xref: /aosp_15_r20/external/coreboot/util/inteltool/rootcmplx.c (revision b9411a12aaaa7e1e6a6fb7c5e057f44ee179a49c) 
1 /* inteltool - dump all registers on an Intel CPU + chipset based system */
2 /* SPDX-License-Identifier: GPL-2.0-only */
3 
4 #include <stdio.h>
5 #include <stdlib.h>
6 #include "inteltool.h"
7 
print_rcba(struct pci_dev * sb)8 int print_rcba(struct pci_dev *sb)
9 {
10 	int i, size = 0x4000;
11 	volatile uint8_t *rcba;
12 	uint32_t rcba_phys;
13 
14 	printf("\n============= RCBA ==============\n\n");
15 
16 	switch (sb->device_id) {
17 	case PCI_DEVICE_ID_INTEL_ICH6:
18 	case PCI_DEVICE_ID_INTEL_ICH7:
19 	case PCI_DEVICE_ID_INTEL_ICH7M:
20 	case PCI_DEVICE_ID_INTEL_ICH7DH:
21 	case PCI_DEVICE_ID_INTEL_ICH7MDH:
22 	case PCI_DEVICE_ID_INTEL_ICH8:
23 	case PCI_DEVICE_ID_INTEL_ICH8M:
24 	case PCI_DEVICE_ID_INTEL_ICH8ME:
25 	case PCI_DEVICE_ID_INTEL_ICH9DH:
26 	case PCI_DEVICE_ID_INTEL_ICH9DO:
27 	case PCI_DEVICE_ID_INTEL_ICH9R:
28 	case PCI_DEVICE_ID_INTEL_ICH9:
29 	case PCI_DEVICE_ID_INTEL_ICH9M:
30 	case PCI_DEVICE_ID_INTEL_ICH9ME:
31 	case PCI_DEVICE_ID_INTEL_ICH10:
32 	case PCI_DEVICE_ID_INTEL_ICH10D:
33 	case PCI_DEVICE_ID_INTEL_ICH10DO:
34 	case PCI_DEVICE_ID_INTEL_ICH10R:
35 	case PCI_DEVICE_ID_INTEL_NM10:
36 	case PCI_DEVICE_ID_INTEL_I63XX:
37 	case PCI_DEVICE_ID_INTEL_3400:
38 	case PCI_DEVICE_ID_INTEL_3420:
39 	case PCI_DEVICE_ID_INTEL_3450:
40 	case PCI_DEVICE_ID_INTEL_3400_DESKTOP:
41 	case PCI_DEVICE_ID_INTEL_3400_MOBILE:
42 	case PCI_DEVICE_ID_INTEL_3400_MOBILE_SFF:
43 	case PCI_DEVICE_ID_INTEL_B55_A:
44 	case PCI_DEVICE_ID_INTEL_B55_B:
45 	case PCI_DEVICE_ID_INTEL_H55:
46 	case PCI_DEVICE_ID_INTEL_H57:
47 	case PCI_DEVICE_ID_INTEL_HM55:
48 	case PCI_DEVICE_ID_INTEL_HM57:
49 	case PCI_DEVICE_ID_INTEL_P55:
50 	case PCI_DEVICE_ID_INTEL_PM55:
51 	case PCI_DEVICE_ID_INTEL_Q57:
52 	case PCI_DEVICE_ID_INTEL_QM57:
53 	case PCI_DEVICE_ID_INTEL_QS57:
54 	case PCI_DEVICE_ID_INTEL_Z68:
55 	case PCI_DEVICE_ID_INTEL_P67:
56 	case PCI_DEVICE_ID_INTEL_UM67:
57 	case PCI_DEVICE_ID_INTEL_HM65:
58 	case PCI_DEVICE_ID_INTEL_H67:
59 	case PCI_DEVICE_ID_INTEL_HM67:
60 	case PCI_DEVICE_ID_INTEL_Q65:
61 	case PCI_DEVICE_ID_INTEL_QS67:
62 	case PCI_DEVICE_ID_INTEL_Q67:
63 	case PCI_DEVICE_ID_INTEL_QM67:
64 	case PCI_DEVICE_ID_INTEL_B65:
65 	case PCI_DEVICE_ID_INTEL_C202:
66 	case PCI_DEVICE_ID_INTEL_C204:
67 	case PCI_DEVICE_ID_INTEL_C206:
68 	case PCI_DEVICE_ID_INTEL_H61:
69 	case PCI_DEVICE_ID_INTEL_Z77:
70 	case PCI_DEVICE_ID_INTEL_Z75:
71 	case PCI_DEVICE_ID_INTEL_Q77:
72 	case PCI_DEVICE_ID_INTEL_Q75:
73 	case PCI_DEVICE_ID_INTEL_B75:
74 	case PCI_DEVICE_ID_INTEL_H77:
75 	case PCI_DEVICE_ID_INTEL_C216:
76 	case PCI_DEVICE_ID_INTEL_QM77:
77 	case PCI_DEVICE_ID_INTEL_QS77:
78 	case PCI_DEVICE_ID_INTEL_HM77:
79 	case PCI_DEVICE_ID_INTEL_UM77:
80 	case PCI_DEVICE_ID_INTEL_HM76:
81 	case PCI_DEVICE_ID_INTEL_HM75:
82 	case PCI_DEVICE_ID_INTEL_HM70:
83 	case PCI_DEVICE_ID_INTEL_NM70:
84 	case PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_FULL:
85 	case PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_PREM:
86 	case PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_BASE:
87 	case PCI_DEVICE_ID_INTEL_WILDCATPOINT_LP_PREM:
88 	case PCI_DEVICE_ID_INTEL_WILDCATPOINT_LP:
89 	case PCI_DEVICE_ID_INTEL_C8_MOBILE:
90 	case PCI_DEVICE_ID_INTEL_C8_DESKTOP:
91 	case PCI_DEVICE_ID_INTEL_Z87:
92 	case PCI_DEVICE_ID_INTEL_Z85:
93 	case PCI_DEVICE_ID_INTEL_HM86:
94 	case PCI_DEVICE_ID_INTEL_H87:
95 	case PCI_DEVICE_ID_INTEL_HM87:
96 	case PCI_DEVICE_ID_INTEL_Q85:
97 	case PCI_DEVICE_ID_INTEL_Q87:
98 	case PCI_DEVICE_ID_INTEL_QM87:
99 	case PCI_DEVICE_ID_INTEL_B85:
100 	case PCI_DEVICE_ID_INTEL_C222:
101 	case PCI_DEVICE_ID_INTEL_C224:
102 	case PCI_DEVICE_ID_INTEL_C226:
103 	case PCI_DEVICE_ID_INTEL_H81:
104 	case PCI_DEVICE_ID_INTEL_C9_MOBILE:
105 	case PCI_DEVICE_ID_INTEL_C9_DESKTOP:
106 	case PCI_DEVICE_ID_INTEL_HM97:
107 	case PCI_DEVICE_ID_INTEL_Z97:
108 	case PCI_DEVICE_ID_INTEL_H97:
109 	case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_PRE:
110 	case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_U_BASE_SKL:
111 	case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_Y_PREM_SKL:
112 	case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_U_PREM_SKL:
113 	case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_U_BASE_KBL:
114 	case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_U_PREM_KBL:
115 	case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_Y_PREM_KBL:
116 	case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_U_IHDCP_BASE:
117 	case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_U_IHDCP_PREM:
118 	case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_Y_IHDCP_PREM:
119 		rcba_phys = pci_read_long(sb, 0xf0) & 0xfffffffe;
120 		break;
121 	case PCI_DEVICE_ID_INTEL_ICH:
122 	case PCI_DEVICE_ID_INTEL_ICH0:
123 	case PCI_DEVICE_ID_INTEL_ICH2:
124 	case PCI_DEVICE_ID_INTEL_ICH4:
125 	case PCI_DEVICE_ID_INTEL_ICH4M:
126 	case PCI_DEVICE_ID_INTEL_ICH5:
127 	case PCI_DEVICE_ID_INTEL_ADL_N:
128 		printf("This southbridge does not have RCBA.\n");
129 		return 1;
130 	default:
131 		printf("Error: Dumping RCBA on this southbridge is not (yet) supported.\n");
132 		return 1;
133 	}
134 
135 	rcba = map_physical(rcba_phys, size);
136 
137 	if (rcba == NULL) {
138 		perror("Error mapping RCBA");
139 		printf("Try booting with iomem=relaxed.\n");
140 		exit(1);
141 	}
142 
143 	printf("RCBA = 0x%08x (MEM)\n\n", rcba_phys);
144 
145 	for (i = 0; i < size; i += 4) {
146 		if (read32(rcba + i))
147 			printf("0x%04x: 0x%08x\n", i, read32(rcba + i));
148 	}
149 
150 	print_iobp(sb, rcba);
151 
152 	unmap_physical((void *)rcba, size);
153 	return 0;
154 }
155