2 * linux/arch/arm/mach-sa1100/simpad.c
5 #include <linux/config.h>
6 #include <linux/module.h>
7 #include <linux/init.h>
8 #include <linux/kernel.h>
10 #include <linux/proc_fs.h>
11 #include <linux/string.h>
13 #include <linux/device.h>
14 #include <linux/mtd/mtd.h>
15 #include <linux/mtd/partitions.h>
18 #include <asm/hardware.h>
19 #include <asm/setup.h>
21 #include <asm/mach-types.h>
22 #include <asm/mach/arch.h>
23 #include <asm/mach/flash.h>
24 #include <asm/mach/map.h>
25 #include <asm/mach/serial_sa1100.h>
26 #include <asm/arch/simpad.h>
28 #include <linux/serial_core.h>
29 #include <linux/ioport.h>
36 long get_cs3_shadow(void)
41 void set_cs3(long value)
43 *(CS3BUSTYPE *)(CS3_BASE) = cs3_shadow = value;
46 void set_cs3_bit(int value)
49 *(CS3BUSTYPE *)(CS3_BASE) = cs3_shadow;
52 void clear_cs3_bit(int value)
55 *(CS3BUSTYPE *)(CS3_BASE) = cs3_shadow;
58 EXPORT_SYMBOL(set_cs3_bit);
59 EXPORT_SYMBOL(clear_cs3_bit);
61 static struct map_desc simpad_io_desc[] __initdata = {
62 /* virtual physical length type */
64 { 0xf2800000, 0x4b800000, 0x00800000, MT_DEVICE },
65 /* Paules CS3, write only */
66 { 0xf1000000, 0x18000000, 0x00100000, MT_DEVICE },
70 static void simpad_uart_pm(struct uart_port *port, u_int state, u_int oldstate)
72 if (port->mapbase == (u_int)&Ser1UTCR0) {
75 clear_cs3_bit(RS232_ON);
76 clear_cs3_bit(DECT_POWER_ON);
79 set_cs3_bit(RS232_ON);
80 set_cs3_bit(DECT_POWER_ON);
85 static struct sa1100_port_fns simpad_port_fns __initdata = {
90 static struct mtd_partition simpad_partitions[] = {
92 .name = "SIMpad boot firmware",
95 .mask_flags = MTD_WRITEABLE,
97 .name = "SIMpad kernel",
99 .offset = MTDPART_OFS_APPEND,
101 .name = "SIMpad root jffs2",
102 .size = MTDPART_SIZ_FULL,
103 .offset = MTDPART_OFS_APPEND,
107 static struct flash_platform_data simpad_flash_data = {
108 .map_name = "cfi_probe",
109 .parts = simpad_partitions,
110 .nr_parts = ARRAY_SIZE(simpad_partitions),
114 static struct resource simpad_flash_resources [] = {
116 .start = SA1100_CS0_PHYS,
117 .end = SA1100_CS0_PHYS + SZ_16M -1,
118 .flags = IORESOURCE_MEM,
120 .start = SA1100_CS1_PHYS,
121 .end = SA1100_CS1_PHYS + SZ_16M -1,
122 .flags = IORESOURCE_MEM,
128 static void __init simpad_map_io(void)
132 iotable_init(simpad_io_desc, ARRAY_SIZE(simpad_io_desc));
134 set_cs3_bit (EN1 | EN0 | LED2_ON | DISPLAY_ON | RS232_ON |
135 ENABLE_5V | RESET_SIMCARD | DECT_POWER_ON);
138 sa1100_register_uart_fns(&simpad_port_fns);
139 sa1100_register_uart(0, 3); /* serial interface */
140 sa1100_register_uart(1, 1); /* DECT */
142 // Reassign UART 1 pins
143 GAFR |= GPIO_UART_TXD | GPIO_UART_RXD;
144 GPDR |= GPIO_UART_TXD | GPIO_LDD13 | GPIO_LDD15;
145 GPDR &= ~GPIO_UART_RXD;
149 * Set up registers for sleep mode.
153 PWER = PWER_GPIO0| PWER_RTC;
158 sa11x0_set_flash_data(&simpad_flash_data, simpad_flash_resources,
159 ARRAY_SIZE(simpad_flash_resources));
162 static void simpad_power_off(void)
164 local_irq_disable(); // was cli
165 set_cs3(0x800); /* only SD_MEDIAQ */
167 /* disable internal oscillator, float CS lines */
168 PCFR = (PCFR_OPDE | PCFR_FP | PCFR_FS);
169 /* enable wake-up on GPIO0 (Assabet...) */
170 PWER = GFER = GRER = 1;
172 * set scratchpad to zero, just in case it is used as a
173 * restart address by the bootloader.
177 /* enter sleep mode */
181 local_irq_enable(); /* we won't ever call it */
188 * MediaQ Video Device
190 static struct platform_device simpad_mq200fb = {
191 .name = "simpad-mq200",
195 static struct platform_device *devices[] __initdata = {
201 static int __init simpad_init(void)
205 pm_power_off = simpad_power_off;
207 ret = platform_add_devices(devices, ARRAY_SIZE(devices));
209 printk(KERN_WARNING "simpad: Unable to register mq200 framebuffer device");
214 arch_initcall(simpad_init);
217 MACHINE_START(SIMPAD, "Simpad")
218 /* Maintainer: Holger Freyther */
219 .phys_ram = 0xc0000000,
220 .phys_io = 0x80000000,
221 .io_pg_offst = ((0xf8000000) >> 18) & 0xfffc,
222 .boot_params = 0xc0000100,
223 .map_io = simpad_map_io,
224 .init_irq = sa1100_init_irq,
225 .timer = &sa1100_timer,