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authorLinus Torvalds <torvalds@linux-foundation.org>2020-10-15 18:51:18 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2020-10-15 18:51:18 +0200
commitc6dbef7307629cce855aa6b482b60cbf7777ed88 (patch)
treed8d13630bd57090173ad9f0c5f8e3bfb392964c9 /drivers/firmware
parentMerge tag 'staging-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git... (diff)
parentusb: musb: gadget: Use fallthrough pseudo-keyword (diff)
downloadlinux-c6dbef7307629cce855aa6b482b60cbf7777ed88.tar.xz
linux-c6dbef7307629cce855aa6b482b60cbf7777ed88.zip
Merge tag 'usb-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB/PHY/Thunderbolt driver updates from Greg KH: "Here is the big set of USB, PHY, and Thunderbolt driver updates for 5.10-rc1. Lots of tiny different things for these subsystems are in here, including: - phy driver updates - thunderbolt / USB 4 updates and additions - USB gadget driver updates - xhci fixes and updates - typec driver additions and updates - api conversions to various drivers for core kernel api changes - new USB control message functions to make it harder to get wrong, as found by syzbot (took 2 tries to get it right) - lots of tiny USB driver fixes and updates all over the place All of these have been in linux-next for a while, with the exception of the last "obviously correct" patch that updated a FALLTHROUGH comment that got merged last weekend" * tag 'usb-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (374 commits) usb: musb: gadget: Use fallthrough pseudo-keyword usb: typec: Add QCOM PMIC typec detection driver USB: serial: option: add Cellient MPL200 card usb: typec: tcpci_maxim: Add support for Sink FRS usb: typec: tcpci: Implement callbacks for FRS usb: typec: tcpm: Add support for Sink Fast Role SWAP(FRS) usb: typec: tcpci_maxim: Chip level TCPC driver usb: typec: tcpci: Add set_vbus tcpci callback usb: typec: tcpci: Add a getter method to retrieve tcpm_port reference usbip: vhci_hcd: fix calling usb_hcd_giveback_urb() with irqs enabled usb: cdc-acm: add quirk to blacklist ETAS ES58X devices USB: serial: ftdi_sio: use cur_altsetting for consistency USB: serial: option: Add Telit FT980-KS composition USB: core: remove polling for /sys/kernel/debug/usb/devices usb: typec: add support for STUSB160x Type-C controller family usb: typec: add typec_find_pwr_opmode usb: typec: hd3ss3220: Use OF graph API to get the connector fwnode dt-bindings: usb: renesas,usb3-peri: Document HS and SS data bus dt-bindings: usb: convert ti,hd3ss3220 bindings to json-schema usb: dwc2: Fix INTR OUT transfers in DDMA mode. ...
Diffstat (limited to 'drivers/firmware')
-rw-r--r--drivers/firmware/Kconfig3
-rw-r--r--drivers/firmware/raspberrypi.c61
2 files changed, 1 insertions, 63 deletions
diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig
index fbd785dd0513..4843e94713a4 100644
--- a/drivers/firmware/Kconfig
+++ b/drivers/firmware/Kconfig
@@ -178,9 +178,8 @@ config ISCSI_IBFT
Otherwise, say N.
config RASPBERRYPI_FIRMWARE
- bool "Raspberry Pi Firmware Driver"
+ tristate "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/firmware/raspberrypi.c b/drivers/firmware/raspberrypi.c
index 8f2fb4c562da..2371d08bdd17 100644
--- a/drivers/firmware/raspberrypi.c
+++ b/drivers/firmware/raspberrypi.c
@@ -12,8 +12,6 @@
#include <linux/of_platform.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
-#include <linux/pci.h>
-#include <linux/delay.h>
#include <soc/bcm2835/raspberrypi-firmware.h>
#define MBOX_MSG(chan, data28) (((data28) & ~0xf) | ((chan) & 0xf))
@@ -21,8 +19,6 @@
#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;
@@ -301,63 +297,6 @@ struct rpi_firmware *rpi_firmware_get(struct device_node *firmware_node)
}
EXPORT_SYMBOL_GPL(rpi_firmware_get);
-/*
- * 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, version;
- 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 -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;
-
- ret = rpi_firmware_property(fw, RPI_FIRMWARE_NOTIFY_XHCI_RESET,
- &dev_addr, sizeof(dev_addr));
- if (ret)
- return ret;
-
- /* 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;
-}
-EXPORT_SYMBOL_GPL(rpi_firmware_init_vl805);
-
static const struct of_device_id rpi_firmware_of_match[] = {
{ .compatible = "raspberrypi,bcm2835-firmware", },
{},