diff options
Diffstat (limited to 'src/northbridge')
| -rw-r--r-- | src/northbridge/via/cn700/Kconfig | 46 | ||||
| -rw-r--r-- | src/northbridge/via/cn700/Makefile.inc | 24 | ||||
| -rw-r--r-- | src/northbridge/via/cn700/acpi/hostbridge.asl | 89 | ||||
| -rw-r--r-- | src/northbridge/via/cn700/agp.c | 198 | ||||
| -rw-r--r-- | src/northbridge/via/cn700/cn700.h | 50 | ||||
| -rw-r--r-- | src/northbridge/via/cn700/northbridge.c | 182 | ||||
| -rw-r--r-- | src/northbridge/via/cn700/northbridge.h | 22 | ||||
| -rw-r--r-- | src/northbridge/via/cn700/raminit.c | 473 | ||||
| -rw-r--r-- | src/northbridge/via/cn700/raminit.h | 33 | ||||
| -rw-r--r-- | src/northbridge/via/cn700/vga.c | 146 |
10 files changed, 0 insertions, 1263 deletions
diff --git a/src/northbridge/via/cn700/Kconfig b/src/northbridge/via/cn700/Kconfig deleted file mode 100644 index 1619ff15a3..0000000000 --- a/src/northbridge/via/cn700/Kconfig +++ /dev/null @@ -1,46 +0,0 @@ -config NORTHBRIDGE_VIA_CN700 - bool - select NO_MMCONF_SUPPORT - select HAVE_DEBUG_RAM_SETUP - select LATE_CBMEM_INIT - -# TODO: Values are from the CX700 datasheet, not sure if this matches CN700. -# TODO: What should be the per-chipset default value here? -choice - prompt "Onboard graphics" - default CN700_VIDEO_MB_32MB - depends on NORTHBRIDGE_VIA_CN700 - -# TODO: Disabling onboard graphics is not yet supported in the code. -config CN700_VIDEO_MB_OFF - bool "Disabled, 0KB" -config CN700_VIDEO_MB_8MB - bool "Enabled, 8MB" -config CN700_VIDEO_MB_16MB - bool "Enabled, 16MB" -config CN700_VIDEO_MB_32MB - bool "Enabled, 32MB" -config CN700_VIDEO_MB_64MB - bool "Enabled, 64MB" -config CN700_VIDEO_MB_128MB - bool "Enabled, 128MB" - -endchoice - -if NORTHBRIDGE_VIA_CN700 - -config VIDEO_MB - int - default 0 if CN700_VIDEO_MB_OFF - default 8 if CN700_VIDEO_MB_8MB - default 16 if CN700_VIDEO_MB_16MB - default 32 if CN700_VIDEO_MB_32MB - default 64 if CN700_VIDEO_MB_64MB - default 128 if CN700_VIDEO_MB_128MB - -config VGA_BIOS_ID - string - depends on VGA_BIOS - default "1106,3344" - -endif diff --git a/src/northbridge/via/cn700/Makefile.inc b/src/northbridge/via/cn700/Makefile.inc deleted file mode 100644 index f7f288f732..0000000000 --- a/src/northbridge/via/cn700/Makefile.inc +++ /dev/null @@ -1,24 +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. -## - -ifeq ($(CONFIG_NORTHBRIDGE_VIA_CN700),y) - -ramstage-y += northbridge.c -ramstage-y += agp.c -ramstage-y += vga.c -romstage-y += raminit.c - -endif diff --git a/src/northbridge/via/cn700/acpi/hostbridge.asl b/src/northbridge/via/cn700/acpi/hostbridge.asl deleted file mode 100644 index 2fb41588bb..0000000000 --- a/src/northbridge/via/cn700/acpi/hostbridge.asl +++ /dev/null @@ -1,89 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2017 Lubomir Rintel <lkundrak@v3.sk> - * - * 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. - */ - -#include <arch/ioapic.h> - -Name (_HID, EisaId ("PNP0A03")) -Name (_UID, 1) -Name (_ADR, 0x00000000) -Name (_BBN, 0) - -/* The DRAM controller */ -Device (MEMC) -{ - Name (_ADR, 0x00000003) - - OperationRegion (MEMB, PCI_Config, 0x00, 0xEF) - Field (MEMB, DWordAcc, NoLock, Preserve) { - - /* DRAM Rank Ending Address */ - Offset (0x40), - R0EA, 8, /* Rank 0 Ending Address */ - R1EA, 8, /* Rank 1 Ending Address */ - R2EA, 8, /* Rank 2 Ending Address */ - R3EA, 8, /* Rank 3 Ending Address */ - } - - /* Find the top of DRAM */ - Method (TOLM, 0) { - /* Find the last occupied rank's end. */ - Store (R3EA, Local0) - If (LEqual (Local0, Zero)) { - Store (R2EA, Local0) - } - If (LEqual (Local0, Zero)) { - Store (R1EA, Local0) - } - If (LEqual (Local0, Zero)) { - Store (R0EA, Local0) - } - /* The granularity is 64M */ - ShiftLeft (Local0, 26, Local0) - Return (Local0) - } -} - -Name (XCRS, ResourceTemplate () { - /* All PCI busses */ - WordBusNumber (ResourceConsumer, MinNotFixed, MaxNotFixed, PosDecode, - 0x0000, 0x0000, 0x00ff, 0x0000, 0x0100,,,) - - /* IO-space, sans the PCI regs. */ - WordIO (ResourceProducer, MinFixed, MaxFixed, PosDecode, EntireRange, - 0x0000, 0x0000, 0x0CF7, 0x0000, 0x0CF8, - ,,, TypeStatic) - WordIO (ResourceProducer, MinFixed, MaxFixed, PosDecode, EntireRange, - 0x0000, 0x0D00, 0xFFFF, 0x0000, 0xF300, - ,,, TypeStatic) - - /* The space from top of DRAM to IOAPIC */ - DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, Cacheable, ReadWrite, - /* This is a template that gets filled in _CRS() */ - 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,,, - MEM0, AddressRangeMemory, TypeStatic) -}) -Method (_CRS, 0) { - - /* MEM0 is from the top of RAM to IOAPIC */ - CreateDWordField (XCRS, \_SB.PCI0.MEM0._MIN, MEML) - CreateDWordField (XCRS, \_SB.PCI0.MEM0._MAX, MEMH) - CreateDWordField (XCRS, \_SB.PCI0.MEM0._LEN, LENM) - Store (\_SB.PCI0.MEMC.TOLM, MEML) - Subtract (IO_APIC_ADDR, 1, MEMH) - Subtract (IO_APIC_ADDR, MEML, LENM) - - Return (XCRS); -} diff --git a/src/northbridge/via/cn700/agp.c b/src/northbridge/via/cn700/agp.c deleted file mode 100644 index d0355730f5..0000000000 --- a/src/northbridge/via/cn700/agp.c +++ /dev/null @@ -1,198 +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. - */ - -#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 "northbridge.h" -#include "cn700.h" - -/* This is the main AGP device, and only one used when configured for AGP 2.0 */ -static void agp_init(struct device *dev) -{ - u32 reg32; - - /* Some of this may not be necessary (should be handled by the OS). */ - printk(BIOS_DEBUG, "Enabling AGP.\n"); - - /* Allow R/W access to AGP registers. */ - pci_write_config8(dev, 0x4d, 0x15); - - /* Setup PCI latency timer. */ - pci_write_config8(dev, 0xd, 0x8); - - /* - * Set to AGP 3.0 Mode, which should theoretically render the rest of - * the registers set here pointless. - */ - pci_write_config8(dev, 0x84, 0xb); - - /* AGP Request Queue Size */ - pci_write_config8(dev, 0x4a, 0x1f); - - /* - * AGP Hardware Support (default 0xc4) - * 7: AGP SBA Enable (1 to Enable) - * 6: AGP Enable - * 5: Reserved - * 4: Fast Write Enable - * 3: AGP8X Mode Enable - * 2: AGP4X Mode Enable - * 1: AGP2X Mode Enable - * 0: AGP1X Mode Enable - */ - pci_write_config8(dev, 0x4b, 0xc4); - - /* Enable AGP Backdoor */ - pci_write_config8(dev, 0xb5, 0x03); - - /* Set aperture to 32 MB. */ - /* TODO: Use config option, explain how it works. */ - pci_write_config32(dev, 0x94, 0x00010f38); - /* Set GART Table Base Address (31:12). */ - pci_write_config32(dev, 0x98, (0x1558 << 12)); - /* Set AGP Aperture Base. */ - pci_write_config32(dev, 0x10, 0xf8000008); - - /* Enable CPU/PMSTR GART Access. */ - reg32 = pci_read_config8(dev, 0xbf); - reg32 |= 0x80; - pci_write_config8(dev, 0xbf, reg32); - - /* Enable AGP Aperture. */ - reg32 = pci_read_config32(dev, 0x94); - reg32 |= (3 << 7); - pci_write_config32(dev, 0x90, reg32); - - /* AGP Control */ - pci_write_config8(dev, 0xbc, 0x21); - pci_write_config8(dev, 0xbd, 0xd2); - - /* - * AGP Pad, driving strength, and delay control. All this should be - * constant, seeing as the VGA controller is onboard. - */ - pci_write_config8(dev, 0x40, 0xc7); - pci_write_config8(dev, 0x41, 0xdb); - pci_write_config8(dev, 0x42, 0x10); - pci_write_config8(dev, 0x43, 0xdb); - pci_write_config8(dev, 0x44, 0x24); - - /* AGPC CKG Control */ - pci_write_config8(dev, 0xc0, 0x02); - pci_write_config8(dev, 0xc1, 0x02); -} - -static const struct device_operations agp_operations = { - .read_resources = DEVICE_NOOP, - .set_resources = pci_dev_set_resources, - .enable_resources = pci_dev_enable_resources, - .init = agp_init, - .ops_pci = 0, -}; - -static const struct pci_driver agp_driver __pci_driver = { - .ops = &agp_operations, - .vendor = PCI_VENDOR_ID_VIA, - .device = PCI_DEVICE_ID_VIA_CN700_AGP, -}; - -/* - * This is the AGP 3.0 "bridge" @Bus 0 Device 1 Func 0. When using AGP 3.0, the - * config in this device takes presidence. We configure both just to be safe. - */ -static void agp_bridge_init(struct device *dev) -{ - printk(BIOS_DEBUG, "Setting up AGP bridge device\n"); - - pci_write_config16(dev, 0x4, 0x0007); - - /* Secondary Bus Number */ - pci_write_config8(dev, 0x19, 0x01); - /* Subordinate Bus Number */ - pci_write_config8(dev, 0x1a, 0x01); - /* I/O Base */ - pci_write_config8(dev, 0x1c, 0xd0); - /* I/O Limit */ - pci_write_config8(dev, 0x1d, 0xd0); - - /* Memory Base */ - pci_write_config16(dev, 0x20, 0xfb00); - /* Memory Limit */ - pci_write_config16(dev, 0x22, 0xfcf0); - /* Prefetchable Memory Base */ - pci_write_config16(dev, 0x24, 0xf400); - /* Prefetchable Memory Limit */ - pci_write_config16(dev, 0x26, 0xf7f0); - /* Enable VGA Compatible Memory/IO Range */ - pci_write_config8(dev, 0x3e, 0x08); - - /* Second PCI Bus Control (see datasheet) */ - pci_write_config8(dev, 0x40, 0x83); - pci_write_config8(dev, 0x41, 0x43); - pci_write_config8(dev, 0x42, 0xe2); - pci_write_config8(dev, 0x43, 0x44); - pci_write_config8(dev, 0x44, 0x34); - pci_write_config8(dev, 0x45, 0x72); -} - -static void agp_bridge_read_resources(struct device *dev) -{ - struct resource *resource; - - resource = new_resource(dev, 0); - if (resource) { - resource->base = 0; - resource->size = 0; - resource->limit = 0xffffUL; - resource->flags = IORESOURCE_IO | IORESOURCE_BRIDGE; - } - - resource = new_resource(dev, 1); - if (resource) { - resource->base = 0; - resource->size = 0; - resource->limit = 0xfffffffffULL; - resource->flags = IORESOURCE_MEM | IORESOURCE_PREFETCH; - resource->flags |= IORESOURCE_BRIDGE; - } - - resource = new_resource(dev, 2); - if (resource) { - resource->base = 0; - resource->size = 0; - resource->limit = 0xffffffffULL; - resource->flags = IORESOURCE_MEM | IORESOURCE_BRIDGE; - } -} - -static const struct device_operations agp_bridge_operations = { - .read_resources = agp_bridge_read_resources, - .set_resources = pci_dev_set_resources, - .enable_resources = pci_bus_enable_resources, - .init = agp_bridge_init, - .scan_bus = pci_scan_bridge, - .ops_pci = 0, -}; - -static const struct pci_driver agp_bridge_driver __pci_driver = { - .ops = &agp_bridge_operations, - .vendor = PCI_VENDOR_ID_VIA, - .device = PCI_DEVICE_ID_VIA_CN700_BRIDGE, -}; diff --git a/src/northbridge/via/cn700/cn700.h b/src/northbridge/via/cn700/cn700.h deleted file mode 100644 index a5e8c1cf10..0000000000 --- a/src/northbridge/via/cn700/cn700.h +++ /dev/null @@ -1,50 +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. - */ - -#ifndef __VIA_CN700_H__ -#define __VIA_CN700_H__ - -/* VGA stuff */ -#define SR_INDEX 0x3c4 -#define SR_DATA 0x3c5 -#define CRTM_INDEX 0x3b4 -#define CRTM_DATA 0x3b5 -#define CRTC_INDEX 0x3d4 -#define CRTC_DATA 0x3d5 - -/* Memory controller registers */ -#define RANK0_END 0x40 -#define RANK1_END 0x41 -#define RANK2_END 0x42 -#define RANK3_END 0x43 -#define RANK0_START 0x48 -#define RANK1_START 0x49 -#define RANK2_START 0x4a -#define RANK3_START 0x4b -#define DDR_PAGE_CTL 0x69 -#define DRAM_REFRESH_COUNTER 0x6a -#define DRAM_MISC_CTL 0x6b -#define CH_A_DQS_OUTPUT_DELAY 0x70 -#define CH_A_MD_OUTPUT_DELAY 0x71 - -/* RAM init commands */ -#define RAM_COMMAND_NORMAL 0x0 -#define RAM_COMMAND_NOP 0x1 -#define RAM_COMMAND_PRECHARGE 0x2 -#define RAM_COMMAND_MRS 0x3 -#define RAM_COMMAND_CBR 0x4 - -#endif diff --git a/src/northbridge/via/cn700/northbridge.c b/src/northbridge/via/cn700/northbridge.c deleted file mode 100644 index 78bb6f95d1..0000000000 --- a/src/northbridge/via/cn700/northbridge.c +++ /dev/null @@ -1,182 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2008 VIA Technologies, Inc. - * (Written by Aaron Lwe <aaron.lwe@gmail.com> for VIA) - * 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. - */ - -#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 <stdlib.h> -#include <string.h> -#include <lib.h> -#include <cbmem.h> -#include <cpu/cpu.h> -#include "northbridge.h" -#include "cn700.h" - -static void memctrl_init(struct device *dev) -{ - struct device *vlink_dev; - u16 reg16; - u8 ranks, pagec, paged, pagee, pagef, shadowreg; - - /* Set up the VGA framebuffer size. */ - reg16 = (log2(CONFIG_VIDEO_MB) << 12) | (1 << 15); - pci_write_config16(dev, 0xa0, reg16); - - /* Set up VGA timers. */ - pci_write_config8(dev, 0xa2, 0x44); - - for (ranks = 0x4b; ranks >= 0x48; ranks--) { - if (pci_read_config8(dev, ranks)) { - ranks -= 0x48; - break; - } - } - if (ranks == 0x47) - ranks = 0x00; - reg16 = 0xaae0; - reg16 |= ranks; - /* GMINT Misc. FrameBuffer rank */ - pci_write_config16(dev, 0xb0, reg16); - /* AGPCINT Misc. */ - pci_write_config8(dev, 0xb8, 0x08); - - /* Shadow RAM */ - pagec = 0xff, paged = 0xff, pagee = 0xff, pagef = 0x30; - /* PAGE C, D, E are all read write enable */ - pci_write_config8(dev, 0x80, pagec); - pci_write_config8(dev, 0x81, paged); - pci_write_config8(dev, 0x82, pagee); - /* PAGE F are read/writable */ - shadowreg = pci_read_config8(dev, 0x83); - shadowreg |= pagef; - pci_write_config8(dev, 0x83, shadowreg); - /* vlink mirror */ - vlink_dev = dev_find_device(PCI_VENDOR_ID_VIA, - PCI_DEVICE_ID_VIA_CN700_VLINK, 0); - if (vlink_dev) { - pci_write_config8(vlink_dev, 0x61, pagec); - pci_write_config8(vlink_dev, 0x62, paged); - pci_write_config8(vlink_dev, 0x64, pagee); - - shadowreg = pci_read_config8(vlink_dev, 0x63); - shadowreg |= pagef; - pci_write_config8(vlink_dev, 0x63, shadowreg); - } -} - -static const struct device_operations memctrl_operations = { - .read_resources = DEVICE_NOOP, - .init = memctrl_init, -}; - -static const struct pci_driver memctrl_driver __pci_driver = { - .ops = &memctrl_operations, - .vendor = PCI_VENDOR_ID_VIA, - .device = PCI_DEVICE_ID_VIA_CN700_MEMCTRL, -}; - -static void pci_domain_set_resources(struct device *dev) -{ - /* The order is important to find the correct RAM size. */ - static const u8 ramregs[] = { 0x43, 0x42, 0x41, 0x40 }; - struct device *mc_dev; - u32 pci_tolm; - - printk(BIOS_SPEW, "Entering cn700 pci_domain_set_resources.\n"); - - pci_tolm = find_pci_tolm(dev->link_list); - mc_dev = dev_find_device(PCI_VENDOR_ID_VIA, - PCI_DEVICE_ID_VIA_CN700_MEMCTRL, 0); - - if (mc_dev) { - unsigned long tomk, tolmk; - unsigned char rambits; - int i, idx; - - /* - * Once the register value is not zero, the RAM size is - * this register's value multiply 64 * 1024 * 1024. - */ - for (rambits = 0, i = 0; i < ARRAY_SIZE(ramregs); i++) { - rambits = pci_read_config8(mc_dev, ramregs[i]); - if (rambits != 0) - break; - } - - tomk = rambits * 64 * 1024; - printk(BIOS_DEBUG, "tomk is 0x%lx\n", tomk); - /* Compute the Top Of Low Memory (TOLM), in Kb. */ - tolmk = pci_tolm >> 10; - if (tolmk >= tomk) { - /* The PCI hole does does not overlap the memory. */ - tolmk = tomk; - } - - set_late_cbmem_top((tolmk - CONFIG_VIDEO_MB * 1024) * 1024); - - /* Report the memory regions. */ - idx = 10; - /* TODO: Hole needed? */ - ram_resource(dev, idx++, 0, 640); /* First 640k */ - /* Leave a hole for VGA, 0xa0000 - 0xc0000 */ - ram_resource(dev, idx++, 768, - (tolmk - 768 - CONFIG_VIDEO_MB * 1024)); - } - 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, -}; - -static void cpu_bus_init(struct device *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) -{ - printk(BIOS_SPEW, "In cn700 enable_dev for device %s.\n", dev_path(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_cn700_ops = { - CHIP_NAME("VIA CN700 Northbridge") - .enable_dev = enable_dev, -}; diff --git a/src/northbridge/via/cn700/northbridge.h b/src/northbridge/via/cn700/northbridge.h deleted file mode 100644 index 1780b4d664..0000000000 --- a/src/northbridge/via/cn700/northbridge.h +++ /dev/null @@ -1,22 +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. - */ - -#ifndef NORTHBRIDGE_VIA_CN700_H -#define NORTHBRIDGE_VIA_CN700_H - -extern unsigned int cn700_scan_root_bus(struct device *root, unsigned int max); - -#endif /* NORTHBRIDGE_VIA_CN700_H */ diff --git a/src/northbridge/via/cn700/raminit.c b/src/northbridge/via/cn700/raminit.c deleted file mode 100644 index e8a7a17814..0000000000 --- a/src/northbridge/via/cn700/raminit.c +++ /dev/null @@ -1,473 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2008 VIA Technologies, Inc. - * (Written by Aaron Lwe <aaron.lwe@gmail.com> for VIA) - * 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. - */ - -#include <stdint.h> -#include <arch/io.h> -#include <northbridge/via/cn700/raminit.h> -#include <console/console.h> -#include <spd.h> -#include <delay.h> -#include "cn700.h" - -#if IS_ENABLED(CONFIG_DEBUG_RAM_SETUP) -#define PRINT_DEBUG_MEM(x) printk(BIOS_DEBUG, x) -#define PRINT_DEBUG_MEM_HEX8(x) printk(BIOS_DEBUG, "%02x", x) -#define PRINT_DEBUG_MEM_HEX16(x) printk(BIOS_DEBUG, "%04x", x) -#define PRINT_DEBUG_MEM_HEX32(x) printk(BIOS_DEBUG, "%08x", x) -#define DUMPNORTH() dump_pci_device(PCI_DEV(0, 0, 0)) -#else -#define PRINT_DEBUG_MEM(x) -#define PRINT_DEBUG_MEM_HEX8(x) -#define PRINT_DEBUG_MEM_HEX16(x) -#define PRINT_DEBUG_MEM_HEX32(x) -#define DUMPNORTH() -#endif - -static void do_ram_command(pci_devfn_t dev, u8 command) -{ - u8 reg; - - /* TODO: Support for multiple DIMMs. */ - - reg = pci_read_config8(dev, DRAM_MISC_CTL); - reg &= 0xf8; /* Clear bits 2-0. */ - reg |= command; - pci_write_config8(dev, DRAM_MISC_CTL, reg); -} - -static void c7_pci_write_config8(pci_devfn_t dev, u8 reg, u8 val) -{ - udelay(200); - pci_write_config8(dev, reg, val); -} - -/** - * Configure the bus between the CPU and the northbridge. This might be able to - * be moved to post-ram code in the future. For the most part, these registers - * should not be messed around with. These are too complex to explain short of - * copying the datasheets into the comments, but most of these values are from - * the BIOS Porting Guide, so they should work on any board. If they don't, - * try the values from your factory BIOS. - * - * TODO: Changing the DRAM frequency doesn't work (hard lockup). - * - * @param dev The northbridge's CPU Host Interface (D0F2). - */ -static void c7_cpu_setup(pci_devfn_t dev) -{ - /* Host bus interface registers (D0F2 0x50-0x67) */ - /* Request phase control */ - c7_pci_write_config8(dev, 0x50, 0x88); - /* CPU Interface Control */ - c7_pci_write_config8(dev, 0x51, 0x7a); - c7_pci_write_config8(dev, 0x52, 0x6f); - /* Arbitration */ - c7_pci_write_config8(dev, 0x53, 0x88); - /* Miscellaneous Control */ - c7_pci_write_config8(dev, 0x54, 0x1e); - c7_pci_write_config8(dev, 0x55, 0x16); - /* Write Policy */ - c7_pci_write_config8(dev, 0x56, 0x01); - /* Miscellaneous Control */ - /* - * DRAM Operating Frequency (bits 7:5) - * 000 : 100MHz 001 : 133MHz - * 010 : 166MHz 011 : 200MHz - * 100 : 266MHz 101 : 333MHz - * 110/111 : Reserved - */ - /* CPU Miscellaneous Control */ - c7_pci_write_config8(dev, 0x59, 0x44); - - /* Write Policy */ - c7_pci_write_config8(dev, 0x5d, 0xb2); - /* Bandwidth Timer */ - c7_pci_write_config8(dev, 0x5e, 0x88); - /* CPU Miscellaneous Control */ - c7_pci_write_config8(dev, 0x5f, 0xc7); - - /* Line DRDY# Timing Control */ - c7_pci_write_config8(dev, 0x60, 0xff); - c7_pci_write_config8(dev, 0x61, 0xff); - c7_pci_write_config8(dev, 0x62, 0x0f); - /* QW DRDY# Timing Control */ - c7_pci_write_config8(dev, 0x63, 0xff); - c7_pci_write_config8(dev, 0x64, 0xff); - c7_pci_write_config8(dev, 0x65, 0x0f); - /* Read Line Burst DRDY# Timing Control */ - c7_pci_write_config8(dev, 0x66, 0xff); - c7_pci_write_config8(dev, 0x67, 0x30); - - /* Host Bus I/O Circuit (see datasheet) */ - /* Host Address Pullup/down Driving */ - c7_pci_write_config8(dev, 0x70, 0x11); - c7_pci_write_config8(dev, 0x71, 0x11); - c7_pci_write_config8(dev, 0x72, 0x11); - c7_pci_write_config8(dev, 0x73, 0x11); - /* Miscellaneous Control */ - c7_pci_write_config8(dev, 0x74, 0x35); - /* AGTL+ I/O Circuit */ - c7_pci_write_config8(dev, 0x75, 0x28); - /* AGTL+ Compensation Status */ - c7_pci_write_config8(dev, 0x76, 0x74); - /* AGTL+ Auto Compensation Offest */ - c7_pci_write_config8(dev, 0x77, 0x00); - /* Host FSB CKG Control */ - c7_pci_write_config8(dev, 0x78, 0x0a); - /* Address/Address Clock Output Delay Control */ - c7_pci_write_config8(dev, 0x79, 0xaa); - /* Address Strobe Input Delay Control */ - c7_pci_write_config8(dev, 0x7a, 0x24); - /* Address CKG Rising/Falling Time Control */ - c7_pci_write_config8(dev, 0x7b, 0xaa); - /* Address CKG Clock Rising/Falling Time Control */ - c7_pci_write_config8(dev, 0x7c, 0x00); - /* Undefined (can't remember why I did this) */ - c7_pci_write_config8(dev, 0x7d, 0x6d); - c7_pci_write_config8(dev, 0x7e, 0x00); - c7_pci_write_config8(dev, 0x7f, 0x00); - c7_pci_write_config8(dev, 0x80, 0x1b); - c7_pci_write_config8(dev, 0x81, 0x0a); - c7_pci_write_config8(dev, 0x82, 0x0a); - c7_pci_write_config8(dev, 0x83, 0x0a); -} - -/** - * Set up DRAM size according to SPD data. Eventually, DRAM timings should be - * done in a similar manner. - * - * @param ctrl The northbridge devices and SPD addresses. - */ -static void sdram_set_size(const struct mem_controller *ctrl) -{ - u8 density, ranks, result, col; - - ranks = spd_read_byte(ctrl->channel0[0], SPD_NUM_DIMM_BANKS); - ranks = (ranks & 0x07) + 1; - density = spd_read_byte(ctrl->channel0[0], - SPD_DENSITY_OF_EACH_ROW_ON_MODULE); - switch (density) { - case 0x80: - result = 0x08; /* 512MB / 64MB = 0x08 */ - break; - case 0x40: - result = 0x04; - break; - case 0x20: - result = 0x02; - break; - case 0x10: - result = 0xff; /* 16GB */ - break; - case 0x08: - result = 0xff; /* 8GB */ - break; - case 0x04: - result = 0xff; /* 4GB */ - break; - case 0x02: - result = 0x20; /* 2GB */ - break; - case 0x01: - result = 0x10; /* 1GB */ - break; - default: - result = 0; - } - - switch (result) { - case 0xff: - die("DRAM module size too big, not supported by CN700\n"); - break; - case 0: - die("DRAM module has unknown density\n"); - break; - default: - printk(BIOS_DEBUG, "Found %iMB of ram\n", result * ranks * 64); - } - - pci_write_config8(ctrl->d0f3, 0x40, result); - pci_write_config8(ctrl->d0f3, 0x48, 0x00); - if (ranks == 2) { - pci_write_config8(ctrl->d0f3, 0x41, result * ranks); - pci_write_config8(ctrl->d0f3, 0x49, result); - } - /* Size mirror */ - pci_write_config8(ctrl->d0f7, 0xe5, (result * ranks) << 2); - pci_write_config8(ctrl->d0f7, 0x57, (result * ranks) << 2); - /* Low Top Address */ - pci_write_config8(ctrl->d0f3, 0x84, 0x00); - pci_write_config8(ctrl->d0f3, 0x85, (result * ranks) << 2); - pci_write_config8(ctrl->d0f3, 0x88, (result * ranks) << 2); - - /* Physical-Virtual Mapping */ - if (ranks == 2) - pci_write_config8(ctrl->d0f3, 0x54, - 1 << 7 | 0 << 4 | 1 << 3 | 1 << 0); - if (ranks == 1) - pci_write_config8(ctrl->d0f3, 0x54, 1 << 7 | 0 << 4); - pci_write_config8(ctrl->d0f3, 0x55, 0x00); - /* Virtual rank interleave, disable */ - pci_write_config32(ctrl->d0f3, 0x58, 0x00); - - /* MA Map Type */ - result = spd_read_byte(ctrl->channel0[0], SPD_NUM_BANKS_PER_SDRAM); - if (result == 8) { - col = spd_read_byte(ctrl->channel0[0], SPD_NUM_COLUMNS); - switch (col) { - case 10: - pci_write_config8(ctrl->d0f3, 0x50, 0xa0); - break; - case 11: - pci_write_config8(ctrl->d0f3, 0x50, 0xc0); - break; - case 12: - pci_write_config8(ctrl->d0f3, 0x50, 0xe0); - break; - } - } else if (result == 4) { - col = spd_read_byte(ctrl->channel0[0], SPD_NUM_COLUMNS); - switch (col) { - case 9: - pci_write_config8(ctrl->d0f3, 0x50, 0x00); - break; - case 10: - pci_write_config8(ctrl->d0f3, 0x50, 0x20); - break; - case 11: - pci_write_config8(ctrl->d0f3, 0x50, 0x40); - break; - case 12: - pci_write_config8(ctrl->d0f3, 0x50, 0x60); - break; - } - } - pci_write_config8(ctrl->d0f3, 0x51, 0x00); -} - -/** - * Set up various RAM and other control registers statically. Some of these may - * not be needed, other should be done with SPD info, but that's a project for - * the future. - */ -static void sdram_set_registers(const struct mem_controller *ctrl) -{ - u8 reg; - - /* Set WR = 5 */ - pci_write_config8(ctrl->d0f3, 0x61, 0xe0); - /* Set CAS = 4 */ - pci_write_config8(ctrl->d0f3, 0x62, 0xfa); - /* DRAM timing-3 */ - pci_write_config8(ctrl->d0f3, 0x63, 0xca); - /* DRAM timing-4 */ - pci_write_config8(ctrl->d0f3, 0x64, 0xcc); - /* DIMM command / Address Selection */ - pci_write_config8(ctrl->d0f3, 0x67, 0x00); - /* Disable cross bank/multi page mode */ - pci_write_config8(ctrl->d0f3, 0x69, 0x00); - /* Disable refresh now */ - pci_write_config8(ctrl->d0f3, 0x6a, 0x00); - - /* Frequency 100 MHz */ - pci_write_config8(ctrl->d0f3, 0x90, 0x00); - pci_write_config8(ctrl->d0f2, 0x57, 0x18); - /* Allow manual DLL reset */ - pci_write_config8(ctrl->d0f3, 0x6b, 0x10); - - /* Bank/Rank Interleave Address Select */ - pci_write_config8(ctrl->d0f3, 0x52, 0x33); - pci_write_config8(ctrl->d0f3, 0x53, 0x3f); - - /* Set to DDR2 SDRAM, BL = 8 (0xc8, 0xc0 for bl = 4) */ - pci_write_config8(ctrl->d0f3, 0x6c, 0xc8); - - /* DRAM Bus Turn-Around Setting */ - pci_write_config8(ctrl->d0f3, 0x60, 0x03); - /* DRAM Arbitration Control */ - pci_write_config8(ctrl->d0f3, 0x66, 0x80); - /* - * DQS Tuning: testing on a couple different boards has shown this is - * static, or close enough that it can be. Which is good, because the - * tuning function used too many registers. - */ - /* DQS Output Delay for Channel A */ - pci_write_config8(ctrl->d0f3, 0x70, 0x00); - /* MD Output Delay for Channel A */ - pci_write_config8(ctrl->d0f3, 0x71, 0x01); - pci_write_config8(ctrl->d0f3, 0x73, 0x01); - - /* DRAM arbitration timer */ - pci_write_config8(ctrl->d0f3, 0x65, 0xd9); - - /* DRAM signal timing control */ - pci_write_config8(ctrl->d0f3, 0x74, 0x01); - pci_write_config8(ctrl->d0f3, 0x75, 0x01); - pci_write_config8(ctrl->d0f3, 0x76, 0x06); - pci_write_config8(ctrl->d0f3, 0x77, 0x92); - pci_write_config8(ctrl->d0f3, 0x78, 0x83); - pci_write_config8(ctrl->d0f3, 0x79, 0x83); - pci_write_config8(ctrl->d0f3, 0x7a, 0x00); - pci_write_config8(ctrl->d0f3, 0x7b, 0x10); - - /* DRAM clocking control */ - pci_write_config8(ctrl->d0f3, 0x91, 0x01); - /* CS/CKE Clock Phase Control */ - pci_write_config8(ctrl->d0f3, 0x92, 0x02); - /* SCMD/MA Clock Phase Control */ - pci_write_config8(ctrl->d0f3, 0x93, 0x02); - /* DCLKO Feedback Mode Output Control */ - pci_write_config8(ctrl->d0f3, 0x94, 0x00); - pci_write_config8(ctrl->d0f3, 0x9d, 0x0f); - - /* SDRAM ODT Control */ - pci_write_config8(ctrl->d0f3, 0xda, 0x80); - /* Channel A DQ/DQS CKG Output Delay Control */ - pci_write_config8(ctrl->d0f3, 0xdc, 0x54); - /* Channel A DQ/DQS CKG Output Delay Control */ - pci_write_config8(ctrl->d0f3, 0xdd, 0x55); - /* ODT lookup table */ - pci_write_config8(ctrl->d0f3, 0xd8, 0x01); - pci_write_config8(ctrl->d0f3, 0xd9, 0x0a); - - /* DDR SDRAM control */ - pci_write_config8(ctrl->d0f3, 0x6d, 0xc0); - pci_write_config8(ctrl->d0f3, 0x6f, 0x41); - - /* DQ/DQS Strength Control */ - pci_write_config8(ctrl->d0f3, 0xd0, 0xaa); - - /* Compensation Control */ - pci_write_config8(ctrl->d0f3, 0xd3, 0x01); /* Enable autocompensation */ - /* ODT (some are set with driving select above) */ - pci_write_config8(ctrl->d0f3, 0xd4, 0x80); - pci_write_config8(ctrl->d0f3, 0xd5, 0x8a); - /* Memory Pads Driving and Range Select */ - pci_write_config8(ctrl->d0f3, 0xd6, 0xaa); - - pci_write_config8(ctrl->d0f3, 0xe0, 0xee); - pci_write_config8(ctrl->d0f3, 0xe2, 0xac); - pci_write_config8(ctrl->d0f3, 0xe4, 0x66); - pci_write_config8(ctrl->d0f3, 0xe6, 0x33); - pci_write_config8(ctrl->d0f3, 0xe8, 0x86); - /* DQS / DQ CKG Duty Cycle Control */ - pci_write_config8(ctrl->d0f3, 0xec, 0x00); - /* MCLK Output Duty Control */ - pci_write_config8(ctrl->d0f3, 0xee, 0x00); - /* DQS CKG Input Delay Control */ - pci_write_config8(ctrl->d0f3, 0xef, 0x10); - - /* DRAM duty control */ - pci_write_config8(ctrl->d0f3, 0xed, 0x10); - - /* SMM and APIC decoding, we do not use SMM */ - reg = 0x29; - pci_write_config8(ctrl->d0f3, 0x86, reg); - /* SMM and APIC decoding mirror */ - pci_write_config8(ctrl->d0f7, 0xe6, reg); - - /* DRAM module configuration */ - pci_write_config8(ctrl->d0f3, 0x6e, 0x89); -} - -static void sdram_set_post(const struct mem_controller *ctrl) -{ - pci_devfn_t dev = ctrl->d0f3; - - /* Enable multipage mode. */ - pci_write_config8(dev, 0x69, 0x03); - - /* Enable refresh. */ - pci_write_config8(dev, 0x6a, 0x32); - - /* VGA device. */ - pci_write_config16(dev, 0xa0, (1 << 15)); - pci_write_config16(dev, 0xa4, 0x0010); -} - -static void sdram_enable(pci_devfn_t dev, u8 *rank_address) -{ - u8 i; - - /* 1. Apply NOP. */ - PRINT_DEBUG_MEM("RAM Enable 1: Apply NOP\n"); - do_ram_command(dev, RAM_COMMAND_NOP); - udelay(100); - read32(rank_address + 0x10); - - /* 2. Precharge all. */ - udelay(400); - PRINT_DEBUG_MEM("RAM Enable 2: Precharge all\n"); - do_ram_command(dev, RAM_COMMAND_PRECHARGE); - read32(rank_address + 0x10); - - /* 3. Mode register set. */ - PRINT_DEBUG_MEM("RAM Enable 3: Mode register set\n"); - do_ram_command(dev, RAM_COMMAND_MRS); - read32(rank_address + 0x120000); /* EMRS DLL Enable */ - read32(rank_address + 0x800); /* MRS DLL Reset */ - - /* 4. Precharge all again. */ - PRINT_DEBUG_MEM("RAM Enable 4: Precharge all\n"); - do_ram_command(dev, RAM_COMMAND_PRECHARGE); - read32(rank_address + 0x0); - - /* 5. Perform 8 refresh cycles. Wait tRC each time. */ - PRINT_DEBUG_MEM("RAM Enable 5: CBR\n"); - do_ram_command(dev, RAM_COMMAND_CBR); - for (i = 0; i < 8; i++) { - read32(rank_address + 0x20); - udelay(100); - } - - /* 6. Mode register set. */ - PRINT_DEBUG_MEM("RAM Enable 6: Mode register set\n"); - /* Safe value for now, BL = 8, WR = 5, CAS = 4 */ - /* - * (E)MRS values are from the BPG. No direct explanation is given, but - * they should somehow conform to the JEDEC DDR2 SDRAM Specification - * (JESD79-2C). - */ - do_ram_command(dev, RAM_COMMAND_MRS); - read32(rank_address + 0x002258); /* MRS command */ - read32(rank_address + 0x121c20); /* EMRS OCD Default */ - read32(rank_address + 0x120020); /* EMRS OCD Calibration Mode Exit */ - - /* 8. Normal operation */ - PRINT_DEBUG_MEM("RAM Enable 7: Normal operation\n"); - do_ram_command(dev, RAM_COMMAND_NORMAL); - read32(rank_address + 0x30); -} - -/* - * Support one DIMM with up to 2 ranks. - */ -void ddr_ram_setup(const struct mem_controller *ctrl) -{ - u8 reg; - - c7_cpu_setup(ctrl->d0f2); - sdram_set_registers(ctrl); - sdram_set_size(ctrl); - sdram_enable(ctrl->d0f3, (u8 *)0); - reg = pci_read_config8(ctrl->d0f3, 0x41); - if (reg != 0) - sdram_enable(ctrl->d0f3, - (u8 *)(pci_read_config8(ctrl->d0f3, 0x40) << 26)); - sdram_set_post(ctrl); -} diff --git a/src/northbridge/via/cn700/raminit.h b/src/northbridge/via/cn700/raminit.h deleted file mode 100644 index d78ad1fd0c..0000000000 --- a/src/northbridge/via/cn700/raminit.h +++ /dev/null @@ -1,33 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2007 Corey Osgood <corey_osgood@verizon.net> - * - * 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. - */ - -#ifndef RAMINIT_H -#define RAMINIT_H - -#define DIMM_SOCKETS 1 /* Only one works, for now. */ - -struct mem_controller { - pci_devfn_t d0f0, d0f2, d0f3, d0f4, d0f7, d1f0; - u8 channel0[DIMM_SOCKETS]; -}; - -void ddr_ram_setup(const struct mem_controller *ctrl); - -/* mainboard specific */ -int spd_read_byte(unsigned device, unsigned address); -void main(unsigned long bist); - -#endif diff --git a/src/northbridge/via/cn700/vga.c b/src/northbridge/via/cn700/vga.c deleted file mode 100644 index 493159abe6..0000000000 --- a/src/northbridge/via/cn700/vga.c +++ /dev/null @@ -1,146 +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. - */ - -/* - * Note: Some of the VGA control registers are located on the memory - * controller. Registers are set both in raminit.c and northbridge.c. - */ - -#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 <stdlib.h> -#include <string.h> -#include <cpu/cpu.h> -#include <arch/interrupt.h> -#include "northbridge.h" -#include "cn700.h" -#include <x86emu/regs.h> - -static int via_cn700_int15_handler(void) -{ - int res = 0; - printk(BIOS_DEBUG, "via_cn700_int15_handler\n"); - switch(X86_EAX & 0xffff) { - case 0x5f19: - break; - case 0x5f18: - X86_EAX = 0x5f; - X86_EBX = 0x545; // MCLK = 133, 32M frame buffer, 256 M main memory - X86_ECX = 0x060; - res = 1; - break; - case 0x5f00: - X86_EAX = 0x8600; - break; - case 0x5f01: - X86_EAX = 0x5f; - X86_ECX = (X86_ECX & 0xffffff00 ) | 2; // panel type = 2 = 1024 * 768 - res = 1; - break; - case 0x5f02: - X86_EAX = 0x5f; - X86_EBX = (X86_EBX & 0xffff0000) | 2; - X86_ECX = (X86_ECX & 0xffff0000) | 0x401; // PAL + crt only - X86_EDX = (X86_EDX & 0xffff0000) | 0; // TV Layout - default - res = 1; - break; - case 0x5f0f: - X86_EAX = 0x860f; - break; - default: - printk(BIOS_DEBUG, "Unknown INT15 function %04x!\n", - X86_EAX & 0xffff); - break; - } - return res; -} - -static void vga_init(struct device *dev) -{ - u8 reg8; - - mainboard_interrupt_handlers(0x15, &via_cn700_int15_handler); - -#undef OLD_BOCHS_METHOD -#ifdef OLD_BOCHS_METHOD - printk(BIOS_DEBUG, "Copying BOCHS BIOS to 0xf000\n"); - /* - * Copy BOCHS BIOS from 4G-CONFIG_ROM_SIZE-64k (in flash) to 0xf0000 (in RAM) - * This is for compatibility with the VGA ROM's BIOS callbacks. - */ - memcpy((void *)0xf0000, (const void *)(0xffffffff - CONFIG_ROM_SIZE - 0xffff), 0x10000); -#endif - - /* Set memory rate to 200 MHz. */ - outb(0x3d, CRTM_INDEX); - reg8 = inb(CRTM_DATA); - reg8 &= 0x0f; - reg8 |= (0x1 << 4); - outb(0x3d, CRTM_INDEX); - outb(reg8, CRTM_DATA); - - /* Set framebuffer size. */ - reg8 = (CONFIG_VIDEO_MB / 4); - outb(0x39, SR_INDEX); - outb(reg8, SR_DATA); - - pci_write_config8(dev, 0x04, 0x07); - pci_write_config8(dev, 0x0d, 0x20); - pci_write_config32(dev, 0x10, 0xf4000008); - pci_write_config32(dev, 0x14, 0xfb000000); - - printk(BIOS_DEBUG, "Initializing VGA...\n"); - - pci_dev_init(dev); - - /* It's not clear if these need to be programmed before or after - * the VGA BIOS runs. Try both, clean up later. */ - /* Set memory rate to 200 MHz (again). */ - outb(0x3d, CRTM_INDEX); - reg8 = inb(CRTM_DATA); - reg8 &= 0x0f; - reg8 |= (0x1 << 4); - outb(0x3d, CRTM_INDEX); - outb(reg8, CRTM_DATA); - - /* Set framebuffer size (again). */ - reg8 = (CONFIG_VIDEO_MB / 4); - outb(0x39, SR_INDEX); - outb(reg8, SR_DATA); - -#ifdef OLD_BOCHS_METHOD - /* Clear the BOCHS BIOS out of memory, so it doesn't confuse Linux. */ - memset((void *)0xf0000, 0, 0x10000); -#endif -} - -static const struct device_operations vga_operations = { - .read_resources = pci_dev_read_resources, - .set_resources = pci_dev_set_resources, - .enable_resources = pci_dev_enable_resources, - .init = vga_init, - .ops_pci = 0, -}; - -static const struct pci_driver vga_driver __pci_driver = { - .ops = &vga_operations, - .vendor = PCI_VENDOR_ID_VIA, - .device = PCI_DEVICE_ID_VIA_CN700_VGA, -}; |