diff options
author | Joseph Smith <joe@smittys.pointclark.net> | 2008-04-01 02:42:52 +0000 |
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committer | Ed Swierk <eswierk@arastra.com> | 2008-04-01 02:42:52 +0000 |
commit | 868de9838c8ea97b8d27a0bc97828f1964536084 (patch) | |
tree | c6147224295c7aca0a60aa508cb887b7d3aa593b /src/southbridge/intel/i82801db/i82801db_early_smbus.c | |
parent | c4e052cd5089019dc67b4fa176bca6d8d19de30d (diff) |
Removal of i82801DB (ICH4)
There are no boards that use the i82801DB (ICH4). The code does NOT work.
Signed-off-by: Joseph Smith <joe@smittys.pointclark.net>
Acked-by: Corey Osgood <corey.osgood@gmail.com>
Acked-by: Ed Swierk <eswierk@arastra.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3206 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/southbridge/intel/i82801db/i82801db_early_smbus.c')
-rw-r--r-- | src/southbridge/intel/i82801db/i82801db_early_smbus.c | 148 |
1 files changed, 0 insertions, 148 deletions
diff --git a/src/southbridge/intel/i82801db/i82801db_early_smbus.c b/src/southbridge/intel/i82801db/i82801db_early_smbus.c deleted file mode 100644 index dca12d1931..0000000000 --- a/src/southbridge/intel/i82801db/i82801db_early_smbus.c +++ /dev/null @@ -1,148 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * 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 - */ - -#include "i82801db_smbus.h" - -#define SMBUS_IO_BASE 0x0f00 - -static void enable_smbus(void) -{ - device_t dev = PCI_DEV(0x0, 0x1f, 0x3); - - print_spew("SMBus controller enabled\r\n"); - - pci_write_config32(dev, 0x20, SMBUS_IO_BASE | 1); - /* Set smbus enable */ - pci_write_config8(dev, 0x40, 1); - /* Set smbus iospace enable */ - pci_write_config8(dev, 0x4, 1); - /* SMBALERT_DIS */ - pci_write_config8(dev, 0x11, 4); - - /* Disable interrupt generation */ - outb(0, SMBUS_IO_BASE + SMBHSTCTL); - - /* clear any lingering errors, so the transaction will run */ - outb(inb(SMBUS_IO_BASE + SMBHSTSTAT), SMBUS_IO_BASE + SMBHSTSTAT); -} - -static int smbus_read_byte(unsigned device, unsigned address) -{ - return do_smbus_read_byte(SMBUS_IO_BASE, device, address); -} - -static void smbus_write_byte(unsigned device, unsigned address, unsigned char val) -{ - if (smbus_wait_until_ready(SMBUS_IO_BASE) < 0) { - return; - } - - print_debug("Unimplemented smbus_write_byte() called.\r\n"); - -#if 0 - /* setup transaction */ - /* disable interrupts */ - outw(inw(SMBUS_IO_BASE + SMBGCTL) & ~((1<<10)|(1<<9)|(1<<8)|(1<<4)), - SMBUS_IO_BASE + SMBGCTL); - /* set the device I'm talking too */ - outw(((device & 0x7f) << 1) | 1, SMBUS_IO_BASE + SMBHSTADDR); - outb(address & 0xFF, SMBUS_IO_BASE + SMBHSTCMD); - /* set up for a byte data write */ /* FIXME */ - outw((inw(SMBUS_IO_BASE + SMBGCTL) & ~7) | (0x1), SMBUS_IO_BASE + SMBGCTL); - /* clear any lingering errors, so the transaction will run */ - /* Do I need to write the bits to a 1 to clear an error? */ - outw(inw(SMBUS_IO_BASE + SMBGSTATUS), SMBUS_IO_BASE + SMBGSTATUS); - - /* clear the data word...*/ - outw(val, SMBUS_IO_BASE + SMBHSTDAT); - - /* start the command */ - outw((inw(SMBUS_IO_BASE + SMBGCTL) | (1 << 3)), SMBUS_IO_BASE + SMBGCTL); - - /* poll for transaction completion */ - smbus_wait_until_done(SMBUS_IO_BASE); -#endif - return; -} - -static int smbus_write_block(unsigned device, unsigned length, unsigned cmd, - unsigned data1, unsigned data2) -{ - unsigned char global_control_register; - unsigned char global_status_register; - unsigned char byte; - unsigned char stat; - int i; - - /* chear the PM timeout flags, SECOND_TO_STS */ - outw(inw(0x0400 + 0x66), 0x0400 + 0x66); - - if (smbus_wait_until_ready(SMBUS_IO_BASE) < 0) { - return -2; - } - - /* setup transaction */ - /* Obtain ownership */ - outb(inb(SMBUS_IO_BASE + SMBHSTSTAT), SMBUS_IO_BASE + SMBHSTSTAT); - for(stat=0;(stat&0x40)==0;) { - stat = inb(SMBUS_IO_BASE + SMBHSTSTAT); - } - /* clear the done bit */ - outb(0x80, SMBUS_IO_BASE + SMBHSTSTAT); - /* disable interrupts */ - outb(inb(SMBUS_IO_BASE + SMBHSTCTL) & (~1), SMBUS_IO_BASE + SMBHSTCTL); - - /* set the device I'm talking too */ - outb(((device & 0x7f) << 1), SMBUS_IO_BASE + SMBXMITADD); - - /* set the command address */ - outb(cmd & 0xFF, SMBUS_IO_BASE + SMBHSTCMD); - - /* set the block length */ - outb(length & 0xFF, SMBUS_IO_BASE + SMBHSTDAT0); - - /* try sending out the first byte of data here */ - byte=(data1>>(0))&0x0ff; - outb(byte,SMBUS_IO_BASE + SMBBLKDAT); - /* issue a block write command */ - outb((inb(SMBUS_IO_BASE + SMBHSTCTL) & 0xE3) | (0x5 << 2) | 0x40, - SMBUS_IO_BASE + SMBHSTCTL); - - for(i=0;i<length;i++) { - - /* poll for transaction completion */ - if (smbus_wait_until_blk_done(SMBUS_IO_BASE) < 0) { - return -3; - } - - /* load the next byte */ - if(i>3) - byte=(data2>>(i%4))&0x0ff; - else - byte=(data1>>(i))&0x0ff; - outb(byte,SMBUS_IO_BASE + SMBBLKDAT); - - /* clear the done bit */ - outb(inb(SMBUS_IO_BASE + SMBHSTSTAT), - SMBUS_IO_BASE + SMBHSTSTAT); - } - - print_debug("SMBUS Block complete\r\n"); - return 0; -} - |