u-boot-brain/arch/x86/include/asm/arch-apollolake/itss.h
Simon Glass 3a02f699fa x86: apl: Add ITSS driver
This driver models some sort of interrupt thingy but there are so many
abreviations that I cannot find out what it stands for. Possibly something
to do with interrupts.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-12-15 11:44:27 +08:00

44 lines
1.2 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2017 Intel Corporation.
* Copyright 2019 Google LLC
*
* Modified from coreboot itss.h
*/
#ifndef _ASM_ARCH_ITSS_H
#define _ASM_ARCH_ITSS_H
#define GPIO_IRQ_START 50
#define GPIO_IRQ_END ITSS_MAX_IRQ
#define ITSS_MAX_IRQ 119
#define IRQS_PER_IPC 32
#define NUM_IPC_REGS ((ITSS_MAX_IRQ + IRQS_PER_IPC - 1) / IRQS_PER_IPC)
/* Max PXRC registers in ITSS */
#define MAX_PXRC_CONFIG (PCR_ITSS_PIRQH_ROUT - PCR_ITSS_PIRQA_ROUT + 1)
/* PIRQA Routing Control Register */
#define PCR_ITSS_PIRQA_ROUT 0x3100
/* PIRQB Routing Control Register */
#define PCR_ITSS_PIRQB_ROUT 0x3101
/* PIRQC Routing Control Register */
#define PCR_ITSS_PIRQC_ROUT 0x3102
/* PIRQD Routing Control Register */
#define PCR_ITSS_PIRQD_ROUT 0x3103
/* PIRQE Routing Control Register */
#define PCR_ITSS_PIRQE_ROUT 0x3104
/* PIRQF Routing Control Register */
#define PCR_ITSS_PIRQF_ROUT 0x3105
/* PIRQG Routing Control Register */
#define PCR_ITSS_PIRQG_ROUT 0x3106
/* PIRQH Routing Control Register */
#define PCR_ITSS_PIRQH_ROUT 0x3107
/* ITSS Interrupt polarity control */
#define PCR_ITSS_IPC0_CONF 0x3200
/* ITSS Power reduction control */
#define PCR_ITSS_ITSSPRC 0x3300
#endif /* _ASM_ARCH_ITSS_H */