diff options
Diffstat (limited to 'target/linux/ar7/files/arch')
| -rw-r--r-- | target/linux/ar7/files/arch/mips/ar7/Makefile | 6 | ||||
| -rw-r--r-- | target/linux/ar7/files/arch/mips/ar7/platform.c | 2 | ||||
| -rw-r--r-- | target/linux/ar7/files/arch/mips/ar7/vlynq-pci.c | 436 | ||||
| -rw-r--r-- | target/linux/ar7/files/arch/mips/ar7/vlynq.c | 653 |
4 files changed, 2 insertions, 1095 deletions
diff --git a/target/linux/ar7/files/arch/mips/ar7/Makefile b/target/linux/ar7/files/arch/mips/ar7/Makefile index bd1095739c..7435e44b39 100644 --- a/target/linux/ar7/files/arch/mips/ar7/Makefile +++ b/target/linux/ar7/files/arch/mips/ar7/Makefile @@ -7,8 +7,4 @@ obj-y := \ time.o \ platform.o \ gpio.o \ - clock.o \ - vlynq.o - -obj-$(CONFIG_PCI) += \ - vlynq-pci.o + clock.o diff --git a/target/linux/ar7/files/arch/mips/ar7/platform.c b/target/linux/ar7/files/arch/mips/ar7/platform.c index f3a9372d88..8f410babe7 100644 --- a/target/linux/ar7/files/arch/mips/ar7/platform.c +++ b/target/linux/ar7/files/arch/mips/ar7/platform.c @@ -29,6 +29,7 @@ #include <linux/ioport.h> #include <linux/io.h> #include <linux/version.h> +#include <linux/vlynq.h> #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,23) #include <linux/leds.h> #endif @@ -37,7 +38,6 @@ #include <asm/ar7/ar7.h> #include <asm/ar7/gpio.h> #include <asm/ar7/prom.h> -#include <asm/ar7/vlynq.h> struct plat_vlynq_data { struct plat_vlynq_ops ops; diff --git a/target/linux/ar7/files/arch/mips/ar7/vlynq-pci.c b/target/linux/ar7/files/arch/mips/ar7/vlynq-pci.c deleted file mode 100644 index 7a640dbef7..0000000000 --- a/target/linux/ar7/files/arch/mips/ar7/vlynq-pci.c +++ /dev/null @@ -1,436 +0,0 @@ -/* - * 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 <linux/types.h> -#include <linux/pci.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/irq.h> -#include <asm/ar7/vlynq.h> - -#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 TNETW1130", - .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 - PHYS_OFFSET) - }, - { - .offset = 0x794, - .value = (0xd0000000 - PHYS_OFFSET) - }, - { .offset = 0x740, .value = 0 }, - { .offset = 0x744, .value = 0x00010000 }, - { .offset = 0x764, .value = 0x00010000 }, - }, - }, - { - .chip_id = 0x00000029, .name = "TI TNETW1350", - .rx_mapping = { - { .size = 0x100000, .offset = 0x00300000 }, - { .size = 0x80000, .offset = 0x00000000 }, - { .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 = (0x60000000 - PHYS_OFFSET) - }, - { - .offset = 0x794, - .value = (0x60000000 - PHYS_OFFSET) - }, - { .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(KERN_NOTICE "%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(KERN_NOTICE "%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; - - dev->divisor = vlynq_div_auto; - 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(KERN_DEBUG "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(KERN_NOTICE "vlynq-pci: attaching device %s at %s\n", - config->name, dev->dev.bus_id); - - priv = kzalloc(sizeof(*priv), GFP_KERNEL); - if (!priv) { - printk(KERN_ERR "%s: failed to allocate private data\n", - dev->dev.bus_id); - result = -ENOMEM; - goto fail; - } - - 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++) - iowrite32(config->regs[i].value, - (u32 *)(addr + config->regs[i].offset)); - - 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; -} diff --git a/target/linux/ar7/files/arch/mips/ar7/vlynq.c b/target/linux/ar7/files/arch/mips/ar7/vlynq.c deleted file mode 100644 index 4c0a86dbaf..0000000000 --- a/target/linux/ar7/files/arch/mips/ar7/vlynq.c +++ /dev/null @@ -1,653 +0,0 @@ -/* - * 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 <linux/init.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/device.h> -#include <linux/errno.h> -#include <linux/platform_device.h> -#include <linux/interrupt.h> -#include <linux/device.h> -#include <linux/io.h> - -#include <asm/ar7/vlynq.h> - -#define PER_DEVICE_IRQS 32 - -#define VLYNQ_CTRL_PM_ENABLE 0x80000000 -#define VLYNQ_CTRL_CLOCK_INT 0x00008000 -#define VLYNQ_CTRL_CLOCK_DIV(x) (((x) & 7) << 16) -#define VLYNQ_CTRL_INT_LOCAL 0x00004000 -#define VLYNQ_CTRL_INT_ENABLE 0x00002000 -#define VLYNQ_CTRL_INT_VECTOR(x) (((x) & 0x1f) << 8) -#define VLYNQ_CTRL_INT2CFG 0x00000080 -#define VLYNQ_CTRL_RESET 0x00000001 - -#define VLYNQ_INT_OFFSET 0x00000014 -#define VLYNQ_REMOTE_OFFSET 0x00000080 - -#define VLYNQ_STATUS_LINK 0x00000001 -#define VLYNQ_STATUS_LERROR 0x00000080 -#define VLYNQ_STATUS_RERROR 0x00000100 - -#define VINT_ENABLE 0x00000100 -#define VINT_TYPE_EDGE 0x00000080 -#define VINT_LEVEL_LOW 0x00000040 -#define VINT_VECTOR(x) ((x) & 0x1f) -#define VINT_OFFSET(irq) (8 * ((irq) % 4)) - -#define VLYNQ_AUTONEGO_V2 0x00010000 - -struct vlynq_regs { - u32 revision; - u32 control; - u32 status; - u32 int_prio; - u32 int_status; - u32 int_pending; - u32 int_ptr; - u32 tx_offset; - struct vlynq_mapping rx_mapping[4]; - u32 chip; - u32 autonego; - u32 unused[6]; - u32 int_device[8]; -} __attribute__ ((packed)); - -#define vlynq_reg_read(reg) readl(&(reg)) -#define vlynq_reg_write(reg, val) writel(val, &(reg)) - -#ifdef VLYNQ_DEBUG -static void vlynq_dump_regs(struct vlynq_device *dev) -{ - int i; - printk(KERN_DEBUG "VLYNQ local=%p remote=%p\n", - dev->local, dev->remote); - for (i = 0; i < 32; i++) { - printk(KERN_DEBUG "VLYNQ: local %d: %08x\n", - i + 1, ((u32 *)dev->local)[i]); - printk(KERN_DEBUG "VLYNQ: remote %d: %08x\n", - i + 1, ((u32 *)dev->remote)[i]); - } -} - -static void vlynq_dump_mem(u32 *base, int count) -{ - int i; - for (i = 0; i < (count + 3) / 4; i++) { - if (i % 4 == 0) printk(KERN_DEBUG "\nMEM[0x%04x]:", i * 4); - printk(KERN_DEBUG " 0x%08x", *(base + i)); - } - printk(KERN_DEBUG "\n"); -} -#endif - -int vlynq_linked(struct vlynq_device *dev) -{ - int i; - - for (i = 0; i < 100; i++) - if (vlynq_reg_read(dev->local->status) & VLYNQ_STATUS_LINK) - return 1; - else - cpu_relax(); - - return 0; -} - -static void vlynq_irq_unmask(unsigned int irq) -{ - u32 val; - struct vlynq_device *dev = get_irq_chip_data(irq); - int virq; - - BUG_ON(!dev); - virq = irq - dev->irq_start; - val = vlynq_reg_read(dev->remote->int_device[virq >> 2]); - val |= (VINT_ENABLE | virq) << VINT_OFFSET(virq); - vlynq_reg_write(dev->remote->int_device[virq >> 2], val); -} - -static void vlynq_irq_mask(unsigned int irq) -{ - u32 val; - struct vlynq_device *dev = get_irq_chip_data(irq); - int virq; - - BUG_ON(!dev); - virq = irq - dev->irq_start; - val = vlynq_reg_read(dev->remote->int_device[virq >> 2]); - val &= ~(VINT_ENABLE << VINT_OFFSET(virq)); - vlynq_reg_write(dev->remote->int_device[virq >> 2], val); -} - -static int vlynq_irq_type(unsigned int irq, unsigned int flow_type) -{ - u32 val; - struct vlynq_device *dev = get_irq_chip_data(irq); - int virq; - - BUG_ON(!dev); - virq = irq - dev->irq_start; - val = vlynq_reg_read(dev->remote->int_device[virq >> 2]); - switch (flow_type & IRQ_TYPE_SENSE_MASK) { - case IRQ_TYPE_EDGE_RISING: - case IRQ_TYPE_EDGE_FALLING: - case IRQ_TYPE_EDGE_BOTH: - val |= VINT_TYPE_EDGE << VINT_OFFSET(virq); - val &= ~(VINT_LEVEL_LOW << VINT_OFFSET(virq)); - break; - case IRQ_TYPE_LEVEL_HIGH: - val &= ~(VINT_TYPE_EDGE << VINT_OFFSET(virq)); - val &= ~(VINT_LEVEL_LOW << VINT_OFFSET(virq)); - break; - case IRQ_TYPE_LEVEL_LOW: - val &= ~(VINT_TYPE_EDGE << VINT_OFFSET(virq)); - val |= VINT_LEVEL_LOW << VINT_OFFSET(virq); - break; - default: - return -EINVAL; - } - vlynq_reg_write(dev->remote->int_device[virq >> 2], val); - return 0; -} - -static void vlynq_local_ack(unsigned int irq) -{ - struct vlynq_device *dev = get_irq_chip_data(irq); - u32 status = vlynq_reg_read(dev->local->status); - if (printk_ratelimit()) - printk(KERN_DEBUG "%s: local status: 0x%08x\n", - dev->dev.bus_id, status); - vlynq_reg_write(dev->local->status, status); -} - -static void vlynq_remote_ack(unsigned int irq) -{ - struct vlynq_device *dev = get_irq_chip_data(irq); - u32 status = vlynq_reg_read(dev->remote->status); - if (printk_ratelimit()) - printk(KERN_DEBUG "%s: remote status: 0x%08x\n", - dev->dev.bus_id, status); - vlynq_reg_write(dev->remote->status, status); -} - -#warning FIXME: process one irq per call -static irqreturn_t vlynq_irq(int irq, void *dev_id) -{ - struct vlynq_device *dev = dev_id; - u32 status; - int virq = 0; - - status = vlynq_reg_read(dev->local->int_status); - vlynq_reg_write(dev->local->int_status, status); - - if (unlikely(!status)) - spurious_interrupt(); - - while (status) { - if (status & 1) - do_IRQ(dev->irq_start + virq); - status >>= 1; - virq++; - } - - return IRQ_HANDLED; -} - -static struct irq_chip vlynq_irq_chip = { - .name = "vlynq", - .unmask = vlynq_irq_unmask, - .mask = vlynq_irq_mask, - .set_type = vlynq_irq_type, -}; - -static struct irq_chip vlynq_local_chip = { - .name = "vlynq local error", - .unmask = vlynq_irq_unmask, - .mask = vlynq_irq_mask, - .ack = vlynq_local_ack, -}; - -static struct irq_chip vlynq_remote_chip = { - .name = "vlynq local error", - .unmask = vlynq_irq_unmask, - .mask = vlynq_irq_mask, - .ack = vlynq_remote_ack, -}; - -static int vlynq_setup_irq(struct vlynq_device *dev) -{ - u32 val; - int i; - - if (dev->local_irq == dev->remote_irq) { - printk(KERN_ERR - "%s: local vlynq irq should be different from remote\n", - dev->dev.bus_id); - return -EINVAL; - } - - /* Clear local and remote error bits */ - vlynq_reg_write(dev->local->status, vlynq_reg_read(dev->local->status)); - vlynq_reg_write(dev->remote->status, - vlynq_reg_read(dev->remote->status)); - - /* Now setup interrupts */ - val = VLYNQ_CTRL_INT_VECTOR(dev->local_irq); - val |= VLYNQ_CTRL_INT_ENABLE | VLYNQ_CTRL_INT_LOCAL | - VLYNQ_CTRL_INT2CFG; - val |= vlynq_reg_read(dev->local->control); - vlynq_reg_write(dev->local->int_ptr, VLYNQ_INT_OFFSET); - vlynq_reg_write(dev->local->control, val); - - val = VLYNQ_CTRL_INT_VECTOR(dev->remote_irq); - val |= VLYNQ_CTRL_INT_ENABLE; - val |= vlynq_reg_read(dev->remote->control); - vlynq_reg_write(dev->remote->int_ptr, VLYNQ_INT_OFFSET); - vlynq_reg_write(dev->remote->control, val); - - for (i = 0; i < PER_DEVICE_IRQS; i++) { - if (i == dev->local_irq) { - set_irq_chip_and_handler(dev->irq_start + i, - &vlynq_local_chip, - handle_level_irq); - set_irq_chip_data(dev->irq_start + i, dev); - } else if (i == dev->remote_irq) { - set_irq_chip_and_handler(dev->irq_start + i, - &vlynq_remote_chip, - handle_level_irq); - set_irq_chip_data(dev->irq_start + i, dev); - } else { - set_irq_chip_and_handler(dev->irq_start + i, - &vlynq_irq_chip, - handle_simple_irq); - set_irq_chip_data(dev->irq_start + i, dev); - vlynq_reg_write(dev->remote->int_device[i >> 2], 0); - } - } - - if (request_irq(dev->irq, vlynq_irq, IRQF_SHARED, "vlynq", dev)) { - printk(KERN_ERR "%s: request_irq failed\n", dev->dev.bus_id); - return -EAGAIN; - } - - return 0; -} - -static void vlynq_free_irq(struct vlynq_device *dev) -{ - free_irq(dev->irq, dev); -} - -static void vlynq_device_release(struct device *dev) -{ - struct vlynq_device *vdev = to_vlynq_device(dev); - kfree(vdev); -} - -static int vlynq_device_probe(struct device *dev) -{ - struct vlynq_driver *drv = to_vlynq_driver(dev->driver); - if (drv->probe) - return drv->probe(to_vlynq_device(dev)); - return 0; -} - -static int vlynq_device_remove(struct device *dev) -{ - struct vlynq_driver *drv = to_vlynq_driver(dev->driver); - if (drv->remove) - return drv->remove(to_vlynq_device(dev)); - return 0; -} - -int __vlynq_register_driver(struct vlynq_driver *driver, struct module *owner) -{ - driver->driver.name = driver->name; - driver->driver.bus = &vlynq_bus_type; - return driver_register(&driver->driver); -} -EXPORT_SYMBOL(__vlynq_register_driver); - -void vlynq_unregister_driver(struct vlynq_driver *driver) -{ - driver_unregister(&driver->driver); -} -EXPORT_SYMBOL(vlynq_unregister_driver); - -int vlynq_device_enable(struct vlynq_device *dev) -{ - int i, result; - struct plat_vlynq_ops *ops = dev->dev.platform_data; - - result = ops->on(dev); - if (result) - return result; - - switch (dev->divisor) { - case vlynq_div_auto: - /* First try locally supplied clock */ - vlynq_reg_write(dev->remote->control, 0); - for (i = vlynq_ldiv1; i <= vlynq_ldiv8; i++) { - vlynq_reg_write(dev->local->control, - VLYNQ_CTRL_CLOCK_INT | - VLYNQ_CTRL_CLOCK_DIV(i - vlynq_ldiv1)); - if (vlynq_linked(dev)) { - printk(KERN_DEBUG - "%s: using local clock divisor %d\n", - dev->dev.bus_id, i - vlynq_ldiv1 + 1); - return vlynq_setup_irq(dev); - } - } - /* Then remotely supplied clock */ - vlynq_reg_write(dev->local->control, 0); - for (i = vlynq_rdiv1; i <= vlynq_rdiv8; i++) { - vlynq_reg_write(dev->remote->control, - VLYNQ_CTRL_CLOCK_INT | - VLYNQ_CTRL_CLOCK_DIV(i - vlynq_rdiv1)); - if (vlynq_linked(dev)) { - printk(KERN_DEBUG - "%s: using remote clock divisor %d\n", - dev->dev.bus_id, i - vlynq_rdiv1 + 1); - return vlynq_setup_irq(dev); - } - } - /* At last, externally supplied clock */ - vlynq_reg_write(dev->remote->control, 0); - if (vlynq_linked(dev)) { - printk(KERN_DEBUG "%s: using external clock\n", - dev->dev.bus_id); - return vlynq_setup_irq(dev); - } - break; - case vlynq_ldiv1: case vlynq_ldiv2: case vlynq_ldiv3: case vlynq_ldiv4: - case vlynq_ldiv5: case vlynq_ldiv6: case vlynq_ldiv7: case vlynq_ldiv8: - vlynq_reg_write(dev->remote->control, 0); - vlynq_reg_write(dev->local->control, - VLYNQ_CTRL_CLOCK_INT | - VLYNQ_CTRL_CLOCK_DIV(dev->divisor - - vlynq_ldiv1)); - if (vlynq_linked(dev)) { - printk(KERN_DEBUG - "%s: using local clock divisor %d\n", - dev->dev.bus_id, dev->divisor - vlynq_ldiv1 + 1); - return vlynq_setup_irq(dev); - } - break; - case vlynq_rdiv1: case vlynq_rdiv2: case vlynq_rdiv3: case vlynq_rdiv4: - case vlynq_rdiv5: case vlynq_rdiv6: case vlynq_rdiv7: case vlynq_rdiv8: - vlynq_reg_write(dev->local->control, 0); - vlynq_reg_write(dev->remote->control, - VLYNQ_CTRL_CLOCK_INT | - VLYNQ_CTRL_CLOCK_DIV(dev->divisor - - vlynq_rdiv1)); - if (vlynq_linked(dev)) { - printk(KERN_DEBUG - "%s: using remote clock divisor %d\n", - dev->dev.bus_id, dev->divisor - vlynq_rdiv1 + 1); - return vlynq_setup_irq(dev); - } - break; - case vlynq_div_external: - vlynq_reg_write(dev->local->control, 0); - vlynq_reg_write(dev->remote->control, 0); - if (vlynq_linked(dev)) { - printk(KERN_DEBUG "%s: using external clock\n", - dev->dev.bus_id); - return vlynq_setup_irq(dev); - } - break; - } - - return -ENODEV; -} - -void vlynq_device_disable(struct vlynq_device *dev) -{ - struct plat_vlynq_ops *ops = dev->dev.platform_data; - - vlynq_free_irq(dev); - ops->off(dev); -} - -u32 vlynq_remote_id(struct vlynq_device *dev) -{ - return vlynq_reg_read(dev->remote->chip); -} - -void vlynq_set_local_mapping(struct vlynq_device *dev, u32 tx_offset, - struct vlynq_mapping *mapping) -{ - int i; - - vlynq_reg_write(dev->local->tx_offset, tx_offset); - for (i = 0; i < 4; i++) { - vlynq_reg_write(dev->local->rx_mapping[i].offset, - mapping[i].offset); - vlynq_reg_write(dev->local->rx_mapping[i].size, - mapping[i].size); - } -} - -void vlynq_set_remote_mapping(struct vlynq_device *dev, u32 tx_offset, - struct vlynq_mapping *mapping) -{ - int i; - - vlynq_reg_write(dev->remote->tx_offset, tx_offset); - for (i = 0; i < 4; i++) { - vlynq_reg_write(dev->remote->rx_mapping[i].offset, - mapping[i].offset); - vlynq_reg_write(dev->remote->rx_mapping[i].size, - mapping[i].size); - } -} - -int vlynq_virq_to_irq(struct vlynq_device *dev, int virq) -{ - if ((virq < 0) || (virq >= PER_DEVICE_IRQS)) - return -EINVAL; - - return dev->irq_start + virq; -} - -int vlynq_irq_to_virq(struct vlynq_device *dev, int irq) -{ - if ((irq < dev->irq_start) || (irq >= dev->irq_start + PER_DEVICE_IRQS)) - return -EINVAL; - - return irq - dev->irq_start; -} - -int vlynq_set_local_irq(struct vlynq_device *dev, int virq) -{ - if ((virq < 0) || (virq >= PER_DEVICE_IRQS)) - return -EINVAL; - - if (virq == dev->remote_irq) - return -EINVAL; - - dev->local_irq = virq; - - return 0; -} - -int vlynq_set_remote_irq(struct vlynq_device *dev, int virq) -{ - if ((virq < 0) || (virq >= PER_DEVICE_IRQS)) - return -EINVAL; - - if (virq == dev->local_irq) - return -EINVAL; - - dev->remote_irq = virq; - - return 0; -} - -static int vlynq_probe(struct platform_device *pdev) -{ - struct vlynq_device *dev; - struct resource *regs_res, *mem_res, *irq_res; - int len, result; - - if (strcmp(pdev->name, "vlynq")) - return -ENODEV; - - regs_res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs"); - if (!regs_res) - return -ENODEV; - - mem_res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mem"); - if (!mem_res) - return -ENODEV; - - irq_res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "devirq"); - if (!irq_res) - return -ENODEV; - - dev = kzalloc(sizeof(*dev), GFP_KERNEL); - if (!dev) { - printk(KERN_ERR - "vlynq: failed to allocate device structure\n"); - return -ENOMEM; - } - - dev->id = pdev->id; - dev->dev.bus = &vlynq_bus_type; - dev->dev.parent = &pdev->dev; - snprintf(dev->dev.bus_id, BUS_ID_SIZE, "vlynq%d", dev->id); - dev->dev.bus_id[BUS_ID_SIZE - 1] = 0; - dev->dev.platform_data = pdev->dev.platform_data; - dev->dev.release = vlynq_device_release; - - dev->regs_start = regs_res->start; - dev->regs_end = regs_res->end; - dev->mem_start = mem_res->start; - dev->mem_end = mem_res->end; - - len = regs_res->end - regs_res->start; - if (!request_mem_region(regs_res->start, len, dev->dev.bus_id)) { - printk(KERN_ERR "%s: Can't request vlynq registers\n", - dev->dev.bus_id); - result = -ENXIO; - goto fail_request; - } - - dev->local = ioremap(regs_res->start, len); - if (!dev->local) { - printk(KERN_ERR "%s: Can't remap vlynq registers\n", - dev->dev.bus_id); - result = -ENXIO; - goto fail_remap; - } - - dev->remote = (struct vlynq_regs *)((u32)dev->local + - VLYNQ_REMOTE_OFFSET); - - dev->irq = platform_get_irq_byname(pdev, "irq"); - dev->irq_start = irq_res->start; - dev->irq_end = irq_res->end; - dev->local_irq = 31; - dev->remote_irq = 30; - - if (device_register(&dev->dev)) - goto fail_register; - platform_set_drvdata(pdev, dev); - - printk(KERN_INFO "%s: regs 0x%p, irq %d, mem 0x%p\n", - dev->dev.bus_id, (void *)dev->regs_start, dev->irq, - (void *)dev->mem_start); - - return 0; - -fail_register: - iounmap(dev->local); -fail_remap: -fail_request: - release_mem_region(regs_res->start, len); - kfree(dev); - return result; -} - -static int vlynq_remove(struct platform_device *pdev) -{ - struct vlynq_device *dev = platform_get_drvdata(pdev); - - device_unregister(&dev->dev); - iounmap(dev->local); - release_mem_region(dev->regs_start, dev->regs_end - dev->regs_start); - - kfree(dev); - - return 0; -} - -static struct platform_driver vlynq_driver = { - .driver.name = "vlynq", - .probe = vlynq_probe, - .remove = vlynq_remove, -}; - -struct bus_type vlynq_bus_type = { - .name = "vlynq", - .probe = vlynq_device_probe, - .remove = vlynq_device_remove, -}; -EXPORT_SYMBOL(vlynq_bus_type); - -#ifdef CONFIG_PCI -extern void vlynq_pci_init(void); -#endif -static int __init vlynq_init(void) -{ - int res = 0; - - res = bus_register(&vlynq_bus_type); - if (res) - goto fail_bus; - - res = platform_driver_register(&vlynq_driver); - if (res) - goto fail_platform; - -#ifdef CONFIG_PCI - vlynq_pci_init(); -#endif - - return 0; - -fail_platform: - bus_unregister(&vlynq_bus_type); -fail_bus: - return res; -} - -/* Add this back when vlynq-pci crap is gone */ -#if 0 -static void __devexit vlynq_exit(void) -{ - platform_driver_unregister(&vlynq_driver); - bus_unregister(&vlynq_bus_type); -} -#endif - -subsys_initcall(vlynq_init); |