diff options
Diffstat (limited to 'src/southbridge/intel/i82801ix')
| -rw-r--r-- | src/southbridge/intel/i82801ix/Kconfig | 1 | ||||
| -rw-r--r-- | src/southbridge/intel/i82801ix/early_smbus.c | 2 | ||||
| -rw-r--r-- | src/southbridge/intel/i82801ix/i82801ix.h | 16 | ||||
| -rw-r--r-- | src/southbridge/intel/i82801ix/smbus.c | 3 | ||||
| -rw-r--r-- | src/southbridge/intel/i82801ix/smbus.h | 140 |
5 files changed, 4 insertions, 158 deletions
diff --git a/src/southbridge/intel/i82801ix/Kconfig b/src/southbridge/intel/i82801ix/Kconfig index e4d1f916f1..6879bce803 100644 --- a/src/southbridge/intel/i82801ix/Kconfig +++ b/src/southbridge/intel/i82801ix/Kconfig @@ -17,6 +17,7 @@ config SOUTHBRIDGE_INTEL_I82801IX bool select SOUTHBRIDGE_INTEL_COMMON + select SOUTHBRIDGE_INTEL_COMMON_SMBUS select IOAPIC select HAVE_USBDEBUG select HAVE_HARD_RESET diff --git a/src/southbridge/intel/i82801ix/early_smbus.c b/src/southbridge/intel/i82801ix/early_smbus.c index 31b33e92d9..0e4195c198 100644 --- a/src/southbridge/intel/i82801ix/early_smbus.c +++ b/src/southbridge/intel/i82801ix/early_smbus.c @@ -19,8 +19,8 @@ #include <console/console.h> #include <device/pci_ids.h> #include <device/pci_def.h> +#include <southbridge/intel/common/smbus.h> #include "i82801ix.h" -#include "smbus.h" void enable_smbus(void) { diff --git a/src/southbridge/intel/i82801ix/i82801ix.h b/src/southbridge/intel/i82801ix/i82801ix.h index af4efcdb30..38dfa385ad 100644 --- a/src/southbridge/intel/i82801ix/i82801ix.h +++ b/src/southbridge/intel/i82801ix/i82801ix.h @@ -154,22 +154,6 @@ #define SMB_SMI_EN (1 << 1) #define HST_EN (1 << 0) -/* SMBus I/O bits. */ -#define SMBHSTSTAT 0x0 -#define SMBHSTCTL 0x2 -#define SMBHSTCMD 0x3 -#define SMBXMITADD 0x4 -#define SMBHSTDAT0 0x5 -#define SMBHSTDAT1 0x6 -#define SMBBLKDAT 0x7 -#define SMBTRNSADD 0x9 -#define SMBSLVDATA 0xa -#define SMLINK_PIN_CTL 0xe -#define SMBUS_PIN_CTL 0xf - -#define SMBUS_TIMEOUT (10 * 1000 * 100) - - #define RCBA8(x) *((volatile u8 *)(DEFAULT_RCBA + x)) #define RCBA16(x) *((volatile u16 *)(DEFAULT_RCBA + x)) #define RCBA32(x) *((volatile u32 *)(DEFAULT_RCBA + x)) diff --git a/src/southbridge/intel/i82801ix/smbus.c b/src/southbridge/intel/i82801ix/smbus.c index 211372237f..ccfcddbec2 100644 --- a/src/southbridge/intel/i82801ix/smbus.c +++ b/src/southbridge/intel/i82801ix/smbus.c @@ -22,7 +22,8 @@ #include <device/pci_ids.h> #include <device/pci_ops.h> #include <arch/io.h> -#include "smbus.h" +#include <southbridge/intel/common/smbus.h> +#include "i82801ix.h" static void pch_smbus_init(device_t dev) { diff --git a/src/southbridge/intel/i82801ix/smbus.h b/src/southbridge/intel/i82801ix/smbus.h deleted file mode 100644 index bcc758700d..0000000000 --- a/src/southbridge/intel/i82801ix/smbus.h +++ /dev/null @@ -1,140 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2005 Yinghai Lu <yinghailu@gmail.com> - * Copyright (C) 2009 coresystems GmbH - * - * 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. - */ - -#include <device/smbus_def.h> -#include "i82801ix.h" - -static void smbus_delay(void) -{ - inb(0x80); -} - -static int smbus_wait_until_ready(u16 smbus_base) -{ - unsigned loops = SMBUS_TIMEOUT; - unsigned char byte; - do { - smbus_delay(); - if (--loops == 0) - break; - byte = inb(smbus_base + SMBHSTSTAT); - } while (byte & 1); - return loops ? 0 : -1; -} - -static int smbus_wait_until_done(u16 smbus_base) -{ - unsigned loops = SMBUS_TIMEOUT; - unsigned char byte; - do { - smbus_delay(); - if (--loops == 0) - break; - byte = inb(smbus_base + SMBHSTSTAT); - } while ((byte & 1) || (byte & ~((1 << 6) | (1 << 0))) == 0); - return loops ? 0 : -1; -} - -static int do_smbus_read_byte(unsigned smbus_base, unsigned device, unsigned address) -{ - unsigned char global_status_register; - unsigned char byte; - - if (smbus_wait_until_ready(smbus_base) < 0) { - return SMBUS_WAIT_UNTIL_READY_TIMEOUT; - } - /* Setup transaction */ - /* Disable interrupts */ - outb(inb(smbus_base + SMBHSTCTL) & (~1), smbus_base + SMBHSTCTL); - /* Set the device I'm talking too */ - outb(((device & 0x7f) << 1) | 1, smbus_base + SMBXMITADD); - /* Set the command/address... */ - outb(address & 0xff, smbus_base + SMBHSTCMD); - /* Set up for a byte data read */ - outb((inb(smbus_base + SMBHSTCTL) & 0xe3) | (0x2 << 2), - (smbus_base + SMBHSTCTL)); - /* Clear any lingering errors, so the transaction will run */ - outb(inb(smbus_base + SMBHSTSTAT), smbus_base + SMBHSTSTAT); - - /* Clear the data byte... */ - outb(0, smbus_base + SMBHSTDAT0); - - /* Start the command */ - outb((inb(smbus_base + SMBHSTCTL) | 0x40), - smbus_base + SMBHSTCTL); - - /* Poll for transaction completion */ - if (smbus_wait_until_done(smbus_base) < 0) { - return SMBUS_WAIT_UNTIL_DONE_TIMEOUT; - } - - global_status_register = inb(smbus_base + SMBHSTSTAT); - - /* Ignore the "In Use" status... */ - global_status_register &= ~(3 << 5); - - /* Read results of transaction */ - byte = inb(smbus_base + SMBHSTDAT0); - if (global_status_register != (1 << 1)) { - return SMBUS_ERROR; - } - return byte; -} - -#ifndef __PRE_RAM__ -static int do_smbus_write_byte(unsigned smbus_base, unsigned device, unsigned address, unsigned data) -{ - unsigned char global_status_register; - - if (smbus_wait_until_ready(smbus_base) < 0) - return SMBUS_WAIT_UNTIL_READY_TIMEOUT; - - /* Setup transaction */ - /* Disable interrupts */ - outb(inb(smbus_base + SMBHSTCTL) & (~1), smbus_base + SMBHSTCTL); - /* Set the device I'm talking too */ - outb(((device & 0x7f) << 1) & ~0x01, smbus_base + SMBXMITADD); - /* Set the command/address... */ - outb(address & 0xff, smbus_base + SMBHSTCMD); - /* Set up for a byte data read */ - outb((inb(smbus_base + SMBHSTCTL) & 0xe3) | (0x2 << 2), - (smbus_base + SMBHSTCTL)); - /* Clear any lingering errors, so the transaction will run */ - outb(inb(smbus_base + SMBHSTSTAT), smbus_base + SMBHSTSTAT); - - /* Clear the data byte... */ - outb(data, smbus_base + SMBHSTDAT0); - - /* Start the command */ - outb((inb(smbus_base + SMBHSTCTL) | 0x40), - smbus_base + SMBHSTCTL); - - /* Poll for transaction completion */ - if (smbus_wait_until_done(smbus_base) < 0) - return SMBUS_WAIT_UNTIL_DONE_TIMEOUT; - - global_status_register = inb(smbus_base + SMBHSTSTAT); - - /* Ignore the "In Use" status... */ - global_status_register &= ~(3 << 5); - - /* Read results of transaction */ - if (global_status_register != (1 << 1)) - return SMBUS_ERROR; - - return 0; -} -#endif |