diff options
Diffstat (limited to 'arch/arm/kernel/hw-footbridge.c')
| -rw-r--r-- | arch/arm/kernel/hw-footbridge.c | 269 |
1 files changed, 6 insertions, 263 deletions
diff --git a/arch/arm/kernel/hw-footbridge.c b/arch/arm/kernel/hw-footbridge.c index 54a64b811..117011e1d 100644 --- a/arch/arm/kernel/hw-footbridge.c +++ b/arch/arm/kernel/hw-footbridge.c @@ -25,269 +25,8 @@ #include <asm/system.h> #define IRDA_IO_BASE 0x180 -#define ETHER10_IO_BASE 0x301 #define GP1_IO_BASE 0x338 #define GP2_IO_BASE 0x33a -#define DEC21143_IO_BASE 0x401 -#define DEC21143_MEM_BASE 0x00800000 -#define CYBER2000_MEM_BASE 0x01000000 - -int have_isa_bridge; - -extern int setup_arm_irq(int, struct irqaction *); -extern void pci_set_cmd(struct pci_dev *dev, unsigned short clear, unsigned short set); -extern void pci_set_base_addr(struct pci_dev *dev, int idx, unsigned int addr); -extern void pci_set_irq_line(struct pci_dev *dev, unsigned int irq); -extern void (*kd_mksound)(unsigned int hz, unsigned int ticks); - -#ifdef CONFIG_PCI - -static int irqmap_ebsa[] __initdata = { IRQ_IN1, IRQ_IN0, IRQ_PCI, IRQ_IN3 }; - -static int __init ebsa_irqval(struct pci_dev *dev) -{ - unsigned char pin; - - pcibios_read_config_byte(dev->bus->number, - dev->devfn, - PCI_INTERRUPT_PIN, - &pin); - - return irqmap_ebsa[(PCI_SLOT(dev->devfn) + pin) & 3]; -} - -#ifdef CONFIG_CATS -static int irqmap_cats[] __initdata = { IRQ_PCI, IRQ_IN0, IRQ_IN1, IRQ_IN3 }; - -static int __init cats_irqval(struct pci_dev *dev) -{ - if (dev->irq >= 128) - return 16 + (dev->irq & 0x1f); - - switch (dev->irq) { - case 1: - case 2: - case 3: - case 4: - return irqmap_cats[dev->irq - 1]; - case 0: - return 0; - } - - printk("PCI: device %02x:%02x has unknown irq line %x\n", - dev->bus->number, dev->devfn, dev->irq); - return 0; -} -#endif - -void __init pcibios_fixup_ebsa285(struct pci_dev *dev) -{ - /* Latency timer of 32 */ - pci_write_config_byte(dev, PCI_LATENCY_TIMER, 32); - - /* 32-byte cache line size */ - pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, 8); - - /* Set SysErr enable, Parity enable */ - pci_set_cmd(dev, 0, PCI_COMMAND_FAST_BACK | PCI_COMMAND_SERR | PCI_COMMAND_PARITY); - - /* If this device is an ISA bridge, set the - * have_isa_bridge flag. We will then go looking - * for things like keyboard, etc - */ - if ((dev->class >> 8) == PCI_CLASS_BRIDGE_ISA || - (dev->class >> 8) == PCI_CLASS_BRIDGE_EISA) - have_isa_bridge = !0; - - /* sort out the irq mapping for this device */ - switch (machine_arch_type) { - case MACH_TYPE_EBSA285: - dev->irq = ebsa_irqval(dev); - /* Turn on bus mastering - boot loader doesn't - * - perhaps it should! - dag - */ - pci_set_cmd(dev, 0, PCI_COMMAND_MASTER); - break; - -#ifdef CONFIG_CATS - case MACH_TYPE_CATS: - dev->irq = cats_irqval(dev); - /* Turn on bus mastering - boot loader doesn't - * - perhaps it should! - dag - */ - pci_set_cmd(dev, 0, PCI_COMMAND_MASTER); - break; -#endif -#ifdef CONFIG_ARCH_NETWINDER - case MACH_TYPE_NETWINDER: - /* disable ROM */ - pci_write_config_dword(dev, PCI_ROM_ADDRESS, 0); - -#define DEV(v,d) ((v)<<16|(d)) - switch (DEV(dev->vendor, dev->device)) { - /* Ether 100 */ - case DEV(PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21142): - pci_set_base_addr(dev, 0, DEC21143_IO_BASE); - pci_set_base_addr(dev, 1, DEC21143_MEM_BASE); - pci_set_cmd(dev, 0, PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY | PCI_COMMAND_IO); - /* Put the chip to sleep in case the driver isn't loaded */ - pci_write_config_dword(dev, 0x40, 0x80000000); - dev->irq = IRQ_NETWINDER_ETHER100; - break; - - /* Ether 10 */ - case DEV(PCI_VENDOR_ID_WINBOND2,0x5a5a): - pci_set_base_addr(dev, 0, ETHER10_IO_BASE); - pci_set_cmd(dev, PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY, PCI_COMMAND_IO); - dev->irq = IRQ_NETWINDER_ETHER10; - break; - - /* ISA bridge */ - case DEV(PCI_VENDOR_ID_WINBOND,PCI_DEVICE_ID_WINBOND_83C553): - pci_set_base_addr(dev, 0, 0); - pci_set_cmd(dev, PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY, PCI_COMMAND_IO); - /* - * Enable all memory requests from ISA to be channeled to PCI - */ - pci_write_config_byte(dev, 0x48, 255); - /* - * Disable ping-pong (as per errata) - */ - pci_write_config_byte(dev, 0x42, 0); - /* - * Enable PCI packet retry - */ - pci_write_config_byte(dev, 0x40, 0x22); - /* - * Do not use PCI CPU park enable, park on - * last master, disable GAT bit - */ - pci_write_config_byte(dev, 0x83, 0x02); - /* - * Default rotating priorities - */ - pci_write_config_byte(dev, 0x80, 0xe0); - /* - * Rotate bank 4 - */ - pci_write_config_byte(dev, 0x81, 0x01); - break; - - /* IDE */ - case DEV(PCI_VENDOR_ID_WINBOND,PCI_DEVICE_ID_WINBOND_82C105): - pci_set_base_addr(dev, 0, 0x1f1); - pci_set_base_addr(dev, 1, 0x3f5); - pci_set_base_addr(dev, 2, 0x171); - pci_set_base_addr(dev, 3, 0x375); - pci_set_base_addr(dev, 4, 0xe801); - pci_set_cmd(dev, PCI_COMMAND_MEMORY, PCI_COMMAND_MASTER | PCI_COMMAND_IO); - dev->irq = IRQ_ISA_HARDDISK1; - break; - - /* VGA */ - case DEV(PCI_VENDOR_ID_INTERG,0x2000): - pci_set_base_addr(dev, 0, CYBER2000_MEM_BASE); - pci_set_cmd(dev, PCI_COMMAND_MASTER, PCI_COMMAND_IO | PCI_COMMAND_MEMORY); - dev->irq = IRQ_NETWINDER_VGA; - break; - } -#endif - } -} - -static inline void -report_pci_dev_error(void) -{ - struct pci_dev *dev; - - for (dev = pci_devices; dev; dev = dev->next) { - unsigned short status; - - pci_read_config_word(dev, PCI_STATUS, &status); - if (status & 0xf900) { - printk(KERN_DEBUG "PCI: [%04X:%04X] status = %X\n", - dev->vendor, dev->device, status); - - pci_write_config_word(dev, PCI_STATUS, status & 0xf900); - } - } -} -#else -#define report_pci_dev_error() -#endif - -/* - * Warn on PCI errors. Please report any occurances! - */ -static void -irq_pci_err(int irq, void *dev_id, struct pt_regs *regs) -{ - static unsigned long next_warn; - unsigned long cmd = *CSR_PCICMD & 0x0000ffff; - unsigned long ctrl = (*CSR_SA110_CNTL) & 0xffffde07; - unsigned long irqstatus = *CSR_IRQ_RAWSTATUS; - int warn = time_after_eq(jiffies, next_warn); - - ctrl |= SA110_CNTL_DISCARDTIMER; - - if (warn) { - next_warn = jiffies + 3 * HZ / 100; - printk(KERN_DEBUG "PCI: "); - } - - if (irqstatus & (1 << 31)) { - if (warn) - printk("parity error "); - cmd |= 1 << 31; - } - - if (irqstatus & (1 << 30)) { - if (warn) - printk("target abort "); - cmd |= 1 << 28; - } - - if (irqstatus & (1 << 29)) { - if (warn) - printk("master abort "); - cmd |= 1 << 29; - } - - if (irqstatus & (1 << 28)) { - if (warn) - printk("data parity error "); - cmd |= 1 << 24; - } - - if (irqstatus & (1 << 27)) { - if (warn) - printk("discard timer expired "); - ctrl &= ~SA110_CNTL_DISCARDTIMER; - } - - if (irqstatus & (1 << 23)) { - if (warn) - printk("system error "); - ctrl |= SA110_CNTL_RXSERR; - } - - if (warn) - printk("pc=[<%08lX>]\n", instruction_pointer(regs)); - - report_pci_dev_error(); - - *CSR_PCICMD = cmd; - *CSR_SA110_CNTL = ctrl; -} - -static struct irqaction irq_pci_error = { - irq_pci_err, SA_INTERRUPT, 0, "PCI error", NULL, NULL -}; - -void __init pcibios_init_ebsa285(void) -{ - setup_arm_irq(IRQ_PCI_ERR, &irq_pci_error); -} /* * Netwinder stuff @@ -627,7 +366,7 @@ void __netwinder_text cpld_modify(int mask, int set) current_cpld = (current_cpld & ~mask) | set; - gpio_modify_io(GPIO_DATA, 0); + gpio_modify_io(GPIO_DATA | GPIO_IOCLK | GPIO_IOLOAD, 0); gpio_modify_op(GPIO_IOLOAD, 0); for (msk = 8; msk; msk >>= 1) { @@ -647,7 +386,7 @@ static void __init cpld_init(void) unsigned long flags; spin_lock_irqsave(&gpio_lock, flags); - cpld_modify(-1, CPLD_UNMUTE | 4); + cpld_modify(-1, CPLD_UNMUTE | CPLD_7111_DISABLE); spin_unlock_irqrestore(&gpio_lock, flags); } @@ -713,12 +452,15 @@ static inline void rwa010_global_init(void) dprintk("Card no = %d\n", inb(0x203)); + /* disable the modem section of the chip */ WRITE_RWA(7, 3); WRITE_RWA(0x30, 0); + /* disable the cdrom section of the chip */ WRITE_RWA(7, 4); WRITE_RWA(0x30, 0); + /* disable the MPU-401 section of the chip */ WRITE_RWA(7, 2); WRITE_RWA(0x30, 0); } @@ -925,6 +667,7 @@ void __init hw_init(void) extern void register_isa_ports(unsigned int, unsigned int, unsigned int); register_isa_ports(DC21285_PCI_MEM, DC21285_PCI_IO, 0); + #ifdef CONFIG_ARCH_NETWINDER /* * this ought to have a better home... |