mirror of
https://github.com/brain-hackers/u-boot-brain
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d024236e5a
We have a large number of places where while we historically referenced gd in the code we no longer do, as well as cases where the code added that line "just in case" during development and never dropped it. Signed-off-by: Tom Rini <trini@konsulko.com>
73 lines
1.6 KiB
C
73 lines
1.6 KiB
C
/*
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* Copyright (c) 2014 Google, Inc
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* Written by Simon Glass <sjg@chromium.org>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <dm.h>
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#include <fdtdec.h>
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#include <inttypes.h>
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#include <pci.h>
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static int sandbox_pci_write_config(struct udevice *bus, pci_dev_t devfn,
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uint offset, ulong value,
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enum pci_size_t size)
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{
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struct dm_pci_emul_ops *ops;
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struct udevice *emul;
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int ret;
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ret = sandbox_pci_get_emul(bus, devfn, &emul);
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if (ret)
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return ret == -ENODEV ? 0 : ret;
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ops = pci_get_emul_ops(emul);
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if (!ops || !ops->write_config)
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return -ENOSYS;
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return ops->write_config(emul, offset, value, size);
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}
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static int sandbox_pci_read_config(struct udevice *bus, pci_dev_t devfn,
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uint offset, ulong *valuep,
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enum pci_size_t size)
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{
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struct dm_pci_emul_ops *ops;
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struct udevice *emul;
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int ret;
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/* Prepare the default response */
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*valuep = pci_get_ff(size);
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ret = sandbox_pci_get_emul(bus, devfn, &emul);
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if (ret)
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return ret == -ENODEV ? 0 : ret;
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ops = pci_get_emul_ops(emul);
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if (!ops || !ops->read_config)
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return -ENOSYS;
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return ops->read_config(emul, offset, valuep, size);
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}
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static const struct dm_pci_ops sandbox_pci_ops = {
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.read_config = sandbox_pci_read_config,
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.write_config = sandbox_pci_write_config,
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};
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static const struct udevice_id sandbox_pci_ids[] = {
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{ .compatible = "sandbox,pci" },
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{ }
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};
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U_BOOT_DRIVER(pci_sandbox) = {
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.name = "pci_sandbox",
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.id = UCLASS_PCI,
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.of_match = sandbox_pci_ids,
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.ops = &sandbox_pci_ops,
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/* Attach an emulator if we can */
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.child_post_bind = dm_scan_fdt_dev,
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.per_child_platdata_auto_alloc_size =
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sizeof(struct pci_child_platdata),
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};
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