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1da177e4 LT |
1 | /* |
2 | * Hardware definitions for Compaq iPAQ H3xxx Handheld Computers | |
3 | * | |
4 | * Copyright 2000,1 Compaq Computer Corporation. | |
5 | * | |
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. | |
9 | * | |
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. | |
13 | * | |
14 | * Author: Jamey Hicks. | |
15 | * | |
16 | * History: | |
17 | * | |
18 | * 2001-10-?? Andrew Christian Added support for iPAQ H3800 | |
19 | * and abstracted EGPIO interface. | |
20 | * | |
21 | */ | |
1da177e4 LT |
22 | #include <linux/module.h> |
23 | #include <linux/init.h> | |
24 | #include <linux/kernel.h> | |
25 | #include <linux/tty.h> | |
26 | #include <linux/pm.h> | |
27 | #include <linux/device.h> | |
28 | #include <linux/mtd/mtd.h> | |
29 | #include <linux/mtd/partitions.h> | |
30 | #include <linux/serial_core.h> | |
31 | ||
32 | #include <asm/irq.h> | |
a09e64fb | 33 | #include <mach/hardware.h> |
1da177e4 LT |
34 | #include <asm/mach-types.h> |
35 | #include <asm/setup.h> | |
36 | ||
37 | #include <asm/mach/irq.h> | |
38 | #include <asm/mach/arch.h> | |
39 | #include <asm/mach/flash.h> | |
40 | #include <asm/mach/irda.h> | |
41 | #include <asm/mach/map.h> | |
42 | #include <asm/mach/serial_sa1100.h> | |
43 | ||
a09e64fb | 44 | #include <mach/h3600.h> |
a09e64fb | 45 | #include <mach/h3600_gpio.h> |
1da177e4 LT |
46 | |
47 | #include "generic.h" | |
48 | ||
607b067e DA |
49 | void (*assign_h3600_egpio)(enum ipaq_egpio_type x, int level); |
50 | EXPORT_SYMBOL(assign_h3600_egpio); | |
1da177e4 LT |
51 | |
52 | static struct mtd_partition h3xxx_partitions[] = { | |
53 | { | |
54 | .name = "H3XXX boot firmware", | |
55 | .size = 0x00040000, | |
56 | .offset = 0, | |
57 | .mask_flags = MTD_WRITEABLE, /* force read-only */ | |
58 | }, { | |
f110b3f2 | 59 | .name = "H3XXX rootfs", |
1da177e4 LT |
60 | .size = MTDPART_SIZ_FULL, |
61 | .offset = 0x00040000, | |
1da177e4 LT |
62 | } |
63 | }; | |
64 | ||
65 | static void h3xxx_set_vpp(int vpp) | |
66 | { | |
67 | assign_h3600_egpio(IPAQ_EGPIO_VPP_ON, vpp); | |
68 | } | |
69 | ||
70 | static struct flash_platform_data h3xxx_flash_data = { | |
71 | .map_name = "cfi_probe", | |
72 | .set_vpp = h3xxx_set_vpp, | |
73 | .parts = h3xxx_partitions, | |
74 | .nr_parts = ARRAY_SIZE(h3xxx_partitions), | |
75 | }; | |
76 | ||
77 | static struct resource h3xxx_flash_resource = { | |
78 | .start = SA1100_CS0_PHYS, | |
79 | .end = SA1100_CS0_PHYS + SZ_32M - 1, | |
80 | .flags = IORESOURCE_MEM, | |
81 | }; | |
82 | ||
83 | /* | |
84 | * This turns the IRDA power on or off on the Compaq H3600 | |
85 | */ | |
86 | static int h3600_irda_set_power(struct device *dev, unsigned int state) | |
87 | { | |
88 | assign_h3600_egpio( IPAQ_EGPIO_IR_ON, state ); | |
89 | ||
90 | return 0; | |
91 | } | |
92 | ||
58c02ec4 | 93 | static void h3600_irda_set_speed(struct device *dev, unsigned int speed) |
1da177e4 | 94 | { |
104a416d | 95 | assign_h3600_egpio(IPAQ_EGPIO_IR_FSEL, !(speed < 4000000)); |
1da177e4 LT |
96 | } |
97 | ||
98 | static struct irda_platform_data h3600_irda_data = { | |
99 | .set_power = h3600_irda_set_power, | |
100 | .set_speed = h3600_irda_set_speed, | |
101 | }; | |
102 | ||
103 | static void h3xxx_mach_init(void) | |
104 | { | |
7a5b4e16 RK |
105 | sa11x0_register_mtd(&h3xxx_flash_data, &h3xxx_flash_resource, 1); |
106 | sa11x0_register_irda(&h3600_irda_data); | |
1da177e4 LT |
107 | } |
108 | ||
109 | /* | |
110 | * low-level UART features | |
111 | */ | |
112 | ||
113 | static void h3600_uart_set_mctrl(struct uart_port *port, u_int mctrl) | |
114 | { | |
115 | if (port->mapbase == _Ser3UTCR0) { | |
116 | if (mctrl & TIOCM_RTS) | |
117 | GPCR = GPIO_H3600_COM_RTS; | |
118 | else | |
119 | GPSR = GPIO_H3600_COM_RTS; | |
120 | } | |
121 | } | |
122 | ||
123 | static u_int h3600_uart_get_mctrl(struct uart_port *port) | |
124 | { | |
125 | u_int ret = TIOCM_CD | TIOCM_CTS | TIOCM_DSR; | |
126 | ||
127 | if (port->mapbase == _Ser3UTCR0) { | |
128 | int gplr = GPLR; | |
129 | /* DCD and CTS bits are inverted in GPLR by RS232 transceiver */ | |
130 | if (gplr & GPIO_H3600_COM_DCD) | |
131 | ret &= ~TIOCM_CD; | |
132 | if (gplr & GPIO_H3600_COM_CTS) | |
133 | ret &= ~TIOCM_CTS; | |
134 | } | |
135 | ||
136 | return ret; | |
137 | } | |
138 | ||
139 | static void h3600_uart_pm(struct uart_port *port, u_int state, u_int oldstate) | |
140 | { | |
141 | if (port->mapbase == _Ser2UTCR0) { /* TODO: REMOVE THIS */ | |
142 | assign_h3600_egpio(IPAQ_EGPIO_IR_ON, !state); | |
143 | } else if (port->mapbase == _Ser3UTCR0) { | |
144 | assign_h3600_egpio(IPAQ_EGPIO_RS232_ON, !state); | |
145 | } | |
146 | } | |
147 | ||
148 | /* | |
149 | * Enable/Disable wake up events for this serial port. | |
150 | * Obviously, we only support this on the normal COM port. | |
151 | */ | |
152 | static int h3600_uart_set_wake(struct uart_port *port, u_int enable) | |
153 | { | |
154 | int err = -EINVAL; | |
155 | ||
156 | if (port->mapbase == _Ser3UTCR0) { | |
157 | if (enable) | |
158 | PWER |= PWER_GPIO23 | PWER_GPIO25; /* DCD and CTS */ | |
159 | else | |
160 | PWER &= ~(PWER_GPIO23 | PWER_GPIO25); /* DCD and CTS */ | |
161 | err = 0; | |
162 | } | |
163 | return err; | |
164 | } | |
165 | ||
166 | static struct sa1100_port_fns h3600_port_fns __initdata = { | |
167 | .set_mctrl = h3600_uart_set_mctrl, | |
168 | .get_mctrl = h3600_uart_get_mctrl, | |
169 | .pm = h3600_uart_pm, | |
170 | .set_wake = h3600_uart_set_wake, | |
171 | }; | |
172 | ||
173 | /* | |
174 | * helper for sa1100fb | |
175 | */ | |
176 | static void h3xxx_lcd_power(int enable) | |
177 | { | |
178 | assign_h3600_egpio(IPAQ_EGPIO_LCD_POWER, enable); | |
179 | } | |
180 | ||
181 | static struct map_desc h3600_io_desc[] __initdata = { | |
92519d82 DS |
182 | { /* static memory bank 2 CS#2 */ |
183 | .virtual = H3600_BANK_2_VIRT, | |
184 | .pfn = __phys_to_pfn(SA1100_CS2_PHYS), | |
185 | .length = 0x02800000, | |
186 | .type = MT_DEVICE | |
187 | }, { /* static memory bank 4 CS#4 */ | |
188 | .virtual = H3600_BANK_4_VIRT, | |
189 | .pfn = __phys_to_pfn(SA1100_CS4_PHYS), | |
190 | .length = 0x00800000, | |
191 | .type = MT_DEVICE | |
192 | }, { /* EGPIO 0 CS#5 */ | |
193 | .virtual = H3600_EGPIO_VIRT, | |
194 | .pfn = __phys_to_pfn(H3600_EGPIO_PHYS), | |
195 | .length = 0x01000000, | |
196 | .type = MT_DEVICE | |
197 | } | |
1da177e4 LT |
198 | }; |
199 | ||
200 | /* | |
201 | * Common map_io initialization | |
202 | */ | |
203 | ||
204 | static void __init h3xxx_map_io(void) | |
205 | { | |
206 | sa1100_map_io(); | |
207 | iotable_init(h3600_io_desc, ARRAY_SIZE(h3600_io_desc)); | |
208 | ||
209 | sa1100_register_uart_fns(&h3600_port_fns); | |
210 | sa1100_register_uart(0, 3); /* Common serial port */ | |
211 | // sa1100_register_uart(1, 1); /* Microcontroller on 3100/3600 */ | |
212 | ||
213 | /* Ensure those pins are outputs and driving low */ | |
214 | PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM; | |
215 | PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM); | |
216 | ||
217 | /* Configure suspend conditions */ | |
218 | PGSR = 0; | |
219 | PWER = PWER_GPIO0 | PWER_RTC; | |
220 | PCFR = PCFR_OPDE; | |
221 | PSDR = 0; | |
222 | ||
223 | sa1100fb_lcd_power = h3xxx_lcd_power; | |
224 | } | |
225 | ||
1da177e4 LT |
226 | /************************* H3100 *************************/ |
227 | ||
228 | #ifdef CONFIG_SA1100_H3100 | |
229 | ||
230 | #define H3100_EGPIO (*(volatile unsigned int *)H3600_EGPIO_VIRT) | |
231 | static unsigned int h3100_egpio = 0; | |
232 | ||
233 | static void h3100_control_egpio(enum ipaq_egpio_type x, int setp) | |
234 | { | |
235 | unsigned int egpio = 0; | |
236 | long gpio = 0; | |
237 | unsigned long flags; | |
238 | ||
239 | switch (x) { | |
240 | case IPAQ_EGPIO_LCD_POWER: | |
241 | egpio |= EGPIO_H3600_LCD_ON; | |
242 | gpio |= GPIO_H3100_LCD_3V_ON; | |
1da177e4 LT |
243 | break; |
244 | case IPAQ_EGPIO_LCD_ENABLE: | |
245 | break; | |
246 | case IPAQ_EGPIO_CODEC_NRESET: | |
247 | egpio |= EGPIO_H3600_CODEC_NRESET; | |
248 | break; | |
249 | case IPAQ_EGPIO_AUDIO_ON: | |
250 | gpio |= GPIO_H3100_AUD_PWR_ON | |
251 | | GPIO_H3100_AUD_ON; | |
252 | break; | |
253 | case IPAQ_EGPIO_QMUTE: | |
254 | gpio |= GPIO_H3100_QMUTE; | |
255 | break; | |
256 | case IPAQ_EGPIO_OPT_NVRAM_ON: | |
257 | egpio |= EGPIO_H3600_OPT_NVRAM_ON; | |
258 | break; | |
259 | case IPAQ_EGPIO_OPT_ON: | |
260 | egpio |= EGPIO_H3600_OPT_ON; | |
261 | break; | |
262 | case IPAQ_EGPIO_CARD_RESET: | |
263 | egpio |= EGPIO_H3600_CARD_RESET; | |
264 | break; | |
265 | case IPAQ_EGPIO_OPT_RESET: | |
266 | egpio |= EGPIO_H3600_OPT_RESET; | |
267 | break; | |
268 | case IPAQ_EGPIO_IR_ON: | |
269 | gpio |= GPIO_H3100_IR_ON; | |
270 | break; | |
271 | case IPAQ_EGPIO_IR_FSEL: | |
272 | gpio |= GPIO_H3100_IR_FSEL; | |
273 | break; | |
274 | case IPAQ_EGPIO_RS232_ON: | |
275 | egpio |= EGPIO_H3600_RS232_ON; | |
276 | break; | |
277 | case IPAQ_EGPIO_VPP_ON: | |
278 | egpio |= EGPIO_H3600_VPP_ON; | |
279 | break; | |
280 | } | |
281 | ||
282 | if (egpio || gpio) { | |
283 | local_irq_save(flags); | |
284 | if (setp) { | |
285 | h3100_egpio |= egpio; | |
286 | GPSR = gpio; | |
287 | } else { | |
288 | h3100_egpio &= ~egpio; | |
289 | GPCR = gpio; | |
290 | } | |
291 | H3100_EGPIO = h3100_egpio; | |
292 | local_irq_restore(flags); | |
293 | } | |
294 | } | |
295 | ||
1da177e4 LT |
296 | #define H3100_DIRECT_EGPIO (GPIO_H3100_BT_ON \ |
297 | | GPIO_H3100_GPIO3 \ | |
298 | | GPIO_H3100_QMUTE \ | |
299 | | GPIO_H3100_LCD_3V_ON \ | |
300 | | GPIO_H3100_AUD_ON \ | |
301 | | GPIO_H3100_AUD_PWR_ON \ | |
302 | | GPIO_H3100_IR_ON \ | |
303 | | GPIO_H3100_IR_FSEL) | |
304 | ||
305 | static void __init h3100_map_io(void) | |
306 | { | |
307 | h3xxx_map_io(); | |
308 | ||
309 | /* Initialize h3100-specific values here */ | |
310 | GPCR = 0x0fffffff; /* All outputs are set low by default */ | |
311 | GPDR = GPIO_H3600_COM_RTS | GPIO_H3600_L3_CLOCK | | |
312 | GPIO_H3600_L3_MODE | GPIO_H3600_L3_DATA | | |
313 | GPIO_H3600_CLK_SET1 | GPIO_H3600_CLK_SET0 | | |
314 | H3100_DIRECT_EGPIO; | |
315 | ||
316 | /* Older bootldrs put GPIO2-9 in alternate mode on the | |
317 | assumption that they are used for video */ | |
318 | GAFR &= ~H3100_DIRECT_EGPIO; | |
319 | ||
320 | H3100_EGPIO = h3100_egpio; | |
607b067e | 321 | assign_h3600_egpio = h3100_control_egpio; |
1da177e4 LT |
322 | } |
323 | ||
324 | MACHINE_START(H3100, "Compaq iPAQ H3100") | |
e9dea0c6 RK |
325 | .phys_io = 0x80000000, |
326 | .io_pg_offst = ((0xf8000000) >> 18) & 0xfffc, | |
327 | .boot_params = 0xc0000100, | |
328 | .map_io = h3100_map_io, | |
329 | .init_irq = sa1100_init_irq, | |
1da177e4 LT |
330 | .timer = &sa1100_timer, |
331 | .init_machine = h3xxx_mach_init, | |
332 | MACHINE_END | |
333 | ||
334 | #endif /* CONFIG_SA1100_H3100 */ | |
335 | ||
336 | /************************* H3600 *************************/ | |
337 | ||
338 | #ifdef CONFIG_SA1100_H3600 | |
339 | ||
340 | #define H3600_EGPIO (*(volatile unsigned int *)H3600_EGPIO_VIRT) | |
341 | static unsigned int h3600_egpio = EGPIO_H3600_RS232_ON; | |
342 | ||
343 | static void h3600_control_egpio(enum ipaq_egpio_type x, int setp) | |
344 | { | |
345 | unsigned int egpio = 0; | |
346 | unsigned long flags; | |
347 | ||
348 | switch (x) { | |
349 | case IPAQ_EGPIO_LCD_POWER: | |
350 | egpio |= EGPIO_H3600_LCD_ON | | |
351 | EGPIO_H3600_LCD_PCI | | |
352 | EGPIO_H3600_LCD_5V_ON | | |
353 | EGPIO_H3600_LVDD_ON; | |
1da177e4 LT |
354 | break; |
355 | case IPAQ_EGPIO_LCD_ENABLE: | |
356 | break; | |
357 | case IPAQ_EGPIO_CODEC_NRESET: | |
358 | egpio |= EGPIO_H3600_CODEC_NRESET; | |
359 | break; | |
360 | case IPAQ_EGPIO_AUDIO_ON: | |
361 | egpio |= EGPIO_H3600_AUD_AMP_ON | | |
362 | EGPIO_H3600_AUD_PWR_ON; | |
363 | break; | |
364 | case IPAQ_EGPIO_QMUTE: | |
365 | egpio |= EGPIO_H3600_QMUTE; | |
366 | break; | |
367 | case IPAQ_EGPIO_OPT_NVRAM_ON: | |
368 | egpio |= EGPIO_H3600_OPT_NVRAM_ON; | |
369 | break; | |
370 | case IPAQ_EGPIO_OPT_ON: | |
371 | egpio |= EGPIO_H3600_OPT_ON; | |
372 | break; | |
373 | case IPAQ_EGPIO_CARD_RESET: | |
374 | egpio |= EGPIO_H3600_CARD_RESET; | |
375 | break; | |
376 | case IPAQ_EGPIO_OPT_RESET: | |
377 | egpio |= EGPIO_H3600_OPT_RESET; | |
378 | break; | |
379 | case IPAQ_EGPIO_IR_ON: | |
380 | egpio |= EGPIO_H3600_IR_ON; | |
381 | break; | |
382 | case IPAQ_EGPIO_IR_FSEL: | |
383 | egpio |= EGPIO_H3600_IR_FSEL; | |
384 | break; | |
385 | case IPAQ_EGPIO_RS232_ON: | |
386 | egpio |= EGPIO_H3600_RS232_ON; | |
387 | break; | |
388 | case IPAQ_EGPIO_VPP_ON: | |
389 | egpio |= EGPIO_H3600_VPP_ON; | |
390 | break; | |
391 | } | |
392 | ||
393 | if (egpio) { | |
394 | local_irq_save(flags); | |
395 | if (setp) | |
396 | h3600_egpio |= egpio; | |
397 | else | |
398 | h3600_egpio &= ~egpio; | |
399 | H3600_EGPIO = h3600_egpio; | |
400 | local_irq_restore(flags); | |
401 | } | |
402 | } | |
403 | ||
1da177e4 LT |
404 | static void __init h3600_map_io(void) |
405 | { | |
406 | h3xxx_map_io(); | |
407 | ||
408 | /* Initialize h3600-specific values here */ | |
409 | ||
410 | GPCR = 0x0fffffff; /* All outputs are set low by default */ | |
411 | GPDR = GPIO_H3600_COM_RTS | GPIO_H3600_L3_CLOCK | | |
412 | GPIO_H3600_L3_MODE | GPIO_H3600_L3_DATA | | |
413 | GPIO_H3600_CLK_SET1 | GPIO_H3600_CLK_SET0 | | |
414 | GPIO_LDD15 | GPIO_LDD14 | GPIO_LDD13 | GPIO_LDD12 | | |
415 | GPIO_LDD11 | GPIO_LDD10 | GPIO_LDD9 | GPIO_LDD8; | |
416 | ||
417 | H3600_EGPIO = h3600_egpio; /* Maintains across sleep? */ | |
607b067e | 418 | assign_h3600_egpio = h3600_control_egpio; |
1da177e4 LT |
419 | } |
420 | ||
421 | MACHINE_START(H3600, "Compaq iPAQ H3600") | |
e9dea0c6 RK |
422 | .phys_io = 0x80000000, |
423 | .io_pg_offst = ((0xf8000000) >> 18) & 0xfffc, | |
424 | .boot_params = 0xc0000100, | |
425 | .map_io = h3600_map_io, | |
426 | .init_irq = sa1100_init_irq, | |
1da177e4 LT |
427 | .timer = &sa1100_timer, |
428 | .init_machine = h3xxx_mach_init, | |
429 | MACHINE_END | |
430 | ||
431 | #endif /* CONFIG_SA1100_H3600 */ | |
432 |