diff options
Diffstat (limited to 'src/soc/amd/picasso/northbridge.c')
| -rw-r--r-- | src/soc/amd/picasso/northbridge.c | 284 |
1 files changed, 0 insertions, 284 deletions
diff --git a/src/soc/amd/picasso/northbridge.c b/src/soc/amd/picasso/northbridge.c deleted file mode 100644 index 70ad8d102a..0000000000 --- a/src/soc/amd/picasso/northbridge.c +++ /dev/null @@ -1,284 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ - -#include <amdblocks/biosram.h> -#include <device/pci_ops.h> -#include <arch/ioapic.h> -#include <acpi/acpi.h> -#include <acpi/acpigen.h> -#include <cbmem.h> -#include <console/console.h> -#include <cpu/amd/mtrr.h> -#include <cpu/x86/lapic_def.h> -#include <cpu/x86/msr.h> -#include <cpu/amd/msr.h> -#include <device/device.h> -#include <device/pci.h> -#include <device/pci_ids.h> -#include <romstage_handoff.h> -#include <soc/cpu.h> -#include <soc/northbridge.h> -#include <soc/pci_devs.h> -#include <soc/iomap.h> -#include <stdint.h> -#include <string.h> -#include <arch/bert_storage.h> - -#include "chip.h" - -static void set_io_addr_reg(struct device *dev, u32 nodeid, u32 linkn, u32 reg, - u32 io_min, u32 io_max) -{ - u32 tempreg; - - /* io range allocation. Limit */ - tempreg = (nodeid & 0xf) | ((nodeid & 0x30) << (8 - 4)) | (linkn << 4) - | ((io_max & 0xf0) << (12 - 4)); - pci_write_config32(SOC_ADDR_DEV, reg + 4, tempreg); - tempreg = 3 | ((io_min & 0xf0) << (12 - 4)); /* base: ISA and VGA ? */ - pci_write_config32(SOC_ADDR_DEV, reg, tempreg); -} - -static void set_mmio_addr_reg(u32 nodeid, u32 linkn, u32 reg, u32 index, - u32 mmio_min, u32 mmio_max) -{ - u32 tempreg; - - /* io range allocation. Limit */ - tempreg = (nodeid & 0xf) | (linkn << 4) | (mmio_max & 0xffffff00); - pci_write_config32(SOC_ADDR_DEV, reg + 4, tempreg); - tempreg = 3 | (nodeid & 0x30) | (mmio_min & 0xffffff00); - pci_write_config32(SOC_ADDR_DEV, reg, tempreg); -} - -static void read_resources(struct device *dev) -{ - /* - * This MMCONF resource must be reserved in the PCI domain. - * It is not honored by the coreboot resource allocator if it is in - * the CPU_CLUSTER. - */ - mmconf_resource(dev, MMIO_CONF_BASE); -} - -static void set_resource(struct device *dev, struct resource *res, u32 nodeid) -{ - resource_t rbase, rend; - unsigned int reg, link_num; - char buf[50]; - - /* Make certain the resource has actually been set */ - if (!(res->flags & IORESOURCE_ASSIGNED)) - return; - - /* If I have already stored this resource don't worry about it */ - if (res->flags & IORESOURCE_STORED) - return; - - /* Only handle PCI memory and IO resources */ - if (!(res->flags & (IORESOURCE_MEM | IORESOURCE_IO))) - return; - - /* Ensure I am actually looking at a resource of function 1 */ - if ((res->index & 0xffff) < 0x1000) - return; - - /* Get the base address */ - rbase = res->base; - - /* Get the limit (rounded up) */ - rend = resource_end(res); - - /* Get the register and link */ - reg = res->index & 0xfff; /* 4k */ - link_num = IOINDEX_LINK(res->index); - - if (res->flags & IORESOURCE_IO) - set_io_addr_reg(dev, nodeid, link_num, reg, rbase>>8, rend>>8); - else if (res->flags & IORESOURCE_MEM) - set_mmio_addr_reg(nodeid, link_num, reg, - (res->index >> 24), rbase >> 8, rend >> 8); - - res->flags |= IORESOURCE_STORED; - snprintf(buf, sizeof(buf), " <node %x link %x>", - nodeid, link_num); - report_resource_stored(dev, res, buf); -} - -/** - * I tried to reuse the resource allocation code in set_resource() - * but it is too difficult to deal with the resource allocation magic. - */ - -static void create_vga_resource(struct device *dev) -{ - struct bus *link; - - /* find out which link the VGA card is connected, - * we only deal with the 'first' vga card */ - for (link = dev->link_list ; link ; link = link->next) - if (link->bridge_ctrl & PCI_BRIDGE_CTL_VGA) - break; - - /* no VGA card installed */ - if (link == NULL) - return; - - printk(BIOS_DEBUG, "VGA: %s has VGA device\n", dev_path(dev)); - /* Route A0000-BFFFF, IO 3B0-3BB 3C0-3DF */ - pci_write_config32(SOC_ADDR_DEV, D18F1_VGAEN, VGA_ADDR_ENABLE); -} - -static void set_resources(struct device *dev) -{ - struct bus *bus; - struct resource *res; - - - /* do we need this? */ - create_vga_resource(dev); - - /* Set each resource we have found */ - for (res = dev->resource_list ; res ; res = res->next) - set_resource(dev, res, 0); - - for (bus = dev->link_list ; bus ; bus = bus->next) - if (bus->children) - assign_resources(bus); -} - -static void northbridge_fill_ssdt_generator(const struct device *device) -{ - msr_t msr; - char pscope[] = "\\_SB.PCI0"; - - acpigen_write_scope(pscope); - msr = rdmsr(TOP_MEM); - acpigen_write_name_dword("TOM1", msr.lo); - msr = rdmsr(TOP_MEM2); - /* - * Since XP only implements parts of ACPI 2.0, we can't use a qword - * here. - * See http://www.acpi.info/presentations/S01USMOBS169_OS%2520new.ppt - * slide 22ff. - * Shift value right by 20 bit to make it fit into 32bit, - * giving us 1MB granularity and a limit of almost 4Exabyte of memory. - */ - acpigen_write_name_dword("TOM2", (msr.hi << 12) | msr.lo >> 20); - acpigen_pop_len(); -} - -static unsigned long agesa_write_acpi_tables(const struct device *device, - unsigned long current, - acpi_rsdp_t *rsdp) -{ - /* TODO - different mechanism to collect this info for Family 17h */ - return current; -} - -static struct device_operations northbridge_operations = { - .read_resources = read_resources, - .set_resources = set_resources, - .enable_resources = pci_dev_enable_resources, - .acpi_fill_ssdt = northbridge_fill_ssdt_generator, - .write_acpi_tables = agesa_write_acpi_tables, -}; - -static const struct pci_driver family15_northbridge __pci_driver = { - .ops = &northbridge_operations, - .vendor = PCI_VENDOR_ID_AMD, - .device = PCI_DEVICE_ID_AMD_15H_MODEL_707F_NB_HT, -}; - -/* - * Enable VGA cycles. Set memory ranges of the FCH legacy devices (TPM, HPET, - * BIOS RAM, Watchdog Timer, IOAPIC and ACPI) as non-posted. Set remaining - * MMIO to posted. Route all I/O to the southbridge. - */ -void amd_initcpuio(void) -{ - uintptr_t topmem = bsp_topmem(); - uintptr_t base, limit; - - /* Enable legacy video routing: D18F1xF4 VGA Enable */ - pci_write_config32(SOC_ADDR_DEV, D18F1_VGAEN, VGA_ADDR_ENABLE); - - /* Non-posted: range(HPET-LAPIC) or 0xfed00000 through 0xfee00000-1 */ - base = (HPET_BASE_ADDRESS >> 8) | MMIO_WE | MMIO_RE; - limit = (ALIGN_DOWN(LOCAL_APIC_ADDR - 1, 64 * KiB) >> 8) | MMIO_NP; - pci_write_config32(SOC_ADDR_DEV, NB_MMIO_LIMIT_LO(0), limit); - pci_write_config32(SOC_ADDR_DEV, NB_MMIO_BASE_LO(0), base); - - /* Remaining PCI hole posted MMIO: TOM-HPET (TOM through 0xfed00000-1 */ - base = (topmem >> 8) | MMIO_WE | MMIO_RE; - limit = ALIGN_DOWN(HPET_BASE_ADDRESS - 1, 64 * KiB) >> 8; - pci_write_config32(SOC_ADDR_DEV, NB_MMIO_LIMIT_LO(1), limit); - pci_write_config32(SOC_ADDR_DEV, NB_MMIO_BASE_LO(1), base); - - /* Route all I/O downstream */ - base = 0 | IO_WE | IO_RE; - limit = ALIGN_DOWN(0xffff, 4 * KiB); - pci_write_config32(SOC_ADDR_DEV, NB_IO_LIMIT(0), limit); - pci_write_config32(SOC_ADDR_DEV, NB_IO_BASE(0), base); -} - -void fam15_finalize(void *chip_info) -{ - u32 value; - - /* disable No Snoop */ - value = pci_read_config32(SOC_HDA0_DEV, HDA_DEV_CTRL_STATUS); - value &= ~HDA_NO_SNOOP_EN; - pci_write_config32(SOC_HDA0_DEV, HDA_DEV_CTRL_STATUS, value); -} - -void domain_set_resources(struct device *dev) -{ - uint64_t uma_base = get_uma_base(); - uint32_t uma_size = get_uma_size(); - uint32_t mem_useable = (uintptr_t)cbmem_top(); - msr_t tom = rdmsr(TOP_MEM); - msr_t high_tom = rdmsr(TOP_MEM2); - uint64_t high_mem_useable; - int idx = 0x10; - - /* 0x0 -> 0x9ffff */ - ram_resource(dev, idx++, 0, 0xa0000 / KiB); - - /* 0xa0000 -> 0xbffff: legacy VGA */ - mmio_resource(dev, idx++, 0xa0000 / KiB, 0x20000 / KiB); - - /* 0xc0000 -> 0xfffff: Option ROM */ - reserved_ram_resource(dev, idx++, 0xc0000 / KiB, 0x40000 / KiB); - - /* - * 0x100000 (1MiB) -> low top useable RAM - * cbmem_top() accounts for low UMA and TSEG if they are used. - */ - ram_resource(dev, idx++, (1 * MiB) / KiB, - (mem_useable - (1 * MiB)) / KiB); - - /* Low top useable RAM -> Low top RAM (bottom pci mmio hole) */ - reserved_ram_resource(dev, idx++, mem_useable / KiB, - (tom.lo - mem_useable) / KiB); - - /* If there is memory above 4GiB */ - if (high_tom.hi) { - /* 4GiB -> high top useable */ - if (uma_base >= (4ull * GiB)) - high_mem_useable = uma_base; - else - high_mem_useable = ((uint64_t)high_tom.lo | - ((uint64_t)high_tom.hi << 32)); - - ram_resource(dev, idx++, (4ull * GiB) / KiB, - ((high_mem_useable - (4ull * GiB)) / KiB)); - - /* High top useable RAM -> high top RAM */ - if (uma_base >= (4ull * GiB)) { - reserved_ram_resource(dev, idx++, uma_base / KiB, - uma_size / KiB); - } - } - - assign_resources(dev->link_list); -} |