project:build.sh: Added fastboot support; custom modifications to U-Boot and kernel implemented using patches.

project:cfg:BoardConfig_IPC: Added fastboot BoardConfig file and firmware post-scripts, distinguishing between
the BoardConfigs for Luckfox Pico Pro and Luckfox Pico Max. project:app: Added fastboot_client and rk_smart_door
for quick boot applications; updated rkipc app to adapt to the latest media library. media:samples: Added more
usage examples. media:rockit: Fixed bugs; removed support for retrieving data frames from VPSS. media:isp:
Updated rkaiq library and related tools to support connection to RKISP_Tuner. sysdrv:Makefile: Added support for
compiling drv_ko on Luckfox Pico Ultra W using Ubuntu; added support for custom root filesystem.
sysdrv:tools:board: Updated Buildroot optional mirror sources, updated some software versions, and stored device
tree files and configuration files that undergo multiple modifications for U-Boot and kernel separately.
sysdrv:source:mcu: Used RISC-V MCU SDK with RT-Thread system, mainly for initializing camera AE during quick
boot. sysdrv:source:uboot: Added support for fastboot; added high baud rate DDR bin for serial firmware upgrades.
sysdrv:source:kernel: Upgraded to version 5.10.160; increased NPU frequency for RV1106G3; added support for
fastboot.

Signed-off-by: luckfox-eng29 <eng29@luckfox.com>

sysdrv/source/mcu/rt-thread/examples/ymodem/echo.c

@@ -0,0 +1,59 @@
+#include <ymodem.h>
+
+static rt_device_t _odev;
+
+static enum rym_code _rym_echo_data(
+        struct rym_ctx *ctx,
+        rt_uint8_t *buf,
+        rt_size_t len)
+{
+    rt_device_write(_odev, 0, buf, len);
+    return RYM_CODE_ACK;
+}
+
+rt_err_t rym_cat_to_dev(rt_device_t idev, rt_device_t odev)
+{
+    struct rym_ctx rctx;
+    rt_err_t res;
+    _odev = odev;
+
+    rt_kprintf("entering RYM mode\n");
+    odev->flag &= ~RT_DEVICE_FLAG_STREAM;
+    res = rt_device_open(odev, 0);
+    if (res != RT_EOK)
+    {
+        rt_kprintf("open output device error: 0x%x", -res);
+        return res;
+    }
+    res = rym_recv_on_device(&rctx, idev, RT_DEVICE_OFLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
+                             RT_NULL, _rym_echo_data, RT_NULL, 1000);
+    rt_device_close(_odev);
+    rt_kprintf("leaving RYM mode with code %X\n", res);
+    return res;
+}
+
+#ifdef RT_USING_FINSH
+#include <finsh.h>
+void rym_cat_vcom(void)
+{
+    extern rt_err_t rym_cat_to_dev(rt_device_t idev, rt_device_t odev);
+    rt_device_t idev, odev;
+
+    rt_thread_delay(RT_TICK_PER_SECOND*10);
+
+    idev = rt_device_find("uart1");
+    if (!idev)
+    {
+        rt_kprintf("could not find idev\n");
+    }
+    odev = rt_device_find("vcom");
+    if (!odev)
+    {
+        rt_kprintf("could not find odev\n");
+    }
+
+    rym_cat_to_dev(idev, odev);
+}
+FINSH_FUNCTION_EXPORT(rym_cat_vcom, test the YModem);
+#endif
+