Linux-2.6.12-rc2v2.6.12-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!

1 files changed, 204 insertions, 0 deletions

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);
+
+