From patchwork Tue Mar 24 18:28:09 2020
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
X-Patchwork-Id: 11456187
Return-Path:
<SRS0=7UWt=5J=lists.infradead.org=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@kernel.org>
Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org
[172.30.200.123])
by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 884BD1667
for <patchwork-linux-arm@patchwork.kernel.org>;
Tue, 24 Mar 2020 18:29:06 +0000 (UTC)
Received: from bombadil.infradead.org (bombadil.infradead.org
[198.137.202.133])
(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
(No client certificate requested)
by mail.kernel.org (Postfix) with ESMTPS id 64FF0206F6
for <patchwork-linux-arm@patchwork.kernel.org>;
Tue, 24 Mar 2020 18:29:06 +0000 (UTC)
Authentication-Results: mail.kernel.org;
dkim=pass (2048-bit key) header.d=lists.infradead.org
header.i=@lists.infradead.org header.b="G3ed3Qzw"
DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 64FF0206F6
Authentication-Results: mail.kernel.org;
dmarc=none (p=none dis=none) header.from=suse.de
Authentication-Results: mail.kernel.org;
spf=none
smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;
d=lists.infradead.org; s=bombadil.20170209; h=Sender:
Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post:
List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:
Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description:
Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:
List-Owner; bh=ZW8pFtwlUj3q7GZJotB4Rgjtfp9gMy+l74jJQcTab0w=; b=G3ed3QzwnvX3MD
lHn7XDGcdKtGCuuX/Xhmoz/5j7Rgw1hOz3+8tGJaH+BigLM7Kfms9kB2c3chHrDwTH5SW0LzlU8el
hxpbcJnVFy3VLdCMUrvQUXY0SmOcoSSN3NK032HxlqAKSa5HPE3dTBWheiUGKlZ6c3A9dGItYzD6I
M4WO+9b0wHM1KMMrsyVo51ysdAFEXtSym1xNN+pW/tE9ak+/bFHxMW1XcMNrVwo9R43U5JSvmcC0M
OKBYNAYFpFWx3n3wvAaFQkBEkmH3QmPBd0aiE8UTGk6CY0VHwjbVcE7u7daksOPLrZgsRgqmLRatE
98WbgEKpzDu7mgvLn5zw==;
Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org)
by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux))
id 1jGoIP-0002bD-LX; Tue, 24 Mar 2020 18:29:01 +0000
Received: from mx2.suse.de ([195.135.220.15])
by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux))
id 1jGoHq-00024O-PS; Tue, 24 Mar 2020 18:28:29 +0000
X-Virus-Scanned: by amavisd-new at test-mx.suse.de
Received: from relay2.suse.de (unknown [195.135.220.254])
by mx2.suse.de (Postfix) with ESMTP id 4A537ABD1;
Tue, 24 Mar 2020 18:28:22 +0000 (UTC)
From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
To: linux-kernel@vger.kernel.org, Florian Fainelli <f.fainelli@gmail.com>,
Ray Jui <rjui@broadcom.com>, Scott Branden <sbranden@broadcom.com>,
bcm-kernel-feedback-list@broadcom.com,
Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Subject: [PATCH v6 1/4] soc: bcm2835: Sync xHCI reset firmware property with
downstream
Date: Tue, 24 Mar 2020 19:28:09 +0100
Message-Id: <20200324182812.20420-2-nsaenzjulienne@suse.de>
X-Mailer: git-send-email 2.25.1
In-Reply-To: <20200324182812.20420-1-nsaenzjulienne@suse.de>
References: <20200324182812.20420-1-nsaenzjulienne@suse.de>
MIME-Version: 1.0
X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3
X-CRM114-CacheID: sfid-20200324_112826_965603_11D899C2
X-CRM114-Status: GOOD ( 13.71 )
X-Spam-Score: -2.3 (--)
X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary:
Content analysis details: (-2.3 points)
pts rule name description
---- ----------------------
--------------------------------------------------
0.0 RCVD_IN_MSPIKE_H3 RBL: Good reputation (+3)
[195.135.220.15 listed in wl.mailspike.net]
-2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/,
medium trust [195.135.220.15 listed in list.dnswl.org]
-0.0 SPF_PASS SPF: sender matches SPF record
0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record
0.0 RCVD_IN_MSPIKE_WL Mailspike good senders
X-BeenThere: linux-arm-kernel@lists.infradead.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: <linux-arm-kernel.lists.infradead.org>
List-Unsubscribe:
<http://lists.infradead.org/mailman/options/linux-arm-kernel>,
<mailto:linux-arm-kernel-request@lists.infradead.org?subject=unsubscribe>
List-Archive: <http://lists.infradead.org/pipermail/linux-arm-kernel/>
List-Post: <mailto:linux-arm-kernel@lists.infradead.org>
List-Help: <mailto:linux-arm-kernel-request@lists.infradead.org?subject=help>
List-Subscribe:
<http://lists.infradead.org/mailman/listinfo/linux-arm-kernel>,
<mailto:linux-arm-kernel-request@lists.infradead.org?subject=subscribe>
Cc: tim.gover@raspberrypi.org, sergei.shtylyov@cogentembedded.com,
gregkh@linuxfoundation.org, linux-usb@vger.kernel.org,
linux-rpi-kernel@lists.infradead.org, linux-pci@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, wahrenst@gmx.net
Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org>
Errors-To:
linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org
The property is needed in order to trigger VL805's firmware load. Note
that there is a gap between the property introduced and the previous
one. This is also the case downstream.
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
---
include/soc/bcm2835/raspberrypi-firmware.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/soc/bcm2835/raspberrypi-firmware.h b/include/soc/bcm2835/raspberrypi-firmware.h
index 7800e12ee042..cc9cdbc66403 100644
--- a/include/soc/bcm2835/raspberrypi-firmware.h
+++ b/include/soc/bcm2835/raspberrypi-firmware.h
@@ -90,7 +90,7 @@ enum rpi_firmware_property_tag {
RPI_FIRMWARE_SET_PERIPH_REG = 0x00038045,
RPI_FIRMWARE_GET_POE_HAT_VAL = 0x00030049,
RPI_FIRMWARE_SET_POE_HAT_VAL = 0x00030050,
-
+ RPI_FIRMWARE_NOTIFY_XHCI_RESET = 0x00030058,
/* Dispmanx TAGS */
RPI_FIRMWARE_FRAMEBUFFER_ALLOCATE = 0x00040001,
From patchwork Tue Mar 24 18:28:10 2020
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
X-Patchwork-Id: 11456191
Return-Path:
<SRS0=7UWt=5J=lists.infradead.org=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@kernel.org>
Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org
[172.30.200.123])
by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C4D571731
for <patchwork-linux-arm@patchwork.kernel.org>;
Tue, 24 Mar 2020 18:29:30 +0000 (UTC)
Received: from bombadil.infradead.org (bombadil.infradead.org
[198.137.202.133])
(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
(No client certificate requested)
by mail.kernel.org (Postfix) with ESMTPS id 9A787206F6
for <patchwork-linux-arm@patchwork.kernel.org>;
Tue, 24 Mar 2020 18:29:30 +0000 (UTC)
Authentication-Results: mail.kernel.org;
dkim=pass (2048-bit key) header.d=lists.infradead.org
header.i=@lists.infradead.org header.b="Z5B/3JRW"
DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9A787206F6
Authentication-Results: mail.kernel.org;
dmarc=none (p=none dis=none) header.from=suse.de
Authentication-Results: mail.kernel.org;
spf=none
smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;
d=lists.infradead.org; s=bombadil.20170209; h=Sender:
Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post:
List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:
Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description:
Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:
List-Owner; bh=kAIknZ2RVw6gB9CaOcG4KQjgkdNyrtcLcfH5XAGtITo=; b=Z5B/3JRWWCVYHI
AsxnYFEFit0NnrRvZDbi0ktp8wUbVrztmKRPQWvfaWSlelJEKdEpJhHItnpicKfR5JhfHFsPt3V3X
i29DtdYSOr/cjW/qeoakzXY0b1ApjrrK3MWjX/k0k9SVqGwkq6KT3T3qok969KInPAe0ERZ9bYkP1
P2Jj1QT0QtCfcd0PsSjn4riMP09KNZVuviLm2bcg3Cr78qfIq6gDHHoS1nqPzdEt4gG+i/s66lTFY
Dd3vPgItuRBvzgAjWdT4Bvx41u82KONuYDshYftzUZX7pxh76o4PwtPoPt/A4hJT0pZZe9MB6pQlM
JwbBVC2fhM1afv00diOw==;
Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org)
by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux))
id 1jGoIm-00032a-5v; Tue, 24 Mar 2020 18:29:24 +0000
Received: from mx2.suse.de ([195.135.220.15])
by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux))
id 1jGoHq-00024W-PL; Tue, 24 Mar 2020 18:28:29 +0000
X-Virus-Scanned: by amavisd-new at test-mx.suse.de
Received: from relay2.suse.de (unknown [195.135.220.254])
by mx2.suse.de (Postfix) with ESMTP id 3F0CFABE7;
Tue, 24 Mar 2020 18:28:23 +0000 (UTC)
From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
To: linux-kernel@vger.kernel.org,
Nicolas Saenz Julienne <nsaenzjulienne@suse.de>,
Florian Fainelli <f.fainelli@gmail.com>, Ray Jui <rjui@broadcom.com>,
Scott Branden <sbranden@broadcom.com>,
bcm-kernel-feedback-list@broadcom.com
Subject: [PATCH v6 2/4] firmware: raspberrypi: Introduce vl805 init routine
Date: Tue, 24 Mar 2020 19:28:10 +0100
Message-Id: <20200324182812.20420-3-nsaenzjulienne@suse.de>
X-Mailer: git-send-email 2.25.1
In-Reply-To: <20200324182812.20420-1-nsaenzjulienne@suse.de>
References: <20200324182812.20420-1-nsaenzjulienne@suse.de>
MIME-Version: 1.0
X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3
X-CRM114-CacheID: sfid-20200324_112827_110873_06144E1C
X-CRM114-Status: GOOD ( 15.67 )
X-Spam-Score: -2.3 (--)
X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary:
Content analysis details: (-2.3 points)
pts rule name description
---- ----------------------
--------------------------------------------------
0.0 RCVD_IN_MSPIKE_H3 RBL: Good reputation (+3)
[195.135.220.15 listed in wl.mailspike.net]
-2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/,
medium trust [195.135.220.15 listed in list.dnswl.org]
-0.0 SPF_PASS SPF: sender matches SPF record
0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record
0.0 RCVD_IN_MSPIKE_WL Mailspike good senders
X-BeenThere: linux-arm-kernel@lists.infradead.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: <linux-arm-kernel.lists.infradead.org>
List-Unsubscribe:
<http://lists.infradead.org/mailman/options/linux-arm-kernel>,
<mailto:linux-arm-kernel-request@lists.infradead.org?subject=unsubscribe>
List-Archive: <http://lists.infradead.org/pipermail/linux-arm-kernel/>
List-Post: <mailto:linux-arm-kernel@lists.infradead.org>
List-Help: <mailto:linux-arm-kernel-request@lists.infradead.org?subject=help>
List-Subscribe:
<http://lists.infradead.org/mailman/listinfo/linux-arm-kernel>,
<mailto:linux-arm-kernel-request@lists.infradead.org?subject=subscribe>
Cc: tim.gover@raspberrypi.org, sergei.shtylyov@cogentembedded.com,
gregkh@linuxfoundation.org, linux-usb@vger.kernel.org,
linux-rpi-kernel@lists.infradead.org, linux-pci@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, wahrenst@gmx.net
Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org>
Errors-To:
linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org
On the Raspberry Pi 4, after a PCI reset, VL805's firmware may either be
loaded directly from an EEPROM or, if not present, by the SoC's
VideCore. The function informs VideCore that VL805 was just reset, or
requests for a probe defer.
Based on Tim Gover's downstream implementation.
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
---
Changes since v4:
- Inline function definition when RASPBERRYPI_FIRMWARE is not defined
Changes since v1:
- Move include into .c file and add forward declaration to .h
drivers/firmware/raspberrypi.c | 38 ++++++++++++++++++++++
include/soc/bcm2835/raspberrypi-firmware.h | 7 ++++
2 files changed, 45 insertions(+)
diff --git a/drivers/firmware/raspberrypi.c b/drivers/firmware/raspberrypi.c
index da26a584dca0..cbb495aff6a0 100644
--- a/drivers/firmware/raspberrypi.c
+++ b/drivers/firmware/raspberrypi.c
@@ -12,6 +12,7 @@
#include <linux/of_platform.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
+#include <linux/pci.h>
#include <soc/bcm2835/raspberrypi-firmware.h>
#define MBOX_MSG(chan, data28) (((data28) & ~0xf) | ((chan) & 0xf))
@@ -286,6 +287,43 @@ struct rpi_firmware *rpi_firmware_get(struct device_node *firmware_node)
}
EXPORT_SYMBOL_GPL(rpi_firmware_get);
+/*
+ * On the Raspberry Pi 4, after a PCI reset, VL805's firmware may either be
+ * loaded directly from an EEPROM or, if not present, by the SoC's VideCore.
+ * Inform VideCore that VL805 was just reset, or defer xhci's probe if not yet
+ * joinable trough the mailbox interface.
+ */
+int rpi_firmware_init_vl805(struct pci_dev *pdev)
+{
+ struct device_node *fw_np;
+ struct rpi_firmware *fw;
+ u32 dev_addr;
+ int ret;
+
+ fw_np = of_find_compatible_node(NULL, NULL,
+ "raspberrypi,bcm2835-firmware");
+ if (!fw_np)
+ return 0;
+
+ fw = rpi_firmware_get(fw_np);
+ of_node_put(fw_np);
+ if (!fw)
+ return -EPROBE_DEFER;
+
+ dev_addr = pdev->bus->number << 20 | PCI_SLOT(pdev->devfn) << 15 |
+ PCI_FUNC(pdev->devfn) << 12;
+
+ ret = rpi_firmware_property(fw, RPI_FIRMWARE_NOTIFY_XHCI_RESET,
+ &dev_addr, sizeof(dev_addr));
+ if (ret)
+ return ret;
+
+ dev_dbg(&pdev->dev, "loaded Raspberry Pi's VL805 firmware\n");
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(rpi_firmware_init_vl805);
+
static const struct of_device_id rpi_firmware_of_match[] = {
{ .compatible = "raspberrypi,bcm2835-firmware", },
{},
diff --git a/include/soc/bcm2835/raspberrypi-firmware.h b/include/soc/bcm2835/raspberrypi-firmware.h
index cc9cdbc66403..3025aca3c358 100644
--- a/include/soc/bcm2835/raspberrypi-firmware.h
+++ b/include/soc/bcm2835/raspberrypi-firmware.h
@@ -10,6 +10,7 @@
#include <linux/of_device.h>
struct rpi_firmware;
+struct pci_dev;
enum rpi_firmware_property_status {
RPI_FIRMWARE_STATUS_REQUEST = 0,
@@ -141,6 +142,7 @@ int rpi_firmware_property(struct rpi_firmware *fw,
int rpi_firmware_property_list(struct rpi_firmware *fw,
void *data, size_t tag_size);
struct rpi_firmware *rpi_firmware_get(struct device_node *firmware_node);
+int rpi_firmware_init_vl805(struct pci_dev *pdev);
#else
static inline int rpi_firmware_property(struct rpi_firmware *fw, u32 tag,
void *data, size_t len)
@@ -158,6 +160,11 @@ static inline struct rpi_firmware *rpi_firmware_get(struct device_node *firmware
{
return NULL;
}
+
+static inline int rpi_firmware_init_vl805(struct pci_dev *pdev)
+{
+ return 0;
+}
#endif
#endif /* __SOC_RASPBERRY_FIRMWARE_H__ */
From patchwork Tue Mar 24 18:28:11 2020
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
X-Patchwork-Id: 11456189
Return-Path:
<SRS0=7UWt=5J=lists.infradead.org=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@kernel.org>
Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org
[172.30.200.123])
by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 168CB1667
for <patchwork-linux-arm@patchwork.kernel.org>;
Tue, 24 Mar 2020 18:29:15 +0000 (UTC)
Received: from bombadil.infradead.org (bombadil.infradead.org
[198.137.202.133])
(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
(No client certificate requested)
by mail.kernel.org (Postfix) with ESMTPS id EAB942076E
for <patchwork-linux-arm@patchwork.kernel.org>;
Tue, 24 Mar 2020 18:29:14 +0000 (UTC)
Authentication-Results: mail.kernel.org;
dkim=pass (2048-bit key) header.d=lists.infradead.org
header.i=@lists.infradead.org header.b="BOwwgdOE"
DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EAB942076E
Authentication-Results: mail.kernel.org;
dmarc=none (p=none dis=none) header.from=suse.de
Authentication-Results: mail.kernel.org;
spf=none
smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;
d=lists.infradead.org; s=bombadil.20170209; h=Sender:
Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post:
List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:
Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description:
Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:
List-Owner; bh=CLmK04T+baw5jWu/lH2cJ3fygso/fqFgoMOSigkpvRw=; b=BOwwgdOEAmbVoa
/8AtILxDfcKBVhbig0LKPFd94roUQzY/SylcBG5jWceT90PE3BxYgomfaBA6U41LW9Xe5LZsfylId
/IP3RNq34yRDWPXo3WWkLFYEtwJB60SWZlD8BG+ApGeUJ9z6vXTL9h3K9ThLwhFycZOkSxtDMicCG
vkP4ErkYnvASxQ021+lq/VxFgdnvtKcw2OE+ghhRHgOn8dc+/dJHCp8vi33Qrk9DFhKSGnSX/A5vz
E84/rlt964N9kXLE2npw9hNrj6DdrQozcB9YTAEL9S/krTUmOLI/iWS/DZEUA50xy9wVBqD9Bm78x
TS0oeyfH49HaUmd10Y6w==;
Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org)
by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux))
id 1jGoIa-0002oW-NS; Tue, 24 Mar 2020 18:29:12 +0000
Received: from mx2.suse.de ([195.135.220.15])
by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux))
id 1jGoHr-00024Z-2w; Tue, 24 Mar 2020 18:28:29 +0000
X-Virus-Scanned: by amavisd-new at test-mx.suse.de
Received: from relay2.suse.de (unknown [195.135.220.254])
by mx2.suse.de (Postfix) with ESMTP id 1A1A0ABF4;
Tue, 24 Mar 2020 18:28:24 +0000 (UTC)
From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
To: linux-kernel@vger.kernel.org,
Nicolas Saenz Julienne <nsaenzjulienne@suse.de>,
Florian Fainelli <f.fainelli@gmail.com>,
bcm-kernel-feedback-list@broadcom.com,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Andrew Murray <amurray@thegoodpenguin.co.uk>
Subject: [PATCH v6 3/4] PCI: brcmstb: Wait for Raspberry Pi's firmware when
present
Date: Tue, 24 Mar 2020 19:28:11 +0100
Message-Id: <20200324182812.20420-4-nsaenzjulienne@suse.de>
X-Mailer: git-send-email 2.25.1
In-Reply-To: <20200324182812.20420-1-nsaenzjulienne@suse.de>
References: <20200324182812.20420-1-nsaenzjulienne@suse.de>
MIME-Version: 1.0
X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3
X-CRM114-CacheID: sfid-20200324_112827_267470_0540B982
X-CRM114-Status: GOOD ( 12.13 )
X-Spam-Score: -2.3 (--)
X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary:
Content analysis details: (-2.3 points)
pts rule name description
---- ----------------------
--------------------------------------------------
0.0 RCVD_IN_MSPIKE_H3 RBL: Good reputation (+3)
[195.135.220.15 listed in wl.mailspike.net]
-2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/,
medium trust [195.135.220.15 listed in list.dnswl.org]
-0.0 SPF_PASS SPF: sender matches SPF record
0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record
0.0 RCVD_IN_MSPIKE_WL Mailspike good senders
X-BeenThere: linux-arm-kernel@lists.infradead.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: <linux-arm-kernel.lists.infradead.org>
List-Unsubscribe:
<http://lists.infradead.org/mailman/options/linux-arm-kernel>,
<mailto:linux-arm-kernel-request@lists.infradead.org?subject=unsubscribe>
List-Archive: <http://lists.infradead.org/pipermail/linux-arm-kernel/>
List-Post: <mailto:linux-arm-kernel@lists.infradead.org>
List-Help: <mailto:linux-arm-kernel-request@lists.infradead.org?subject=help>
List-Subscribe:
<http://lists.infradead.org/mailman/listinfo/linux-arm-kernel>,
<mailto:linux-arm-kernel-request@lists.infradead.org?subject=subscribe>
Cc: tim.gover@raspberrypi.org, sergei.shtylyov@cogentembedded.com,
gregkh@linuxfoundation.org, linux-usb@vger.kernel.org,
linux-rpi-kernel@lists.infradead.org, linux-pci@vger.kernel.org,
Bjorn Helgaas <bhelgaas@google.com>, linux-arm-kernel@lists.infradead.org,
wahrenst@gmx.net
Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org>
Errors-To:
linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org
xHCI's PCI fixup, run at the end of pcie-brcmstb's probe, depends on
RPi4's VideoCore firmware interface to be up and running. It's possible
for both initializations to race, so make sure it's available prior to
starting.
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
---
drivers/pci/controller/pcie-brcmstb.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/drivers/pci/controller/pcie-brcmstb.c b/drivers/pci/controller/pcie-brcmstb.c
index 3a10e678c7f4..a3d3070a5832 100644
--- a/drivers/pci/controller/pcie-brcmstb.c
+++ b/drivers/pci/controller/pcie-brcmstb.c
@@ -28,6 +28,8 @@
#include <linux/string.h>
#include <linux/types.h>
+#include <soc/bcm2835/raspberrypi-firmware.h>
+
#include "../pci.h"
/* BRCM_PCIE_CAP_REGS - Offset for the mandatory capability config regs */
@@ -917,11 +919,24 @@ static int brcm_pcie_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node, *msi_np;
struct pci_host_bridge *bridge;
+ struct device_node *fw_np;
struct brcm_pcie *pcie;
struct pci_bus *child;
struct resource *res;
int ret;
+ /*
+ * We have to wait for the Raspberry Pi's firmware interface to be up
+ * as some PCI fixups depend on it.
+ */
+ fw_np = of_find_compatible_node(NULL, NULL,
+ "raspberrypi,bcm2835-firmware");
+ if (fw_np && !rpi_firmware_get(fw_np)) {
+ of_node_put(fw_np);
+ return -EPROBE_DEFER;
+ }
+ of_node_put(fw_np);
+
bridge = devm_pci_alloc_host_bridge(&pdev->dev, sizeof(*pcie));
if (!bridge)
return -ENOMEM;
From patchwork Tue Mar 24 18:28:12 2020
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
X-Patchwork-Id: 11456185
Return-Path:
<SRS0=7UWt=5J=lists.infradead.org=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@kernel.org>
Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org
[172.30.200.123])
by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id AD453174A
for <patchwork-linux-arm@patchwork.kernel.org>;
Tue, 24 Mar 2020 18:28:41 +0000 (UTC)
Received: from bombadil.infradead.org (bombadil.infradead.org
[198.137.202.133])
(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
(No client certificate requested)
by mail.kernel.org (Postfix) with ESMTPS id 8690720789
for <patchwork-linux-arm@patchwork.kernel.org>;
Tue, 24 Mar 2020 18:28:41 +0000 (UTC)
Authentication-Results: mail.kernel.org;
dkim=pass (2048-bit key) header.d=lists.infradead.org
header.i=@lists.infradead.org header.b="BSDoMdbd"
DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8690720789
Authentication-Results: mail.kernel.org;
dmarc=none (p=none dis=none) header.from=suse.de
Authentication-Results: mail.kernel.org;
spf=none
smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;
d=lists.infradead.org; s=bombadil.20170209; h=Sender:
Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post:
List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:
Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description:
Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:
List-Owner; bh=YaBoM78lqEEmZOW4u4cO0fQ+Qpc7vocOU6aRT/EpQsk=; b=BSDoMdbdXfJNCB
Ccoti2K8Qk9NgAlOnVt60cLhw66HCbJPwZn1v08f/rr05ZIoPMToFkJt5krqew7Vd+jlZnzMxf8MC
lBfOqOev9hIjbyu19c646LbpbqVrtrtm9vmy6Lvd2GGuQuvybpM0RHDvc2wzv8a3fejGMgKStaQ/3
Efne01FoiZvWBedWpTdsoGJbFzfSb4ua/8JT2Ki04i9itY4oTZs9itKK1Taqe3WfNDphluuFcmdGx
nNxQK/PkA6XCdpJHxaCz3DtyZj/2NhAqd8roXn+PUt5SG00Tfc6auERZQPLtTinW6m9ZaUkBhjJQ0
GHUMyyLHvQ583h1ty9ow==;
Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org)
by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux))
id 1jGoI3-0002Hl-Jz; Tue, 24 Mar 2020 18:28:39 +0000
Received: from mx2.suse.de ([195.135.220.15])
by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux))
id 1jGoHq-00024d-Jc; Tue, 24 Mar 2020 18:28:28 +0000
X-Virus-Scanned: by amavisd-new at test-mx.suse.de
Received: from relay2.suse.de (unknown [195.135.220.254])
by mx2.suse.de (Postfix) with ESMTP id EE53FABF6;
Tue, 24 Mar 2020 18:28:24 +0000 (UTC)
From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
To: linux-kernel@vger.kernel.org,
Mathias Nyman <mathias.nyman@intel.com>
Subject: [PATCH v6 4/4] USB: pci-quirks: Add Raspberry Pi 4 quirk
Date: Tue, 24 Mar 2020 19:28:12 +0100
Message-Id: <20200324182812.20420-5-nsaenzjulienne@suse.de>
X-Mailer: git-send-email 2.25.1
In-Reply-To: <20200324182812.20420-1-nsaenzjulienne@suse.de>
References: <20200324182812.20420-1-nsaenzjulienne@suse.de>
MIME-Version: 1.0
X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3
X-CRM114-CacheID: sfid-20200324_112826_791336_2ABB38D1
X-CRM114-Status: GOOD ( 16.34 )
X-Spam-Score: -2.3 (--)
X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary:
Content analysis details: (-2.3 points)
pts rule name description
---- ----------------------
--------------------------------------------------
0.0 RCVD_IN_MSPIKE_H3 RBL: Good reputation (+3)
[195.135.220.15 listed in wl.mailspike.net]
-2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/,
medium trust [195.135.220.15 listed in list.dnswl.org]
-0.0 SPF_PASS SPF: sender matches SPF record
0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record
0.0 RCVD_IN_MSPIKE_WL Mailspike good senders
X-BeenThere: linux-arm-kernel@lists.infradead.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: <linux-arm-kernel.lists.infradead.org>
List-Unsubscribe:
<http://lists.infradead.org/mailman/options/linux-arm-kernel>,
<mailto:linux-arm-kernel-request@lists.infradead.org?subject=unsubscribe>
List-Archive: <http://lists.infradead.org/pipermail/linux-arm-kernel/>
List-Post: <mailto:linux-arm-kernel@lists.infradead.org>
List-Help: <mailto:linux-arm-kernel-request@lists.infradead.org?subject=help>
List-Subscribe:
<http://lists.infradead.org/mailman/listinfo/linux-arm-kernel>,
<mailto:linux-arm-kernel-request@lists.infradead.org?subject=subscribe>
Cc: f.fainelli@gmail.com, sergei.shtylyov@cogentembedded.com,
gregkh@linuxfoundation.org, linux-usb@vger.kernel.org,
Nicolas Saenz Julienne <nsaenzjulienne@suse.de>, tim.gover@raspberrypi.org,
bcm-kernel-feedback-list@broadcom.com, linux-rpi-kernel@lists.infradead.org,
linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
wahrenst@gmx.net
Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org>
Errors-To:
linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org
On the Raspberry Pi 4, after a PCI reset, VL805's firmware may either be
loaded directly from an EEPROM or, if not present, by the SoC's
VideCore. Inform VideCore that VL805 was just reset.
Also, as this creates a dependency between USB_PCI and VideoCore's
firmware interface. Since USB_PCI can't be set as a module neither this
should.
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
---
Changes since v5:
- Fix Kconfig issue with allmodconfig
Changes since v4:
- Do not split up error message
Changes since v3:
- Add more complete error message
Changes since v1:
- Make RASPBERRYPI_FIRMWARE dependent on this quirk to make sure it
gets compiled when needed.
drivers/firmware/Kconfig | 3 ++-
drivers/usb/host/pci-quirks.c | 16 ++++++++++++++++
2 files changed, 18 insertions(+), 1 deletion(-)
diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig
index ea869addc89b..78ab2ad6d3f0 100644
--- a/drivers/firmware/Kconfig
+++ b/drivers/firmware/Kconfig
@@ -178,8 +178,9 @@ config ISCSI_IBFT
Otherwise, say N.
config RASPBERRYPI_FIRMWARE
- tristate "Raspberry Pi Firmware Driver"
+ bool "Raspberry Pi Firmware Driver"
depends on BCM2835_MBOX
+ default USB_PCI
help
This option enables support for communicating with the firmware on the
Raspberry Pi.
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index beb2efa71341..0dc34668bb2a 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -16,6 +16,9 @@
#include <linux/export.h>
#include <linux/acpi.h>
#include <linux/dmi.h>
+
+#include <soc/bcm2835/raspberrypi-firmware.h>
+
#include "pci-quirks.h"
#include "xhci-ext-caps.h"
@@ -1243,11 +1246,24 @@ static void quirk_usb_handoff_xhci(struct pci_dev *pdev)
static void quirk_usb_early_handoff(struct pci_dev *pdev)
{
+ int ret;
+
/* Skip Netlogic mips SoC's internal PCI USB controller.
* This device does not need/support EHCI/OHCI handoff
*/
if (pdev->vendor == 0x184e) /* vendor Netlogic */
return;
+
+ if (pdev->vendor == PCI_VENDOR_ID_VIA && pdev->device == 0x3483) {
+ ret = rpi_firmware_init_vl805(pdev);
+ if (ret) {
+ /* Firmware might be outdated, or something failed */
+ dev_warn(&pdev->dev,
+ "Failed to load VL805's firmware: %d. Will continue to attempt to work, but bad things might happen. You should fix this...\n",
+ ret);
+ }
+ }
+
if (pdev->class != PCI_CLASS_SERIAL_USB_UHCI &&
pdev->class != PCI_CLASS_SERIAL_USB_OHCI &&
pdev->class != PCI_CLASS_SERIAL_USB_EHCI &&