From fb433bea6a886e8c00620bf4c799feae0d6c7072 Mon Sep 17 00:00:00 2001 From: Stefan Reinauer Date: Wed, 12 Jan 2011 21:09:25 +0000 Subject: drop unused files Signed-off-by: Stefan Reinauer Acked-by: Stefan Reinauer git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6249 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1 --- src/southbridge/amd/cs5536/smbus2.h | 317 ------------------------------------ 1 file changed, 317 deletions(-) delete mode 100644 src/southbridge/amd/cs5536/smbus2.h (limited to 'src/southbridge/amd/cs5536') diff --git a/src/southbridge/amd/cs5536/smbus2.h b/src/southbridge/amd/cs5536/smbus2.h deleted file mode 100644 index dea08a437c..0000000000 --- a/src/southbridge/amd/cs5536/smbus2.h +++ /dev/null @@ -1,317 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2007 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; 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#define SMBUS_ERROR -1 -#define SMBUS_WAIT_UNTIL_READY_TIMEOUT -2 -#define SMBUS_WAIT_UNTIL_DONE_TIMEOUT -3 - -#define SMB_SDA 0x00 -#define SMB_STS 0x01 -#define SMB_CTRL_STS 0x02 -#define SMB_CTRL1 0x03 -#define SMB_ADD 0x04 -#define SMB_CTRL2 0x05 -#define SMB_CTRL3 0x06 - -#define SMB_STS_SLVSTP (0x01 << 7) -#define SMB_STS_SDAST (0x01 << 6) -#define SMB_STS_BER (0x01 << 5) -#define SMB_STS_NEGACK (0x01 << 4) -#define SMB_STS_STASTR (0x01 << 3) -#define SMB_STS_NMATCH (0x01 << 2) -#define SMB_STS_MASTER (0x01 << 1) -#define SMB_STS_XMIT (0x01 << 0) - -#define SMB_CSTS_TGSCL (0x01 << 5) -#define SMB_CSTS_TSDA (0x01 << 4) -#define SMB_CSTS_GCMTCH (0x01 << 3) -#define SMB_CSTS_MATCH (0x01 << 2) -#define SMB_CSTS_BB (0x01 << 1) -#define SMB_CSTS_BUSY (0x01 << 0) - -#define SMB_CTRL1_STASTRE (0x01 << 7) -#define SMB_CTRL1_NMINTE (0x01 << 6) -#define SMB_CTRL1_GCMEN (0x01 << 5) -#define SMB_CTRL1_ACK (0x01 << 4) -#define SMB_CTRL1_RSVD (0x01 << 3) -#define SMB_CTRL1_INTEN (0x01 << 2) -#define SMB_CTRL1_STOP (0x01 << 1) -#define SMB_CTRL1_START (0x01 << 0) - -#define SMB_ADD_SAEN (0x01 << 7) - -#define SMB_CTRL2_ENABLE 0x01 - -#define SMBUS_TIMEOUT (100*1000*10) -#define SMBUS_STATUS_MASK 0xfbff - -static void smbus_delay(void) -{ - inb(0x80); -} - -static int smbus_wait(unsigned smbus_io_base) -{ - unsigned long loops = SMBUS_TIMEOUT; - unsigned char val; - - do { - smbus_delay(); - val = inb(smbus_io_base + SMB_STS); - if ((val & SMB_STS_SDAST) != 0) - break; - if (val & (SMB_STS_BER | SMB_STS_NEGACK)) { - printk(BIOS_DEBUG, "SMBUS WAIT ERROR %x\n", val); - return SMBUS_ERROR; - } - } while (--loops); - - outb(0, smbus_io_base + SMB_STS); - return loops ? 0 : SMBUS_WAIT_UNTIL_READY_TIMEOUT; -} - -static int smbus_write(unsigned smbus_io_base, unsigned char byte) -{ - - outb(byte, smbus_io_base + SMB_SDA); - return smbus_wait(smbus_io_base); -} - -/* generate a smbus start condition */ -static int smbus_start_condition(unsigned smbus_io_base) -{ - unsigned char val; - - /* issue a START condition */ - val = inb(smbus_io_base + SMB_CTRL1); - outb(val | SMB_CTRL1_START, smbus_io_base + SMB_CTRL1); - - /* check for bus conflict */ - val = inb(smbus_io_base + SMB_STS); - if ((val & SMB_STS_BER) != 0) - return SMBUS_ERROR; - - return smbus_wait(smbus_io_base); -} - -static int smbus_check_stop_condition(unsigned smbus_io_base) -{ - unsigned char val; - unsigned long loops; - loops = SMBUS_TIMEOUT; - /* check for SDA status */ - do { - smbus_delay(); - val = inb(smbus_io_base + SMB_CTRL1); - if ((val & SMB_CTRL1_STOP) == 0) { - break; - } - } while (--loops); - return loops ? 0 : SMBUS_WAIT_UNTIL_READY_TIMEOUT; - - /* Make sure everything is cleared and ready to go */ - - val = inb(smbus_io_base + SMB_CTRL1); - outb(val & ~(SMB_CTRL1_STASTRE | SMB_CTRL1_NMINTE), - smbus_io_base + SMB_CTRL1); - - outb(SMB_STS_BER | SMB_STS_NEGACK | SMB_STS_STASTR, - smbus_io_base + SMB_STS); - - val = inb(smbus_io_base + SMB_CTRL_STS); - outb(val | SMB_CSTS_BB, smbus_io_base + SMB_CTRL_STS); -} - -static int smbus_stop_condition(unsigned smbus_io_base) -{ - unsigned char val; - val = inb(smbus_io_base + SMB_CTRL1); - outb(SMB_CTRL1_STOP, smbus_io_base + SMB_CTRL1); - - return 0; -} - -static int smbus_ack(unsigned smbus_io_base, int state) -{ - unsigned char val = inb(smbus_io_base + SMB_CTRL1); - - if (state) - outb(val | SMB_CTRL1_ACK, smbus_io_base + SMB_CTRL1); - else - outb(val & ~SMB_CTRL1_ACK, smbus_io_base + SMB_CTRL1); - - return 0; -} - -static int smbus_send_slave_address(unsigned smbus_io_base, - unsigned char device) -{ - unsigned char val; - - /* send the slave address */ - outb(device, smbus_io_base + SMB_SDA); - - /* check for bus conflict and NACK */ - val = inb(smbus_io_base + SMB_STS); - if (((val & SMB_STS_BER) != 0) || ((val & SMB_STS_NEGACK) != 0)) { - printk(BIOS_DEBUG, "SEND SLAVE ERROR (%x)\n", val); - return SMBUS_ERROR; - } - return smbus_wait(smbus_io_base); -} - -static int smbus_send_command(unsigned smbus_io_base, unsigned char command) -{ - unsigned char val; - - /* send the command */ - outb(command, smbus_io_base + SMB_SDA); - - /* check for bus conflict and NACK */ - val = inb(smbus_io_base + SMB_STS); - if (((val & SMB_STS_BER) != 0) || ((val & SMB_STS_NEGACK) != 0)) - return SMBUS_ERROR; - - return smbus_wait(smbus_io_base); -} - -static void _doread(unsigned smbus_io_base, unsigned char device, - unsigned char address, unsigned char *data, int count) -{ - int ret; - int index = 0; - unsigned char val; - - if ((ret = smbus_check_stop_condition(smbus_io_base))) - goto err; - - index++; - - if ((ret = smbus_start_condition(smbus_io_base))) - goto err; - - index++; /* 2 */ - if ((ret = smbus_send_slave_address(smbus_io_base, device))) - goto err; - - index++; - if ((ret = smbus_send_command(smbus_io_base, address))) - goto err; - - index++; - if ((ret = smbus_start_condition(smbus_io_base))) - goto err; - - /* Clear the ack for multiple byte reads */ - smbus_ack(smbus_io_base, (count == 1) ? 1 : 0); - - index++; - if ((ret = smbus_send_slave_address(smbus_io_base, device | 0x01))) - goto err; - - while (count) { - /* Set the ACK if this is the next to last byte */ - smbus_ack(smbus_io_base, (count == 2) ? 1 : 0); - - /* Set the stop bit if this is the last byte to read */ - - if (count == 1) - smbus_stop_condition(smbus_io_base); - - val = inb(smbus_io_base + SMB_SDA); - *data++ = val; - - if (count > 1) { - ret = smbus_wait(smbus_io_base); - if (ret) - return; - } - - count--; - } - - return; - - err: - printk(BIOS_DEBUG, "SMBUS READ ERROR (%d): %d\n", index, ret); -} - -static inline unsigned char do_smbus_read_byte(unsigned smbus_io_base, - unsigned char device, unsigned char address) -{ - unsigned char val = 0; - _doread(smbus_io_base, device, address, &val, sizeof(val)); - return val; -} - -static inline unsigned short do_smbus_read_word(unsigned smbus_io_base, - unsigned char device, unsigned char address) -{ - unsigned short val = 0; - _doread(smbus_io_base, device, address, (unsigned char *)&val, - sizeof(val)); - return val; -} - -static int _dowrite(unsigned smbus_io_base, unsigned char device, - unsigned char address, unsigned char *data, int count) -{ - - int ret; - - if ((ret = smbus_check_stop_condition(smbus_io_base))) - goto err; - - if ((ret = smbus_start_condition(smbus_io_base))) - goto err; - - if ((ret = smbus_send_slave_address(smbus_io_base, device))) - goto err; - - if ((ret = smbus_send_command(smbus_io_base, address))) - goto err; - - while (count) { - if ((ret = smbus_write(smbus_io_base, *data++))) - goto err; - count--; - } - - smbus_stop_condition(smbus_io_base); - return 0; - - err: - printk(BIOS_DEBUG, "SMBUS WRITE ERROR: %d\n", ret); - return -1; -} - -static inline int do_smbus_write_byte(unsigned smbus_io_base, - unsigned char device, unsigned char address, unsigned char data) -{ - return _dowrite(smbus_io_base, device, address, - (unsigned char *)&data, 1); -} - -static inline int do_smbus_write_word(unsigned smbus_io_base, - unsigned char device, unsigned char address, unsigned short data) -{ - return _dowrite(smbus_io_base, device, address, (unsigned char *)&data, - 2); -} -- cgit v1.2.3