This adds platform code for the Libre Computer CC "Le Potato" 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-libretech-cc.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-libretech-cc.dts | 171 ++++++++++++++++++++++++++ arch/arm/mach-meson/Kconfig | 9 ++ board/amlogic/libretech-cc/Kconfig | 12 ++ board/amlogic/libretech-cc/MAINTAINERS | 6 + board/amlogic/libretech-cc/Makefile | 8 ++ board/amlogic/libretech-cc/README | 96 +++++++++++++++ board/amlogic/libretech-cc/libretech-cc.c | 53 ++++++++ configs/libretech-cc_defconfig | 35 ++++++ include/configs/libretech-cc.h | 21 ++++ 10 files changed, 413 insertions(+), 1 deletion(-) create mode 100644 arch/arm/dts/meson-gxl-s905x-libretech-cc.dts create mode 100644 board/amlogic/libretech-cc/Kconfig create mode 100644 board/amlogic/libretech-cc/MAINTAINERS create mode 100644 board/amlogic/libretech-cc/Makefile create mode 100644 board/amlogic/libretech-cc/README create mode 100644 board/amlogic/libretech-cc/libretech-cc.c create mode 100644 configs/libretech-cc_defconfig create mode 100644 include/configs/libretech-cc.h
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile index cd540e9..1845552 100644 --- a/arch/arm/dts/Makefile +++ b/arch/arm/dts/Makefile @@ -55,7 +55,8 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += \ rv1108-evb.dtb dtb-$(CONFIG_ARCH_MESON) += \ meson-gxbb-odroidc2.dtb \ - meson-gxl-s905x-p212.dtb + meson-gxl-s905x-p212.dtb \ + meson-gxl-s905x-libretech-cc.dtb dtb-$(CONFIG_TEGRA) += tegra20-harmony.dtb \ tegra20-medcom-wide.dtb \ tegra20-paz00.dtb \ diff --git a/arch/arm/dts/meson-gxl-s905x-libretech-cc.dts b/arch/arm/dts/meson-gxl-s905x-libretech-cc.dts new file mode 100644 index 0000000..266fbcf --- /dev/null +++ b/arch/arm/dts/meson-gxl-s905x-libretech-cc.dts @@ -0,0 +1,171 @@ +/* + * Copyright (c) 2017 BayLibre, SAS. + * Author: Neil Armstrong narmstrong@baylibre.com + * Author: Jerome Brunet jbrunet@baylibre.com + * + * SPDX-License-Identifier: (GPL-2.0+ OR MIT) + */ + +/dts-v1/; + +#include <dt-bindings/input/input.h> + +#include "meson-gxl-s905x.dtsi" + +/ { + compatible = "libretech,cc", "amlogic,s905x", "amlogic,meson-gxl"; + model = "Libre Technology CC"; + + aliases { + serial0 = &uart_AO; + }; + + chosen { + stdout-path = "serial0:115200n8"; + }; + + cvbs-connector { + compatible = "composite-video-connector"; + + port { + cvbs_connector_in: endpoint { + remote-endpoint = <&cvbs_vdac_out>; + }; + }; + }; + + emmc_pwrseq: emmc-pwrseq { + compatible = "mmc-pwrseq-emmc"; + reset-gpios = <&gpio BOOT_9 GPIO_ACTIVE_LOW>; + }; + + hdmi-connector { + compatible = "hdmi-connector"; + type = "a"; + + port { + hdmi_connector_in: endpoint { + remote-endpoint = <&hdmi_tx_tmds_out>; + }; + }; + }; + + leds { + compatible = "gpio-leds"; + + system { + label = "librecomputer:system-status"; + gpios = <&gpio GPIODV_24 GPIO_ACTIVE_HIGH>; + default-state = "on"; + panic-indicator; + }; + + blue { + label = "librecomputer:blue"; + gpios = <&gpio_ao GPIOAO_2 GPIO_ACTIVE_HIGH>; + linux,default-trigger = "heartbeat"; + }; + }; + + memory@0 { + device_type = "memory"; + reg = <0x0 0x0 0x0 0x80000000>; + }; + + vcc_3v3: regulator-vcc_3v3 { + compatible = "regulator-fixed"; + regulator-name = "VCC_3V3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + }; + + vcc_card: regulator-vcc-card { + compatible = "regulator-gpio"; + + regulator-name = "VCC_CARD"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <3300000>; + + gpios = <&gpio_ao GPIOAO_3 GPIO_ACTIVE_HIGH>; + gpios-states = <0>; + + states = <3300000 0>, + <1800000 1>; + }; + + vddio_boot: regulator-vddio_boot { + compatible = "regulator-fixed"; + regulator-name = "VDDIO_BOOT"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + }; +}; + +&cvbs_vdac_port { + cvbs_vdac_out: endpoint { + remote-endpoint = <&cvbs_connector_in>; + }; +}; + +ðmac { + status = "okay"; +}; + +&ir { + status = "okay"; + pinctrl-0 = <&remote_input_ao_pins>; + pinctrl-names = "default"; +}; + +&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>; + }; +}; + +/* SD card */ +&sd_emmc_b { + status = "okay"; + pinctrl-0 = <&sdcard_pins>; + pinctrl-names = "default"; + + bus-width = <4>; + cap-sd-highspeed; + max-frequency = <100000000>; + disable-wp; + + cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>; + cd-inverted; + + vmmc-supply = <&vcc_3v3>; + vqmmc-supply = <&vcc_card>; +}; + +/* eMMC */ +&sd_emmc_c { + status = "okay"; + pinctrl-0 = <&emmc_pins>; + pinctrl-names = "default"; + + bus-width = <8>; + cap-mmc-highspeed; + max-frequency = <50000000>; + non-removable; + disable-wp; + + mmc-pwrseq = <&emmc_pwrseq>; + vmmc-supply = <&vcc_3v3>; + vqmmc-supply = <&vddio_boot>; +}; + +&uart_AO { + status = "okay"; + pinctrl-0 = <&uart_ao_a_pins>; + pinctrl-names = "default"; +}; diff --git a/arch/arm/mach-meson/Kconfig b/arch/arm/mach-meson/Kconfig index d4bd230..ca08dc3 100644 --- a/arch/arm/mach-meson/Kconfig +++ b/arch/arm/mach-meson/Kconfig @@ -38,6 +38,13 @@ config TARGET_P212 with 2 GiB of RAM, Ethernet, HDMI, 2 USB, micro-SD slot, eMMC, IR receiver, CVBS+Audio jack and a SDIO WiFi module.
+config TARGET_LIBRETECH_CC + bool "LIBRETECH-CC" + help + LibreTech CC 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 @@ -50,4 +57,6 @@ source "board/amlogic/odroid-c2/Kconfig"
source "board/amlogic/p212/Kconfig"
+source "board/amlogic/libretech-cc/Kconfig" + endif diff --git a/board/amlogic/libretech-cc/Kconfig b/board/amlogic/libretech-cc/Kconfig new file mode 100644 index 0000000..7a6f916 --- /dev/null +++ b/board/amlogic/libretech-cc/Kconfig @@ -0,0 +1,12 @@ +if TARGET_LIBRETECH_CC + +config SYS_BOARD + default "libretech-cc" + +config SYS_VENDOR + default "amlogic" + +config SYS_CONFIG_NAME + default "libretech-cc" + +endif diff --git a/board/amlogic/libretech-cc/MAINTAINERS b/board/amlogic/libretech-cc/MAINTAINERS new file mode 100644 index 0000000..398ce57 --- /dev/null +++ b/board/amlogic/libretech-cc/MAINTAINERS @@ -0,0 +1,6 @@ +LIBRETECH-CC +M: Neil Armstrong narmstrong@baylibre.com +S: Maintained +F: board/amlogic/libretech-cc/ +F: include/configs/libretech-cc.h +F: configs/libretech-cc_defconfig diff --git a/board/amlogic/libretech-cc/Makefile b/board/amlogic/libretech-cc/Makefile new file mode 100644 index 0000000..d0e3bbb --- /dev/null +++ b/board/amlogic/libretech-cc/Makefile @@ -0,0 +1,8 @@ +# +# (C) Copyright 2016 BayLibre, SAS +# Author: Neil Armstrong narmstrong@baylibre.com +# +# SPDX-License-Identifier: GPL-2.0+ +# + +obj-y := libretech-cc.o diff --git a/board/amlogic/libretech-cc/README b/board/amlogic/libretech-cc/README new file mode 100644 index 0000000..c06a392 --- /dev/null +++ b/board/amlogic/libretech-cc/README @@ -0,0 +1,96 @@ +U-Boot for LibreTech CC +======================= + +LibreTech CC is a single board computer manufactured by Libre Technology +with the following specifications: + + - Amlogic S905X ARM Cortex-A53 quad-core SoC @ 2GHz + - ARM Mali 450 GPU + - 2GB DDR3 SDRAM + - Gigabit Ethernet + - HDMI 2.0 4K/60Hz display + - 40-pin GPIO header + - 4 x USB 2.0 Host, 1 x USB OTG + - eMMC, microSD + - Infrared receiver + +Schematics are available on the manufacturer website. + +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 libretech-cc_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-... + > wget https://releases.linaro.org/archive/13.11/components/toolchain/binaries/gcc-... + > 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 libretech-cc amlogic-u-boot + > cd amlogic-u-boot + > make libretech_cc_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/libretech-cc/libretech-cc.c b/board/amlogic/libretech-cc/libretech-cc.c new file mode 100644 index 0000000..26c0e78 --- /dev/null +++ b/board/amlogic/libretech-cc/libretech-cc.c @@ -0,0 +1,53 @@ +/* + * 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); + + /* Enable power and clock gate */ + setbits_le32(GXBB_GCLK_MPEG_1, GXBB_GCLK_MPEG_1_ETH); + clrbits_le32(GXBB_MEM_PD_REG_0, GXBB_MEM_PD_REG_0_ETH_MASK); + + 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/libretech-cc_defconfig b/configs/libretech-cc_defconfig new file mode 100644 index 0000000..a63e940 --- /dev/null +++ b/configs/libretech-cc_defconfig @@ -0,0 +1,35 @@ +CONFIG_ARM=y +CONFIG_ARCH_MESON=y +CONFIG_MESON_GXL=y +CONFIG_TARGET_LIBRETECH_CC=y +CONFIG_IDENT_STRING=" libretech-cc" +CONFIG_DEFAULT_DEVICE_TREE="meson-gxl-s905x-libretech-cc" +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/libretech-cc.h b/include/configs/libretech-cc.h new file mode 100644 index 0000000..ffaca26 --- /dev/null +++ b/include/configs/libretech-cc.h @@ -0,0 +1,21 @@ +/* + * Configuration for LibreTech CC + * + * 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-libretech-cc.dtb\0" + +#include <configs/meson-gxbb-common.h> + +#endif /* __CONFIG_H */