diff options
Diffstat (limited to 'target/linux/adm5120/files-3.8/arch/mips/pci/pci-adm5120.c')
| -rw-r--r-- | target/linux/adm5120/files-3.8/arch/mips/pci/pci-adm5120.c | 277 |
1 files changed, 0 insertions, 277 deletions
diff --git a/target/linux/adm5120/files-3.8/arch/mips/pci/pci-adm5120.c b/target/linux/adm5120/files-3.8/arch/mips/pci/pci-adm5120.c deleted file mode 100644 index f8d359806a..0000000000 --- a/target/linux/adm5120/files-3.8/arch/mips/pci/pci-adm5120.c +++ /dev/null @@ -1,277 +0,0 @@ -/* - * ADM5120 PCI Host Controller driver - * - * Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org> - * - * This code was based on the ADM5120 specific port of the Linux 2.6.10 kernel - * done by Jeroen Vreeken - * Copyright (C) 2005 Jeroen Vreeken (pe1rxq@amsat.org) - * - * Jeroen's code was based on the Linux 2.4.xx source codes found in various - * tarballs released by Edimax for it's ADM5120 based devices - * Copyright (C) ADMtek Incorporated - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - * - */ -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/spinlock.h> -#include <linux/io.h> -#include <linux/delay.h> - -#include <linux/pci.h> -#include <linux/pci_ids.h> -#include <linux/pci_regs.h> - -#include <asm/bootinfo.h> - -#include <asm/mach-adm5120/adm5120_defs.h> -#include <asm/mach-adm5120/adm5120_info.h> -#include <asm/mach-adm5120/adm5120_defs.h> -#include <asm/mach-adm5120/adm5120_platform.h> - -#undef DEBUG - -#ifdef DEBUG -#define DBG(f, a...) printk(KERN_DEBUG f, ## a) -#else -#define DBG(f, a...) do {} while (0) -#endif - -#define PCI_ENABLE 0x80000000 - -/* -------------------------------------------------------------------------*/ - -static unsigned int adm5120_pci_nr_irqs __initdata; -static struct adm5120_pci_irq *adm5120_pci_irq_map __initdata; - -static DEFINE_SPINLOCK(pci_lock); - -/* -------------------------------------------------------------------------*/ - -static inline void write_cfgaddr(u32 addr) -{ - __raw_writel((addr | PCI_ENABLE), - (void __iomem *)(KSEG1ADDR(ADM5120_PCICFG_ADDR))); -} - -static inline void write_cfgdata(u32 data) -{ - __raw_writel(data, (void __iomem *)KSEG1ADDR(ADM5120_PCICFG_DATA)); -} - -static inline u32 read_cfgdata(void) -{ - return __raw_readl((void __iomem *)KSEG1ADDR(ADM5120_PCICFG_DATA)); -} - -static inline u32 mkaddr(struct pci_bus *bus, unsigned int devfn, int where) -{ - return ((bus->number & 0xFF) << 16) | ((devfn & 0xFF) << 8) | \ - (where & 0xFC); -} - -/* -------------------------------------------------------------------------*/ - -static int pci_config_read(struct pci_bus *bus, unsigned int devfn, int where, - int size, u32 *val) -{ - unsigned long flags; - u32 data; - - spin_lock_irqsave(&pci_lock, flags); - - write_cfgaddr(mkaddr(bus, devfn, where)); - data = read_cfgdata(); - - DBG("PCI: cfg_read %02u.%02u.%01u/%02X:%01d, cfg:0x%08X", - bus->number, PCI_SLOT(devfn), PCI_FUNC(devfn), - where, size, data); - - switch (size) { - case 1: - if (where & 1) - data >>= 8; - if (where & 2) - data >>= 16; - data &= 0xFF; - break; - case 2: - if (where & 2) - data >>= 16; - data &= 0xFFFF; - break; - } - - *val = data; - DBG(", 0x%08X returned\n", data); - - spin_unlock_irqrestore(&pci_lock, flags); - - return PCIBIOS_SUCCESSFUL; -} - -static int pci_config_write(struct pci_bus *bus, unsigned int devfn, int where, - int size, u32 val) -{ - unsigned long flags; - u32 data; - int s; - - spin_lock_irqsave(&pci_lock, flags); - - write_cfgaddr(mkaddr(bus, devfn, where)); - data = read_cfgdata(); - - DBG("PCI: cfg_write %02u.%02u.%01u/%02X:%01d, cfg:0x%08X", - bus->number, PCI_SLOT(devfn), PCI_FUNC(devfn), - where, size, data); - - switch (size) { - case 1: - s = ((where & 3) << 3); - data &= ~(0xFF << s); - data |= ((val & 0xFF) << s); - break; - case 2: - s = ((where & 2) << 4); - data &= ~(0xFFFF << s); - data |= ((val & 0xFFFF) << s); - break; - case 4: - data = val; - break; - } - - write_cfgdata(data); - DBG(", 0x%08X written\n", data); - - spin_unlock_irqrestore(&pci_lock, flags); - - return PCIBIOS_SUCCESSFUL; -} - -struct pci_ops adm5120_pci_ops = { - .read = pci_config_read, - .write = pci_config_write, -}; - -/* -------------------------------------------------------------------------*/ - -static void adm5120_pci_fixup(struct pci_dev *dev) -{ - if (dev->devfn != 0) - return; - - /* setup COMMAND register */ - pci_write_config_word(dev, PCI_COMMAND, - (PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER)); - - /* setup CACHE_LINE_SIZE register */ - pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, 4); - - /* setup BARS */ - pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, 0); - pci_write_config_dword(dev, PCI_BASE_ADDRESS_1, 0); -} - -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ADMTEK, PCI_DEVICE_ID_ADMTEK_ADM5120, - adm5120_pci_fixup); - -/* -------------------------------------------------------------------------*/ - -void __init adm5120_pci_set_irq_map(unsigned int nr_irqs, - struct adm5120_pci_irq *map) -{ - adm5120_pci_nr_irqs = nr_irqs; - adm5120_pci_irq_map = map; -} - -int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) -{ - int irq = -1; - int i; - - if ((!adm5120_pci_nr_irqs) || (!adm5120_pci_irq_map)) { - printk(KERN_ALERT "PCI: pci_irq_map is not initialized\n"); - goto out; - } - - if (slot < 1 || slot > 4) { - printk(KERN_ALERT "PCI: slot number %u is not supported\n", - slot); - goto out; - } - - for (i = 0; i < adm5120_pci_nr_irqs; i++) { - if ((adm5120_pci_irq_map[i].slot == slot) - && (adm5120_pci_irq_map[i].func == PCI_FUNC(dev->devfn)) - && (adm5120_pci_irq_map[i].pin == pin)) { - irq = adm5120_pci_irq_map[i].irq; - break; - } - } - - if (irq < 0) { - printk(KERN_ALERT "PCI: no irq found for %s pin:%u\n", - pci_name((struct pci_dev *)dev), pin); - } else { - printk(KERN_INFO "PCI: mapping irq for %s pin:%u, irq:%d\n", - pci_name((struct pci_dev *)dev), pin, irq); - } - -out: - return irq; -} - -int pcibios_plat_dev_init(struct pci_dev *dev) -{ - return 0; -} - -/* -------------------------------------------------------------------------*/ - -static struct resource pci_io_resource = { - .name = "ADM5120 PCI I/O", - .start = ADM5120_PCIIO_BASE, - .end = ADM5120_PCICFG_ADDR-1, - .flags = IORESOURCE_IO -}; - -static struct resource pci_mem_resource = { - .name = "ADM5120 PCI MEM", - .start = ADM5120_PCIMEM_BASE, - .end = ADM5120_PCIIO_BASE-1, - .flags = IORESOURCE_MEM -}; - -static struct pci_controller adm5120_controller = { - .pci_ops = &adm5120_pci_ops, - .io_resource = &pci_io_resource, - .mem_resource = &pci_mem_resource, -}; - -static int __init adm5120_pci_setup(void) -{ - if (adm5120_package_pqfp()) { - printk(KERN_INFO "PCI: not available on ADM5120P\n"); - return -1; - } - - /* Avoid ISA compat ranges. */ - PCIBIOS_MIN_IO = 0x00000000; - PCIBIOS_MIN_MEM = 0x00000000; - - /* Set I/O resource limits. */ - ioport_resource.end = 0x1fffffff; - iomem_resource.end = 0xffffffff; - - register_pci_controller(&adm5120_controller); - return 0; -} - -arch_initcall(adm5120_pci_setup); |