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

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Peter Robinson 2020-03-08 13:31:15 +00:00
parent b48a24fbaa
commit 7f70f668f8
4 changed files with 660 additions and 132 deletions
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658
USB-pci-quirks-Add-Raspberry-Pi-4-quirk.patch Normal file
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@ -0,0 +1,658 @@
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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>,
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Subject: [PATCH v4 1/4] soc: bcm2835: Sync xHCI reset firmware property with
downstream
Date: Fri, 6 Mar 2020 12:43:45 +0100
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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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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,
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From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
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Subject: [PATCH v4 2/4] firmware: raspberrypi: Introduce vl805 init routine
Date: Fri, 6 Mar 2020 12:43:46 +0100
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Cc: tim.gover@raspberrypi.org, gregkh@linuxfoundation.org,
linux-usb@vger.kernel.org, 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. 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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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
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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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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
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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 &&

39
arm64-tegra-jetson-tx1-fixes.patch
View File

@ -1,39 +0,0 @@
From aea4a7a551fd7342299d34f04a8b75f58644ac07 Mon Sep 17 00:00:00 2001
From: Peter Robinson <pbrobinson@gmail.com>
Date: Sat, 23 Mar 2019 17:45:10 +0000
Subject: [PATCH 2/3] arm64: tegra210: Jetson TX1: disable display panel and
associated backlight
The Jetson TX1 dev kit doesn't ship with a screen by default and if
it's not there it appears to crash on boot so disable them both by
default until we work out the problem.
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
---
arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts b/arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts
index 37e3c46e753f..a16f24f1d5ff 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts
@@ -36,7 +36,7 @@
host1x@50000000 {
dsi@54300000 {
- status = "okay";
+ status = "disabled";
avdd-dsi-csi-supply = <&vdd_dsi_csi>;
@@ -54,6 +54,8 @@
i2c@7000c400 {
backlight: backlight@2c {
+ status = "disabled";
+
compatible = "ti,lp8557";
reg = <0x2c>;
--
2.20.1

4
kernel.spec
View File

@ -822,8 +822,8 @@ Patch304: ARM-tegra-usb-no-reset.patch
# Raspberry Pi
# https://patchwork.kernel.org/cover/11353083/
Patch310: arm64-pinctrl-bcm2835-Add-support-for-all-BCM2711-GPIOs.patch
# https://github.com/raspberrypi/linux/commit/c74b1b53254016fd83b580b8d49bb02d72ce4836
Patch311: usb-xhci-Raspberry-Pi-FW-loader-for-VIA-VL805.patch
# https://patchwork.kernel.org/cover/11423693/
Patch311: USB-pci-quirks-Add-Raspberry-Pi-4-quirk.patch
# https://patchwork.kernel.org/patch/11372935/
Patch312: bcm2835-irqchip-Quiesce-IRQs-left-enabled-by-bootloader.patch
# https://patchwork.kernel.org/patch/11398981/

91
usb-xhci-Raspberry-Pi-FW-loader-for-VIA-VL805.patch
View File

@ -1,91 +0,0 @@
From eb05efbfe58a7815957844e6dbe28735e85393cf Mon Sep 17 00:00:00 2001
From: Tim Gover <990920+timg236@users.noreply.github.com>
Date: Wed, 15 Jan 2020 11:26:19 +0000
Subject: [PATCH] usb: xhci: Raspberry Pi FW loader for VIA VL805
The VL805 FW may either be loaded from an SPI EEPROM or alternatively
loaded directly by the VideoCore firmware. A PCI reset will reset
the VL805 XHCI controller on the Raspberry Pi4 requiring the firmware
to be reloaded if an SPI EEPROM is not present.
Use a VideoCore mailbox to trigger the loading of the VL805
firmware (if necessary) after a PCI reset.
Signed-off-by: Tim Gover <tim.gover@raspberrypi.org>
---
drivers/usb/host/pci-quirks.c | 31 +++++++++++++++++++++-
include/soc/bcm2835/raspberrypi-firmware.h | 2 +-
2 files changed, 31 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index 6c7f0a876b96..c3367b053044 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -18,7 +18,7 @@
#include <linux/dmi.h>
#include "pci-quirks.h"
#include "xhci-ext-caps.h"
-
+#include <soc/bcm2835/raspberrypi-firmware.h>
#define UHCI_USBLEGSUP 0xc0 /* legacy support */
#define UHCI_USBCMD 0 /* command register */
@@ -630,6 +630,32 @@ bool usb_amd_pt_check_port(struct device *device, int port)
}
EXPORT_SYMBOL_GPL(usb_amd_pt_check_port);
+/* The VL805 firmware may either be loaded from an EEPROM or by the BIOS into
+ * memory. If run from memory it must be reloaded after a PCI fundmental reset.
+ * The Raspberry Pi firmware acts as the BIOS in this case.
+ */
+static void usb_vl805_init(struct pci_dev *pdev)
+{
+#if IS_ENABLED(CONFIG_RASPBERRYPI_FIRMWARE)
+ struct rpi_firmware *fw;
+ struct {
+ u32 dev_addr;
+ } packet;
+ int ret;
+
+ fw = rpi_firmware_get(NULL);
+ if (!fw)
+ return;
+
+ packet.dev_addr = (pdev->bus->number << 20) |
+ (PCI_SLOT(pdev->devfn) << 15) | (PCI_FUNC(pdev->devfn) << 12);
+
+ dev_dbg(&pdev->dev, "RPI_FIRMWARE_NOTIFY_XHCI_RESET %x", packet.dev_addr);
+ ret = rpi_firmware_property(fw, RPI_FIRMWARE_NOTIFY_XHCI_RESET,
+ &packet, sizeof(packet));
+#endif
+}
+
/*
* Make sure the controller is completely inactive, unable to
* generate interrupts or do DMA.
@@ -1207,6 +1233,9 @@ static void quirk_usb_handoff_xhci(struct pci_dev *pdev)
if (pdev->vendor == PCI_VENDOR_ID_INTEL)
usb_enable_intel_xhci_ports(pdev);
+ if (pdev->vendor == PCI_VENDOR_ID_VIA && pdev->device == 0x3483)
+ usb_vl805_init(pdev);
+
op_reg_base = base + XHCI_HC_LENGTH(readl(base));
/* Wait for the host controller to be ready before writing any
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,
--
2.24.1