Add small OHCI PCI driver for USB 1.1 OHCI controllers on PCI bus.
This driver matches only on PCI class (serial-ohci) and requires
DM-USB ; any sort of deprecated legacy usage is not supported.
Signed-off-by: Marek Vasut <marek.vasut+rene...@gmail.com>
---
drivers/usb/host/Kconfig | 6 ++++
drivers/usb/host/Makefile | 1 +
drivers/usb/host/ohci-pci.c | 55 +++++++++++++++++++++++++++++++++++++
3 files changed, 62 insertions(+)
create mode 100644 drivers/usb/host/ohci-pci.c
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index a213c918bc..045aa0a3f6 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -224,6 +224,12 @@ config USB_OHCI_GENERIC
---help---
Enables support for generic OHCI controller.
+config USB_OHCI_PCI
+ bool "Support for PCI-based OHCI USB controller"
+ depends on DM_USB
+ help
+ Enables support for the PCI-based OHCI controller.
+
endif # USB_OHCI_HCD
config USB_UHCI_HCD
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index cb8c315a15..b7c94cadcb 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -18,6 +18,7 @@ obj-$(CONFIG_USB_OHCI_EP93XX) += ohci-ep93xx.o
obj-$(CONFIG_USB_OHCI_SUNXI) += ohci-sunxi.o
obj-$(CONFIG_USB_OHCI_LPC32XX) += ohci-lpc32xx.o
obj-$(CONFIG_USB_OHCI_GENERIC) += ohci-generic.o
+obj-$(CONFIG_USB_OHCI_PCI) += ohci-pci.o
# echi
obj-$(CONFIG_USB_EHCI_HCD) += ehci-hcd.o
diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c
new file mode 100644
index 0000000000..dd078f008e
--- /dev/null
+++ b/drivers/usb/host/ohci-pci.c
@@ -0,0 +1,55 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2018 Marek Vasut <marek.va...@gmail.com>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <errno.h>
+#include <pci.h>
+#include <usb.h>
+#include <asm/io.h>
+
+#include "ohci.h"
+
+/* Information about the USB port */
+struct ohci_pci_priv {
+ ohci_t ohci;
+};
+
+static int ohci_pci_probe(struct udevice *dev)
+{
+ struct ohci_regs *regs;
+ u32 cmd;
+
+ regs = dm_pci_map_bar(dev, PCI_BASE_ADDRESS_0, PCI_REGION_MEM);
+ if (!regs)
+ return -ENOMEM;
+
+ /* Enable busmaster */
+ dm_pci_read_config32(dev, PCI_COMMAND, &cmd);
+ cmd |= PCI_COMMAND_MASTER;
+ dm_pci_write_config32(dev, PCI_COMMAND, cmd);
+
+ debug("OHCI-PCI init regs %p\n", regs);
+
+ return ohci_register(dev, regs);
+}
+
+U_BOOT_DRIVER(ohci_pci) = {
+ .name = "ohci_pci",
+ .id = UCLASS_USB,
+ .probe = ohci_pci_probe,
+ .remove = ohci_deregister,
+ .ops = &ohci_usb_ops,
+ .platdata_auto_alloc_size = sizeof(struct usb_platdata),
+ .priv_auto_alloc_size = sizeof(struct ohci_pci_priv),
+ .flags = DM_FLAG_ALLOC_PRIV_DMA,
+};
+
+static struct pci_device_id ohci_pci_supported[] = {
+ { PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_OHCI, ~0) },
+ {},
+};
+
+U_BOOT_PCI_DEVICE(ohci_pci, ohci_pci_supported);
--
2.18.0
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