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/platform_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/mcp.h>
27 #include <asm/arch/simpad.h>
29 #include <linux/serial_core.h>
30 #include <linux/ioport.h>
37 long get_cs3_shadow(void)
42 void set_cs3(long value)
44 *(CS3BUSTYPE *)(CS3_BASE) = cs3_shadow = value;
47 void set_cs3_bit(int value)
50 *(CS3BUSTYPE *)(CS3_BASE) = cs3_shadow;
53 void clear_cs3_bit(int value)
56 *(CS3BUSTYPE *)(CS3_BASE) = cs3_shadow;
59 EXPORT_SYMBOL(set_cs3_bit);
60 EXPORT_SYMBOL(clear_cs3_bit);
62 static struct map_desc simpad_io_desc[] __initdata = {
64 .virtual = 0xf2800000,
65 .pfn = __phys_to_pfn(0x4b800000),
68 }, { /* Paules CS3, write only */
69 .virtual = 0xf1000000,
70 .pfn = __phys_to_pfn(0x18000000),
77 static void simpad_uart_pm(struct uart_port *port, u_int state, u_int oldstate)
79 if (port->mapbase == (u_int)&Ser1UTCR0) {
82 clear_cs3_bit(RS232_ON);
83 clear_cs3_bit(DECT_POWER_ON);
86 set_cs3_bit(RS232_ON);
87 set_cs3_bit(DECT_POWER_ON);
92 static struct sa1100_port_fns simpad_port_fns __initdata = {
97 static struct mtd_partition simpad_partitions[] = {
99 .name = "SIMpad boot firmware",
102 .mask_flags = MTD_WRITEABLE,
104 .name = "SIMpad kernel",
106 .offset = MTDPART_OFS_APPEND,
108 .name = "SIMpad root jffs2",
109 .size = MTDPART_SIZ_FULL,
110 .offset = MTDPART_OFS_APPEND,
114 static struct flash_platform_data simpad_flash_data = {
115 .map_name = "cfi_probe",
116 .parts = simpad_partitions,
117 .nr_parts = ARRAY_SIZE(simpad_partitions),
121 static struct resource simpad_flash_resources [] = {
123 .start = SA1100_CS0_PHYS,
124 .end = SA1100_CS0_PHYS + SZ_16M -1,
125 .flags = IORESOURCE_MEM,
127 .start = SA1100_CS1_PHYS,
128 .end = SA1100_CS1_PHYS + SZ_16M -1,
129 .flags = IORESOURCE_MEM,
133 static struct mcp_plat_data simpad_mcp_data = {
135 .sclk_rate = 11981000,
140 static void __init simpad_map_io(void)
144 iotable_init(simpad_io_desc, ARRAY_SIZE(simpad_io_desc));
146 set_cs3_bit (EN1 | EN0 | LED2_ON | DISPLAY_ON | RS232_ON |
147 ENABLE_5V | RESET_SIMCARD | DECT_POWER_ON);
150 sa1100_register_uart_fns(&simpad_port_fns);
151 sa1100_register_uart(0, 3); /* serial interface */
152 sa1100_register_uart(1, 1); /* DECT */
154 // Reassign UART 1 pins
155 GAFR |= GPIO_UART_TXD | GPIO_UART_RXD;
156 GPDR |= GPIO_UART_TXD | GPIO_LDD13 | GPIO_LDD15;
157 GPDR &= ~GPIO_UART_RXD;
161 * Set up registers for sleep mode.
165 PWER = PWER_GPIO0| PWER_RTC;
170 sa11x0_set_flash_data(&simpad_flash_data, simpad_flash_resources,
171 ARRAY_SIZE(simpad_flash_resources));
172 sa11x0_set_mcp_data(&simpad_mcp_data);
175 static void simpad_power_off(void)
177 local_irq_disable(); // was cli
178 set_cs3(0x800); /* only SD_MEDIAQ */
180 /* disable internal oscillator, float CS lines */
181 PCFR = (PCFR_OPDE | PCFR_FP | PCFR_FS);
182 /* enable wake-up on GPIO0 (Assabet...) */
183 PWER = GFER = GRER = 1;
185 * set scratchpad to zero, just in case it is used as a
186 * restart address by the bootloader.
190 /* enter sleep mode */
194 local_irq_enable(); /* we won't ever call it */
201 * MediaQ Video Device
203 static struct platform_device simpad_mq200fb = {
204 .name = "simpad-mq200",
208 static struct platform_device *devices[] __initdata = {
214 static int __init simpad_init(void)
218 pm_power_off = simpad_power_off;
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 .phys_io = 0x80000000,
233 .io_pg_offst = ((0xf8000000) >> 18) & 0xfffc,
234 .boot_params = 0xc0000100,
235 .map_io = simpad_map_io,
236 .init_irq = sa1100_init_irq,
237 .timer = &sa1100_timer,