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/*
* 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 <console/console.h>
#include <device/device.h>
#include <southbridge/amd/sb800/sb800.h>
#include <southbridge/amd/cimx/sb800/SBPLATFORM.h> /* Platform Specific Definitions */
static void init_gpios(void)
{
/**
* GPIO32 Pcie Device DeAssert for APU
* GPIO25 Pcie LAN, APU GPP2
* GPIO02 MINIPCIE SLOT1, APU GPP3
* GPIO50 Pcie Device DeAssert for Hudson Southbridge
* GPIO05 Express Card, SB GPP0
* GPIO26 NEC USB3.0GPPUSB, SB GPP1
* GPIO00 MINIPCIE SLOT2, SB GPP2
* GPIO05 Pcie X1 Slot, SB GPP3
*/
/* Multi-function pins switch to GPIO0-35, these pins are shared with
* PCI pins, make sure Hudson PCI device is disabled.
*/
RWMEM(ACPI_MMIO_BASE + PMIO_BASE + SB_PMIOA_REGEA, AccWidthUint8, ~BIT0, 1);
/* select IOMux to function1/2, corresponds to GPIO */
RWMEM(ACPI_MMIO_BASE + IOMUX_BASE + SB_GPIO_REG32, AccWidthUint8, ~(BIT0 | BIT1), 1);
RWMEM(ACPI_MMIO_BASE + IOMUX_BASE + SB_GPIO_REG50, AccWidthUint8, ~(BIT0 | BIT1), 2);
/* output low */
RWMEM(ACPI_MMIO_BASE + GPIO_BASE + SB_GPIO_REG32, AccWidthUint8, ~(0xFF), 0x48);
RWMEM(ACPI_MMIO_BASE + GPIO_BASE + SB_GPIO_REG50, AccWidthUint8, ~(0xFF), 0x48);
}
/**********************************************
* Enable the dedicated functions of the board.
**********************************************/
static void mainboard_enable(struct device *dev)
{
printk(BIOS_INFO, "Mainboard " CONFIG_MAINBOARD_PART_NUMBER " Enable.\n");
/* Inagua mainboard specific setting */
init_gpios();
/*
* 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,
};
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