coreboot-kgpe-d16/src/southbridge/intel/lynxpoint/chip.h

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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2008-2009 coresystems GmbH
*
* 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 SOUTHBRIDGE_INTEL_LYNXPOINT_CHIP_H
#define SOUTHBRIDGE_INTEL_LYNXPOINT_CHIP_H
#include <stdint.h>
struct southbridge_intel_lynxpoint_config {
/**
* Interrupt Routing configuration
* If bit7 is 1, the interrupt is disabled.
*/
uint8_t pirqa_routing;
uint8_t pirqb_routing;
uint8_t pirqc_routing;
uint8_t pirqd_routing;
uint8_t pirqe_routing;
uint8_t pirqf_routing;
uint8_t pirqg_routing;
uint8_t pirqh_routing;
/**
* GPI Routing configuration for LynxPoint-H
*
* Only the lower two bits have a meaning:
* 00: No effect
* 01: SMI# (if corresponding ALT_GPI_SMI_EN bit is also set)
* 10: SCI (if corresponding GPIO_EN bit is also set)
* 11: reserved
*/
uint8_t gpi0_routing;
uint8_t gpi1_routing;
uint8_t gpi2_routing;
uint8_t gpi3_routing;
uint8_t gpi4_routing;
uint8_t gpi5_routing;
uint8_t gpi6_routing;
uint8_t gpi7_routing;
uint8_t gpi8_routing;
uint8_t gpi9_routing;
uint8_t gpi10_routing;
uint8_t gpi11_routing;
uint8_t gpi12_routing;
uint8_t gpi13_routing;
uint8_t gpi14_routing;
uint8_t gpi15_routing;
uint32_t gpe0_en_1;
uint32_t gpe0_en_2;
uint32_t gpe0_en_3;
uint32_t gpe0_en_4;
uint32_t alt_gp_smi_en;
/* IDE configuration */
uint32_t ide_legacy_combined;
uint32_t sata_ahci;
uint8_t sata_port_map;
uint32_t sata_port0_gen3_tx;
uint32_t sata_port1_gen3_tx;
uint32_t sata_port0_gen3_dtle;
uint32_t sata_port1_gen3_dtle;
/* SATA DEVSLP Mux
* 0 = port 0 DEVSLP on DEVSLP0/GPIO33
* 1 = port 3 DEVSLP on DEVSLP0/GPIO33
*/
uint8_t sata_devslp_mux;
/*
* DEVSLP Disable
* 0: DEVSLP is enabled
* 1: DEVSLP is disabled
*/
uint8_t sata_devslp_disable;
uint32_t gen1_dec;
uint32_t gen2_dec;
uint32_t gen3_dec;
uint32_t gen4_dec;
/* Enable linear PCIe Root Port function numbers starting at zero */
uint8_t pcie_port_coalesce;
/* Force root port ASPM configuration with port bitmap */
uint8_t pcie_port_force_aspm;
lynxpoint: Basic configuration of SerialIO devices This adds configuration of SerialIO devices in the Lynxpoint-LP chipset. This includes DMA, I2C, SPI, UART, and SDIO controllers. There is assorted magic setup necessary for the devices and while it is similar for each device there are subtle differences in some register settings. These devices must be put into "ACPI Mode" in order to take advantage of S0ix. When in ACPI mode the allocated PCI BARs must be passed to ACPI so it can be relayed to the OS. When the devices are in ACPI mode BAR0+BAR1 is saved into ACPI NVS and then updated and returned when the OS calls _CRS. Note that is is not entirely complete yet. We need to update the IASL compiler in our build environment to support ACPI 5.0 in order to be able to pass the FixedDMA entries to the kernel. There are also no ACPI methods defined yet to do D0->D3->D0 transitions for actually entering/exiting S0ix states. This is hard to test right now because our kernel does not support any of these devices in ACPI mode. I was able to build and test the upstream bleeding-edge branch of the linux-pm git tree. With that tree I was able to enumerate and load the driver for the DesignWare I2C driver and attempt to probe the I2C bus -- although there are no devices attatched. I am also able to see the resources from ACPI in /proc/iomem get reserved properly in the kernel. Change-Id: Ie311addd6a25f3b7edf3388fe68c1cd691a0a500 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: http://review.coreboot.org/2971 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-03-22 19:21:14 +01:00
/* Serial IO configuration */
/* Put devices into ACPI mode instead of a PCI device */
uint8_t sio_acpi_mode;
/* I2C voltage select: 0=3.3V 1=1.8V */
uint8_t sio_i2c0_voltage;
uint8_t sio_i2c1_voltage;
/*
* Clock Disable Map:
* [21:16] = CLKOUT_PCIE# 5-0
* [24] = CLKOUT_ITPXDP
*/
uint32_t icc_clock_disable;
/* Route USB ports to XHCI per default */
uint8_t xhci_default;
};
extern struct chip_operations southbridge_intel_lynxpoint_ops;
#endif /* SOUTHBRIDGE_INTEL_LYNXPOINT_CHIP_H */