mac80211: rt2x00: add support for mac addr from device tree

Backport upstream accepted patch which allows to override the EEPROM
mac address with one from device tree.

Signed-off-by: Mathias Kresin <dev@kresin.me>
This commit is contained in:
Mathias Kresin 2016-07-14 18:15:48 +02:00
parent e7c019c24d
commit b6832817eb
11 changed files with 197 additions and 90 deletions

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@ -0,0 +1,152 @@
From 0e31738ef78a814fcd2a55f2d57a21d322794da1 Mon Sep 17 00:00:00 2001
From: Mathias Kresin <dev@kresin.me>
Date: Fri, 26 Aug 2016 09:16:53 +0200
Subject: rt2x00: add support for mac addr from device tree
On some devices the EEPROMs of Ralink Wi-Fi chips have a default Ralink
MAC address set (RT3062F: 00:0C:43:30:62:00, RT3060F:
00:0C:43:30:60:00). Using multiple of these devices in the same network
can cause nasty issues.
Allow to override the MAC in the EEPROM with (a known good) one set in
the device tree to bypass the issue.
Signed-off-by: Mathias Kresin <dev@kresin.me>
---
drivers/net/wireless/ralink/rt2x00/rt2400pci.c | 5 +----
drivers/net/wireless/ralink/rt2x00/rt2500pci.c | 5 +----
drivers/net/wireless/ralink/rt2x00/rt2500usb.c | 5 +----
drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 5 +----
drivers/net/wireless/ralink/rt2x00/rt2x00.h | 1 +
drivers/net/wireless/ralink/rt2x00/rt2x00dev.c | 16 ++++++++++++++++
drivers/net/wireless/ralink/rt2x00/rt61pci.c | 5 +----
drivers/net/wireless/ralink/rt2x00/rt73usb.c | 5 +----
8 files changed, 23 insertions(+), 24 deletions(-)
--- a/drivers/net/wireless/ralink/rt2x00/rt2400pci.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2400pci.c
@@ -1459,10 +1459,7 @@ static int rt2400pci_validate_eeprom(str
* Start validation of the data that has been read.
*/
mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
- if (!is_valid_ether_addr(mac)) {
- eth_random_addr(mac);
- rt2x00_eeprom_dbg(rt2x00dev, "MAC: %pM\n", mac);
- }
+ rt2x00lib_set_mac_address(rt2x00dev, mac);
rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
if (word == 0xffff) {
--- a/drivers/net/wireless/ralink/rt2x00/rt2500pci.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2500pci.c
@@ -1585,10 +1585,7 @@ static int rt2500pci_validate_eeprom(str
* Start validation of the data that has been read.
*/
mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
- if (!is_valid_ether_addr(mac)) {
- eth_random_addr(mac);
- rt2x00_eeprom_dbg(rt2x00dev, "MAC: %pM\n", mac);
- }
+ rt2x00lib_set_mac_address(rt2x00dev, mac);
rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
if (word == 0xffff) {
--- a/drivers/net/wireless/ralink/rt2x00/rt2500usb.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2500usb.c
@@ -1349,10 +1349,7 @@ static int rt2500usb_validate_eeprom(str
* Start validation of the data that has been read.
*/
mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
- if (!is_valid_ether_addr(mac)) {
- eth_random_addr(mac);
- rt2x00_eeprom_dbg(rt2x00dev, "MAC: %pM\n", mac);
- }
+ rt2x00lib_set_mac_address(rt2x00dev, mac);
rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
if (word == 0xffff) {
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
@@ -7531,10 +7531,7 @@ static int rt2800_validate_eeprom(struct
* Start validation of the data that has been read.
*/
mac = rt2800_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
- if (!is_valid_ether_addr(mac)) {
- eth_random_addr(mac);
- rt2x00_eeprom_dbg(rt2x00dev, "MAC: %pM\n", mac);
- }
+ rt2x00lib_set_mac_address(rt2x00dev, mac);
rt2800_eeprom_read(rt2x00dev, EEPROM_NIC_CONF0, &word);
if (word == 0xffff) {
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00.h
@@ -1416,6 +1416,7 @@ static inline void rt2x00debug_dump_fram
*/
u32 rt2x00lib_get_bssidx(struct rt2x00_dev *rt2x00dev,
struct ieee80211_vif *vif);
+void rt2x00lib_set_mac_address(struct rt2x00_dev *rt2x00dev, u8 *eeprom_mac_addr);
/*
* Interrupt context handlers.
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c
@@ -26,6 +26,8 @@
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/log2.h>
+#include <linux/of.h>
+#include <linux/of_net.h>
#include "rt2x00.h"
#include "rt2x00lib.h"
@@ -931,6 +933,21 @@ static void rt2x00lib_rate(struct ieee80
entry->flags |= IEEE80211_RATE_SHORT_PREAMBLE;
}
+void rt2x00lib_set_mac_address(struct rt2x00_dev *rt2x00dev, u8 *eeprom_mac_addr)
+{
+ const char *mac_addr;
+
+ mac_addr = of_get_mac_address(rt2x00dev->dev->of_node);
+ if (mac_addr)
+ ether_addr_copy(eeprom_mac_addr, mac_addr);
+
+ if (!is_valid_ether_addr(eeprom_mac_addr)) {
+ eth_random_addr(eeprom_mac_addr);
+ rt2x00_eeprom_dbg(rt2x00dev, "MAC: %pM\n", eeprom_mac_addr);
+ }
+}
+EXPORT_SYMBOL_GPL(rt2x00lib_set_mac_address);
+
static int rt2x00lib_probe_hw_modes(struct rt2x00_dev *rt2x00dev,
struct hw_mode_spec *spec)
{
--- a/drivers/net/wireless/ralink/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt61pci.c
@@ -2413,10 +2413,7 @@ static int rt61pci_validate_eeprom(struc
* Start validation of the data that has been read.
*/
mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
- if (!is_valid_ether_addr(mac)) {
- eth_random_addr(mac);
- rt2x00_eeprom_dbg(rt2x00dev, "MAC: %pM\n", mac);
- }
+ rt2x00lib_set_mac_address(rt2x00dev, mac);
rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
if (word == 0xffff) {
--- a/drivers/net/wireless/ralink/rt2x00/rt73usb.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt73usb.c
@@ -1766,10 +1766,7 @@ static int rt73usb_validate_eeprom(struc
* Start validation of the data that has been read.
*/
mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
- if (!is_valid_ether_addr(mac)) {
- eth_random_addr(mac);
- rt2x00_eeprom_dbg(rt2x00dev, "MAC: %pM\n", mac);
- }
+ rt2x00lib_set_mac_address(rt2x00dev, mac);
rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
if (word == 0xffff) {

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@ -0,0 +1,26 @@
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c
@@ -936,7 +936,12 @@ static void rt2x00lib_rate(struct ieee80
void rt2x00lib_set_mac_address(struct rt2x00_dev *rt2x00dev, u8 *eeprom_mac_addr)
{
const char *mac_addr;
-
+ struct rt2x00_platform_data *pdata;
+
+ pdata = rt2x00dev->dev->platform_data;
+ if (pdata)
+ ether_addr_copy(pdata->mac_address, eeprom_mac_addr);
+
mac_addr = of_get_mac_address(rt2x00dev->dev->of_node);
if (mac_addr)
ether_addr_copy(eeprom_mac_addr, mac_addr);
--- a/include/linux/rt2x00_platform.h
+++ b/include/linux/rt2x00_platform.h
@@ -14,6 +14,7 @@
struct rt2x00_platform_data {
char *eeprom_file_name;
+ const u8 *mac_address;
int disable_2ghz;
int disable_5ghz;

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@ -1,63 +0,0 @@
--- a/include/linux/rt2x00_platform.h
+++ b/include/linux/rt2x00_platform.h
@@ -14,6 +14,7 @@
struct rt2x00_platform_data {
char *eeprom_file_name;
+ const u8 *mac_address;
int disable_2ghz;
int disable_5ghz;
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c
@@ -931,6 +931,18 @@ static void rt2x00lib_rate(struct ieee80
entry->flags |= IEEE80211_RATE_SHORT_PREAMBLE;
}
+const u8 *rt2x00lib_get_mac_address(struct rt2x00_dev *rt2x00dev)
+{
+ struct rt2x00_platform_data *pdata;
+
+ pdata = rt2x00dev->dev->platform_data;
+ if (!pdata)
+ return NULL;
+
+ return pdata->mac_address;
+}
+EXPORT_SYMBOL_GPL(rt2x00lib_get_mac_address);
+
static int rt2x00lib_probe_hw_modes(struct rt2x00_dev *rt2x00dev,
struct hw_mode_spec *spec)
{
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00.h
@@ -1416,6 +1416,7 @@ static inline void rt2x00debug_dump_fram
*/
u32 rt2x00lib_get_bssidx(struct rt2x00_dev *rt2x00dev,
struct ieee80211_vif *vif);
+const u8 *rt2x00lib_get_mac_address(struct rt2x00_dev *rt2x00dev);
/*
* Interrupt context handlers.
--- a/drivers/net/wireless/ralink/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt61pci.c
@@ -2392,6 +2392,7 @@ static int rt61pci_validate_eeprom(struc
u32 reg;
u16 word;
u8 *mac;
+ const u8 *pdata_mac;
s8 value;
rt2x00mmio_register_read(rt2x00dev, E2PROM_CSR, &reg);
@@ -2412,7 +2413,11 @@ static int rt61pci_validate_eeprom(struc
/*
* Start validation of the data that has been read.
*/
+ pdata_mac = rt2x00lib_get_mac_address(rt2x00dev);
mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
+ if (pdata_mac)
+ memcpy(mac, pdata_mac, 6);
+
if (!is_valid_ether_addr(mac)) {
eth_random_addr(mac);
rt2x00_eeprom_dbg(rt2x00dev, "MAC: %pM\n", mac);

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@ -1,14 +1,6 @@
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c
@@ -26,6 +26,7 @@
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/log2.h>
+#include <linux/of.h>
#include "rt2x00.h"
#include "rt2x00lib.h"
@@ -951,6 +952,16 @@ static int rt2x00lib_probe_hw_modes(stru
@@ -961,6 +961,16 @@ static int rt2x00lib_probe_hw_modes(stru
struct ieee80211_rate *rates;
unsigned int num_rates;
unsigned int i;

View File

@ -96,7 +96,7 @@
rt2800_rfcsr_write(rt2x00dev, 59, 0x00);
rt2800_rfcsr_write(rt2x00dev, 60, 0x00);
rt2800_rfcsr_write(rt2x00dev, 61, 0x00);
@@ -7675,6 +7708,7 @@ static int rt2800_init_eeprom(struct rt2
@@ -7672,6 +7705,7 @@ static int rt2800_init_eeprom(struct rt2
* RT53xx: defined in "EEPROM_CHIP_ID" field
*/
if (rt2x00_rt(rt2x00dev, RT3290) ||
@ -104,7 +104,7 @@
rt2x00_rt(rt2x00dev, RT5390) ||
rt2x00_rt(rt2x00dev, RT5392))
rt2800_eeprom_read(rt2x00dev, EEPROM_CHIP_ID, &rf);
@@ -7770,7 +7804,8 @@ static int rt2800_init_eeprom(struct rt2
@@ -7767,7 +7801,8 @@ static int rt2800_init_eeprom(struct rt2
/*
* Detect if this device has Bluetooth co-existence.
*/
@ -114,7 +114,7 @@
__set_bit(CAPABILITY_BT_COEXIST, &rt2x00dev->cap_flags);
/*
@@ -7799,6 +7834,22 @@ static int rt2800_init_eeprom(struct rt2
@@ -7796,6 +7831,22 @@ static int rt2800_init_eeprom(struct rt2
EIRP_MAX_TX_POWER_LIMIT)
__set_bit(CAPABILITY_POWER_LIMIT, &rt2x00dev->cap_flags);

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@ -210,7 +210,7 @@
case RT5390:
rt2800_init_rfcsr_5390(rt2x00dev);
break;
@@ -7577,6 +7679,12 @@ static int rt2800_validate_eeprom(struct
@@ -7574,6 +7676,12 @@ static int rt2800_validate_eeprom(struct
rt2x00_set_field16(&word, EEPROM_NIC_CONF0_RF_TYPE, RF2820);
rt2800_eeprom_write(rt2x00dev, EEPROM_NIC_CONF0, word);
rt2x00_eeprom_dbg(rt2x00dev, "Antenna: 0x%04x\n", word);
@ -223,7 +223,7 @@
} else if (rt2x00_rt(rt2x00dev, RT2860) ||
rt2x00_rt(rt2x00dev, RT2872)) {
/*
@@ -7715,6 +7823,8 @@ static int rt2800_init_eeprom(struct rt2
@@ -7712,6 +7820,8 @@ static int rt2800_init_eeprom(struct rt2
rt2800_eeprom_read(rt2x00dev, EEPROM_CHIP_ID, &rf);
else if (rt2x00_rt(rt2x00dev, RT3883))
rf = RF3853;
@ -232,7 +232,7 @@
else
rf = rt2x00_get_field16(eeprom, EEPROM_NIC_CONF0_RF_TYPE);
@@ -7734,6 +7844,7 @@ static int rt2800_init_eeprom(struct rt2
@@ -7731,6 +7841,7 @@ static int rt2800_init_eeprom(struct rt2
case RF3320:
case RF3322:
case RF3853:
@ -240,7 +240,7 @@
case RF5360:
case RF5362:
case RF5370:
@@ -8291,6 +8402,7 @@ static int rt2800_probe_hw_mode(struct r
@@ -8288,6 +8399,7 @@ static int rt2800_probe_hw_mode(struct r
case RF3290:
case RF3320:
case RF3322:
@ -248,7 +248,7 @@
case RF5360:
case RF5362:
case RF5370:
@@ -8430,6 +8542,7 @@ static int rt2800_probe_hw_mode(struct r
@@ -8427,6 +8539,7 @@ static int rt2800_probe_hw_mode(struct r
case RF3070:
case RF3290:
case RF3853:
@ -256,7 +256,7 @@
case RF5360:
case RF5362:
case RF5370:
@@ -8470,6 +8583,7 @@ static int rt2800_probe_rt(struct rt2x00
@@ -8467,6 +8580,7 @@ static int rt2800_probe_rt(struct rt2x00
case RT3572:
case RT3593:
case RT3883:

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@ -8,7 +8,7 @@
#include "rt2x00.h"
#include "rt2800lib.h"
@@ -7934,6 +7935,17 @@ static int rt2800_init_eeprom(struct rt2
@@ -7931,6 +7932,17 @@ static int rt2800_init_eeprom(struct rt2
rt2800_init_led(rt2x00dev, &rt2x00dev->led_assoc, LED_TYPE_ASSOC);
rt2800_init_led(rt2x00dev, &rt2x00dev->led_qual, LED_TYPE_QUALITY);

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@ -1,6 +1,6 @@
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c
@@ -1283,7 +1283,7 @@ static inline void rt2x00lib_set_if_comb
@@ -1292,7 +1292,7 @@ static inline void rt2x00lib_set_if_comb
*/
if_limit = &rt2x00dev->if_limits_ap;
if_limit->max = rt2x00dev->ops->max_ap_intf;

View File

@ -1,6 +1,6 @@
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
@@ -7818,10 +7818,11 @@ static int rt2800_init_eeprom(struct rt2
@@ -7815,10 +7815,11 @@ static int rt2800_init_eeprom(struct rt2
* RT53xx: defined in "EEPROM_CHIP_ID" field
*/
if (rt2x00_rt(rt2x00dev, RT3290) ||

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@ -17,7 +17,7 @@
/*
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c
@@ -144,7 +144,8 @@ static void rt2x00lib_intf_scheduled_ite
@@ -145,7 +145,8 @@ static void rt2x00lib_intf_scheduled_ite
if (test_and_clear_bit(DELAYED_UPDATE_BEACON, &intf->delayed_flags)) {
mutex_lock(&intf->beacon_skb_mutex);
@ -27,7 +27,7 @@
mutex_unlock(&intf->beacon_skb_mutex);
}
}
@@ -207,6 +208,7 @@ static void rt2x00lib_beaconupdate_iter(
@@ -208,6 +209,7 @@ static void rt2x00lib_beaconupdate_iter(
struct ieee80211_vif *vif)
{
struct rt2x00_dev *rt2x00dev = data;
@ -35,7 +35,7 @@
if (vif->type != NL80211_IFTYPE_AP &&
vif->type != NL80211_IFTYPE_ADHOC &&
@@ -220,7 +222,8 @@ static void rt2x00lib_beaconupdate_iter(
@@ -221,7 +223,8 @@ static void rt2x00lib_beaconupdate_iter(
* never be called for USB devices.
*/
WARN_ON(rt2x00_is_usb(rt2x00dev));

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@ -1176,7 +1176,7 @@
break;
case RT5392:
rt2800_init_rfcsr_5392(rt2x00dev);
@@ -7859,6 +8798,7 @@ static int rt2800_init_eeprom(struct rt2
@@ -7856,6 +8795,7 @@ static int rt2800_init_eeprom(struct rt2
case RF5390:
case RF5392:
case RF5592:
@ -1184,7 +1184,7 @@
break;
default:
rt2x00_err(rt2x00dev, "Invalid RF chipset 0x%04x detected\n",
@@ -8427,6 +9367,7 @@ static int rt2800_probe_hw_mode(struct r
@@ -8424,6 +9364,7 @@ static int rt2800_probe_hw_mode(struct r
case RF5372:
case RF5390:
case RF5392:
@ -1192,7 +1192,7 @@
spec->num_channels = 14;
if (spec->clk_is_20mhz)
spec->channels = rf_vals_xtal20mhz_3x;
@@ -8567,6 +9508,7 @@ static int rt2800_probe_hw_mode(struct r
@@ -8564,6 +9505,7 @@ static int rt2800_probe_hw_mode(struct r
case RF5372:
case RF5390:
case RF5392: