forked from freifunk-franken/firmware
51 lines
2.0 KiB
Diff
51 lines
2.0 KiB
Diff
From: Adrian Schmutzler <freifunk@adrianschmutzler.de>
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Date: Fri, 16 Oct 2020 13:36:02 +0200
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Subject: mt76: mt7603: allow eeprom sections starting with 7600
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Fixes low signal issue for 2.4 GHz for the TP-Link Archer C50 v4.
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The first two bytes in the eeprom are the chip id. The working
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devices have 0x7628 there, whereas the non-working devices have
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0x7600 there. This chip id gets checked by the function
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mt7603_check_eeprom() which leads the driver to ignore the
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contents of the eeprom partition and load default values from otp.
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The has been manually added based on mt76 PR:
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https://github.com/openwrt/mt76/pull/442/
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Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
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diff --git a/package/kernel/mt76/patches/0001-fix-archer-c50-v4.patch b/package/kernel/mt76/patches/0001-fix-archer-c50-v4.patch
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new file mode 100644
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index 0000000000000000000000000000000000000000..29e422dc0c7f3046be0aa761bcfe8db1e298ed88
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--- /dev/null
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+++ b/package/kernel/mt76/patches/0001-fix-archer-c50-v4.patch
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@@ -0,0 +1,28 @@
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+From b0c7f88d900d2986cd2061113201825eda6a6482 Mon Sep 17 00:00:00 2001
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+From: Ron Asimi <ron.asimi@gmail.com>
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+Date: Wed, 2 Sep 2020 23:18:23 -0400
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+Subject: [PATCH] mt7603: allow eeprom sections starting with 7600
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+
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+Fixes low signal issue for 2.4 GHz for the TP-Link Archer C50 v4.
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+The first two bytes in the eeprom are the chip id. The working
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+devices have 0x7628 there, whereas the non-working devices have
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+0x7600 there. This chip id gets checked by the function
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+mt7603_check_eeprom() which leads the driver to ignore the contents
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+of the eeprom partition and load default values from otp.
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+
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+---
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+ mt7603/eeprom.c | 1 +
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+ 1 file changed, 1 insertion(+)
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+
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+diff --git a/mt7603/eeprom.c b/mt7603/eeprom.c
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+index 01f1e0da..9d5042af 100644
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+--- a/mt7603/eeprom.c
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++++ b/mt7603/eeprom.c
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+@@ -136,6 +136,7 @@ static int mt7603_check_eeprom(struct mt76_dev *dev)
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+ switch (val) {
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+ case 0x7628:
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+ case 0x7603:
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++ case 0x7600:
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+ return 0;
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+ default:
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+ return -EINVAL;
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