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149 lines
4.5 KiB
149 lines
4.5 KiB
/* |
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* Copyright (c) 2003-2012 Broadcom Corporation |
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* All Rights Reserved |
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* |
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* This software is available to you under a choice of one of two |
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* licenses. You may choose to be licensed under the terms of the GNU |
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* General Public License (GPL) Version 2, available from the file |
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* COPYING in the main directory of this source tree, or the Broadcom |
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* license below: |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY BROADCOM ``AS IS'' AND ANY EXPRESS OR |
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#include <linux/dma-mapping.h> |
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#include <linux/kernel.h> |
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#include <linux/delay.h> |
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#include <linux/init.h> |
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#include <linux/pci.h> |
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#include <linux/platform_device.h> |
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#include <asm/netlogic/haldefs.h> |
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#include <asm/netlogic/xlp-hal/iomap.h> |
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#include <asm/netlogic/xlp-hal/xlp.h> |
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/* |
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* USB glue logic registers, used only during initialization |
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*/ |
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#define USB_CTL_0 0x01 |
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#define USB_PHY_0 0x0A |
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#define USB_PHY_RESET 0x01 |
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#define USB_PHY_PORT_RESET_0 0x10 |
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#define USB_PHY_PORT_RESET_1 0x20 |
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#define USB_CONTROLLER_RESET 0x01 |
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#define USB_INT_STATUS 0x0E |
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#define USB_INT_EN 0x0F |
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#define USB_PHY_INTERRUPT_EN 0x01 |
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#define USB_OHCI_INTERRUPT_EN 0x02 |
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#define USB_OHCI_INTERRUPT1_EN 0x04 |
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#define USB_OHCI_INTERRUPT2_EN 0x08 |
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#define USB_CTRL_INTERRUPT_EN 0x10 |
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#define nlm_read_usb_reg(b, r) nlm_read_reg(b, r) |
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#define nlm_write_usb_reg(b, r, v) nlm_write_reg(b, r, v) |
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#define nlm_get_usb_pcibase(node, inst) \ |
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nlm_pcicfg_base(XLP_IO_USB_OFFSET(node, inst)) |
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#define nlm_get_usb_regbase(node, inst) \ |
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(nlm_get_usb_pcibase(node, inst) + XLP_IO_PCI_HDRSZ) |
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static void nlm_usb_intr_en(int node, int port) |
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{ |
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uint32_t val; |
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uint64_t port_addr; |
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port_addr = nlm_get_usb_regbase(node, port); |
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val = nlm_read_usb_reg(port_addr, USB_INT_EN); |
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val = USB_CTRL_INTERRUPT_EN | USB_OHCI_INTERRUPT_EN | |
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USB_OHCI_INTERRUPT1_EN | USB_OHCI_INTERRUPT2_EN; |
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nlm_write_usb_reg(port_addr, USB_INT_EN, val); |
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} |
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static void nlm_usb_hw_reset(int node, int port) |
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{ |
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uint64_t port_addr; |
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uint32_t val; |
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/* reset USB phy */ |
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port_addr = nlm_get_usb_regbase(node, port); |
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val = nlm_read_usb_reg(port_addr, USB_PHY_0); |
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val &= ~(USB_PHY_RESET | USB_PHY_PORT_RESET_0 | USB_PHY_PORT_RESET_1); |
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nlm_write_usb_reg(port_addr, USB_PHY_0, val); |
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mdelay(100); |
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val = nlm_read_usb_reg(port_addr, USB_CTL_0); |
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val &= ~(USB_CONTROLLER_RESET); |
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val |= 0x4; |
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nlm_write_usb_reg(port_addr, USB_CTL_0, val); |
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} |
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static int __init nlm_platform_usb_init(void) |
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{ |
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if (cpu_is_xlpii()) |
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return 0; |
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pr_info("Initializing USB Interface\n"); |
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nlm_usb_hw_reset(0, 0); |
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nlm_usb_hw_reset(0, 3); |
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/* Enable PHY interrupts */ |
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nlm_usb_intr_en(0, 0); |
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nlm_usb_intr_en(0, 3); |
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return 0; |
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} |
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arch_initcall(nlm_platform_usb_init); |
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static u64 xlp_usb_dmamask = ~(u32)0; |
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/* Fixup the IRQ for USB devices which is exist on XLP SOC PCIE bus */ |
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static void nlm_usb_fixup_final(struct pci_dev *dev) |
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{ |
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dev->dev.dma_mask = &xlp_usb_dmamask; |
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dev->dev.coherent_dma_mask = DMA_BIT_MASK(32); |
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switch (dev->devfn) { |
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case 0x10: |
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dev->irq = PIC_EHCI_0_IRQ; |
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break; |
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case 0x11: |
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dev->irq = PIC_OHCI_0_IRQ; |
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break; |
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case 0x12: |
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dev->irq = PIC_OHCI_1_IRQ; |
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break; |
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case 0x13: |
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dev->irq = PIC_EHCI_1_IRQ; |
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break; |
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case 0x14: |
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dev->irq = PIC_OHCI_2_IRQ; |
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break; |
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case 0x15: |
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dev->irq = PIC_OHCI_3_IRQ; |
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break; |
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} |
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} |
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_NETLOGIC, PCI_DEVICE_ID_NLM_EHCI, |
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nlm_usb_fixup_final); |
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_NETLOGIC, PCI_DEVICE_ID_NLM_OHCI, |
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nlm_usb_fixup_final);
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