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/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */
#ifndef _SOC_CANNONLAKE_LPC_H_
#define _SOC_CANNONLAKE_LPC_H_
#include <stdint.h>
/* PCI Configuration Space (D31:F0): LPC */
#define SCI_IRQ_SEL (7 << 0)
#define SCIS_IRQ9 0
#define SCIS_IRQ10 1
#define SCIS_IRQ11 2
#define SCIS_IRQ20 4
#define SCIS_IRQ21 5
#define SCIS_IRQ22 6
#define SCIS_IRQ23 7
#define SERIRQ_CNTL 0x64
#define LPC_IO_DEC 0x80 /* IO Decode Ranges Register */
#define COMA_RANGE 0x0 /* 0x3F8 - 0x3FF COM1*/
#define COMB_RANGE 0x1 /* 0x2F8 - 0x2FF COM2*/
#define LPC_EN 0x82 /* LPC IF Enables Register */
#define LPC_GEN1_DEC 0x84 /* LPC IF Generic Decode Range 1 */
#define LPC_GEN2_DEC 0x88 /* LPC IF Generic Decode Range 2 */
#define LPC_GEN3_DEC 0x8c /* LPC IF Generic Decode Range 3 */
#define LPC_GEN4_DEC 0x90 /* LPC IF Generic Decode Range 4 */
#define LGMR 0x98 /* LPC Generic Memory Range */
#define BIOS_CNTL 0xdc
#define LPC_BC_BILD (1 << 7) /* BILD */
#define LPC_BC_LE (1 << 1) /* LE */
#define LPC_BC_EISS (1 << 5) /* EISS */
#define PCCTL 0xE0 /* PCI Clock Control */
#define CLKRUN_EN (1 << 0)
/*
* This function will help to differentiate between 2 PCH on single type of soc.
* Since same soc may have LP series pch or H series PCH, we need to
* differentiate by reading upper 8 bits of PCH device ids.
*
* Return:
* Return PCH_LP or PCH_H macro in case of respective device ID found.
* PCH_UNKNOWN_SERIES in case of invalid device ID.
*/
uint8_t get_pch_series(void);
#endif
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