summaryrefslogtreecommitdiffstats
path: root/arch/sh/cchips/hd6446x/hd64465/setup.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/sh/cchips/hd6446x/hd64465/setup.c')
-rw-r--r--arch/sh/cchips/hd6446x/hd64465/setup.c181
1 files changed, 0 insertions, 181 deletions
diff --git a/arch/sh/cchips/hd6446x/hd64465/setup.c b/arch/sh/cchips/hd6446x/hd64465/setup.c
deleted file mode 100644
index 9b8820c36701..000000000000
--- a/arch/sh/cchips/hd6446x/hd64465/setup.c
+++ /dev/null
@@ -1,181 +0,0 @@
-/*
- * $Id: setup.c,v 1.4 2003/08/03 03:05:10 lethal Exp $
- *
- * Setup and IRQ handling code for the HD64465 companion chip.
- * by Greg Banks <gbanks@pocketpenguins.com>
- * Copyright (c) 2000 PocketPenguins Inc
- *
- * Derived from setup_hd64461.c which bore the message:
- * Copyright (C) 2000 YAEGASHI Takeshi
- */
-
-#include <linux/sched.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/ioport.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/hd64465/hd64465.h>
-
-static void disable_hd64465_irq(unsigned int irq)
-{
- unsigned short nimr;
- unsigned short mask = 1 << (irq - HD64465_IRQ_BASE);
-
- pr_debug("disable_hd64465_irq(%d): mask=%x\n", irq, mask);
- nimr = inw(HD64465_REG_NIMR);
- nimr |= mask;
- outw(nimr, HD64465_REG_NIMR);
-}
-
-static void enable_hd64465_irq(unsigned int irq)
-{
- unsigned short nimr;
- unsigned short mask = 1 << (irq - HD64465_IRQ_BASE);
-
- pr_debug("enable_hd64465_irq(%d): mask=%x\n", irq, mask);
- nimr = inw(HD64465_REG_NIMR);
- nimr &= ~mask;
- outw(nimr, HD64465_REG_NIMR);
-}
-
-static void mask_and_ack_hd64465(unsigned int irq)
-{
- disable_hd64465_irq(irq);
-}
-
-static void end_hd64465_irq(unsigned int irq)
-{
- if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
- enable_hd64465_irq(irq);
-}
-
-static unsigned int startup_hd64465_irq(unsigned int irq)
-{
- enable_hd64465_irq(irq);
- return 0;
-}
-
-static void shutdown_hd64465_irq(unsigned int irq)
-{
- disable_hd64465_irq(irq);
-}
-
-static struct hw_interrupt_type hd64465_irq_type = {
- .typename = "HD64465-IRQ",
- .startup = startup_hd64465_irq,
- .shutdown = shutdown_hd64465_irq,
- .enable = enable_hd64465_irq,
- .disable = disable_hd64465_irq,
- .ack = mask_and_ack_hd64465,
- .end = end_hd64465_irq,
-};
-
-static irqreturn_t hd64465_interrupt(int irq, void *dev_id)
-{
- printk(KERN_INFO
- "HD64465: spurious interrupt, nirr: 0x%x nimr: 0x%x\n",
- inw(HD64465_REG_NIRR), inw(HD64465_REG_NIMR));
-
- return IRQ_NONE;
-}
-
-/*
- * Support for a secondary IRQ demux step. This is necessary
- * because the HD64465 presents a very thin interface to the
- * PCMCIA bus; a lot of features (such as remapping interrupts)
- * normally done in hardware by other PCMCIA host bridges is
- * instead done in software.
- */
-static struct {
- int (*func)(int, void *);
- void *dev;
-} hd64465_demux[HD64465_IRQ_NUM];
-
-void hd64465_register_irq_demux(int irq,
- int (*demux)(int irq, void *dev), void *dev)
-{
- hd64465_demux[irq - HD64465_IRQ_BASE].func = demux;
- hd64465_demux[irq - HD64465_IRQ_BASE].dev = dev;
-}
-EXPORT_SYMBOL(hd64465_register_irq_demux);
-
-void hd64465_unregister_irq_demux(int irq)
-{
- hd64465_demux[irq - HD64465_IRQ_BASE].func = 0;
-}
-EXPORT_SYMBOL(hd64465_unregister_irq_demux);
-
-int hd64465_irq_demux(int irq)
-{
- if (irq == CONFIG_HD64465_IRQ) {
- unsigned short i, bit;
- unsigned short nirr = inw(HD64465_REG_NIRR);
- unsigned short nimr = inw(HD64465_REG_NIMR);
-
- pr_debug("hd64465_irq_demux, nirr=%04x, nimr=%04x\n", nirr, nimr);
- nirr &= ~nimr;
- for (bit = 1, i = 0 ; i < HD64465_IRQ_NUM ; bit <<= 1, i++)
- if (nirr & bit)
- break;
-
- if (i < HD64465_IRQ_NUM) {
- irq = HD64465_IRQ_BASE + i;
- if (hd64465_demux[i].func != 0)
- irq = hd64465_demux[i].func(irq, hd64465_demux[i].dev);
- }
- }
- return irq;
-}
-
-static struct irqaction irq0 = {
- .handler = hd64465_interrupt,
- .flags = IRQF_DISABLED,
- .mask = CPU_MASK_NONE,
- .name = "HD64465",
-};
-
-static int __init setup_hd64465(void)
-{
- int i;
- unsigned short rev;
- unsigned short smscr;
-
- if (!MACH_HD64465)
- return 0;
-
- printk(KERN_INFO "HD64465 configured at 0x%x on irq %d(mapped into %d to %d)\n",
- CONFIG_HD64465_IOBASE,
- CONFIG_HD64465_IRQ,
- HD64465_IRQ_BASE,
- HD64465_IRQ_BASE+HD64465_IRQ_NUM-1);
-
- if (inw(HD64465_REG_SDID) != HD64465_SDID) {
- printk(KERN_ERR "HD64465 device ID not found, check base address\n");
- }
-
- rev = inw(HD64465_REG_SRR);
- printk(KERN_INFO "HD64465 hardware revision %d.%d\n", (rev >> 8) & 0xff, rev & 0xff);
-
- outw(0xffff, HD64465_REG_NIMR); /* mask all interrupts */
-
- for (i = 0; i < HD64465_IRQ_NUM ; i++) {
- irq_desc[HD64465_IRQ_BASE + i].chip = &hd64465_irq_type;
- }
-
- setup_irq(CONFIG_HD64465_IRQ, &irq0);
-
- /* wake up the UART from STANDBY at this point */
- smscr = inw(HD64465_REG_SMSCR);
- outw(smscr & (~HD64465_SMSCR_UARTST), HD64465_REG_SMSCR);
-
- /* remap IO ports for first ISA serial port to HD64465 UART */
- hd64465_port_map(0x3f8, 8, CONFIG_HD64465_IOBASE + 0x8000, 1);
-
- return 0;
-}
-module_init(setup_hd64465);