| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2011 Advanced Micro Devices, 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. |
| */ |
| |
| #include <stdlib.h> |
| #include <console/console.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <arch/io.h> |
| #include <device/pci_def.h> |
| #include <southbridge/amd/sb800/sb800.h> |
| #include <arch/acpi.h> |
| #include <southbridge/amd/cimx/sb800/SBPLATFORM.h> |
| #include <vendorcode/amd/cimx/sb800/OEM.h> /* SMBUS0_BASE_ADDRESS */ |
| #include <southbridge/amd/cimx/sb800/gpio_oem.h> |
| #include "mainboard/lippert/frontrunner-af/sema.h" |
| |
| static void init(struct device *dev) |
| { |
| volatile u8 *spi_base; // base addr of Hudson's SPI host controller |
| printk(BIOS_DEBUG, CONFIG_MAINBOARD_PART_NUMBER " ENTER %s\n", __func__); |
| |
| /* Init Hudson GPIOs. */ |
| printk(BIOS_DEBUG, "Init FCH GPIOs @ 0x%08x\n", ACPI_MMIO_BASE+GPIO_BASE); |
| FCH_IOMUX(50) = 2; // GPIO50: FCH_ARST#_GATE resets stuck PCIe devices |
| FCH_GPIO (50) = 0xC0; // = output set to 1 as it's never needed |
| FCH_IOMUX(197) = 2; // GPIO197: BIOS_DEFAULTS# |
| FCH_GPIO (197) = 0x28; // = input, disable int. pull-up |
| FCH_IOMUX(56) = 1; // GPIO58-56: REV_ID2-0 |
| FCH_GPIO (56) = 0x28; // = inputs, disable int. pull-ups |
| FCH_IOMUX(57) = 1; |
| FCH_GPIO (57) = 0x28; |
| FCH_IOMUX(58) = 1; |
| FCH_GPIO (58) = 0x28; |
| FCH_IOMUX(187) = 2; // GPIO187,188,166,GPO160: GPO0-3 on COM Express connector |
| FCH_GPIO (187) = 0x08; // = outputs, disable PUs, default to 0 |
| FCH_IOMUX(188) = 2; |
| FCH_GPIO (188) = 0x08; |
| FCH_IOMUX(166) = 2; |
| FCH_GPIO (166) = 0x08; |
| // needed to make GPO160 work (Hudson Register Reference section 2.3.6.1) |
| FCH_PMIO(0xDC) &= ~0x80; FCH_PMIO(0xE6) = (FCH_PMIO(0xE6) & ~0x02) | 0x01; |
| FCH_IOMUX(160) = 1; |
| FCH_GPIO (160) = 0x08; |
| FCH_IOMUX(189) = 1; // GPIO189-192: GPI0-3 on COM Express connector |
| FCH_IOMUX(190) = 1; // default to inputs with int. PU |
| FCH_IOMUX(191) = 1; |
| FCH_IOMUX(192) = 1; |
| if (!fch_gpio_state(197)) // just in case anyone cares |
| printk(BIOS_INFO, "BIOS_DEFAULTS jumper is present.\n"); |
| printk(BIOS_INFO, "Board revision ID: %u\n", |
| fch_gpio_state(58)<<2 | fch_gpio_state(57)<<1 | fch_gpio_state(56)); |
| |
| /* Lower SPI speed from default 66 to 22 MHz for SST 25VF032B */ |
| spi_base = (u8*)((uintptr_t)pci_read_config32(dev_find_slot(0, PCI_DEVFN(0x14, 3)), 0xA0) & 0xFFFFFFE0); |
| spi_base[0x0D] = (spi_base[0x0D] & ~0x30) | 0x20; // NormSpeed in SPI_Cntrl1 register |
| |
| /* Notify the SMC we're alive and kicking, or after a while it will |
| * effect a power cycle and switch to the alternate BIOS chip. |
| * Should be done as late as possible. |
| * Failure here does not matter if watchdog was already disabled, |
| * by configuration or previous boot, so ignore return value. |
| */ |
| sema_send_alive(); |
| |
| printk(BIOS_DEBUG, CONFIG_MAINBOARD_PART_NUMBER " EXIT %s\n", __func__); |
| } |
| |
| /********************************************** |
| * Enable the dedicated functions of the board. |
| **********************************************/ |
| static void mainboard_enable(struct device *dev) |
| { |
| printk(BIOS_INFO, "Mainboard " CONFIG_MAINBOARD_PART_NUMBER " Enable.\n"); |
| dev->ops->init = init; |
| |
| /* enable GPP CLK0 thru CLK1 */ |
| /* disable GPP CLK2 thru SLT_GFX_CLK */ |
| u8 *misc_mem_clk_cntrl = (u8 *)(ACPI_MMIO_BASE + MISC_BASE); |
| write8(misc_mem_clk_cntrl + 0, 0xFF); |
| write8(misc_mem_clk_cntrl + 1, 0x00); |
| write8(misc_mem_clk_cntrl + 2, 0x00); |
| write8(misc_mem_clk_cntrl + 3, 0x00); |
| write8(misc_mem_clk_cntrl + 4, 0x00); |
| |
| /* |
| * Initialize ASF registers to an arbitrary address because someone |
| * long ago set things up this way inside the SPD read code. The |
| * SPD read code has been made generic and moved out of the board |
| * directory, so the ASF init is being done here. |
| */ |
| pm_iowrite(0x29, 0x80); |
| pm_iowrite(0x28, 0x61); |
| } |
| |
| struct chip_operations mainboard_ops = { |
| .enable_dev = mainboard_enable, |
| }; |