I have a 16 bit PCMCIA card driver I am working on which requires memory
windows to read and write both attribute and common memory. Card needs only
memory windows to work (no IO or irq).
I use the foll. method to get access to the card memory windows after
setting up the window attributes appropriately
link->conf.ConfigBase = parse.config.base;
link->conf.Present = parse.config.rmask[0];
link->conf.IntType = INT_MEMORY;
dev->request_attr_memory.Attributes = ( WIN_DATA_WIDTH_8 |
WIN_MEMORY_TYPE_AM | WIN_ENABLE );
dev->request_attr_memory.Base = 0;
dev->request_attr_memory.Size = 0x1000;
dev->request_attr_memory.AccessSpeed = 200;
ret = pcmcia_request_window(&link, &dev->request_attr_memory,
&dev->handle_attr_memory);
if (ret != 0) {
cs_error(link, RequestWindow, ret);
}
memreq_attr_memory.CardOffset = 0;
memreq_attr_memory.Page = 0;
ret = pcmcia_map_mem_page(dev->handle_attr_memory, &memreq_attr_memory);
if (ret != 0) {
cs_error(link, MapMemPage, ret);}
dev->attr_memory = ioremap( dev->request_attr_memory.Base,
dev->request_attr_memory.Size);
All the above succeed and then I call pcmcia_request_configuration
Now if I try to dump say the first 512 bytes of memory at the address
returned by ioremap - the bytes there dont look anything like what I am
supposed to see in the CIS. In fact they are all 0's. Same with common
memory window that I request and create like the above except for the size
and attribute being differnet
So I am obviously not doing something right here ....
Any pointers on what I am/could be doing wrong will be much appreciated.
Thanks
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