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/* 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[] = {
{0xb7, "SB7xx", {
{NOLDN, NULL,
{0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x28,0x29,0x2a,
0x2b,0x2c,0x2e, 0x2f, EOT},
{NANA,NANA,NANA,NANA,NANA,NANA,NANA,NANA,NANA,NANA,NANA,NANA,NANA,NANA,EOT}},
{0x3, "EC channel 0",
{0x30,0x60,0x61, EOT},
{NANA,NANA,NANA,EOT}},
{0x5, "Irda",
{0x30,0x60,0x61,0x70, EOT},
{NANA,NANA,NANA,NANA,EOT}},
{0x7, "Keyboard Controller",
{0x30, EOT},
{NANA,EOT}},
{0x9, "Mailbox",
{0x30,0x60,0x61, EOT},
{NANA,NANA,NANA,EOT}},
{EOT}}},
{0xb8, "SB8xx", {
{NOLDN, NULL,
{0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x28,0x29,0x2a,
0x2b,0x2c,0x2e, 0x2f, EOT},
{NANA,NANA,NANA,NANA,NANA,NANA,NANA,NANA,NANA,NANA,NANA,NANA,NANA,NANA,EOT}},
{0x3, "EC channel 0",
{0x30,0x60,0x61, EOT},
{NANA,NANA,NANA,EOT}},
{0x5, "Irda",
{0x30,0x60,0x61,0x70, EOT},
{NANA,NANA,NANA,NANA,EOT}},
{0x7, "Keyboard Controller",
{0x30, EOT},
{NANA,EOT}},
{0x9, "Mailbox",
{0x30,0x60,0x61, EOT},
{NANA,NANA,NANA,EOT}},
{EOT}}},
{EOT}
};
/* same as serverengines */
static void enter_conf_mode_ec(uint16_t port)
{
OUTB(0x5a, port);
}
static void exit_conf_mode_ec(uint16_t port)
{
OUTB(0xa5, port);
}
uint16_t detect_ec(void)
{
uint16_t ec_port;
struct pci_dev *dev;
dev = pci_dev_find(0x1002, 0x439d);
if (!dev) {
return 0;
}
/* is EC disabled ? */
if (!(pci_read_byte(dev, 0x40) & (1 << 7)))
return 0;
ec_port = pci_read_word(dev, 0xa4);
if (!(ec_port & 0x1))
return 0;
ec_port &= ~0x1;
return ec_port;
}
void probe_idregs_amd(uint16_t port)
{
uint8_t rev, devid;
probing_for("AMD EC", "", port);
if (!(port = detect_ec()))
return;
enter_conf_mode_ec(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_ec(port);
return;
}
printf("Found AMD EC %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("AMD EC", reg_table, port, devid, LDN_SEL);
exit_conf_mode_ec(port);
}
void print_amd_chips(void)
{
print_vendor_chips("AMD EC", reg_table);
}
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