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a827ba910c
This parameter is needed by the PCI driver-mode interface but is always NULL on x86. There are a number of calls to this function so it makes sense to minimise the parameters. Adjust the x86 function to omit the first parameter, and introduce stub functions to handle the conversion. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> [bmeng: rebase the patch against u-boot-x86/next to get it applied cleanly] Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
101 lines
2.1 KiB
C
101 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2011 The Chromium OS Authors.
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* (C) Copyright 2008,2009
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* Graeme Russ, <graeme.russ@gmail.com>
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*
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* (C) Copyright 2002
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* Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
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*/
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#include <common.h>
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#include <dm.h>
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#include <errno.h>
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#include <malloc.h>
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#include <pci.h>
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#include <asm/io.h>
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#include <asm/pci.h>
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int pci_x86_read_config(pci_dev_t bdf, uint offset, ulong *valuep,
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enum pci_size_t size)
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{
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outl(bdf | (offset & 0xfc) | PCI_CFG_EN, PCI_REG_ADDR);
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switch (size) {
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case PCI_SIZE_8:
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*valuep = inb(PCI_REG_DATA + (offset & 3));
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break;
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case PCI_SIZE_16:
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*valuep = inw(PCI_REG_DATA + (offset & 2));
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break;
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case PCI_SIZE_32:
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*valuep = inl(PCI_REG_DATA);
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break;
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}
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return 0;
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}
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int pci_x86_write_config(pci_dev_t bdf, uint offset, ulong value,
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enum pci_size_t size)
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{
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outl(bdf | (offset & 0xfc) | PCI_CFG_EN, PCI_REG_ADDR);
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switch (size) {
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case PCI_SIZE_8:
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outb(value, PCI_REG_DATA + (offset & 3));
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break;
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case PCI_SIZE_16:
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outw(value, PCI_REG_DATA + (offset & 2));
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break;
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case PCI_SIZE_32:
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outl(value, PCI_REG_DATA);
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break;
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}
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return 0;
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}
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int pci_x86_clrset_config(pci_dev_t bdf, uint offset, ulong clr, ulong set,
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enum pci_size_t size)
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{
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ulong value;
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int ret;
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ret = pci_x86_read_config(bdf, offset, &value, size);
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if (ret)
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return ret;
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value &= ~clr;
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value |= set;
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return pci_x86_write_config(bdf, offset, value, size);
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}
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void pci_assign_irqs(int bus, int device, u8 irq[4])
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{
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pci_dev_t bdf;
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int func;
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u16 vendor;
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u8 pin, line;
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for (func = 0; func < 8; func++) {
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bdf = PCI_BDF(bus, device, func);
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pci_read_config16(bdf, PCI_VENDOR_ID, &vendor);
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if (vendor == 0xffff || vendor == 0x0000)
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continue;
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pci_read_config8(bdf, PCI_INTERRUPT_PIN, &pin);
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/* PCI spec says all values except 1..4 are reserved */
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if ((pin < 1) || (pin > 4))
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continue;
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line = irq[pin - 1];
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if (!line)
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continue;
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debug("Assigning IRQ %d to PCI device %d.%x.%d (INT%c)\n",
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line, bus, device, func, 'A' + pin - 1);
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pci_write_config8(bdf, PCI_INTERRUPT_LINE, line);
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}
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}
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