diff options
Diffstat (limited to 'src/northbridge/via/vt8601')
| -rw-r--r-- | src/northbridge/via/vt8601/Kconfig | 4 | ||||
| -rw-r--r-- | src/northbridge/via/vt8601/Makefile.inc | 21 | ||||
| -rw-r--r-- | src/northbridge/via/vt8601/northbridge.c | 132 | ||||
| -rw-r--r-- | src/northbridge/via/vt8601/northbridge.h | 6 | ||||
| -rw-r--r-- | src/northbridge/via/vt8601/raminit.c | 392 | ||||
| -rw-r--r-- | src/northbridge/via/vt8601/raminit.h | 8 |
6 files changed, 0 insertions, 563 deletions
diff --git a/src/northbridge/via/vt8601/Kconfig b/src/northbridge/via/vt8601/Kconfig deleted file mode 100644 index 1b202679ab..0000000000 --- a/src/northbridge/via/vt8601/Kconfig +++ /dev/null @@ -1,4 +0,0 @@ -config NORTHBRIDGE_VIA_VT8601 - bool - select HAVE_DEBUG_RAM_SETUP - diff --git a/src/northbridge/via/vt8601/Makefile.inc b/src/northbridge/via/vt8601/Makefile.inc deleted file mode 100644 index 35e423ac73..0000000000 --- a/src/northbridge/via/vt8601/Makefile.inc +++ /dev/null @@ -1,21 +0,0 @@ -## -## This file is part of the coreboot project. -## -## Copyright (C) 2007 Corey Osgood <corey.osgood@gmail.com> -## -## 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; either version 2 of the License, or -## (at your option) any later version. -## -## 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 -## - -ramstage-y += northbridge.c diff --git a/src/northbridge/via/vt8601/northbridge.c b/src/northbridge/via/vt8601/northbridge.c deleted file mode 100644 index 188749130f..0000000000 --- a/src/northbridge/via/vt8601/northbridge.c +++ /dev/null @@ -1,132 +0,0 @@ -#include <console/console.h> -#include <arch/io.h> -#include <stdint.h> -#include <device/device.h> -#include <device/pci.h> -#include <device/pci_ids.h> -#include <device/hypertransport.h> -#include <cpu/cpu.h> -#include <cbmem.h> -#include <stdlib.h> -#include <string.h> -#include "northbridge.h" - -/* - * This fixup is based on capturing values from an Award bios. Without - * this fixup the DMA write performance is awful (i.e. hdparm -t /dev/hda is 20x - * slower than normal, ethernet drops packets). - * Apparently these registers govern some sort of bus master behavior. - */ -static void northbridge_init(device_t dev) -{ - printk(BIOS_SPEW, "VT8601 random fixup ...\n"); - pci_write_config8(dev, 0x70, 0xc0); - pci_write_config8(dev, 0x71, 0x88); - pci_write_config8(dev, 0x72, 0xec); - pci_write_config8(dev, 0x73, 0x0c); - pci_write_config8(dev, 0x74, 0x0e); - pci_write_config8(dev, 0x75, 0x81); - pci_write_config8(dev, 0x76, 0x52); -} - -static struct device_operations northbridge_operations = { - .read_resources = pci_dev_read_resources, - .set_resources = pci_dev_set_resources, - .enable_resources = pci_dev_enable_resources, - .init = northbridge_init, - .enable = 0, - .ops_pci = 0, -}; - -static const struct pci_driver northbridge_driver __pci_driver = { - .ops = &northbridge_operations, - .vendor = PCI_VENDOR_ID_VIA, - .device = 0x0601, /* 0x8601 is the AGP bridge? */ -}; - -static void pci_domain_set_resources(device_t dev) -{ - static const uint8_t ramregs[] = { - 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, 0x56, 0x57 - }; - device_t mc_dev; - uint32_t pci_tolm; - - pci_tolm = find_pci_tolm(dev->link_list); - mc_dev = dev->link_list->children; - if (mc_dev) { - unsigned long tomk, tolmk; - unsigned char rambits; - int i, idx; - - for(rambits = 0, i = 0; i < ARRAY_SIZE(ramregs); i++) { - unsigned char reg; - reg = pci_read_config8(mc_dev, ramregs[i]); - /* these are ENDING addresses, not sizes. - * if there is memory in this slot, then reg will be > rambits. - * So we just take the max, that gives us total. - * We take the highest one to cover for once and future coreboot - * bugs. We warn about bugs. - */ - if (reg > rambits) - rambits = reg; - if (reg < rambits) - printk(BIOS_ERR, "ERROR! register 0x%x is not set!\n", - ramregs[i]); - } - printk(BIOS_DEBUG, "I would set ram size to 0x%x Kbytes\n", (rambits)*8*1024); - tomk = rambits*8*1024; - /* Compute the top of Low memory */ - tolmk = pci_tolm >> 10; - if (tolmk >= tomk) { - /* The PCI hole does does not overlap the memory. - */ - tolmk = tomk; - } - - set_top_of_ram(tolmk * 1024); - - /* Report the memory regions */ - idx = 10; - ram_resource(dev, idx++, 0, tolmk); - } - assign_resources(dev->link_list); -} - -static struct device_operations pci_domain_ops = { - .read_resources = pci_domain_read_resources, - .set_resources = pci_domain_set_resources, - .enable_resources = NULL, - .init = NULL, - .scan_bus = pci_domain_scan_bus, - .ops_pci_bus = pci_bus_default_ops, -}; - -static void cpu_bus_init(device_t dev) -{ - initialize_cpus(dev->link_list); -} - -static struct device_operations cpu_bus_ops = { - .read_resources = DEVICE_NOOP, - .set_resources = DEVICE_NOOP, - .enable_resources = DEVICE_NOOP, - .init = cpu_bus_init, - .scan_bus = 0, -}; - -static void enable_dev(struct device *dev) -{ - /* Set the operations if it is a special bus type */ - if (dev->path.type == DEVICE_PATH_DOMAIN) { - dev->ops = &pci_domain_ops; - } - else if (dev->path.type == DEVICE_PATH_CPU_CLUSTER) { - dev->ops = &cpu_bus_ops; - } -} - -struct chip_operations northbridge_via_vt8601_ops = { - CHIP_NAME("VIA VT8601 Northbridge") - .enable_dev = enable_dev, -}; diff --git a/src/northbridge/via/vt8601/northbridge.h b/src/northbridge/via/vt8601/northbridge.h deleted file mode 100644 index d7f8e605b8..0000000000 --- a/src/northbridge/via/vt8601/northbridge.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef NORTHBRIDGE_VIA_VT8601_H -#define NORTHBRIDGE_VIA_VT8601_H - -extern unsigned int vt8601_scan_root_bus(device_t root, unsigned int max); - -#endif /* NORTHBRIDGE_VIA_VT8601_H */ diff --git a/src/northbridge/via/vt8601/raminit.c b/src/northbridge/via/vt8601/raminit.c deleted file mode 100644 index 5e7611a3c0..0000000000 --- a/src/northbridge/via/vt8601/raminit.c +++ /dev/null @@ -1,392 +0,0 @@ -#include <cpu/x86/mtrr.h> -#include "raminit.h" - -/* -This software and ancillary information (herein called SOFTWARE ) -called LinuxBIOS is made available under the terms described -here. The SOFTWARE has been approved for release with associated -LA-CC Number 00-34 . Unless otherwise indicated, this SOFTWARE has -been authored by an employee or employees of the University of -California, operator of the Los Alamos National Laboratory under -Contract No. W-7405-ENG-36 with the U.S. Department of Energy. The -U.S. Government has rights to use, reproduce, and distribute this -SOFTWARE. The public may copy, distribute, prepare derivative works -and publicly display this SOFTWARE without charge, provided that this -Notice and any statement of authorship are reproduced on all copies. -Neither the Government nor the University makes any warranty, express -or implied, or assumes any liability or responsibility for the use of -this SOFTWARE. If SOFTWARE is modified to produce derivative works, -such modified SOFTWARE should be clearly marked, so as not to confuse -it with the version available from LANL. - */ -/* Copyright 2000, Ron Minnich, Advanced Computing Lab, LANL - * rminnich@lanl.gov - */ -/* - * 11/26/02 - kevinh@ispiri.com - The existing comments implied that - * this didn't work yet. Therefore, I've updated it so that it works - * correctly - at least on my VIA epia motherboard. 64MB DIMM in slot 0. - */ - -/* Added automatic detection of first equipped bank and its MA mapping type. - * (Rest of configuration is done in C) - * 5/19/03 by SONE Takeshi <ts1@tsn.or.jp> - */ -/* converted to C 9/2003 Ron Minnich */ - -#include <spd.h> - -/* Set to 1 if your DIMMs are PC133 Note that I'm assuming CPU's FSB - * frequency is 133MHz. If your CPU runs at another bus speed, you - * might need to change some of register values. - */ -#ifndef DIMM_PC133 -#define DIMM_PC133 0 -#endif - -// Set to 1 if your DIMMs are CL=2 -#ifndef DIMM_CL2 -#define DIMM_CL2 0 -#endif - -static void dimms_read(unsigned long x) -{ - uint8_t c; - unsigned long eax; - volatile unsigned long y; - eax = x; - for (c = 0; c < 6; c++) { - y = *(volatile unsigned long *) eax; - eax += 0x10000000; - } -} - -static void dimms_write(int x) -{ - uint8_t c; - unsigned long eax = x; - for (c = 0; c < 6; c++) { - *(volatile unsigned long *) eax = 0; - eax += 0x10000000; - } -} - -#if CONFIG_DEBUG_RAM_SETUP -static void dumpnorth(device_t north) -{ - unsigned int r, c; - for (r = 0;; r += 16) { - print_debug_hex8(r); - print_debug(":"); - for (c = 0; c < 16; c++) { - print_debug_hex8(pci_read_config8(north, r + c)); - print_debug(" "); - } - print_debug("\n"); - if (r >= 240) - break; - } -} -#endif - -static void sdram_set_registers(const struct mem_controller *ctrl) -{ - device_t north = (device_t) PCI_DEV(0, 0, 0); - - print_err("vt8601 init starting\n"); - print_debug_hex32(north); - print_debug(" is the north\n"); - print_debug_hex16(pci_read_config16(north, 0)); - print_debug(" "); - print_debug_hex16(pci_read_config16(north, 2)); - print_debug("\n"); - - /* All we are doing now is setting initial known-good values that will - * be revised later as we read SPD - */ - - // memory clk enable. We are not using ECC - pci_write_config8(north, 0x78, 0x01); - print_debug_hex8(pci_read_config8(north, 0x78)); - - // dram control, see the book. -#if DIMM_PC133 - pci_write_config8(north, 0x68, 0x52); -#else - pci_write_config8(north, 0x68, 0x42); -#endif - - // dram control, see the book. - pci_write_config8(north, 0x6B, 0x0c); - - // Initial setting, 256MB in each bank, will be rewritten later. - pci_write_config8(north, 0x5A, 0x20); - print_debug_hex8(pci_read_config8(north, 0x5a)); - pci_write_config8(north, 0x5B, 0x40); - pci_write_config8(north, 0x5C, 0x60); - pci_write_config8(north, 0x5D, 0x80); - pci_write_config8(north, 0x5E, 0xA0); - pci_write_config8(north, 0x5F, 0xC0); - // It seems we have to take care of these 2 registers as if - // they are bank 6 and 7. - pci_write_config8(north, 0x56, 0xC0); - pci_write_config8(north, 0x57, 0xC0); - - // SDRAM in all banks - pci_write_config8(north, 0x60, 0x3F); - - // DRAM timing. I'm suspicious of this - // This is for all banks, 64 is 0,1. 65 is 2,3. 66 is 4,5. - // ras precharge 4T, RAS pulse 5T - // cas2 is 0xd6, cas3 is 0xe6 - // we're also backing off write pulse width to 2T, so result is 0xee -#if DIMM_CL2 - pci_write_config8(north, 0x64, 0xd4); - pci_write_config8(north, 0x65, 0xd4); - pci_write_config8(north, 0x66, 0xd4); -#else // CL=3 - pci_write_config8(north, 0x64, 0xe4); - pci_write_config8(north, 0x65, 0xe4); - pci_write_config8(north, 0x66, 0xe4); -#endif - - // dram frequency select. - // enable 4K pages for 64M dram. -#if DIMM_PC133 - pci_write_config8(north, 0x69, 0x3c); -#else - pci_write_config8(north, 0x69, 0xac); -#endif - - /* IMPORTANT -- disable refresh counter */ - // refresh counter, disabled. - pci_write_config8(north, 0x6A, 0x00); - - // clkenable configuration. kevinh FIXME - add precharge - pci_write_config8(north, 0x6C, 0x00); - // dram read latch delay of 1 ns, MD drive 8 mA, - // high drive strength on MA[2: 13], we#, cas#, ras# - // As per Cindy Lee, set to 0x37, not 0x57 - pci_write_config8(north, 0x6D, 0x7f); -} - -/* slot is the dram slot. Return size of side0 in lower 16-bit, - * side1 in upper 16-bit, in units of 8MB */ -static unsigned long spd_module_size(unsigned char slot) -{ - /* for all the DRAMS, see if they are there and get the size of each - * module. This is just a very early first cut at sizing. - */ - /* we may run out of registers ... */ - unsigned int banks, rows, cols; - unsigned int value = 0; - /* unsigned int module = ((DIMM0 + slot) << 1) + 1; */ - unsigned int module = DIMM0 + slot; - - /* is the module there? if byte 2 is not 4, then we'll assume it - * is useless. - */ - print_info("Slot "); - print_info_hex8(slot); - if (smbus_read_byte(module, 2) != 4) { - print_info(" is empty\n"); - return 0; - } - print_info(" is SDRAM "); - - banks = smbus_read_byte(module, 17); - - /* we're going to assume symmetric banks. Sorry. */ - cols = smbus_read_byte(module, 4) & 0xf; - rows = smbus_read_byte(module, 3) & 0xf; - - /* grand total. You have rows+cols addressing, * times of banks, times - * width of data in bytes */ - /* Width is assumed to be 64 bits == 8 bytes */ - value = (1 << (cols + rows)); - value *= banks * 8; - print_info_hex32(value); - print_info(" bytes "); - /* Return in 8MB units */ - value >>= 23; - - /* We should have single or double side */ - if (smbus_read_byte(module, 5) == 2) { - print_info("x2"); - value = (value << 16) | value; - } - print_info("\n"); - return value; -} - -#if 0 -static int spd_num_chips(unsigned char slot) -{ - unsigned int module = DIMM0 + slot; - unsigned int width; - - width = smbus_read_byte(module, 13); - if (width == 0) - width = 8; - return 64 / width; -} -#endif - -static void sdram_set_spd_registers(const struct mem_controller *ctrl) -{ -#define T133 7 - unsigned char Trp = 1, Tras = 1, casl = 2, val; - unsigned char timing = 0xe4; - /* read Trp */ - val = smbus_read_byte(DIMM0, 27); - if (val < 2 * T133) - Trp = 1; - val = smbus_read_byte(DIMM0, 30); - if (val < 5 * T133) - Tras = 0; - val = smbus_read_byte(DIMM0, 18); - if (val < 8) - casl = 1; - if (val < 4) - casl = 0; - - val = (Trp << 7) | (Tras << 6) | (casl << 4) | 4; - - print_debug_hex8(val); - print_debug(" is the computed timing\n"); - /* don't set it. Experience shows that this screwy chipset should just - * be run with the most conservative timing. - * pci_write_config8(0, 0x64, val); - */ -} - -static void set_ma_mapping(device_t north, int slot, int type) -{ - unsigned char reg, val; - int shift; - - reg = 0x58 + slot / 2; - if (slot % 2 >= 1) - shift = 0; - else - shift = 4; - - val = pci_read_config8(north, reg); - val &= ~(0xf << shift); - val |= type << shift; - pci_write_config8(north, reg, val); -} - - -static void sdram_enable(int controllers, const struct mem_controller *ctrl) -{ - static const uint8_t ramregs[] = { - 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, 0x56, 0x57 - }; - device_t north = 0; - uint32_t size, base, slot, ma; - /* begin to initialize */ - - // I forget why we need this, but we do - dimms_write(0xa55a5aa5); - - /* set NOP */ - pci_write_config8(north, 0x6C, 0x01); - print_debug("NOP\n"); - /* wait 200us */ - // You need to do the memory reference. That causes the nop cycle. - dimms_read(0); - udelay(400); - print_debug("PRECHARGE\n"); - /* set precharge */ - pci_write_config8(north, 0x6C, 0x02); - print_debug("DUMMY READS\n"); - /* dummy reads */ - dimms_read(0); - udelay(200); - print_debug("CBR\n"); - /* set CBR */ - pci_write_config8(north, 0x6C, 0x04); - - /* do 8 reads and wait >100us between each - from via */ - dimms_read(0); - udelay(200); - dimms_read(0); - udelay(200); - dimms_read(0); - udelay(200); - dimms_read(0); - udelay(200); - dimms_read(0); - udelay(200); - dimms_read(0); - udelay(200); - dimms_read(0); - udelay(200); - dimms_read(0); - udelay(200); - print_debug("MRS\n"); - /* set MRS */ - pci_write_config8(north, 0x6c, 0x03); -#if DIMM_CL2 - dimms_read(0x150); -#else // CL=3 - dimms_read(0x1d0); -#endif - udelay(200); - print_debug("NORMAL\n"); - /* set to normal mode */ - pci_write_config8(north, 0x6C, 0x08); - - dimms_write(0x55aa55aa); - dimms_read(0); - udelay(200); - print_debug("set ref. rate\n"); - // Set the refresh rate. -#if DIMM_PC133 - pci_write_config8(north, 0x6A, 0x86); -#else - pci_write_config8(north, 0x6A, 0x65); -#endif - print_debug("enable multi-page open\n"); - // enable multi-page open - pci_write_config8(north, 0x6B, 0x0d); - - base = 0; - for (slot = 0; slot < 4; slot++) { - size = spd_module_size(slot); - /* side 0 */ - base += size & 0xffff; - pci_write_config8(north, ramregs[2 * slot], base); - /* side 1 */ - base += size >> 16; - if (base > 0xff) - base = 0xff; - pci_write_config8(north, ramregs[2 * slot + 1], base); - - if (!size) - continue; - - /* Read the row densities */ - size = smbus_read_byte(DIMM0 + slot, 0x1f); - - /* Set the MA map type. - * - * 0xa should be another option, but when - * it would be used is unknown. - */ - - if (size < 16 ) /* less than 64 MB per side */ - ma = 0x0; - else if (size < 32) /* less than 128MB per side */ - ma = 0x8; - else if ( size < 64) /* less than 256MB per side */ - ma = 0xc; - else /* 256MB or more per side */ - ma = 0xe; - print_debug_hex16(ma); - print_debug(" is the MA type\n"); - set_ma_mapping(north, slot, ma); - } - print_err("vt8601 done\n"); -} diff --git a/src/northbridge/via/vt8601/raminit.h b/src/northbridge/via/vt8601/raminit.h deleted file mode 100644 index b6d2339df3..0000000000 --- a/src/northbridge/via/vt8601/raminit.h +++ /dev/null @@ -1,8 +0,0 @@ -#ifndef RAMINIT_H -#define RAMINIT_H - -struct mem_controller { - int empty; -}; - -#endif /* RAMINIT_H */ |