diff options
author | Martin Roth <gaumless@gmail.com> | 2017-10-15 14:20:28 -0600 |
---|---|---|
committer | Martin Roth <martinroth@google.com> | 2018-01-15 23:23:30 +0000 |
commit | 0026a53562595cafb466e4ff836c50a7817d5297 (patch) | |
tree | 4d5f4062df24cdaa0109e9bddac81c587ea36d0e /src/soc/intel/sch/smbus.h | |
parent | 732fb2ab5363968a12b2270319189c2a2a536a36 (diff) |
Intel sch board & chip: Remove - using LATE_CBMEM_INIT
All boards and chips that are still using LATE_CBMEM_INIT are being
removed as previously discussed.
If these boards and chips are updated to not use LATE_CBMEM_INIT, they
can be restored to the active codebase from the 4.7 branch.
chips:
soc/intel/sch
Mainboards:
mainboard/iwave/iWRainbowG6
Change-Id: Ida0570988a23fd0d13c6fcbe54f94ab0668c9eae
Signed-off-by: Martin Roth <gaumless@gmail.com>
Reviewed-on: https://review.coreboot.org/22027
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Diffstat (limited to 'src/soc/intel/sch/smbus.h')
-rw-r--r-- | src/soc/intel/sch/smbus.h | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/src/soc/intel/sch/smbus.h b/src/soc/intel/sch/smbus.h deleted file mode 100644 index 19d70b6451..0000000000 --- a/src/soc/intel/sch/smbus.h +++ /dev/null @@ -1,94 +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> - -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 to */ - 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; -} |