105 lines
2.7 KiB
Diff
105 lines
2.7 KiB
Diff
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
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+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
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@@ -36,6 +36,7 @@
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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+#include <linux/clk.h>
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#include "rt2x00.h"
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#include "rt2800lib.h"
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@@ -8183,6 +8184,27 @@ static const struct rf_channel rf_vals_5
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{196, 83, 0, 12, 1},
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};
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+/*
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+ * RF value list for rt3xxx with Xtal20MHz
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+ * Supports: 2.4 GHz (all) (RF3322)
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+ */
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+static const struct rf_channel rf_vals_xtal20mhz_3x[] = {
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+ {1, 0xE2, 2, 0x14},
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+ {2, 0xE3, 2, 0x14},
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+ {3, 0xE4, 2, 0x14},
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+ {4, 0xE5, 2, 0x14},
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+ {5, 0xE6, 2, 0x14},
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+ {6, 0xE7, 2, 0x14},
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+ {7, 0xE8, 2, 0x14},
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+ {8, 0xE9, 2, 0x14},
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+ {9, 0xEA, 2, 0x14},
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+ {10, 0xEB, 2, 0x14},
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+ {11, 0xEC, 2, 0x14},
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+ {12, 0xED, 2, 0x14},
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+ {13, 0xEE, 2, 0x14},
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+ {14, 0xF0, 2, 0x18},
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+};
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+
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static int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
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{
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struct hw_mode_spec *spec = &rt2x00dev->spec;
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@@ -8273,7 +8295,10 @@ static int rt2800_probe_hw_mode(struct r
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case RF5390:
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case RF5392:
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spec->num_channels = 14;
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- spec->channels = rf_vals_3x;
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+ if (spec->clk_is_20mhz)
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+ spec->channels = rf_vals_xtal20mhz_3x;
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+ else
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+ spec->channels = rf_vals_3x;
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break;
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case RF3052:
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@@ -8457,6 +8482,20 @@ static int rt2800_probe_rt(struct rt2x00
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return 0;
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}
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+int rt2800_probe_clk(struct rt2x00_dev *rt2x00dev)
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+{
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+ struct hw_mode_spec *spec = &rt2x00dev->spec;
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+ struct clk *clk = clk_get(rt2x00dev->dev, NULL);
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+
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+ if (IS_ERR(clk))
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+ return PTR_ERR(clk);
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+
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+ if (clk_get_rate(clk) == 20000000)
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+ spec->clk_is_20mhz = 1;
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+
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+ return 0;
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+}
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+
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int rt2800_probe_hw(struct rt2x00_dev *rt2x00dev)
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{
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struct rt2800_drv_data *drv_data = rt2x00dev->drv_data;
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@@ -8499,6 +8538,15 @@ int rt2800_probe_hw(struct rt2x00_dev *r
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rt2800_register_write(rt2x00dev, GPIO_CTRL, reg);
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/*
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+ * Probe SoC clock.
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+ */
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+ if (rt2x00_is_soc(rt2x00dev)) {
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+ retval = rt2800_probe_clk(rt2x00dev);
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+ if (retval)
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+ return retval;
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+ }
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+
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+ /*
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* Initialize hw specifications.
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*/
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retval = rt2800_probe_hw_mode(rt2x00dev);
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--- a/drivers/net/wireless/ralink/rt2x00/rt2x00.h
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+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00.h
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@@ -401,6 +401,7 @@ static inline struct rt2x00_intf* vif_to
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* @channels: Device/chipset specific channel values (See &struct rf_channel).
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* @channels_info: Additional information for channels (See &struct channel_info).
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* @ht: Driver HT Capabilities (See &ieee80211_sta_ht_cap).
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+ * @clk_is_20mhz: External crystal of WiSoC is 20MHz instead of 40MHz
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*/
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struct hw_mode_spec {
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unsigned int supported_bands;
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@@ -417,6 +418,7 @@ struct hw_mode_spec {
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const struct channel_info *channels_info;
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struct ieee80211_sta_ht_cap ht;
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+ int clk_is_20mhz;
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};
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/*
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