static void board_init_enetaddr(uchar *mac_addr)
{
bool valid_mac = false;
/* the MAC is stored in OTP memory page 0xDF */
uint32_t ret;
uint64_t otp_mac;
ret = bfrom_OtpRead(0xDF, OTP_LOWER_HALF, &otp_mac);
if (!(ret & OTP_MASTER_ERROR)) {
uchar *otp_mac_p = (uchar *)&otp_mac;
for (ret = 0; ret < 6; ++ret)
mac_addr[ret] = otp_mac_p[5 - ret];
if (is_valid_ether_addr(mac_addr))
valid_mac = true;
}
if (!valid_mac) {
puts("Warning: Generating 'random' MAC address\n");
bfin_gen_rand_mac(mac_addr);
}
eth_setenv_enetaddr("ethaddr", mac_addr);
}
static void board_init_enetaddr(uchar *mac_addr)
{
/* the MAC is stored in OTP memory page 0xDF */
uint32_t ret;
uint64_t otp_mac;
ret = bfrom_OtpRead(0xDF, OTP_LOWER_HALF, &otp_mac);
if (!(ret & OTP_MASTER_ERROR)) {
uchar *otp_mac_p = (uchar *)&otp_mac;
for (ret = 0; ret < 6; ++ret)
mac_addr[ret] = otp_mac_p[5 - ret];
if (is_valid_ethaddr(mac_addr))
eth_setenv_enetaddr("ethaddr", mac_addr);
}
}
/**
* bfin_otp_read - Read OTP pages
*
* All reads must be in half page chunks (half page == 64 bits).
*/
static ssize_t bfin_otp_read(struct file *file, char __user *buff, size_t count, loff_t *pos)
{
ssize_t bytes_done;
u32 page, flags, ret;
u64 content;
stampit();
if (count % sizeof(u64))
return -EMSGSIZE;
if (mutex_lock_interruptible(&bfin_otp_lock))
return -ERESTARTSYS;
bytes_done = 0;
page = *pos / (sizeof(u64) * 2);
while (bytes_done < count) {
flags = (*pos % (sizeof(u64) * 2) ? OTP_UPPER_HALF : OTP_LOWER_HALF);
stamp("processing page %i (0x%x:%s)", page, flags,
(flags & OTP_UPPER_HALF ? "upper" : "lower"));
ret = bfrom_OtpRead(page, flags, &content);
if (ret & OTP_MASTER_ERROR) {
stamp("error from otp: 0x%x", ret);
bytes_done = -EIO;
break;
}
if (copy_to_user(buff + bytes_done, &content, sizeof(content))) {
bytes_done = -EFAULT;
break;
}
if (flags & OTP_UPPER_HALF)
++page;
bytes_done += sizeof(content);
*pos += sizeof(content);
}
mutex_unlock(&bfin_otp_lock);
return bytes_done;
}
