coreboot-kgpe-d16/util/superiotool/infineon.c

71 lines
1.6 KiB
C

/* This file is part of the superiotool project */
/* SPDX-License-Identifier: GPL-2.0-or-later */
#include "superiotool.h"
#define DEVICE_ID_REG 0x20
#define DEVICE_REV_REG 0x21
static const struct superio_registers reg_table[] = {
{0x0b, "SLB9635TT12", {
{NOLDN, NULL,
{0x20,0x21,0x26,0x27,EOT},
{0x0b,0x00,NANA,NANA,EOT}},
{0, NULL,
{0x30,0x38,0x60,0x61,0x70,0x71,0xf1,0xf2,0xf3,0xf4,0xf5,EOT},
{0x00,0x00,NANA,NANA,0x00,0x02,0xd1,0x15,0x0b,0x00,NANA,EOT}},
{EOT}}},
{EOT}
};
/* same as some SMSC */
static void enter_conf_mode_infineon(uint16_t port)
{
OUTB(0x55, port);
}
static void exit_conf_mode_infineon(uint16_t port)
{
OUTB(0xaa, port);
}
void probe_idregs_infineon(uint16_t port)
{
uint8_t rev, devid;
probing_for("Infineon", "", port);
enter_conf_mode_infineon(port);
devid = regval(port, DEVICE_ID_REG);
rev = regval(port, DEVICE_REV_REG);
if (superio_unknown(reg_table, devid)) {
if (verbose)
printf(NOTFOUND "id=0x%02x, rev=0x%02x\n", devid, rev);
exit_conf_mode_infineon(port);
return;
}
/* Attempt to prevent false matches on SMSC FDC37N972, see smsc.c */
if (((regval(port, 0x27)<<8)|regval(port, 0x26)) != port) {
if (verbose)
printf(NOTFOUND "id=0x%02x, rev=0x%02x\n", devid, rev);
exit_conf_mode_infineon(port);
return;
}
printf("Found Infineon %s (id=0x%02x, rev=0x%02x) at 0x%x\n",
get_superio_name(reg_table, devid), devid, rev, port);
chip_found = 1;
dump_superio("Infineon", reg_table, port, devid, LDN_SEL);
exit_conf_mode_infineon(port);
}
void print_infineon_chips(void)
{
print_vendor_chips("Infineon", reg_table);
}