1756869a54
This allows e.g. BCM43602 to work out of box, without dumping a proper MTD partition to /lib/firmware/ NVRAM file. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> SVN-Revision: 45931
80 lines
2.2 KiB
Diff
80 lines
2.2 KiB
Diff
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
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Date: Mon, 8 Jun 2015 16:59:31 +0200
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Subject: [PATCH] brcmfmac: use bcm47xx platform NVRAM as fallback
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
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---
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--- a/drivers/net/wireless/brcm80211/brcmfmac/firmware.c
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+++ b/drivers/net/wireless/brcm80211/brcmfmac/firmware.c
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@@ -19,6 +19,9 @@
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#include <linux/device.h>
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#include <linux/firmware.h>
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#include <linux/module.h>
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+#if IS_ENABLED(CONFIG_BCM47XX_NVRAM)
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+#include <linux/bcm47xx_nvram.h>
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+#endif
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#include "debug.h"
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#include "firmware.h"
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@@ -424,17 +427,42 @@ struct brcmf_fw {
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static void brcmf_fw_request_nvram_done(const struct firmware *fw, void *ctx)
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{
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struct brcmf_fw *fwctx = ctx;
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+#if IS_ENABLED(CONFIG_BCM47XX_NVRAM)
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+ const u8 *bcm47xx_nvram = NULL;
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+ size_t bcm47xx_nvram_len;
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+#endif
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+ const u8 *data = NULL;
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+ size_t data_len;
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u32 nvram_length = 0;
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void *nvram = NULL;
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brcmf_dbg(TRACE, "enter: dev=%s\n", dev_name(fwctx->dev));
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- if (!fw && !(fwctx->flags & BRCMF_FW_REQ_NV_OPTIONAL))
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+ if (fw) {
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+ data = fw->data;
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+ data_len = fw->size;
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+ }
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+#if IS_ENABLED(CONFIG_BCM47XX_NVRAM)
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+ else {
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+ bcm47xx_nvram = bcm47xx_nvram_get_contents(&bcm47xx_nvram_len);
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+ if (bcm47xx_nvram) {
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+ data = bcm47xx_nvram;
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+ data_len = bcm47xx_nvram_len;
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+ brcmf_err("Found platform NVRAM (%zu B)\n", data_len);
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+ }
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+ }
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+#endif
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+ if (!data && !(fwctx->flags & BRCMF_FW_REQ_NV_OPTIONAL))
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goto fail;
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- if (fw) {
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- nvram = brcmf_fw_nvram_strip(fw->data, fw->size, &nvram_length,
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+ if (data) {
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+ nvram = brcmf_fw_nvram_strip(data, data_len, &nvram_length,
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fwctx->domain_nr, fwctx->bus_nr);
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- release_firmware(fw);
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+ if (fw)
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+ release_firmware(fw);
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+#if IS_ENABLED(CONFIG_BCM47XX_NVRAM)
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+ if (bcm47xx_nvram)
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+ bcm47xx_nvram_release_contents(bcm47xx_nvram);
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+#endif
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if (!nvram && !(fwctx->flags & BRCMF_FW_REQ_NV_OPTIONAL))
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goto fail;
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}
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--- a/drivers/net/wireless/brcm80211/brcmfmac/debug.h
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+++ b/drivers/net/wireless/brcm80211/brcmfmac/debug.h
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@@ -17,6 +17,8 @@
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#ifndef BRCMFMAC_DEBUG_H
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#define BRCMFMAC_DEBUG_H
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+#include <linux/net.h>
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+
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/* message levels */
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#define BRCMF_TRACE_VAL 0x00000002
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#define BRCMF_INFO_VAL 0x00000004
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