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authorJoseph Smith <joe@smittys.pointclark.net>2008-04-01 02:42:52 +0000
committerEd Swierk <eswierk@arastra.com>2008-04-01 02:42:52 +0000
commit868de9838c8ea97b8d27a0bc97828f1964536084 (patch)
treec6147224295c7aca0a60aa508cb887b7d3aa593b /src/southbridge/intel/i82801db/i82801db_early_smbus.c
parentc4e052cd5089019dc67b4fa176bca6d8d19de30d (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.c148
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;
-}
-