From 27ce094ddfb9bb68741e2d00191a1d825c552f7d Mon Sep 17 00:00:00 2001 From: Aaron Durbin Date: Thu, 11 Sep 2014 16:07:02 -0500 Subject: drivers: add GIC support The GIC is ARM's "Generic Interrupt Controller". This change essentially implements the rudimentary support for a GICv2 implementation that routes all interrupts to Group1. This should also work for GICv1 with security extensions. BUG=chrome-os-partner:31945 BRANCH=None TEST=Built and booted kernel using the code. Change-Id: I9c9202c1309ca9e711e00d742085a6728552c54b Signed-off-by: Patrick Georgi Original-Commit-Id: d1cd9b6b76035af107b7dc876f90777698162d34 Original-Change-Id: I4c5b84bfe888ac33fa01c8d64a3dffe1b5ddc823 Original-Signed-off-by: Aaron Durbin Original-Reviewed-on: https://chromium-review.googlesource.com/217512 Original-Reviewed-by: Furquan Shaikh Reviewed-on: http://review.coreboot.org/9075 Tested-by: build bot (Jenkins) Reviewed-by: Edward O'Callaghan --- src/drivers/gic/gic.h | 78 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100644 src/drivers/gic/gic.h (limited to 'src/drivers/gic/gic.h') diff --git a/src/drivers/gic/gic.h b/src/drivers/gic/gic.h new file mode 100644 index 0000000000..d6f8d097cb --- /dev/null +++ b/src/drivers/gic/gic.h @@ -0,0 +1,78 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2014 Google 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef DRIVERS_GIC_H +#define DRIVERS_GIC_H + +#include + +#define NR(start, end) (((end) - (start)) / sizeof(uint32_t)) + +struct gicd_mmio { + uint32_t ctlr; /* 0x000 - 0x003 */ + uint32_t typer; /* 0x004 - 0x007 */ + uint32_t iidr; /* 0x008 - 0x00b */ + uint32_t reserved_1[NR(0xc, 0x80)]; /* 0x00c - 0x07f */ + uint32_t igroupr[NR(0x80, 0x100)]; /* 0x080 - 0x0ff */ + uint32_t isenabler[NR(0x100, 0x180)]; /* 0x100 - 0x17f */ + uint32_t icenabler[NR(0x180, 0x200)]; /* 0x180 - 0x1ff */ + uint32_t ispendr[NR(0x200, 0x280)]; /* 0x200 - 0x27f */ + uint32_t icpendr[NR(0x280, 0x300)]; /* 0x280 - 0x2ff */ + uint32_t isactiver[NR(0x300, 0x380)]; /* 0x300 - 0x37f */ + uint32_t icactiver[NR(0x380, 0x400)]; /* 0x380 - 0x3ff */ + uint32_t ipriorityr[NR(0x400, 0x7fc)]; /* 0x400 - 0x7fb */ + uint32_t reserved_2[NR(0x7fc, 0x800)]; /* 0x7fc - 0x7ff */ + uint32_t itargetsr[NR(0x800, 0xbfc)]; /* 0x800 - 0xbfb */ + uint32_t reserved_3[NR(0xbfc, 0xc00)]; /* 0xbfc - 0x2ff */ + uint32_t icfgr[NR(0xc00, 0xd00)]; /* 0xc00 - 0xcff */ + uint32_t reserved_4[NR(0xd00, 0xe00)]; /* 0xd00 - 0xdff */ + uint32_t nsacr[NR(0xe00, 0xf00)]; /* 0xe00 - 0xeff */ + uint32_t sgir; /* 0xf00 - 0xf03 */ + uint32_t reserved_5[NR(0xf04, 0xf10)]; /* 0xf04 - 0xf0f */ + uint32_t cpendsgir[NR(0xf10, 0xf20)]; /* 0xf10 - 0xf1f */ + uint32_t spendsgir[NR(0xf20, 0xf30)]; /* 0xf20 - 0xf2f */ + uint32_t reserved_6[NR(0xf30, 0xfe8)]; /* 0xf30 - 0xfe7 */ + uint32_t icpidr2; /* 0xfe8 - 0xfeb */ + uint32_t reserved_7[NR(0xfec, 0x1000)]; /* 0xfec - 0xfff */ +}; + +struct gicc_mmio { + uint32_t ctlr; /* 0x000 - 0x003 */ + uint32_t pmr; /* 0x004 - 0x007 */ + uint32_t bpr; /* 0x008 - 0x00b */ + uint32_t iar; /* 0x00c - 0x00f */ + uint32_t eoir; /* 0x010 - 0x013 */ + uint32_t rpr; /* 0x014 - 0x017 */ + uint32_t hppir; /* 0x018 - 0x01b */ + uint32_t apbr; /* 0x01c - 0x01f */ + uint32_t aiar; /* 0x020 - 0x023 */ + uint32_t aeoir; /* 0x024 - 0x027 */ + uint32_t ahppir; /* 0x028 - 0x02b */ + uint32_t resered_1[NR(0x2c, 0xd0)]; /* 0x02c - 0x0cf */ + uint32_t apr[NR(0xd0, 0xe0)]; /* 0x0d0 - 0x0df */ + uint32_t nsapr[NR(0xe0, 0xf0)]; /* 0x0e0 - 0x0ef */ + uint32_t resered_2[NR(0xf0, 0xfc)]; /* 0x0f0 - 0x0fb */ + uint32_t iidr; /* 0x0fc - 0x0ff */ + uint32_t reserved_3[NR(0x100, 0x1000)]; /* 0x100 - 0xfff */ + uint32_t dir; /* 0x1000 - 0x1003 */ +}; + +#undef NR + +#endif /* DRIVERS_GIC_H */ -- cgit v1.2.3