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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2014 Vladimir Serbinenko <phcoder@gmail.com>
*
* 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 <device/mmio.h>
#include <device/pci_ops.h>
#include <arch/cbfs.h>
#include <ip_checksum.h>
#include <device/pci_def.h>
#include <southbridge/intel/common/gpio.h>
#include <southbridge/intel/common/pmbase.h>
#include <southbridge/intel/common/rcba.h>
#include <console/console.h>
/* For DMI bar. */
#include <northbridge/intel/sandybridge/sandybridge.h>
#include "pch.h"
#define SOUTHBRIDGE PCI_DEV(0, 0x1f, 0)
static void
wait_iobp(void)
{
while (RCBA8(IOBPS) & 1)
; // implement timeout?
}
static u32
read_iobp(u32 address)
{
volatile u32 tmp;
u32 ret;
RCBA32(IOBPIRI) = address;
RCBA16(IOBPS) = (RCBA16(IOBPS) & 0x1ff) | 0x600;
wait_iobp();
ret = RCBA32(IOBPD);
wait_iobp();
tmp = RCBA8(IOBPS); // call wait_iobp() instead here?
return ret;
}
static void
write_iobp(u32 address, u32 val)
{
volatile u32 tmp;
/* this function was probably pch_iobp_update with the andvalue
* being 0. So either the IOBP read can be removed or this function
* and the pch_iobp_update function in ramstage could be merged */
read_iobp(address);
RCBA16(IOBPS) = (RCBA16(IOBPS) & 0x1ff) | 0x600;
wait_iobp();
RCBA32(IOBPD) = val;
wait_iobp();
RCBA16(IOBPS) = (RCBA16(IOBPS) & 0x1ff) | 0x600;
tmp = RCBA8(IOBPS); // call wait_iobp() instead here?
}
void early_pch_init_native_dmi_pre(void)
{
/* Link Capabilities Register */
RCBA32(0x21a4) = (RCBA32(0x21a4) & ~0x3fc00) |
(3 << 10) | // L0s and L1 entry supported
(2 << 12) | // L0s 128 ns to less than 256 ns
(2 << 15); // L1 2 us to less than 4 us
RCBA32(0x2340) = (RCBA32(0x2340) & ~0xff0000) | (0x3a << 16);
RCBA8(0x21b0) = (RCBA8(0x21b0) & ~0xf) | 2;
}
void early_pch_init_native_dmi_post(void)
{
volatile u32 tmp;
tmp = RCBA32(0x0050); // !!! = 0x01200654
RCBA32(0x0050) = 0x01200654;
tmp = RCBA32(0x0050); // !!! = 0x01200654
RCBA32(0x0050) = 0x012a0654;
tmp = RCBA32(0x0050); // !!! = 0x012a0654
tmp = RCBA8(0x1114); // !!! = 0x00
RCBA8(0x1114) = 0x05;
/*
* Virtual Channel resources must match settings in DMIBAR!
*
* Some of the following settings are taken from
* "Intel Core i5-600, i3-500 Desktop Processor Series and Intel
* Pentium Desktop Processor 6000 Series Vol. 2" datasheet and
* serialice traces.
*/
/* Virtual Channel 0 Resource Control Register.
* Enable channel.
* Set Virtual Channel Identifier.
* Map TC0 and TC3 and TC4 to VC0.
*/
RCBA32(0x2014) = (1 << 31) | (0 << 24) | (0x0c << 1) | 1;
/* Virtual Channel 1 Resource Control Register.
* Enable channel.
* Set Virtual Channel Identifier.
* Map TC1 and TC5 to VC1.
*/
RCBA32(0x2020) = (1 << 31) | (1 << 24) | (0x11 << 1);
/* Read back register */
tmp = RCBA32(0x2020);
/* Virtual Channel private Resource Control Register.
* Enable channel.
* Set Virtual Channel Identifier.
* Map TC2 and TC6 to VCp.
*/
RCBA32(0x2030) = (1 << 31) | (2 << 24) | (0x22 << 1);
/* Read back register */
tmp = RCBA32(0x2030);
/* Virtual Channel ME Resource Control Register.
* Enable channel.
* Set Virtual Channel Identifier.
* Map TC7 to VCm.
*/
RCBA32(0x2040) = (1 << 31) | (7 << 24) | (0x40 << 1);
/* Lock Virtual Channel Resource control register. */
RCBA32(0x0050) |= 0x80000000;
/* Read back register */
tmp = RCBA32(0x0050);
/* Wait for virtual channels negotiation pending */
while (RCBA16(0x201a) & VCNEGPND)
;
while (RCBA16(0x2026) & VCNEGPND)
;
while (RCBA16(0x2036) & VCNEGPND)
;
while (RCBA16(0x2046) & VCNEGPND)
;
}
void
early_pch_init_native (void)
{
volatile u32 tmp;
pci_write_config8 (SOUTHBRIDGE, 0xa6,
pci_read_config8 (SOUTHBRIDGE, 0xa6) | 2);
RCBA32(0x2088) = 0x00109000;
tmp = RCBA32(0x20ac); // !!! = 0x00000000
RCBA32(0x20ac) = 0x40000000;
RCBA32(0x100c) = 0x01110000;
RCBA8(0x2340) = 0x1b;
tmp = RCBA32(0x2314); // !!! = 0x0a080000
RCBA32(0x2314) = 0x0a280000;
tmp = RCBA32(0x2310); // !!! = 0xc809605b
RCBA32(0x2310) = 0xa809605b;
RCBA32(0x2324) = 0x00854c74;
tmp = RCBA8(0x0400); // !!! = 0x00
tmp = RCBA32(0x2310); // !!! = 0xa809605b
RCBA32(0x2310) = 0xa809605b;
tmp = RCBA32(0x2310); // !!! = 0xa809605b
RCBA32(0x2310) = 0xa809605b;
write_iobp(0xea007f62, 0x00590133);
write_iobp(0xec007f62, 0x00590133);
write_iobp(0xec007f64, 0x59555588);
write_iobp(0xea0040b9, 0x0001051c);
write_iobp(0xeb0040a1, 0x800084ff);
write_iobp(0xec0040a1, 0x800084ff);
write_iobp(0xea004001, 0x00008400);
write_iobp(0xeb004002, 0x40201758);
write_iobp(0xec004002, 0x40201758);
write_iobp(0xea004002, 0x00601758);
write_iobp(0xea0040a1, 0x810084ff);
write_iobp(0xeb0040b1, 0x0001c598);
write_iobp(0xec0040b1, 0x0001c598);
write_iobp(0xeb0040b6, 0x0001c598);
write_iobp(0xea0000a9, 0x80ff969f);
write_iobp(0xea0001a9, 0x80ff969f);
write_iobp(0xeb0040b2, 0x0001c396);
write_iobp(0xeb0040b3, 0x0001c396);
write_iobp(0xec0040b2, 0x0001c396);
write_iobp(0xea0001a9, 0x80ff94ff);
write_iobp(SATA_IOBP_SP0G3IR, 0x0088037f);
write_iobp(0xea0000a9, 0x80ff94ff);
write_iobp(SATA_IOBP_SP1G3IR, 0x0088037f);
write_iobp(0xea007f05, 0x00010642);
write_iobp(0xea0040b7, 0x0001c91c);
write_iobp(0xea0040b8, 0x0001c91c);
write_iobp(0xeb0040a1, 0x820084ff);
write_iobp(0xec0040a1, 0x820084ff);
write_iobp(0xea007f0a, 0xc2480000);
write_iobp(0xec00404d, 0x1ff177f);
write_iobp(0xec000084, 0x5a600000);
write_iobp(0xec000184, 0x5a600000);
write_iobp(0xec000284, 0x5a600000);
write_iobp(0xec000384, 0x5a600000);
write_iobp(0xec000094, 0x000f0501);
write_iobp(0xec000194, 0x000f0501);
write_iobp(0xec000294, 0x000f0501);
write_iobp(0xec000394, 0x000f0501);
write_iobp(0xec000096, 0x00000001);
write_iobp(0xec000196, 0x00000001);
write_iobp(0xec000296, 0x00000001);
write_iobp(0xec000396, 0x00000001);
write_iobp(0xec000001, 0x00008c08);
write_iobp(0xec000101, 0x00008c08);
write_iobp(0xec000201, 0x00008c08);
write_iobp(0xec000301, 0x00008c08);
write_iobp(0xec0040b5, 0x0001c518);
write_iobp(0xec000087, 0x06077597);
write_iobp(0xec000187, 0x06077597);
write_iobp(0xec000287, 0x06077597);
write_iobp(0xec000387, 0x06077597);
write_iobp(0xea000050, 0x00bb0157);
write_iobp(0xea000150, 0x00bb0157);
write_iobp(0xec007f60, 0x77777d77);
write_iobp(0xea00008d, 0x01320000);
write_iobp(0xea00018d, 0x01320000);
write_iobp(0xec0007b2, 0x04514b5e);
write_iobp(0xec00078c, 0x40000200);
write_iobp(0xec000780, 0x02000020);
}
static void pch_enable_bars(void)
{
pci_write_config32(PCH_LPC_DEV, RCBA, (uintptr_t)DEFAULT_RCBA | 1);
pci_write_config32(PCH_LPC_DEV, PMBASE, DEFAULT_PMBASE | 1);
pci_write_config8(PCH_LPC_DEV, ACPI_CNTL, 0x80);
pci_write_config32(PCH_LPC_DEV, GPIO_BASE, DEFAULT_GPIOBASE | 1);
/* Enable GPIO functionality. */
pci_write_config8(PCH_LPC_DEV, GPIO_CNTL, 0x10);
}
static void pch_generic_setup(void)
{
RCBA32(GCS) = RCBA32(GCS) | (1 << 5); /* No reset */
write_pmbase16(TCO1_CNT, 1 << 11); /* halt timer */
}
void early_pch_init(void)
{
pch_enable_lpc();
pch_enable_bars();
pch_generic_setup();
setup_pch_gpios(&mainboard_gpio_map);
}
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