2 * Hardware definitions for Compaq iPAQ H3xxx Handheld Computers
4 * Copyright 2000,1 Compaq Computer Corporation.
6 * Use consistent with the GNU GPL is permitted,
7 * provided that this copyright notice is
8 * preserved in its entirety in all copies and derived works.
10 * COMPAQ COMPUTER CORPORATION MAKES NO WARRANTIES, EXPRESSED OR IMPLIED,
11 * AS TO THE USEFULNESS OR CORRECTNESS OF THIS CODE OR ITS
12 * FITNESS FOR ANY PARTICULAR PURPOSE.
14 * Author: Jamey Hicks.
18 * 2001-10-?? Andrew Christian Added support for iPAQ H3800
19 * and abstracted EGPIO interface.
22 #include <linux/module.h>
23 #include <linux/init.h>
24 #include <linux/kernel.h>
25 #include <linux/tty.h>
27 #include <linux/device.h>
28 #include <linux/mfd/htc-egpio.h>
29 #include <linux/mtd/mtd.h>
30 #include <linux/mtd/partitions.h>
31 #include <linux/serial_core.h>
32 #include <linux/gpio.h>
33 #include <linux/platform_device.h>
36 #include <mach/hardware.h>
37 #include <asm/mach-types.h>
38 #include <asm/setup.h>
40 #include <asm/mach/irq.h>
41 #include <asm/mach/arch.h>
42 #include <asm/mach/flash.h>
43 #include <asm/mach/irda.h>
44 #include <asm/mach/map.h>
45 #include <asm/mach/serial_sa1100.h>
47 #include <mach/h3600.h>
48 #include <mach/h3600_gpio.h>
52 struct gpio_default_state {
58 #define GPIO_MODE_IN -1
59 #define GPIO_MODE_OUT0 0
60 #define GPIO_MODE_OUT1 1
62 static void h3xxx_init_gpio(struct gpio_default_state *s, size_t n)
65 const char *name = s->name;
70 err = gpio_request(s->gpio, name);
72 printk(KERN_ERR "gpio%u: unable to request: %d\n",
77 err = gpio_direction_output(s->gpio, s->mode);
79 err = gpio_direction_input(s->gpio);
82 printk(KERN_ERR "gpio%u: unable to set direction: %d\n",
96 static struct mtd_partition h3xxx_partitions[] = {
98 .name = "H3XXX boot firmware",
101 .mask_flags = MTD_WRITEABLE, /* force read-only */
103 .name = "H3XXX rootfs",
104 .size = MTDPART_SIZ_FULL,
105 .offset = 0x00040000,
109 static void h3xxx_set_vpp(int vpp)
111 gpio_set_value(H3XXX_EGPIO_VPP_ON, vpp);
114 static int h3xxx_flash_init(void)
116 int err = gpio_request(H3XXX_EGPIO_VPP_ON, "Flash Vpp");
120 err = gpio_direction_output(H3XXX_EGPIO_VPP_ON, 0);
122 gpio_free(H3XXX_EGPIO_VPP_ON);
127 static void h3xxx_flash_exit(void)
129 gpio_free(H3XXX_EGPIO_VPP_ON);
132 static struct flash_platform_data h3xxx_flash_data = {
133 .map_name = "cfi_probe",
134 .set_vpp = h3xxx_set_vpp,
135 .init = h3xxx_flash_init,
136 .exit = h3xxx_flash_exit,
137 .parts = h3xxx_partitions,
138 .nr_parts = ARRAY_SIZE(h3xxx_partitions),
141 static struct resource h3xxx_flash_resource = {
142 .start = SA1100_CS0_PHYS,
143 .end = SA1100_CS0_PHYS + SZ_32M - 1,
144 .flags = IORESOURCE_MEM,
151 static void h3xxx_uart_set_mctrl(struct uart_port *port, u_int mctrl)
153 if (port->mapbase == _Ser3UTCR0) {
154 gpio_set_value(H3XXX_GPIO_COM_RTS, !(mctrl & TIOCM_RTS));
158 static u_int h3xxx_uart_get_mctrl(struct uart_port *port)
160 u_int ret = TIOCM_CD | TIOCM_CTS | TIOCM_DSR;
162 if (port->mapbase == _Ser3UTCR0) {
164 * DCD and CTS bits are inverted in GPLR by RS232 transceiver
166 if (gpio_get_value(H3XXX_GPIO_COM_DCD))
168 if (gpio_get_value(H3XXX_GPIO_COM_CTS))
175 static void h3xxx_uart_pm(struct uart_port *port, u_int state, u_int oldstate)
177 if (port->mapbase == _Ser3UTCR0)
178 if (!gpio_request(H3XXX_EGPIO_RS232_ON, "RS232 transceiver")) {
179 gpio_direction_output(H3XXX_EGPIO_RS232_ON, !state);
180 gpio_free(H3XXX_EGPIO_RS232_ON);
185 * Enable/Disable wake up events for this serial port.
186 * Obviously, we only support this on the normal COM port.
188 static int h3xxx_uart_set_wake(struct uart_port *port, u_int enable)
192 if (port->mapbase == _Ser3UTCR0) {
194 PWER |= PWER_GPIO23 | PWER_GPIO25; /* DCD and CTS */
196 PWER &= ~(PWER_GPIO23 | PWER_GPIO25); /* DCD and CTS */
202 static struct sa1100_port_fns h3xxx_port_fns __initdata = {
203 .set_mctrl = h3xxx_uart_set_mctrl,
204 .get_mctrl = h3xxx_uart_get_mctrl,
206 .set_wake = h3xxx_uart_set_wake,
213 static struct resource egpio_resources[] = {
215 .start = H3600_EGPIO_PHYS,
216 .end = H3600_EGPIO_PHYS + 0x4 - 1,
217 .flags = IORESOURCE_MEM,
221 static struct htc_egpio_chip egpio_chips[] = {
224 .gpio_base = H3XXX_EGPIO_BASE,
226 .direction = HTC_EGPIO_OUTPUT,
227 .initial_values = 0x0080, /* H3XXX_EGPIO_RS232_ON */
231 static struct htc_egpio_platform_data egpio_info = {
235 .num_chips = ARRAY_SIZE(egpio_chips),
238 static struct platform_device h3xxx_egpio = {
241 .resource = egpio_resources,
242 .num_resources = ARRAY_SIZE(egpio_resources),
244 .platform_data = &egpio_info,
248 static struct platform_device *h3xxx_devices[] = {
252 static void __init h3xxx_mach_init(void)
254 sa1100_register_uart_fns(&h3xxx_port_fns);
255 sa11x0_register_mtd(&h3xxx_flash_data, &h3xxx_flash_resource, 1);
256 platform_add_devices(h3xxx_devices, ARRAY_SIZE(h3xxx_devices));
259 static struct map_desc h3600_io_desc[] __initdata = {
260 { /* static memory bank 2 CS#2 */
261 .virtual = H3600_BANK_2_VIRT,
262 .pfn = __phys_to_pfn(SA1100_CS2_PHYS),
263 .length = 0x02800000,
265 }, { /* static memory bank 4 CS#4 */
266 .virtual = H3600_BANK_4_VIRT,
267 .pfn = __phys_to_pfn(SA1100_CS4_PHYS),
268 .length = 0x00800000,
270 }, { /* EGPIO 0 CS#5 */
271 .virtual = H3600_EGPIO_VIRT,
272 .pfn = __phys_to_pfn(H3600_EGPIO_PHYS),
273 .length = 0x01000000,
279 * Common map_io initialization
282 static void __init h3xxx_map_io(void)
285 iotable_init(h3600_io_desc, ARRAY_SIZE(h3600_io_desc));
287 sa1100_register_uart(0, 3); /* Common serial port */
288 // sa1100_register_uart(1, 1); /* Microcontroller on 3100/3600 */
290 /* Ensure those pins are outputs and driving low */
291 PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM;
292 PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
294 /* Configure suspend conditions */
300 GPCR = 0x0fffffff; /* All outputs are set low by default */
301 GPDR = 0; /* Configure all GPIOs as input */
304 /************************* H3100 *************************/
306 #ifdef CONFIG_SA1100_H3100
309 * helper for sa1100fb
311 static void h3100_lcd_power(int enable)
313 if (!gpio_request(H3XXX_EGPIO_LCD_ON, "LCD ON")) {
314 gpio_set_value(H3100_GPIO_LCD_3V_ON, enable);
315 gpio_direction_output(H3XXX_EGPIO_LCD_ON, enable);
316 gpio_free(H3XXX_EGPIO_LCD_ON);
321 static void __init h3100_map_io(void)
325 sa1100fb_lcd_power = h3100_lcd_power;
327 /* Older bootldrs put GPIO2-9 in alternate mode on the
328 assumption that they are used for video */
333 * This turns the IRDA power on or off on the Compaq H3100
335 static int h3100_irda_set_power(struct device *dev, unsigned int state)
337 gpio_set_value(H3100_GPIO_IR_ON, state);
341 static void h3100_irda_set_speed(struct device *dev, unsigned int speed)
343 gpio_set_value(H3100_GPIO_IR_FSEL, !(speed < 4000000));
346 static struct irda_platform_data h3100_irda_data = {
347 .set_power = h3100_irda_set_power,
348 .set_speed = h3100_irda_set_speed,
351 static struct gpio_default_state h3100_default_gpio[] = {
352 { H3100_GPIO_IR_ON, GPIO_MODE_OUT0, "IrDA power" },
353 { H3100_GPIO_IR_FSEL, GPIO_MODE_OUT0, "IrDA fsel" },
354 { H3XXX_GPIO_COM_DCD, GPIO_MODE_IN, "COM DCD" },
355 { H3XXX_GPIO_COM_CTS, GPIO_MODE_IN, "COM CTS" },
356 { H3XXX_GPIO_COM_RTS, GPIO_MODE_OUT0, "COM RTS" },
357 { H3100_GPIO_LCD_3V_ON, GPIO_MODE_OUT0, "LCD 3v" },
360 static void __init h3100_mach_init(void)
362 h3xxx_init_gpio(h3100_default_gpio, ARRAY_SIZE(h3100_default_gpio));
364 sa11x0_register_irda(&h3100_irda_data);
367 MACHINE_START(H3100, "Compaq iPAQ H3100")
368 .phys_io = 0x80000000,
369 .io_pg_offst = ((0xf8000000) >> 18) & 0xfffc,
370 .boot_params = 0xc0000100,
371 .map_io = h3100_map_io,
372 .init_irq = sa1100_init_irq,
373 .timer = &sa1100_timer,
374 .init_machine = h3100_mach_init,
377 #endif /* CONFIG_SA1100_H3100 */
379 /************************* H3600 *************************/
381 #ifdef CONFIG_SA1100_H3600
384 * helper for sa1100fb
386 static void h3600_lcd_power(int enable)
388 if (gpio_request(H3XXX_EGPIO_LCD_ON, "LCD power"))
390 if (gpio_request(H3600_EGPIO_LCD_PCI, "LCD control"))
392 if (gpio_request(H3600_EGPIO_LCD_5V_ON, "LCD 5v"))
394 if (gpio_request(H3600_EGPIO_LVDD_ON, "LCD 9v/-6.5v"))
397 gpio_direction_output(H3XXX_EGPIO_LCD_ON, enable);
398 gpio_direction_output(H3600_EGPIO_LCD_PCI, enable);
399 gpio_direction_output(H3600_EGPIO_LCD_5V_ON, enable);
400 gpio_direction_output(H3600_EGPIO_LVDD_ON, enable);
402 gpio_free(H3600_EGPIO_LVDD_ON);
403 err4: gpio_free(H3600_EGPIO_LCD_5V_ON);
404 err3: gpio_free(H3600_EGPIO_LCD_PCI);
405 err2: gpio_free(H3XXX_EGPIO_LCD_ON);
409 static void __init h3600_map_io(void)
413 sa1100fb_lcd_power = h3600_lcd_power;
417 * This turns the IRDA power on or off on the Compaq H3600
419 static int h3600_irda_set_power(struct device *dev, unsigned int state)
421 gpio_set_value(H3600_EGPIO_IR_ON, state);
425 static void h3600_irda_set_speed(struct device *dev, unsigned int speed)
427 gpio_set_value(H3600_EGPIO_IR_FSEL, !(speed < 4000000));
430 static int h3600_irda_startup(struct device *dev)
432 int err = gpio_request(H3600_EGPIO_IR_ON, "IrDA power");
435 err = gpio_direction_output(H3600_EGPIO_IR_ON, 0);
438 err = gpio_request(H3600_EGPIO_IR_FSEL, "IrDA fsel");
441 err = gpio_direction_output(H3600_EGPIO_IR_FSEL, 0);
446 err3: gpio_free(H3600_EGPIO_IR_FSEL);
447 err2: gpio_free(H3600_EGPIO_IR_ON);
451 static void h3600_irda_shutdown(struct device *dev)
453 gpio_free(H3600_EGPIO_IR_ON);
454 gpio_free(H3600_EGPIO_IR_FSEL);
457 static struct irda_platform_data h3600_irda_data = {
458 .set_power = h3600_irda_set_power,
459 .set_speed = h3600_irda_set_speed,
460 .startup = h3600_irda_startup,
461 .shutdown = h3600_irda_shutdown,
464 static struct gpio_default_state h3600_default_gpio[] = {
465 { H3XXX_GPIO_COM_DCD, GPIO_MODE_IN, "COM DCD" },
466 { H3XXX_GPIO_COM_CTS, GPIO_MODE_IN, "COM CTS" },
467 { H3XXX_GPIO_COM_RTS, GPIO_MODE_OUT0, "COM RTS" },
470 static void __init h3600_mach_init(void)
472 h3xxx_init_gpio(h3600_default_gpio, ARRAY_SIZE(h3600_default_gpio));
474 sa11x0_register_irda(&h3600_irda_data);
477 MACHINE_START(H3600, "Compaq iPAQ H3600")
478 .phys_io = 0x80000000,
479 .io_pg_offst = ((0xf8000000) >> 18) & 0xfffc,
480 .boot_params = 0xc0000100,
481 .map_io = h3600_map_io,
482 .init_irq = sa1100_init_irq,
483 .timer = &sa1100_timer,
484 .init_machine = h3600_mach_init,
487 #endif /* CONFIG_SA1100_H3600 */