diff options
Diffstat (limited to 'src/southbridge/intel/fsp_bd82x6x/bootblock.c')
-rw-r--r-- | src/southbridge/intel/fsp_bd82x6x/bootblock.c | 98 |
1 files changed, 0 insertions, 98 deletions
diff --git a/src/southbridge/intel/fsp_bd82x6x/bootblock.c b/src/southbridge/intel/fsp_bd82x6x/bootblock.c deleted file mode 100644 index 8f6ddbc67f..0000000000 --- a/src/southbridge/intel/fsp_bd82x6x/bootblock.c +++ /dev/null @@ -1,98 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2011 Google Inc. - * - * 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. - * - * 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. - */ - -#include <arch/io.h> -#include <cpu/x86/tsc.h> -#include "pch.h" - -static void store_initial_timestamp(void) -{ - /* On Cougar Point / Panther Point, there are two 32bit scratchpad registers: - * D0:F0 0xdc (SKPAD) - * D31:F2 0xd0 (SATA SP) - */ - tsc_t tsc = rdtsc(); - /* - * The scratchpad register at D0F0DC is used by the FSP. The system will - * not boot if the scratchpad register is not 0. Because of this we're - * only storing the low nibble of the high dword of the tsc. Even this - * is probably 0 by the time we get here, so storing 64 bits is overkill.S - */ - pci_write_config32(PCI_DEV(0, 0x1f, 2), 0xd0, tsc.lo >> 4 | tsc.hi << 28); -} - -/* - * Enable Prefetching and Caching. - */ -static void enable_spi_prefetch(void) -{ - u8 reg8; - pci_devfn_t dev; - - dev = PCI_DEV(0, 0x1f, 0); - - reg8 = pci_read_config8(dev, 0xdc); - reg8 &= ~(3 << 2); - reg8 |= (2 << 2); /* Prefetching and Caching Enabled */ - pci_write_config8(dev, 0xdc, reg8); -} - -static void enable_port80_on_lpc(void) -{ - pci_devfn_t dev = PCI_DEV(0, 0x1f, 0); - - /* Enable port 80 POST on LPC */ - pci_write_config32(dev, RCBA, (uintptr_t)DEFAULT_RCBA | 1); - volatile u32 *gcs = (volatile u32 *)(DEFAULT_RCBA + GCS); - u32 reg32 = *gcs; - reg32 = reg32 & ~0x04; - *gcs = reg32; -} - -static void set_spi_speed(void) -{ - u32 fdod; - u8 ssfc; - - /* Observe SPI Descriptor Component Section 0 */ - RCBA32(0x38b0) = 0x1000; - - /* Extract the Write/Erase SPI Frequency from descriptor */ - fdod = RCBA32(0x38b4); - fdod >>= 24; - fdod &= 7; - - /* Set Software Sequence frequency to match */ - ssfc = RCBA8(0x3893); - ssfc &= ~7; - ssfc |= fdod; - RCBA8(0x3893) = ssfc; -} - -static void bootblock_southbridge_init(void) -{ - store_initial_timestamp(); - - enable_spi_prefetch(); - enable_port80_on_lpc(); - set_spi_speed(); - - /* Enable upper 128bytes of CMOS */ - RCBA32(RC) = (1 << 2); -} |