diff options
Diffstat (limited to 'src/southbridge/nvidia/mcp55/bootblock.c')
| -rw-r--r-- | src/southbridge/nvidia/mcp55/bootblock.c | 37 |
1 files changed, 35 insertions, 2 deletions
diff --git a/src/southbridge/nvidia/mcp55/bootblock.c b/src/southbridge/nvidia/mcp55/bootblock.c index 139f93c99d..b2698496fa 100644 --- a/src/southbridge/nvidia/mcp55/bootblock.c +++ b/src/southbridge/nvidia/mcp55/bootblock.c @@ -1,7 +1,10 @@ /* * This file is part of the coreboot project. * - * Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de> + * Copyright (C) 2004 Tyan Computer + * Written by Yinghai Lu <yhlu@tyan.com> for Tyan Computer. + * Copyright (C) 2006,2007 AMD + * Written by Yinghai Lu <yinghai.lu@amd.com> for AMD. * * 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 @@ -18,7 +21,37 @@ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ -#include "southbridge/nvidia/mcp55/enable_rom.c" +#include <stdint.h> +#include <arch/io.h> +#include <arch/romcc_io.h> +#include "mcp55.h" + +static void mcp55_enable_rom(void) +{ + uint8_t byte; + uint16_t word; + device_t addr; + + /* Enable 4MB rom access at 0xFFC00000 - 0xFFFFFFFF */ +#if 0 + /* default MCP55 LPC single */ + addr = pci_locate_device(PCI_ID(0x10de, 0x0367), 0); +#else +// addr = pci_locate_device(PCI_ID(0x10de, 0x0360), 0); + addr = PCI_DEV(0, (MCP55_DEVN_BASE+1), 0); +#endif + + /* Set the 4MB enable bit bit */ + byte = pci_read_config8(addr, 0x88); + byte |= 0xff; //256K + pci_write_config8(addr, 0x88, byte); + byte = pci_read_config8(addr, 0x8c); + byte |= 0xff; //1M + pci_write_config8(addr, 0x8c, byte); + word = pci_read_config16(addr, 0x90); + word |= 0x7fff; //15M + pci_write_config16(addr, 0x90, word); +} static void bootblock_southbridge_init(void) { |