7fcd4d58ec
This renames bus to upstream and link_list to downstream. Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Change-Id: I80a81b6b8606e450ff180add9439481ec28c2420 Reviewed-on: https://review.coreboot.org/c/coreboot/+/78330 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
53 lines
1.5 KiB
C
53 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#include <stdint.h>
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#include <console/console.h>
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#include <device/device.h>
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#include <device/pci.h>
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#include <device/pci_ops.h>
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#include <device/cardbus.h>
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static void pci7xx1_enable(struct device *const dev)
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{
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printk(BIOS_DEBUG, "%s: TI PCI7xx1 media controller\n", __func__);
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if (PCI_FUNC(dev->path.pci.devfn) == 0) {
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const unsigned int slot = PCI_SLOT(dev->path.pci.devfn);
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int fn;
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/* Hide functions based on devicetree info. */
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u16 gcr = pci_read_config16(dev, 0x86);
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for (fn = 5; fn > 0; --fn) {
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const struct device *const d =
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pcidev_path_behind(dev->upstream, PCI_DEVFN(slot, fn));
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if (!d || d->enabled) continue;
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printk(BIOS_DEBUG,
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"%s: Hiding function #%d.\n", __func__, fn);
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switch (fn) {
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case 1: gcr |= 1 << 4; break; /* CardBus B */
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case 2: gcr |= 1 << 3; break; /* OHCI 1394 */
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case 3: gcr |= 1 << 5; break; /* Flash media */
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case 4: gcr |= 1 << 6; break; /* SD card */
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case 5: gcr |= 1 << 7; break; /* Smart Card */
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}
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}
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pci_write_config16(dev, 0x86, gcr);
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}
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}
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static struct device_operations device_ops = {
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.read_resources = cardbus_read_resources,
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.set_resources = pci_dev_set_resources,
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.enable_resources = cardbus_enable_resources,
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.init = 0,
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.scan_bus = pci_scan_bridge,
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.enable = pci7xx1_enable,
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.reset_bus = pci_bus_reset,
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};
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static const struct pci_driver ti_pci7xx1 __pci_driver = {
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.ops = &device_ops,
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.vendor = 0x104c,
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.device = 0x8031,
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};
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