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r8152: load the default MAC address

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Except for RTL_VER_01, replace loading the MAC address from PLA_IDR
with from PLA_BACKUP. The default MAC address may be modified by
the other OS, so the PLA_IDR may be not the default MAC address.

The data in the PLA_BACKUP address of the RTL_VER_01 may be destoryed,
so load MAC address from PLA_IDR for RTL_VER_01.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
hayeswang 2014-02-18 21:49:01 +08:00 committed by David S. Miller
parent b97027233d
commit 8a91c8246a
1 changed files with 17 additions and 2 deletions
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19
drivers/net/usb/r8152.c
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@ -889,11 +889,26 @@ int r8152_submit_rx(struct r8152 *tp, struct rx_agg *agg, gfp_t mem_flags);
static inline void set_ethernet_addr(struct r8152 *tp)
{
struct net_device *dev = tp->netdev;
int ret;
u8 node_id[8] = {0};
if (pla_ocp_read(tp, PLA_IDR, sizeof(node_id), node_id) < 0)
if (tp->version == RTL_VER_01)
ret = pla_ocp_read(tp, PLA_IDR, sizeof(node_id), node_id);
else
ret = pla_ocp_read(tp, PLA_BACKUP, sizeof(node_id), node_id);
if (ret < 0) {
netif_notice(tp, probe, dev, "inet addr fail\n");
else {
} else {
if (tp->version != RTL_VER_01) {
ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR,
CRWECR_CONFIG);
pla_ocp_write(tp, PLA_IDR, BYTE_EN_SIX_BYTES,
sizeof(node_id), node_id);
ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR,
CRWECR_NORAML);
}
memcpy(dev->dev_addr, node_id, dev->addr_len);
memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
}