On 2025/4/8 06:47, Jonas Karlman wrote:
Add a minimal generic RK3528 board that only have eMMC and SD-card
enabled. This defconfig can be used to boot from eMMC or SD-card on most
RK3528 boards that follow reference board design.
Signed-off-by: Jonas Karlman <jo...@kwiboo.se>
Reviewed-by: Kever Yang <kever.y...@rock-chips.com>
Thanks,
- Kever
---
Changes in v2:
- Move sdhci node to main .dts-file
- Enable meminfo cmd
Tested on:
- FriendlyElec NanoPi Zero2
- Radxa ROCK 2A
- Radxa ROCK 2F
---
arch/arm/dts/rk3528-generic-u-boot.dtsi | 12 +++++++
arch/arm/dts/rk3528-generic.dts | 31 ++++++++++++++++++
arch/arm/mach-rockchip/rk3528/MAINTAINERS | 5 +++
configs/generic-rk3528_defconfig | 40 +++++++++++++++++++++++
doc/board/rockchip/rockchip.rst | 12 +++++++
5 files changed, 100 insertions(+)
create mode 100644 arch/arm/dts/rk3528-generic-u-boot.dtsi
create mode 100644 arch/arm/dts/rk3528-generic.dts
create mode 100644 arch/arm/mach-rockchip/rk3528/MAINTAINERS
create mode 100644 configs/generic-rk3528_defconfig
diff --git a/arch/arm/dts/rk3528-generic-u-boot.dtsi
b/arch/arm/dts/rk3528-generic-u-boot.dtsi
new file mode 100644
index 000000000000..cc830b514567
--- /dev/null
+++ b/arch/arm/dts/rk3528-generic-u-boot.dtsi
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+#include "rk3528-u-boot.dtsi"
+
+&sdmmc {
+ bus-width = <4>;
+ cap-sd-highspeed;
+ disable-wp;
+ no-mmc;
+ no-sdio;
+ status = "okay";
+};
diff --git a/arch/arm/dts/rk3528-generic.dts b/arch/arm/dts/rk3528-generic.dts
new file mode 100644
index 000000000000..792d3e04a4cb
--- /dev/null
+++ b/arch/arm/dts/rk3528-generic.dts
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Minimal generic DT for RK3528 with eMMC enabled
+ */
+
+/dts-v1/;
+#include "rk3528.dtsi"
+
+/ {
+ model = "Generic RK3528";
+ compatible = "rockchip,rk3528";
+
+ chosen {
+ stdout-path = "serial0:1500000n8";
+ };
+};
+
+&sdhci {
+ bus-width = <8>;
+ cap-mmc-highspeed;
+ no-sd;
+ no-sdio;
+ non-removable;
+ status = "okay";
+};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0m0_xfer>;
+ status = "okay";
+};
diff --git a/arch/arm/mach-rockchip/rk3528/MAINTAINERS
b/arch/arm/mach-rockchip/rk3528/MAINTAINERS
new file mode 100644
index 000000000000..cfdc92d770c1
--- /dev/null
+++ b/arch/arm/mach-rockchip/rk3528/MAINTAINERS
@@ -0,0 +1,5 @@
+GENERIC-RK3528
+M: Jonas Karlman <jo...@kwiboo.se>
+S: Maintained
+F: arch/arm/dts/rk3528-generic*
+F: configs/generic-rk3528_defconfig
diff --git a/configs/generic-rk3528_defconfig b/configs/generic-rk3528_defconfig
new file mode 100644
index 000000000000..e19c7bc4801d
--- /dev/null
+++ b/configs/generic-rk3528_defconfig
@@ -0,0 +1,40 @@
+CONFIG_ARM=y
+CONFIG_SKIP_LOWLEVEL_INIT=y
+CONFIG_COUNTER_FREQUENCY=24000000
+CONFIG_ARCH_ROCKCHIP=y
+CONFIG_DEFAULT_DEVICE_TREE="rk3528-generic"
+CONFIG_ROCKCHIP_RK3528=y
+CONFIG_SYS_LOAD_ADDR=0xc00800
+CONFIG_DEBUG_UART_BASE=0xFF9F0000
+CONFIG_DEBUG_UART_CLOCK=24000000
+CONFIG_DEBUG_UART=y
+# CONFIG_BOOTMETH_VBE is not set
+CONFIG_DEFAULT_FDT_FILE="rockchip/rk3528-generic.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_GPIO=y
+CONFIG_CMD_GPT=y
+CONFIG_CMD_MISC=y
+CONFIG_CMD_MMC=y
+# CONFIG_CMD_SETEXPR is not set
+CONFIG_CMD_RNG=y
+# CONFIG_SPL_DOS_PARTITION is not set
+# CONFIG_OF_UPSTREAM is not set
+CONFIG_OF_SPL_REMOVE_PROPS="clock-names interrupt-parent assigned-clocks
assigned-clock-rates assigned-clock-parents"
+CONFIG_NO_NET=y
+# CONFIG_ADC is not set
+CONFIG_ROCKCHIP_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_BAUDRATE=1500000
+CONFIG_DEBUG_UART_SHIFT=2
+CONFIG_SYS_NS16550_MEM32=y
+CONFIG_ERRNO_STR=y
diff --git a/doc/board/rockchip/rockchip.rst b/doc/board/rockchip/rockchip.rst
index 5a029afae305..c636d33b47c1 100644
--- a/doc/board/rockchip/rockchip.rst
+++ b/doc/board/rockchip/rockchip.rst
@@ -99,6 +99,9 @@ List of mainline supported Rockchip boards:
- Rockchip Evb-RK3399 (evb_rk3399)
- Theobroma Systems RK3399-Q7 SoM - Puma (puma_rk3399)
+* rk3528
+ - Generic RK3528 (generic-rk3528)
+
* rk3566
- Anbernic RGxx3 (anbernic-rgxx3-rk3566)
- FriendlyElec NanoPi R3S (nanopi-r3s-rk3566)
@@ -260,6 +263,15 @@ To build rk3399 boards:
make evb-rk3399_defconfig
make CROSS_COMPILE=aarch64-linux-gnu-
+To build rk3528 boards:
+
+.. code-block:: bash
+
+ export BL31=../rkbin/bin/rk35/rk3528_bl31_v1.18.elf
+ export ROCKCHIP_TPL=../rkbin/bin/rk35/rk3528_ddr_1056MHz_v1.10.bin
+ make generic-rk3528_defconfig
+ make CROSS_COMPILE=aarch64-linux-gnu-
+
To build rk3568 boards:
.. code-block:: bash
