diff options
Diffstat (limited to 'src/southbridge/amd/cimx/sb700/early.c')
| -rw-r--r-- | src/southbridge/amd/cimx/sb700/early.c | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/src/southbridge/amd/cimx/sb700/early.c b/src/southbridge/amd/cimx/sb700/early.c new file mode 100644 index 0000000000..c899320c48 --- /dev/null +++ b/src/southbridge/amd/cimx/sb700/early.c @@ -0,0 +1,102 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 Advanced Micro Devices, 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + + +//#include <config.h> +#include <stdint.h> +#include <device/pci_ids.h> +#include <arch/io.h> /* inl, outl */ +#include <arch/romcc_io.h> /* device_t */ +#include "Platform.h" +#include "sb_cimx.h" +#include "sb700_cfg.h" /*sb700_cimx_config*/ +#include <console/console.h> +#include <console/loglevel.h> +#include "smbus.h" + + +#if CONFIG_RAMINIT_SYSINFO == 1 +/** + * @brief Get SouthBridge device number + * @param[in] bus target bus number + * @return southbridge device number + */ +u32 get_sbdn(u32 bus) +{ + device_t dev; + + printk(BIOS_SPEW, "SB700 - Early.c - %s - Start.\n", __func__); + dev = pci_locate_device_on_bus( + PCI_ID(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SB700_SM), + bus); + + printk(BIOS_SPEW, "SB700 - Early.c - %s - End.\n", __func__); + return (dev >> 15) & 0x1f; +} +#endif + +/** + * @brief Enable A-Link Express Configuration DMA Access. + */ + +/** + * @brief South Bridge CIMx romstage entry, + * wrapper of sbPowerOnInit entry point. + */ +void sb_Poweron_Init(void) +{ + AMDSBCFG sb_early_cfg; + + printk(BIOS_SPEW, "cimx/sb700 early.c, %s() Start:\n", __func__); + /* Enable A-Link Base Address */ + //sb_enable_alink (); + + sb700_cimx_config(&sb_early_cfg); + sbPowerOnInit(&sb_early_cfg); + printk(BIOS_SPEW, "cimx/sb700 early.c, %s() End\n", __func__); +} + +void sb7xx_51xx_enable_wideio(u8 wio_index, u16 base) +{ + /* TODO: Now assume wio_index=0 */ + device_t dev; + u8 reg8; + + //dev = pci_locate_device(PCI_ID(0x1002, 0x439d), 0); /* LPC Controller */ + dev = PCI_DEV(0, 0x14, 3); /* LPC Controller */ + pci_write_config32(dev, 0x64, base); + reg8 = pci_read_config8(dev, 0x48); + reg8 |= 1 << 2; + pci_write_config8(dev, 0x48, reg8); +} + +void sb7xx_51xx_disable_wideio(u8 wio_index) +{ + /* TODO: Now assume wio_index=0 */ + device_t dev; + u8 reg8; + + //dev = pci_locate_device(PCI_ID(0x1002, 0x439d), 0); /* LPC Controller */ + dev = PCI_DEV(0, 0x14, 3); /* LPC Controller */ + pci_write_config32(dev, 0x64, 0); + reg8 = pci_read_config8(dev, 0x48); + reg8 &= ~(1 << 2); + pci_write_config8(dev, 0x48, reg8); +} + |