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board: rockchip: Add Radxa E20C

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The Radxa E20C is an ultra-compact network computer with a RK3528A SoC
that offers a wide range of networking capabilities.

Features tested on a Radxa E20C v1.104:
- SD-card boot
- eMMC boot

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
This commit is contained in:
Jonas Karlman 2025-04-07 22:47:03 +00:00 committed by Kever Yang
parent b112a44531
commit ccbddf6453
4 changed files with 75 additions and 0 deletions
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12
arch/arm/dts/rk3528-radxa-e20c-u-boot.dtsi Normal file
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@ -0,0 +1,12 @@
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
#include "rk3528-u-boot.dtsi"
&sdmmc {
bus-width = <4>;
cap-mmc-highspeed;
cap-sd-highspeed;
disable-wp;
vmmc-supply = <&vcc_3v3>;
status = "okay";
};

6
arch/arm/mach-rockchip/rk3528/MAINTAINERS
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@ -3,3 +3,9 @@ M: Jonas Karlman <jonas@kwiboo.se>
S: Maintained
F: arch/arm/dts/rk3528-generic*
F: configs/generic-rk3528_defconfig
RADXA-E20C
M: Jonas Karlman <jonas@kwiboo.se>
S: Maintained
F: arch/arm/dts/rk3528-radxa-e20c*
F: configs/radxa-e20c-rk3528_defconfig

56
configs/radxa-e20c-rk3528_defconfig Normal file
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@ -0,0 +1,56 @@
CONFIG_ARM=y
CONFIG_SKIP_LOWLEVEL_INIT=y
CONFIG_COUNTER_FREQUENCY=24000000
CONFIG_ARCH_ROCKCHIP=y
CONFIG_DEFAULT_DEVICE_TREE="rockchip/rk3528-radxa-e20c"
CONFIG_ROCKCHIP_RK3528=y
CONFIG_SYS_LOAD_ADDR=0xc00800
CONFIG_DEBUG_UART_BASE=0xFF9F0000
CONFIG_DEBUG_UART_CLOCK=24000000
CONFIG_DEBUG_UART=y
CONFIG_DEFAULT_FDT_FILE="rockchip/rk3528-radxa-e20c.dtb"
# CONFIG_DISPLAY_CPUINFO is not set
CONFIG_SPL_MAX_SIZE=0x40000
CONFIG_SPL_PAD_TO=0x7f8000
# CONFIG_SPL_RAW_IMAGE_SUPPORT is not set
CONFIG_CMD_MEMINFO=y
CONFIG_CMD_MEMINFO_MAP=y
CONFIG_CMD_ADC=y
CONFIG_CMD_GPIO=y
CONFIG_CMD_GPT=y
CONFIG_CMD_MISC=y
CONFIG_CMD_MMC=y
CONFIG_CMD_USB=y
# CONFIG_CMD_SETEXPR is not set
CONFIG_CMD_RNG=y
CONFIG_CMD_REGULATOR=y
# CONFIG_SPL_DOS_PARTITION is not set
CONFIG_OF_SPL_REMOVE_PROPS="clock-names interrupt-parent assigned-clocks assigned-clock-rates assigned-clock-parents"
CONFIG_BUTTON=y
CONFIG_BUTTON_ADC=y
CONFIG_BUTTON_GPIO=y
CONFIG_ROCKCHIP_GPIO=y
CONFIG_LED=y
CONFIG_LED_GPIO=y
CONFIG_SUPPORT_EMMC_RPMB=y
CONFIG_MMC_DW=y
CONFIG_MMC_DW_ROCKCHIP=y
CONFIG_MMC_SDHCI=y
CONFIG_MMC_SDHCI_SDMA=y
CONFIG_MMC_SDHCI_ROCKCHIP=y
CONFIG_PHY_MOTORCOMM=y
CONFIG_PHY_REALTEK=y
CONFIG_DM_MDIO=y
CONFIG_DWC_ETH_QOS=y
CONFIG_DWC_ETH_QOS_ROCKCHIP=y
CONFIG_PHY_ROCKCHIP_INNO_USB2=y
CONFIG_REGULATOR_PWM=y
CONFIG_DM_REGULATOR_GPIO=y
CONFIG_PWM_ROCKCHIP=y
CONFIG_BAUDRATE=1500000
CONFIG_DEBUG_UART_SHIFT=2
CONFIG_SYS_NS16550_MEM32=y
CONFIG_USB=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_GENERIC=y
CONFIG_ERRNO_STR=y

1
doc/board/rockchip/rockchip.rst
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@ -99,6 +99,7 @@ List of mainline supported Rockchip boards:
* rk3528
- Generic RK3528 (generic-rk3528)
- Radxa E20C (radxa-e20c-rk3528)
* rk3566
- Anbernic RGxx3 (anbernic-rgxx3-rk3566)