OpenWrt – Rev 4

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--- a/include/linux/rt2x00_platform.h
+++ b/include/linux/rt2x00_platform.h
@@ -14,6 +14,9 @@
 
 struct rt2x00_platform_data {
        char *eeprom_file_name;
+
+       int disable_2ghz;
+       int disable_5ghz;
 };
 
 #endif /* _RT2X00_PLATFORM_H */
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c
@@ -1026,6 +1026,22 @@ static int rt2x00lib_probe_hw_modes(stru
        unsigned int num_rates;
        unsigned int i;
 
+       if (rt2x00dev->dev->platform_data) {
+               struct rt2x00_platform_data *pdata;
+
+               pdata = rt2x00dev->dev->platform_data;
+               if (pdata->disable_2ghz)
+                       spec->supported_bands &= ~SUPPORT_BAND_2GHZ;
+               if (pdata->disable_5ghz)
+                       spec->supported_bands &= ~SUPPORT_BAND_5GHZ;
+       }
+
+       if ((spec->supported_bands & SUPPORT_BAND_BOTH) == 0) {
+               rt2x00_err(rt2x00dev, "No supported bands\n");
+               return -EINVAL;
+       }
+
+
        num_rates = 0;
        if (spec->supported_rates & SUPPORT_RATE_CCK)
                num_rates += 4;
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00.h
@@ -409,6 +409,7 @@ struct hw_mode_spec {
        unsigned int supported_bands;
 #define SUPPORT_BAND_2GHZ      0x00000001
 #define SUPPORT_BAND_5GHZ      0x00000002
+#define SUPPORT_BAND_BOTH      (SUPPORT_BAND_2GHZ | SUPPORT_BAND_5GHZ)
 
        unsigned int supported_rates;
 #define SUPPORT_RATE_CCK       0x00000001