| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2010 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. |
| */ |
| |
| #include <console/console.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <arch/io.h> |
| #include <cpu/x86/msr.h> |
| #include <cpu/amd/mtrr.h> |
| #include <device/pci_def.h> |
| #include "southbridge/amd/sb700/sb700.h" |
| #include "southbridge/amd/sb700/smbus.h" |
| |
| void set_pcie_dereset(void); |
| void set_pcie_reset(void); |
| u8 is_dev3_present(void); |
| |
| static void pcie_rst_toggle(u8 val) { |
| u8 byte; |
| |
| byte = pm_ioread(0x8d); |
| byte &= ~(3 << 1); |
| pm_iowrite(0x8d, byte); |
| |
| byte = pm_ioread(0x94); |
| /* Output enable */ |
| byte &= ~(3 << 2); |
| /* Toggle GPM8, GPM9 */ |
| byte &= ~(3 << 0); |
| byte |= val; |
| pm_iowrite(0x94, byte); |
| } |
| |
| void set_pcie_dereset() |
| { |
| pcie_rst_toggle(0x3); |
| } |
| |
| void set_pcie_reset() |
| { |
| pcie_rst_toggle(0x0); |
| } |
| |
| #if 0 /* not tested yet */ |
| /******************************************************** |
| * mahogany uses SB700 GPIO9 to detect IDE_DMA66. |
| * IDE_DMA66 is routed to GPIO 9. So we read Gpio 9 to |
| * get the cable type, 40 pin or 80 pin? |
| ********************************************************/ |
| static void get_ide_dma66(void) |
| { |
| u8 byte; |
| /*u32 sm_dev, ide_dev; */ |
| device_t sm_dev, ide_dev; |
| |
| sm_dev = dev_find_slot(0, PCI_DEVFN(0x14, 0)); |
| |
| byte = pci_read_config8(sm_dev, 0xA9); |
| byte |= (1 << 5); /* Set Gpio9 as input */ |
| pci_write_config8(sm_dev, 0xA9, byte); |
| |
| ide_dev = dev_find_slot(0, PCI_DEVFN(0x14, 1)); |
| byte = pci_read_config8(ide_dev, 0x56); |
| byte &= ~(7 << 0); |
| if ((1 << 5) & pci_read_config8(sm_dev, 0xAA)) |
| byte |= 2 << 0; /* mode 2 */ |
| else |
| byte |= 5 << 0; /* mode 5 */ |
| pci_write_config8(ide_dev, 0x56, byte); |
| } |
| #endif /* get_ide_dma66 */ |
| |
| u8 is_dev3_present(void) |
| { |
| return 0; |
| } |
| |
| /************************************************* |
| * enable the dedicated function in mahogany board. |
| * This function called early than rs780_enable. |
| *************************************************/ |
| static void mainboard_enable(device_t dev) |
| { |
| printk(BIOS_INFO, "Mainboard 939A785GMH/128M Enable. dev=0x%p\n", dev); |
| |
| set_pcie_dereset(); |
| /* get_ide_dma66(); */ |
| } |
| |
| struct chip_operations mainboard_ops = { |
| .enable_dev = mainboard_enable, |
| }; |
| |
| /* override the default SATA PHY setup */ |
| void sb7xx_51xx_setup_sata_phys(struct device *dev) { |
| /* RPR7.6.1 Program the PHY Global Control to 0x2C00 */ |
| pci_write_config16(dev, 0x86, 0x2c00); |
| |
| /* RPR7.6.2 SATA GENI PHY ports setting */ |
| pci_write_config32(dev, 0x88, 0x01B48016); |
| pci_write_config32(dev, 0x8c, 0x01B48016); |
| pci_write_config32(dev, 0x90, 0x01B48016); |
| pci_write_config32(dev, 0x94, 0x01B48016); |
| pci_write_config32(dev, 0x98, 0x01B48016); |
| pci_write_config32(dev, 0x9C, 0x01B48016); |
| |
| /* RPR7.6.3 SATA GEN II PHY port setting for port [0~5]. */ |
| pci_write_config16(dev, 0xA0, 0xA07A); |
| pci_write_config16(dev, 0xA2, 0xA07A); |
| pci_write_config16(dev, 0xA4, 0xA07A); |
| pci_write_config16(dev, 0xA6, 0xA07A); |
| pci_write_config16(dev, 0xA8, 0xA07A); |
| pci_write_config16(dev, 0xAA, 0xA0FF); |
| } |