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author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2016-05-26 08:56:10 +0300 |
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committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2016-07-20 06:35:07 +0200 |
commit | 546eb451e31f6513ed7a2039fe5848ba04954870 (patch) | |
tree | f2f10a2d65d4fbfc63c21bd92920a8fda7ead55d /src/mainboard/amd/db-ft3b-lc/irq_tables.c | |
parent | e28ac06868225cc60d85246d0d10f4c0e85f25bb (diff) | |
download | coreboot-546eb451e31f6513ed7a2039fe5848ba04954870.tar.xz |
amd/db-ft3b-lc: Copy of amd/olivehillplus
Change-Id: I70330278bae54392e236d762716ba7c4d39a05a6
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/14969
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'src/mainboard/amd/db-ft3b-lc/irq_tables.c')
-rw-r--r-- | src/mainboard/amd/db-ft3b-lc/irq_tables.c | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/src/mainboard/amd/db-ft3b-lc/irq_tables.c b/src/mainboard/amd/db-ft3b-lc/irq_tables.c new file mode 100644 index 0000000000..c48a4452dc --- /dev/null +++ b/src/mainboard/amd/db-ft3b-lc/irq_tables.c @@ -0,0 +1,103 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 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 <console/console.h> +#include <device/pci.h> +#include <string.h> +#include <stdint.h> +#include <arch/pirq_routing.h> +#include <cpu/amd/amdfam16.h> + +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; +} |