From c3585201fb25ea0fb56310c56d2a87384382cce5 Mon Sep 17 00:00:00 2001 From: ejka Date: Fri, 5 Oct 2007 17:54:36 +0000 Subject: cleanup vlynq. drop vlynq-pci git-svn-id: svn://svn.openwrt.org/openwrt/trunk@9143 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- target/linux/ar7/files/arch/mips/ar7/Makefile | 6 +- target/linux/ar7/files/arch/mips/ar7/platform.c | 2 +- target/linux/ar7/files/arch/mips/ar7/vlynq-pci.c | 436 -------------- target/linux/ar7/files/arch/mips/ar7/vlynq.c | 653 -------------------- target/linux/ar7/files/drivers/vlynq/Kconfig | 13 + target/linux/ar7/files/drivers/vlynq/Makefile | 5 + target/linux/ar7/files/drivers/vlynq/vlynq.c | 670 +++++++++++++++++++++ .../linux/ar7/files/include/asm-mips/ar7/vlynq.h | 113 ---- target/linux/ar7/files/include/linux/vlynq.h | 161 +++++ 9 files changed, 851 insertions(+), 1208 deletions(-) delete mode 100644 target/linux/ar7/files/arch/mips/ar7/vlynq-pci.c delete mode 100644 target/linux/ar7/files/arch/mips/ar7/vlynq.c create mode 100644 target/linux/ar7/files/drivers/vlynq/Kconfig create mode 100644 target/linux/ar7/files/drivers/vlynq/Makefile create mode 100644 target/linux/ar7/files/drivers/vlynq/vlynq.c delete mode 100644 target/linux/ar7/files/include/asm-mips/ar7/vlynq.h create mode 100644 target/linux/ar7/files/include/linux/vlynq.h (limited to 'target/linux/ar7/files') diff --git a/target/linux/ar7/files/arch/mips/ar7/Makefile b/target/linux/ar7/files/arch/mips/ar7/Makefile index bd1095739..7435e44b3 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 f3a9372d8..8f410babe 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 #include #include +#include #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,23) #include #endif @@ -37,7 +38,6 @@ #include #include #include -#include 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 7a640dbef..000000000 --- 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 -#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 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 4c0a86dba..000000000 --- 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 -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include - -#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); diff --git a/target/linux/ar7/files/drivers/vlynq/Kconfig b/target/linux/ar7/files/drivers/vlynq/Kconfig new file mode 100644 index 000000000..2c8ffe0d1 --- /dev/null +++ b/target/linux/ar7/files/drivers/vlynq/Kconfig @@ -0,0 +1,13 @@ +menu "TI VLYNQ" + +config VLYNQ + bool "TI VLYNQ bus support" + depends on AR7 && EXPERIMENTAL + help + Support for the TI VLYNQ bus + + The module will be called vlynq + + If unsure, say N + +endmenu diff --git a/target/linux/ar7/files/drivers/vlynq/Makefile b/target/linux/ar7/files/drivers/vlynq/Makefile new file mode 100644 index 000000000..b3f61149b --- /dev/null +++ b/target/linux/ar7/files/drivers/vlynq/Makefile @@ -0,0 +1,5 @@ +# +# Makefile for kernel vlynq drivers +# + +obj-$(CONFIG_VLYNQ) += vlynq.o diff --git a/target/linux/ar7/files/drivers/vlynq/vlynq.c b/target/linux/ar7/files/drivers/vlynq/vlynq.c new file mode 100644 index 000000000..0dd6c1830 --- /dev/null +++ b/target/linux/ar7/files/drivers/vlynq/vlynq.c @@ -0,0 +1,670 @@ +/* + * 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 +#include +#include +#include +#include +#include + +#include + +#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)) + +static int __vlynq_enable_device(struct vlynq_device *dev); + +#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); +} + +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, virq; + + 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 = dev->irq_start; i <= dev->irq_end; i++) { + virq = i - dev->irq_start; + if (virq == dev->local_irq) { + set_irq_chip_and_handler(i, &vlynq_local_chip, + handle_level_irq); + set_irq_chip_data(i, dev); + } else if (virq == dev->remote_irq) { + set_irq_chip_and_handler(i, &vlynq_remote_chip, + handle_level_irq); + set_irq_chip_data(i, dev); + } else { + set_irq_chip_and_handler(i, &vlynq_irq_chip, + handle_simple_irq); + set_irq_chip_data(i, dev); + vlynq_reg_write(dev->remote->int_device[virq >> 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_device_release(struct device *dev) +{ + struct vlynq_device *vdev = to_vlynq_device(dev); + kfree(vdev); +} + +static int vlynq_device_match(struct device *dev, + struct device_driver *drv) +{ + struct vlynq_device *vdev = to_vlynq_device(dev); + struct vlynq_driver *vdrv = to_vlynq_driver(drv); + struct plat_vlynq_ops *ops = dev->platform_data; + struct vlynq_device_id *ids = vdrv->id_table; + u32 id = 0; + int result; + + while (ids->id) { + vdev->divisor = ids->divisor; + result = __vlynq_enable_device(vdev); + if (result == 0) { + id = vlynq_reg_read(vdev->remote->chip); + ops->off(vdev); + if (ids->id == id) { + vlynq_set_drvdata(vdev, ids); + return 1; + } + } + ids++; + } + return 0; +} + +static int vlynq_device_probe(struct device *dev) +{ + struct vlynq_device *vdev = to_vlynq_device(dev); + struct vlynq_driver *drv = to_vlynq_driver(dev->driver); + struct vlynq_device_id *id = vlynq_get_drvdata(vdev); + int result = -ENODEV; + + get_device(dev); + if (drv && drv->probe) + result = drv->probe(vdev, id); + if (result) + put_device(dev); + return result; +} + +static int vlynq_device_remove(struct device *dev) +{ + struct vlynq_driver *drv = to_vlynq_driver(dev->driver); + if (drv && drv->remove) + drv->remove(to_vlynq_device(dev)); + put_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); + +static int __vlynq_enable_device(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: + /* Only try locally supplied clock, others cause problems */ + 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); + dev->divisor = i; + return 0; + } + } + 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 0; + } + 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 0; + } + 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 0; + } + break; + } + + ops->off(dev); + return -ENODEV; +} + +int vlynq_enable_device(struct vlynq_device *dev) +{ + struct plat_vlynq_ops *ops = dev->dev.platform_data; + int result = -ENODEV; + + result = __vlynq_enable_device(dev); + if (result) + return result; + + result = vlynq_setup_irq(dev); + if (result) + ops->off(dev); + + dev->enabled = !result; + return result; +} +EXPORT_SYMBOL(vlynq_enable_device); + + +void vlynq_disable_device(struct vlynq_device *dev) +{ + struct plat_vlynq_ops *ops = dev->dev.platform_data; + + dev->enabled = 0; + free_irq(dev->irq, dev); + ops->off(dev); +} +EXPORT_SYMBOL(vlynq_disable_device); + +int vlynq_set_local_mapping(struct vlynq_device *dev, u32 tx_offset, + struct vlynq_mapping *mapping) +{ + int i; + + if (!dev->enabled) + return -ENXIO; + + 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); + } + return 0; +} +EXPORT_SYMBOL(vlynq_set_local_mapping); + +int vlynq_set_remote_mapping(struct vlynq_device *dev, u32 tx_offset, + struct vlynq_mapping *mapping) +{ + int i; + + if (!dev->enabled) + return -ENXIO; + + 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); + } + return 0; +} +EXPORT_SYMBOL(vlynq_set_remote_mapping); + +int vlynq_set_local_irq(struct vlynq_device *dev, int virq) +{ + int irq = dev->irq_start + virq; + if (dev->enabled) + return -EBUSY; + + if ((irq < dev->irq_start) || (irq > dev->irq_end)) + return -EINVAL; + + if (virq == dev->remote_irq) + return -EINVAL; + + dev->local_irq = virq; + + return 0; +} +EXPORT_SYMBOL(vlynq_set_local_irq); + +int vlynq_set_remote_irq(struct vlynq_device *dev, int virq) +{ + int irq = dev->irq_start + virq; + if (dev->enabled) + return -EBUSY; + + if ((irq < dev->irq_start) || (irq > dev->irq_end)) + return -EINVAL; + + if (virq == dev->local_irq) + return -EINVAL; + + dev->remote_irq = virq; + + return 0; +} +EXPORT_SYMBOL(vlynq_set_remote_irq); + +static int vlynq_probe(struct platform_device *pdev) +{ + struct vlynq_device *dev; + struct resource *regs_res, *mem_res, *irq_res; + int len, result; + + 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 *)((void *)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 = dev->irq_end - dev->irq_start; + dev->remote_irq = dev->local_irq - 1; + + 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 = __devexit_p(vlynq_remove), +}; + +struct bus_type vlynq_bus_type = { + .name = "vlynq", + .match = vlynq_device_match, + .probe = vlynq_device_probe, + .remove = vlynq_device_remove, +}; +EXPORT_SYMBOL(vlynq_bus_type); + +static int __devinit 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; + + return 0; + +fail_platform: + bus_unregister(&vlynq_bus_type); +fail_bus: + return res; +} + +static void __devexit vlynq_exit(void) +{ + platform_driver_unregister(&vlynq_driver); + bus_unregister(&vlynq_bus_type); +} + +module_init(vlynq_init); +module_exit(vlynq_exit); diff --git a/target/linux/ar7/files/include/asm-mips/ar7/vlynq.h b/target/linux/ar7/files/include/asm-mips/ar7/vlynq.h deleted file mode 100644 index e2cfe8770..000000000 --- a/target/linux/ar7/files/include/asm-mips/ar7/vlynq.h +++ /dev/null @@ -1,113 +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 - */ - -#ifndef __VLYNQ_H__ -#define __VLYNQ_H__ - -#include -#include -#include - -struct vlynq_mapping { - u32 size; - u32 offset; -} __attribute__ ((packed)); - -struct vlynq_device_id { - u32 id; -}; - -enum vlynq_divisor { - vlynq_div_auto = 0, - vlynq_ldiv1, - vlynq_ldiv2, - vlynq_ldiv3, - vlynq_ldiv4, - vlynq_ldiv5, - vlynq_ldiv6, - vlynq_ldiv7, - vlynq_ldiv8, - vlynq_rdiv1, - vlynq_rdiv2, - vlynq_rdiv3, - vlynq_rdiv4, - vlynq_rdiv5, - vlynq_rdiv6, - vlynq_rdiv7, - vlynq_rdiv8, - vlynq_div_external -}; - -struct vlynq_regs; -struct vlynq_device { - u32 id; - int irq; - int local_irq; - int remote_irq; - enum vlynq_divisor divisor; - u32 regs_start, regs_end; - u32 mem_start, mem_end; - u32 irq_start, irq_end; - void *priv; - struct vlynq_regs *local; - struct vlynq_regs *remote; - struct device dev; -}; - -struct vlynq_driver { - char *name; - int (*probe)(struct vlynq_device *dev); - int (*remove)(struct vlynq_device *dev); - struct device_driver driver; -}; - -#define to_vlynq_driver(drv) container_of(drv, struct vlynq_driver, driver) - -struct plat_vlynq_ops { - int (*on)(struct vlynq_device *dev); - void (*off)(struct vlynq_device *dev); -}; - -#define to_vlynq_device(device) container_of(device, struct vlynq_device, dev) - -extern struct bus_type vlynq_bus_type; - -extern int __vlynq_register_driver(struct vlynq_driver *driver, - struct module *owner); - -static inline int vlynq_register_driver(struct vlynq_driver *driver) -{ - return __vlynq_register_driver(driver, THIS_MODULE); -} - -extern void vlynq_unregister_driver(struct vlynq_driver *driver); -extern int vlynq_device_enable(struct vlynq_device *dev); -extern void vlynq_device_disable(struct vlynq_device *dev); -extern u32 vlynq_remote_id(struct vlynq_device *dev); -extern void vlynq_set_local_mapping(struct vlynq_device *dev, - u32 tx_offset, - struct vlynq_mapping *mapping); -extern void vlynq_set_remote_mapping(struct vlynq_device *dev, - u32 tx_offset, - struct vlynq_mapping *mapping); -extern int vlynq_virq_to_irq(struct vlynq_device *dev, int virq); -extern int vlynq_irq_to_virq(struct vlynq_device *dev, int irq); -extern int vlynq_set_local_irq(struct vlynq_device *dev, int virq); -extern int vlynq_set_remote_irq(struct vlynq_device *dev, int virq); - -#endif /* __VLYNQ_H__ */ diff --git a/target/linux/ar7/files/include/linux/vlynq.h b/target/linux/ar7/files/include/linux/vlynq.h new file mode 100644 index 000000000..b3f24741b --- /dev/null +++ b/target/linux/ar7/files/include/linux/vlynq.h @@ -0,0 +1,161 @@ +/* + * 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 + */ + +#ifndef __VLYNQ_H__ +#define __VLYNQ_H__ + +#include +#include +#include + +#define VLYNQ_NUM_IRQS 32 + +struct vlynq_mapping { + u32 size; + u32 offset; +}; + +enum vlynq_divisor { + vlynq_div_auto = 0, + vlynq_ldiv1, + vlynq_ldiv2, + vlynq_ldiv3, + vlynq_ldiv4, + vlynq_ldiv5, + vlynq_ldiv6, + vlynq_ldiv7, + vlynq_ldiv8, + vlynq_rdiv1, + vlynq_rdiv2, + vlynq_rdiv3, + vlynq_rdiv4, + vlynq_rdiv5, + vlynq_rdiv6, + vlynq_rdiv7, + vlynq_rdiv8, + vlynq_div_external +}; + +struct vlynq_device_id { + u32 id; + enum vlynq_divisor divisor; + unsigned long driver_data; +}; + +struct vlynq_regs; +struct vlynq_device { + u32 id; + int local_irq; + int remote_irq; + enum vlynq_divisor divisor; + u32 regs_start, regs_end; + u32 mem_start, mem_end; + u32 irq_start, irq_end; + int irq; + int enabled; + struct vlynq_regs *local; + struct vlynq_regs *remote; + struct device dev; +}; + +struct vlynq_driver { + char *name; + struct vlynq_device_id *id_table; + int (*probe)(struct vlynq_device *dev, struct vlynq_device_id *id); + void (*remove)(struct vlynq_device *dev); + struct device_driver driver; +}; + +struct plat_vlynq_ops { + int (*on)(struct vlynq_device *dev); + void (*off)(struct vlynq_device *dev); +}; + +static inline struct vlynq_driver *to_vlynq_driver(struct device_driver *drv) +{ + return container_of(drv, struct vlynq_driver, driver); +} + +static inline struct vlynq_device *to_vlynq_device(struct device *device) +{ + return container_of(device, struct vlynq_device, dev); +} + +extern struct bus_type vlynq_bus_type; + +extern int __vlynq_register_driver(struct vlynq_driver *driver, + struct module *owner); + +static inline int vlynq_register_driver(struct vlynq_driver *driver) +{ + return __vlynq_register_driver(driver, THIS_MODULE); +} + +static inline void *vlynq_get_drvdata(struct vlynq_device *dev) +{ + return dev_get_drvdata(&dev->dev); +} + +static inline void vlynq_set_drvdata(struct vlynq_device *dev, void *data) +{ + dev_set_drvdata(&dev->dev, data); +} + +static inline u32 vlynq_mem_start(struct vlynq_device *dev) +{ + return dev->mem_start; +} + +static inline u32 vlynq_mem_end(struct vlynq_device *dev) +{ + return dev->mem_end; +} + +static inline u32 vlynq_mem_len(struct vlynq_device *dev) +{ + return dev->mem_end - dev->mem_start + 1; +} + +static inline int vlynq_virq_to_irq(struct vlynq_device *dev, int virq) +{ + int irq = dev->irq_start + virq; + if ((irq < dev->irq_start) || (irq > dev->irq_end)) + return -EINVAL; + + return irq; +} + +static inline int vlynq_irq_to_virq(struct vlynq_device *dev, int irq) +{ + if ((irq < dev->irq_start) || (irq > dev->irq_end)) + return -EINVAL; + + return irq - dev->irq_start; +} + +extern void vlynq_unregister_driver(struct vlynq_driver *driver); +extern int vlynq_enable_device(struct vlynq_device *dev); +extern void vlynq_disable_device(struct vlynq_device *dev); +extern int vlynq_set_local_mapping(struct vlynq_device *dev, u32 tx_offset, + struct vlynq_mapping *mapping); +extern int vlynq_set_remote_mapping(struct vlynq_device *dev, u32 tx_offset, + struct vlynq_mapping *mapping); +extern int vlynq_set_local_irq(struct vlynq_device *dev, int virq); +extern int vlynq_set_remote_irq(struct vlynq_device *dev, int virq); + +#endif /* __VLYNQ_H__ */ -- cgit v1.2.3