The only southbridge having a pirq_assign_irqs function (needed for

CONFIG_PIRQ_ROUTE) so far is the amd cs5530.
Add one for vt8237 too.
Setting up the pci routing is important in case you want to boot DOS,
OSes that don't support ACPI or MP tables and ROMs for add-in storage
controllers may depend on this too.
TODO: Fix the 4 routing links limitation in
      src/arch/i386/boot/pirq_routing.c

Signed-off-by: Tobias Diedrich <ranma+coreboot@tdiedrich.de>
Acked-by: Rudolf Marek <r.marek@assembler.cz>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6081 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

diff --git a/src/mainboard/asus/m2v/Kconfig b/src/mainboard/asus/m2v/Kconfig
index f842455192081096180d90dc770f53d3cfcd928d..aced403f2d50045cec59d2400a2d2294c26fae47 100644 (file)
--- a/src/mainboard/asus/m2v/Kconfig
+++ b/src/mainboard/asus/m2v/Kconfig
@@ -18,6 +18,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy
        select RAMINIT_SYSINFO
        select TINY_BOOTBLOCK
        select HAVE_PIRQ_TABLE
+       select PIRQ_ROUTE
        select HAVE_ACPI_TABLES
        select HAVE_MP_TABLE
        select SET_FIDVID

diff --git a/src/southbridge/via/vt8237r/Makefile.inc b/src/southbridge/via/vt8237r/Makefile.inc
index 8a1efa5951e13cf1b6d29cd697c6852a745b0a2c..04adb4b6d9e19e976e1a761090a9e23e5a80d987 100644 (file)
--- a/src/southbridge/via/vt8237r/Makefile.inc
+++ b/src/southbridge/via/vt8237r/Makefile.inc
@@ -23,5 +23,5 @@ driver-y += vt8237r_ide.c
 driver-y += vt8237r_lpc.c
 driver-y += vt8237r_sata.c
 driver-y += vt8237r_usb.c
-driver-y += vt8237r_nic.c
+driver-$(CONFIG_PIRQ_ROUTE) += vt8237r_pirq.c
 ramstage-$(CONFIG_GENERATE_ACPI_TABLES) += vt8237_fadt.c

diff --git a/src/southbridge/via/vt8237r/vt8237r_pirq.c b/src/southbridge/via/vt8237r/vt8237r_pirq.c
new file mode 100644 (file)
index 0000000..9915da4
--- /dev/null
+++ b/src/southbridge/via/vt8237r/vt8237r_pirq.c
@@ -0,0 +1,51 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007 Nikolay Petukhov <nikolay.petukhov@gmail.com>
+ * Copyright (C) 2010 Tobias Diedrich <ranma+coreboot@tdiedrich.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
+ */
+
+#include <arch/pirq_routing.h>
+#include <console/console.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <pc80/i8259.h>
+
+#if (CONFIG_PIRQ_ROUTE==1 && CONFIG_GENERATE_PIRQ_TABLE==1)
+void pirq_assign_irqs(const unsigned char route[4])
+{
+       device_t pdev;
+
+       pdev = dev_find_device(PCI_VENDOR_ID_VIA,
+                               PCI_DEVICE_ID_VIA_VT8237R_LPC, 0);
+       if (!pdev)
+               pdev = dev_find_device(PCI_VENDOR_ID_VIA,
+                               PCI_DEVICE_ID_VIA_VT8237S_LPC, 0);
+       if (!pdev)
+               pdev = dev_find_device(PCI_VENDOR_ID_VIA,
+                               PCI_DEVICE_ID_VIA_VT8237A_LPC, 0);
+       if (!pdev)
+               return;
+
+       pci_write_config8(pdev, 0x55,  route[0] << 4);
+       pci_write_config8(pdev, 0x56, (route[2] << 4) | route[1]);
+       pci_write_config8(pdev, 0x57,  route[3] << 4);
+
+       /* Enable INT[E-H] mapped to INT[A-D] for simplicity */
+       pci_write_config8(pdev, 0x46,  0x00);
+}
+#endif