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FEC: Add timeout for chip reset 

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Ben Warren <biggerbadderben@gmail.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Detlev Zundel <dzu@denx.de>
This commit is contained in:
Marek Vasut 2011-09-11 18:05:37 +00:00 committed by Albert ARIBAUD
parent 2e5f44213f
commit e382fb4873
1 changed files with 21 additions and 4 deletions
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25
drivers/net/fec_mxc.c
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@ -695,18 +695,22 @@ static int fec_probe(bd_t *bd, int dev_id, int phy_id, uint32_t base_addr)
struct eth_device *edev;
struct fec_priv *fec;
unsigned char ethaddr[6];
uint32_t start;
int ret = 0;
/* create and fill edev struct */
edev = (struct eth_device *)malloc(sizeof(struct eth_device));
if (!edev) {
puts("fec_mxc: not enough malloc memory for eth_device\n");
return -ENOMEM;
ret = -ENOMEM;
goto err1;
}
fec = (struct fec_priv *)malloc(sizeof(struct fec_priv));
if (!fec) {
puts("fec_mxc: not enough malloc memory for fec_priv\n");
return -ENOMEM;
ret = -ENOMEM;
goto err2;
}
memset(edev, 0, sizeof(*edev));
@ -726,8 +730,14 @@ static int fec_probe(bd_t *bd, int dev_id, int phy_id, uint32_t base_addr)
/* Reset chip. */
writel(readl(&fec->eth->ecntrl) | FEC_ECNTRL_RESET, &fec->eth->ecntrl);
while (readl(&fec->eth->ecntrl) & FEC_ECNTRL_RESET)
start = get_timer(0);
while (readl(&fec->eth->ecntrl) & FEC_ECNTRL_RESET) {
if (get_timer(start) > (CONFIG_SYS_HZ * 5)) {
printf("FEC MXC: Timeout reseting chip\n");
goto err3;
}
udelay(10);
}
/*
* Set interrupt mask register
@ -767,7 +777,14 @@ static int fec_probe(bd_t *bd, int dev_id, int phy_id, uint32_t base_addr)
memcpy(edev->enetaddr, ethaddr, 6);
}
return 0;
return ret;
err3:
free(fec);
err2:
free(edev);
err1:
return ret;
}
#ifndef CONFIG_FEC_MXC_MULTI