2 * linux/arch/arm/mach-sa1100/simpad.c
5 #include <linux/module.h>
6 #include <linux/init.h>
7 #include <linux/kernel.h>
9 #include <linux/proc_fs.h>
10 #include <linux/string.h>
12 #include <linux/platform_device.h>
13 #include <linux/mtd/mtd.h>
14 #include <linux/mtd/partitions.h>
18 #include <mach/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>
27 #include <mach/simpad.h>
29 #include <linux/serial_core.h>
30 #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 = {
63 .virtual = 0xf2800000,
64 .pfn = __phys_to_pfn(0x4b800000),
67 }, { /* Paules CS3, write only */
68 .virtual = 0xf1000000,
69 .pfn = __phys_to_pfn(0x18000000),
76 static void simpad_uart_pm(struct uart_port *port, u_int state, u_int oldstate)
78 if (port->mapbase == (u_int)&Ser1UTCR0) {
81 clear_cs3_bit(RS232_ON);
82 clear_cs3_bit(DECT_POWER_ON);
85 set_cs3_bit(RS232_ON);
86 set_cs3_bit(DECT_POWER_ON);
91 static struct sa1100_port_fns simpad_port_fns __initdata = {
96 static struct mtd_partition simpad_partitions[] = {
98 .name = "SIMpad boot firmware",
101 .mask_flags = MTD_WRITEABLE,
103 .name = "SIMpad kernel",
105 .offset = MTDPART_OFS_APPEND,
107 .name = "SIMpad root jffs2",
108 .size = MTDPART_SIZ_FULL,
109 .offset = MTDPART_OFS_APPEND,
113 static struct flash_platform_data simpad_flash_data = {
114 .map_name = "cfi_probe",
115 .parts = simpad_partitions,
116 .nr_parts = ARRAY_SIZE(simpad_partitions),
120 static struct resource simpad_flash_resources [] = {
122 .start = SA1100_CS0_PHYS,
123 .end = SA1100_CS0_PHYS + SZ_16M -1,
124 .flags = IORESOURCE_MEM,
126 .start = SA1100_CS1_PHYS,
127 .end = SA1100_CS1_PHYS + SZ_16M -1,
128 .flags = IORESOURCE_MEM,
132 static struct mcp_plat_data simpad_mcp_data = {
134 .sclk_rate = 11981000,
139 static void __init simpad_map_io(void)
143 iotable_init(simpad_io_desc, ARRAY_SIZE(simpad_io_desc));
145 set_cs3_bit (EN1 | EN0 | LED2_ON | DISPLAY_ON | RS232_ON |
146 ENABLE_5V | RESET_SIMCARD | DECT_POWER_ON);
149 sa1100_register_uart_fns(&simpad_port_fns);
150 sa1100_register_uart(0, 3); /* serial interface */
151 sa1100_register_uart(1, 1); /* DECT */
153 // Reassign UART 1 pins
154 GAFR |= GPIO_UART_TXD | GPIO_UART_RXD;
155 GPDR |= GPIO_UART_TXD | GPIO_LDD13 | GPIO_LDD15;
156 GPDR &= ~GPIO_UART_RXD;
160 * Set up registers for sleep mode.
164 PWER = PWER_GPIO0| PWER_RTC;
171 static void simpad_power_off(void)
173 local_irq_disable(); // was cli
174 set_cs3(0x800); /* only SD_MEDIAQ */
176 /* disable internal oscillator, float CS lines */
177 PCFR = (PCFR_OPDE | PCFR_FP | PCFR_FS);
178 /* enable wake-up on GPIO0 (Assabet...) */
179 PWER = GFER = GRER = 1;
181 * set scratchpad to zero, just in case it is used as a
182 * restart address by the bootloader.
186 /* enter sleep mode */
190 local_irq_enable(); /* we won't ever call it */
197 * MediaQ Video Device
199 static struct platform_device simpad_mq200fb = {
200 .name = "simpad-mq200",
204 static struct platform_device *devices[] __initdata = {
210 static int __init simpad_init(void)
214 pm_power_off = simpad_power_off;
216 sa11x0_register_mtd(&simpad_flash_data, simpad_flash_resources,
217 ARRAY_SIZE(simpad_flash_resources));
218 sa11x0_register_mcp(&simpad_mcp_data);
220 ret = platform_add_devices(devices, ARRAY_SIZE(devices));
222 printk(KERN_WARNING "simpad: Unable to register mq200 framebuffer device");
227 arch_initcall(simpad_init);
230 MACHINE_START(SIMPAD, "Simpad")
231 /* Maintainer: Holger Freyther */
232 .boot_params = 0xc0000100,
233 .map_io = simpad_map_io,
234 .init_irq = sa1100_init_irq,
235 .timer = &sa1100_timer,