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-rw-r--r--arch/mips/sni/Makefile5
-rw-r--r--arch/mips/sni/hw-access.c70
-rw-r--r--arch/mips/sni/int-handler.S214
-rw-r--r--arch/mips/sni/io.c106
-rw-r--r--arch/mips/sni/pci.c41
-rw-r--r--arch/mips/sni/pcimt_scache.c33
-rw-r--r--arch/mips/sni/setup.c22
7 files changed, 193 insertions, 298 deletions
diff --git a/arch/mips/sni/Makefile b/arch/mips/sni/Makefile
index 84622b55f..f3bb81704 100644
--- a/arch/mips/sni/Makefile
+++ b/arch/mips/sni/Makefile
@@ -1,3 +1,4 @@
+# $Id: Makefile,v 1.3 1998/10/28 12:38:16 ralf Exp $
#
# Makefile for the SNI specific part of the kernel
#
@@ -5,8 +6,6 @@
# removes any old dependencies. DON'T put your own dependencies here
# unless it's something special (ie not a .c file).
#
-# $Id: Makefile,v 1.2 1997/12/20 13:27:14 ralf Exp $
-#
.S.s:
$(CPP) $(CFLAGS) $< -o $*.s
@@ -15,7 +14,7 @@
all: sni.o
O_TARGET := sni.o
-O_OBJS := hw-access.o int-handler.o io.o pci.o pcimt_scache.o reset.o setup.o
+O_OBJS := int-handler.o io.o pci.o pcimt_scache.o reset.o setup.o
int-handler.o: int-handler.S
diff --git a/arch/mips/sni/hw-access.c b/arch/mips/sni/hw-access.c
deleted file mode 100644
index c2c121318..000000000
--- a/arch/mips/sni/hw-access.c
+++ /dev/null
@@ -1,70 +0,0 @@
-/* $Id: hw-access.c,v 1.6 1998/06/30 00:21:59 ralf Exp $
- *
- * Low-level hardware access stuff for SNI RM200 PCI
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1996, 1997, 1998 by Ralf Baechle
- */
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/kbd_ll.h>
-#include <linux/kbdcntrlr.h>
-#include <linux/kernel.h>
-#include <linux/linkage.h>
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <asm/bootinfo.h>
-#include <asm/cachectl.h>
-#include <asm/dma.h>
-#include <asm/keyboard.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/mc146818rtc.h>
-#include <asm/pgtable.h>
-#include <asm/sni.h>
-
-#define KBD_STAT_IBF 0x02 /* Keyboard input buffer full */
-
-static unsigned char sni_read_input(void)
-{
- return inb(KBD_DATA_REG);
-}
-
-static void sni_write_output(unsigned char val)
-{
- int status;
-
- do {
- status = inb(KBD_CNTL_REG);
- } while (status & KBD_STAT_IBF);
- outb(val, KBD_DATA_REG);
-}
-
-static void sni_write_command(unsigned char val)
-{
- int status;
-
- do {
- status = inb(KBD_CNTL_REG);
- } while (status & KBD_STAT_IBF);
- outb(val, KBD_CNTL_REG);
-}
-
-static unsigned char sni_read_status(void)
-{
- return inb(KBD_STATUS_REG);
-}
-
-__initfunc(void sni_rm200_keyboard_setup(void))
-{
- kbd_read_input = sni_read_input;
- kbd_write_output = sni_write_output;
- kbd_write_command = sni_write_command;
- kbd_read_status = sni_read_status;
- request_irq(PCIMT_KEYBOARD_IRQ, keyboard_interrupt,
- 0, "keyboard", NULL);
- request_region(0x60, 16, "keyboard");
-}
diff --git a/arch/mips/sni/int-handler.S b/arch/mips/sni/int-handler.S
index 3c920954d..fbda9cb26 100644
--- a/arch/mips/sni/int-handler.S
+++ b/arch/mips/sni/int-handler.S
@@ -1,17 +1,22 @@
-/* $Id: int-handler.S,v 1.2 1997/12/01 17:57:40 ralf Exp $
+/* $Id: int-handler.S,v 1.3 1998/05/07 23:44:01 ralf Exp $
*
* SNI RM200 PCI specific interrupt handler code.
*
* Copyright (C) 1994 - 1997 by Ralf Baechle
*/
#include <asm/asm.h>
-#include <linux/config.h>
#include <asm/mipsconfig.h>
#include <asm/mipsregs.h>
#include <asm/regdef.h>
#include <asm/sni.h>
#include <asm/stackframe.h>
+/* The PCI ASIC has the nasty property that it may delay writes if it is busy.
+ As a consequence from writes that have not graduated when we exit from the
+ interrupt handler we might catch a spurious interrupt. To avoid this we
+ force the PCI ASIC to graduate all writes by executing a read from the
+ PCI bus. */
+
.set noreorder
.set noat
.align 5
@@ -20,34 +25,38 @@
CLI
.set at
- lb t0,led_cache
- addiu t0,1
- sb t0,led_cache
- sb t0,PCIMT_CSLED
+ /* Blinken light ... */
+ lb t0, led_cache
+ addiu t0, 1
+ sb t0, led_cache
+ sb t0, PCIMT_CSLED # write only register
.data
led_cache: .byte 0
.text
- mfc0 t0,CP0_STATUS
- mfc0 t1,CP0_CAUSE
- and t0,t1
-
- andi t1,t0,0x0800 # hardware interrupt 1
- bnez t1,hwint1
- andi t1,t0,0x4000 # hardware interrupt 4
- bnez t1,eth_int
-
- andi t1,t0,0x1000 # hardware interrupt 2
- bnez t1,hwint2
- andi t1,t0,0x2000 # hardware interrupt 3
- bnez t1,hwint3
- andi t1,t0,0x8000 # hardware interrupt 5
- bnez t1,hwint5
- andi t1,t0,0x0400 # hardware interrupt 0
- bnez t1,hwint0
+ mfc0 t0, CP0_STATUS
+ mfc0 t1, CP0_CAUSE
+ and t0, t1
+
+ /* The following interrupt dispatch tests for hwint 1 /
+ EISA bridge first such that the timer interrupt get the
+ highest priority. */
+ andi t1, t0, 0x0800 # hardware interrupt 1
+ bnez t1, hwint1
+ andi t1, t0, 0x4000 # hardware interrupt 4
+ bnez t1, hwint4
+
+ andi t1, t0, 0x1000 # hardware interrupt 2
+ bnez t1, hwint2
+ andi t1, t0, 0x2000 # hardware interrupt 3
+ bnez t1, hwint3
+ andi t1, t0, 0x8000 # hardware interrupt 5
+ bnez t1, hwint5
+ andi t1, t0, 0x0400 # hardware interrupt 0
+ bnez t1, hwint0
nop
- j spurious_interrupt # Nothing up ...
+ j return # spurious interrupt
nop
##############################################################################
@@ -57,146 +66,61 @@ swint1: PANIC("swint1")
/* ------------------------------------------------------------------------ */
-hwint1: lbu t0,PCIMT_CSITPEND
-
- andi t1,t0,0x20
- bnez t1,eisa_int
-
-#ifdef CONFIG_SCSI_NCR53C8XX
- andi t1,t0,0x40
- beqz t1,scsi_int
-#endif
- nop
-
- j spurious_interrupt
- nop
-
- /* ------------------------------------------------------------------------ */
-
-hwint0: lbu t0,PCIMT_CSITPEND
-
- andi t1,t0,0x01
- beqz t1,int2
+/* hwint1 deals with EISA and SCSI interrupts. */
+hwint1: lbu s0, PCIMT_CSITPEND
-go_spurious: j spurious_interrupt # we got fooled
+ andi t1, s0, 0x20
+ beqz t1, 1f
+ andi s1, s0, 0x40
+ lbu a0, PCIMT_INT_ACKNOWLEDGE # IACK cycle
+ xori t0, a0, 0xff
+ beqz t0, 1f # spurious interrupt?
nop
+ jal i8259_do_irq # call real handler
+ move a1, sp
-eisa_int: lui s0,%hi(SNI_PORT_BASE)
- li a0,0x0f
- sb a0,%lo(SNI_PORT_BASE+0x20)(s0) # poll command
- lb a0,%lo(SNI_PORT_BASE+0x20)(s0) # read result
- bgtz a0,poll_second
- andi a0,7
- beq a0,2,poll_second # cascade?
- li s1,1
- /*
- * Acknowledge first pic
- */
- lb t2,%lo(SNI_PORT_BASE+0x21)(s0)
- lui s4,%hi(cache_21)
- lb t0,%lo(cache_21)(s4)
- sllv s1,s1,a0
- or t0,s1
- sb t0,%lo(cache_21)(s4)
- sb t0,%lo(SNI_PORT_BASE+0x21)(s0)
- li t2,0x20
- sb t2,%lo(SNI_PORT_BASE+0x20)(s0)
- /*
- * Now call the real handler
- */
+1: bnez s1, 1f
+ li a0, PCIMT_IRQ_SCSI
jal do_IRQ
- move a1,sp
- /*
- * Unblock first pic
- */
- lbu t1,%lo(SNI_PORT_BASE+0x21)(s0)
- lb t1,%lo(cache_21)(s4)
- nor s1,zero,s1
- and t1,s1
- sb t1,%lo(cache_21)(s4)
- j ret_from_irq
- sb t1,%lo(SNI_PORT_BASE+0x21)(s0)
+ move a1, sp
- /*
- * Cascade interrupt from second PIC
- */
- .align 5
-poll_second: li a0,0x0f
- sb a0,%lo(SNI_PORT_BASE+0xa0)(s0) # poll command
- lb a0,%lo(SNI_PORT_BASE+0xa0)(s0) # read result
- bgtz a0,go_spurious
- andi a0,7
- /*
- * Acknowledge second pic
- */
- lbu t2,%lo(SNI_PORT_BASE+0xa1)(s0)
- lui s4,%hi(cache_A1)
- lb t3,%lo(cache_A1)(s4)
- sllv s1,s1,a0
- or t3,s1
- sb t3,%lo(cache_A1)(s4)
- sb t3,%lo(SNI_PORT_BASE+0xa1)(s0)
- li t3,0x20
- sb t3,%lo(SNI_PORT_BASE+0xa0)(s0)
- sb t3,%lo(SNI_PORT_BASE+0x20)(s0)
- /*
- * Now call the real handler
- */
- addiu a0,8
- jal do_IRQ
- move a1,sp
- /*
- * Unblock second pic
- */
- lb t1,%lo(SNI_PORT_BASE+0xa1)(s0)
- lb t1,%lo(cache_A1)(s4)
- subu t0,1
- nor s1,zero,s1
- and t1,t1,s1
- sb t1,%lo(cache_A1)(s4)
+1: lui t0, %hi(PCIMT_CSITPEND)
j ret_from_irq
- sb t1,%lo(SNI_PORT_BASE+0xa1)(s0)
-
-/*
- * ... check if we were interrupted by the Lance ...
- */
-eth_int: mfc0 s0,CP0_STATUS
- ori t0,s0,0x4000
- xori t0,0x4000
- mtc0 t0,CP0_STATUS
+ lbu zero, %lo(PCIMT_CSITPEND)(t0)
- li a0,PCIMT_IRQ_ETHERNET
- jal do_IRQ
- move a1,sp
+ /* ------------------------------------------------------------------------ */
- mtc0 s0,CP0_STATUS
+/* hwint0 should deal with MP agent, ASIC PCI, EISA NMI and debug
+ button interrupts. */
+hwint0: PANIC("Received int0 but no handler yet ...\n")
+1: j 1b
+ nop
- j ret_from_irq
+go_spurious: j spurious_interrupt # we got fooled
nop
-#ifdef CONFIG_SCSI_NCR53C8XX
+/* hwint4 is used for only the onboard PCnet 32. */
+hwint4: mfc0 s0, CP0_STATUS
+ ori t0, s0, 0x4000
+ xori t0, 0x4000
+ mtc0 t0, CP0_STATUS
-/*
- * ... check if we were interrupted by the NCR ...
- */
-scsi_int: li a0,PCIMT_IRQ_SCSI
+ li a0, PCIMT_IRQ_ETHERNET
jal do_IRQ
- move a1,sp
- j ret_from_irq
- nop
-
-#endif /* CONFIG_SCSI_NCR53C8XX */
+ move a1, sp
-pci_int: PANIC("Received PCI interrupt but no handler yet ...\n")
-1: j 1b
- nop
+ mtc0 s0, CP0_STATUS
-int2: PANIC("Received int2 but no handler yet ...\n")
-1: j 1b
+ j ret_from_irq
nop
+/* This interrupt was used for the com1 console on the first prototypes. */
hwint2: PANIC("hwint2 and no handler yet")
+
+/* hwint3 should deal with the PCI A - D interrupts. */
hwint3: PANIC("hwint3 and no handler yet")
+
+/* hwint5 is the r4k count / compare interrupt */
hwint5: PANIC("hwint5 and no handler yet")
END(sni_rm200_pci_handle_int)
diff --git a/arch/mips/sni/io.c b/arch/mips/sni/io.c
index 8a97b80a8..a59df4565 100644
--- a/arch/mips/sni/io.c
+++ b/arch/mips/sni/io.c
@@ -1,11 +1,10 @@
-/*
+/* $Id: io.c,v 1.2 1998/04/05 11:24:06 ralf Exp $
+ *
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Low level I/O functions for SNI.
- *
- * $Id: io.c,v 1.2 1998/03/27 08:53:50 ralf Exp $
*/
#include <linux/string.h>
#include <asm/mipsconfig.h>
@@ -14,46 +13,42 @@
#include <asm/spinlock.h>
#include <asm/sni.h>
-unsigned char sni_map_isa_cache;
-
-#define unused __attribute__((unused))
-
-/*
- * The PCIMT_CSMAPISA is shared by all processors; we need locking.
- *
- * XXX It's legal to use all the I/O memory access functions in interrupt
- * code, so we need to use the _irq locking stuff which may result in
- * significant IRQ latencies.
- */
-static spinlock_t csmapisa_lock unused = SPIN_LOCK_UNLOCKED;
-
/*
* Urgs... We only can see a 16mb window of the 4gb EISA address space
* at PCIMT_EISA_BASE. Maladia segmentitis ...
*
- * XXX Check out if accessing PCIMT_CSMAPISA really is slow.
- * For now assume so.
+ * To avoid locking and all the related headacke we implement this such
+ * that accessing the bus address space nests, so we're treating this
+ * correctly even for interrupts. This is going to suck seriously for
+ * the SMP members of the RM family.
+ *
+ * Making things worse the PCIMT_CSMAPISA register resides on the X bus with
+ * it's unbeatable 1.4 mb/s transfer rate.
*/
-static inline void update_isa_cache(unsigned long address)
+
+static inline void eisa_map(unsigned long address)
{
unsigned char upper;
upper = address >> 24;
- if (sni_map_isa_cache != upper) {
- sni_map_isa_cache = upper;
- *(volatile unsigned char *)PCIMT_CSMAPISA = ~upper;
- }
+ *(volatile unsigned char *)PCIMT_CSMAPISA = ~upper;
}
+#define save_eisa_map() \
+ (*(volatile unsigned char *)PCIMT_CSMAPISA)
+#define restore_eisa_map(val) \
+ do { (*(volatile unsigned char *)PCIMT_CSMAPISA) = val; } while(0)
+
static unsigned char sni_readb(unsigned long addr)
{
unsigned char res;
+ unsigned int save_map;
- spin_lock_irq(&csmapisa_lock);
- update_isa_cache(addr);
+ save_map = save_eisa_map();
+ eisa_map(addr);
addr &= 0xffffff;
res = *(volatile unsigned char *) (PCIMT_EISA_BASE + addr);
- spin_unlock_irq(&csmapisa_lock);
+ restore_eisa_map(save_map);
return res;
}
@@ -61,12 +56,13 @@ static unsigned char sni_readb(unsigned long addr)
static unsigned short sni_readw(unsigned long addr)
{
unsigned short res;
+ unsigned int save_map;
- spin_lock_irq(&csmapisa_lock);
- update_isa_cache(addr);
+ save_map = save_eisa_map();
+ eisa_map(addr);
addr &= 0xffffff;
res = *(volatile unsigned char *) (PCIMT_EISA_BASE + addr);
- spin_unlock_irq(&csmapisa_lock);
+ restore_eisa_map(save_map);
return res;
}
@@ -74,101 +70,111 @@ static unsigned short sni_readw(unsigned long addr)
static unsigned int sni_readl(unsigned long addr)
{
unsigned int res;
+ unsigned int save_map;
- spin_lock_irq(&csmapisa_lock);
- update_isa_cache(addr);
+ save_map = save_eisa_map();
+ eisa_map(addr);
addr &= 0xffffff;
res = *(volatile unsigned char *) (PCIMT_EISA_BASE + addr);
- spin_unlock_irq(&csmapisa_lock);
+ restore_eisa_map(save_map);
return res;
}
static void sni_writeb(unsigned char val, unsigned long addr)
{
- spin_lock_irq(&csmapisa_lock);
- update_isa_cache(addr);
+ unsigned int save_map;
+
+ save_map = save_eisa_map();
+ eisa_map(addr);
addr &= 0xffffff;
*(volatile unsigned char *) (PCIMT_EISA_BASE + addr) = val;
- spin_unlock_irq(&csmapisa_lock);
+ restore_eisa_map(save_map);
}
static void sni_writew(unsigned short val, unsigned long addr)
{
- spin_lock_irq(&csmapisa_lock);
- update_isa_cache(addr);
+ unsigned int save_map;
+
+ save_map = save_eisa_map();
+ eisa_map(addr);
addr &= 0xffffff;
*(volatile unsigned char *) (PCIMT_EISA_BASE + addr) = val;
- spin_unlock_irq(&csmapisa_lock);
+ restore_eisa_map(save_map);
}
static void sni_writel(unsigned int val, unsigned long addr)
{
- spin_lock_irq(&csmapisa_lock);
- update_isa_cache(addr);
+ unsigned int save_map;
+
+ save_map = save_eisa_map();
+ eisa_map(addr);
addr &= 0xffffff;
*(volatile unsigned char *) (PCIMT_EISA_BASE + addr) = val;
- spin_unlock_irq(&csmapisa_lock);
+ restore_eisa_map(save_map);
}
static void sni_memset_io(unsigned long addr, int val, unsigned long len)
{
unsigned long waddr;
+ unsigned int save_map;
+ save_map = save_eisa_map();
waddr = PCIMT_EISA_BASE | (addr & 0xffffff);
- spin_lock_irq(&csmapisa_lock);
while(len) {
unsigned long fraglen;
fraglen = (~addr + 1) & 0xffffff;
fraglen = (fraglen < len) ? fraglen : len;
- update_isa_cache(addr);
+ eisa_map(addr);
memset((char *)waddr, val, fraglen);
addr += fraglen;
waddr = waddr + fraglen - 0x1000000;
len -= fraglen;
}
- spin_unlock_irq(&csmapisa_lock);
+ restore_eisa_map(save_map);
}
static void sni_memcpy_fromio(unsigned long to, unsigned long from, unsigned long len)
{
unsigned long waddr;
+ unsigned int save_map;
+ save_map = save_eisa_map();
waddr = PCIMT_EISA_BASE | (from & 0xffffff);
- spin_lock_irq(&csmapisa_lock);
while(len) {
unsigned long fraglen;
fraglen = (~from + 1) & 0xffffff;
fraglen = (fraglen < len) ? fraglen : len;
- update_isa_cache(from);
+ eisa_map(from);
memcpy((void *)to, (void *)waddr, fraglen);
to += fraglen;
from += fraglen;
waddr = waddr + fraglen - 0x1000000;
len -= fraglen;
}
- spin_unlock_irq(&csmapisa_lock);
+ restore_eisa_map(save_map);
}
static void sni_memcpy_toio(unsigned long to, unsigned long from, unsigned long len)
{
unsigned long waddr;
+ unsigned int save_map;
+ save_map = save_eisa_map();
waddr = PCIMT_EISA_BASE | (to & 0xffffff);
- spin_lock_irq(&csmapisa_lock);
while(len) {
unsigned long fraglen;
fraglen = (~to + 1) & 0xffffff;
fraglen = (fraglen < len) ? fraglen : len;
- update_isa_cache(to);
+ eisa_map(to);
memcpy((char *)to + PCIMT_EISA_BASE, (void *)from, fraglen);
to += fraglen;
from += fraglen;
waddr = waddr + fraglen - 0x1000000;
len -= fraglen;
}
- spin_unlock_irq(&csmapisa_lock);
+ restore_eisa_map(save_map);
}
diff --git a/arch/mips/sni/pci.c b/arch/mips/sni/pci.c
index fe538d277..0da6b8004 100644
--- a/arch/mips/sni/pci.c
+++ b/arch/mips/sni/pci.c
@@ -1,4 +1,4 @@
-/* $Id: pci.c,v 1.5 1998/05/07 02:57:22 ralf Exp $
+/* $Id: pci.c,v 1.6 1998/05/07 23:44:02 ralf Exp $
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
@@ -9,6 +9,7 @@
* Copyright (C) 1997, 1998 Ralf Baechle
*/
#include <linux/config.h>
+#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/types.h>
#include <asm/byteorder.h>
@@ -28,13 +29,37 @@ do { \
static void sni_rm200_pcibios_fixup (void)
{
- /*
- * TODO: Fix PCI_INTERRUPT_LINE register for onboard cards.
- * Take care of RM300 revision D boards for where the network
- * slot became an ordinary PCI slot.
- */
- pcibios_write_config_byte(0, PCI_DEVFN(1, 0), PCI_INTERRUPT_LINE,
- PCIMT_IRQ_SCSI);
+ struct pci_dev *dev;
+
+ for (dev=pci_devices; dev; dev=dev->next) {
+ /*
+ * TODO: Take care of RM300 revision D boards for where the
+ * network slot became an ordinary PCI slot.
+ */
+ if (dev->devfn == PCI_DEVFN(1, 0)) {
+ /* Evil hack ... */
+ set_cp0_config(CONF_CM_CMASK, CONF_CM_CACHABLE_NO_WA);
+ dev->irq = PCIMT_IRQ_SCSI;
+ continue;
+ }
+ if (dev->devfn == PCI_DEVFN(2, 0)) {
+ dev->irq = PCIMT_IRQ_ETHERNET;
+ continue;
+ }
+
+ switch(dev->irq) {
+ case 1 ... 4:
+ dev->irq += PCIMT_IRQ_INTA - 1;
+ break;
+ case 0:
+ break;
+ default:
+ printk("PCI device on bus %d, dev %d, function %d "
+ "impossible interrupt configured.\n",
+ dev->bus->number, PCI_SLOT(dev->devfn),
+ PCI_SLOT(dev->devfn));
+ }
+ }
}
/*
diff --git a/arch/mips/sni/pcimt_scache.c b/arch/mips/sni/pcimt_scache.c
index feec16967..55c96b939 100644
--- a/arch/mips/sni/pcimt_scache.c
+++ b/arch/mips/sni/pcimt_scache.c
@@ -1,35 +1,38 @@
-/*
+/* $Id: pcimt_scache.c,v 1.3 1998/08/25 09:14:51 ralf Exp $
+ *
* arch/mips/sni/pcimt_scache.c
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (c) 1997 by Ralf Baechle
- *
- * $Id: pcimt_scache.c,v 1.2 1998/05/28 03:18:02 ralf Exp $
+ * Copyright (c) 1997, 1998 by Ralf Baechle
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <asm/bcache.h>
#include <asm/sni.h>
+#define cacheconf (*(volatile unsigned int *)PCIMT_CACHECONF)
+#define invspace (*(volatile unsigned int *)PCIMT_INVSPACE)
+
__initfunc(void sni_pcimt_sc_init(void))
{
- unsigned int cacheconf, sc_size;
+ unsigned int scsiz, sc_size;
- cacheconf = *(volatile unsigned int *)PCIMT_CACHECONF;
- if ((cacheconf & 7) == 0) {
- printk("No second level cache detected\n");
- printk("WARNING: not activating second level cache, "
- "tell ralf@gnu.org\n");
+ scsiz = cacheconf & 7;
+ if (scsiz == 0) {
+ printk("Second level cache is deactived.\n");
return;
}
- if ((cacheconf & 7) >= 6) {
- printk("Invalid second level cache size detected\n");
+ if (scsiz >= 6) {
+ printk("Invalid second level cache size configured, "
+ "deactivating second level cache.\n");
+ cacheconf = 0;
return;
}
-
- sc_size = 128 << (cacheconf & 7);
- printk("%dkb second level cache detected.\n", sc_size);
+
+ sc_size = 128 << scsiz;
+ printk("%dkb second level cache detected, deactivating.\n", sc_size);
+ cacheconf = 0;
}
diff --git a/arch/mips/sni/setup.c b/arch/mips/sni/setup.c
index 2f3499707..0652c171b 100644
--- a/arch/mips/sni/setup.c
+++ b/arch/mips/sni/setup.c
@@ -1,4 +1,4 @@
-/* $Id: setup.c,v 1.13 1998/08/17 13:57:45 ralf Exp $
+/* $Id: setup.c,v 1.9 1998/08/25 09:14:51 ralf Exp $
*
* Setup pointers to hardware-dependent routines.
*
@@ -17,6 +17,11 @@
#include <linux/interrupt.h>
#include <linux/timex.h>
#include <linux/pci.h>
+#include <linux/mc146818rtc.h>
+#include <linux/console.h>
+#include <linux/fb.h>
+#include <linux/pc_keyb.h>
+
#include <asm/bcache.h>
#include <asm/bootinfo.h>
#include <asm/keyboard.h>
@@ -39,7 +44,6 @@ static void no_action(int cpl, void *dev_id, struct pt_regs *regs) { }
static struct irqaction irq2 = { no_action, 0, 0, "cascade", NULL, NULL};
extern asmlinkage void sni_rm200_pci_handle_int(void);
-extern void sni_rm200_keyboard_setup(void);
extern void sni_machine_restart(char *command);
extern void sni_machine_halt(void);
@@ -47,19 +51,20 @@ extern void sni_machine_power_off(void);
extern struct ide_ops std_ide_ops;
extern struct rtc_ops std_rtc_ops;
+extern struct kbd_ops std_kbd_ops;
__initfunc(static void sni_irq_setup(void))
{
set_except_vector(0, sni_rm200_pci_handle_int);
request_region(0x20,0x20, "pic1");
request_region(0xa0,0x20, "pic2");
- setup_x86_irq(2, &irq2);
+ i8259_setup_irq(2, &irq2);
/*
* IRQ0 seems to be the irq for PC style stuff.
* I don't know how to handle the debug button interrupt, so
* don't use this button yet or bad things happen ...
*/
- set_cp0_status(ST0_IM, IE_IRQ1 | IE_IRQ4);
+ set_cp0_status(ST0_IM, IE_IRQ1 | IE_IRQ3 | IE_IRQ4);
}
void (*board_time_init)(struct irqaction *irq);
@@ -70,7 +75,7 @@ __initfunc(static void sni_rm200_pci_time_init(struct irqaction *irq))
outb_p(0x34,0x43); /* binary, mode 2, LSB/MSB, ch 0 */
outb_p(LATCH & 0xff , 0x40); /* LSB */
outb(LATCH >> 8 , 0x40); /* MSB */
- setup_x86_irq(0, irq);
+ i8259_setup_irq(0, irq);
}
unsigned char aux_device_present;
@@ -132,7 +137,6 @@ __initfunc(void sni_rm200_pci_setup(void))
irq_setup = sni_irq_setup;
mips_io_port_base = SNI_PORT_BASE;
- keyboard_setup = sni_rm200_keyboard_setup;
/*
* Setup (E)ISA I/O memory access stuff
@@ -165,6 +169,10 @@ __initfunc(void sni_rm200_pci_setup(void))
#ifdef CONFIG_BLK_DEV_IDE
ide_ops = &std_ide_ops;
#endif
-
+ conswitchp = &vga_con;
rtc_ops = &std_rtc_ops;
+ kbd_ops = &std_kbd_ops;
+#ifdef CONFIG_PSMOUSE
+ aux_device_present = 0xaa;
+#endif
}