Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/arch/mips/pci/fixup-vr4133.c b/arch/mips/pci/fixup-vr4133.c
new file mode 100644
index 0000000..03a0ff2
--- /dev/null
+++ b/arch/mips/pci/fixup-vr4133.c
@@ -0,0 +1,204 @@
+/*
+ * arch/mips/vr41xx/nec-cmbvr4133/pci_fixup.c
+ *
+ * The NEC CMB-VR4133 Board specific PCI fixups.
+ *
+ * Author: Yoichi Yuasa <yyuasa@mvista.com, or source@mvista.com> and
+ * Alex Sapkov <asapkov@ru.mvista.com>
+ *
+ * 2003-2004 (c) MontaVista, Software, Inc. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ *
+ * Modified for support in 2.6
+ * Author: Manish Lachwani (mlachwani@mvista.com)
+ *
+ */
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+
+#include <asm/io.h>
+#include <asm/vr41xx/cmbvr4133.h>
+
+extern int vr4133_rockhopper;
+extern void ali_m1535plus_init(struct pci_dev *dev);
+extern void ali_m5229_init(struct pci_dev *dev);
+
+/* Do platform specific device initialization at pci_enable_device() time */
+int pcibios_plat_dev_init(struct pci_dev *dev)
+{
+ /*
+ * We have to reset AMD PCnet adapter on Rockhopper since
+ * PMON leaves it enabled and generating interrupts. This leads
+ * to a lock if some PCI device driver later enables the IRQ line
+ * shared with PCnet and there is no AMD PCnet driver to catch its
+ * interrupts.
+ */
+#ifdef CONFIG_ROCKHOPPER
+ if (dev->vendor == PCI_VENDOR_ID_AMD &&
+ dev->device == PCI_DEVICE_ID_AMD_LANCE) {
+ inl(pci_resource_start(dev, 0) + 0x18);
+ }
+#endif
+
+ /*
+ * we have to open the bridges' windows down to 0 because otherwise
+ * we cannot access ISA south bridge I/O registers that get mapped from
+ * 0. for example, 8259 PIC would be unaccessible without that
+ */
+ if(dev->vendor == PCI_VENDOR_ID_INTEL && dev->device == PCI_DEVICE_ID_INTEL_S21152BB) {
+ pci_write_config_byte(dev, PCI_IO_BASE, 0);
+ if(dev->bus->number == 0) {
+ pci_write_config_word(dev, PCI_IO_BASE_UPPER16, 0);
+ } else {
+ pci_write_config_word(dev, PCI_IO_BASE_UPPER16, 1);
+ }
+ }
+
+ return 0;
+}
+
+/*
+ * M1535 IRQ mapping
+ * Feel free to change this, although it shouldn't be needed
+ */
+#define M1535_IRQ_INTA 7
+#define M1535_IRQ_INTB 9
+#define M1535_IRQ_INTC 10
+#define M1535_IRQ_INTD 11
+
+#define M1535_IRQ_USB 9
+#define M1535_IRQ_IDE 14
+#define M1535_IRQ_IDE2 15
+#define M1535_IRQ_PS2 12
+#define M1535_IRQ_RTC 8
+#define M1535_IRQ_FDC 6
+#define M1535_IRQ_AUDIO 5
+#define M1535_IRQ_COM1 4
+#define M1535_IRQ_COM2 4
+#define M1535_IRQ_IRDA 3
+#define M1535_IRQ_KBD 1
+#define M1535_IRQ_TMR 0
+
+/* Rockhopper "slots" assignment; this is hard-coded ... */
+#define ROCKHOPPER_M5451_SLOT 1
+#define ROCKHOPPER_M1535_SLOT 2
+#define ROCKHOPPER_M5229_SLOT 11
+#define ROCKHOPPER_M5237_SLOT 15
+#define ROCKHOPPER_PMU_SLOT 12
+/* ... and hard-wired. */
+#define ROCKHOPPER_PCI1_SLOT 3
+#define ROCKHOPPER_PCI2_SLOT 4
+#define ROCKHOPPER_PCI3_SLOT 5
+#define ROCKHOPPER_PCI4_SLOT 6
+#define ROCKHOPPER_PCNET_SLOT 1
+
+#define M1535_IRQ_MASK(n) (1 << (n))
+
+#define M1535_IRQ_EDGE (M1535_IRQ_MASK(M1535_IRQ_TMR) | \
+ M1535_IRQ_MASK(M1535_IRQ_KBD) | \
+ M1535_IRQ_MASK(M1535_IRQ_COM1) | \
+ M1535_IRQ_MASK(M1535_IRQ_COM2) | \
+ M1535_IRQ_MASK(M1535_IRQ_IRDA) | \
+ M1535_IRQ_MASK(M1535_IRQ_RTC) | \
+ M1535_IRQ_MASK(M1535_IRQ_FDC) | \
+ M1535_IRQ_MASK(M1535_IRQ_PS2))
+
+#define M1535_IRQ_LEVEL (M1535_IRQ_MASK(M1535_IRQ_IDE) | \
+ M1535_IRQ_MASK(M1535_IRQ_USB) | \
+ M1535_IRQ_MASK(M1535_IRQ_INTA) | \
+ M1535_IRQ_MASK(M1535_IRQ_INTB) | \
+ M1535_IRQ_MASK(M1535_IRQ_INTC) | \
+ M1535_IRQ_MASK(M1535_IRQ_INTD))
+
+struct irq_map_entry {
+ u16 bus;
+ u8 slot;
+ u8 irq;
+};
+static struct irq_map_entry int_map[] = {
+ {1, ROCKHOPPER_M5451_SLOT, M1535_IRQ_AUDIO}, /* Audio controller */
+ {1, ROCKHOPPER_PCI1_SLOT, M1535_IRQ_INTD}, /* PCI slot #1 */
+ {1, ROCKHOPPER_PCI2_SLOT, M1535_IRQ_INTC}, /* PCI slot #2 */
+ {1, ROCKHOPPER_M5237_SLOT, M1535_IRQ_USB}, /* USB host controller */
+ {1, ROCKHOPPER_M5229_SLOT, IDE_PRIMARY_IRQ}, /* IDE controller */
+ {2, ROCKHOPPER_PCNET_SLOT, M1535_IRQ_INTD}, /* AMD Am79c973 on-board
+ ethernet */
+ {2, ROCKHOPPER_PCI3_SLOT, M1535_IRQ_INTB}, /* PCI slot #3 */
+ {2, ROCKHOPPER_PCI4_SLOT, M1535_IRQ_INTC} /* PCI slot #4 */
+};
+
+static int pci_intlines[] =
+ { M1535_IRQ_INTA, M1535_IRQ_INTB, M1535_IRQ_INTC, M1535_IRQ_INTD };
+
+/* Determine the Rockhopper IRQ line number for the PCI device */
+int rockhopper_get_irq(struct pci_dev *dev, u8 pin, u8 slot)
+{
+ struct pci_bus *bus;
+ int i;
+
+ bus = dev->bus;
+ if (bus == NULL)
+ return -1;
+
+ for (i = 0; i < sizeof (int_map) / sizeof (int_map[0]); i++) {
+ if (int_map[i].bus == bus->number && int_map[i].slot == slot) {
+ int line;
+ for (line = 0; line < 4; line++)
+ if (pci_intlines[line] == int_map[i].irq)
+ break;
+ if (line < 4)
+ return pci_intlines[(line + (pin - 1)) % 4];
+ else
+ return int_map[i].irq;
+ }
+ }
+ return -1;
+}
+
+#ifdef CONFIG_ROCKHOPPER
+void i8259_init(void)
+{
+ outb(0x11, 0x20); /* Master ICW1 */
+ outb(I8259_IRQ_BASE, 0x21); /* Master ICW2 */
+ outb(0x04, 0x21); /* Master ICW3 */
+ outb(0x01, 0x21); /* Master ICW4 */
+ outb(0xff, 0x21); /* Master IMW */
+
+ outb(0x11, 0xa0); /* Slave ICW1 */
+ outb(I8259_IRQ_BASE + 8, 0xa1); /* Slave ICW2 */
+ outb(0x02, 0xa1); /* Slave ICW3 */
+ outb(0x01, 0xa1); /* Slave ICW4 */
+ outb(0xff, 0xa1); /* Slave IMW */
+
+ outb(0x00, 0x4d0);
+ outb(0x02, 0x4d1); /* USB IRQ9 is level */
+}
+#endif
+
+int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+ extern int pci_probe_only;
+ pci_probe_only = 1;
+
+#ifdef CONFIG_ROCKHOPPER
+ if( dev->bus->number == 1 && vr4133_rockhopper ) {
+ if(slot == ROCKHOPPER_PCI1_SLOT || slot == ROCKHOPPER_PCI2_SLOT)
+ dev->irq = CMBVR41XX_INTA_IRQ;
+ else
+ dev->irq = rockhopper_get_irq(dev, pin, slot);
+ } else
+ dev->irq = CMBVR41XX_INTA_IRQ;
+#else
+ dev->irq = CMBVR41XX_INTA_IRQ;
+#endif
+
+ return dev->irq;
+}
+
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, ali_m1535plus_init);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M5229, ali_m5229_init);
+
+