From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
To: f.fainelli@gmail.com, gregkh@linuxfoundation.org,
robh@kernel.org, wahrenst@gmx.net, p.zabel@pengutronix.de
Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-rpi-kernel@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
bcm-kernel-feedback-list@broadcom.com, tim.gover@raspberrypi.org,
linux-pci@vger.kernel.org, helgaas@kernel.org,
andy.shevchenko@gmail.com, mathias.nyman@linux.intel.com,
lorenzo.pieralisi@arm.com,
Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Subject: [PATCH v4 8/9] Revert "firmware: raspberrypi: Introduce vl805 init routine"
Date: Mon, 22 Jun 2020 12:38:17 +0200 [thread overview]
Message-ID: <20200622103817.476-9-nsaenzjulienne@suse.de> (raw)
In-Reply-To: <20200622103817.476-1-nsaenzjulienne@suse.de>
This reverts commit fbbc5ff3f7f9f4cad562e530ae2cf5d8964fe6d3.
The vl805 init routine has moved into drivers/reset/reset-raspberrypi.c
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
---
drivers/firmware/raspberrypi.c | 61 ----------------------
include/soc/bcm2835/raspberrypi-firmware.h | 7 ---
2 files changed, 68 deletions(-)
diff --git a/drivers/firmware/raspberrypi.c b/drivers/firmware/raspberrypi.c
index ef8098856a47..a3e85186f8e6 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;
@@ -284,63 +280,6 @@ 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", },
{},
diff --git a/include/soc/bcm2835/raspberrypi-firmware.h b/include/soc/bcm2835/raspberrypi-firmware.h
index 3025aca3c358..cc9cdbc66403 100644
--- a/include/soc/bcm2835/raspberrypi-firmware.h
+++ b/include/soc/bcm2835/raspberrypi-firmware.h
@@ -10,7 +10,6 @@
#include <linux/of_device.h>
struct rpi_firmware;
-struct pci_dev;
enum rpi_firmware_property_status {
RPI_FIRMWARE_STATUS_REQUEST = 0,
@@ -142,7 +141,6 @@ 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)
@@ -160,11 +158,6 @@ 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__ */
--
2.27.0
next prev parent reply other threads:[~2020-06-22 14:28 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-22 10:38 [PATCH v4 0/9] Raspberry Pi 4 USB firmware initialization rework Nicolas Saenz Julienne
2020-06-22 10:38 ` [PATCH v4 1/9] dt-bindings: reset: Add a binding for the RPi Firmware reset controller Nicolas Saenz Julienne
2020-06-22 10:38 ` [PATCH v4 2/9] reset: Add Raspberry Pi 4 firmware " Nicolas Saenz Julienne
2020-06-22 14:42 ` Andy Shevchenko
2020-06-22 15:08 ` Nicolas Saenz Julienne
2020-06-22 15:48 ` Andy Shevchenko
2020-06-22 10:38 ` [PATCH v4 3/9] ARM: dts: bcm2711: Add firmware usb reset node Nicolas Saenz Julienne
2020-06-22 10:38 ` [PATCH v4 4/9] ARM: dts: bcm2711: Add reset controller to xHCI node Nicolas Saenz Julienne
2020-06-22 10:38 ` [PATCH v4 5/9] usb: xhci-pci: Add support for reset controllers Nicolas Saenz Julienne
2020-06-22 10:38 ` [PATCH v4 6/9] Revert "USB: pci-quirks: Add Raspberry Pi 4 quirk" Nicolas Saenz Julienne
2020-06-22 14:44 ` Andy Shevchenko
2020-06-22 15:11 ` Nicolas Saenz Julienne
2020-06-22 15:51 ` Andy Shevchenko
2020-06-22 10:38 ` [PATCH v4 7/9] usb: host: pci-quirks: Bypass xHCI quirks for Raspberry Pi 4 Nicolas Saenz Julienne
2020-06-22 10:38 ` Nicolas Saenz Julienne [this message]
2020-06-22 10:38 ` [PATCH v4 9/9] Revert "PCI: brcmstb: Wait for Raspberry Pi's firmware when present" Nicolas Saenz Julienne
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