[brcm63xx] move files to files-2.6.30, to ease newer kernel integration

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19471 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 0 insertions, 467 deletions

diff --git a/target/linux/brcm63xx/files/arch/mips/pci/ops-bcm63xx.c b/target/linux/brcm63xx/files/arch/mips/pci/ops-bcm63xx.c
deleted file mode 100644
index 822ae179b..000000000
--- a/target/linux/brcm63xx/files/arch/mips/pci/ops-bcm63xx.c
+++ /dev/null
@@ -1,467 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
- */
-
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/io.h>
-
-#include "pci-bcm63xx.h"
-
-/*
- * swizzle 32bits data to return only the needed part
- */
-static int postprocess_read(u32 data, int where, unsigned int size)
-{
-	u32 ret;
-
-	ret = 0;
-	switch (size) {
-	case 1:
-		ret = (data >> ((where & 3) << 3)) & 0xff;
-		break;
-	case 2:
-		ret = (data >> ((where & 3) << 3)) & 0xffff;
-		break;
-	case 4:
-		ret = data;
-		break;
-	}
-	return ret;
-}
-
-static int preprocess_write(u32 orig_data, u32 val, int where,
-			    unsigned int size)
-{
-	u32 ret;
-
-	ret = 0;
-	switch (size) {
-	case 1:
-		ret = (orig_data & ~(0xff << ((where & 3) << 3))) |
-			(val << ((where & 3) << 3));
-		break;
-	case 2:
-		ret = (orig_data & ~(0xffff << ((where & 3) << 3))) |
-			(val << ((where & 3) << 3));
-		break;
-	case 4:
-		ret = val;
-		break;
-	}
-	return ret;
-}
-
-/*
- * setup hardware for a configuration cycle with given parameters
- */
-static int bcm63xx_setup_cfg_access(int type, unsigned int busn,
-				    unsigned int devfn, int where)
-{
-	unsigned int slot, func, reg;
-	u32 val;
-
-	slot = PCI_SLOT(devfn);
-	func = PCI_FUNC(devfn);
-	reg = where >> 2;
-
-	/* sanity check */
-	if (slot > (MPI_L2PCFG_DEVNUM_MASK >> MPI_L2PCFG_DEVNUM_SHIFT))
-		return 1;
-
-	if (func > (MPI_L2PCFG_FUNC_MASK >> MPI_L2PCFG_FUNC_SHIFT))
-		return 1;
-
-	if (reg > (MPI_L2PCFG_REG_MASK >> MPI_L2PCFG_REG_SHIFT))
-		return 1;
-
-	/* ok, setup config access */
-	val = (reg << MPI_L2PCFG_REG_SHIFT);
-	val |= (func << MPI_L2PCFG_FUNC_SHIFT);
-	val |= (slot << MPI_L2PCFG_DEVNUM_SHIFT);
-	val |= MPI_L2PCFG_CFG_USEREG_MASK;
-	val |= MPI_L2PCFG_CFG_SEL_MASK;
-	/* type 0 cycle for local bus, type 1 cycle for anything else */
-	if (type != 0) {
-		/* FIXME: how to specify bus ??? */
-		val |= (1 << MPI_L2PCFG_CFG_TYPE_SHIFT);
-	}
-	bcm_mpi_writel(val, MPI_L2PCFG_REG);
-
-	return 0;
-}
-
-static int bcm63xx_do_cfg_read(int type, unsigned int busn,
-				unsigned int devfn, int where, int size,
-				u32 *val)
-{
-	u32 data;
-
-	/* two phase cycle, first we write address, then read data at
-	 * another location, caller already has a spinlock so no need
-	 * to add one here  */
-	if (bcm63xx_setup_cfg_access(type, busn, devfn, where))
-		return PCIBIOS_DEVICE_NOT_FOUND;
-	iob();
-	data = le32_to_cpu(__raw_readl(pci_iospace_start));
-	/* restore IO space normal behaviour */
-	bcm_mpi_writel(0, MPI_L2PCFG_REG);
-
-	*val = postprocess_read(data, where, size);
-
-	return PCIBIOS_SUCCESSFUL;
-}
-
-static int bcm63xx_do_cfg_write(int type, unsigned int busn,
-				 unsigned int devfn, int where, int size,
-				 u32 val)
-{
-	u32 data;
-
-	/* two phase cycle, first we write address, then write data to
-	 * another location, caller already has a spinlock so no need
-	 * to add one here  */
-	if (bcm63xx_setup_cfg_access(type, busn, devfn, where))
-		return PCIBIOS_DEVICE_NOT_FOUND;
-	iob();
-
-	data = le32_to_cpu(__raw_readl(pci_iospace_start));
-	data = preprocess_write(data, val, where, size);
-
-	__raw_writel(cpu_to_le32(data), pci_iospace_start);
-	wmb();
-	/* no way to know the access is done, we have to wait */
-	udelay(500);
-	/* restore IO space normal behaviour */
-	bcm_mpi_writel(0, MPI_L2PCFG_REG);
-
-	return PCIBIOS_SUCCESSFUL;
-}
-
-static int bcm63xx_pci_read(struct pci_bus *bus, unsigned int devfn,
-			     int where, int size, u32 *val)
-{
-	int type;
-
-	type = bus->parent ? 1 : 0;
-
-	if (type == 0 && PCI_SLOT(devfn) == CARDBUS_PCI_IDSEL)
-		return PCIBIOS_DEVICE_NOT_FOUND;
-
-	return bcm63xx_do_cfg_read(type, bus->number, devfn,
-				    where, size, val);
-}
-
-static int bcm63xx_pci_write(struct pci_bus *bus, unsigned int devfn,
-			      int where, int size, u32 val)
-{
-	int type;
-
-	type = bus->parent ? 1 : 0;
-
-	if (type == 0 && PCI_SLOT(devfn) == CARDBUS_PCI_IDSEL)
-		return PCIBIOS_DEVICE_NOT_FOUND;
-
-	return bcm63xx_do_cfg_write(type, bus->number, devfn,
-				     where, size, val);
-}
-
-struct pci_ops bcm63xx_pci_ops = {
-	.read   = bcm63xx_pci_read,
-	.write  = bcm63xx_pci_write
-};
-
-#ifdef CONFIG_CARDBUS
-/*
- * emulate configuration read access on a cardbus bridge
- */
-#define FAKE_CB_BRIDGE_SLOT	0x1e
-
-static int fake_cb_bridge_bus_number = -1;
-
-static struct {
-	u16 pci_command;
-	u8 cb_latency;
-	u8 subordinate_busn;
-	u8 cardbus_busn;
-	u8 pci_busn;
-	int bus_assigned;
-	u16 bridge_control;
-
-	u32 mem_base0;
-	u32 mem_limit0;
-	u32 mem_base1;
-	u32 mem_limit1;
-
-	u32 io_base0;
-	u32 io_limit0;
-	u32 io_base1;
-	u32 io_limit1;
-} fake_cb_bridge_regs;
-
-static int fake_cb_bridge_read(int where, int size, u32 *val)
-{
-	unsigned int reg;
-	u32 data;
-
-	data = 0;
-	reg = where >> 2;
-	switch (reg) {
-	case (PCI_VENDOR_ID >> 2):
-	case (PCI_CB_SUBSYSTEM_VENDOR_ID >> 2):
-		/* create dummy vendor/device id from our cpu id */
-		data = (bcm63xx_get_cpu_id() << 16) | PCI_VENDOR_ID_BROADCOM;
-		break;
-
-	case (PCI_COMMAND >> 2):
-		data = (PCI_STATUS_DEVSEL_SLOW << 16);
-		data |= fake_cb_bridge_regs.pci_command;
-		break;
-
-	case (PCI_CLASS_REVISION >> 2):
-		data = (PCI_CLASS_BRIDGE_CARDBUS << 16);
-		break;
-
-	case (PCI_CACHE_LINE_SIZE >> 2):
-		data = (PCI_HEADER_TYPE_CARDBUS << 16);
-		break;
-
-	case (PCI_INTERRUPT_LINE >> 2):
-		/* bridge control */
-		data = (fake_cb_bridge_regs.bridge_control << 16);
-		/* pin:intA line:0xff */
-		data |= (0x1 << 8) | 0xff;
-		break;
-
-	case (PCI_CB_PRIMARY_BUS >> 2):
-		data = (fake_cb_bridge_regs.cb_latency << 24);
-		data |= (fake_cb_bridge_regs.subordinate_busn << 16);
-		data |= (fake_cb_bridge_regs.cardbus_busn << 8);
-		data |= fake_cb_bridge_regs.pci_busn;
-		break;
-
-	case (PCI_CB_MEMORY_BASE_0 >> 2):
-		data = fake_cb_bridge_regs.mem_base0;
-		break;
-
-	case (PCI_CB_MEMORY_LIMIT_0 >> 2):
-		data = fake_cb_bridge_regs.mem_limit0;
-		break;
-
-	case (PCI_CB_MEMORY_BASE_1 >> 2):
-		data = fake_cb_bridge_regs.mem_base1;
-		break;
-
-	case (PCI_CB_MEMORY_LIMIT_1 >> 2):
-		data = fake_cb_bridge_regs.mem_limit1;
-		break;
-
-	case (PCI_CB_IO_BASE_0 >> 2):
-		/* | 1 for 32bits io support */
-		data = fake_cb_bridge_regs.io_base0 | 0x1;
-		break;
-
-	case (PCI_CB_IO_LIMIT_0 >> 2):
-		data = fake_cb_bridge_regs.io_limit0;
-		break;
-
-	case (PCI_CB_IO_BASE_1 >> 2):
-		/* | 1 for 32bits io support */
-		data = fake_cb_bridge_regs.io_base1 | 0x1;
-		break;
-
-	case (PCI_CB_IO_LIMIT_1 >> 2):
-		data = fake_cb_bridge_regs.io_limit1;
-		break;
-	}
-
-	*val = postprocess_read(data, where, size);
-	return PCIBIOS_SUCCESSFUL;
-}
-
-/*
- * emulate configuration write access on a cardbus bridge
- */
-static int fake_cb_bridge_write(int where, int size, u32 val)
-{
-	unsigned int reg;
-	u32 data, tmp;
-	int ret;
-
-	ret = fake_cb_bridge_read((where & ~0x3), 4, &data);
-	if (ret != PCIBIOS_SUCCESSFUL)
-		return ret;
-
-	data = preprocess_write(data, val, where, size);
-
-	reg = where >> 2;
-	switch (reg) {
-	case (PCI_COMMAND >> 2):
-		fake_cb_bridge_regs.pci_command = (data & 0xffff);
-		break;
-
-	case (PCI_CB_PRIMARY_BUS >> 2):
-		fake_cb_bridge_regs.cb_latency = (data >> 24) & 0xff;
-		fake_cb_bridge_regs.subordinate_busn = (data >> 16) & 0xff;
-		fake_cb_bridge_regs.cardbus_busn = (data >> 8) & 0xff;
-		fake_cb_bridge_regs.pci_busn = data & 0xff;
-		if (fake_cb_bridge_regs.cardbus_busn)
-			fake_cb_bridge_regs.bus_assigned = 1;
-		break;
-
-	case (PCI_INTERRUPT_LINE >> 2):
-		tmp = (data >> 16) & 0xffff;
-		/* disable memory prefetch support */
-		tmp &= ~PCI_CB_BRIDGE_CTL_PREFETCH_MEM0;
-		tmp &= ~PCI_CB_BRIDGE_CTL_PREFETCH_MEM1;
-		fake_cb_bridge_regs.bridge_control = tmp;
-		break;
-
-	case (PCI_CB_MEMORY_BASE_0 >> 2):
-		fake_cb_bridge_regs.mem_base0 = data;
-		break;
-
-	case (PCI_CB_MEMORY_LIMIT_0 >> 2):
-		fake_cb_bridge_regs.mem_limit0 = data;
-		break;
-
-	case (PCI_CB_MEMORY_BASE_1 >> 2):
-		fake_cb_bridge_regs.mem_base1 = data;
-		break;
-
-	case (PCI_CB_MEMORY_LIMIT_1 >> 2):
-		fake_cb_bridge_regs.mem_limit1 = data;
-		break;
-
-	case (PCI_CB_IO_BASE_0 >> 2):
-		fake_cb_bridge_regs.io_base0 = data;
-		break;
-
-	case (PCI_CB_IO_LIMIT_0 >> 2):
-		fake_cb_bridge_regs.io_limit0 = data;
-		break;
-
-	case (PCI_CB_IO_BASE_1 >> 2):
-		fake_cb_bridge_regs.io_base1 = data;
-		break;
-
-	case (PCI_CB_IO_LIMIT_1 >> 2):
-		fake_cb_bridge_regs.io_limit1 = data;
-		break;
-	}
-
-	return PCIBIOS_SUCCESSFUL;
-}
-
-static int bcm63xx_cb_read(struct pci_bus *bus, unsigned int devfn,
-			   int where, int size, u32 *val)
-{
-	/* snoop access to slot 0x1e on root bus, we fake a cardbus
-	 * bridge at this location */
-	if (!bus->parent && PCI_SLOT(devfn) == FAKE_CB_BRIDGE_SLOT) {
-		fake_cb_bridge_bus_number = bus->number;
-		return fake_cb_bridge_read(where, size, val);
-	}
-
-	/* a  configuration  cycle for  the  device  behind the  cardbus
-	 * bridge is  actually done as a  type 0 cycle  on the primary
-	 * bus. This means that only  one device can be on the cardbus
-	 * bus */
-	if (fake_cb_bridge_regs.bus_assigned &&
-	    bus->number == fake_cb_bridge_regs.cardbus_busn &&
-	    PCI_SLOT(devfn) == 0)
-		return bcm63xx_do_cfg_read(0, 0,
-					   PCI_DEVFN(CARDBUS_PCI_IDSEL, 0),
-					   where, size, val);
-
-	return PCIBIOS_DEVICE_NOT_FOUND;
-}
-
-static int bcm63xx_cb_write(struct pci_bus *bus, unsigned int devfn,
-			    int where, int size, u32 val)
-{
-	if (!bus->parent && PCI_SLOT(devfn) == FAKE_CB_BRIDGE_SLOT) {
-		fake_cb_bridge_bus_number = bus->number;
-		return fake_cb_bridge_write(where, size, val);
-	}
-
-	if (fake_cb_bridge_regs.bus_assigned &&
-	    bus->number == fake_cb_bridge_regs.cardbus_busn &&
-	    PCI_SLOT(devfn) == 0)
-		return bcm63xx_do_cfg_write(0, 0,
-					    PCI_DEVFN(CARDBUS_PCI_IDSEL, 0),
-					    where, size, val);
-
-	return PCIBIOS_DEVICE_NOT_FOUND;
-}
-
-struct pci_ops bcm63xx_cb_ops = {
-	.read   = bcm63xx_cb_read,
-	.write   = bcm63xx_cb_write,
-};
-
-/*
- * only one IO window, so it  cannot be shared by PCI and cardbus, use
- * fixup to choose and detect unhandled configuration
- */
-static void bcm63xx_fixup(struct pci_dev *dev)
-{
-	static int io_window = -1;
-	int i, found, new_io_window;
-	u32 val;
-
-	/* look for any io resource */
-	found = 0;
-	for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
-		if (pci_resource_flags(dev, i) & IORESOURCE_IO) {
-			found = 1;
-			break;
-		}
-	}
-
-	if (!found)
-		return;
-
-	/* skip our fake bus with only cardbus bridge on it */
-	if (dev->bus->number == fake_cb_bridge_bus_number)
-		return;
-
-	/* find on which bus the device is */
-	if (fake_cb_bridge_regs.bus_assigned &&
-	    dev->bus->number == fake_cb_bridge_regs.cardbus_busn &&
-	    PCI_SLOT(dev->devfn) == 0)
-		new_io_window = 1;
-	else
-		new_io_window = 0;
-
-	if (new_io_window == io_window)
-		return;
-
-	if (io_window != -1) {
-		printk(KERN_ERR "bcm63xx: both PCI and cardbus devices "
-		       "need IO, which hardware cannot do\n");
-		return;
-	}
-
-	printk(KERN_INFO "bcm63xx: PCI IO window assigned to %s\n",
-	       (new_io_window == 0) ? "PCI" : "cardbus");
-
-	val = bcm_mpi_readl(MPI_L2PIOREMAP_REG);
-	if (io_window)
-		val |= MPI_L2PREMAP_IS_CARDBUS_MASK;
-	else
-		val &= ~MPI_L2PREMAP_IS_CARDBUS_MASK;
-	bcm_mpi_writel(val, MPI_L2PIOREMAP_REG);
-
-	io_window = new_io_window;
-}
-
-DECLARE_PCI_FIXUP_ENABLE(PCI_ANY_ID, PCI_ANY_ID, bcm63xx_fixup);
-#endif