 100644
index 0000000..0478eee
--- /dev/null
+++ b/board/amlogic/khadas-vim/README
@@ -0,0 +1,96 @@
+U-Boot for Khadas VIM
+=======================
+
+Khadas VIM is an Open Source DIY Box manufactured by Shenzhen Tomato
+Technology Co., Ltd with the following specifications:
+
+ - Amlogic S905x ARM Cortex-A53 quad-core SoC @ 2GHz
+ - ARM Mali 450 GPU
+ - 2GB DDR3 SDRAM
+ - 10/100 Ethernet
+ - HDMI 2.0 4K/60Hz display
+ - 40-pin GPIO header
+ - 2 x USB 2.0 Host, 1 x USB 2.0 Type-C OTG
+ - 8GB/16GBeMMC
+ - microSD
+ - SDIO Wifi Module, Bluetooth
+ - Two channels IR receiver
+
+Currently the u-boot port supports the following devices:
+ - serial
+ - eMMC, microSD
+ - Ethernet
+
+U-Boot compilation
+==================
+
+ > export ARCH=arm
+ > export CROSS_COMPILE=aarch64-none-elf-
+ > make khadas-vim_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:$PATH
+ > git clone https://github.com/khadas/u-boot -b Vim vim-u-boot
+ > cd vim-u-boot
+ > make kvim_defconfig
+ > make
+ > export FIPDIR=$PWD/fip
+
+Go back to mainline U-Boot source tree then :
+ > mkdir fip
+
+ > cp $FIPDIR/gxl/bl2.bin fip/
+ > cp $FIPDIR/gxl/acs.bin fip/
+ > cp $FIPDIR/gxl/bl21.bin fip/
+ > cp $FIPDIR/gxl/bl30.bin fip/
+ > cp $FIPDIR/gxl/bl301.bin fip/
+ > cp $FIPDIR/gxl/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/gxl/aml_encrypt_gxl --bl3enc --input fip/bl30_new.bin
+ > $FIPDIR/gxl/aml_encrypt_gxl --bl3enc --input fip/bl31.img
+ > $FIPDIR/gxl/aml_encrypt_gxl --bl3enc --input fip/bl33.bin
+ > $FIPDIR/gxl/aml_encrypt_gxl --bl2sig --input fip/bl2_new.bin --output fip/bl2.n.bin.sig
+ > $FIPDIR/gxl/aml_encrypt_gxl --bootmk \
+ --output fip/u-boot.bin \
+ --bl2 fip/bl2.n.bin.sig \
+ --bl30 fip/bl30_new.bin.enc \
+ --bl31 fip/bl31.img.enc \
+ --bl33 fip/bl33.bin.enc
+
+and then write the image to SD with:
+
+ > DEV=/dev/your_sd_device
+ > dd if=fip/u-boot.bin.sd.bin of=$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/khadas-vim/khadas-vim.c b/board/amlogic/khadas-vim/khadas-vim.c
new file mode 100644
index 0000000..db9c292
--- /dev/null
+++ b/board/amlogic/khadas-vim/khadas-vim.c
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2016 BayLibre, SAS
+ * Author: Neil Armstrong <narmstrong@baylibre.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <asm/io.h>
+#include <asm/arch/gxbb.h>
+#include <asm/arch/sm.h>
+#include <asm/arch/eth.h>
+
+#define EFUSE_SN_OFFSET 20
+#define EFUSE_SN_SIZE 16
+#define EFUSE_MAC_OFFSET 52
+#define EFUSE_MAC_SIZE 6
+
+int board_init(void)
+{
+ return 0;
+}
+
+int misc_init_r(void)
+{
+ u8 mac_addr[EFUSE_MAC_SIZE];
+ char serial[EFUSE_SN_SIZE];
+ ssize_t len;
+
+ meson_gx_eth_init(PHY_INTERFACE_MODE_RMII,
+ MESON_GXL_USE_INTERNAL_RMII_PHY);
+
+ if (!eth_env_get_enetaddr("ethaddr", mac_addr)) {
+ len = meson_sm_read_efuse(EFUSE_MAC_OFFSET,
+ mac_addr, EFUSE_MAC_SIZE);
+ if (len == EFUSE_MAC_SIZE && is_valid_ethaddr(mac_addr))
+ eth_env_set_enetaddr("ethaddr", mac_addr);
+ }
+
+ if (!env_get("serial#")) {
+ len = meson_sm_read_efuse(EFUSE_SN_OFFSET, serial,
+ EFUSE_SN_SIZE);
+ if (len == EFUSE_SN_SIZE)
+ env_set("serial#", serial);
+ }
+
+ return 0;
+}
diff --git a/configs/khadas-vim_defconfig b/configs/khadas-vim_defconfig
new file mode 100644
index 0000000..dcccc69
--- /dev/null
+++ b/configs/khadas-vim_defconfig
@@ -0,0 +1,35 @@
+CONFIG_ARM=y
+CONFIG_ARCH_MESON=y
+CONFIG_MESON_GXL=y
+CONFIG_TARGET_KHADAS_VIM=y
+CONFIG_IDENT_STRING=" khadas-vim"
+CONFIG_DEFAULT_DEVICE_TREE="meson-gxl-s905x-khadas-vim"
+CONFIG_DEBUG_UART=y
+CONFIG_ENV_IS_NOWHERE=y
+# CONFIG_DISPLAY_CPUINFO is not set
+# CONFIG_DISPLAY_BOARDINFO is not set
+# CONFIG_CMD_BDI is not set
+# CONFIG_CMD_IMI is not set
+# CONFIG_CMD_IMLS is not set
+# CONFIG_CMD_LOADS is not set
+CONFIG_CMD_MMC=y
+# CONFIG_CMD_FPGA is not set
+CONFIG_CMD_GPIO=y
+# CONFIG_CMD_SETEXPR is not set
+CONFIG_OF_CONTROL=y
+CONFIG_DM_GPIO=y
+CONFIG_DM_MMC=y
+CONFIG_MMC_MESON_GX=y
+CONFIG_DM_ETH=y
+CONFIG_ETH_DESIGNWARE=y
+CONFIG_PHY_MESON_GXL=y
+CONFIG_NET_RANDOM_ETHADDR=y
+CONFIG_PINCTRL=y
+CONFIG_PINCTRL_MESON_GXL=y
+CONFIG_DEBUG_UART_MESON=y
+CONFIG_DEBUG_UART_BASE=0xc81004c0
+CONFIG_DEBUG_UART_CLOCK=24000000
+CONFIG_DEBUG_UART_ANNOUNCE=y
+CONFIG_DEBUG_UART_SKIP_INIT=y
+CONFIG_MESON_SERIAL=y
+CONFIG_OF_LIBFDT_OVERLAY=y
diff --git a/include/configs/khadas-vim.h b/include/configs/khadas-vim.h
new file mode 100644
index 0000000..9d99bc5
--- /dev/null
+++ b/include/configs/khadas-vim.h
@@ -0,0 +1,21 @@
+/*
+ * Configuration for Khadas VIM
+ *
+ * Copyright (C) 2017 Baylibre, SAS
+ * Author: Neil Armstrong <narmstrong@baylibre.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#define CONFIG_MISC_INIT_R
+
+#define CONFIG_PHY_ADDR 8
+
+#define MESON_FDTFILE_SETTING "fdtfile=amlogic/meson-gxl-s905x-khadas-vim.dtb\0"
+
+#include <configs/meson-gxbb-common.h>
+
+#endif /* __CONFIG_H */
--
2.7.4