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android_kernel_samsung_msm8976/arch/sh/boards/mpc1211/setup.c
Paul Mundt 82f81f4784 sh: Kill off machvec aliases. 
We now throw all of the machvecs in to .machvec.init and either
select one on the command line, or copy out the first (and
usually only) one to sh_mv. The rest are freed as usual.

This gets rid of all of the silly sh_mv aliasing and makes the
selection explicit rather than link-order dependent.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08 02:43:39 +00:00

347 lines
7.6 KiB
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/*
* linux/arch/sh/boards/mpc1211/setup.c
*
* Copyright (C) 2002 Saito.K & Jeanne, Fujii.Y
*
*/
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/hdreg.h>
#include <linux/ide.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <asm/io.h>
#include <asm/machvec.h>
#include <asm/mpc1211/mpc1211.h>
#include <asm/mpc1211/pci.h>
#include <asm/mpc1211/m1543c.h>
/* ALI15X3 SMBus address offsets */
#define SMBHSTSTS (0 + 0x3100)
#define SMBHSTCNT (1 + 0x3100)
#define SMBHSTSTART (2 + 0x3100)
#define SMBHSTCMD (7 + 0x3100)
#define SMBHSTADD (3 + 0x3100)
#define SMBHSTDAT0 (4 + 0x3100)
#define SMBHSTDAT1 (5 + 0x3100)
#define SMBBLKDAT (6 + 0x3100)
/* Other settings */
#define MAX_TIMEOUT 500 /* times 1/100 sec */
/* ALI15X3 command constants */
#define ALI15X3_ABORT 0x04
#define ALI15X3_T_OUT 0x08
#define ALI15X3_QUICK 0x00
#define ALI15X3_BYTE 0x10
#define ALI15X3_BYTE_DATA 0x20
#define ALI15X3_WORD_DATA 0x30
#define ALI15X3_BLOCK_DATA 0x40
#define ALI15X3_BLOCK_CLR 0x80
/* ALI15X3 status register bits */
#define ALI15X3_STS_IDLE 0x04
#define ALI15X3_STS_BUSY 0x08
#define ALI15X3_STS_DONE 0x10
#define ALI15X3_STS_DEV 0x20 /* device error */
#define ALI15X3_STS_COLL 0x40 /* collision or no response */
#define ALI15X3_STS_TERM 0x80 /* terminated by abort */
#define ALI15X3_STS_ERR 0xE0 /* all the bad error bits */
static void __init pci_write_config(unsigned long busNo,
unsigned long devNo,
unsigned long fncNo,
unsigned long cnfAdd,
unsigned long cnfData)
{
ctrl_outl((0x80000000
+ ((busNo & 0xff) << 16)
+ ((devNo & 0x1f) << 11)
+ ((fncNo & 0x07) << 8)
+ (cnfAdd & 0xfc)), PCIPAR);
ctrl_outl(cnfData, PCIPDR);
}
/*
Initialize IRQ setting
*/
static unsigned char m_irq_mask = 0xfb;
static unsigned char s_irq_mask = 0xff;
static void disable_mpc1211_irq(unsigned int irq)
{
if( irq < 8) {
m_irq_mask |= (1 << irq);
outb(m_irq_mask,I8259_M_MR);
} else {
s_irq_mask |= (1 << (irq - 8));
outb(s_irq_mask,I8259_S_MR);
}
}
static void enable_mpc1211_irq(unsigned int irq)
{
if( irq < 8) {
m_irq_mask &= ~(1 << irq);
outb(m_irq_mask,I8259_M_MR);
} else {
s_irq_mask &= ~(1 << (irq - 8));
outb(s_irq_mask,I8259_S_MR);
}
}
static inline int mpc1211_irq_real(unsigned int irq)
{
int value;
int irqmask;
if ( irq < 8) {
irqmask = 1<<irq;
outb(0x0b,I8259_M_CR); /* ISR register */
value = inb(I8259_M_CR) & irqmask;
outb(0x0a,I8259_M_CR); /* back ro the IPR reg */
return value;
}
irqmask = 1<<(irq - 8);
outb(0x0b,I8259_S_CR); /* ISR register */
value = inb(I8259_S_CR) & irqmask;
outb(0x0a,I8259_S_CR); /* back ro the IPR reg */
return value;
}
static void mask_and_ack_mpc1211(unsigned int irq)
{
if(irq < 8) {
if(m_irq_mask & (1<<irq)){
if(!mpc1211_irq_real(irq)){
atomic_inc(&irq_err_count)
printk("spurious 8259A interrupt: IRQ %x\n",irq);
}
} else {
m_irq_mask |= (1<<irq);
}
inb(I8259_M_MR); /* DUMMY */
outb(m_irq_mask,I8259_M_MR); /* disable */
outb(0x60+irq,I8259_M_CR); /* EOI */
} else {
if(s_irq_mask & (1<<(irq - 8))){
if(!mpc1211_irq_real(irq)){
atomic_inc(&irq_err_count);
printk("spurious 8259A interrupt: IRQ %x\n",irq);
}
} else {
s_irq_mask |= (1<<(irq - 8));
}
inb(I8259_S_MR); /* DUMMY */
outb(s_irq_mask,I8259_S_MR); /* disable */
outb(0x60+(irq-8),I8259_S_CR); /* EOI */
outb(0x60+2,I8259_M_CR);
}
}
static void end_mpc1211_irq(unsigned int irq)
{
enable_mpc1211_irq(irq);
}
static unsigned int startup_mpc1211_irq(unsigned int irq)
{
enable_mpc1211_irq(irq);
return 0;
}
static void shutdown_mpc1211_irq(unsigned int irq)
{
disable_mpc1211_irq(irq);
}
static struct hw_interrupt_type mpc1211_irq_type = {
.typename = "MPC1211-IRQ",
.startup = startup_mpc1211_irq,
.shutdown = shutdown_mpc1211_irq,
.enable = enable_mpc1211_irq,
.disable = disable_mpc1211_irq,
.ack = mask_and_ack_mpc1211,
.end = end_mpc1211_irq
};
static void make_mpc1211_irq(unsigned int irq)
{
irq_desc[irq].chip = &mpc1211_irq_type;
irq_desc[irq].status = IRQ_DISABLED;
irq_desc[irq].action = 0;
irq_desc[irq].depth = 1;
disable_mpc1211_irq(irq);
}
int mpc1211_irq_demux(int irq)
{
unsigned int poll;
if( irq == 2 ) {
outb(0x0c,I8259_M_CR);
poll = inb(I8259_M_CR);
if(poll & 0x80) {
irq = (poll & 0x07);
}
if( irq == 2) {
outb(0x0c,I8259_S_CR);
poll = inb(I8259_S_CR);
irq = (poll & 0x07) + 8;
}
}
return irq;
}
static void __init init_mpc1211_IRQ(void)
{
int i;
/*
* Super I/O (Just mimic PC):
* 1: keyboard
* 3: serial 1
* 4: serial 0
* 5: printer
* 6: floppy
* 8: rtc
* 10: lan
* 12: mouse
* 14: ide0
* 15: ide1
*/
pci_write_config(0,0,0,0x54, 0xb0b0002d);
outb(0x11, I8259_M_CR); /* mater icw1 edge trigger */
outb(0x11, I8259_S_CR); /* slave icw1 edge trigger */
outb(0x20, I8259_M_MR); /* m icw2 base vec 0x08 */
outb(0x28, I8259_S_MR); /* s icw2 base vec 0x70 */
outb(0x04, I8259_M_MR); /* m icw3 slave irq2 */
outb(0x02, I8259_S_MR); /* s icw3 slave id */
outb(0x01, I8259_M_MR); /* m icw4 non buf normal eoi*/
outb(0x01, I8259_S_MR); /* s icw4 non buf normal eo1*/
outb(0xfb, I8259_M_MR); /* disable irq0--irq7 */
outb(0xff, I8259_S_MR); /* disable irq8--irq15 */
for ( i=0; i < 16; i++) {
if(i != 2) {
make_mpc1211_irq(i);
}
}
}
static void delay1000(void)
{
int i;
for (i=0; i<1000; i++)
ctrl_delay();
}
static int put_smb_blk(unsigned char *p, int address, int command, int no)
{
int temp;
int timeout;
int i;
outb(0xff, SMBHSTSTS);
temp = inb(SMBHSTSTS);
for (timeout = 0; (timeout < MAX_TIMEOUT) && !(temp & ALI15X3_STS_IDLE); timeout++) {
delay1000();
temp = inb(SMBHSTSTS);
}
if (timeout >= MAX_TIMEOUT){
return -1;
}
outb(((address & 0x7f) << 1), SMBHSTADD);
outb(0xc0, SMBHSTCNT);
outb(command & 0xff, SMBHSTCMD);
outb(no & 0x1f, SMBHSTDAT0);
for(i = 1; i <= no; i++) {
outb(*p++, SMBBLKDAT);
}
outb(0xff, SMBHSTSTART);
temp = inb(SMBHSTSTS);
for (timeout = 0; (timeout < MAX_TIMEOUT) && !(temp & (ALI15X3_STS_ERR | ALI15X3_STS_DONE)); timeout++) {
delay1000();
temp = inb(SMBHSTSTS);
}
if (timeout >= MAX_TIMEOUT) {
return -2;
}
if ( temp & ALI15X3_STS_ERR ){
return -3;
}
return 0;
}
static struct resource heartbeat_resources[] = {
[0] = {
.start = 0xa2000000,
.end = 0xa2000000 + 8 - 1,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device heartbeat_device = {
.name = "heartbeat",
.id = -1,
.num_resources = ARRAY_SIZE(heartbeat_resources),
.resource = heartbeat_resources,
};
static struct platform_device *mpc1211_devices[] __initdata = {
&heartbeat_device,
};
static int __init mpc1211_devices_setup(void)
{
return platform_add_devices(mpc1211_devices,
ARRAY_SIZE(mpc1211_devices));
}
__initcall(mpc1211_devices_setup);
/* arch/sh/boards/mpc1211/rtc.c */
void mpc1211_time_init(void);
static void __init mpc1211_setup(char **cmdline_p)
{
unsigned char spd_buf[128];
__set_io_port_base(PA_PCI_IO);
pci_write_config(0,0,0,0x54, 0xb0b00000);
do {
outb(ALI15X3_ABORT, SMBHSTCNT);
spd_buf[0] = 0x0c;
spd_buf[1] = 0x43;
spd_buf[2] = 0x7f;
spd_buf[3] = 0x03;
spd_buf[4] = 0x00;
spd_buf[5] = 0x03;
spd_buf[6] = 0x00;
} while (put_smb_blk(spd_buf, 0x69, 0, 7) < 0);
board_time_init = mpc1211_time_init;
return 0;
}
/*
* The Machine Vector
*/
static struct sh_machine_vector mv_mpc1211 __initmv = {
.mv_name = "Interface MPC-1211(CTP/PCI/MPC-SH02)",
.mv_setup = mpc1211_setup,
.mv_nr_irqs = 48,
.mv_irq_demux = mpc1211_irq_demux,
.mv_init_irq = init_mpc1211_IRQ,
};
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