--- /dev/null
+From 7000a609473ffe14d32c656cdd0ff3ca0d3ecbd7 Mon Sep 17 00:00:00 2001
+From: Tianling Shen <cnsztl@gmail.com>
+Date: Tue, 11 Apr 2023 18:14:49 +0800
+Subject: [PATCH] rockchip: rk3328: Add support for FriendlyARM NanoPi R2C
+
+The NanoPi R2C is a minor variant of NanoPi R2S with the on-board NIC
+chip changed from rtl8211e to yt8521s, and otherwise identical to R2S.
+
+The device tree is taken from the kernel linux-next branch:
+https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=004589ff9df5b75672a78b6c3c4cba93202b14c9
+
+Signed-off-by: Tianling Shen <cnsztl@gmail.com>
+Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
+---
+ arch/arm/dts/Makefile | 1 +
+ arch/arm/dts/rk3328-nanopi-r2c-u-boot.dtsi | 3 +
+ arch/arm/dts/rk3328-nanopi-r2c.dts | 40 ++++++++
+ board/rockchip/evb_rk3328/MAINTAINERS | 6 ++
+ configs/nanopi-r2c-rk3328_defconfig | 112 +++++++++++++++++++++
+ 5 files changed, 162 insertions(+)
+ create mode 100644 arch/arm/dts/rk3328-nanopi-r2c-u-boot.dtsi
+ create mode 100644 arch/arm/dts/rk3328-nanopi-r2c.dts
+ create mode 100644 configs/nanopi-r2c-rk3328_defconfig
+
+--- a/arch/arm/dts/Makefile
++++ b/arch/arm/dts/Makefile
+@@ -108,6 +108,7 @@ dtb-$(CONFIG_ROCKCHIP_RK3308) += \
+
+ dtb-$(CONFIG_ROCKCHIP_RK3328) += \
+ rk3328-evb.dtb \
++ rk3328-nanopi-r2c.dtb \
+ rk3328-nanopi-r2s.dtb \
+ rk3328-roc-cc.dtb \
+ rk3328-rock64.dtb \
+--- /dev/null
++++ b/arch/arm/dts/rk3328-nanopi-r2c-u-boot.dtsi
+@@ -0,0 +1,3 @@
++// SPDX-License-Identifier: GPL-2.0-or-later
++
++#include "rk3328-nanopi-r2s-u-boot.dtsi"
+--- /dev/null
++++ b/arch/arm/dts/rk3328-nanopi-r2c.dts
+@@ -0,0 +1,40 @@
++// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
++/*
++ * Copyright (c) 2021 FriendlyElec Computer Tech. Co., Ltd.
++ * (http://www.friendlyarm.com)
++ *
++ * Copyright (c) 2021-2023 Tianling Shen <cnsztl@gmail.com>
++ */
++
++/dts-v1/;
++#include "rk3328-nanopi-r2s.dts"
++
++/ {
++ model = "FriendlyElec NanoPi R2C";
++ compatible = "friendlyarm,nanopi-r2c", "rockchip,rk3328";
++};
++
++&gmac2io {
++ phy-handle = <&yt8521s>;
++ tx_delay = <0x22>;
++ rx_delay = <0x12>;
++
++ mdio {
++ /delete-node/ ethernet-phy@1;
++
++ yt8521s: ethernet-phy@3 {
++ compatible = "ethernet-phy-ieee802.3-c22";
++ reg = <3>;
++
++ motorcomm,clk-out-frequency-hz = <125000000>;
++ motorcomm,keep-pll-enabled;
++ motorcomm,auto-sleep-disabled;
++
++ pinctrl-0 = <ð_phy_reset_pin>;
++ pinctrl-names = "default";
++ reset-assert-us = <10000>;
++ reset-deassert-us = <50000>;
++ reset-gpios = <&gpio1 RK_PC2 GPIO_ACTIVE_LOW>;
++ };
++ };
++};
+--- a/board/rockchip/evb_rk3328/MAINTAINERS
++++ b/board/rockchip/evb_rk3328/MAINTAINERS
+@@ -5,6 +5,12 @@ F: board/rockchip/evb_rk3328
+ F: include/configs/evb_rk3328.h
+ F: configs/evb-rk3328_defconfig
+
++NANOPI-R2C-RK3328
++M: Tianling Shen <cnsztl@gmail.com>
++S: Maintained
++F: configs/nanopi-r2c-rk3328_defconfig
++F: arch/arm/dts/rk3328-nanopi-r2c-u-boot.dtsi
++
+ NANOPI-R2S-RK3328
+ M: David Bauer <mail@david-bauer.net>
+ S: Maintained
+--- /dev/null
++++ b/configs/nanopi-r2c-rk3328_defconfig
+@@ -0,0 +1,98 @@
++CONFIG_ARM=y
++CONFIG_ARCH_ROCKCHIP=y
++CONFIG_SYS_TEXT_BASE=0x00200000
++CONFIG_SPL_GPIO_SUPPORT=y
++CONFIG_NR_DRAM_BANKS=1
++CONFIG_ENV_OFFSET=0x3F8000
++CONFIG_DEFAULT_DEVICE_TREE="rk3328-nanopi-r2c"
++CONFIG_ROCKCHIP_RK3328=y
++CONFIG_TPL_ROCKCHIP_COMMON_BOARD=y
++CONFIG_TPL_LIBCOMMON_SUPPORT=y
++CONFIG_TPL_LIBGENERIC_SUPPORT=y
++CONFIG_SPL_DRIVERS_MISC_SUPPORT=y
++CONFIG_SPL_STACK_R_ADDR=0x600000
++CONFIG_DEBUG_UART_BASE=0xFF130000
++CONFIG_DEBUG_UART_CLOCK=24000000
++CONFIG_DEBUG_UART=y
++CONFIG_TPL_SYS_MALLOC_F_LEN=0x800
++# CONFIG_ANDROID_BOOT_IMAGE is not set
++CONFIG_FIT=y
++CONFIG_FIT_VERBOSE=y
++CONFIG_SPL_LOAD_FIT=y
++CONFIG_DEFAULT_FDT_FILE="rockchip/rk3328-nanopi-r2c.dtb"
++# CONFIG_DISPLAY_CPUINFO is not set
++CONFIG_DISPLAY_BOARDINFO_LATE=y
++CONFIG_MISC_INIT_R=y
++# CONFIG_SPL_RAW_IMAGE_SUPPORT is not set
++CONFIG_TPL_SYS_MALLOC_SIMPLE=y
++CONFIG_SPL_STACK_R=y
++CONFIG_SPL_I2C_SUPPORT=y
++CONFIG_SPL_POWER_SUPPORT=y
++CONFIG_SPL_ATF=y
++CONFIG_SPL_ATF_NO_PLATFORM_PARAM=y
++CONFIG_CMD_BOOTZ=y
++CONFIG_CMD_GPT=y
++CONFIG_CMD_MMC=y
++CONFIG_CMD_USB=y
++# CONFIG_CMD_SETEXPR is not set
++CONFIG_CMD_TIME=y
++CONFIG_SPL_OF_CONTROL=y
++CONFIG_TPL_OF_CONTROL=y
++CONFIG_OF_SPL_REMOVE_PROPS="clock-names interrupt-parent assigned-clocks assigned-clock-rates assigned-clock-parents"
++CONFIG_TPL_OF_PLATDATA=y
++CONFIG_ENV_IS_IN_MMC=y
++CONFIG_SYS_RELOC_GD_ENV_ADDR=y
++CONFIG_NET_RANDOM_ETHADDR=y
++CONFIG_TPL_DM=y
++CONFIG_REGMAP=y
++CONFIG_SPL_REGMAP=y
++CONFIG_TPL_REGMAP=y
++CONFIG_SYSCON=y
++CONFIG_SPL_SYSCON=y
++CONFIG_TPL_SYSCON=y
++CONFIG_CLK=y
++CONFIG_SPL_CLK=y
++CONFIG_FASTBOOT_BUF_ADDR=0x800800
++CONFIG_FASTBOOT_CMD_OEM_FORMAT=y
++CONFIG_ROCKCHIP_GPIO=y
++CONFIG_SYS_I2C_ROCKCHIP=y
++CONFIG_MMC_DW=y
++CONFIG_MMC_DW_ROCKCHIP=y
++CONFIG_SF_DEFAULT_SPEED=20000000
++CONFIG_DM_ETH=y
++CONFIG_ETH_DESIGNWARE=y
++CONFIG_GMAC_ROCKCHIP=y
++CONFIG_PINCTRL=y
++CONFIG_SPL_PINCTRL=y
++CONFIG_DM_PMIC=y
++CONFIG_PMIC_RK8XX=y
++CONFIG_SPL_DM_REGULATOR=y
++CONFIG_REGULATOR_PWM=y
++CONFIG_DM_REGULATOR_FIXED=y
++CONFIG_SPL_DM_REGULATOR_FIXED=y
++CONFIG_REGULATOR_RK8XX=y
++CONFIG_PWM_ROCKCHIP=y
++CONFIG_RAM=y
++CONFIG_SPL_RAM=y
++CONFIG_TPL_RAM=y
++CONFIG_DM_RESET=y
++CONFIG_BAUDRATE=1500000
++CONFIG_DEBUG_UART_SHIFT=2
++CONFIG_SYSINFO=y
++CONFIG_SYSRESET=y
++# CONFIG_TPL_SYSRESET is not set
++CONFIG_USB=y
++CONFIG_USB_XHCI_HCD=y
++CONFIG_USB_XHCI_DWC3=y
++CONFIG_USB_EHCI_HCD=y
++CONFIG_USB_EHCI_GENERIC=y
++CONFIG_USB_OHCI_HCD=y
++CONFIG_USB_OHCI_GENERIC=y
++CONFIG_USB_DWC2=y
++CONFIG_USB_DWC3=y
++# CONFIG_USB_DWC3_GADGET is not set
++CONFIG_USB_GADGET=y
++CONFIG_USB_GADGET_DWC2_OTG=y
++CONFIG_SPL_TINY_MEMSET=y
++CONFIG_TPL_TINY_MEMSET=y
++CONFIG_ERRNO_STR=y
--- /dev/null
+/*
+ * DO NOT MODIFY
+ *
+ * Declares the U_BOOT_DRIVER() records and platform data.
+ * This was generated by dtoc from a .dtb (device tree binary) file.
+ */
+
+/* Allow use of U_BOOT_DRVINFO() in this file */
+#define DT_PLAT_C
+
+#include <common.h>
+#include <dm.h>
+#include <dt-structs.h>
+
+/*
+ * driver_info declarations, ordered by 'struct driver_info' linker_list idx:
+ *
+ * idx driver_info driver
+ * --- -------------------- --------------------
+ * 0: clock_controller_at_ff440000 rockchip_rk3328_cru
+ * 1: dmc rockchip_rk3328_dmc
+ * 2: mmc_at_ff500000 rockchip_rk3288_dw_mshc
+ * 3: serial_at_ff130000 ns16550_serial
+ * 4: syscon_at_ff100000 rockchip_rk3328_grf
+ * --- -------------------- --------------------
+ */
+
+/*
+ * Node /clock-controller@ff440000 index 0
+ * driver rockchip_rk3328_cru parent None
+ */
+static struct dtd_rockchip_rk3328_cru dtv_clock_controller_at_ff440000 = {
+ .reg = {0xff440000, 0x1000},
+ .rockchip_grf = 0x3a,
+};
+U_BOOT_DRVINFO(clock_controller_at_ff440000) = {
+ .name = "rockchip_rk3328_cru",
+ .plat = &dtv_clock_controller_at_ff440000,
+ .plat_size = sizeof(dtv_clock_controller_at_ff440000),
+ .parent_idx = -1,
+};
+
+/*
+ * Node /dmc index 1
+ * driver rockchip_rk3328_dmc parent None
+ */
+static struct dtd_rockchip_rk3328_dmc dtv_dmc = {
+ .reg = {0xff400000, 0x1000, 0xff780000, 0x3000, 0xff100000, 0x1000, 0xff440000, 0x1000,
+ 0xff720000, 0x1000, 0xff798000, 0x1000},
+ .rockchip_sdram_params = {0x1, 0xa, 0x2, 0x1, 0x0, 0x0, 0x11, 0x0,
+ 0x11, 0x0, 0x0, 0x94291288, 0x0, 0x27, 0x462, 0x15,
+ 0x242, 0xff, 0x14d, 0x0, 0x1, 0x0, 0x0, 0x0,
+ 0x43049010, 0x64, 0x28003b, 0xd0, 0x20053, 0xd4, 0x220000, 0xd8,
+ 0x100, 0xdc, 0x40000, 0xe0, 0x0, 0xe4, 0x110000, 0xe8,
+ 0x420, 0xec, 0x400, 0xf4, 0xf011f, 0x100, 0x9060b06, 0x104,
+ 0x20209, 0x108, 0x505040a, 0x10c, 0x40400c, 0x110, 0x5030206, 0x114,
+ 0x3030202, 0x120, 0x3030b03, 0x124, 0x20208, 0x180, 0x1000040, 0x184,
+ 0x0, 0x190, 0x7030003, 0x198, 0x5001100, 0x1a0, 0xc0400003, 0x240,
+ 0x6000604, 0x244, 0x201, 0x250, 0xf00, 0x490, 0x1, 0xffffffff,
+ 0xffffffff, 0xffffffff, 0xffffffff, 0x4, 0xc, 0x28, 0xa, 0x2c,
+ 0x0, 0x30, 0x9, 0xffffffff, 0xffffffff, 0x77, 0x88, 0x79,
+ 0x79, 0x87, 0x97, 0x87, 0x78, 0x77, 0x78, 0x87,
+ 0x88, 0x87, 0x87, 0x77, 0x78, 0x78, 0x78, 0x78,
+ 0x78, 0x78, 0x78, 0x78, 0x78, 0x69, 0x9, 0x77,
+ 0x78, 0x77, 0x78, 0x77, 0x78, 0x77, 0x78, 0x77,
+ 0x79, 0x9, 0x78, 0x78, 0x78, 0x78, 0x78, 0x78,
+ 0x78, 0x78, 0x78, 0x69, 0x9, 0x77, 0x78, 0x77,
+ 0x77, 0x77, 0x77, 0x77, 0x77, 0x77, 0x79, 0x9,
+ 0x78, 0x78, 0x78, 0x78, 0x78, 0x78, 0x78, 0x78,
+ 0x78, 0x69, 0x9, 0x77, 0x78, 0x77, 0x78, 0x77,
+ 0x78, 0x77, 0x78, 0x77, 0x79, 0x9, 0x78, 0x78,
+ 0x78, 0x78, 0x78, 0x78, 0x78, 0x78, 0x78, 0x69,
+ 0x9, 0x77, 0x78, 0x77, 0x77, 0x77, 0x77, 0x77,
+ 0x77, 0x77, 0x79, 0x9},
+};
+U_BOOT_DRVINFO(dmc) = {
+ .name = "rockchip_rk3328_dmc",
+ .plat = &dtv_dmc,
+ .plat_size = sizeof(dtv_dmc),
+ .parent_idx = -1,
+};
+
+/*
+ * Node /mmc@ff500000 index 2
+ * driver rockchip_rk3288_dw_mshc parent None
+ */
+static struct dtd_rockchip_rk3288_dw_mshc dtv_mmc_at_ff500000 = {
+ .bus_width = 0x4,
+ .cap_sd_highspeed = true,
+ .clocks = {
+ {0, {317}},
+ {0, {33}},
+ {0, {74}},
+ {0, {78}},},
+ .disable_wp = true,
+ .fifo_depth = 0x100,
+ .interrupts = {0x0, 0xc, 0x4},
+ .max_frequency = 0x8f0d180,
+ .pinctrl_0 = {0x47, 0x48, 0x49, 0x4a},
+ .pinctrl_names = "default",
+ .reg = {0xff500000, 0x4000},
+ .sd_uhs_sdr104 = true,
+ .sd_uhs_sdr12 = true,
+ .sd_uhs_sdr25 = true,
+ .sd_uhs_sdr50 = true,
+ .u_boot_spl_fifo_mode = true,
+ .vmmc_supply = 0x4b,
+ .vqmmc_supply = 0x1e,
+};
+U_BOOT_DRVINFO(mmc_at_ff500000) = {
+ .name = "rockchip_rk3288_dw_mshc",
+ .plat = &dtv_mmc_at_ff500000,
+ .plat_size = sizeof(dtv_mmc_at_ff500000),
+ .parent_idx = -1,
+};
+
+/*
+ * Node /serial@ff130000 index 3
+ * driver ns16550_serial parent None
+ */
+static struct dtd_ns16550_serial dtv_serial_at_ff130000 = {
+ .clock_frequency = 0x16e3600,
+ .clocks = {
+ {0, {40}},
+ {0, {212}},},
+ .dma_names = {"tx", "rx"},
+ .dmas = {0x10, 0x6, 0x10, 0x7},
+ .interrupts = {0x0, 0x39, 0x4},
+ .pinctrl_0 = 0x26,
+ .pinctrl_names = "default",
+ .reg = {0xff130000, 0x100},
+ .reg_io_width = 0x4,
+ .reg_shift = 0x2,
+};
+U_BOOT_DRVINFO(serial_at_ff130000) = {
+ .name = "ns16550_serial",
+ .plat = &dtv_serial_at_ff130000,
+ .plat_size = sizeof(dtv_serial_at_ff130000),
+ .parent_idx = -1,
+};
+
+/*
+ * Node /syscon@ff100000 index 4
+ * driver rockchip_rk3328_grf parent None
+ */
+static struct dtd_rockchip_rk3328_grf dtv_syscon_at_ff100000 = {
+ .reg = {0xff100000, 0x1000},
+};
+U_BOOT_DRVINFO(syscon_at_ff100000) = {
+ .name = "rockchip_rk3328_grf",
+ .plat = &dtv_syscon_at_ff100000,
+ .plat_size = sizeof(dtv_syscon_at_ff100000),
+ .parent_idx = -1,
+};
+