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/* inteltool - dump all registers on an Intel CPU + chipset based system */
/* SPDX-License-Identifier: GPL-2.0-only */
#include <stdio.h>
#include <stdlib.h>
#include "inteltool.h"
int print_rcba(struct pci_dev *sb)
{
int i, size = 0x4000;
volatile uint8_t *rcba;
uint32_t rcba_phys;
printf("\n============= RCBA ==============\n\n");
switch (sb->device_id) {
case PCI_DEVICE_ID_INTEL_ICH6:
case PCI_DEVICE_ID_INTEL_ICH7:
case PCI_DEVICE_ID_INTEL_ICH7M:
case PCI_DEVICE_ID_INTEL_ICH7DH:
case PCI_DEVICE_ID_INTEL_ICH7MDH:
case PCI_DEVICE_ID_INTEL_ICH8:
case PCI_DEVICE_ID_INTEL_ICH8M:
case PCI_DEVICE_ID_INTEL_ICH8ME:
case PCI_DEVICE_ID_INTEL_ICH9DH:
case PCI_DEVICE_ID_INTEL_ICH9DO:
case PCI_DEVICE_ID_INTEL_ICH9R:
case PCI_DEVICE_ID_INTEL_ICH9:
case PCI_DEVICE_ID_INTEL_ICH9M:
case PCI_DEVICE_ID_INTEL_ICH9ME:
case PCI_DEVICE_ID_INTEL_ICH10:
case PCI_DEVICE_ID_INTEL_ICH10R:
case PCI_DEVICE_ID_INTEL_NM10:
case PCI_DEVICE_ID_INTEL_I63XX:
case PCI_DEVICE_ID_INTEL_3400:
case PCI_DEVICE_ID_INTEL_3420:
case PCI_DEVICE_ID_INTEL_3450:
case PCI_DEVICE_ID_INTEL_3400_DESKTOP:
case PCI_DEVICE_ID_INTEL_3400_MOBILE:
case PCI_DEVICE_ID_INTEL_3400_MOBILE_SFF:
case PCI_DEVICE_ID_INTEL_B55_A:
case PCI_DEVICE_ID_INTEL_B55_B:
case PCI_DEVICE_ID_INTEL_H55:
case PCI_DEVICE_ID_INTEL_H57:
case PCI_DEVICE_ID_INTEL_HM55:
case PCI_DEVICE_ID_INTEL_HM57:
case PCI_DEVICE_ID_INTEL_P55:
case PCI_DEVICE_ID_INTEL_PM55:
case PCI_DEVICE_ID_INTEL_Q57:
case PCI_DEVICE_ID_INTEL_QM57:
case PCI_DEVICE_ID_INTEL_QS57:
case PCI_DEVICE_ID_INTEL_Z68:
case PCI_DEVICE_ID_INTEL_P67:
case PCI_DEVICE_ID_INTEL_UM67:
case PCI_DEVICE_ID_INTEL_HM65:
case PCI_DEVICE_ID_INTEL_H67:
case PCI_DEVICE_ID_INTEL_HM67:
case PCI_DEVICE_ID_INTEL_Q65:
case PCI_DEVICE_ID_INTEL_QS67:
case PCI_DEVICE_ID_INTEL_Q67:
case PCI_DEVICE_ID_INTEL_QM67:
case PCI_DEVICE_ID_INTEL_B65:
case PCI_DEVICE_ID_INTEL_C202:
case PCI_DEVICE_ID_INTEL_C204:
case PCI_DEVICE_ID_INTEL_C206:
case PCI_DEVICE_ID_INTEL_H61:
case PCI_DEVICE_ID_INTEL_Z77:
case PCI_DEVICE_ID_INTEL_Z75:
case PCI_DEVICE_ID_INTEL_Q77:
case PCI_DEVICE_ID_INTEL_Q75:
case PCI_DEVICE_ID_INTEL_B75:
case PCI_DEVICE_ID_INTEL_H77:
case PCI_DEVICE_ID_INTEL_C216:
case PCI_DEVICE_ID_INTEL_QM77:
case PCI_DEVICE_ID_INTEL_QS77:
case PCI_DEVICE_ID_INTEL_HM77:
case PCI_DEVICE_ID_INTEL_UM77:
case PCI_DEVICE_ID_INTEL_HM76:
case PCI_DEVICE_ID_INTEL_HM75:
case PCI_DEVICE_ID_INTEL_HM70:
case PCI_DEVICE_ID_INTEL_NM70:
case PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_FULL:
case PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_PREM:
case PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_BASE:
case PCI_DEVICE_ID_INTEL_WILDCATPOINT_LP_PREM:
case PCI_DEVICE_ID_INTEL_WILDCATPOINT_LP:
case PCI_DEVICE_ID_INTEL_C8_MOBILE:
case PCI_DEVICE_ID_INTEL_C8_DESKTOP:
case PCI_DEVICE_ID_INTEL_Z87:
case PCI_DEVICE_ID_INTEL_Z85:
case PCI_DEVICE_ID_INTEL_HM86:
case PCI_DEVICE_ID_INTEL_H87:
case PCI_DEVICE_ID_INTEL_HM87:
case PCI_DEVICE_ID_INTEL_Q85:
case PCI_DEVICE_ID_INTEL_Q87:
case PCI_DEVICE_ID_INTEL_QM87:
case PCI_DEVICE_ID_INTEL_B85:
case PCI_DEVICE_ID_INTEL_C222:
case PCI_DEVICE_ID_INTEL_C224:
case PCI_DEVICE_ID_INTEL_C226:
case PCI_DEVICE_ID_INTEL_H81:
case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_PRE:
case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_U_BASE_SKL:
case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_Y_PREM_SKL:
case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_U_PREM_SKL:
case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_U_BASE_KBL:
case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_U_PREM_KBL:
case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_Y_PREM_KBL:
case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_U_IHDCP_BASE:
case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_U_IHDCP_PREM:
case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_Y_IHDCP_PREM:
rcba_phys = pci_read_long(sb, 0xf0) & 0xfffffffe;
break;
case PCI_DEVICE_ID_INTEL_ICH:
case PCI_DEVICE_ID_INTEL_ICH0:
case PCI_DEVICE_ID_INTEL_ICH2:
case PCI_DEVICE_ID_INTEL_ICH4:
case PCI_DEVICE_ID_INTEL_ICH4M:
case PCI_DEVICE_ID_INTEL_ICH5:
printf("This southbridge does not have RCBA.\n");
return 1;
default:
printf("Error: Dumping RCBA on this southbridge is not (yet) supported.\n");
return 1;
}
rcba = map_physical(rcba_phys, size);
if (rcba == NULL) {
perror("Error mapping RCBA");
exit(1);
}
printf("RCBA = 0x%08x (MEM)\n\n", rcba_phys);
for (i = 0; i < size; i += 4) {
if (read32(rcba + i))
printf("0x%04x: 0x%08x\n", i, read32(rcba + i));
}
unmap_physical((void *)rcba, size);
return 0;
}
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