Loading...
/*
* Copyright (c) 2013-2015, Wind River Systems, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @file
* @brief System/hardware module for the galileo platform
*
* This module provides routines to initialize and support board-level hardware
* for the galileo platform.
*
* Implementation Remarks:
* Handlers for the secondary serial port have not been added.
*/
#include <nanokernel.h>
#include <init.h>
#include <device.h>
#include <misc/printk.h>
#include <misc/__assert.h>
#include "soc.h"
#include <uart.h>
#include <drivers/pci/pci.h>
#include <drivers/pci/pci_mgr.h>
#include <drivers/ioapic.h>
#ifdef CONFIG_PCI_LEGACY_BRIDGE
/**
*
* @brief Configure PCI interrupt pin to IRQ mapping
*
* The routine detects PCI legacy bridge and if present,
* configures PCI interrupt pin to IRQ mapping for D:20
* and D:21 IO Fabric, that contains the following devices:
* - SPI0, SPI1;
* - I2C;
* - GPIO;
* - UART0, UART1;
* - SDIO/eMMC, USB, Ethernet.
*/
static int pci_legacy_bridge_irq_config(struct device *unused)
{
ARG_UNUSED(unused);
struct pci_dev_info info = {
.function = PCI_FUNCTION_ANY,
.bar = PCI_BAR_ANY,
};
if (pci_legacy_bridge_detect(&info) == 0) {
pci_legacy_bridge_configure(&info, 1, PCI_INTA, 16);
pci_legacy_bridge_configure(&info, 1, PCI_INTB, 17);
pci_legacy_bridge_configure(&info, 1, PCI_INTC, 18);
pci_legacy_bridge_configure(&info, 1, PCI_INTD, 19);
pci_legacy_bridge_configure(&info, 0, PCI_INTA, 17);
pci_legacy_bridge_configure(&info, 0, PCI_INTB, 18);
pci_legacy_bridge_configure(&info, 0, PCI_INTC, 19);
pci_legacy_bridge_configure(&info, 0, PCI_INTD, 16);
}
return 0;
}
SYS_INIT(pci_legacy_bridge_irq_config,
SECONDARY, CONFIG_KERNEL_INIT_PRIORITY_DEVICE);
#endif /* CONFIG_PCI_LEGACY_BRIDGE */
|