{
  "product_name": "hongzos_rk3568",
  "device_company": "rockchip",
  "device_build_path": "device/board/archermind/rk3568",
  "target_cpu": "arm",
  "type": "standard",
  "version": "3.0",
"board":"rk3568",

gitclonehttps://github.com/rockchip-linux/u-boot.git

RKBIN_TOOLS=rkbin/tools

#include "boot_rkimg.h"
#define BLK_CNT(_num_bytes, _block_size)        
                ((_num_bytes + _block_size - 1) / _block_size)


static char* load_ramdisk_from_partition(void *buffer)
{
        struct blk_desc *desc = rockchip_get_bootdev();
        disk_partition_t part_ramdisk_boot;
        static char initrd_str[28];
        long blk_cnt = 0, blks_read = 0;
        long blk_start = 0;
        if (part_get_info_by_name(desc, "ramdisk", &part_ramdisk_boot) < 0) {
                printf("No ramdisk partition
");
                return NULL;
        }
        blk_cnt = part_ramdisk_boot.size;
        blk_start = part_ramdisk_boot.start;
        printf("Load from partition ' ramdisk ' to address 0x%p, count: %ld total block(s) by ludao
", buffer, blk_cnt);
        blks_read = blk_dread(desc, blk_start, blk_cnt, buffer);
        if (blks_read != blk_cnt) {
             return NULL;
        }
        printf("Read from partition ' ramdisk ' done, from 0x%lx total block(s) 0x%lx
", blk_start, blk_cnt);
        sprintf(initrd_str, "0x%p:0x%lx", buffer, blk_cnt*(part_ramdisk_boot.blksz));
        printf("Openharmony ramdisk_addr_r = %s
", initrd_str);


        return initrd_str;
}
static int label_boot(cmd_tbl_t *cmdtp, struct pxe_label *label)
        if (label->initrd) {
                if (get_relfile_envaddr(cmdtp, label->initrd, "ramdisk_addr_r") < 0) {
                        printf("Skipping %s for failure retrieving initrd
",
                                        label->name);
                        return 1;
                }


                bootm_argv[2] = initrd_str;
                strncpy(bootm_argv[2], env_get("ramdisk_addr_r"), 18);
                strcat(bootm_argv[2], ":");
                strncat(bootm_argv[2], env_get("filesize"), 9);
        }else{
                void *buffer = (void *)env_get_ulong("ramdisk_addr_r", 16, 0);
                bootm_argv[2] = load_ramdisk_from_partition(buffer);
                if(bootm_argv[2]){
                    printk("initrd = %s 
", bootm_argv[2]);
                }
}

./make.shCROSS_COMPILE=aarch64-linux-gnu-rk3568

先進入kernel/linux/linux-5.10目錄
patch -p1 < kernel/linux/patches/linux-5.10/rk3568_patch/kernel.patch
修改device/board/hihope/rk3568/kernel/build_kernel.sh
注釋掉 
//patch-p1

把設備樹放到kernel/linux/linux-5.10/arch/arm64/boot/dts/rockchip/目錄
修改kernel/linux/linux-5.10/ make-ohos.sh


model_list=(
        "TB-RK3568X0   arm64 0xfe660000 rk3568-toybrick-x0-linux  Image rockchip_linux_defconfig"
        "TB-RK3568X10  arm64 0xfe660000 rk3568-toybrick-x10-linux Image rockchip_linux_defconfig"
)

CONFIG_DRM_PANEL_SIMPLE = y
kernel/linux/linux-5.10/drivers/gpu/drm/panel/panel-simple.c
注釋掉
//intpanel_simple_loader_protect(structdrm_panel*panel)

cmdline="appendearlycon=uart8250,mmio32,${uart}root=PARTUUID=614e0000-0000-4b53-8000-1d28000054a9rwrootwaitrootfstype=ext4

FIRMWARE_VER:11.0
MACHINE_MODEL:rk3568_r
MACHINE_ID:007
MANUFACTURER: rockchip
MAGIC: 0x5041524B
ATAG: 0x00200800
MACHINE: rk3568_r
CHECK_MASK: 0x80
PWR_HLD: 0,0,A,0,1
TYPE: GPT
CMDLINE:mtdparts=rk29xxnand:0x00002000@0x00002000(uboot),0x00002000@0x00004000(misc),0x00003000@0x00006000(resource),0x00030000@0x00009000(boot_linux:bootable),0x00002000@0x00039000(ramdisk),0x00400000@0x0003B000(system),0x00200000@0x0043B000(vendor),0x00019000@0x0063B000(sys-prod),0x00019000@0x00654000(chip-prod),0x00010000@0x0066D000(updater),-@0x0067D000(userdata:grow)
uuid:system=614e0000-0000-4b53-8000-1d28000054a9
uuid:boot_linux=a2d37d82-51e0-420d-83f5-470db993dd35

# fstab file.
#                                                                                     
/dev/block/platform/fe310000.sdhci/by-name/system               /usr       ext4     ro,barrier=1  wait,required
/dev/block/platform/fe310000.sdhci/by-name/vendor              /vendor        ext4     ro,barrier=1  wait,required
/dev/block/platform/fe310000.sdhci/by-name/sys-prod              /sys_prod        ext4     ro,barrier=1  wait
/dev/block/platform/fe310000.sdhci/by-name/chip-prod              /chip_prod        ext4     ro,barrier=1  wait
/dev/block/platform/fe310000.sdhci/by-name/userdata               /data       f2fs     discard,noatime,nosuid,nodev,fscrypt=2aes-256-xts  wait,check,fileencryption=software,quota
/dev/block/platform/fe310000.sdhci/by-name/misc/miscnonenonewait,required

    image_list += [
      "ramdisk",
      "updater_ramdisk",
]

&dsi1 {
        status = "okay";
        //rockchip,lane-rate = <200>;
        dsi1_panel: panel@0 {
                status = "okay";
                compatible = "simple-panel-dsi";
                reg = <0>;
                backlight = <&backlight>;
                reset-delay-ms = <60>;
                enable-delay-ms = <60>;
                prepare-delay-ms = <60>;
                unprepare-delay-ms = <60>;
                disable-delay-ms = <60>;
                dsi,flags = <(MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
                        MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_EOT_PACKET)>;
                dsi,format = ;
                dsi,lanes  = <4>;
                panel-init-sequence = [
                        05 78 01 11
                        05 14 01 29
                ];


                panel-exit-sequence = [
                        05 00 01 28
                        05 00 01 10
                ];


                disp_timings1: display-timings {
                        native-mode = <&dsi1_timing0>;
                        dsi1_timing0: timing0 {
                                clock-frequency = <150000000>;
                hactive = <1200>;
                vactive = <1920>;
                hback-porch = <120>;
                hfront-porch = <10>;
                vback-porch = <10>;


&hdmi {
        status = "okay";
        rockchip,phy-table =
                <92812500  0x8009 0x0000 0x0270>,
                <165000000 0x800b 0x0000 0x026d>,
                <185625000 0x800b 0x0000 0x01ed>,
                <297000000 0x800b 0x0000 0x01ad>,
                <594000000 0x8029 0x0000 0x0088>,
                <000000000 0x0000 0x0000 0x0000>;
};

CONFIG_DRM_PANEL_SIMPLE=y
CONFIG_DRM_ANALOGIX_DP=y
CONFIG_DRM_DW_HDMI=y
CONFIG_DRM_DW_HDMI_I2S_AUDIO=y
CONFIG_DRM_DW_HDMI_CEC=y
CONFIG_DRM_DW_MIPI_DSI=y

std::shared_ptr DrmDevice::Create()
{
    DISPLAY_DEBUGLOG();
    if (mDrmFd == nullptr) {
        const std::string name("rockchip");
        int drmFd = open("/dev/dri/card0", O_RDWR | O_CLOEXEC); // drmOpen(name.c_str(), nullptr);
}

int32_t DrmDisplay::Init()
{
    ...
    ...
    ret = preComp->Init();                                                                                          // gfx初始化，這里需要跳過
    DISPLAY_CHK_RETURN((ret != DISPLAY_SUCCESS), DISPLAY_FAILURE, DISPLAY_LOGE("can not init HdiGfxComposition"));  // 或者不判斷返回值
}

int32_t HdiGfxComposition::vector &layers, HdiLayer &clientLayer)
{
#if 0                                      // CPU合成
            layer->SetDeviceSelect(COMPOSITION_CLIENT);
#else
            if ((layer->GetCompositionType() != COMPOSITION_VIDEO) &&
                (layer->GetCompositionType() != COMPOSITION_CURSOR)) {
                layer->SetDeviceSelect(COMPOSITION_DEVICE);
            } else {
                layer->SetDeviceSelect(layer->GetCompositionType());
            }
#endif
}

constchar*g_drmFileNode="/dev/dri/card0";

   gt9xx: gt911@14 {
        compatible = "goodix,gt9xx";
        reg = <0x14>;
        pinctrl-names = "default";
        pinctrl-0 = <&tp_gpio>;
        goodix_irq_gpio = <&gpio3 RK_PB4 IRQ_TYPE_LEVEL_LOW>;
        goodix_rst_gpio = <&gpio3 RK_PB3 GPIO_ACTIVE_HIGH>;
          /*touchscreen-inverted-x;*/
          status = "okay";
};

//input_set_abs_params(ts->input_dev,ABS_MT_WIDTH_MAJOR,0,255,0,0);

"setparamsys.usb.controllerfcc00000.dwc3"