/* * 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. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc. */ #include #include #include #include #include #include #include #include #include #include #include #include #include "SBPLATFORM.h" #include "OEM.h" /* SMBUS0_BASE_ADDRESS */ #include /* Init SIO GPIOs. */ #define SIO_RUNTIME_BASE 0x0E00 static const u16 sio_init_table[] = { // hi=offset, lo=value 0x4BA0, // GP1x: COM1/2 control = RS232, no term, max 115200 0x2300, // GP10: COM1 termination = push/pull output 0x2400, // GP11: COM2 termination = push/pull output 0x2500, // GP12: COM1 RS485 mode = push/pull output 0x2600, // GP13: COM2 RS485 mode = push/pull output 0x2700, // GP14: COM1 speed A = push/pull output 0x2900, // GP15: COM1 speed B = push/pull output 0x2A00, // GP16: COM2 speed A = push/pull output 0x2B00, // GP17: COM2 speed B = push/pull output 0x3904, // GP36 = KBDRST# function 0x4E74, // GP4x: Ethernet enable = on 0x6E84, // GP44: Ethernet enable = open drain output // GP5x = COM2 function instead of GPIO 0x3F05, 0x4005, 0x4105, 0x4204, 0x4305, 0x4404, 0x4505, 0x4604, 0x470C, // GP60 = WDT function 0x5E00, // LED2: Live LED = off 0x4884, // GP61: Live LED = LED2 function 0x5038, // GP6x: USB power = 3x on 0x5580, // GP63: USB power 0/1 = open drain output 0x5680, // GP64: USB power 2/3 = open drain output 0x5780, // GP65: USB power 4/5 = open drain output }; /* Write data block to slave on SMBUS0. */ #define SMB0_STATUS ((SMBUS0_BASE_ADDRESS) + 0) #define SMB0_CONTROL ((SMBUS0_BASE_ADDRESS) + 2) #define SMB0_HOSTCMD ((SMBUS0_BASE_ADDRESS) + 3) #define SMB0_ADDRESS ((SMBUS0_BASE_ADDRESS) + 4) #define SMB0_DATA0 ((SMBUS0_BASE_ADDRESS) + 5) #define SMB0_BLOCKDATA ((SMBUS0_BASE_ADDRESS) + 7) static int smb_write_blk(u8 slave, u8 command, u8 length, const u8 *data) { __outbyte(SMB0_STATUS, 0x1E); // clear error status __outbyte(SMB0_ADDRESS, slave & ~1); // slave addr + direction=out __outbyte(SMB0_HOSTCMD, command); // or destination offset __outbyte(SMB0_DATA0, length); // sent before data __inbyte(SMB0_CONTROL); // reset block data array while (length--) __outbyte(SMB0_BLOCKDATA, *(data++)); __outbyte(SMB0_CONTROL, 0x54); // execute block write, no IRQ while (__inbyte(SMB0_STATUS) == 0x01) ; // busy, no errors return __inbyte(SMB0_STATUS) ^ 0x02; // 0x02 = completed, no errors } static void init(struct device *dev) { volatile u8 *spi_base; // base addr of Hudson's SPI host controller int i; 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# = input (int. PU) 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( 96) = 1; // "Gpio96": GEVENT0# signal on X2 connector (int. PU) FCH_IOMUX( 52) = 1; // GPIO52,61,62,187-192 free to use on X2 connector FCH_IOMUX( 61) = 2; // default to inputs with int. PU FCH_IOMUX( 62) = 2; FCH_IOMUX(187) = 2; FCH_IOMUX(188) = 2; FCH_IOMUX(189) = 1; FCH_IOMUX(190) = 1; 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)); /* Init SIO GPIOs. */ printk(BIOS_DEBUG, "Init SIO GPIOs @ 0x%04x\n", SIO_RUNTIME_BASE); for (i = 0; i < ARRAY_SIZE(sio_init_table); i++) { u16 val = sio_init_table[i]; outb((u8)val, SIO_RUNTIME_BASE + (val >> 8)); } /* 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. */ printk(BIOS_INFO, "Sending BIOS alive message\n"); const u8 i_am_alive[] = { 0x03 }; if ((i = smb_write_blk(0x50, 0x25, sizeof(i_am_alive), i_am_alive))) printk(BIOS_ERR, "smb_write_blk failed: %d\n", i); printk(BIOS_DEBUG, CONFIG_MAINBOARD_PART_NUMBER " EXIT %s\n", __func__); } void set_pcie_reset(void); void set_pcie_dereset(void); /** * TODO * SB CIMx callback */ void set_pcie_reset(void) { } /** * TODO * mainboard specific SB CIMx callback */ void set_pcie_dereset(void) { } /********************************************** * Enable the dedicated functions of the board. **********************************************/ static void mainboard_enable(device_t dev) { printk(BIOS_INFO, "Mainboard " CONFIG_MAINBOARD_PART_NUMBER " Enable.\n"); dev->ops->init = init; /* enable GPP CLK0 */ /* disable GPP CLK1 thru SLT_GFX_CLK */ u8 *misc_mem_clk_cntrl = (u8 *)(ACPI_MMIO_BASE + MISC_BASE); write8(misc_mem_clk_cntrl + 0, 0x0F); 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, };