diff options
| author |   Pali Rohár <pali.rohar@gmail.com> | 2017-11-10 00:38:26 +0100 |
|---|---|---|
| committer |   Kalle Valo <kvalo@codeaurora.org> | 2018-02-27 15:50:44 +0200 |
| commit | 3142467fc15ba19a327dcedafcf913bc7832f6d1 (patch) | |
| tree | 48bd5abf077811a653919bb8530d1b182505d12e /drivers/net/wireless/ti | |
| parent | wl1251: Parse and use MAC address from supplied NVS data (diff) | |
| download | linux-dev-3142467fc15ba19a327dcedafcf913bc7832f6d1.tar.xz linux-dev-3142467fc15ba19a327dcedafcf913bc7832f6d1.zip | |
wl1251: Set generated MAC address back to NVS data
In case there is no valid MAC address kernel generates random one. This
patch propagate this generated MAC address back to NVS data which will be
uploaded to wl1251 chip. So HW would have same MAC address as linux kernel
uses.
This should not change any functionality, but it is better to tell wl1251
correct mac address since beginning of chip usage.
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/ti')
| -rw-r--r-- | drivers/net/wireless/ti/wl1251/main.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/net/wireless/ti/wl1251/main.c b/drivers/net/wireless/ti/wl1251/main.c index 5ac7965c7d53..bd8641ad953b 100644 --- a/drivers/net/wireless/ti/wl1251/main.c +++ b/drivers/net/wireless/ti/wl1251/main.c @@ -1480,6 +1480,21 @@ static int wl1251_read_nvs_mac(struct wl1251 *wl) return 0; } +static int wl1251_write_nvs_mac(struct wl1251 *wl) +{ + int i, ret; + + ret = wl1251_check_nvs_mac(wl); + if (ret) + return ret; + + /* MAC is stored in reverse order */ + for (i = 0; i < ETH_ALEN; i++) + wl->nvs[NVS_OFF_MAC_DATA + i] = wl->mac_addr[ETH_ALEN - i - 1]; + + return 0; +} + static int wl1251_register_hw(struct wl1251 *wl) { int ret; @@ -1545,6 +1560,8 @@ int wl1251_init_ieee80211(struct wl1251 *wl) static const u8 nokia_oui[3] = {0x00, 0x1f, 0xdf}; memcpy(wl->mac_addr, nokia_oui, 3); get_random_bytes(wl->mac_addr + 3, 3); + if (!wl->use_eeprom) + wl1251_write_nvs_mac(wl); wl1251_warning("MAC address in eeprom or nvs data is not valid"); wl1251_warning("Setting random MAC address: %pM", wl->mac_addr); } |