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Commit 8669b46e authored by Paul Mackerras's avatar Paul Mackerras
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Merge bk://24.221.152.185/linux-2.5-openpic 

into cargo.(none):/home/paulus/kernel/for-linus-ppc
parents afae6f7c 73926916
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Showing with 217 additions and 149 deletions
arch/ppc/config.in
View file @ 8669b46e
......@@ -123,10 +123,16 @@ if [ "$CONFIG_6xx" = "y" -a "$CONFIG_8260" = "n" ]; then
SBS-K2 CONFIG_K2 \
Synergy-Gemini CONFIG_GEMINI \
Zynx-ZX4500 CONFIG_ZX4500" CHRP/PowerMac/PReP
fi
if [ "$CONFIG_PCORE" = "y" -o "$CONFIG_POWERPMC250" = "y" ]; then
if [ "$CONFIG_SANDPOINT" = "y" ]; then
bool ' Sandpoint X3' CONFIG_SANDPOINT_X3
fi
if [ "$CONFIG_PCORE" = "y" -o "$CONFIG_POWERPMC250" = "y" ]; then
define_bool CONFIG_FORCE y
fi
if [ "$CONFIG_LOPEC" = "y" -o "$CONFIG_SANDPOINT_X3" = "y" ]; then
define_bool CONFIG_EPIC_SERIAL_MODE y
fi
fi
if [ "$CONFIG_FORCE" = "y" -o "$CONFIG_MENF1" = "y" \
......@@ -147,13 +153,6 @@ if [ "$CONFIG_MVME5100" = "y" ]; then
bool 'MVME5100 configured with an IPMC761' CONFIG_MVME5100_IPMC761_PRESENT
fi
if [ "$CONFIG_SANDPOINT" = "y" ]; then
bool 'Sandpoint X3' CONFIG_SANDPOINT_X3
if [ "$CONFIG_SANDPOINT_X3" = "y" ]; then
define_bool CONFIG_EPIC_SERIAL_MODE y
fi
fi
if [ "$CONFIG_SPRUCE" = "y" ]; then
bool 'Spruce baud clock support' CONFIG_SPRUCE_BAUD_33M
fi
......@@ -620,9 +619,10 @@ fi
if [ "$CONFIG_ALL_PPC" = "y" ]; then
bool 'Support for early boot text console (BootX or OpenFirmware only)' CONFIG_BOOTX_TEXT
fi
if [ "$CONFIG_MCPN765" = "y" -o "$CONFIG_SANDPOINT" = "y" \
-o "$CONFIG_ZX4500" = "y" -o "$CONFIG_PRPMC800" = "y" \
-o "$CONFIG_4xx" = "y" -o "$CONFIG_GT64260" = "y" ]; then
if [ "$CONFIG_4xx" = "y" -o "$CONFIG_GT64260" = "y" \
-o "$CONFIG_LOPEC" = "y" -o "$CONFIG_MCPN765" = "y" \
-o "$CONFIG_PRPMC800" = "y" -o "$CONFIG_SANDPOINT" = "y" \
-o "$CONFIG_ZX4500" = "y" ]; then
bool 'Support for early boot texts over serial port' CONFIG_SERIAL_TEXT_DEBUG
fi
endmenu
arch/ppc/kernel/i8259.c
View file @ 8669b46e
......@@ -11,7 +11,7 @@
#include <asm/io.h>
#include <asm/i8259.h>
static volatile char *pci_intack; /* RO, gives us the irq vector */
static volatile unsigned char *pci_intack; /* RO, gives us the irq vector */
unsigned char cached_8259[2] = { 0xff, 0xff };
#define cached_A1 (cached_8259[0])
......@@ -24,13 +24,13 @@ int i8259_pic_irq_offset;
/* Acknowledge the irq using the PCI host bridge's interrupt acknowledge
* feature. (Polling is somehow broken on some IBM and Motorola PReP boxes.)
*/
int i8259_irq(void)
int i8259_irq(struct pt_regs *regs)
{
int irq;
spin_lock/*_irqsave*/(&i8259_lock/*, flags*/);
irq = *pci_intack & 0xff;
irq = *pci_intack;
if (irq==7) {
/*
* This may be a spurious interrupt.
......@@ -171,6 +171,10 @@ static struct resource pic_edgectrl_iores = {
"8259 edge control", 0x4d0, 0x4d1, IORESOURCE_BUSY
};
/* i8259_init()
* intack_addr - PCI interrupt acknowledge (real) address which will return
* the active irq from the 8259
*/
void __init i8259_init(long intack_addr)
{
unsigned long flags;
......@@ -205,6 +209,9 @@ void __init i8259_init(long intack_addr)
request_resource(&ioport_resource, &pic2_iores);
request_resource(&ioport_resource, &pic_edgectrl_iores);
if (intack_addr)
/* XXX remove me after board maintainers fix their i8259_init calls */
if (intack_addr == 0)
panic("You must supply a PCI interrupt acknowledge address to i8259_init()\n");
pci_intack = ioremap(intack_addr, 1);
}
arch/ppc/kernel/open_pic.c
View file @ 8669b46e
......@@ -34,6 +34,11 @@
void* OpenPIC_Addr;
static volatile struct OpenPIC *OpenPIC = NULL;
/*
* We define OpenPIC_InitSenses table thusly:
* bit 0x1: sense, 0 for edge and 1 for level.
* bit 0x2: polarity, 0 for negative, 1 for positive.
*/
u_int OpenPIC_NumInitSenses __initdata = 0;
u_char *OpenPIC_InitSenses __initdata = NULL;
extern int use_of_interrupt_tree;
......@@ -41,16 +46,12 @@ extern int use_of_interrupt_tree;
static u_int NumProcessors;
static u_int NumSources;
static int open_pic_irq_offset;
static volatile unsigned char* chrp_int_ack_special;
static volatile OpenPIC_Source *ISR[NR_IRQS];
/* Global Operations */
static void openpic_disable_8259_pass_through(void);
static void openpic_set_priority(u_int pri);
static void openpic_set_spurious(u_int vector);
static void openpic_enable_sie(void);
static void openpic_eicr_set_clk(u_int clkval);
static void openpic_eicr_set_clk(u_int clkval);
#ifdef CONFIG_SMP
/* Interprocessor Interrupts */
......@@ -73,7 +74,6 @@ static void openpic_mapirq(u_int irq, u_int cpumask, u_int keepmask);
* These functions are not used but the code is kept here
* for completeness and future reference.
*/
static void openpic_reset(void);
#ifdef notused
static void openpic_enable_8259_pass_through(void);
static u_int openpic_get_priority(void);
......@@ -263,6 +263,31 @@ static void openpic_safe_writefield_IPI(volatile u_int *addr, u_int mask, u_int
}
#endif /* CONFIG_SMP */
#if defined(CONFIG_EPIC_SERIAL_MODE) || defined(CONFIG_PMAC_PBOOK)
static void openpic_reset(void)
{
openpic_setfield(&OpenPIC->Global.Global_Configuration0,
OPENPIC_CONFIG_RESET);
while (openpic_readfield(&OpenPIC->Global.Global_Configuration0,
OPENPIC_CONFIG_RESET))
mb();
}
#endif
#ifdef CONFIG_EPIC_SERIAL_MODE
static void openpic_enable_sie(void)
{
openpic_setfield(&OpenPIC->Global.Global_Configuration1,
OPENPIC_EICR_SIE);
}
static void openpic_eicr_set_clk(u_int clkval)
{
openpic_writefield(&OpenPIC->Global.Global_Configuration1,
OPENPIC_EICR_S_CLK_MASK, (clkval << 28));
}
#endif
void openpic_set_sources(int first_irq, int num_irqs, void *first_ISR)
{
volatile OpenPIC_Source *src = first_ISR;
......@@ -277,8 +302,7 @@ void openpic_set_sources(int first_irq, int num_irqs, void *first_ISR)
ISR[i] = src;
}
void __init openpic_init(int main_pic, int offset, unsigned char* chrp_ack,
int programmer_switch_irq)
void __init openpic_init(int main_pic, int offset, int programmer_switch_irq)
{
u_int t, i;
u_int timerfreq;
......@@ -331,7 +355,6 @@ void __init openpic_init(int main_pic, int offset, unsigned char* chrp_ack,
return;
open_pic_irq_offset = offset;
chrp_int_ack_special = (volatile unsigned char*)chrp_ack;
/* Initialize timer interrupts */
if ( ppc_md.progress ) ppc_md.progress("openpic timer",0x3ba);
......@@ -359,14 +382,8 @@ void __init openpic_init(int main_pic, int offset, unsigned char* chrp_ack,
openpic_set_priority(0xf);
/* SIOint (8259 cascade) is special */
if (offset) {
openpic_initirq(0, 8, offset, 1, 1);
openpic_mapirq(0, 1<<0, 0);
}
/* Init all external sources */
for (i = 1; i < NumSources; i++) {
/* Init all external sources, including possibly the cascade. */
for (i = 0; i < NumSources; i++) {
int pri, sense;
if (ISR[i] == 0)
......@@ -376,12 +393,18 @@ void __init openpic_init(int main_pic, int offset, unsigned char* chrp_ack,
openpic_disable_irq(i+offset);
pri = (i == programmer_switch_irq)? 9: 8;
/*
* We find the vale from either the InitSenses table
* or assume a negative polarity level interrupt.
*/
sense = (i < OpenPIC_NumInitSenses)? OpenPIC_InitSenses[i]: 1;
if (sense)
if ((sense & IRQ_SENSE_MASK) == 1)
irq_desc[i+offset].status = IRQ_LEVEL;
/* Enabled, Priority 8 or 9 */
openpic_initirq(i, pri, i+offset, !sense, sense);
openpic_initirq(i, pri, i+offset, (sense & IRQ_POLARITY_MASK),
(sense & IRQ_SENSE_MASK));
/* Processor 0 */
openpic_mapirq(i, 1<<0, 0);
}
......@@ -400,40 +423,16 @@ void __init openpic_init(int main_pic, int offset, unsigned char* chrp_ack,
"82c59 cascade", NULL))
printk("Unable to get OpenPIC IRQ 0 for cascade\n");
}
#ifdef CONFIG_EPIC_SERIAL_MODE
openpic_disable_8259_pass_through();
#ifdef CONFIG_EPIC_SERIAL_MODE
openpic_eicr_set_clk(7); /* Slowest value until we know better */
openpic_enable_sie();
openpic_set_priority(0);
#else
openpic_disable_8259_pass_through();
openpic_set_priority(0);
#endif
openpic_set_priority(0);
if (ppc_md.progress) ppc_md.progress("openpic exit",0x222);
}
static void openpic_reset(void)
{
openpic_setfield(&OpenPIC->Global.Global_Configuration0,
OPENPIC_CONFIG_RESET);
while (openpic_readfield(&OpenPIC->Global.Global_Configuration0,
OPENPIC_CONFIG_RESET))
mb();
}
static void openpic_enable_sie(void)
{
openpic_setfield(&OpenPIC->Global.Global_Configuration1,
OPENPIC_EICR_SIE);
}
static void openpic_eicr_set_clk(u_int clkval)
{
openpic_writefield(&OpenPIC->Global.Global_Configuration1,
OPENPIC_EICR_S_CLK_MASK, (clkval << 28));
}
#ifdef notused
static void openpic_enable_8259_pass_through(void)
{
......@@ -533,7 +532,9 @@ void openpic_reset_processor_phys(u_int mask)
openpic_write(&OpenPIC->Global.Processor_Initialization, mask);
}
#if defined(CONFIG_SMP) || defined(CONFIG_PMAC_PBOOK)
static spinlock_t openpic_setup_lock = SPIN_LOCK_UNLOCKED;
#endif
#ifdef CONFIG_SMP
/*
......@@ -812,14 +813,8 @@ openpic_get_irq(struct pt_regs *regs)
/* Yep - because openpic !=> i8259, for one thing. -VAL */
if (open_pic_irq_offset && irq == open_pic_irq_offset)
{
/*
* This magic address generates a PCI IACK cycle.
*/
if ( chrp_int_ack_special )
irq = *chrp_int_ack_special;
#ifndef CONFIG_GEMINI
else
irq = i8259_poll();
irq = i8259_irq(regs); /* get IRQ from cascade */
#endif
openpic_eoi();
}
......
arch/ppc/kernel/prom.c
View file @ 8669b46e
......@@ -773,7 +773,12 @@ prom_get_irq_senses(unsigned char *senses, int off, int max)
for (j = 0; j < np->n_intrs; j++) {
i = np->intrs[j].line;
if (i >= off && i < max)
senses[i-off] = np->intrs[j].sense;
if (np->intrs[j].sense == 1)
senses[i-off] = (IRQ_SENSE_LEVEL
| IRQ_POLARITY_NEGATIVE);
else
senses[i-off] = (IRQ_SENSE_EDGE
| IRQ_POLARITY_POSITIVE);
}
}
}
......
arch/ppc/platforms/chrp_setup.c
View file @ 8669b46e
......@@ -386,7 +386,7 @@ void __init chrp_init_IRQ(void)
{
struct device_node *np;
int i;
unsigned char* chrp_int_ack_special = 0;
unsigned long chrp_int_ack;
unsigned char init_senses[NR_IRQS - NUM_8259_INTERRUPTS];
int nmi_irq = -1;
#if defined(CONFIG_VT) && defined(CONFIG_ADB_KEYBOARD) && defined(XMON)
......@@ -396,14 +396,14 @@ void __init chrp_init_IRQ(void)
for (np = find_devices("pci"); np != NULL; np = np->next) {
unsigned int *addrp = (unsigned int *)
get_property(np, "8259-interrupt-acknowledge", NULL);
if (addrp == NULL)
continue;
chrp_int_ack_special = (unsigned char *)
ioremap(addrp[prom_n_addr_cells(np)-1], 1);
chrp_int_ack = addrp[prom_n_addr_cells(np)-1];
break;
}
if (np == NULL)
printk("Cannot find pci to get ack address\n");
printk(KERN_ERR "Cannot find PCI interrupt acknowledge address\n");
chrp_find_openpic();
......@@ -411,11 +411,11 @@ void __init chrp_init_IRQ(void)
OpenPIC_InitSenses = init_senses;
OpenPIC_NumInitSenses = NR_IRQS - NUM_8259_INTERRUPTS;
openpic_init(1, NUM_8259_INTERRUPTS, chrp_int_ack_special, nmi_irq);
openpic_init(1, NUM_8259_INTERRUPTS, nmi_irq);
for (i = 0; i < NUM_8259_INTERRUPTS; i++)
irq_desc[i].handler = &i8259_pic;
i8259_init(0);
i8259_init(chrp_int_ack);
#if defined(CONFIG_VT) && defined(CONFIG_ADB_KEYBOARD) && defined(XMON)
/* see if there is a keyboard in the device tree
......
arch/ppc/platforms/lopec_setup.c
View file @ 8669b46e
......@@ -6,7 +6,7 @@
* Author: Dan Cox
* danc@mvista.com
*
* Copyright 2001 MontaVista Software Inc.
* Copyright 2001-2002 MontaVista Software Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
......@@ -44,21 +44,35 @@
#include <asm/bootinfo.h>
#include <asm/mpc10x.h>
#define LOPEC_SIO_IRQ 16
#define LOPEC_SYSSTAT1 0xffe00000
extern void lopec_find_bridges(void);
static u_char lopec_openpic_initsenses[32] __initdata = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 1, 0, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1
/*
* Define all of the IRQ senses and polarities. Taken from the
* LoPEC Programmer's Reference Guide.
*/
static u_char lopec_openpic_initsenses[16] __initdata = {
(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* IRQ 0 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ 1 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* IRQ 2 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ 3 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* IRQ 4 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* IRQ 5 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ 6 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ 7 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ 8 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ 9 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ 10 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ 11 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ 12 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* IRQ 13 */
(IRQ_SENSE_EDGE | IRQ_POLARITY_NEGATIVE), /* IRQ 14 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE) /* IRQ 15 */
};
static int
lopec_show_cpuinfo(struct seq_file *m)
{
seq_printf(m, "machine\t\t: Motorola LoPec\n");
seq_printf(m, "machine\t\t: Motorola LoPEC\n");
return 0;
}
......@@ -74,6 +88,7 @@ lopec_irq_cannonicalize(u32 irq)
static void
lopec_restart(char *cmd)
{
#define LOPEC_SYSSTAT1 0xffe00000
/* force a hard reset, if possible */
unsigned char reg = *((unsigned char *) LOPEC_SYSSTAT1);
reg |= 0x80;
......@@ -81,6 +96,7 @@ lopec_restart(char *cmd)
__cli();
while(1);
#undef LOPEC_SYSSTAT1
}
static void
......@@ -96,27 +112,6 @@ lopec_power_off(void)
lopec_halt();
}
static int
lopec_get_irq(struct pt_regs *regs)
{
int irq, cascade_irq;
irq = openpic_irq();
if (irq == LOPEC_SIO_IRQ) {
cascade_irq = i8259_poll();
if (cascade_irq != -1) {
irq = cascade_irq;
openpic_eoi();
}
}
else if (irq == OPENPIC_VEC_SPURIOUS)
irq = -1;
return irq;
}
#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
int lopec_ide_ports_known = 0;
static ide_ioreg_t lopec_ide_regbase[MAX_HWIFS];
......@@ -202,24 +197,41 @@ lopec_init_IRQ(void)
{
int i;
/*
* Provide the open_pic code with the correct table of interrupts.
*/
OpenPIC_InitSenses = lopec_openpic_initsenses;
OpenPIC_NumInitSenses = sizeof(lopec_openpic_initsenses);
openpic_init(1, 0, NULL, -1);
/*
* We need to tell openpic_set_sources where things actually are.
* mpc10x_common will setup OpenPIC_Addr at ioremap(EUMB phys base +
* EPIC offset (0x40000)); The EPIC IRQ Register Address Map -
* Interrupt Source Configuration Registers gives these numbers
* as offsets starting at 0x50200, we need to adjust occordinly.
*/
/* Map serial interrupts 0-15 */
openpic_set_sources(0, 16, OpenPIC_Addr + 0x10200);
/* Skip reserved space and map i2c and DMA Ch[01] */
openpic_set_sources(16, 3, OpenPIC_Addr + 0x11020);
/* Skip reserved space and map Message Unit Interrupt (I2O) */
openpic_set_sources(19, 1, OpenPIC_Addr + 0x110C0);
openpic_init(1, NUM_8259_INTERRUPTS, -1);
/* Map i8259 interrupts */
for(i = 0; i < NUM_8259_INTERRUPTS; i++)
irq_desc[i].handler = &i8259_pic;
if (request_irq(LOPEC_SIO_IRQ, no_action, SA_INTERRUPT,
"8259 cascade to EPIC", NULL)) {
printk("Unable to get EPIC %d for cascade.\n",
LOPEC_SIO_IRQ);
}
i8259_init(NULL);
/*
* The EPIC allows for a read in the range of 0xFEF00000 ->
* 0xFEFFFFFF to generate a PCI interrupt-acknowledge transaction.
*/
i8259_init(0xfef00000);
}
static void __init
lopec_init2(void)
void __init
lopec_request_io(void)
{
outb(0x00, 0x4d0);
outb(0xc0, 0x4d1);
......@@ -232,6 +244,8 @@ lopec_init2(void)
request_region(0xc0, 0x20, "dma2");
}
arch_initcall(lopec_request_io);
static void __init
lopec_map_io(void)
{
......@@ -255,10 +269,47 @@ lopec_set_bat(void)
: "=r" (batu), "=r" (batl));
}
#ifdef CONFIG_SERIAL_TEXT_DEBUG
#include <linux/serial.h>
#include <linux/serialP.h>
#include <linux/serial_reg.h>
#include <asm/serial.h>
static struct serial_state rs_table[RS_TABLE_SIZE] = {
SERIAL_PORT_DFNS /* Defined in <asm/serial.h> */
};
volatile unsigned char *com_port;
volatile unsigned char *com_port_lsr;
static void
serial_writechar(char c)
{
while ((*com_port_lsr & UART_LSR_THRE) == 0)
;
*com_port = c;
}
void
lopec_progress(char *s, unsigned short hex)
{
volatile char c;
com_port = (volatile unsigned char *) rs_table[0].port;
com_port_lsr = com_port + UART_LSR;
while ((c = *s++) != 0)
serial_writechar(c);
/* Most messages don't have a newline in them */
serial_writechar('\n');
serial_writechar('\r');
}
#endif /* CONFIG_SERIAL_TEXT_DEBUG */
static unsigned long __init
lopec_find_end_of_memory(void)
{
lopec_set_bat();
return mpc10x_get_mem_size(MPC10X_MEM_MAP_B);
}
......@@ -281,7 +332,7 @@ lopec_setup_arch(void)
else
#elif defined(CONFIG_ROOT_NFS)
ROOT_DEV = to_kdev_t(0x00ff);
#elif defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_ID_MODULE)
#elif defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
ROOT_DEV = to_kdev_t(0x0301);
#else
ROOT_DEV = to_kdev_t(0x0801);
......@@ -297,6 +348,7 @@ platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
unsigned long r6, unsigned long r7)
{
parse_bootinfo(find_bootinfo());
lopec_set_bat();
isa_io_base = MPC10X_MAPB_ISA_IO_BASE;
isa_mem_base = MPC10X_MAPB_ISA_MEM_BASE;
......@@ -309,8 +361,7 @@ platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
ppc_md.show_cpuinfo = lopec_show_cpuinfo;
ppc_md.irq_cannonicalize = lopec_irq_cannonicalize;
ppc_md.init_IRQ = lopec_init_IRQ;
ppc_md.get_irq = lopec_get_irq;
ppc_md.init = lopec_init2;
ppc_md.get_irq = openpic_get_irq;
ppc_md.restart = lopec_restart;
ppc_md.power_off = lopec_power_off;
......@@ -332,4 +383,7 @@ platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
ppc_ide_md.default_io_base = lopec_ide_default_io_base;
ppc_ide_md.ide_init_hwif = lopec_ide_init_hwif_ports;
#endif
#ifdef CONFIG_SERIAL_TEXT_DEBUG
ppc_md.progress = lopec_progress;
#endif
}
arch/ppc/platforms/pmac_pic.c
View file @ 8669b46e
......@@ -373,7 +373,7 @@ pmac_pic_init(void)
ppc_md.get_irq = openpic_get_irq;
OpenPIC_Addr = ioremap(irqctrler->addrs[0].address,
irqctrler->addrs[0].size);
openpic_init(1, 0, 0, nmi_irq);
openpic_init(1, 0, nmi_irq);
#ifdef CONFIG_XMON
if (nmi_irq >= 0)
request_irq(nmi_irq, xmon_irq, 0,
......
arch/ppc/platforms/prep_pci.c
View file @ 8669b46e
......@@ -666,21 +666,21 @@ static struct pci_ops prep_pci_ops =
#define MOT_PROC2_BIT 0x800
static u_char mvme2600_openpic_initsenses[] __initdata = {
1, /* MVME2600_INT_SIO */
0, /* MVME2600_INT_FALCN_ECC_ERR */
1, /* MVME2600_INT_PCI_ETHERNET */
1, /* MVME2600_INT_PCI_SCSI */
1, /* MVME2600_INT_PCI_GRAPHICS */
1, /* MVME2600_INT_PCI_VME0 */
1, /* MVME2600_INT_PCI_VME1 */
1, /* MVME2600_INT_PCI_VME2 */
1, /* MVME2600_INT_PCI_VME3 */
1, /* MVME2600_INT_PCI_INTA */
1, /* MVME2600_INT_PCI_INTB */
1, /* MVME2600_INT_PCI_INTC */
1, /* MVME2600_INT_PCI_INTD */
1, /* MVME2600_INT_LM_SIG0 */
1, /* MVME2600_INT_LM_SIG1 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* MVME2600_INT_SIO */
(IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE), /* MVME2600_INT_FALCN_ECC_ERR */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* MVME2600_INT_PCI_ETHERNET */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* MVME2600_INT_PCI_SCSI */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* MVME2600_INT_PCI_GRAPHICS */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* MVME2600_INT_PCI_VME0 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* MVME2600_INT_PCI_VME1 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* MVME2600_INT_PCI_VME2 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* MVME2600_INT_PCI_VME3 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* MVME2600_INT_PCI_INTA */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* MVME2600_INT_PCI_INTB */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* MVME2600_INT_PCI_INTC */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* MVME2600_INT_PCI_INTD */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* MVME2600_INT_LM_SIG0 */
(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* MVME2600_INT_LM_SIG1 */
};
#define MOT_RAVEN_PRESENT 0x1
......
arch/ppc/platforms/prep_setup.c
View file @ 8669b46e
......@@ -685,19 +685,13 @@ prep_irq_cannonicalize(u_int irq)
}
}
static int __prep
prep_get_irq(struct pt_regs *regs)
{
return i8259_irq();
}
static void __init
prep_init_IRQ(void)
{
int i;
if (OpenPIC_Addr != NULL)
openpic_init(1, NUM_8259_INTERRUPTS, 0, -1);
openpic_init(1, NUM_8259_INTERRUPTS, -1);
for ( i = 0 ; i < NUM_8259_INTERRUPTS ; i++ )
irq_desc[i].handler = &i8259_pic;
i8259_init(0xbffffff0); /* PCI interrupt ack address for MPC105 and 106 */
......@@ -867,7 +861,7 @@ prep_init(unsigned long r3, unsigned long r4, unsigned long r5,
ppc_md.irq_cannonicalize = prep_irq_cannonicalize;
ppc_md.init_IRQ = prep_init_IRQ;
/* this gets changed later on if we have an OpenPIC -- Cort */
ppc_md.get_irq = prep_get_irq;
ppc_md.get_irq = i8259_irq;
ppc_md.init = prep_init2;
ppc_md.restart = prep_restart;
......
include/asm-ppc/i8259.h
View file @ 8669b46e
......@@ -10,7 +10,7 @@
extern struct hw_interrupt_type i8259_pic;
void i8259_init(long);
int i8259_irq(void);
int i8259_irq(struct pt_regs *regs);
int i8259_poll(void);
#endif /* _PPC_KERNEL_i8259_H */
include/asm-ppc/open_pic.h
View file @ 8669b46e
......@@ -28,6 +28,19 @@
#define OPENPIC_VEC_IPI 72 /* and up */
#define OPENPIC_VEC_SPURIOUS 127
/*
* For the OpenPIC_InitSenses table, we include both the sense
* and polarity in one number and mask out the value we want
* later on. -- Tom
*/
#define IRQ_SENSE_MASK 0x1
#define IRQ_SENSE_LEVEL 0x1
#define IRQ_SENSE_EDGE 0x0
#define IRQ_POLARITY_MASK 0x2
#define IRQ_POLARITY_POSITIVE 0x2
#define IRQ_POLARITY_NEGATIVE 0x0
/* OpenPIC IRQ controller structure */
extern struct hw_interrupt_type open_pic;
......@@ -42,7 +55,7 @@ extern void* OpenPIC_Addr;
/* Exported functions */
extern void openpic_set_sources(int first_irq, int num_irqs, void *isr);
extern void openpic_init(int, int, unsigned char *, int);
extern void openpic_init(int, int, int);
extern u_int openpic_irq(void);
extern void openpic_eoi(void);
extern void openpic_request_IPIs(void);
......
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