From 964c3d395812a7e5f5f133588c36d3b91d58fef6 Mon Sep 17 00:00:00 2001 From: Peter Robinson Date: Thu, 7 May 2020 14:17:39 +0100 Subject: Update RPi4 USB quirks patch to latest --- USB-pci-quirks-Add-Raspberry-Pi-4-quirk.patch | 417 ++++++++++++++------------ 1 file changed, 230 insertions(+), 187 deletions(-) diff --git a/USB-pci-quirks-Add-Raspberry-Pi-4-quirk.patch b/USB-pci-quirks-Add-Raspberry-Pi-4-quirk.patch index fb7c1afaf..b1f4e7942 100644 --- a/USB-pci-quirks-Add-Raspberry-Pi-4-quirk.patch +++ b/USB-pci-quirks-Add-Raspberry-Pi-4-quirk.patch @@ -1,27 +1,27 @@ -From patchwork Tue Mar 24 18:28:09 2020 +From patchwork Tue May 5 16:13:14 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolas Saenz Julienne -X-Patchwork-Id: 11456187 +X-Patchwork-Id: 11529601 Return-Path: - + 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 + by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1BF82139A for ; 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Note -that there is a gap between the property introduced and the previous -one. This is also the case downstream. +that gap between the property introduced and the previous one is due to +the properties not being defined. Signed-off-by: Nicolas Saenz Julienne Reviewed-by: Florian Fainelli @@ -123,30 +122,30 @@ index 7800e12ee042..cc9cdbc66403 100644 /* Dispmanx TAGS */ RPI_FIRMWARE_FRAMEBUFFER_ALLOCATE = 0x00040001, -From patchwork Tue Mar 24 18:28:10 2020 +From patchwork Tue May 5 16:13:15 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolas Saenz Julienne -X-Patchwork-Id: 11456191 +X-Patchwork-Id: 11529609 Return-Path: - + 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 + by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 337F6139A for ; - Tue, 24 Mar 2020 18:29:30 +0000 (UTC) + Tue, 5 May 2020 16:14:02 +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 + by mail.kernel.org (Postfix) with ESMTPS id 062432084D for ; 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- Tue, 24 Mar 2020 18:28:23 +0000 (UTC) + by mx2.suse.de (Postfix) with ESMTP id 4B6EDAF5D; + Tue, 5 May 2020 16:13:29 +0000 (UTC) From: Nicolas Saenz Julienne -To: linux-kernel@vger.kernel.org, +To: f.fainelli@gmail.com, gregkh@linuxfoundation.org, wahrenst@gmx.net, + helgaas@kernel.org, linux-kernel@vger.kernel.org, Nicolas Saenz Julienne , - Florian Fainelli , Ray Jui , - Scott Branden , + Ray Jui , Scott Branden , 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> +Subject: [PATCH v8 2/4] firmware: raspberrypi: Introduce vl805 init routine +Date: Tue, 5 May 2020 18:13:15 +0200 +Message-Id: <20200505161318.26200-3-nsaenzjulienne@suse.de> +X-Mailer: git-send-email 2.26.2 +In-Reply-To: <20200505161318.26200-1-nsaenzjulienne@suse.de> +References: <20200505161318.26200-1-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-CRM114-CacheID: sfid-20200505_091329_063893_301DE39B +X-CRM114-Status: GOOD ( 18.76 ) X-Spam-Score: -2.3 (--) -X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: +X-Spam-Report: SpamAssassin version 3.4.4 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 RCVD_IN_MSPIKE_H3 RBL: Good reputation (+3) + [195.135.220.15 listed in wl.mailspike.net] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record + -0.0 SPF_PASS SPF: sender matches 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 @@ -216,61 +215,85 @@ List-Help: List-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 +Cc: linux-pci@vger.kernel.org, tim.gover@raspberrypi.org, + linux-usb@vger.kernel.org, linux-rpi-kernel@lists.infradead.org, + linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" 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 +The Raspberry Pi 4 gets its USB functionality from VL805, a PCIe chip +that implements xHCI. 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. +co-processor, VideoCore. RPi4's VideoCore OS contains both the non public +firmware load logic and the VL805 firmware blob. The function this patch +introduces triggers the aforementioned process. Signed-off-by: Nicolas Saenz Julienne -Reviewed-by: Florian Fainelli --- + +Change since v7: +- Use usleep_delay() +- Add comment about PCI errors +- Don't wait on error +- Typos + +Change since v6: +- Add test to avoid loading the firmware when not needed +- Since we have it around, print VL805's firmware version, it'll make +debugging easier in the future +- Correct typos +- Add a clearer view of HW topology in patch description + Changes since v4: - - Inline function definition when RASPBERRYPI_FIRMWARE is not defined +- Inline function definition when RASPBERRYPI_FIRMWARE is not defined Changes since v1: - - Move include into .c file and add forward declaration to .h +- 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(+) + drivers/firmware/raspberrypi.c | 61 ++++++++++++++++++++++ + include/soc/bcm2835/raspberrypi-firmware.h | 7 +++ + 2 files changed, 68 insertions(+) diff --git a/drivers/firmware/raspberrypi.c b/drivers/firmware/raspberrypi.c -index da26a584dca0..cbb495aff6a0 100644 +index da26a584dca0..a166ad0cec2c 100644 --- a/drivers/firmware/raspberrypi.c +++ b/drivers/firmware/raspberrypi.c -@@ -12,6 +12,7 @@ +@@ -12,6 +12,8 @@ #include #include #include +#include ++#include #include #define MBOX_MSG(chan, data28) (((data28) & ~0xf) | ((chan) & 0xf)) -@@ -286,6 +287,43 @@ struct rpi_firmware *rpi_firmware_get(struct device_node *firmware_node) +@@ -19,6 +21,8 @@ + #define MBOX_DATA28(msg) ((msg) & ~0xf) + #define MBOX_CHAN_PROPERTY 8 + ++#define VL805_PCI_CONFIG_VERSION_OFFSET 0x50 ++ + static struct platform_device *rpi_hwmon; + static struct platform_device *rpi_clk; + +@@ -286,6 +290,63 @@ 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. ++ * The Raspberry Pi 4 gets its USB functionality from VL805, a PCIe chip that ++ * implements xHCI. After a PCI reset, VL805's firmware may either be loaded ++ * directly from an EEPROM or, if not present, by the SoC's co-processor, ++ * VideoCore. RPi4's VideoCore OS contains both the non public firmware load ++ * logic and the VL805 firmware blob. This function triggers the aforementioned ++ * process. + */ +int rpi_firmware_init_vl805(struct pci_dev *pdev) +{ + struct device_node *fw_np; + struct rpi_firmware *fw; -+ u32 dev_addr; ++ u32 dev_addr, version; + int ret; + + fw_np = of_find_compatible_node(NULL, NULL, @@ -281,7 +304,19 @@ index da26a584dca0..cbb495aff6a0 100644 + fw = rpi_firmware_get(fw_np); + of_node_put(fw_np); + if (!fw) -+ return -EPROBE_DEFER; ++ return -ENODEV; ++ ++ /* ++ * Make sure we don't trigger a firmware load unnecessarily. ++ * ++ * If something went wrong with PCI, this whole exercise would be ++ * futile as VideoCore expects from us a configured PCI bus. Just take ++ * the faulty version (likely ~0) and let xHCI's registration fail ++ * further down the line. ++ */ ++ pci_read_config_dword(pdev, VL805_PCI_CONFIG_VERSION_OFFSET, &version); ++ if (version) ++ goto exit; + + dev_addr = pdev->bus->number << 20 | PCI_SLOT(pdev->devfn) << 15 | + PCI_FUNC(pdev->devfn) << 12; @@ -291,7 +326,13 @@ index da26a584dca0..cbb495aff6a0 100644 + if (ret) + return ret; + -+ dev_dbg(&pdev->dev, "loaded Raspberry Pi's VL805 firmware\n"); ++ /* Wait for vl805 to startup */ ++ usleep_range(200, 1000); ++ ++ pci_read_config_dword(pdev, VL805_PCI_CONFIG_VERSION_OFFSET, ++ &version); ++exit: ++ pci_info(pdev, "VL805 firmware version %08x\n", version); + + return 0; +} @@ -333,30 +374,30 @@ index cc9cdbc66403..3025aca3c358 100644 #endif /* __SOC_RASPBERRY_FIRMWARE_H__ */ -From patchwork Tue Mar 24 18:28:11 2020 +From patchwork Tue May 5 16:13:16 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolas Saenz Julienne -X-Patchwork-Id: 11456189 +X-Patchwork-Id: 11529613 Return-Path: - + 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 + by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 09B41139A for ; 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Signed-off-by: Nicolas Saenz Julienne Reviewed-by: Florian Fainelli --- - drivers/pci/controller/pcie-brcmstb.c | 15 +++++++++++++++ - 1 file changed, 15 insertions(+) + +Changes since v6: +- Add more complete comment + + drivers/pci/controller/pcie-brcmstb.c | 17 +++++++++++++++++ + 1 file changed, 17 insertions(+) diff --git a/drivers/pci/controller/pcie-brcmstb.c b/drivers/pci/controller/pcie-brcmstb.c -index 3a10e678c7f4..a3d3070a5832 100644 +index 6d79d14527a6..0b97b94c4a9a 100644 --- a/drivers/pci/controller/pcie-brcmstb.c +++ b/drivers/pci/controller/pcie-brcmstb.c @@ -28,6 +28,8 @@ @@ -461,7 +503,7 @@ index 3a10e678c7f4..a3d3070a5832 100644 #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) +@@ -917,11 +919,26 @@ static int brcm_pcie_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node, *msi_np; struct pci_host_bridge *bridge; @@ -472,8 +514,10 @@ index 3a10e678c7f4..a3d3070a5832 100644 int ret; + /* -+ * We have to wait for the Raspberry Pi's firmware interface to be up -+ * as some PCI fixups depend on it. ++ * We have to wait for Raspberry Pi's firmware interface to be up as a ++ * PCI fixup, rpi_firmware_init_vl805(), depends on it. This driver's ++ * probe can race with the firmware interface's (see ++ * drivers/firmware/raspberrypi.c) and potentially break the PCI fixup. + */ + fw_np = of_find_compatible_node(NULL, NULL, + "raspberrypi,bcm2835-firmware"); @@ -487,30 +531,30 @@ index 3a10e678c7f4..a3d3070a5832 100644 if (!bridge) return -ENOMEM; -From patchwork Tue Mar 24 18:28:12 2020 +From patchwork Tue May 5 16:13:17 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolas Saenz Julienne -X-Patchwork-Id: 11456185 +X-Patchwork-Id: 11529615 Return-Path: - + 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 + by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9C85E1392 for ; - Tue, 24 Mar 2020 18:28:41 +0000 (UTC) + Tue, 5 May 2020 16:14:26 +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 + by mail.kernel.org (Postfix) with ESMTPS id 75AD8206FA for ; 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- Tue, 24 Mar 2020 18:28:24 +0000 (UTC) + by mx2.suse.de (Postfix) with ESMTP id 80D21AF4F; + Tue, 5 May 2020 16:13:32 +0000 (UTC) From: Nicolas Saenz Julienne -To: linux-kernel@vger.kernel.org, - Mathias Nyman -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> +To: f.fainelli@gmail.com, gregkh@linuxfoundation.org, wahrenst@gmx.net, + helgaas@kernel.org, linux-kernel@vger.kernel.org, + Mathias Nyman +Subject: [PATCH v8 4/4] USB: pci-quirks: Add Raspberry Pi 4 quirk +Date: Tue, 5 May 2020 18:13:17 +0200 +Message-Id: <20200505161318.26200-5-nsaenzjulienne@suse.de> +X-Mailer: git-send-email 2.26.2 +In-Reply-To: <20200505161318.26200-1-nsaenzjulienne@suse.de> +References: <20200505161318.26200-1-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-CRM114-CacheID: sfid-20200505_091332_068613_1A981780 +X-CRM114-Status: GOOD ( 16.37 ) X-Spam-Score: -2.3 (--) -X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: +X-Spam-Report: SpamAssassin version 3.4.4 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 RCVD_IN_MSPIKE_H3 RBL: Good reputation (+3) + [195.135.220.15 listed in wl.mailspike.net] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record + -0.0 SPF_PASS SPF: sender matches 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 @@ -577,23 +622,21 @@ List-Help: List-Subscribe: , -Cc: f.fainelli@gmail.com, sergei.shtylyov@cogentembedded.com, - gregkh@linuxfoundation.org, linux-usb@vger.kernel.org, - Nicolas Saenz Julienne , tim.gover@raspberrypi.org, +Cc: tim.gover@raspberrypi.org, linux-pci@vger.kernel.org, + linux-usb@vger.kernel.org, Nicolas Saenz Julienne , 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 + linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" 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. +VideoCore. Inform VideoCore 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. +firmware interface, and since USB_PCI can't be set as a module neither +this can. Reflect that on the firmware interface Kconfg. Signed-off-by: Nicolas Saenz Julienne --- @@ -616,7 +659,7 @@ Changes since v1: 2 files changed, 18 insertions(+), 1 deletion(-) diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig -index ea869addc89b..78ab2ad6d3f0 100644 +index 8007d4aa76dc..b42140cff8ac 100644 --- a/drivers/firmware/Kconfig +++ b/drivers/firmware/Kconfig @@ -178,8 +178,9 @@ config ISCSI_IBFT @@ -631,7 +674,7 @@ index ea869addc89b..78ab2ad6d3f0 100644 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 +index 92150ecdb036..0b949acfa258 100644 --- a/drivers/usb/host/pci-quirks.c +++ b/drivers/usb/host/pci-quirks.c @@ -16,6 +16,9 @@ -- cgit