hi there .
i'm work on mmc storage with sel4.
i wrote a simple app that use mmc an here is that :
//////////////////////////////////////////////////////////////////////
static int count = 0;
ps_io_ops_t io_ops = {0};
struct netif* net_if;
mmc_card_t mmc_card = 0;
sdio_host_dev_t sdio_host_dev;
int mmc_found = 0;
void mmc_irq_handle(ps_irq_t* irq) {
printf("mmc irq handle .... \n");
if(!mmc_found){
mmc_irq_acknowledge(irq);
// printf("mmc not found yet :)\n");
sdio_host_dev.handle_irq(&sdio_host_dev,irq->irq.number);
return ;
}
mmc_irq_acknowledge(irq);
mmc_handle_irq(mmc_card,irq->irq.number);
}
int run(void) {
notification = timer_notification();
int err = camkes_io_ops(&io_ops);
if (err != 0) {
ZF_LOGF("Can not init ops : %d\n", err);
};
printf("initialize sdhc1 ...\n");
err = sdio_init(SDHC1, &io_ops, &sdio_host_dev);
// while card not present check
while(sdio_host_dev.reset(&sdio_host_dev) == -1){
delay(1000);
}
printf("before mmc_init\n");
mmc_init(&sdio_host_dev, &io_ops, &mmc_card);
mmc_found = 1;
printf("after mmc_init\n");
if (!err) {
printf("SDHC1 inited successfully.\n");
} else {
printf("SDHC1 initizatino failed!: %d", err);
}
while (true) {
printf(".\n");
delay(1000);
}
return 0;
////////////////////////////////////////////////
its work but in mmc_init after going to mmc_reset , first command sent but in
second command (ie MMC_SEND_EXT_CSD ) wait for ever...
can any body help me?
best regards
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