request_mem_region() error in uClinux

Ok got it, I had to modify atse.c and altera_tse.c

thanks to the following thread

alteraforum.com/forum/showthread.php?t=18802

here are the modifications:

* in atse.c, replace

----------

if (!request_mem_region(res_sgdma_rx_mem->start, res_sgdma_rx_mem->end - res_sgdma_rx_mem->start + 1, ATSE_CARDNAME)) {
			printk("******ATSE:%s:%d:request_mem_region() failed\n", __FILE__, __LINE__);
			ret = -EBUSY;
			goto out;
	}

by:

if (!request_mem_region(res_sgdma_rx_mem->start, res_sgdma_rx_mem->end - res_sgdma_rx_mem->start + 1, ATSE_CARDNAME)) {
		reg_resource = __request_region(&iomem_resource, res_sgdma_rx_mem->start, res_sgdma_rx_mem->end - res_sgdma_rx_mem->start + 1, ATSE_CARDNAME,0);
		if(reg_resource != NULL && reg_resource->flags & IORESOURCE_BUSY)
		{
			printk("******ATSE:%s:%d:request_mem_region() failed\n", __FILE__, __LINE__);
			ret = -EBUSY;
			goto out;
		}
	}

and

if (!request_mem_region(res_sgdma_tx_mem->start, res_sgdma_tx_mem->end - res_sgdma_tx_mem->start + 1, ATSE_CARDNAME)) {
			printk("******ATSE:%s:%d:request_mem_region() failed\n", __FILE__, __LINE__);
			ret = -EBUSY;
			goto out;
	}

by:

if (!request_mem_region(res_sgdma_tx_mem->start, res_sgdma_tx_mem->end - res_sgdma_tx_mem->start + 1, ATSE_CARDNAME)) {
		reg_resource = __request_region(&iomem_resource, res_sgdma_tx_mem->start, res_sgdma_tx_mem->end - res_sgdma_tx_mem->start + 1, ATSE_CARDNAME,0);
		if(reg_resource != NULL && reg_resource->flags & IORESOURCE_BUSY)
		{
			printk("******ATSE:%s:%d:request_mem_region() failed\n", __FILE__, __LINE__);
			ret = -EBUSY;
			goto out;
		}
	}

* in altera_tse.c, replace

---------------

if (!request_mem_region(sgdma_rx_base, sgdma_rx_size, "altera_tse")) {
		printk(KERN_ERR "ERROR: %s:%d: request_mem_region() failed\n", __FILE__, __LINE__);
		ret = -EBUSY;
		goto out_sgdma_rx;
	}

by

if (!request_mem_region(sgdma_rx_base, sgdma_rx_size, "altera_tse")) {
		reg_resource = __request_region(&iomem_resource, sgdma_rx_base, sgdma_rx_size, " altera_tse" ,0);
		if(reg_resource != NULL && reg_resource->flags & IORESOURCE_BUSY)
		{
			printk(KERN_ERR "ERROR: %s:%d: request_mem_region() failed\n", __FILE__, __LINE__);
			ret = -EBUSY;
			goto out_sgdma_rx;
		}
	}

and

if (!request_mem_region(sgdma_tx_base, sgdma_tx_size, "altera_tse")) {
		printk(KERN_ERR "ERROR: %s:%d: request_mem_region() failed\n", __FILE__, __LINE__);
		ret = -EBUSY;
		goto out_sgdma_tx;
	}

by

if (!request_mem_region(sgdma_tx_base, sgdma_tx_size, "altera_tse")) {
		reg_resource = __request_region(&iomem_resource, sgdma_tx_base, sgdma_tx_size, " altera_tse" ,0);
		if(reg_resource != NULL && reg_resource->flags & IORESOURCE_BUSY)
		{
			printk(KERN_ERR "ERROR: %s:%d: request_mem_region() failed\n", __FILE__, __LINE__);
			ret = -EBUSY;
			goto out_sgdma_tx;
		}
	}

* in both files, and at the beginning of the functions where we made the modifications declare reg_resource by adding the following line

struct resource *reg_resource;

after compiling and downloading the image

I was able to start eth0 by typing :

# ifconfig eth0 up