diff options
author | Arthur Heymans <arthur@aheymans.xyz> | 2019-11-19 17:23:12 +0100 |
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committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2019-11-20 19:01:05 +0000 |
commit | 24284270c73ba4e35af10ea9054f084c989dff52 (patch) | |
tree | e9a61270217da63a4ca1e849c1dee7cda0fadd58 /src/southbridge/amd/sb700/lpc.c | |
parent | ecebee0561cf3e06bfba55509a5b7bebdb54d998 (diff) |
sb/amd/sb700: Drop support
Relocatable ramstage, postcar stage and C_ENVIRONMENT_BOOTBLOCK are
now mandatory features, which platforms using this code lack.
Change-Id: Iffa4f54b2d1b43b6710447e69061c6ed433bff1d
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36967
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/southbridge/amd/sb700/lpc.c')
-rw-r--r-- | src/southbridge/amd/sb700/lpc.c | 292 |
1 files changed, 0 insertions, 292 deletions
diff --git a/src/southbridge/amd/sb700/lpc.c b/src/southbridge/amd/sb700/lpc.c deleted file mode 100644 index 5d6d1cd85a..0000000000 --- a/src/southbridge/amd/sb700/lpc.c +++ /dev/null @@ -1,292 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2010 Advanced Micro Devices, Inc. - * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering - * - * 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. - */ - -#include <console/console.h> -#include <device/device.h> -#include <device/pci.h> -#include <device/pnp.h> -#include <device/pci_ids.h> -#include <device/pci_ops.h> -#include <pc80/mc146818rtc.h> -#include <pc80/i8254.h> -#include <pc80/i8259.h> -#include <arch/acpi.h> -#include <pc80/isa-dma.h> -#include <arch/ioapic.h> -#include <cpu/amd/powernow.h> -#include "sb700.h" - -static void lpc_init(struct device *dev) -{ - u8 byte; - u32 dword; - struct device *sm_dev; - - printk(BIOS_SPEW, "%s\n", __func__); - - /* Enable the LPC Controller */ - sm_dev = pcidev_on_root(0x14, 0); - dword = pci_read_config32(sm_dev, 0x64); - dword |= 1 << 20; - pci_write_config32(sm_dev, 0x64, dword); - - /* Initialize isa dma */ -#if CONFIG(SOUTHBRIDGE_AMD_SB700_SKIP_ISA_DMA_INIT) - printk(BIOS_DEBUG, "Skipping isa_dma_init() to avoid getting stuck.\n"); -#else - isa_dma_init(); -#endif - - if (!CONFIG(SOUTHBRIDGE_AMD_SB700_DISABLE_ISA_DMA)) { - /* Enable DMA transaction on the LPC bus */ - byte = pci_read_config8(dev, 0x40); - byte |= (1 << 2); - pci_write_config8(dev, 0x40, byte); - } - - /* Disable the timeout mechanism on LPC */ - byte = pci_read_config8(dev, 0x48); - byte &= ~(1 << 7); - pci_write_config8(dev, 0x48, byte); - - /* Disable LPC MSI Capability */ - byte = pci_read_config8(dev, 0x78); - byte &= ~(1 << 1); -#if CONFIG(SOUTHBRIDGE_AMD_SUBTYPE_SP5100) - /* Disable FlowContrl, Always service the request from Host - * whenever there is a request from Host pending - */ - byte &= ~(1 << 0); -#endif - pci_write_config8(dev, 0x78, byte); - - cmos_check_update_date(); - - setup_i8259(); /* Initialize i8259 pic */ - setup_i8254(); /* Initialize i8254 timers */ -} - -static void sb700_lpc_read_resources(struct device *dev) -{ - struct resource *res; - - /* Get the normal pci resources of this device */ - pci_dev_read_resources(dev); /* We got one for APIC, or one more for TRAP */ - - pci_get_resource(dev, 0xA0); /* SPI ROM base address */ - - /* Add an extra subtractive resource for both memory and I/O. */ - res = new_resource(dev, IOINDEX_SUBTRACTIVE(0, 0)); - res->base = 0; - res->size = 0x1000; - res->flags = IORESOURCE_IO | IORESOURCE_SUBTRACTIVE | - IORESOURCE_ASSIGNED | IORESOURCE_FIXED; - - res = new_resource(dev, IOINDEX_SUBTRACTIVE(1, 0)); - res->base = 0xff800000; - res->size = 0x00800000; /* 8 MB for flash */ - res->flags = IORESOURCE_MEM | IORESOURCE_SUBTRACTIVE | - IORESOURCE_ASSIGNED | IORESOURCE_FIXED; - - res = new_resource(dev, 3); /* IOAPIC */ - res->base = IO_APIC_ADDR; - res->size = 0x00001000; - res->flags = IORESOURCE_MEM | IORESOURCE_ASSIGNED | IORESOURCE_FIXED; - - compact_resources(dev); -} - -static void sb700_lpc_set_resources(struct device *dev) -{ - struct resource *res; - - pci_dev_set_resources(dev); - - /* Special case. SPI Base Address. The SpiRomEnable should be set. */ - res = find_resource(dev, 0xA0); - pci_write_config32(dev, 0xA0, res->base | 1 << 1); -} - -/** - * @brief Enable resources for children devices - * - * @param dev the device whose children's resources are to be enabled - * - */ -static void sb700_lpc_enable_childrens_resources(struct device *dev) -{ - struct bus *link; - u32 reg, reg_x; - int var_num = 0; - u16 reg_var[3] = {0x0, 0x0, 0x0}; - u8 wiosize = pci_read_config8(dev, 0x74); - - reg = pci_read_config32(dev, 0x44); - reg_x = pci_read_config32(dev, 0x48); - - for (link = dev->link_list; link; link = link->next) { - struct device *child; - for (child = link->children; child; - child = child->sibling) { - if (!(child->enabled - && (child->path.type == DEVICE_PATH_PNP))) - continue; - - struct resource *res; - for (res = child->resource_list; res; res = res->next) { - u32 base, end; /* don't need long long */ - if (!(res->flags & IORESOURCE_IO)) - continue; - base = res->base; - end = resource_end(res); - printk(BIOS_DEBUG, "sb700 lpc decode:%s," - " base=0x%08x, end=0x%08x\n", - dev_path(child), base, end); - switch (base) { - case 0x60: /* KB */ - case 0x64: /* MS */ - reg |= (1 << 29); - break; - case 0x3f8: /* COM1 */ - reg |= (1 << 6); - break; - case 0x2f8: /* COM2 */ - reg |= (1 << 7); - break; - case 0x378: /* Parallel 1 */ - reg |= (1 << 0); - reg |= (1 << 1); /* + 0x778 for ECP */ - break; - case 0x3f0: /* FD0 */ - reg |= (1 << 26); - break; - case 0x220: /* Audio 0 */ - reg |= (1 << 8); - break; - case 0x300: /* Midi 0 */ - reg |= (1 << 18); - break; - case 0x400: - reg_x |= (1 << 16); - break; - case 0x480: - reg_x |= (1 << 17); - break; - case 0x500: - reg_x |= (1 << 18); - break; - case 0x580: - reg_x |= (1 << 19); - break; - case 0x4700: - reg_x |= (1 << 22); - break; - case 0xfd60: - reg_x |= (1 << 23); - break; - default: - /* only 3 var ; compact them ? */ - if (var_num >= 3) - continue; - switch (var_num) { - case 0: - reg_x |= (1 << 2); - if ((end - base) < 16) - wiosize |= (1 << 0); - break; - case 1: - reg_x |= (1 << 24); - if ((end - base) < 16) - wiosize |= (1 << 2); - break; - case 2: - reg_x |= (1 << 25); - reg_x |= (1 << 24); - if ((end - base) < 16) - wiosize |= (1 << 3); - break; - } - reg_var[var_num++] = base & 0xffff; - } - } - } - } - pci_write_config32(dev, 0x44, reg); - pci_write_config32(dev, 0x48, reg_x); - /* Set WideIO for as many IOs found (fall through is on purpose) */ - switch (var_num) { - case 3: - pci_write_config16(dev, 0x90, reg_var[2]); - /* fall through */ - case 2: - pci_write_config16(dev, 0x66, reg_var[1]); - /* fall through */ - case 1: - pci_write_config16(dev, 0x64, reg_var[0]); - break; - } - pci_write_config8(dev, 0x74, wiosize); -} - -static void sb700_lpc_enable_resources(struct device *dev) -{ - pci_dev_enable_resources(dev); - sb700_lpc_enable_childrens_resources(dev); -} - -#if CONFIG(HAVE_ACPI_TABLES) - -static void southbridge_acpi_fill_ssdt_generator(struct device *device) { - amd_generate_powernow(ACPI_CPU_CONTROL, 6, 1); -} - -static const char *lpc_acpi_name(const struct device *dev) -{ - if (dev->path.type != DEVICE_PATH_PCI) - return NULL; - - switch (dev->path.pci.devfn) { - case PCI_DEVFN(0x14, 3): - return "LPC"; - } - - return NULL; -} -#endif - - -static struct pci_operations lops_pci = { - .set_subsystem = pci_dev_set_subsystem, -}; - -static struct device_operations lpc_ops = { - .read_resources = sb700_lpc_read_resources, - .set_resources = sb700_lpc_set_resources, - .enable_resources = sb700_lpc_enable_resources, -#if CONFIG(HAVE_ACPI_TABLES) - .acpi_name = lpc_acpi_name, - .write_acpi_tables = acpi_write_hpet, - .acpi_fill_ssdt_generator = southbridge_acpi_fill_ssdt_generator, -#endif - .init = lpc_init, - .scan_bus = scan_static_bus, - .ops_pci = &lops_pci, -}; -static const struct pci_driver lpc_driver __pci_driver = { - .ops = &lpc_ops, - .vendor = PCI_VENDOR_ID_ATI, - .device = PCI_DEVICE_ID_ATI_SB700_LPC, -}; |