u-boot/arch/x86/cpu/coreboot/pci.c
Simon Glass 87f4cd3a30 x86: link: Add PCH driver to support SPI Flash
U-Boot on coreboot does not have a driver for the PCH so cannot see the
SPI peripheral now that it has moved inside the PCH. Add a simple driver so
that SPI flash works again.

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-04-29 18:51:50 -06:00

47 lines
924 B
C

/*
* 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>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.h>
#include <errno.h>
#include <pci.h>
#include <asm/io.h>
#include <asm/pci.h>
DECLARE_GLOBAL_DATA_PTR;
static const struct dm_pci_ops pci_x86_ops = {
.read_config = pci_x86_read_config,
.write_config = pci_x86_write_config,
};
static const struct udevice_id pci_x86_ids[] = {
{ .compatible = "pci-x86" },
{ }
};
U_BOOT_DRIVER(pci_x86_drv) = {
.name = "pci_x86",
.id = UCLASS_PCI,
.of_match = pci_x86_ids,
.ops = &pci_x86_ops,
};
static const struct udevice_id generic_pch_ids[] = {
{ .compatible = "intel,pch" },
{ }
};
U_BOOT_DRIVER(generic_pch_drv) = {
.name = "pch",
.id = UCLASS_PCH,
.of_match = generic_pch_ids,
};