diff options
Diffstat (limited to 'arch/arm/mach-sa1100/simpad.c')
| -rw-r--r-- | arch/arm/mach-sa1100/simpad.c | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/arch/arm/mach-sa1100/simpad.c b/arch/arm/mach-sa1100/simpad.c new file mode 100644 index 0000000..8d113d6 --- /dev/null +++ b/arch/arm/mach-sa1100/simpad.c @@ -0,0 +1,224 @@ +/* + * 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 |