diff options
author | Marc Jones <marcj303@gmail.com> | 2010-09-13 19:24:38 +0000 |
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committer | Marc Jones <marc.jones@amd.com> | 2010-09-13 19:24:38 +0000 |
commit | 738347e7c3f9ba059cb56740703c9b513744aac6 (patch) | |
tree | d1f6bd6f22037287d6eb07fec5ffe5a03df30b7f /src/mainboard/iei/kino-780am2-fam10/mainboard.c | |
parent | 2b28614cc5021a0f3b20d3b8df6ac0d7813c1196 (diff) |
IEI Kino mainboard support based on Mahogany Fam10.
svn copy amd/mahogany iei/kino-780am2-fam10; then apply the patch.
Signed-off-by: Marc Jones <marcj303@gmail.com>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5812 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/mainboard/iei/kino-780am2-fam10/mainboard.c')
-rw-r--r-- | src/mainboard/iei/kino-780am2-fam10/mainboard.c | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/src/mainboard/iei/kino-780am2-fam10/mainboard.c b/src/mainboard/iei/kino-780am2-fam10/mainboard.c new file mode 100644 index 0000000000..379efe519b --- /dev/null +++ b/src/mainboard/iei/kino-780am2-fam10/mainboard.c @@ -0,0 +1,126 @@ +/* + * 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 <console/console.h> +#include <device/device.h> +#include <device/pci.h> +#include <arch/io.h> +#include <boot/tables.h> +#include <cpu/x86/msr.h> +#include <cpu/amd/mtrr.h> +#include <device/pci_def.h> +#include <southbridge/amd/sb700/sb700.h> +#include "chip.h" + +#define SMBUS_IO_BASE 0x6000 + +uint64_t uma_memory_base, uma_memory_size; + +void set_pcie_dereset(void); +void set_pcie_reset(void); +u8 is_dev3_present(void); +/* TODO - Need to find GPIO for PCIE slot. + * Kino uses GPIO ? as PCIe slot reset, GPIO? as GFX slot reset. We need to + * pull it up before training the slot. + ***/ +void set_pcie_dereset() +{ + /* PCIE slot not yet supported.*/ +} + +void set_pcie_reset() +{ + /* PCIE slot not yet supported.*/ +} + +u8 is_dev3_present(void) +{ + return 0; +} + +/************************************************* +* enable the dedicated function in kino board. +* This function called early than rs780_enable. +*************************************************/ +static void kino_enable(device_t dev) +{ + printk(BIOS_INFO, "Mainboard Kino 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 + (BIOS_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 + (BIOS_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(BIOS_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(BIOS_INFO, "uma_memory_start=0x%llx, uma_memory_size=0x%llx \n", + uma_memory_base, uma_memory_size); + lb_add_memory_range(mem, LB_MEM_RESERVED, uma_memory_base, + uma_memory_size); +#endif + return 0; +} + +struct chip_operations mainboard_ops = { + CHIP_NAME("IEI Kino-780AM2 Mainboard") + .enable_dev = kino_enable, +}; |