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-rw-r--r--target/linux/adm5120/files/arch/mips/pci/fixup-adm5120.c175
-rw-r--r--target/linux/adm5120/files/arch/mips/pci/ops-adm5120.c143
-rw-r--r--target/linux/adm5120/files/arch/mips/pci/pci-adm5120.c80
3 files changed, 398 insertions, 0 deletions
diff --git a/target/linux/adm5120/files/arch/mips/pci/fixup-adm5120.c b/target/linux/adm5120/files/arch/mips/pci/fixup-adm5120.c
new file mode 100644
index 000000000..59acf75c1
--- /dev/null
+++ b/target/linux/adm5120/files/arch/mips/pci/fixup-adm5120.c
@@ -0,0 +1,175 @@
+/*
+ * $Id$
+ *
+ * ADM5120 specific PCI fixups
+ *
+ * Copyright (C) ADMtek Incorporated.
+ * Copyright (C) 2005 Jeroen Vreeken (pe1rxq@amsat.org)
+ * Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org>
+ * Copyright (C) 2007 OpenWrt.org
+ *
+ * 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 program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * 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., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/pci_ids.h>
+#include <linux/pci_regs.h>
+
+#include <asm/delay.h>
+#include <asm/bootinfo.h>
+
+#include <asm/mach-adm5120/adm5120_info.h>
+#include <asm/mach-adm5120/adm5120_defs.h>
+#include <asm/mach-adm5120/adm5120_irq.h>
+
+struct adm5120_pci_irq {
+ u8 slot;
+ u8 func;
+ u8 pin;
+ unsigned irq;
+};
+
+#define PCIIRQ(s,f,p,i) { \
+ .slot = (s), \
+ .func = (f), \
+ .pin = (p), \
+ .irq = (i) \
+ }
+
+static struct adm5120_pci_irq default_pci_irqs[] __initdata = {
+ PCIIRQ(2, 0, 1, ADM5120_IRQ_PCI0),
+};
+
+static struct adm5120_pci_irq rb1xx_pci_irqs[] __initdata = {
+ PCIIRQ(1, 0, 1, ADM5120_IRQ_PCI0),
+ PCIIRQ(2, 0, 1, ADM5120_IRQ_PCI1),
+ PCIIRQ(3, 0, 1, ADM5120_IRQ_PCI2)
+};
+
+static struct adm5120_pci_irq cas771_pci_irqs[] __initdata = {
+ PCIIRQ(2, 0, 1, ADM5120_IRQ_PCI0),
+ PCIIRQ(3, 0, 1, ADM5120_IRQ_PCI1),
+ PCIIRQ(3, 2, 3, ADM5120_IRQ_PCI2)
+};
+
+static struct adm5120_pci_irq np28g_pci_irqs[] __initdata = {
+ PCIIRQ(2, 0, 1, ADM5120_IRQ_PCI0),
+ PCIIRQ(3, 0, 1, ADM5120_IRQ_PCI0),
+ PCIIRQ(3, 1, 2, ADM5120_IRQ_PCI1),
+ PCIIRQ(3, 2, 3, ADM5120_IRQ_PCI2)
+};
+
+#define GETMAP(n) do { \
+ nr_irqs = ARRAY_SIZE(n ## _pci_irqs); \
+ p = n ## _pci_irqs; \
+ } while (0)
+
+int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+ struct adm5120_pci_irq *p;
+ int nr_irqs;
+ int i;
+ int irq;
+
+ irq = -1;
+ if (slot < 1 || slot > 3) {
+ printk(KERN_ALERT "PCI: slot number %u is not supported\n",
+ slot);
+ goto out;
+ }
+
+ GETMAP(default);
+
+ switch (mips_machtype) {
+ case MACH_ADM5120_RB_111:
+ case MACH_ADM5120_RB_112:
+ case MACH_ADM5120_RB_133:
+ case MACH_ADM5120_RB_133C:
+ case MACH_ADM5120_RB_153:
+ GETMAP(rb1xx);
+ break;
+ case MACH_ADM5120_NP28G:
+ GETMAP(np28g);
+ break;
+ case MACH_ADM5120_P335:
+ case MACH_ADM5120_P334WT:
+ /* using default mapping */
+ break;
+ case MACH_ADM5120_CAS771:
+ GETMAP(cas771);
+ break;
+
+ case MACH_ADM5120_NP27G:
+ case MACH_ADM5120_NP28GHS:
+ case MACH_ADM5120_WP54AG:
+ case MACH_ADM5120_WP54G:
+ case MACH_ADM5120_WP54G_WRT:
+ case MACH_ADM5120_WPP54AG:
+ case MACH_ADM5120_WPP54G:
+ default:
+ printk(KERN_ALERT "PCI: irq map is unknown, using defaults.\n");
+ break;
+ }
+
+ for (i=0; i<nr_irqs; i++, p++) {
+ if ((p->slot == slot) && (PCI_FUNC(dev->devfn) == p->func) &&
+ (p->pin == pin)) {
+ irq = p->irq;
+ break;
+ }
+ }
+
+ if (irq < 0) {
+ printk(KERN_ALERT "PCI: no irq found for %s pin:%u\n",
+ pci_name(dev), pin);
+ } else {
+ printk(KERN_INFO "PCI: mapping irq for %s pin:%u, irq:%d\n",
+ pci_name(dev), pin, irq);
+ }
+
+out:
+ return irq;
+}
+
+static void adm5120_pci_fixup(struct pci_dev *dev)
+{
+ if (dev->devfn != 0)
+ return;
+
+ /* setup COMMAND register */
+ pci_write_config_word(dev, PCI_COMMAND,
+ (PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER));
+
+ /* setup CACHE_LINE_SIZE register */
+ pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, 4);
+
+ /* setting up BARS */
+ pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, 0);
+ pci_write_config_dword(dev, PCI_BASE_ADDRESS_1, 0);
+}
+
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ADMTEK, PCI_DEVICE_ID_ADMTEK_ADM5120,
+ adm5120_pci_fixup);
+
+int pcibios_plat_dev_init(struct pci_dev *dev)
+{
+ return 0;
+}
+
diff --git a/target/linux/adm5120/files/arch/mips/pci/ops-adm5120.c b/target/linux/adm5120/files/arch/mips/pci/ops-adm5120.c
new file mode 100644
index 000000000..4a9bc999c
--- /dev/null
+++ b/target/linux/adm5120/files/arch/mips/pci/ops-adm5120.c
@@ -0,0 +1,143 @@
+/*
+ * $Id$
+ *
+ * ADM5120 specific PCI operations
+ *
+ * Copyright (C) ADMtek Incorporated.
+ * Copyright (C) 2005 Jeroen Vreeken (pe1rxq@amsat.org)
+ * Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org>
+ * Copyright (C) 2007 OpenWrt.org
+ *
+ * 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 program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * 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., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/spinlock.h>
+
+#include <asm/mach-adm5120/adm5120_defs.h>
+
+#define DEBUG 0
+#if DEBUG
+#define DBG(f, ...) printk(f, ## __VA_ARGS__ )
+#else
+#define DBG(f, ...)
+#endif
+
+#define PCI_ENABLE 0x80000000
+
+static spinlock_t pci_lock = SPIN_LOCK_UNLOCKED;
+
+static inline void write_cfgaddr(u32 addr)
+{
+ *(volatile u32*)KSEG1ADDR(ADM5120_PCICFG_ADDR) = (addr | PCI_ENABLE);
+}
+
+static inline void write_cfgdata(u32 data)
+{
+ *(volatile u32*)KSEG1ADDR(ADM5120_PCICFG_DATA) = data;
+
+}
+
+static inline u32 read_cfgdata(void)
+{
+ return (*(volatile u32*)KSEG1ADDR(ADM5120_PCICFG_DATA));
+}
+
+static inline u32 mkaddr(struct pci_bus *bus, unsigned int devfn, int where)
+{
+ return (((bus->number & 0xFF) << 16) | ((devfn & 0xFF) << 8) | \
+ (where & 0xFC));
+}
+
+static int pci_config_read(struct pci_bus *bus, unsigned int devfn, int where,
+ int size, u32 *val)
+{
+ unsigned long flags;
+ u32 data;
+
+ spin_lock_irqsave(&pci_lock, flags);
+ write_cfgaddr(mkaddr(bus,devfn,where));
+ data = read_cfgdata();
+
+ DBG("PCI: cfg_read %02u.%02u.%01u/%02X:%01d, cfg:0x%08X",
+ bus->number, PCI_SLOT(devfn), PCI_FUNC(devfn), where, size, data);
+
+ switch (size) {
+ case 1:
+ if (where & 1)
+ data >>= 8;
+ if (where & 2)
+ data >>= 16;
+ data &= 0xFF;
+ break;
+ case 2:
+ if (where & 2)
+ data >>= 16;
+ data &= 0xFFFF;
+ break;
+ }
+
+ *val = data;
+ DBG(", 0x%08X returned\n", data);
+ spin_unlock_irqrestore(&pci_lock, flags);
+
+ return PCIBIOS_SUCCESSFUL;
+}
+
+static int pci_config_write(struct pci_bus *bus, unsigned int devfn, int where,
+ int size, u32 val)
+{
+ unsigned long flags;
+ u32 data;
+ int s;
+
+ spin_lock_irqsave(&pci_lock, flags);
+ write_cfgaddr(mkaddr(bus,devfn,where));
+ data = read_cfgdata();
+
+ DBG("PCI: cfg_write %02u.%02u.%01u/%02X:%01d, cfg:0x%08X",
+ bus->number, PCI_SLOT(devfn), PCI_FUNC(devfn), where, size, data);
+
+ switch (size) {
+ case 1:
+ s = ((where & 3) << 3);
+ data &= ~(0xFF << s);
+ data |= ((val & 0xFF) << s);
+ break;
+ case 2:
+ s = ((where & 2) << 4);
+ data &= ~(0xFFFF << s);
+ data |= ((val & 0xFFFF) << s);
+ break;
+ case 4:
+ data = val;
+ break;
+ }
+
+ write_cfgdata(data);
+ DBG(", 0x%08X written\n", data);
+ spin_unlock_irqrestore(&pci_lock, flags);
+
+ return PCIBIOS_SUCCESSFUL;
+}
+
+struct pci_ops adm5120_pci_ops = {
+ .read = pci_config_read,
+ .write = pci_config_write,
+};
diff --git a/target/linux/adm5120/files/arch/mips/pci/pci-adm5120.c b/target/linux/adm5120/files/arch/mips/pci/pci-adm5120.c
new file mode 100644
index 000000000..2a6477023
--- /dev/null
+++ b/target/linux/adm5120/files/arch/mips/pci/pci-adm5120.c
@@ -0,0 +1,80 @@
+/*
+ * $Id$
+ *
+ * ADM5120 PCI Host Controller driver
+ *
+ * Copyright (C) ADMtek Incorporated.
+ * Copyright (C) 2005 Jeroen Vreeken (pe1rxq@amsat.org)
+ * Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org>
+ * Copyright (C) 2007 OpenWrt.org
+ *
+ * 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 program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * 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., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+#include <asm/mach-adm5120/adm5120_info.h>
+#include <asm/mach-adm5120/adm5120_defs.h>
+#include <asm/mach-adm5120/adm5120_irq.h>
+
+extern struct pci_ops adm5120_pci_ops;
+
+static struct resource pci_io_resource = {
+ .name = "ADM5120 PCI I/O",
+ .start = ADM5120_PCIIO_BASE,
+ .end = ADM5120_PCICFG_ADDR-1,
+ .flags = IORESOURCE_IO
+};
+
+static struct resource pci_mem_resource = {
+ .name = "ADM5120 PCI MEM",
+ .start = ADM5120_PCIMEM_BASE,
+ .end = ADM5120_PCIIO_BASE-1,
+ .flags = IORESOURCE_MEM
+};
+
+static struct pci_controller adm5120_controller = {
+ .pci_ops = &adm5120_pci_ops,
+ .io_resource = &pci_io_resource,
+ .mem_resource = &pci_mem_resource,
+};
+
+static int __init adm5120_pci_setup(void)
+{
+ int pci_bios;
+
+ pci_bios = adm5120_has_pci();
+
+ printk("adm5120: system has %sPCI BIOS\n", pci_bios ? "" : "no ");
+ if (pci_bios == 0)
+ return -1;
+
+ /* Avoid ISA compat ranges. */
+ PCIBIOS_MIN_IO = 0x00000000;
+ PCIBIOS_MIN_MEM = 0x00000000;
+
+ /* Set I/O resource limits. */
+ ioport_resource.end = 0x1fffffff;
+ iomem_resource.end = 0xffffffff;
+
+ register_pci_controller(&adm5120_controller);
+ return 0;
+}
+
+arch_initcall(adm5120_pci_setup);