[MIPS] Routerboard 532: Support for base system
Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Florian Fainelli <florian.fainelli@telecomint.eu>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/pci/fixup-rc32434.c b/arch/mips/pci/fixup-rc32434.c
new file mode 100644
index 0000000..75b90dc
--- /dev/null
+++ b/arch/mips/pci/fixup-rc32434.c
@@ -0,0 +1,69 @@
+/*
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ * stevel@mvista.com or source@mvista.com
+ *
+ * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * 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.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+#include <asm/mach-rc32434/rc32434.h>
+
+static int __devinitdata irq_map[2][12] = {
+ {0, 0, 2, 3, 2, 3, 0, 0, 0, 0, 0, 1},
+ {0, 0, 1, 3, 0, 2, 1, 3, 0, 2, 1, 3}
+};
+
+int __devinit pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+ int irq = 0;
+
+ if (dev->bus->number < 2 && PCI_SLOT(dev->devfn) < 12)
+ irq = irq_map[dev->bus->number][PCI_SLOT(dev->devfn)];
+
+ return irq + GROUP4_IRQ_BASE + 4;
+}
+
+static void rc32434_pci_early_fixup(struct pci_dev *dev)
+{
+ if (PCI_SLOT(dev->devfn) == 6 && dev->bus->number == 0) {
+ /* disable prefetched memory range */
+ pci_write_config_word(dev, PCI_PREF_MEMORY_LIMIT, 0);
+ pci_write_config_word(dev, PCI_PREF_MEMORY_BASE, 0x10);
+
+ pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, 4);
+ }
+}
+
+/*
+ * The fixup applies to both the IDT and VIA devices present on the board
+ */
+DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, rc32434_pci_early_fixup);
+
+/* Do platform specific device initialization at pci_enable_device() time */
+int pcibios_plat_dev_init(struct pci_dev *dev)
+{
+ return 0;
+}