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, 391 insertions, 0 deletions

diff --git a/arch/mips/pci/ops-tx3927.c b/arch/mips/pci/ops-tx3927.c
new file mode 100644
index 0000000..0e0daad
--- /dev/null
+++ b/arch/mips/pci/ops-tx3927.c
@@ -0,0 +1,391 @@
+/*
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ *              ahennessy@mvista.com
+ *
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ * Copyright (C) 2004 by Ralf Baechle (ralf@linux-mips.org)
+ *
+ * Based on arch/mips/ddb5xxx/ddb5477/pci_ops.c
+ *
+ *     Define the pci_ops for JMR3927.
+ *
+ * Much of the code is derived from the original DDB5074 port by
+ * Geert Uytterhoeven <geert@sonycom.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/addrspace.h>
+#include <asm/jmr3927/jmr3927.h>
+#include <asm/debug.h>
+
+static inline int mkaddr(unsigned char bus, unsigned char dev_fn,
+	unsigned char where)
+{
+	if (bus == 0 && dev_fn >= PCI_DEVFN(TX3927_PCIC_MAX_DEVNU, 0))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	tx3927_pcicptr->ica = ((bus & 0xff) << 0x10) |
+	                      ((dev_fn & 0xff) << 0x08) |
+	                      (where & 0xfc);
+
+	/* clear M_ABORT and Disable M_ABORT Int. */
+	tx3927_pcicptr->pcistat |= PCI_STATUS_REC_MASTER_ABORT;
+	tx3927_pcicptr->pcistatim &= ~PCI_STATUS_REC_MASTER_ABORT;
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static inline int check_abort(void)
+{
+	if (tx3927_pcicptr->pcistat & PCI_STATUS_REC_MASTER_ABORT)
+		tx3927_pcicptr->pcistat |= PCI_STATUS_REC_MASTER_ABORT;
+		tx3927_pcicptr->pcistatim |= PCI_STATUS_REC_MASTER_ABORT;
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static int jmr3927_pci_read_config(struct pci_bus *bus, unsigned int devfn,
+	int where, int size, u32 * val)
+{
+	int ret, busno;
+
+	/* check if the bus is top-level */
+	if (bus->parent != NULL)
+		busno = bus->number;
+
+	ret = mkaddr(busno, devfn, where);
+	if (ret)
+		return ret;
+
+	switch (size) {
+	case 1:
+		*val = *(volatile u8 *) ((unsigned long) & tx3927_pcicptr->icd | (where & 3));
+		break;
+
+	case 2:
+		*val = le16_to_cpu(*(volatile u16 *) ((unsigned long) & tx3927_pcicptr->icd | (where & 3)));
+		break;
+
+	case 4:
+		*val = le32_to_cpu(tx3927_pcicptr->icd);
+		break;
+	}
+
+	return check_abort();
+}
+
+static int jmr3927_pci_write_config(struct pci_bus *bus, unsigned int devfn,
+	int where, int size, u32 val)
+{
+	int ret, busno;
+
+	/* check if the bus is top-level */
+	if (bus->parent != NULL)
+		bus = bus->number;
+	else
+		bus = 0;
+
+	ret = mkaddr(busno, devfn, where);
+	if (ret)
+		return ret;
+
+	switch (size) {
+	case 1:
+		*(volatile u8 *) ((unsigned long) & tx3927_pcicptr->icd | (where & 3)) = val;
+		break;
+
+	case 2:
+		*(volatile u16 *) (unsigned longulong) & tx3927_pcicptr->icd | (where & 2)) =
+	    cpu_to_le16(val);
+		break;
+
+	case 4:
+		tx3927_pcicptr->icd = cpu_to_le32(val);
+	}
+
+	if (tx3927_pcicptr->pcistat & PCI_STATUS_REC_MASTER_ABORT)
+		tx3927_pcicptr->pcistat |= PCI_STATUS_REC_MASTER_ABORT;
+		tx3927_pcicptr->pcistatim |= PCI_STATUS_REC_MASTER_ABORT;
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	return check_abort();
+}
+
+struct pci_ops jmr3927_pci_ops = {
+	jmr3927_pcibios_read_config,
+	jmr3927_pcibios_write_config,
+};
+
+
+#ifndef JMR3927_INIT_INDIRECT_PCI
+
+inline unsigned long tc_readl(volatile __u32 * addr)
+{
+	return readl(addr);
+}
+
+inline void tc_writel(unsigned long data, volatile __u32 * addr)
+{
+	writel(data, addr);
+}
+#else
+
+unsigned long tc_readl(volatile __u32 * addr)
+{
+	unsigned long val;
+
+	addr = PHYSADDR(addr);
+	*(volatile u32 *) (ulong) & tx3927_pcicptr->ipciaddr =
+	    (unsigned long) addr;
+	*(volatile u32 *) (ulong) & tx3927_pcicptr->ipcibe =
+	    (PCI_IPCIBE_ICMD_MEMREAD << PCI_IPCIBE_ICMD_SHIFT) |
+	    PCI_IPCIBE_IBE_LONG;
+	while (!(tx3927_pcicptr->istat & PCI_ISTAT_IDICC));
+	val =
+	    le32_to_cpu(*(volatile u32 *) (ulong) & tx3927_pcicptr->
+			ipcidata);
+	/* clear by setting */
+	tx3927_pcicptr->istat |= PCI_ISTAT_IDICC;
+	return val;
+}
+
+void tc_writel(unsigned long data, volatile __u32 * addr)
+{
+	addr = PHYSADDR(addr);
+	*(volatile u32 *) (ulong) & tx3927_pcicptr->ipcidata =
+	    cpu_to_le32(data);
+	*(volatile u32 *) (ulong) & tx3927_pcicptr->ipciaddr =
+	    (unsigned long) addr;
+	*(volatile u32 *) (ulong) & tx3927_pcicptr->ipcibe =
+	    (PCI_IPCIBE_ICMD_MEMWRITE << PCI_IPCIBE_ICMD_SHIFT) |
+	    PCI_IPCIBE_IBE_LONG;
+	while (!(tx3927_pcicptr->istat & PCI_ISTAT_IDICC));
+	/* clear by setting */
+	tx3927_pcicptr->istat |= PCI_ISTAT_IDICC;
+}
+
+unsigned char tx_ioinb(unsigned char *addr)
+{
+	unsigned long val;
+	__u32 ioaddr;
+	int offset;
+	int byte;
+
+	ioaddr = (unsigned long) addr;
+	offset = ioaddr & 0x3;
+	if (offset == 0)
+		byte = 0x7;
+	else if (offset == 1)
+		byte = 0xb;
+	else if (offset == 2)
+		byte = 0xd;
+	else if (offset == 3)
+		byte = 0xe;
+	*(volatile u32 *) (ulong) & tx3927_pcicptr->ipciaddr =
+	    (unsigned long) ioaddr;
+	*(volatile u32 *) (ulong) & tx3927_pcicptr->ipcibe =
+	    (PCI_IPCIBE_ICMD_IOREAD << PCI_IPCIBE_ICMD_SHIFT) | byte;
+	while (!(tx3927_pcicptr->istat & PCI_ISTAT_IDICC));
+	val =
+	    le32_to_cpu(*(volatile u32 *) (ulong) & tx3927_pcicptr->
+			ipcidata);
+	val = val & 0xff;
+	/* clear by setting */
+	tx3927_pcicptr->istat |= PCI_ISTAT_IDICC;
+	return val;
+}
+
+void tx_iooutb(unsigned long data, unsigned char *addr)
+{
+	__u32 ioaddr;
+	int offset;
+	int byte;
+
+	data = data | (data << 8) | (data << 16) | (data << 24);
+	ioaddr = (unsigned long) addr;
+	offset = ioaddr & 0x3;
+	if (offset == 0)
+		byte = 0x7;
+	else if (offset == 1)
+		byte = 0xb;
+	else if (offset == 2)
+		byte = 0xd;
+	else if (offset == 3)
+		byte = 0xe;
+	*(volatile u32 *) (ulong) & tx3927_pcicptr->ipcidata = data;
+	*(volatile u32 *) (ulong) & tx3927_pcicptr->ipciaddr =
+	    (unsigned long) ioaddr;
+	*(volatile u32 *) (ulong) & tx3927_pcicptr->ipcibe =
+	    (PCI_IPCIBE_ICMD_IOWRITE << PCI_IPCIBE_ICMD_SHIFT) | byte;
+	while (!(tx3927_pcicptr->istat & PCI_ISTAT_IDICC));
+	/* clear by setting */
+	tx3927_pcicptr->istat |= PCI_ISTAT_IDICC;
+}
+
+unsigned short tx_ioinw(unsigned short *addr)
+{
+	unsigned long val;
+	__u32 ioaddr;
+	int offset;
+	int byte;
+
+	ioaddr = (unsigned long) addr;
+	offset = ioaddr & 0x3;
+	if (offset == 0)
+		byte = 0x3;
+	else if (offset == 2)
+		byte = 0xc;
+	*(volatile u32 *) (ulong) & tx3927_pcicptr->ipciaddr =
+	    (unsigned long) ioaddr;
+	*(volatile u32 *) (ulong) & tx3927_pcicptr->ipcibe =
+	    (PCI_IPCIBE_ICMD_IOREAD << PCI_IPCIBE_ICMD_SHIFT) | byte;
+	while (!(tx3927_pcicptr->istat & PCI_ISTAT_IDICC));
+	val =
+	    le32_to_cpu(*(volatile u32 *) (ulong) & tx3927_pcicptr->
+			ipcidata);
+	val = val & 0xffff;
+	/* clear by setting */
+	tx3927_pcicptr->istat |= PCI_ISTAT_IDICC;
+	return val;
+
+}
+
+void tx_iooutw(unsigned long data, unsigned short *addr)
+{
+	__u32 ioaddr;
+	int offset;
+	int byte;
+
+	data = data | (data << 16);
+	ioaddr = (unsigned long) addr;
+	offset = ioaddr & 0x3;
+	if (offset == 0)
+		byte = 0x3;
+	else if (offset == 2)
+		byte = 0xc;
+	*(volatile u32 *) (ulong) & tx3927_pcicptr->ipcidata = data;
+	*(volatile u32 *) (ulong) & tx3927_pcicptr->ipciaddr =
+	    (unsigned long) ioaddr;
+	*(volatile u32 *) (ulong) & tx3927_pcicptr->ipcibe =
+	    (PCI_IPCIBE_ICMD_IOWRITE << PCI_IPCIBE_ICMD_SHIFT) | byte;
+	while (!(tx3927_pcicptr->istat & PCI_ISTAT_IDICC));
+	/* clear by setting */
+	tx3927_pcicptr->istat |= PCI_ISTAT_IDICC;
+}
+
+unsigned long tx_ioinl(unsigned int *addr)
+{
+	unsigned long val;
+	__u32 ioaddr;
+
+	ioaddr = (unsigned long) addr;
+	*(volatile u32 *) (ulong) & tx3927_pcicptr->ipciaddr =
+	    (unsigned long) ioaddr;
+	*(volatile u32 *) (ulong) & tx3927_pcicptr->ipcibe =
+	    (PCI_IPCIBE_ICMD_IOREAD << PCI_IPCIBE_ICMD_SHIFT) |
+	    PCI_IPCIBE_IBE_LONG;
+	while (!(tx3927_pcicptr->istat & PCI_ISTAT_IDICC));
+	val =
+	    le32_to_cpu(*(volatile u32 *) (ulong) & tx3927_pcicptr->
+			ipcidata);
+	/* clear by setting */
+	tx3927_pcicptr->istat |= PCI_ISTAT_IDICC;
+	return val;
+}
+
+void tx_iooutl(unsigned long data, unsigned int *addr)
+{
+	__u32 ioaddr;
+
+	ioaddr = (unsigned long) addr;
+	*(volatile u32 *) (ulong) & tx3927_pcicptr->ipcidata =
+	    cpu_to_le32(data);
+	*(volatile u32 *) (ulong) & tx3927_pcicptr->ipciaddr =
+	    (unsigned long) ioaddr;
+	*(volatile u32 *) (ulong) & tx3927_pcicptr->ipcibe =
+	    (PCI_IPCIBE_ICMD_IOWRITE << PCI_IPCIBE_ICMD_SHIFT) |
+	    PCI_IPCIBE_IBE_LONG;
+	while (!(tx3927_pcicptr->istat & PCI_ISTAT_IDICC));
+	/* clear by setting */
+	tx3927_pcicptr->istat |= PCI_ISTAT_IDICC;
+}
+
+void tx_insbyte(unsigned char *addr, void *buffer, unsigned int count)
+{
+	unsigned char *ptr = (unsigned char *) buffer;
+
+	while (count--) {
+		*ptr++ = tx_ioinb(addr);
+	}
+}
+
+void tx_insword(unsigned short *addr, void *buffer, unsigned int count)
+{
+	unsigned short *ptr = (unsigned short *) buffer;
+
+	while (count--) {
+		*ptr++ = tx_ioinw(addr);
+	}
+}
+
+void tx_inslong(unsigned int *addr, void *buffer, unsigned int count)
+{
+	unsigned long *ptr = (unsigned long *) buffer;
+
+	while (count--) {
+		*ptr++ = tx_ioinl(addr);
+	}
+}
+
+void tx_outsbyte(unsigned char *addr, void *buffer, unsigned int count)
+{
+	unsigned char *ptr = (unsigned char *) buffer;
+
+	while (count--) {
+		tx_iooutb(*ptr++, addr);
+	}
+}
+
+void tx_outsword(unsigned short *addr, void *buffer, unsigned int count)
+{
+	unsigned short *ptr = (unsigned short *) buffer;
+
+	while (count--) {
+		tx_iooutw(*ptr++, addr);
+	}
+}
+
+void tx_outslong(unsigned int *addr, void *buffer, unsigned int count)
+{
+	unsigned long *ptr = (unsigned long *) buffer;
+
+	while (count--) {
+		tx_iooutl(*ptr++, addr);
+	}
+}
+#endif