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From: Hector Martin <marcan@marcan.st>
To: Kalle Valo <kvalo@codeaurora.org>,
	"David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	Rob Herring <robh+dt@kernel.org>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	Len Brown <lenb@kernel.org>, Arend van Spriel <aspriel@gmail.com>,
	Franky Lin <franky.lin@broadcom.com>,
	Hante Meuleman <hante.meuleman@broadcom.com>,
	Chi-hsien Lin <chi-hsien.lin@infineon.com>,
	Wright Feng <wright.feng@infineon.com>,
	Chung-hsien Hsu <chung-hsien.hsu@infineon.com>
Cc: "Hector Martin" <marcan@marcan.st>,
	"Sven Peter" <sven@svenpeter.dev>,
	"Alyssa Rosenzweig" <alyssa@rosenzweig.io>,
	"Mark Kettenis" <kettenis@openbsd.org>,
	"Rafał Miłecki" <zajec5@gmail.com>,
	"Pieter-Paul Giesberts" <pieter-paul.giesberts@broadcom.com>,
	"Linus Walleij" <linus.walleij@linaro.org>,
	"Hans de Goede" <hdegoede@redhat.com>,
	"John W. Linville" <linville@tuxdriver.com>,
	"Daniel (Deognyoun) Kim" <dekim@broadcom.com>,
	"brian m. carlson" <sandals@crustytoothpaste.net>,
	linux-wireless@vger.kernel.org, netdev@vger.kernel.org,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-acpi@vger.kernel.org, brcm80211-dev-list.pdl@broadcom.com,
	SHA-cyfmac-dev-list@infineon.com
Subject: [PATCH 34/34] brcmfmac: common: Add support for external calibration blobs
Date: Mon, 27 Dec 2021 00:36:24 +0900	[thread overview]
Message-ID: <20211226153624.162281-35-marcan@marcan.st> (raw)
In-Reply-To: <20211226153624.162281-1-marcan@marcan.st>

The calibration blob for a chip is normally stored in SROM and loaded
internally by the firmware. However, Apple ARM64 platforms instead store
it as part of platform configuration data, and provide it via the Apple
Device Tree. We forward this into the Linux DT in the bootloader.

Add support for taking this blob from the DT and loading it into the
dongle. The loading mechanism is the same as used for the CLM and TxCap
blobs.

Signed-off-by: Hector Martin <marcan@marcan.st>
---
 .../broadcom/brcm80211/brcmfmac/common.c      | 24 +++++++++++++++++++
 .../broadcom/brcm80211/brcmfmac/common.h      |  2 ++
 .../wireless/broadcom/brcm80211/brcmfmac/of.c |  8 +++++++
 3 files changed, 34 insertions(+)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
index d65308c3f070..ad36e6b5dd47 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
@@ -218,6 +218,23 @@ static int brcmf_c_process_txcap_blob(struct brcmf_if *ifp)
 	return err;
 }
 
+static int brcmf_c_process_cal_blob(struct brcmf_if *ifp)
+{
+	struct brcmf_pub *drvr = ifp->drvr;
+	struct brcmf_mp_device *settings = drvr->settings;
+	s32 err;
+
+	brcmf_dbg(TRACE, "Enter\n");
+
+	if (!settings->cal_blob || !settings->cal_size)
+		return 0;
+
+	brcmf_info("Calibration blob provided by platform, loading\n");
+	err = brcmf_c_download_blob(ifp, settings->cal_blob, settings->cal_size,
+				    "calload", "calload_status");
+	return err;
+}
+
 int brcmf_c_preinit_dcmds(struct brcmf_if *ifp)
 {
 	struct brcmf_pub *drvr = ifp->drvr;
@@ -291,6 +308,13 @@ int brcmf_c_preinit_dcmds(struct brcmf_if *ifp)
 		goto done;
 	}
 
+	/* Download external calibration blob, if available */
+	err = brcmf_c_process_cal_blob(ifp);
+	if (err < 0) {
+		bphy_err(drvr, "download calibration blob file failed, %d\n", err);
+		goto done;
+	}
+
 	/* query for 'ver' to get version info from firmware */
 	memset(buf, 0, sizeof(buf));
 	err = brcmf_fil_iovar_data_get(ifp, "ver", buf, sizeof(buf));
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h
index a88c4a9310f3..f321346edd01 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h
@@ -51,6 +51,8 @@ struct brcmf_mp_device {
 	struct brcmfmac_pd_cc *country_codes;
 	const char	*board_type;
 	const char	*antenna_sku;
+	void		*cal_blob;
+	int		cal_size;
 	union {
 		struct brcmfmac_sdio_pd sdio;
 	} bus;
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c
index 453a6cda5abb..2f40d70fdbf1 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c
@@ -85,6 +85,14 @@ void brcmf_of_probe(struct device *dev, enum brcmf_bus_type bus_type,
 	if (!of_property_read_string(np, "apple,antenna-sku", &prop))
 		settings->antenna_sku = devm_kstrdup(dev, prop, GFP_KERNEL);
 
+	/* The WLAN calibration blob is normally stored in SROM, but Apple
+	 * ARM64 platforms pass it via the DT instead.
+	 */
+	prop = of_get_property(np, "brcm,cal-blob", &settings->cal_size);
+	if (prop && settings->cal_size)
+		settings->cal_blob = devm_kmemdup(dev, prop, settings->cal_size,
+						  GFP_KERNEL);
+
 	/* Set board-type to the first string of the machine compatible prop */
 	root = of_find_node_by_path("/");
 	if (root && !settings->board_type) {
-- 
2.33.0


  parent reply	other threads:[~2021-12-26 15:41 UTC|newest]

Thread overview: 105+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-26 15:35 [RFC PATCH 00/34] brcmfmac: Support Apple T2 and M1 platforms Hector Martin
2021-12-26 15:35 ` [PATCH 01/34] dt-bindings: net: bcm4329-fmac: Add Apple properties & chips Hector Martin
2021-12-26 21:02   ` Linus Walleij
2021-12-26 23:34   ` Rob Herring
2021-12-27 16:36   ` Rob Herring
2021-12-27 17:23     ` Hector Martin
2021-12-29 16:38       ` Mark Kettenis
2022-01-02 14:12         ` Hector Martin
2021-12-29 16:42   ` Mark Kettenis
2022-01-04  5:47     ` Hector Martin
2021-12-26 15:35 ` [PATCH 02/34] brcmfmac: pcie: Declare missing firmware files in pcie.c Hector Martin
2021-12-26 21:04   ` Linus Walleij
2021-12-26 15:35 ` [PATCH 03/34] brcmfmac: firmware: Support having multiple alt paths Hector Martin
2022-01-02  5:31   ` Linus Walleij
2022-01-02  7:10     ` Dmitry Osipenko
2022-01-02  6:38   ` Dmitry Osipenko
2022-01-02  6:45   ` Dmitry Osipenko
2022-01-02 14:18     ` Hector Martin
2022-01-02 20:11       ` Dmitry Osipenko
2022-01-03  0:41         ` Hector Martin
2022-01-03  1:26           ` Dmitry Osipenko
2022-01-03  6:17             ` Hector Martin
2022-01-02  6:55   ` Dmitry Osipenko
2022-01-03  6:18     ` Hector Martin
2022-01-02  7:08   ` Dmitry Osipenko
2022-01-02  7:20     ` Dmitry Osipenko
2022-01-02 14:25     ` Hector Martin
2022-01-02 20:12       ` Dmitry Osipenko
2021-12-26 15:35 ` [PATCH 04/34] brcmfmac: firmware: Handle per-board clm_blob files Hector Martin
2022-01-02  6:21   ` Linus Walleij
2021-12-26 15:35 ` [PATCH 05/34] brcmfmac: pcie/sdio/usb: Get CLM blob via standard firmware mechanism Hector Martin
2022-01-02  6:22   ` Linus Walleij
2021-12-26 15:35 ` [PATCH 06/34] brcmfmac: firmware: Support passing in multiple board_types Hector Martin
2022-01-02  5:34   ` Linus Walleij
2021-12-26 15:35 ` [PATCH 07/34] brcmfmac: pcie: Read Apple OTP information Hector Martin
2022-01-02  5:38   ` Linus Walleij
2022-01-03  5:51     ` Hector Martin
2022-01-03 11:13       ` Linus Walleij
2021-12-26 15:35 ` [PATCH 08/34] brcmfmac: of: Fetch Apple properties Hector Martin
2022-01-02  5:40   ` Linus Walleij
2021-12-26 15:35 ` [PATCH 09/34] brcmfmac: pcie: Perform firmware selection for Apple platforms Hector Martin
2022-01-02  5:44   ` Linus Walleij
2021-12-26 15:36 ` [PATCH 10/34] brcmfmac: firmware: Allow platform to override macaddr Hector Martin
2022-01-02  5:50   ` Linus Walleij
2022-01-03  5:42     ` Hector Martin
2021-12-26 15:36 ` [PATCH 11/34] brcmfmac: msgbuf: Increase RX ring sizes to 1024 Hector Martin
2022-01-02  5:50   ` Linus Walleij
2021-12-26 15:36 ` [PATCH 12/34] brcmfmac: pcie: Fix crashes due to early IRQs Hector Martin
2022-01-02  5:51   ` Linus Walleij
2021-12-26 15:36 ` [PATCH 13/34] brcmfmac: pcie: Support PCIe core revisions >= 64 Hector Martin
2022-01-02  5:53   ` Linus Walleij
2021-12-26 15:36 ` [PATCH 14/34] brcmfmac: pcie: Add IDs/properties for BCM4378 Hector Martin
2022-01-02  5:53   ` Linus Walleij
2021-12-26 15:36 ` [PATCH 15/34] ACPI / property: Support strings in Apple _DSM props Hector Martin
2021-12-26 18:20   ` Lukas Wunner
2022-01-02  6:20   ` Linus Walleij
2021-12-26 15:36 ` [PATCH 16/34] brcmfmac: acpi: Add support for fetching Apple ACPI properties Hector Martin
2022-01-02  5:58   ` Linus Walleij
2022-01-03  6:03     ` Hector Martin
2022-01-03 11:14       ` Linus Walleij
     [not found]   ` <CAHp75VcZcJ+zCDL-J+w8gEeKXGYdJajjLoa1JTj_kkJixrV12Q@mail.gmail.com>
2022-01-03 17:22     ` Hector Martin
     [not found]       ` <CAHp75Vedgs_zTH2O120jtUuQiuseA0VN62TJiJ7kAi1f5nDQ6Q@mail.gmail.com>
2022-01-04  5:22         ` Hector Martin
2022-01-10  9:59     ` Kalle Valo
2021-12-26 15:36 ` [PATCH 17/34] brcmfmac: pcie: Provide a buffer of random bytes to the device Hector Martin
2022-01-02  5:59   ` Linus Walleij
2021-12-26 15:36 ` [PATCH 18/34] brcmfmac: pcie: Add IDs/properties for BCM4355 Hector Martin
2022-01-02  6:00   ` Linus Walleij
2021-12-26 15:36 ` [PATCH 19/34] brcmfmac: pcie: Add IDs/properties for BCM4377 Hector Martin
2022-01-02  6:01   ` Linus Walleij
2021-12-26 15:36 ` [PATCH 20/34] brcmfmac: pcie: Perform correct BCM4364 firmware selection Hector Martin
2022-01-02  6:02   ` Linus Walleij
2021-12-26 15:36 ` [PATCH 21/34] brcmfmac: chip: Only disable D11 cores; handle an arbitrary number Hector Martin
2022-01-02  6:03   ` Linus Walleij
2021-12-26 15:36 ` [PATCH 22/34] brcmfmac: chip: Handle 1024-unit sizes for TCM blocks Hector Martin
2022-01-02  6:09   ` Linus Walleij
2021-12-26 15:36 ` [PATCH 23/34] brcmfmac: cfg80211: Add support for scan params v2 Hector Martin
2022-01-02  6:23   ` Linus Walleij
2021-12-26 15:36 ` [PATCH 24/34] brcmfmac: feature: Add support for setting feats based on WLC version Hector Martin
2022-01-02  6:11   ` Linus Walleij
2021-12-26 15:36 ` [PATCH 25/34] brcmfmac: cfg80211: Add support for PMKID_V3 operations Hector Martin
2022-01-02  6:12   ` Linus Walleij
2021-12-26 15:36 ` [PATCH 26/34] brcmfmac: cfg80211: Pass the PMK in binary instead of hex Hector Martin
2022-01-02  6:13   ` Linus Walleij
2021-12-26 15:36 ` [PATCH 27/34] brcmfmac: pcie: Add IDs/properties for BCM4387 Hector Martin
2022-01-02  6:13   ` Linus Walleij
2021-12-26 15:36 ` [PATCH 28/34] brcmfmac: pcie: Replace brcmf_pcie_copy_mem_todev with memcpy_toio Hector Martin
2022-01-02  6:15   ` Linus Walleij
2021-12-26 15:36 ` [PATCH 29/34] brcmfmac: pcie: Read the console on init and shutdown Hector Martin
2022-01-02  6:16   ` Linus Walleij
2021-12-26 15:36 ` [PATCH 30/34] brcmfmac: pcie: Release firmwares in the brcmf_pcie_setup error path Hector Martin
2022-01-02  6:16   ` Linus Walleij
2021-12-26 15:36 ` [PATCH 31/34] brcmfmac: fwil: Constify iovar name arguments Hector Martin
2022-01-02  6:17   ` Linus Walleij
2021-12-26 15:36 ` [PATCH 32/34] brcmfmac: common: Add support for downloading TxCap blobs Hector Martin
2022-01-02  6:18   ` Linus Walleij
2021-12-26 15:36 ` [PATCH 33/34] brcmfmac: pcie: Load and provide " Hector Martin
2022-01-02  6:19   ` Linus Walleij
2021-12-26 15:36 ` Hector Martin [this message]
2022-01-02  6:19   ` [PATCH 34/34] brcmfmac: common: Add support for external calibration blobs Linus Walleij
2021-12-26 19:17 ` [RFC PATCH 00/34] brcmfmac: Support Apple T2 and M1 platforms Lukas Wunner
2021-12-26 21:42   ` Hans de Goede
2021-12-27 11:53     ` Hector Martin
2022-01-02  6:25 ` Linus Walleij
2022-01-03  6:27   ` Hector Martin
2022-01-03 10:20     ` Arend van Spriel

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