From 584ab84e92a4db3b96c253bb559d64a8f82cf367 Mon Sep 17 00:00:00 2001 From: Zheng Bao Date: Tue, 16 Mar 2010 01:53:10 +0000 Subject: The code can run on the Mahogany board, which is one of sample boards made by AMD. Its major features are: CPU: * AMD AM2+ * AMD Athlon 64 x2 * AMD Athlon 64 FX * AMD Athlon 64 * AMD Sempron CPUs System Chipset: * RS780E * SB700 On Board Chipset: * BIOS - SPI * Azalia CODEC - Realtek ALC888 * LPC SuperIO - ITE8718F(GX). * LAN - REALTEK 8111C * TPM - SLB9635TT1.2 Main Memory: * DDR II * 4 (Max 4GB) Expansion Slots: * PCI Express X16 slot*2 (PCI-E X8 Bus) * PCI Express X4 Slot*1 Intersil PWM: * Controller - Intersil 6323 Note: 1. The only difference to mahogany is the CPU is changed to K8 family 10. 2. The main structure of the code is based on serengeti_cheetah_fam10. I am a rookie to fam10. I am still confused about CONFIG_HT_CHAIN_UNITID_BASE and CONFIG_HT_CHAIN_END_UNITID_BASE. I set them as the way dbm690t does. And I have to modify the some fam10 code (see the patch ht_chain_unitid_base.patch). I dont know how to solve this. Please help. Updated findings: In h3finit.c, the code goes the AMD_CB_ManualBUIDSwapList(). The swaplist is {0x00, 0x00, 0xFF, 0x00, 0xFF}. I am trying to find the meaning of the list. The amdht wrapper needs to modify definitely. 3. With fam10 processor, the HT link can work in HT3. 4. The ACPI _PSS table is set staticly. The auto configuaration process doesnt seem to work correctly. 5. Currently the fam10 code in coreboot doesn't support DDR3. If you happen to get a board with DDR3 and you don't have the patience to wait, please find another board with DDR2. 6. It will take "Uncompressing image to RAM" about 1 minute. I know it is a issue for a long time. I disable the compressing currently. When the problem is fixed, we can re-enable it. Signed-off-by: Zheng Bao Acked-by: Marc Jones git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5221 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1 --- src/mainboard/amd/mahogany_fam10/mainboard.c | 166 +++++++++++++++++++++++++++ 1 file changed, 166 insertions(+) create mode 100644 src/mainboard/amd/mahogany_fam10/mainboard.c (limited to 'src/mainboard/amd/mahogany_fam10/mainboard.c') diff --git a/src/mainboard/amd/mahogany_fam10/mainboard.c b/src/mainboard/amd/mahogany_fam10/mainboard.c new file mode 100644 index 0000000000..47c153cf0a --- /dev/null +++ b/src/mainboard/amd/mahogany_fam10/mainboard.c @@ -0,0 +1,166 @@ +/* + * 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. + * + * 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 +#include +#include +#include +#include +#include +#include +#include +#include <../southbridge/amd/sb700/sb700.h> +#include "chip.h" + +#define SMBUS_IO_BASE 0x6000 + +extern void lb_add_memory_range(struct lb_memory *mem, uint32_t type, + uint64_t start, uint64_t size); + +uint64_t uma_memory_base, uma_memory_size; + +/* + * Mahogany uses GPIO 6 as PCIe slot reset, GPIO4 as GFX slot reset. We need to + * pull it up before training the slot. + ***/ +void set_pcie_dereset() +{ + u16 word; + device_t sm_dev; + /* GPIO 6 reset PCIe slot, GPIO 4 reset GFX PCIe */ + sm_dev = dev_find_slot(0, PCI_DEVFN(0x14, 0)); + + word = pci_read_config16(sm_dev, 0xA8); + word |= (1 << 0) | (1 << 2); /* Set Gpio6,4 as output */ + word &= ~((1 << 8) | (1 << 10)); + pci_write_config16(sm_dev, 0xA8, word); +} + +void set_pcie_reset() +{ + u16 word; + device_t sm_dev; + /* GPIO 6 reset PCIe slot, GPIO 4 reset GFX PCIe */ + sm_dev = dev_find_slot(0, PCI_DEVFN(0x14, 0)); + + word = pci_read_config16(sm_dev, 0xA8); + word &= ~((1 << 0) | (1 << 2)); /* Set Gpio6,4 as output */ + word &= ~((1 << 8) | (1 << 10)); + pci_write_config16(sm_dev, 0xA8, word); +} + +/******************************************************** +* mahogany uses SB700 GPIO8 to detect IDE_DMA66. +* IDE_DMA66 is routed to GPIO 8. So we read Gpio 8 to +* get the cable type, 40 pin or 80 pin? +********************************************************/ +static void get_ide_dma66() +{ + 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 << 4); /* Set Gpio8 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 << 4) & pci_read_config8(sm_dev, 0xAA)) + byte |= 2 << 0; /* mode 2 */ + else + byte |= 5 << 0; /* mode 5 */ + pci_write_config8(ide_dev, 0x56, byte); +} + +/************************************************* +* enable the dedicated function in mahogany board. +* This function called early than rs780_enable. +*************************************************/ +void mahogany_enable(device_t dev) +{ + struct mainboard_config *mainboard = + (struct mainboard_config *)dev->chip_info; + + printk_info("Mainboard MAHOGANY Enable. dev=0x%p\n", dev); + +#if (CONFIG_GFXUMA == 1) + msr_t msr, msr2; + + /* TOP_MEM: the top of DRAM below 4G */ + msr = rdmsr(TOP_MEM); + printk_info + ("%s, TOP MEM: msr.lo = 0x%08x, msr.hi = 0x%08x\n", + __func__, msr.lo, msr.hi); + + /* TOP_MEM2: the top of DRAM above 4G */ + msr2 = rdmsr(TOP_MEM2); + printk_info + ("%s, TOP MEM2: msr2.lo = 0x%08x, msr2.hi = 0x%08x\n", + __func__, msr2.lo, msr2.hi); + + /* refer to UMA Size Consideration in 780 BDG. */ + switch (msr.lo) { + case 0x10000000: /* 256M system memory */ + uma_memory_size = 0x4000000; /* 64M recommended UMA */ + break; + + case 0x20000000: /* 512M system memory */ + uma_memory_size = 0x8000000; /* 128M recommended UMA */ + break; + + default: /* 1GB and above system memory */ + uma_memory_size = 0x10000000; /* 256M recommended UMA */ + break; + } + + uma_memory_base = msr.lo - uma_memory_size; /* TOP_MEM1 */ + printk_info("%s: uma size 0x%08llx, memory start 0x%08llx\n", + __func__, uma_memory_size, uma_memory_base); + + /* TODO: TOP_MEM2 */ +#else + uma_memory_size = 0x8000000; /* 128M recommended UMA */ + uma_memory_base = 0x38000000; /* 1GB system memory supposed */ +#endif + + set_pcie_dereset(); + /* get_ide_dma66(); */ +} + +int add_mainboard_resources(struct lb_memory *mem) +{ + /* UMA is removed from system memory in the northbridge code, but + * in some circumstances we want the memory mentioned as reserved. + */ +#if (CONFIG_GFXUMA == 1) + printk_info("uma_memory_start=0x%x, uma_memory_size=0x%x \n", + uma_memory_base, uma_memory_size); + lb_add_memory_range(mem, LB_MEM_RESERVED, + uma_memory_base, uma_memory_size); +#endif +} + +struct chip_operations mainboard_ops = { + CHIP_NAME("AMD MAHOGANY Mainboard") + .enable_dev = mahogany_enable, +}; -- cgit v1.2.3