From 2d79f16dc81037620ead4e3b49eb470726aec3f2 Mon Sep 17 00:00:00 2001 From: Marc Jones Date: Mon, 22 May 2017 21:35:16 -0600 Subject: google/kahlee: Start Kahlee mainboard Copied from amd/gardenia. Update the appropriate board name strings. Uses the soc/ structure. Change-Id: Ia68b16969518f4d63d5d2dea7658a472b2daca05 Signed-off-by: Marc Jones Reviewed-on: https://review.coreboot.org/19830 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin --- src/mainboard/google/kahlee/irq_tables.c | 101 +++++++++++++++++++++++++++++++ 1 file changed, 101 insertions(+) create mode 100644 src/mainboard/google/kahlee/irq_tables.c (limited to 'src/mainboard/google/kahlee/irq_tables.c') diff --git a/src/mainboard/google/kahlee/irq_tables.c b/src/mainboard/google/kahlee/irq_tables.c new file mode 100644 index 0000000000..e8b906eb0a --- /dev/null +++ b/src/mainboard/google/kahlee/irq_tables.c @@ -0,0 +1,101 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2015 Advanced Micro Devices, 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. + */ + +#include +#include +#include +#include +#include +#include + +static void write_pirq_info(struct irq_info *pirq_info, u8 bus, u8 devfn, + u8 link0, u16 bitmap0, u8 link1, u16 bitmap1, + u8 link2, u16 bitmap2, u8 link3, u16 bitmap3, + u8 slot, u8 rfu) +{ + pirq_info->bus = bus; + pirq_info->devfn = devfn; + pirq_info->irq[0].link = link0; + pirq_info->irq[0].bitmap = bitmap0; + pirq_info->irq[1].link = link1; + pirq_info->irq[1].bitmap = bitmap1; + pirq_info->irq[2].link = link2; + pirq_info->irq[2].bitmap = bitmap2; + pirq_info->irq[3].link = link3; + pirq_info->irq[3].bitmap = bitmap3; + pirq_info->slot = slot; + pirq_info->rfu = rfu; +} + +unsigned long write_pirq_routing_table(unsigned long addr) +{ + struct irq_routing_table *pirq; + struct irq_info *pirq_info; + u32 slot_num; + u8 *v; + + u8 sum = 0; + int i; + + /* Align the table to be 16 byte aligned. */ + addr += 15; + addr &= ~15; + + /* This table must be between 0xf0000 & 0x100000 */ + printk(BIOS_INFO, "Writing IRQ routing tables to 0x%lx...", addr); + + pirq = (void *)(addr); + v = (u8 *) (addr); + + pirq->signature = PIRQ_SIGNATURE; + pirq->version = PIRQ_VERSION; + + pirq->rtr_bus = 0; + pirq->rtr_devfn = PCI_DEVFN(0x14, 4); + + pirq->exclusive_irqs = 0; + + pirq->rtr_vendor = 0x1002; + pirq->rtr_device = 0x4384; + + pirq->miniport_data = 0; + + memset(pirq->rfu, 0, sizeof(pirq->rfu)); + + pirq_info = (void *)(&pirq->checksum + 1); + slot_num = 0; + + /* pci bridge */ + write_pirq_info(pirq_info, 0, PCI_DEVFN(0x14, 4), + 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, + 0); + pirq_info++; + + slot_num++; + + pirq->size = 32 + 16 * slot_num; + + for (i = 0; i < pirq->size; i++) + sum += v[i]; + + sum = pirq->checksum - sum; + + if (sum != pirq->checksum) + pirq->checksum = sum; + + printk(BIOS_INFO, "write_pirq_routing_table done.\n"); + + return (unsigned long)pirq_info; +} -- cgit v1.2.3