diff options
Diffstat (limited to 'src/superio/smsc/sio1036/sio1036_early_init.c')
-rw-r--r-- | src/superio/smsc/sio1036/sio1036_early_init.c | 96 |
1 files changed, 0 insertions, 96 deletions
diff --git a/src/superio/smsc/sio1036/sio1036_early_init.c b/src/superio/smsc/sio1036/sio1036_early_init.c deleted file mode 100644 index 47f317f042..0000000000 --- a/src/superio/smsc/sio1036/sio1036_early_init.c +++ /dev/null @@ -1,96 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2012 Advanced Micro Devices, Inc. - * - * 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; version 2 of the License. - * - * 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. - */ - -/* Pre-RAM driver for the SMSC KBC1100 Super I/O chip */ - -#include <arch/io.h> -#include <device/pnp_ops.h> -#include <stdint.h> - -#include "sio1036.h" - -static inline void sio1036_enter_conf_state(pnp_devfn_t dev) -{ - unsigned port = dev >> 8; - outb(0x55, port); -} - -static inline void sio1036_exit_conf_state(pnp_devfn_t dev) -{ - unsigned port = dev >> 8; - outb(0xaa, port); -} - -/* Detect SMSC SIO1036 LPC Debug Card status */ -static u8 detect_sio1036_chip(unsigned port) -{ - pnp_devfn_t dev = PNP_DEV(port, SIO1036_SP1); - unsigned data; - - sio1036_enter_conf_state(dev); - data = pnp_read_config(dev, 0x0D); - sio1036_exit_conf_state(dev); - - /* Detect SMSC SIO1036 chip */ - if (data == 0x82) { - /* Found SMSC SIO1036 chip */ - return 0; - } - else { - return 1; - }; -} - -void sio1036_enable_serial(pnp_devfn_t dev, u16 iobase) -{ - unsigned port = dev >> 8; - - if (detect_sio1036_chip(port) != 0) - return; - - sio1036_enter_conf_state(dev); - - /* Enable SMSC UART 0 */ - /* Valid configuration cycle */ - pnp_write_config(dev, 0x00, 0x28); - - /* PP power/mode/cr lock */ - pnp_write_config(dev, 0x01, 0x98 | LPT_POWER_DOWN); - pnp_write_config(dev, 0x02, 0x08 | UART_POWER_DOWN); - - /*Auto power management*/ - pnp_write_config(dev, 0x07, 0x00); - - /*ECP FIFO threhod */ - pnp_write_config(dev, 0x0A, 0x00 | IR_OUTPUT_MUX); - - /*GPIO direction register 2 */ - pnp_write_config(dev, 0x033, 0x00); - - /*UART Mode */ - pnp_write_config(dev, 0x0C, 0x02); - - /* GPIO polarity regisgter 2 */ - pnp_write_config(dev, 0x034, 0x00); - - /* Enable SMSC UART 0 */ - /*Set base io address */ - pnp_write_config(dev, 0x25, (u8)(iobase >> 2)); - - /* Set UART IRQ onto 0x04 */ - pnp_write_config(dev, 0x28, 0x04); - - sio1036_exit_conf_state(dev); -} |