[参考译文] PROCESSOR-SDK-AM335X：如何在 uboot/内核中启用调试消息

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1124641/processor-sdk-am335x-how-to-enable-debug-message-in-uboot-kernel

您好！

作为标题、如何启用调试消息？

例如、uboot 中有一个文件、调试消息如下所示、如何启用它？

路径：uBoot/disk/part.c

static struct blk_desc *get_dev_hwpart(const char *ifname, int dev, int hwpart)
{
	struct blk_desc *dev_desc;
	int ret;

	dev_desc = blk_get_devnum_by_typename(ifname, dev);
	if (!dev_desc) {
		debug("%s: No device for iface '%s', dev %d\n", __func__,
		      ifname, dev);
		return NULL;
	}
	ret = blk_dselect_hwpart(dev_desc, hwpart);
	if (ret) {
		debug("%s: Failed to select h/w partition: err-%d\n", __func__,
		      ret);
		return NULL;
	}

	return dev_desc;
}