diff options
Diffstat (limited to 'src/mainboard/bcom/winnet100/irq_tables.c')
| -rw-r--r-- | src/mainboard/bcom/winnet100/irq_tables.c | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/src/mainboard/bcom/winnet100/irq_tables.c b/src/mainboard/bcom/winnet100/irq_tables.c new file mode 100644 index 0000000000..20fd2d847b --- /dev/null +++ b/src/mainboard/bcom/winnet100/irq_tables.c @@ -0,0 +1,138 @@ +/* + * This file is part of the LinuxBIOS project. + * + * Copyright (C) 2007 Juergen Beisert <juergen@kreuzholzen.de> + * + * 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; either version 2 of the License, or + * (at your option) any later version. + * + * 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 + */ + +/** + * @file + * Interrupt routing description for BCOM's Winnet100 board. + * It was not possible to read back the pirq-Table. In the 0xF segment was + * no string like $PIRQ... + * But the already running 2.4.21 kernel provides eth0 IRQ15 and USB IRQ 11. + * The Realtek was device 0.f.0, the USB 0.13.0. + * + * This is the physical routing on this board: + * + * 5530 USB Network + * northbridge device device + * 00.13.0 00.0f.00 + * ------------------------------------ + * INTA# INTA# n.c. + * INTB# n.c. n.c. + * INTC# n.c. INTA# + * INTD# n.c. n.c. + */ + +#include <arch/pirq_routing.h> + +/* + * The USB controller should be connected to IRQ11, + * the network controller should be connected to IRQ15. + */ +#define IRQ_BITMAP_LINK0 0x0800 +#define IRQ_BITMAP_LINK1 0x0400 +#define IRQ_BITMAP_LINK2 0x8000 +#define IRQ_BITMAP_LINK3 0x0200 + +/** Reserved interrupt channels for PCI. */ +#define IRQ_DEVOTED_TO_PCI (IRQ_BITMAP_LINK0 | IRQ_BITMAP_LINK2) + +/** + * Routing description. + * Documentation at: http://www.microsoft.com/whdc/archive/pciirq.mspx + */ +const struct irq_routing_table intel_irq_routing_table = { + .signature = PIRQ_SIGNATURE, /* u32 signature */ + .version = PIRQ_VERSION, /* u16 version */ + .size = 32+16*IRQ_SLOT_COUNT, /* There can be total IRQ_SLOT_COUNT devices on the bus */ + .rtr_bus = 0x00, /* Where the interrupt router lies (bus) */ + .rtr_devfn = (0x12<<3)|0x0, /* Where the interrupt router lies (dev) */ + .exclusive_irqs = IRQ_DEVOTED_TO_PCI, /* IRQs devoted exclusively to PCI usage */ + .rtr_vendor = 0x1078, /* Vendor */ + .rtr_device = 0x0100, /* Device */ + .miniport_data = 0, /* Crap (miniport) */ + .checksum = 0xBF+16, + .slots = { + /* + * Definition for "slot#1". There is no real slot, + * the USB device is embedded... + */ + [0] = { + .bus = 0x00, + .devfn = (0x13 << 3) | 0x0, + .irq = { + [0] = { + .link = 0x01, /* INT A */ + .bitmap = IRQ_BITMAP_LINK0, + }, + [1] = { + .link = 0x02, /* INT B */ + .bitmap = IRQ_BITMAP_LINK1, + }, + [2] = { + .link = 0x03, /* INT C */ + .bitmap = IRQ_BITMAP_LINK2, + }, + [3] = { + .link = 0x04, /* INT D */ + .bitmap = IRQ_BITMAP_LINK3, + } + }, + .slot = 0x0, + }, + + /* + * Definition for "slot#3". There is no real slot, + * the network device is soldered... + */ + [1] = { + .bus = 0x00, + .devfn = (0x0f << 3) | 0x0, + .irq = { + [0] = { + .link = 0x03, + .bitmap = IRQ_BITMAP_LINK2, + }, + [1] = { + .link = 0x04, + .bitmap = IRQ_BITMAP_LINK3, + }, + [2] = { + .link = 0x01, + .bitmap = IRQ_BITMAP_LINK0, + }, + [3] = { + .link = 0x02, + .bitmap = IRQ_BITMAP_LINK1, + } + }, + .slot = 0x0, + } + } +}; + +/** + * Copy the IRQ routing table to memory. + * + * @param[in] addr Destination address (between 0xF0000...0x100000). + * @return TODO. + */ +unsigned long write_pirq_routing_table(unsigned long addr) +{ + return copy_pirq_routing_table(addr); +} |