1 /* SPDX-License-Identifier: GPL-2.0-only */
3 #include <console/console.h>
4 #include <device/device.h>
5 #include <device/pci_def.h>
6 #include <intelblocks/p2sb.h>
9 void p2sb_soc_get_sb_mask(uint32_t *ep_mask
, size_t count
)
13 if (count
!= P2SB_EP_MASK_MAX_REG
) {
14 printk(BIOS_ERR
, "Unable to program EPMASK registers\n");
18 /* Remove the host accessing right to PSF register range.
19 * Set p2sb PCI offset EPMASK5 [29, 28, 27, 26] to disable Sideband
20 * access for PCI Root Bridge.
22 mask
= BIT(29) | BIT(28) | BIT(27) | BIT(26);
24 ep_mask
[P2SB_EP_MASK_5_REG
] = mask
;
27 * Set p2sb PCI offset EPMASK7 [31, 30] to disable Sideband
28 * access for Broadcast and Multicast.
30 mask
= BIT(31) | BIT(30);
32 ep_mask
[P2SB_EP_MASK_7_REG
] = mask
;
35 static void p2sb2_read_resources(struct device
*dev
)
37 /* Add the fixed MMIO resource for P2SB#2 */
38 mmio_range(dev
, PCI_BASE_ADDRESS_0
, IOE_P2SB_BAR
, IOE_P2SB_SIZE
);
41 static void p2sb_read_resources(struct device
*dev
)
43 /* Add the fixed MMIO resource for P2SB#1 */
44 mmio_range(dev
, PCI_BASE_ADDRESS_0
, P2SB_BAR
, P2SB_SIZE
);
47 struct device_operations pcd_p2sb_2_ops
= {
48 .read_resources
= p2sb2_read_resources
,
49 .set_resources
= noop_set_resources
,
50 .scan_bus
= scan_static_bus
,
53 struct device_operations pcd_p2sb_ops
= {
54 .read_resources
= p2sb_read_resources
,
55 .set_resources
= noop_set_resources
,
56 .scan_bus
= scan_static_bus
,