diff options
Diffstat (limited to 'util')
| -rw-r--r-- | util/inteltool/Makefile | 2 | ||||
| -rw-r--r-- | util/inteltool/inteltool.h | 1 | ||||
| -rw-r--r-- | util/inteltool/iobp.c | 149 | ||||
| -rw-r--r-- | util/inteltool/rootcmplx.c | 2 |
4 files changed, 153 insertions, 1 deletions
diff --git a/util/inteltool/Makefile b/util/inteltool/Makefile index 1ae04d4fc7..3b692fd332 100644 --- a/util/inteltool/Makefile +++ b/util/inteltool/Makefile @@ -16,7 +16,7 @@ CPPFLAGS += -I$(top)/src/arch/x86/include OBJS = inteltool.o pcr.o cpu.o gpio.o gpio_groups.o rootcmplx.o powermgt.o \ - memory.o pcie.o amb.o ivy_memory.o spi.o gfx.o ahci.o lpc.o + memory.o pcie.o amb.o ivy_memory.o spi.o gfx.o ahci.o lpc.o iobp.o OS_ARCH = $(shell uname) ifeq ($(OS_ARCH), Darwin) diff --git a/util/inteltool/inteltool.h b/util/inteltool/inteltool.h index b314fe4de8..6c361b4e52 100644 --- a/util/inteltool/inteltool.h +++ b/util/inteltool/inteltool.h @@ -386,6 +386,7 @@ int print_mchbar(struct pci_dev *nb, struct pci_access *pacc, const char *dump_s int print_pmbase(struct pci_dev *sb, struct pci_access *pacc); int print_lpc(struct pci_dev *sb, struct pci_access *pacc); int print_rcba(struct pci_dev *sb); +void print_iobp(struct pci_dev *sb, volatile uint8_t *rcba); int print_gpios(struct pci_dev *sb, int show_all, int show_diffs); const struct gpio_community *const *get_gpio_communities(struct pci_dev *const sb, size_t* community_count, diff --git a/util/inteltool/iobp.c b/util/inteltool/iobp.c new file mode 100644 index 0000000000..dafcb001c2 --- /dev/null +++ b/util/inteltool/iobp.c @@ -0,0 +1,149 @@ +/* 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" + +#define RCBA8(x) (*((volatile u8 *)(rcba + x))) +#define RCBA16(x) (*((volatile u16 *)(rcba + x))) +#define RCBA32(x) (*((volatile u32 *)(rcba + x))) +#define RCBA64(x) (*((volatile u64 *)(rcba + x))) +/* IO Buffer Programming */ +#define IOBPIRI 0x2330 +#define IOBPD 0x2334 +#define IOBPS 0x2338 +#define IOBPS_READY 0x0001 +#define IOBPS_TX_MASK 0x0006 +#define IOBPS_MASK 0xff00 +#define IOBPS_READ 0x0600 +#define IOBPS_WRITE 0x0700 +#define IOBPU 0x233a +#define IOBPU_MAGIC 0xf000 + +#define IOBP_RETRY 1000 +static inline int iobp_poll(volatile uint8_t *rcba) +{ + for (int try = IOBP_RETRY; try > 0; try --) { + u16 status = RCBA16(IOBPS); + if ((status & IOBPS_READY) == 0) + return 1; + // udelay(10); + } + + printf("IOBP: timeout waiting for transaction to complete\n"); + return 0; +} + +static u32 pch_iobp_read(volatile uint8_t *rcba, u32 address) +{ + u16 status; + + if (!iobp_poll(rcba)) + return 0; + + /* Set the address */ + RCBA32(IOBPIRI) = address; + + /* READ OPCODE */ + status = RCBA16(IOBPS); + status &= ~IOBPS_MASK; + status |= IOBPS_READ; + RCBA16(IOBPS) = status; + + /* Undocumented magic */ + RCBA16(IOBPU) = IOBPU_MAGIC; + + /* Set ready bit */ + status = RCBA16(IOBPS); + status |= IOBPS_READY; + RCBA16(IOBPS) = status; + + if (!iobp_poll(rcba)) + return 0; + + /* Check for successful transaction */ + status = RCBA16(IOBPS); + if (status & IOBPS_TX_MASK) { + printf("IOBP: read 0x%08x failed\n", address); + return 0; + } + + /* Read IOBP data */ + return RCBA32(IOBPD); +} + +typedef struct { + u32 addr; + char *name; +} iobp_register_t; + +static const iobp_register_t lynxpoint_iobp_registers[] = { + /* SATA IOBP */ + {0xea000151, "SATA_IOBP_SP0G3IR"}, + {0xea000051, "SATA_IOBP_SP1G3IR"}, + {0xea002550, "SATA_IOBP_SP0DTLE_DATA"}, + {0xea002554, "SATA_IOBP_SP0DTLE_EDGE"}, + {0xea002750, "SATA_IOBP_SP1DTLE_DATA"}, + {0xea002754, "SATA_IOBP_SP1DTLE_EDGE"}, + /* USB port IOBP */ + {0xe5004100, "USBP01"}, + {0xe5004200, "USBP02"}, + {0xe5004300, "USBP03"}, + {0xe5004400, "USBP04"}, + {0xe5004500, "USBP05"}, + {0xe5004600, "USBP06"}, + {0xe5004700, "USBP07"}, + {0xe5004800, "USBP08"}, + /* LynxPoint-LP doesn't have port 9-14, the IOBP values are zero */ + {0xe5004900, "USBP09"}, + {0xe5004a00, "USBP10"}, + {0xe5004b00, "USBP11"}, + {0xe5004c00, "USBP12"}, + {0xe5004d00, "USBP13"}, + {0xe5004e00, "USBP14"}, +}; + +void print_iobp(struct pci_dev *sb, volatile uint8_t *rcba) +{ + const iobp_register_t *iobp_registers = NULL; + size_t iobp_size = 0; + + switch (sb->device_id) { + 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_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: + iobp_registers = lynxpoint_iobp_registers; + iobp_size = ARRAY_SIZE(lynxpoint_iobp_registers); + break; + default: + break; + } + + if (iobp_size == 0) + return; + + printf("\n============= IOBP ==============\n\n"); + + for (size_t i = 0; i < iobp_size; i++) { + u32 address = iobp_registers[i].addr; + const char *name = iobp_registers[i].name; + u32 v = pch_iobp_read(rcba, address); + printf("0x%08x: 0x%08x (%s)\n", address, v, name); + } +} diff --git a/util/inteltool/rootcmplx.c b/util/inteltool/rootcmplx.c index 490897f938..9819af528b 100644 --- a/util/inteltool/rootcmplx.c +++ b/util/inteltool/rootcmplx.c @@ -138,6 +138,8 @@ int print_rcba(struct pci_dev *sb) printf("0x%04x: 0x%08x\n", i, read32(rcba + i)); } + print_iobp(sb, rcba); + unmap_physical((void *)rcba, size); return 0; } |