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-rw-r--r--arch/mips/pci/Makefile2
-rw-r--r--arch/mips/pci/pci-bcm47xx.c60
-rw-r--r--arch/mips/pci/pci-ip27.c40
-rw-r--r--arch/mips/pci/pci-tx4938.c2
-rw-r--r--arch/mips/pci/pci-tx4939.c109
5 files changed, 203 insertions, 10 deletions
diff --git a/arch/mips/pci/Makefile b/arch/mips/pci/Makefile
index 15e01aec37f..b1886244ced 100644
--- a/arch/mips/pci/Makefile
+++ b/arch/mips/pci/Makefile
@@ -15,6 +15,7 @@ obj-$(CONFIG_SOC_TX3927) += ops-tx3927.o
obj-$(CONFIG_PCI_VR41XX) += ops-vr41xx.o pci-vr41xx.o
obj-$(CONFIG_MARKEINS) += ops-emma2rh.o pci-emma2rh.o fixup-emma2rh.o
obj-$(CONFIG_PCI_TX4927) += ops-tx4927.o
+obj-$(CONFIG_BCM47XX) += pci-bcm47xx.o
#
# These are still pretty much in the old state, watch, go blind.
@@ -44,6 +45,7 @@ obj-$(CONFIG_TANBAC_TB0287) += fixup-tb0287.o
obj-$(CONFIG_TOSHIBA_JMR3927) += fixup-jmr3927.o
obj-$(CONFIG_SOC_TX4927) += pci-tx4927.o
obj-$(CONFIG_SOC_TX4938) += pci-tx4938.o
+obj-$(CONFIG_SOC_TX4939) += pci-tx4939.o
obj-$(CONFIG_TOSHIBA_RBTX4927) += fixup-rbtx4927.o
obj-$(CONFIG_TOSHIBA_RBTX4938) += fixup-rbtx4938.o
obj-$(CONFIG_VICTOR_MPC30X) += fixup-mpc30x.o
diff --git a/arch/mips/pci/pci-bcm47xx.c b/arch/mips/pci/pci-bcm47xx.c
new file mode 100644
index 00000000000..bea9b6cdfdb
--- /dev/null
+++ b/arch/mips/pci/pci-bcm47xx.c
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2008 Aurelien Jarno <aurelien@aurel32.net>
+ *
+ * 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/ssb/ssb.h>
+
+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+ return 0;
+}
+
+int pcibios_plat_dev_init(struct pci_dev *dev)
+{
+ int res;
+ u8 slot, pin;
+
+ res = ssb_pcibios_plat_dev_init(dev);
+ if (res < 0) {
+ printk(KERN_ALERT "PCI: Failed to init device %s\n",
+ pci_name(dev));
+ return res;
+ }
+
+ pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin);
+ slot = PCI_SLOT(dev->devfn);
+ res = ssb_pcibios_map_irq(dev, slot, pin);
+
+ /* IRQ-0 and IRQ-1 are software interrupts. */
+ if (res < 2) {
+ printk(KERN_ALERT "PCI: Failed to map IRQ of device %s\n",
+ pci_name(dev));
+ return res;
+ }
+
+ dev->irq = res;
+ return 0;
+}
+
diff --git a/arch/mips/pci/pci-ip27.c b/arch/mips/pci/pci-ip27.c
index bd78368c82b..f97ab146101 100644
--- a/arch/mips/pci/pci-ip27.c
+++ b/arch/mips/pci/pci-ip27.c
@@ -143,25 +143,47 @@ int __cpuinit bridge_probe(nasid_t nasid, int widget_id, int masterwid)
*/
int __devinit pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
+ return 0;
+}
+
+/* Most MIPS systems have straight-forward swizzling needs. */
+static inline u8 bridge_swizzle(u8 pin, u8 slot)
+{
+ return (((pin - 1) + slot) % 4) + 1;
+}
+
+static inline struct pci_dev *bridge_root_dev(struct pci_dev *dev)
+{
+ while (dev->bus->parent) {
+ /* Move up the chain of bridges. */
+ dev = dev->bus->self;
+ }
+
+ return dev;
+}
+
+/* Do platform specific device initialization at pci_enable_device() time */
+int pcibios_plat_dev_init(struct pci_dev *dev)
+{
struct bridge_controller *bc = BRIDGE_CONTROLLER(dev->bus);
- int irq = bc->pci_int[slot];
+ struct pci_dev *rdev = bridge_root_dev(dev);
+ int slot = PCI_SLOT(rdev->devfn);
+ int irq;
+ irq = bc->pci_int[slot];
if (irq == -1) {
- irq = bc->pci_int[slot] = request_bridge_irq(bc);
+ irq = request_bridge_irq(bc);
if (irq < 0)
- panic("Can't allocate interrupt for PCI device %s\n",
- pci_name(dev));
+ return irq;
+
+ bc->pci_int[slot] = irq;
}
irq_to_bridge[irq] = bc;
irq_to_slot[irq] = slot;
- return irq;
-}
+ dev->irq = irq;
-/* Do platform specific device initialization at pci_enable_device() time */
-int pcibios_plat_dev_init(struct pci_dev *dev)
-{
return 0;
}
diff --git a/arch/mips/pci/pci-tx4938.c b/arch/mips/pci/pci-tx4938.c
index 60e2c52c2c5..1ea257bc3b8 100644
--- a/arch/mips/pci/pci-tx4938.c
+++ b/arch/mips/pci/pci-tx4938.c
@@ -114,7 +114,7 @@ int __init tx4938_pciclk66_setup(void)
return pciclk;
}
-int tx4938_pcic1_map_irq(const struct pci_dev *dev, u8 slot)
+int __init tx4938_pcic1_map_irq(const struct pci_dev *dev, u8 slot)
{
if (get_tx4927_pcicptr(dev->bus->sysdata) == tx4938_pcic1ptr) {
switch (slot) {
diff --git a/arch/mips/pci/pci-tx4939.c b/arch/mips/pci/pci-tx4939.c
new file mode 100644
index 00000000000..5fecf1cdc32
--- /dev/null
+++ b/arch/mips/pci/pci-tx4939.c
@@ -0,0 +1,109 @@
+/*
+ * linux/arch/mips/pci/pci-tx4939.c
+ *
+ * Based on linux/arch/mips/txx9/rbtx4939/setup.c,
+ * and RBTX49xx patch from CELF patch archive.
+ *
+ * Copyright 2001, 2003-2005 MontaVista Software Inc.
+ * Copyright (C) 2004 by Ralf Baechle (ralf@linux-mips.org)
+ * (C) Copyright TOSHIBA CORPORATION 2000-2001, 2004-2007
+ *
+ * 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.
+ */
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/tx4939.h>
+
+int __init tx4939_report_pciclk(void)
+{
+ int pciclk = 0;
+
+ pr_info("PCIC --%s PCICLK:",
+ (__raw_readq(&tx4939_ccfgptr->ccfg) & TX4939_CCFG_PCI66) ?
+ " PCI66" : "");
+ if (__raw_readq(&tx4939_ccfgptr->pcfg) & TX4939_PCFG_PCICLKEN_ALL) {
+ pciclk = txx9_master_clock * 20 / 6;
+ if (!(__raw_readq(&tx4939_ccfgptr->ccfg) & TX4939_CCFG_PCI66))
+ pciclk /= 2;
+ printk(KERN_CONT "Internal(%u.%uMHz)",
+ (pciclk + 50000) / 1000000,
+ ((pciclk + 50000) / 100000) % 10);
+ } else {
+ printk(KERN_CONT "External");
+ pciclk = -1;
+ }
+ printk(KERN_CONT "\n");
+ return pciclk;
+}
+
+void __init tx4939_report_pci1clk(void)
+{
+ unsigned int pciclk = txx9_master_clock * 20 / 6;
+
+ pr_info("PCIC1 -- PCICLK:%u.%uMHz\n",
+ (pciclk + 50000) / 1000000,
+ ((pciclk + 50000) / 100000) % 10);
+}
+
+int __init tx4939_pcic1_map_irq(const struct pci_dev *dev, u8 slot)
+{
+ if (get_tx4927_pcicptr(dev->bus->sysdata) == tx4939_pcic1ptr) {
+ switch (slot) {
+ case TX4927_PCIC_IDSEL_AD_TO_SLOT(31):
+ if (__raw_readq(&tx4939_ccfgptr->pcfg) &
+ TX4939_PCFG_ET0MODE)
+ return TXX9_IRQ_BASE + TX4939_IR_ETH(0);
+ break;
+ case TX4927_PCIC_IDSEL_AD_TO_SLOT(30):
+ if (__raw_readq(&tx4939_ccfgptr->pcfg) &
+ TX4939_PCFG_ET1MODE)
+ return TXX9_IRQ_BASE + TX4939_IR_ETH(1);
+ break;
+ }
+ return 0;
+ }
+ return -1;
+}
+
+int __init tx4939_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+ int irq = tx4939_pcic1_map_irq(dev, slot);
+
+ if (irq >= 0)
+ return irq;
+ irq = pin;
+ /* IRQ rotation */
+ irq--; /* 0-3 */
+ irq = (irq + 33 - slot) % 4;
+ irq++; /* 1-4 */
+
+ switch (irq) {
+ case 1:
+ irq = TXX9_IRQ_BASE + TX4939_IR_INTA;
+ break;
+ case 2:
+ irq = TXX9_IRQ_BASE + TX4939_IR_INTB;
+ break;
+ case 3:
+ irq = TXX9_IRQ_BASE + TX4939_IR_INTC;
+ break;
+ case 4:
+ irq = TXX9_IRQ_BASE + TX4939_IR_INTD;
+ break;
+ }
+ return irq;
+}
+
+void __init tx4939_setup_pcierr_irq(void)
+{
+ if (request_irq(TXX9_IRQ_BASE + TX4939_IR_PCIERR,
+ tx4927_pcierr_interrupt,
+ IRQF_DISABLED, "PCI error",
+ (void *)TX4939_PCIC_REG))
+ pr_warning("Failed to request irq for PCIERR\n");
+}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-15 08:44:24 +0000