diff options
Diffstat (limited to 'src/northbridge/intel/sch/port_access.c')
-rw-r--r-- | src/northbridge/intel/sch/port_access.c | 73 |
1 files changed, 0 insertions, 73 deletions
diff --git a/src/northbridge/intel/sch/port_access.c b/src/northbridge/intel/sch/port_access.c deleted file mode 100644 index 320c537069..0000000000 --- a/src/northbridge/intel/sch/port_access.c +++ /dev/null @@ -1,73 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2009-2010 iWave Systems - * - * 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. - */ - -// Use simple device model for this file even in ramstage -#define __SIMPLE_DEVICE__ - -#include <stdint.h> -#include <arch/io.h> -#include <device/pci_def.h> -#include <device/pnp_def.h> -#include <cpu/x86/lapic.h> -#include "sch.h" - -/* - * Restricted Access Regions: - * - * MCR - Message Control Register - * 31 24 16 8 4 0 - * ---------------------------------------------------------------------------- - * | | | Target | Write | | - * | Opcode | Port | register | byte | Reserved | - * | | | Address | Enables | | - * ---------------------------------------------------------------------------- - * - * MDR - Message Data Register - * 31 0 - * ---------------------------------------------------------------------------- - * | | - * | Data | - * | | - * ---------------------------------------------------------------------------- - */ - -#define MSG_OPCODE_READ 0xD0000000 -#define MSG_OPCODE_WRITE 0xE0000000 - -#define MCR 0xD0 -#define MDR 0xD4 - -int sch_port_access_read(int port, int reg, int bytes) -{ - pci_write_config32(PCI_DEV(0, 0, 0), MCR, - (MSG_OPCODE_READ | (port << 16) | (reg << 8))); - return pci_read_config32(PCI_DEV(0, 0, 0), MDR); -} - -void sch_port_access_write(int port, int reg, int bytes, long data) -{ - pci_write_config32(PCI_DEV(0, 0, 0), MDR, data); - pci_write_config32(PCI_DEV(0, 0, 0), MCR, - (MSG_OPCODE_WRITE | (port << 16) | (reg << 8))); - pci_read_config32(PCI_DEV(0, 0, 0), MDR); -} - -void sch_port_access_write_ram_cmd(int cmd, int port, int reg, int data) -{ - pci_write_config32(PCI_DEV(0, 0, 0), MDR, data); - pci_write_config32(PCI_DEV(0, 0, 0), MCR, - ((cmd << 24) | (port << 16) | (reg << 8))); - pci_read_config32(PCI_DEV(0, 0, 0), MDR); -} |