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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2010 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.
*/
#ifndef _HUDSON_EARLY_SETUP_C_
#define _HUDSON_EARLY_SETUP_C_
#include <stdint.h>
#include <arch/io.h>
#include <arch/acpi.h>
#include <console/console.h>
#include <reset.h>
#include <arch/cpu.h>
#include <cbmem.h>
#include "hudson.h"
#include "pci_devs.h"
#include <Fch/Fch.h>
#if IS_ENABLED(CONFIG_HUDSON_UART)
#include <cpu/x86/msr.h>
#include <delay.h>
void configure_hudson_uart(void)
{
msr_t msr;
u8 byte;
msr = rdmsr(0x1B);
msr.lo |= 1 << 11;
wrmsr(0x1B, msr);
byte = read8((void *)ACPI_MMIO_BASE + AOAC_BASE + FCH_AOAC_REG56 + CONFIG_UART_FOR_CONSOLE * 2);
byte |= 1 << 3;
write8((void *)ACPI_MMIO_BASE + AOAC_BASE + FCH_AOAC_REG56 + CONFIG_UART_FOR_CONSOLE * 2, byte);
byte = read8((void *)ACPI_MMIO_BASE + AOAC_BASE + FCH_AOAC_REG62);
byte |= 1 << 3;
write8((void *)ACPI_MMIO_BASE + AOAC_BASE + FCH_AOAC_REG62, byte);
write8((void *)FCH_IOMUXx89_UART0_RTS_L_EGPIO137, 0);
write8((void *)FCH_IOMUXx8A_UART0_TXD_EGPIO138, 0);
write8((void *)FCH_IOMUXx8E_UART1_RTS_L_EGPIO142, 0);
write8((void *)FCH_IOMUXx8F_UART1_TXD_EGPIO143, 0);
udelay(2000);
write8((void *)0xFEDC6000 + 0x2000 * CONFIG_UART_FOR_CONSOLE + 0x88, 0x01); /* reset UART */
}
#endif
void hudson_pci_port80(void)
{
u8 byte;
pci_devfn_t dev;
/* P2P Bridge */
dev = PCI_DEV(0, 0x14, 4);
/* Chip Control: Enable subtractive decoding */
byte = pci_read_config8(dev, 0x40);
byte |= 1 << 5;
pci_write_config8(dev, 0x40, byte);
/* Misc Control: Enable subtractive decoding if 0x40 bit 5 is set */
byte = pci_read_config8(dev, 0x4B);
byte |= 1 << 7;
pci_write_config8(dev, 0x4B, byte);
/* The same IO Base and IO Limit here is meaningful because we set the
* bridge to be subtractive. During early setup stage, we have to make
* sure that data can go through port 0x80.
*/
/* IO Base: 0xf000 */
byte = pci_read_config8(dev, 0x1C);
byte |= 0xF << 4;
pci_write_config8(dev, 0x1C, byte);
/* IO Limit: 0xf000 */
byte = pci_read_config8(dev, 0x1D);
byte |= 0xF << 4;
pci_write_config8(dev, 0x1D, byte);
/* PCI Command: Enable IO response */
byte = pci_read_config8(dev, 0x04);
byte |= 1 << 0;
pci_write_config8(dev, 0x04, byte);
/* LPC controller */
dev = PCI_DEV(0, 0x14, 3);
byte = pci_read_config8(dev, 0x4A);
byte &= ~(1 << 5); /* disable lpc port 80 */
pci_write_config8(dev, 0x4A, byte);
}
void hudson_lpc_port80(void)
{
u8 byte;
pci_devfn_t dev;
/* Enable LPC controller */
outb(0xEC, 0xCD6);
byte = inb(0xCD7);
byte |= 1;
outb(0xEC, 0xCD6);
outb(byte, 0xCD7);
/* Enable port 80 LPC decode in pci function 3 configuration space. */
dev = PCI_DEV(0, 0x14, 3);
byte = pci_read_config8(dev, 0x4a);
byte |= 1 << 5; /* enable port 80 */
pci_write_config8(dev, 0x4a, byte);
}
void hudson_lpc_decode(void)
{
pci_devfn_t dev;
u32 tmp = 0;
/* Enable I/O decode to LPC bus */
dev = PCI_DEV(0, PCU_DEV, LPC_FUNC);
tmp = DECODE_ENABLE_PARALLEL_PORT0 | DECODE_ENABLE_PARALLEL_PORT2
| DECODE_ENABLE_PARALLEL_PORT4 | DECODE_ENABLE_SERIAL_PORT0
| DECODE_ENABLE_SERIAL_PORT1 | DECODE_ENABLE_SERIAL_PORT2
| DECODE_ENABLE_SERIAL_PORT3 | DECODE_ENABLE_SERIAL_PORT4
| DECODE_ENABLE_SERIAL_PORT5 | DECODE_ENABLE_SERIAL_PORT6
| DECODE_ENABLE_SERIAL_PORT7 | DECODE_ENABLE_AUDIO_PORT0
| DECODE_ENABLE_AUDIO_PORT1 | DECODE_ENABLE_AUDIO_PORT2
| DECODE_ENABLE_AUDIO_PORT3 | DECODE_ENABLE_MSS_PORT2
| DECODE_ENABLE_MSS_PORT3 | DECODE_ENABLE_FDC_PORT0
| DECODE_ENABLE_FDC_PORT1 | DECODE_ENABLE_GAME_PORT
| DECODE_ENABLE_KBC_PORT | DECODE_ENABLE_ACPIUC_PORT
| DECODE_ENABLE_ADLIB_PORT;
pci_write_config32(dev, LPC_IO_PORT_DECODE_ENABLE, tmp);
}
int s3_save_nvram_early(u32 dword, int size, int nvram_pos)
{
int i;
printk(BIOS_DEBUG, "Writing %x of size %d to nvram pos: %d\n", dword, size, nvram_pos);
for (i = 0; i < size; i++) {
outb(nvram_pos, BIOSRAM_INDEX);
outb((dword >>(8 * i)) & 0xff , BIOSRAM_DATA);
nvram_pos++;
}
return nvram_pos;
}
int s3_load_nvram_early(int size, u32 *old_dword, int nvram_pos)
{
u32 data = *old_dword;
int i;
for (i = 0; i < size; i++) {
outb(nvram_pos, BIOSRAM_INDEX);
data &= ~(0xff << (i * 8));
data |= inb(BIOSRAM_DATA) << (i *8);
nvram_pos++;
}
*old_dword = data;
printk(BIOS_DEBUG, "Loading %x of size %d to nvram pos:%d\n", *old_dword, size,
nvram_pos-size);
return nvram_pos;
}
void hudson_clk_output_48Mhz(void)
{
u32 data, *memptr;
/*
* Enable the X14M_25M_48M_OSC pin and leaving it at it's default so
* 48Mhz will be on ball AP13 (FT3b package)
*/
memptr = (u32 *)(ACPI_MMIO_BASE + MISC_BASE + FCH_MISC_REG40 );
data = *memptr;
/* clear the OSCOUT1_ClkOutputEnb to enable the 48 Mhz clock */
data &= (u32)~(1<<2);
*memptr = data;
}
#endif
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