Update RPi4 USB patch to latest, drop no longer used tegra patch

1 files changed, 658 insertions, 0 deletions

diff --git a/USB-pci-quirks-Add-Raspberry-Pi-4-quirk.patch b/USB-pci-quirks-Add-Raspberry-Pi-4-quirk.patch
new file mode 100644
index 000000000..7b4f60cb5
--- /dev/null
+++ b/USB-pci-quirks-Add-Raspberry-Pi-4-quirk.patch
@@ -0,0 +1,658 @@
+From patchwork Fri Mar  6 11:43:45 2020
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+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 v4 1/4] soc: bcm2835: Sync xHCI reset firmware property with
+ downstream
+Date: Fri,  6 Mar 2020 12:43:45 +0100
+Message-Id: <20200306114348.5172-2-nsaenzjulienne@suse.de>
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+Cc: tim.gover@raspberrypi.org, 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
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+
+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 Fri Mar  6 11:43:46 2020
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+ Fri,  6 Mar 2020 11:43:56 +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 v4 2/4] firmware: raspberrypi: Introduce vl805 init routine
+Date: Fri,  6 Mar 2020 12:43:46 +0100
+Message-Id: <20200306114348.5172-3-nsaenzjulienne@suse.de>
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+Cc: tim.gover@raspberrypi.org, 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,
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+
+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 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..c161bdab759d 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 int rpi_firmware_init_vl805(struct pci_dev *pdev)
++{
++	return 0;
++}
+ #endif
+ 
+ #endif /* __SOC_RASPBERRY_FIRMWARE_H__ */
+
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+ Fri,  6 Mar 2020 11:43:57 +0000 (UTC)
+From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
+To: linux-kernel@vger.kernel.org, Florian Fainelli <f.fainelli@gmail.com>,
+ bcm-kernel-feedback-list@broadcom.com,
+ Nicolas Saenz Julienne <nsaenzjulienne@suse.de>,
+ Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
+ Andrew Murray <amurray@thegoodpenguin.co.uk>
+Subject: [PATCH v4 3/4] PCI: brcmstb: Wait for Raspberry Pi's firmware when
+ present
+Date: Fri,  6 Mar 2020 12:43:47 +0100
+Message-Id: <20200306114348.5172-4-nsaenzjulienne@suse.de>
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+Cc: tim.gover@raspberrypi.org, gregkh@linuxfoundation.org,
+ linux-usb@vger.kernel.org, linux-rpi-kernel@lists.infradead.org,
+ linux-pci@vger.kernel.org, Bjorn Helgaas <bhelgaas@google.com>,
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+
+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
+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 Fri Mar  6 11:43:48 2020
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+X-Patchwork-Submitter: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
+X-Patchwork-Id: 11423701
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+From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
+To: linux-kernel@vger.kernel.org,
+	Mathias Nyman <mathias.nyman@intel.com>
+Subject: [PATCH v4 4/4] USB: pci-quirks: Add Raspberry Pi 4 quirk
+Date: Fri,  6 Mar 2020 12:43:48 +0100
+Message-Id: <20200306114348.5172-5-nsaenzjulienne@suse.de>
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+ 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,
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+
+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 XHCI_PCI and VideoCore's
+firmware interface, reflect that on the firmware interface Kconfg.
+
+Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
+---
+
+Changes since v3:
+ - Add more complete error message.
+ - Add braces around if statement
+
+Changes since v1:
+ - Make RASPBERRYPI_FIRMWARE dependent on this quirk to make sure it
+   gets compiled when needed.
+
+ drivers/firmware/Kconfig      |  1 +
+ drivers/usb/host/pci-quirks.c | 16 ++++++++++++++++
+ 2 files changed, 17 insertions(+)
+
+diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig
+index ea869addc89b..40a468d712a5 100644
+--- a/drivers/firmware/Kconfig
++++ b/drivers/firmware/Kconfig
+@@ -180,6 +180,7 @@ config ISCSI_IBFT
+ config RASPBERRYPI_FIRMWARE
+ 	tristate "Raspberry Pi Firmware Driver"
+ 	depends on BCM2835_MBOX
++	default XHCI_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..452f5f12b042 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\n", ret);
++			dev_warn(&pdev->dev, "Will continue to attempt to work, "
++				 "but bad things might happen. You should fix this...\n");
++		}
++	}
++
+ 	if (pdev->class != PCI_CLASS_SERIAL_USB_UHCI &&
+ 			pdev->class != PCI_CLASS_SERIAL_USB_OHCI &&
+ 			pdev->class != PCI_CLASS_SERIAL_USB_EHCI &&