diff options
Diffstat (limited to 'arch/arm26/machine')
| -rw-r--r-- | arch/arm26/machine/Makefile | 8 | ||||
| -rw-r--r-- | arch/arm26/machine/dma.c | 214 | ||||
| -rw-r--r-- | arch/arm26/machine/irq.c | 164 | ||||
| -rw-r--r-- | arch/arm26/machine/latches.c | 72 |
4 files changed, 0 insertions, 458 deletions
diff --git a/arch/arm26/machine/Makefile b/arch/arm26/machine/Makefile deleted file mode 100644 index 86ea97c..0000000 --- a/arch/arm26/machine/Makefile +++ /dev/null @@ -1,8 +0,0 @@ -# -# Makefile for the linux kernel. -# - -# Object file lists. - -obj-y := dma.o irq.o latches.o - diff --git a/arch/arm26/machine/dma.c b/arch/arm26/machine/dma.c deleted file mode 100644 index 4402a5a..0000000 --- a/arch/arm26/machine/dma.c +++ /dev/null @@ -1,214 +0,0 @@ -/* - * linux/arch/arm26/kernel/dma.c - * - * Copyright (C) 1998-1999 Dave Gilbert / Russell King - * Copyright (C) 2003 Ian Molton - * - * 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. - * - * DMA functions specific to Archimedes and A5000 architecture - */ -#include <linux/sched.h> -#include <linux/init.h> - -#include <asm/dma.h> -#include <asm/fiq.h> -#include <asm/irq.h> -#include <asm/io.h> -#include <asm/hardware.h> -#include <asm/mach-types.h> - -#define DPRINTK(x...) printk(KERN_DEBUG x) - -#if defined(CONFIG_BLK_DEV_FD1772) || defined(CONFIG_BLK_DEV_FD1772_MODULE) - -extern unsigned char fdc1772_dma_read, fdc1772_dma_read_end; -extern unsigned char fdc1772_dma_write, fdc1772_dma_write_end; -extern void fdc1772_setupdma(unsigned int count,unsigned int addr); - -static void arc_floppy_data_enable_dma(dmach_t channel, dma_t *dma) -{ - DPRINTK("arc_floppy_data_enable_dma\n"); - - if (dma->using_sg) - BUG(); - - switch (dma->dma_mode) { - case DMA_MODE_READ: { /* read */ - unsigned long flags; - DPRINTK("enable_dma fdc1772 data read\n"); - local_save_flags_cli(flags); - clf(); - - memcpy ((void *)0x1c, (void *)&fdc1772_dma_read, - &fdc1772_dma_read_end - &fdc1772_dma_read); - fdc1772_setupdma(dma->buf.length, dma->buf.__address); /* Sets data pointer up */ - enable_fiq(FIQ_FLOPPYDATA); - local_irq_restore(flags); - } - break; - - case DMA_MODE_WRITE: { /* write */ - unsigned long flags; - DPRINTK("enable_dma fdc1772 data write\n"); - local_save_flags_cli(flags); - clf(); - memcpy ((void *)0x1c, (void *)&fdc1772_dma_write, - &fdc1772_dma_write_end - &fdc1772_dma_write); - fdc1772_setupdma(dma->buf.length, dma->buf.__address); /* Sets data pointer up */ - enable_fiq(FIQ_FLOPPYDATA); - - local_irq_restore(flags); - } - break; - default: - printk ("enable_dma: dma%d not initialised\n", channel); - } -} - -static int arc_floppy_data_get_dma_residue(dmach_t channel, dma_t *dma) -{ - extern unsigned int fdc1772_bytestogo; - - /* 10/1/1999 DAG - I presume its the number of bytes left? */ - return fdc1772_bytestogo; -} - -static void arc_floppy_cmdend_enable_dma(dmach_t channel, dma_t *dma) -{ - /* Need to build a branch at the FIQ address */ - extern void fdc1772_comendhandler(void); - unsigned long flags; - - DPRINTK("arc_floppy_cmdend_enable_dma\n"); - /*printk("enable_dma fdc1772 command end FIQ\n");*/ - save_flags(flags); - clf(); - - /* B fdc1772_comendhandler */ - *((unsigned int *)0x1c)=0xea000000 | - (((unsigned int)fdc1772_comendhandler-(0x1c+8))/4); - - local_irq_restore(flags); -} - -static int arc_floppy_cmdend_get_dma_residue(dmach_t channel, dma_t *dma) -{ - /* 10/1/1999 DAG - Presume whether there is an outstanding command? */ - extern unsigned int fdc1772_fdc_int_done; - - /* Explicit! If the int done is 0 then 1 int to go */ - return (fdc1772_fdc_int_done==0)?1:0; -} - -static void arc_disable_dma(dmach_t channel, dma_t *dma) -{ - disable_fiq(dma->dma_irq); -} - -static struct dma_ops arc_floppy_data_dma_ops = { - .type = "FIQDMA", - .enable = arc_floppy_data_enable_dma, - .disable = arc_disable_dma, - .residue = arc_floppy_data_get_dma_residue, -}; - -static struct dma_ops arc_floppy_cmdend_dma_ops = { - .type = "FIQCMD", - .enable = arc_floppy_cmdend_enable_dma, - .disable = arc_disable_dma, - .residue = arc_floppy_cmdend_get_dma_residue, -}; -#endif - -#ifdef CONFIG_ARCH_A5K -static struct fiq_handler fh = { - .name = "floppydata" -}; - -static int a5k_floppy_get_dma_residue(dmach_t channel, dma_t *dma) -{ - struct pt_regs regs; - get_fiq_regs(®s); - return regs.ARM_r9; -} - -static void a5k_floppy_enable_dma(dmach_t channel, dma_t *dma) -{ - struct pt_regs regs; - void *fiqhandler_start; - unsigned int fiqhandler_length; - extern void floppy_fiqsetup(unsigned long len, unsigned long addr, - unsigned long port); - - if (dma->using_sg) - BUG(); - - if (dma->dma_mode == DMA_MODE_READ) { - extern unsigned char floppy_fiqin_start, floppy_fiqin_end; - fiqhandler_start = &floppy_fiqin_start; - fiqhandler_length = &floppy_fiqin_end - &floppy_fiqin_start; - } else { - extern unsigned char floppy_fiqout_start, floppy_fiqout_end; - fiqhandler_start = &floppy_fiqout_start; - fiqhandler_length = &floppy_fiqout_end - &floppy_fiqout_start; - } - if (claim_fiq(&fh)) { - printk("floppydma: couldn't claim FIQ.\n"); - return; - } - memcpy((void *)0x1c, fiqhandler_start, fiqhandler_length); - regs.ARM_r9 = dma->buf.length; - regs.ARM_r10 = (unsigned long)dma->buf.__address; - regs.ARM_fp = FLOPPYDMA_BASE; - set_fiq_regs(®s); - enable_fiq(dma->dma_irq); -} - -static void a5k_floppy_disable_dma(dmach_t channel, dma_t *dma) -{ - disable_fiq(dma->dma_irq); - release_fiq(&fh); -} - -static struct dma_ops a5k_floppy_dma_ops = { - .type = "FIQDMA", - .enable = a5k_floppy_enable_dma, - .disable = a5k_floppy_disable_dma, - .residue = a5k_floppy_get_dma_residue, -}; -#endif - -/* - * This is virtual DMA - we don't need anything here - */ -static void sound_enable_disable_dma(dmach_t channel, dma_t *dma) -{ -} - -static struct dma_ops sound_dma_ops = { - .type = "VIRTUAL", - .enable = sound_enable_disable_dma, - .disable = sound_enable_disable_dma, -}; - -void __init arch_dma_init(dma_t *dma) -{ -#if defined(CONFIG_BLK_DEV_FD1772) || defined(CONFIG_BLK_DEV_FD1772_MODULE) - if (machine_is_archimedes()) { - dma[DMA_VIRTUAL_FLOPPY0].dma_irq = FIQ_FLOPPYDATA; - dma[DMA_VIRTUAL_FLOPPY0].d_ops = &arc_floppy_data_dma_ops; - dma[DMA_VIRTUAL_FLOPPY1].dma_irq = 1; - dma[DMA_VIRTUAL_FLOPPY1].d_ops = &arc_floppy_cmdend_dma_ops; - } -#endif -#ifdef CONFIG_ARCH_A5K - if (machine_is_a5k()) { - dma[DMA_VIRTUAL_FLOPPY0].dma_irq = FIQ_FLOPPYDATA; - dma[DMA_VIRTUAL_FLOPPY0].d_ops = &a5k_floppy_dma_ops; - } -#endif - dma[DMA_VIRTUAL_SOUND].d_ops = &sound_dma_ops; -} diff --git a/arch/arm26/machine/irq.c b/arch/arm26/machine/irq.c deleted file mode 100644 index a60d543..0000000 --- a/arch/arm26/machine/irq.c +++ /dev/null @@ -1,164 +0,0 @@ -/* - * linux/arch/arm26/mach-arc/irq.c - * - * Copyright (C) 1996 Russell King - * - * 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. - * - * Changelog: - * 24-09-1996 RMK Created - * 10-10-1996 RMK Brought up to date with arch-sa110eval - * 22-10-1996 RMK Changed interrupt numbers & uses new inb/outb macros - * 11-01-1998 RMK Added mask_and_ack_irq - * 22-08-1998 RMK Restructured IRQ routines - * 08-09-2002 IM Brought up to date for 2.5 - * 01-06-2003 JMA Removed arc_fiq_chip - */ -#include <linux/init.h> - -#include <asm/irq.h> -#include <asm/irqchip.h> -#include <asm/ioc.h> -#include <asm/io.h> -#include <asm/system.h> - -extern void init_FIQ(void); - -#define a_clf() clf() -#define a_stf() stf() - -static void arc_ack_irq_a(unsigned int irq) -{ - unsigned int val, mask; - - mask = 1 << irq; - a_clf(); - val = ioc_readb(IOC_IRQMASKA); - ioc_writeb(val & ~mask, IOC_IRQMASKA); - ioc_writeb(mask, IOC_IRQCLRA); - a_stf(); -} - -static void arc_mask_irq_a(unsigned int irq) -{ - unsigned int val, mask; - - mask = 1 << irq; - a_clf(); - val = ioc_readb(IOC_IRQMASKA); - ioc_writeb(val & ~mask, IOC_IRQMASKA); - a_stf(); -} - -static void arc_unmask_irq_a(unsigned int irq) -{ - unsigned int val, mask; - - mask = 1 << irq; - a_clf(); - val = ioc_readb(IOC_IRQMASKA); - ioc_writeb(val | mask, IOC_IRQMASKA); - a_stf(); -} - -static struct irqchip arc_a_chip = { - .ack = arc_ack_irq_a, - .mask = arc_mask_irq_a, - .unmask = arc_unmask_irq_a, -}; - -static void arc_mask_irq_b(unsigned int irq) -{ - unsigned int val, mask; - mask = 1 << (irq & 7); - val = ioc_readb(IOC_IRQMASKB); - ioc_writeb(val & ~mask, IOC_IRQMASKB); -} - -static void arc_unmask_irq_b(unsigned int irq) -{ - unsigned int val, mask; - - mask = 1 << (irq & 7); - val = ioc_readb(IOC_IRQMASKB); - ioc_writeb(val | mask, IOC_IRQMASKB); -} - -static struct irqchip arc_b_chip = { - .ack = arc_mask_irq_b, - .mask = arc_mask_irq_b, - .unmask = arc_unmask_irq_b, -}; - -/* FIXME - JMA none of these functions are used in arm26 currently -static void arc_mask_irq_fiq(unsigned int irq) -{ - unsigned int val, mask; - - mask = 1 << (irq & 7); - val = ioc_readb(IOC_FIQMASK); - ioc_writeb(val & ~mask, IOC_FIQMASK); -} - -static void arc_unmask_irq_fiq(unsigned int irq) -{ - unsigned int val, mask; - - mask = 1 << (irq & 7); - val = ioc_readb(IOC_FIQMASK); - ioc_writeb(val | mask, IOC_FIQMASK); -} - -static struct irqchip arc_fiq_chip = { - .ack = arc_mask_irq_fiq, - .mask = arc_mask_irq_fiq, - .unmask = arc_unmask_irq_fiq, -}; -*/ - -void __init arc_init_irq(void) -{ - unsigned int irq, flags; - - /* Disable all IOC interrupt sources */ - ioc_writeb(0, IOC_IRQMASKA); - ioc_writeb(0, IOC_IRQMASKB); - ioc_writeb(0, IOC_FIQMASK); - - for (irq = 0; irq < NR_IRQS; irq++) { - flags = IRQF_VALID; - - if (irq <= 6 || (irq >= 9 && irq <= 15)) - flags |= IRQF_PROBE; - - if (irq == IRQ_KEYBOARDTX) - flags |= IRQF_NOAUTOEN; - - switch (irq) { - case 0 ... 7: - set_irq_chip(irq, &arc_a_chip); - set_irq_handler(irq, do_level_IRQ); - set_irq_flags(irq, flags); - break; - - case 8 ... 15: - set_irq_chip(irq, &arc_b_chip); - set_irq_handler(irq, do_level_IRQ); - set_irq_flags(irq, flags); - -/* case 64 ... 72: - set_irq_chip(irq, &arc_fiq_chip); - set_irq_flags(irq, flags); - break; -*/ - - } - } - - irq_desc[IRQ_KEYBOARDTX].noautoenable = 1; - - init_FIQ(); -} - diff --git a/arch/arm26/machine/latches.c b/arch/arm26/machine/latches.c deleted file mode 100644 index 94f05d2..0000000 --- a/arch/arm26/machine/latches.c +++ /dev/null @@ -1,72 +0,0 @@ -/* - * linux/arch/arm26/kernel/latches.c - * - * Copyright (C) David Alan Gilbert 1995/1996,2000 - * Copyright (C) Ian Molton 2003 - * - * 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. - * - * Support for the latches on the old Archimedes which control the floppy, - * hard disc and printer - */ -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/sched.h> - -#include <asm/io.h> -#include <asm/hardware.h> -#include <asm/mach-types.h> -#include <asm/oldlatches.h> - -static unsigned char latch_a_copy; -static unsigned char latch_b_copy; - -/* newval=(oldval & ~mask)|newdata */ -void oldlatch_aupdate(unsigned char mask,unsigned char newdata) -{ - unsigned long flags; - - BUG_ON(!machine_is_archimedes()); - - local_irq_save(flags); //FIXME: was local_save_flags - latch_a_copy = (latch_a_copy & ~mask) | newdata; - __raw_writeb(latch_a_copy, LATCHA_BASE); - local_irq_restore(flags); - - printk("Latch: A = 0x%02x\n", latch_a_copy); -} - - -/* newval=(oldval & ~mask)|newdata */ -void oldlatch_bupdate(unsigned char mask,unsigned char newdata) -{ - unsigned long flags; - - BUG_ON(!machine_is_archimedes()); - - - local_irq_save(flags);//FIXME: was local_save_flags - latch_b_copy = (latch_b_copy & ~mask) | newdata; - __raw_writeb(latch_b_copy, LATCHB_BASE); - local_irq_restore(flags); - - printk("Latch: B = 0x%02x\n", latch_b_copy); -} - -static int __init oldlatch_init(void) -{ - if (machine_is_archimedes()) { - oldlatch_aupdate(0xff, 0xff); - /* Thats no FDC reset...*/ - oldlatch_bupdate(0xff, LATCHB_FDCRESET); - } - return 0; -} - -arch_initcall(oldlatch_init); - -EXPORT_SYMBOL(oldlatch_aupdate); -EXPORT_SYMBOL(oldlatch_bupdate); |