diff options
Diffstat (limited to 'src/northbridge/via/vx800/northbridge.c')
| -rw-r--r-- | src/northbridge/via/vx800/northbridge.c | 155 |
1 files changed, 0 insertions, 155 deletions
diff --git a/src/northbridge/via/vx800/northbridge.c b/src/northbridge/via/vx800/northbridge.c deleted file mode 100644 index 2f1ddc19c4..0000000000 --- a/src/northbridge/via/vx800/northbridge.c +++ /dev/null @@ -1,155 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2009 One Laptop per Child, Association, 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. - */ - -/* - part of this file is from cx700 port, part of is from cn700 port, - */ - -#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 "vx800.h" - -/* !!FIXME!! This was meant to be a CONFIG option */ -#define VIACONFIG_TOP_SM_SIZE_MB 32 // Set frame buffer 32M for default -/* !!FIXME!! I declared this to fix the build. */ -u8 acpi_sleep_type = 0; - -static void memctrl_init(struct device *dev) -{ -/* - set VGA in uma_ram_setting.c, not in this function. -*/ -} - -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_VX855_MEMCTRL, -}; - -static void pci_domain_set_resources(struct device *dev) -{ - /* - * the order is important to find the correct RAM size. - */ - u8 ramregs[] = { 0x43, 0x42, 0x41, 0x40 }; - struct device *mc_dev; - u32 pci_tolm; - u8 reg; - - printk(BIOS_SPEW, "Entering vx800 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_VX855_MEMCTRL, 0); - - if (mc_dev) { - unsigned long tomk, tolmk; - unsigned char rambits; - u8 i, idx; - - /* - * once the register value is not zero, the ramsize 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; - } -/* -Get memory size and frame buffer from northbridge's registers. -if register with invalid value we set frame buffer size to 32M for default, but it won't happen. -*/ - reg = pci_read_config8(mc_dev, 0xa1); - reg &= 0x70; - reg = reg >> 4; - /* TOP 1M SM Memory */ - if (reg == 0x0) - tomk = (((rambits << 6) - 32 - VIACONFIG_TOP_SM_SIZE_MB) * 1024); // Set frame buffer 32M for default - else - tomk = - (((rambits << 6) - (4 << reg) - - VIACONFIG_TOP_SM_SIZE_MB) * 1024); - - printk(BIOS_SPEW, "tomk is 0x%lx\n", tomk); - /* Compute the Top Of Low Memory, in Kb */ - tolmk = pci_tolm >> 10; - if (tolmk >= tomk) { - /* The PCI hole does does not overlap the memory. */ - tolmk = tomk; - } - /* 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)); - } - assign_resources(dev->link_list); -} - -static struct device_operations pci_domain_ops = { - .read_resources = pci_domain_read_resources, - .set_resources = pci_domain_set_resources, -#if IS_ENABLED(CONFIG_HAVE_ACPI_TABLES) - .write_acpi_tables = acpi_write_hpet, -#endif - .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 VX800 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_vx800_ops = { - CHIP_NAME("VIA VX800 Chipset") - .enable_dev = enable_dev, -}; |