Hi,
On Tue, Dec 15, 2009 at 05:04:30AM +0100, ext Gupta, Ajay Kumar wrote:
musb->config->dyn_fifo is coming from platform files and is user defined
but we need to check if the mentor core itself supports dynamic fifo.
See the dynamic fifo code snippet:
--------------------------------------------------------
if (reg & MUSB_CONFIGDATA_DYNFIFO) {
if (musb->config->dyn_fifo)
status = ep_config_from_table(musb);
else {
ERR("reconfigure software for Dynamic FIFOs\n");
status = -ENODEV;
}
} else {
--------------------------------------------------------
If CONFIGDATA register bit indicates that dynamic FIFO is supported then
musb->config->dyn_fifo has to be set to '1' for suceessful initialization.
Thus CONFIGDATA register bit alone is sufficient condition to save/restore
Tx/Rx FIFOSZ/FIFOADDR registers.
yes, but if the user has to reconfigure the sw for dyn_fifo anyways, so
we can be sure musb->config->dyn_fifo is correct when you need.
--
balbi
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