util/superiotool: Add initial support for Exar XR28V384.

Datasheet
https://www.exar.com/content/document.ashx?id=21368

Add support for Exar chip used on a custom board
that was designed to connect to the Olive Hill Plus
development platform. The register dump was verified
on the Olive Hill Plus platform.

Change-Id: Ibd3e13eefb706bd99b6e5b38634f6855b39848ab
Signed-off-by: Derek Waldner <derek.waldner.os@gmail.com>
Reviewed-on: https://review.coreboot.org/14367
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
This commit is contained in:
Derek Waldner 2016-04-14 12:13:48 -05:00 committed by Martin Roth
parent 433e8d272d
commit 3b42119237
3 changed files with 105 additions and 2 deletions

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@ -28,8 +28,8 @@ CFLAGS += -O2 -Wall -Wstrict-prototypes -Wundef -Wstrict-aliasing \
-Werror-implicit-function-declaration -ansi -pedantic $(VERSION)
LDFLAGS += -lz
OBJS = superiotool.o serverengines.o ali.o fintek.o ite.o nsc.o nuvoton.o \
smsc.o winbond.o infineon.o
OBJS = superiotool.o serverengines.o ali.o exar.o fintek.o ite.o nsc.o \
nuvoton.o smsc.o winbond.o infineon.o
OS_ARCH = $(shell uname)
ifeq ($(OS_ARCH), Darwin)

97
util/superiotool/exar.c Normal file
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@ -0,0 +1,97 @@
/*
* This file is part of the superiotool project.
*
* Copyright (C) 2016 Derek Waldner
* Copyright (C) 2016 Sencore Inc <opensource@sencore.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include "superiotool.h"
#define DEVICE_ID_BYTE1_REG 0x20
#define DEVICE_ID_BYTE2_REG 0x21
#define VENDOR_ID_BYTE1_REG 0x23
#define VENDOR_ID_BYTE2_REG 0x24
#define EXAR_VENDOR_ID 0xa813
static const struct superio_registers reg_table[] = {
{0x8403, "XR28V384", {
/* We assume reserved bits are read as 0. */
{NOLDN, NULL,
{0x02,0x07,0x20,0x21,0x23,0x24,0x25,0x26,0x27,EOT},
{0x00,0x00,0x03,0x84,0x13,0xa8,0x00,0x00,0x00,EOT}},
{0x0, "COM1",
{0x30,0x60,0x61,0x70,0xf0,0xf1,0xf4,0xf5,0xf6,EOT},
{0x01,0x03,0xf8,0x03,0x00,0x44,0x00,0x00,0x00,EOT}},
{0x1, "COM2",
{0x30,0x60,0x61,0x70,0xf0,0xf4,0xf5,0xf6,EOT},
{0x01,0x02,0xf8,0x04,0x00,0x00,0x00,0x00,EOT}},
{0x2, "COM3",
{0x30,0x60,0x61,0x70,0xf0,0xf4,0xf5,0xf6,EOT},
{0x01,0x03,0xe8,0x05,0x00,0x00,0x00,0x00,EOT}},
{0x3, "COM4",
{0x30,0x60,0x61,0x70,0xf0,0xf4,0xf5,0xf6,EOT},
{0x01,0x02,0xe8,0x09,0x00,0x00,0x00,0x00,EOT}},
{0x8, "WDT",
{0x30,0x60,0x61,0x70,0xf0,0xf1,EOT},
{0x01,0x04,0x42,0x00,0x02,0x0a,EOT}},
{EOT}}},
{EOT}
};
void enter_conf_mode_exar(uint16_t port)
{
OUTB(0x67, port);
OUTB(0x67, port);
}
void exit_conf_mode_exar(uint16_t port)
{
OUTB(0xaa, port);
}
void probe_idregs_exar(uint16_t port)
{
uint16_t vid, did;
probing_for("Exar", "", port);
enter_conf_mode_exar(port);
did = regval(port, DEVICE_ID_BYTE1_REG);
did |= (regval(port, DEVICE_ID_BYTE2_REG) << 8);
vid = regval(port, VENDOR_ID_BYTE1_REG);
vid |= (regval(port, VENDOR_ID_BYTE2_REG) << 8);
if (vid != EXAR_VENDOR_ID || superio_unknown(reg_table, did)) {
if (verbose)
printf(NOTFOUND "vid=0x%04x, id=0x%04x\n", vid, did);
exit_conf_mode_exar(port);
return;
}
printf("Found Exar %s (vid=0x%04x, id=0x%04x) at 0x%x\n",
get_superio_name(reg_table, did), vid, did, port);
chip_found = 1;
dump_superio("Exar", reg_table, port, did, LDN_SEL);
exit_conf_mode_exar(port);
}
void print_exar_chips(void)
{
print_vendor_chips("Exar", reg_table);
}

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@ -191,6 +191,10 @@ void print_amd_chips(void);
void probe_idregs_serverengines(uint16_t port);
void print_serverengines_chips(void);
/* exar.c */
void probe_idregs_exar(uint16_t port);
void print_exar_chips(void);
/* fintek.c */
void probe_idregs_fintek(uint16_t port);
void probe_idregs_fintek_alternative(uint16_t port);
@ -232,6 +236,7 @@ static const struct {
int ports[MAXNUMPORTS]; /* Signed, as we need EOT. */
} superio_ports_table[] = {
{probe_idregs_ali, {0x3f0, 0x370, EOT}},
{probe_idregs_exar, {0x2e, 0x4e, EOT}},
{probe_idregs_fintek, {0x2e, 0x4e, EOT}},
{probe_idregs_fintek_alternative, {0x2e, 0x4e, EOT}},
/* Only use 0x370 for ITE, but 0x3f0 or 0x3bd would also be valid. */
@ -256,6 +261,7 @@ static const struct {
void (*print_list) (void);
} vendor_print_functions[] = {
{print_ali_chips},
{print_exar_chips},
{print_fintek_chips},
{print_ite_chips},
{print_nsc_chips},