[PATCH u-boot 1/2] arm: Add LibreTech CC support based on Meson GXL family
Neil Armstrong
narmstrong at baylibre.com
Wed Nov 22 03:11:14 PST 2017
Hi Simon,
On 21/11/2017 05:08, Simon Glass wrote:
> Hi Neil,
>
> On 20 November 2017 at 08:04, Neil Armstrong <narmstrong at baylibre.com> wrote:
>> 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.
>>
>> Signed-off-by: Neil Armstrong <narmstrong at 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 | 58 +++++++++
>> configs/libretech-cc_defconfig | 35 ++++++
>> include/configs/libretech-cc.h | 24 ++++
>> 10 files changed, 421 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
>
> Reviewed-by: Simon Glass <sjg at chromium.org>
>
> Please see below.
>
>>
>> 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 at baylibre.com>
>> + * Author: Jerome Brunet <jbrunet at 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 at 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 at 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 at 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..9711e8a
>> --- /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
>
> U-Boot (always!)
Will fix in v2
>
>> +==================
>> +
>> + > 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-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 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 :
>
> U-Boot
Will fix in v2
>
>> + > 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
>
> It's great to have these instructions, but gosh this is complicated!
Indeed, and it depends on vendor publishing the original U-Boot source mixed with the ATF binary packaging...
>
>> diff --git a/board/amlogic/libretech-cc/libretech-cc.c b/board/amlogic/libretech-cc/libretech-cc.c
>> new file mode 100644
>> index 0000000..ece8096
>> --- /dev/null
>> +++ b/board/amlogic/libretech-cc/libretech-cc.c
>> @@ -0,0 +1,58 @@
>> +/*
>> + * Copyright (C) 2016 BayLibre, SAS
>> + * Author: Neil Armstrong <narmstrong at 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 <phy.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;
>> +
>> + /* Set RMII mode */
>> + out_le32(GXBB_ETH_REG_0, GXBB_ETH_REG_0_INVERT_RMII_CLK |
>> + GXBB_ETH_REG_0_CLK_EN);
>> +
>> + /* Use Internal PHY */
>> + out_le32(GXBB_ETH_REG_2, 0x10110181);
>> + out_le32(GXBB_ETH_REG_3, 0xe40908ff);
>> +
>> + /* 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..4e01b40
>> --- /dev/null
>> +++ b/include/configs/libretech-cc.h
>> @@ -0,0 +1,24 @@
>> +/*
>> + * Configuration for LibreTech CC
>> + *
>> + * Copyright (C) 2017 Baylibre, SAS
>> + * Author: Neil Armstrong <narmstrong at baylibre.com>
>> + *
>> + * SPDX-License-Identifier: GPL-2.0+
>> + */
>> +
>> +#ifndef __CONFIG_H
>> +#define __CONFIG_H
>> +
>> +#define CONFIG_MISC_INIT_R
>> +
>> +#define CONFIG_PHY_ADDR 8
>> +
>> +/* Serial setup */
>> +#define CONFIG_CONS_INDEX 0
>
> Do you need this with driver rmodel?
Indeed, looking in the serial-uclass, it will default to 0.
>
>> +
>> +#define MESON_FDTFILE_SETTING "fdtfile=amlogic/meson-gxl-s905x-libretech-cc.dtb\0"
>> +
>> +#include <configs/meson-gxbb-common.h>
>> +
>> +#endif /* __CONFIG_H */
>> --
>> 2.7.4
>>
>
> Regards,
> Simon
>
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