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Some ath10k IPQ40xx devices like the MikroTik hAP ac2 and ac3 require the BDF-s to be extracted from the device storage instead of shipping packaged API 2 BDF-s. This is required as MikroTik has started shipping boards that require BDF-s to be updated, as otherwise their WLAN performance really suffers. This is however impossible as the devices that require this are release under the same revision and its not possible to differentiate them from devices using the older BDF-s. In OpenWrt we are extracting the calibration data during runtime and we are able to extract the BDF-s in the same manner, however we cannot package the BDF-s to API 2 format on the fly and can only use API 1 to provide BDF-s on the fly. This is an issue as the ath10k driver explicitly looks only for the board.bin file and not for something like board-bus-device.bin like it does for pre-cal data. Due to this we have no way of providing correct BDF-s on the fly, so lets extend the ath10k driver to first look for BDF-s in the board-bus-device.bin format, for example: board-ahb-a800000.wifi.bin If that fails, look for the default board file name as defined previously. So, backport the upstream ath10k patch. Signed-off-by: Robert Marko <robimarko@gmail.com>
38 lines
1.3 KiB
Diff
38 lines
1.3 KiB
Diff
From 22fb5991a44c78ff18ec0082dc90c809356eb893 Mon Sep 17 00:00:00 2001
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From: Ansuel Smith <ansuelsmth@gmail.com>
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Date: Sun, 27 Sep 2020 19:23:35 +0200
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Subject: [PATCH 1/2] ath10k: Try to get mac-address from dts
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Most of embedded device that have the ath10k wifi integrated store the
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mac-address in nvmem partitions. Try to fetch the mac-address using the
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standard 'of_get_mac_address' than in all the check also try to fetch the
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address using the nvmem api searching for a defined 'mac-address' cell.
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Mac-address defined in the dts have priority than any other address found.
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Tested-on: QCA9984 hw1.0 PCI 10.4
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Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
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---
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drivers/net/wireless/ath/ath10k/core.c | 10 ++++++++++
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1 file changed, 10 insertions(+)
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--- a/drivers/net/wireless/ath/ath10k/core.c
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+++ b/drivers/net/wireless/ath/ath10k/core.c
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@@ -8,6 +8,7 @@
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#include <linux/module.h>
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#include <linux/firmware.h>
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#include <linux/of.h>
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+#include <linux/of_net.h>
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#include <linux/property.h>
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#include <linux/dmi.h>
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#include <linux/ctype.h>
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@@ -3331,6 +3332,8 @@ static int ath10k_core_probe_fw(struct a
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device_get_mac_address(ar->dev, ar->mac_addr, sizeof(ar->mac_addr));
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+ of_get_mac_address(ar->dev->of_node, ar->mac_addr);
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+
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ret = ath10k_core_init_firmware_features(ar);
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if (ret) {
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ath10k_err(ar, "fatal problem with firmware features: %d\n",
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