mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-05 02:36:39 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
86 lines
1.8 KiB
C
86 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (c) 2011 The Chromium OS Authors.
|
|
* (C) Copyright 2008,2009
|
|
* Graeme Russ, <graeme.russ@gmail.com>
|
|
*
|
|
* (C) Copyright 2002
|
|
* Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <errno.h>
|
|
#include <malloc.h>
|
|
#include <pci.h>
|
|
#include <asm/io.h>
|
|
#include <asm/pci.h>
|
|
|
|
int pci_x86_read_config(struct udevice *bus, pci_dev_t bdf, uint offset,
|
|
ulong *valuep, enum pci_size_t size)
|
|
{
|
|
outl(bdf | (offset & 0xfc) | PCI_CFG_EN, PCI_REG_ADDR);
|
|
switch (size) {
|
|
case PCI_SIZE_8:
|
|
*valuep = inb(PCI_REG_DATA + (offset & 3));
|
|
break;
|
|
case PCI_SIZE_16:
|
|
*valuep = inw(PCI_REG_DATA + (offset & 2));
|
|
break;
|
|
case PCI_SIZE_32:
|
|
*valuep = inl(PCI_REG_DATA);
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int pci_x86_write_config(struct udevice *bus, pci_dev_t bdf, uint offset,
|
|
ulong value, enum pci_size_t size)
|
|
{
|
|
outl(bdf | (offset & 0xfc) | PCI_CFG_EN, PCI_REG_ADDR);
|
|
switch (size) {
|
|
case PCI_SIZE_8:
|
|
outb(value, PCI_REG_DATA + (offset & 3));
|
|
break;
|
|
case PCI_SIZE_16:
|
|
outw(value, PCI_REG_DATA + (offset & 2));
|
|
break;
|
|
case PCI_SIZE_32:
|
|
outl(value, PCI_REG_DATA);
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void pci_assign_irqs(int bus, int device, u8 irq[4])
|
|
{
|
|
pci_dev_t bdf;
|
|
int func;
|
|
u16 vendor;
|
|
u8 pin, line;
|
|
|
|
for (func = 0; func < 8; func++) {
|
|
bdf = PCI_BDF(bus, device, func);
|
|
pci_read_config16(bdf, PCI_VENDOR_ID, &vendor);
|
|
if (vendor == 0xffff || vendor == 0x0000)
|
|
continue;
|
|
|
|
pci_read_config8(bdf, PCI_INTERRUPT_PIN, &pin);
|
|
|
|
/* PCI spec says all values except 1..4 are reserved */
|
|
if ((pin < 1) || (pin > 4))
|
|
continue;
|
|
|
|
line = irq[pin - 1];
|
|
if (!line)
|
|
continue;
|
|
|
|
debug("Assigning IRQ %d to PCI device %d.%x.%d (INT%c)\n",
|
|
line, bus, device, func, 'A' + pin - 1);
|
|
|
|
pci_write_config8(bdf, PCI_INTERRUPT_LINE, line);
|
|
}
|
|
}
|