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/*
* linux/arch/arm/mach-sa1100/simpad.c
*
*/
#include <linux/config.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/tty.h>
#include <linux/proc_fs.h>
#include <linux/string.h>
#include <asm/hardware.h>
#include <asm/setup.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/serial_sa1100.h>
#include <linux/serial_core.h>
#include "generic.h"
long cs3_shadow;
static int __init simpad_init(void)
{
PSPR = 0xc0008000;
GPDR &= ~GPIO_GPIO0;
cs3_shadow = (EN1 | EN0 | LED2_ON | DISPLAY_ON | RS232_ON |
ENABLE_5V | RESET_SIMCARD);
*(CS3BUSTYPE *)(CS3_BASE) = cs3_shadow;
return 0;
}
__initcall(simpad_init);
long get_cs3_shadow()
{
return cs3_shadow;
}
void set_cs3_bit(int value)
{
cs3_shadow |= value;
*(CS3BUSTYPE *)(CS3_BASE) = cs3_shadow;
}
void clear_cs3_bit(int value)
{
cs3_shadow &= ~value;
*(CS3BUSTYPE *)(CS3_BASE) = cs3_shadow;
}
static void __init
fixup_simpad(struct machine_desc *desc, struct param_struct *params,
char **cmdline, struct meminfo *mi)
{
#ifdef CONFIG_SA1100_SIMPAD_DRAM_64MB /* DRAM */
SET_BANK( 0, 0xc0000000, 64*1024*1024 );
#else
SET_BANK( 0, 0xc0000000, 32*1024*1024 );
#endif
mi->nr_banks = 1;
ROOT_DEV = MKDEV(RAMDISK_MAJOR,0);
setup_ramdisk( 1, 0, 0, 8192 );
setup_initrd( __phys_to_virt(0xc0800000), 4*1024*1024 );
}
static struct map_desc simpad_io_desc[] __initdata = {
/* virtual physical length domain r w c b */
{ 0xe8000000, 0x00000000, 0x02000000, DOMAIN_IO, 1, 1, 0, 0 },
{ 0xf2800000, 0x4b800000, 0x00800000, DOMAIN_IO, 1, 1, 0, 0 }, /* MQ200 */
{ 0xf1000000, 0x18000000, 0x00100000, DOMAIN_IO, 0, 1, 0, 0 }, /* Paules CS3, write only */
LAST_DESC
};
static void simpad_uart_pm(struct uart_port *port, u_int state, u_int oldstate)
{
if (port->mapbase == (u_int)&Ser1UTCR0) {
if (state)
clear_cs3_bit(RS232_ON);
else
set_cs3_bit(RS232_ON);
}
}
static struct sa1100_port_fns simpad_port_fns __initdata = {
pm: simpad_uart_pm,
};
static void __init simpad_map_io(void)
{
sa1100_map_io();
iotable_init(simpad_io_desc);
#ifndef CONFIG_SERIAL_SA1100_OLD
//It is only possible to register 3 UART in serial_sa1100.c
sa1100_register_uart(0, 3);
sa1100_register_uart(1, 1);
#endif
}
#ifdef CONFIG_PROC_FS
static char* name[]={
"VCC_5V_EN",
"VCC_3V_EN",
"EN1",
"EN0",
"DISPLAY_ON",
"PCMCIA_BUFF_DIS",
"MQ_RESET",
"PCMCIA_RESET",
"DECT_POWER_ON",
"IRDA_SD",
"RS232_ON",
"SD_MEDIAQ",
"LED2_ON",
"IRDA_MODE",
"ENABLE_5V",
"RESET_SIMCARD"
};
static int proc_cs3_read(char *page, char **start, off_t off,
int count, int *eof, void *data)
{
char *p = page;
int len, i;
p += sprintf(p, "Chipselect3 : %x\n", cs3_shadow);
for (i = 0; i <= 15; i++) {
if(cs3_shadow & (1<<i)) {
p += sprintf(p, "%s\t: TRUE \n",name[i]);
} else
p += sprintf(p, "%s\t: FALSE \n",name[i]);
}
len = (p - page) - off;
if (len < 0)
len = 0;
*eof = (len <= count) ? 1 : 0;
*start = page + off;
return len;
}
static struct proc_dir_entry *proc_cs3;
static int __init cs3_init(void)
{
proc_cs3 = create_proc_entry("cs3", 0, 0);
if (proc_cs3)
proc_cs3->read_proc = proc_cs3_read;
return 0;
}
static int __exit cs3_exit(void)
{
if (proc_cs3)
remove_proc_entry( "cs3", 0);
return 0;
}
__initcall(cs3_init);
#endif // CONFIG_PROC_FS
MACHINE_START(SIMPAD, "Simpad")
MAINTAINER("Juergen Messerer")
BOOT_MEM(0xc0000000, 0x80000000, 0xf8000000)
FIXUP(fixup_simpad)
MAPIO(simpad_map_io)
INITIRQ(sa1100_init_irq)
MACHINE_END
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