X-Git-Url: http://git.rohieb.name/openwrt.git/blobdiff_plain/5389989abaa52926b22f9f030d1481df1e73d745..17c7b6c3fdc48301e50d22cc6138ede16bd1be24:/target/linux/ar7-2.6/files/arch/mips/ar7/vlynq-pci.c?ds=inline diff --git a/target/linux/ar7-2.6/files/arch/mips/ar7/vlynq-pci.c b/target/linux/ar7-2.6/files/arch/mips/ar7/vlynq-pci.c deleted file mode 100644 index eb11a3b00..000000000 --- a/target/linux/ar7-2.6/files/arch/mips/ar7/vlynq-pci.c +++ /dev/null @@ -1,402 +0,0 @@ -/* - * $Id$ - * - * Copyright (C) 2006, 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 St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include -#include -#include -#include -#include -#include - -#define VLYNQ_PCI_SLOTS 2 - -struct vlynq_reg_config { - u32 offset; - u32 value; -}; - -struct vlynq_pci_config { - u32 chip_id; - char name[32]; - struct vlynq_mapping rx_mapping[4]; - int irq; - int irq_type; - u32 chip; - u32 class; - int num_regs; - struct vlynq_reg_config regs[10]; -}; - -struct vlynq_pci_private { - u32 latency; - u32 cache_line; - u32 command; - u32 sz_mask; - struct vlynq_pci_config *config; -}; - -static struct vlynq_pci_config known_devices[] = { - { - .chip_id = 0x00000009, .name = "TI ACX111", - .rx_mapping = { - { .size = 0x22000, .offset = 0xf0000000 }, - { .size = 0x40000, .offset = 0xc0000000 }, - { .size = 0x0, .offset = 0x0 }, - { .size = 0x0, .offset = 0x0 }, - }, - .irq = 0, .chip = 0x9066104c, - .irq_type = IRQ_TYPE_EDGE_RISING, - .class = PCI_CLASS_NETWORK_OTHER, - .num_regs = 5, - .regs = { - { .offset = 0x790, .value = (0xd0000000 - (ARCH_PFN_OFFSET << PAGE_SHIFT)) }, - { .offset = 0x794, .value = (0xd0000000 - (ARCH_PFN_OFFSET << PAGE_SHIFT)) }, - { .offset = 0x740, .value = 0 }, - { .offset = 0x744, .value = 0x00010000 }, - { .offset = 0x764, .value = 0x00010000 }, - }, - }, -}; - -static struct vlynq_device *slots[VLYNQ_PCI_SLOTS] = { NULL, }; - -static struct resource vlynq_io_resource = { - .start = 0x00000000, - .end = 0x00000000, - .name = "pci IO space", - .flags = IORESOURCE_IO -}; - -static struct resource vlynq_mem_resource = { - .start = 0x00000000, - .end = 0x00000000, - .name = "pci memory space", - .flags = IORESOURCE_MEM -}; - -static inline u32 vlynq_get_mapped(struct vlynq_device *dev, int res) -{ - int i; - struct vlynq_pci_private *priv = dev->priv; - u32 ret = dev->mem_start; - if (!priv->config->rx_mapping[res].size) return 0; - for (i = 0; i < res; i++) - ret += priv->config->rx_mapping[i].size; - - return ret; -} - -static inline u32 vlynq_read(u32 val, int size) { - switch (size) { - case 1: - return *(u8 *)&val; - case 2: - return *(u16 *)&val; - } - return val; -} - -static int vlynq_config_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *val) -{ - struct vlynq_device *dev; - struct vlynq_pci_private *priv; - int resno, slot = PCI_SLOT(devfn); - - if ((size == 2) && (where & 1)) - return PCIBIOS_BAD_REGISTER_NUMBER; - else if ((size == 4) && (where & 3)) - return PCIBIOS_BAD_REGISTER_NUMBER; - - if (slot >= VLYNQ_PCI_SLOTS) - return PCIBIOS_DEVICE_NOT_FOUND; - - dev = slots[slot]; - - if (!dev || (PCI_FUNC(devfn) > 0)) - return PCIBIOS_DEVICE_NOT_FOUND; - - priv = dev->priv; - - switch (where) { - case PCI_VENDOR_ID: - *val = vlynq_read(priv->config->chip, size); - break; - case PCI_DEVICE_ID: - *val = priv->config->chip & 0xffff; - case PCI_COMMAND: - *val = priv->command; - case PCI_STATUS: -/* *val = PCI_STATUS_CAP_LIST;*/ - *val = 0; - break; - case PCI_CLASS_REVISION: - *val = priv->config->class; - break; - case PCI_LATENCY_TIMER: - *val = priv->latency; - break; - case PCI_HEADER_TYPE: - *val = PCI_HEADER_TYPE_NORMAL; - break; - case PCI_CACHE_LINE_SIZE: - *val = priv->cache_line; - break; - case PCI_BASE_ADDRESS_0: - case PCI_BASE_ADDRESS_1: - case PCI_BASE_ADDRESS_2: - case PCI_BASE_ADDRESS_3: - resno = (where - PCI_BASE_ADDRESS_0) >> 2; - if (priv->sz_mask & (1 << resno)) { - priv->sz_mask &= ~(1 << resno); - *val = priv->config->rx_mapping[resno].size; - } else { - *val = vlynq_get_mapped(dev, resno); - } - break; - case PCI_BASE_ADDRESS_4: - case PCI_BASE_ADDRESS_5: - case PCI_SUBSYSTEM_VENDOR_ID: - case PCI_SUBSYSTEM_ID: - case PCI_ROM_ADDRESS: - case PCI_INTERRUPT_LINE: - case PCI_CARDBUS_CIS: - case PCI_CAPABILITY_LIST: - *val = 0; - break; - case PCI_INTERRUPT_PIN: - *val = 1; - break; - default: - printk("%s: Read of unknown register 0x%x (size %d)\n", - dev->dev.bus_id, where, size); - return PCIBIOS_BAD_REGISTER_NUMBER; - } - return PCIBIOS_SUCCESSFUL; -} - -static int vlynq_config_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val) -{ - struct vlynq_device *dev; - struct vlynq_pci_private *priv; - int resno, slot = PCI_SLOT(devfn); - - if ((size == 2) && (where & 1)) - return PCIBIOS_BAD_REGISTER_NUMBER; - else if ((size == 4) && (where & 3)) - return PCIBIOS_BAD_REGISTER_NUMBER; - - if (slot >= VLYNQ_PCI_SLOTS) - return PCIBIOS_DEVICE_NOT_FOUND; - - dev = slots[slot]; - - if (!dev || (PCI_FUNC(devfn) > 0)) - return PCIBIOS_DEVICE_NOT_FOUND; - - priv = dev->priv; - - switch (where) { - case PCI_VENDOR_ID: - case PCI_DEVICE_ID: - case PCI_STATUS: - case PCI_CLASS_REVISION: - case PCI_HEADER_TYPE: - case PCI_CACHE_LINE_SIZE: - case PCI_SUBSYSTEM_VENDOR_ID: - case PCI_SUBSYSTEM_ID: - case PCI_INTERRUPT_LINE: - case PCI_INTERRUPT_PIN: - case PCI_CARDBUS_CIS: - case PCI_CAPABILITY_LIST: - return PCIBIOS_FUNC_NOT_SUPPORTED; - case PCI_COMMAND: - priv->command = val; - case PCI_LATENCY_TIMER: - priv->latency = val; - break; - case PCI_BASE_ADDRESS_0: - case PCI_BASE_ADDRESS_1: - case PCI_BASE_ADDRESS_2: - case PCI_BASE_ADDRESS_3: - if (val == 0xffffffff) { - resno = (where - PCI_BASE_ADDRESS_0) >> 2; - priv->sz_mask |= (1 << resno); - break; - } - case PCI_BASE_ADDRESS_4: - case PCI_BASE_ADDRESS_5: - case PCI_ROM_ADDRESS: - break; - default: - printk("%s: Write to unknown register 0x%x (size %d) value=0x%x\n", - dev->dev.bus_id, where, size, val); - return PCIBIOS_BAD_REGISTER_NUMBER; - } - return PCIBIOS_SUCCESSFUL; -} - -static struct pci_ops vlynq_pci_ops = { - vlynq_config_read, - vlynq_config_write -}; - -static struct pci_controller vlynq_controller = { - .pci_ops = &vlynq_pci_ops, - .io_resource = &vlynq_io_resource, - .mem_resource = &vlynq_mem_resource, -}; - -static int vlynq_pci_probe(struct vlynq_device *dev) -{ - int result, i; - u32 chip_id, addr; - struct vlynq_pci_private *priv; - struct vlynq_mapping mapping[4] = { { 0, }, }; - struct vlynq_pci_config *config = NULL; - - result = vlynq_set_local_irq(dev, 31); - if (result) - return result; - - result = vlynq_set_remote_irq(dev, 30); - if (result) - return result; - - result = vlynq_device_enable(dev); - if (result) - return result; - - chip_id = vlynq_remote_id(dev); - for (i = 0; i < ARRAY_SIZE(known_devices); i++) - if (chip_id == known_devices[i].chip_id) - config = &known_devices[i]; - - if (!config) { - printk("vlynq-pci: skipping unknown device " - "%04x:%04x at %s\n", chip_id >> 16, - chip_id & 0xffff, dev->dev.bus_id); - result = -ENODEV; - goto fail; - } - - printk("vlynq-pci: attaching device %s at %s\n", - config->name, dev->dev.bus_id); - - priv = kmalloc(sizeof(struct vlynq_pci_private), GFP_KERNEL); - if (!priv) { - printk(KERN_ERR "%s: failed to allocate private data\n", - dev->dev.bus_id); - result = -ENOMEM; - goto fail; - } - - memset(priv, 0, sizeof(struct vlynq_pci_private)); - priv->latency = 64; - priv->cache_line = 32; - priv->config = config; - - mapping[0].offset = ARCH_PFN_OFFSET << PAGE_SHIFT; - mapping[0].size = 0x02000000; - vlynq_set_local_mapping(dev, dev->mem_start, mapping); - vlynq_set_remote_mapping(dev, 0, config->rx_mapping); - - set_irq_type(vlynq_virq_to_irq(dev, config->irq), config->irq_type); - - addr = (u32)ioremap_nocache(dev->mem_start, 0x10000); - if (!addr) { - printk(KERN_ERR "%s: failed to remap io memory\n", - dev->dev.bus_id); - result = -ENXIO; - goto fail; - } - - for (i = 0; i < config->num_regs; i++) - *(volatile u32 *)(addr + config->regs[i].offset) = - config->regs[i].value; - - dev->priv = priv; - for (i = 0; i < VLYNQ_PCI_SLOTS; i++) { - if (!slots[i]) { - slots[i] = dev; - break; - } - } - - return 0; - -fail: - vlynq_device_disable(dev); - - return result; -} - -static int vlynq_pci_remove(struct vlynq_device *dev) -{ - int i; - struct vlynq_pci_private *priv = dev->priv; - - for (i = 0; i < VLYNQ_PCI_SLOTS; i++) - if (slots[i] == dev) - slots[i] = NULL; - - vlynq_device_disable(dev); - kfree(priv); - - return 0; -} - -static struct vlynq_driver vlynq_pci = { - .name = "PCI over VLYNQ emulation", - .probe = vlynq_pci_probe, - .remove = vlynq_pci_remove, -}; - -int vlynq_pci_init(void) -{ - int res; - res = vlynq_register_driver(&vlynq_pci); - if (res) - return res; - - register_pci_controller(&vlynq_controller); - - return 0; -} - -int pcibios_map_irq(struct pci_dev *pdev, u8 slot, u8 pin) -{ - struct vlynq_device *dev; - struct vlynq_pci_private *priv; - - dev = slots[slot]; - - if (!dev) - return 0; - - priv = dev->priv; - - return vlynq_virq_to_irq(dev, priv->config->irq); -} - -/* Do platform specific device initialization at pci_enable_device() time */ -int pcibios_plat_dev_init(struct pci_dev *dev) -{ - return 0; -}