diff options
Diffstat (limited to 'arch/sparc64/kernel/auxio.c')
| -rw-r--r-- | arch/sparc64/kernel/auxio.c | 191 |
1 files changed, 0 insertions, 191 deletions
diff --git a/arch/sparc64/kernel/auxio.c b/arch/sparc64/kernel/auxio.c deleted file mode 100644 index 2c42894b188..00000000000 --- a/arch/sparc64/kernel/auxio.c +++ /dev/null @@ -1,191 +0,0 @@ -/* auxio.c: Probing for the Sparc AUXIO register at boot time. - * - * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) - * - * Refactoring for unified NCR/PCIO support 2002 Eric Brower (ebrower@usa.net) - */ - -#include <linux/config.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/ioport.h> - -#include <asm/oplib.h> -#include <asm/io.h> -#include <asm/sbus.h> -#include <asm/ebus.h> -#include <asm/auxio.h> - -/* This cannot be static, as it is referenced in irq.c */ -void __iomem *auxio_register = NULL; - -enum auxio_type { - AUXIO_TYPE_NODEV, - AUXIO_TYPE_SBUS, - AUXIO_TYPE_EBUS -}; - -static enum auxio_type auxio_devtype = AUXIO_TYPE_NODEV; -static DEFINE_SPINLOCK(auxio_lock); - -static void __auxio_sbus_set(u8 bits_on, u8 bits_off) -{ - if (auxio_register) { - unsigned char regval; - unsigned long flags; - unsigned char newval; - - spin_lock_irqsave(&auxio_lock, flags); - - regval = sbus_readb(auxio_register); - newval = regval | bits_on; - newval &= ~bits_off; - newval &= ~AUXIO_AUX1_MASK; - sbus_writeb(newval, auxio_register); - - spin_unlock_irqrestore(&auxio_lock, flags); - } -} - -static void __auxio_ebus_set(u8 bits_on, u8 bits_off) -{ - if (auxio_register) { - unsigned char regval; - unsigned long flags; - unsigned char newval; - - spin_lock_irqsave(&auxio_lock, flags); - - regval = (u8)readl(auxio_register); - newval = regval | bits_on; - newval &= ~bits_off; - writel((u32)newval, auxio_register); - - spin_unlock_irqrestore(&auxio_lock, flags); - } -} - -static inline void __auxio_ebus_set_led(int on) -{ - (on) ? __auxio_ebus_set(AUXIO_PCIO_LED, 0) : - __auxio_ebus_set(0, AUXIO_PCIO_LED) ; -} - -static inline void __auxio_sbus_set_led(int on) -{ - (on) ? __auxio_sbus_set(AUXIO_AUX1_LED, 0) : - __auxio_sbus_set(0, AUXIO_AUX1_LED) ; -} - -void auxio_set_led(int on) -{ - switch(auxio_devtype) { - case AUXIO_TYPE_SBUS: - __auxio_sbus_set_led(on); - break; - case AUXIO_TYPE_EBUS: - __auxio_ebus_set_led(on); - break; - default: - break; - } -} - -static inline void __auxio_sbus_set_lte(int on) -{ - (on) ? __auxio_sbus_set(AUXIO_AUX1_LTE, 0) : - __auxio_sbus_set(0, AUXIO_AUX1_LTE) ; -} - -void auxio_set_lte(int on) -{ - switch(auxio_devtype) { - case AUXIO_TYPE_SBUS: - __auxio_sbus_set_lte(on); - break; - case AUXIO_TYPE_EBUS: - /* FALL-THROUGH */ - default: - break; - } -} - -static void __devinit auxio_report_dev(struct device_node *dp) -{ - printk(KERN_INFO "AUXIO: Found device at %s\n", - dp->full_name); -} - -static struct of_device_id auxio_match[] = { - { - .name = "auxio", - }, - {}, -}; - -MODULE_DEVICE_TABLE(of, auxio_match); - -#ifdef CONFIG_SBUS -static int __devinit auxio_sbus_probe(struct of_device *dev, const struct of_device_id *match) -{ - struct sbus_dev *sdev = to_sbus_device(&dev->dev); - - auxio_devtype = AUXIO_TYPE_SBUS; - auxio_register = sbus_ioremap(&sdev->resource[0], 0, - sdev->reg_addrs[0].reg_size, - "auxiliaryIO"); - if (!auxio_register) - return -ENODEV; - - auxio_report_dev(dev->node); - return 0; -} - -static struct of_platform_driver auxio_sbus_driver = { - .name = "auxio", - .match_table = auxio_match, - .probe = auxio_sbus_probe, -}; -#endif - -#ifdef CONFIG_PCI -static int __devinit auxio_ebus_probe(struct of_device *dev, const struct of_device_id *match) -{ - struct linux_ebus_device *edev = to_ebus_device(&dev->dev); - - auxio_devtype = AUXIO_TYPE_EBUS; - auxio_register = ioremap(edev->resource[0].start, sizeof(u32)); - if (!auxio_register) - return -ENODEV; - - auxio_report_dev(dev->node); - - auxio_set_led(AUXIO_LED_ON); - - return 0; -} - -static struct of_platform_driver auxio_ebus_driver = { - .name = "auxio", - .match_table = auxio_match, - .probe = auxio_ebus_probe, -}; -#endif - -static int __init auxio_probe(void) -{ -#ifdef CONFIG_SBUS - of_register_driver(&auxio_sbus_driver, &sbus_bus_type); -#endif -#ifdef CONFIG_PCI - of_register_driver(&auxio_ebus_driver, &ebus_bus_type); -#endif - - return 0; -} - -/* Must be after subsys_initcall() so that busses are probed. Must - * be before device_initcall() because things like the floppy driver - * need to use the AUXIO register. - */ -fs_initcall(auxio_probe); |