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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 <linux/pm.h>
#include <linux/device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <asm/irq.h>
#include <asm/hardware.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
#include <asm/mach/map.h>
#include <asm/mach/serial_sa1100.h>
#include <asm/arch/simpad.h>
#include <linux/serial_core.h>
#include <linux/ioport.h>
#include <asm/io.h>
#include "generic.h"
long cs3_shadow;
long get_cs3_shadow(void)
{
return cs3_shadow;
}
void set_cs3(long value)
{
*(CS3BUSTYPE *)(CS3_BASE) = cs3_shadow = value;
}
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;
}
EXPORT_SYMBOL(set_cs3_bit);
EXPORT_SYMBOL(clear_cs3_bit);
static struct map_desc simpad_io_desc[] __initdata = {
/* virtual physical length type */
/* MQ200 */
{ 0xf2800000, 0x4b800000, 0x00800000, MT_DEVICE },
/* Paules CS3, write only */
{ 0xf1000000, 0x18000000, 0x00100000, MT_DEVICE },
};
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);
clear_cs3_bit(DECT_POWER_ON);
}else
{
set_cs3_bit(RS232_ON);
set_cs3_bit(DECT_POWER_ON);
}
}
}
static struct sa1100_port_fns simpad_port_fns __initdata = {
.pm = simpad_uart_pm,
};
static struct mtd_partition simpad_partitions[] = {
{
.name = "SIMpad boot firmware",
.size = 0x00080000,
.offset = 0,
.mask_flags = MTD_WRITEABLE,
}, {
.name = "SIMpad kernel",
.size = 0x0010000,
.offset = MTDPART_OFS_APPEND,
}, {
.name = "SIMpad root jffs2",
.size = MTDPART_SIZ_FULL,
.offset = MTDPART_OFS_APPEND,
}
};
static struct flash_platform_data simpad_flash_data = {
.map_name = "cfi_probe",
.parts = simpad_partitions,
.nr_parts = ARRAY_SIZE(simpad_partitions),
};
static struct resource simpad_flash_resources [] = {
{
.start = SA1100_CS0_PHYS,
.end = SA1100_CS0_PHYS + SZ_16M -1,
.flags = IORESOURCE_MEM,
}, {
.start = SA1100_CS1_PHYS,
.end = SA1100_CS1_PHYS + SZ_16M -1,
.flags = IORESOURCE_MEM,
}
};
static void __init simpad_map_io(void)
{
sa1100_map_io();
iotable_init(simpad_io_desc, ARRAY_SIZE(simpad_io_desc));
set_cs3_bit (EN1 | EN0 | LED2_ON | DISPLAY_ON | RS232_ON |
ENABLE_5V | RESET_SIMCARD | DECT_POWER_ON);
sa1100_register_uart_fns(&simpad_port_fns);
sa1100_register_uart(0, 3); /* serial interface */
sa1100_register_uart(1, 1); /* DECT */
// Reassign UART 1 pins
GAFR |= GPIO_UART_TXD | GPIO_UART_RXD;
GPDR |= GPIO_UART_TXD | GPIO_LDD13 | GPIO_LDD15;
GPDR &= ~GPIO_UART_RXD;
PPAR |= PPAR_UPR;
/*
* Set up registers for sleep mode.
*/
PWER = PWER_GPIO0| PWER_RTC;
PGSR = 0x818;
PCFR = 0;
PSDR = 0;
sa11x0_set_flash_data(&simpad_flash_data, simpad_flash_resources,
ARRAY_SIZE(simpad_flash_resources));
}
static void simpad_power_off(void)
{
local_irq_disable(); // was cli
set_cs3(0x800); /* only SD_MEDIAQ */
/* disable internal oscillator, float CS lines */
PCFR = (PCFR_OPDE | PCFR_FP | PCFR_FS);
/* enable wake-up on GPIO0 (Assabet...) */
PWER = GFER = GRER = 1;
/*
* set scratchpad to zero, just in case it is used as a
* restart address by the bootloader.
*/
PSPR = 0;
PGSR = 0;
/* enter sleep mode */
PMCR = PMCR_SF;
while(1);
local_irq_enable(); /* we won't ever call it */
}
/*
* MediaQ Video Device
*/
static struct platform_device simpad_mq200fb = {
.name = "simpad-mq200",
.id = 0,
};
static struct platform_device *devices[] __initdata = {
&simpad_mq200fb
};
static int __init simpad_init(void)
{
int ret;
pm_power_off = simpad_power_off;
ret = platform_add_devices(devices, ARRAY_SIZE(devices));
if(ret)
printk(KERN_WARNING "simpad: Unable to register mq200 framebuffer device");
return 0;
}
arch_initcall(simpad_init);
MACHINE_START(SIMPAD, "Simpad")
MAINTAINER("Holger Freyther")
BOOT_MEM(0xc0000000, 0x80000000, 0xf8000000)
BOOT_PARAMS(0xc0000100)
MAPIO(simpad_map_io)
INITIRQ(sa1100_init_irq)
.timer = &sa1100_timer,
MACHINE_END
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