diff options
Diffstat (limited to 'arch/mips/tx4938/toshiba_rbtx4938/irq.c')
| -rw-r--r-- | arch/mips/tx4938/toshiba_rbtx4938/irq.c | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/arch/mips/tx4938/toshiba_rbtx4938/irq.c b/arch/mips/tx4938/toshiba_rbtx4938/irq.c deleted file mode 100644 index 4d6a8dc46c7..00000000000 --- a/arch/mips/tx4938/toshiba_rbtx4938/irq.c +++ /dev/null @@ -1,161 +0,0 @@ -/* - * linux/arch/mips/tx4938/toshiba_rbtx4938/irq.c - * - * Toshiba RBTX4938 specific interrupt handlers - * Copyright (C) 2000-2001 Toshiba Corporation - * - * 2003-2005 (c) MontaVista Software, Inc. This file is licensed under the - * terms of the GNU General Public License version 2. This program is - * licensed "as is" without any warranty of any kind, whether express - * or implied. - * - * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com) - */ - -/* -IRQ Device - -16 TX4938-CP0/00 Software 0 -17 TX4938-CP0/01 Software 1 -18 TX4938-CP0/02 Cascade TX4938-CP0 -19 TX4938-CP0/03 Multiplexed -- do not use -20 TX4938-CP0/04 Multiplexed -- do not use -21 TX4938-CP0/05 Multiplexed -- do not use -22 TX4938-CP0/06 Multiplexed -- do not use -23 TX4938-CP0/07 CPU TIMER - -24 TX4938-PIC/00 -25 TX4938-PIC/01 -26 TX4938-PIC/02 Cascade RBTX4938-IOC -27 TX4938-PIC/03 RBTX4938 RTL-8019AS Ethernet -28 TX4938-PIC/04 -29 TX4938-PIC/05 TX4938 ETH1 -30 TX4938-PIC/06 TX4938 ETH0 -31 TX4938-PIC/07 -32 TX4938-PIC/08 TX4938 SIO 0 -33 TX4938-PIC/09 TX4938 SIO 1 -34 TX4938-PIC/10 TX4938 DMA0 -35 TX4938-PIC/11 TX4938 DMA1 -36 TX4938-PIC/12 TX4938 DMA2 -37 TX4938-PIC/13 TX4938 DMA3 -38 TX4938-PIC/14 -39 TX4938-PIC/15 -40 TX4938-PIC/16 TX4938 PCIC -41 TX4938-PIC/17 TX4938 TMR0 -42 TX4938-PIC/18 TX4938 TMR1 -43 TX4938-PIC/19 TX4938 TMR2 -44 TX4938-PIC/20 -45 TX4938-PIC/21 -46 TX4938-PIC/22 TX4938 PCIERR -47 TX4938-PIC/23 -48 TX4938-PIC/24 -49 TX4938-PIC/25 -50 TX4938-PIC/26 -51 TX4938-PIC/27 -52 TX4938-PIC/28 -53 TX4938-PIC/29 -54 TX4938-PIC/30 -55 TX4938-PIC/31 TX4938 SPI - -56 RBTX4938-IOC/00 PCI-D -57 RBTX4938-IOC/01 PCI-C -58 RBTX4938-IOC/02 PCI-B -59 RBTX4938-IOC/03 PCI-A -60 RBTX4938-IOC/04 RTC -61 RBTX4938-IOC/05 ATA -62 RBTX4938-IOC/06 MODEM -63 RBTX4938-IOC/07 SWINT -*/ -#include <linux/init.h> -#include <linux/interrupt.h> -#include <asm/tx4938/rbtx4938.h> - -static void toshiba_rbtx4938_irq_ioc_enable(unsigned int irq); -static void toshiba_rbtx4938_irq_ioc_disable(unsigned int irq); - -#define TOSHIBA_RBTX4938_IOC_NAME "RBTX4938-IOC" -static struct irq_chip toshiba_rbtx4938_irq_ioc_type = { - .name = TOSHIBA_RBTX4938_IOC_NAME, - .ack = toshiba_rbtx4938_irq_ioc_disable, - .mask = toshiba_rbtx4938_irq_ioc_disable, - .mask_ack = toshiba_rbtx4938_irq_ioc_disable, - .unmask = toshiba_rbtx4938_irq_ioc_enable, -}; - -int -toshiba_rbtx4938_irq_nested(int sw_irq) -{ - u8 level3; - - level3 = readb(rbtx4938_imstat_addr); - if (level3) - /* must use fls so onboard ATA has priority */ - sw_irq = TOSHIBA_RBTX4938_IRQ_IOC_BEG + fls(level3) - 1; - - return sw_irq; -} - -static struct irqaction toshiba_rbtx4938_irq_ioc_action = { - .handler = no_action, - .flags = 0, - .mask = CPU_MASK_NONE, - .name = TOSHIBA_RBTX4938_IOC_NAME, -}; - -/**********************************************************************************/ -/* Functions for ioc */ -/**********************************************************************************/ -static void __init -toshiba_rbtx4938_irq_ioc_init(void) -{ - int i; - - for (i = TOSHIBA_RBTX4938_IRQ_IOC_BEG; - i <= TOSHIBA_RBTX4938_IRQ_IOC_END; i++) - set_irq_chip_and_handler(i, &toshiba_rbtx4938_irq_ioc_type, - handle_level_irq); - - setup_irq(RBTX4938_IRQ_IOCINT, - &toshiba_rbtx4938_irq_ioc_action); -} - -static void -toshiba_rbtx4938_irq_ioc_enable(unsigned int irq) -{ - unsigned char v; - - v = readb(rbtx4938_imask_addr); - v |= (1 << (irq - TOSHIBA_RBTX4938_IRQ_IOC_BEG)); - writeb(v, rbtx4938_imask_addr); - mmiowb(); -} - -static void -toshiba_rbtx4938_irq_ioc_disable(unsigned int irq) -{ - unsigned char v; - - v = readb(rbtx4938_imask_addr); - v &= ~(1 << (irq - TOSHIBA_RBTX4938_IRQ_IOC_BEG)); - writeb(v, rbtx4938_imask_addr); - mmiowb(); -} - -void __init arch_init_irq(void) -{ - extern void tx4938_irq_init(void); - - /* Now, interrupt control disabled, */ - /* all IRC interrupts are masked, */ - /* all IRC interrupt mode are Low Active. */ - - /* mask all IOC interrupts */ - writeb(0, rbtx4938_imask_addr); - - /* clear SoftInt interrupts */ - writeb(0, rbtx4938_softint_addr); - tx4938_irq_init(); - toshiba_rbtx4938_irq_ioc_init(); - /* Onboard 10M Ether: High Active */ - set_irq_type(RBTX4938_IRQ_ETHER, IRQF_TRIGGER_HIGH); -} |