Commit | Line | Data |
---|---|---|
2a23ec36 JM |
1 | /* |
2 | * linux/arch/arm/mach-pxa/balloon3.c | |
3 | * | |
4 | * Support for Balloonboard.org Balloon3 board. | |
5 | * | |
6 | * Author: Nick Bane, Wookey, Jonathan McDowell | |
7 | * Created: June, 2006 | |
8 | * Copyright: Toby Churchill Ltd | |
9 | * Derived from mainstone.c, by Nico Pitre | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License version 2 as | |
13 | * published by the Free Software Foundation. | |
14 | */ | |
15 | ||
16 | #include <linux/init.h> | |
17 | #include <linux/platform_device.h> | |
18 | #include <linux/sysdev.h> | |
19 | #include <linux/interrupt.h> | |
20 | #include <linux/sched.h> | |
21 | #include <linux/bitops.h> | |
22 | #include <linux/fb.h> | |
23 | #include <linux/gpio.h> | |
24 | #include <linux/ioport.h> | |
25 | #include <linux/mtd/mtd.h> | |
26 | #include <linux/mtd/partitions.h> | |
27 | #include <linux/types.h> | |
28 | ||
29 | #include <asm/setup.h> | |
30 | #include <asm/mach-types.h> | |
31 | #include <asm/irq.h> | |
32 | #include <asm/sizes.h> | |
33 | ||
34 | #include <asm/mach/arch.h> | |
35 | #include <asm/mach/map.h> | |
36 | #include <asm/mach/irq.h> | |
37 | #include <asm/mach/flash.h> | |
38 | ||
39 | #include <mach/pxa27x.h> | |
40 | #include <mach/balloon3.h> | |
41 | #include <mach/audio.h> | |
42 | #include <mach/pxafb.h> | |
43 | #include <mach/mmc.h> | |
44 | #include <mach/udc.h> | |
45 | #include <mach/pxa27x-udc.h> | |
46 | #include <mach/irda.h> | |
47 | #include <mach/ohci.h> | |
48 | ||
49 | #include <plat/i2c.h> | |
50 | ||
51 | #include "generic.h" | |
52 | #include "devices.h" | |
53 | ||
54 | static unsigned long balloon3_irq_enabled; | |
55 | ||
56 | static unsigned long balloon3_features_present = | |
57 | (1 << BALLOON3_FEATURE_OHCI) | (1 << BALLOON3_FEATURE_CF) | | |
58 | (1 << BALLOON3_FEATURE_AUDIO) | | |
59 | (1 << BALLOON3_FEATURE_TOPPOLY); | |
60 | ||
61 | int balloon3_has(enum balloon3_features feature) | |
62 | { | |
63 | return (balloon3_features_present & (1 << feature)) ? 1 : 0; | |
64 | } | |
65 | EXPORT_SYMBOL_GPL(balloon3_has); | |
66 | ||
67 | int __init parse_balloon3_features(char *arg) | |
68 | { | |
69 | if (!arg) | |
70 | return 0; | |
71 | ||
72 | return strict_strtoul(arg, 0, &balloon3_features_present); | |
73 | } | |
74 | early_param("balloon3_features", parse_balloon3_features); | |
75 | ||
76 | static void balloon3_mask_irq(unsigned int irq) | |
77 | { | |
78 | int balloon3_irq = (irq - BALLOON3_IRQ(0)); | |
79 | balloon3_irq_enabled &= ~(1 << balloon3_irq); | |
80 | __raw_writel(~balloon3_irq_enabled, BALLOON3_INT_CONTROL_REG); | |
81 | } | |
82 | ||
83 | static void balloon3_unmask_irq(unsigned int irq) | |
84 | { | |
85 | int balloon3_irq = (irq - BALLOON3_IRQ(0)); | |
86 | balloon3_irq_enabled |= (1 << balloon3_irq); | |
87 | __raw_writel(~balloon3_irq_enabled, BALLOON3_INT_CONTROL_REG); | |
88 | } | |
89 | ||
90 | static struct irq_chip balloon3_irq_chip = { | |
91 | .name = "FPGA", | |
92 | .ack = balloon3_mask_irq, | |
93 | .mask = balloon3_mask_irq, | |
94 | .unmask = balloon3_unmask_irq, | |
95 | }; | |
96 | ||
97 | static void balloon3_irq_handler(unsigned int irq, struct irq_desc *desc) | |
98 | { | |
99 | unsigned long pending = __raw_readl(BALLOON3_INT_CONTROL_REG) & | |
100 | balloon3_irq_enabled; | |
101 | ||
102 | do { | |
103 | /* clear useless edge notification */ | |
104 | if (desc->chip->ack) | |
105 | desc->chip->ack(BALLOON3_AUX_NIRQ); | |
106 | while (pending) { | |
107 | irq = BALLOON3_IRQ(0) + __ffs(pending); | |
108 | generic_handle_irq(irq); | |
109 | pending &= pending - 1; | |
110 | } | |
111 | pending = __raw_readl(BALLOON3_INT_CONTROL_REG) & | |
112 | balloon3_irq_enabled; | |
113 | } while (pending); | |
114 | } | |
115 | ||
116 | static void __init balloon3_init_irq(void) | |
117 | { | |
118 | int irq; | |
119 | ||
120 | pxa27x_init_irq(); | |
121 | /* setup extra Balloon3 irqs */ | |
122 | for (irq = BALLOON3_IRQ(0); irq <= BALLOON3_IRQ(7); irq++) { | |
123 | set_irq_chip(irq, &balloon3_irq_chip); | |
124 | set_irq_handler(irq, handle_level_irq); | |
125 | set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); | |
126 | } | |
127 | ||
128 | set_irq_chained_handler(BALLOON3_AUX_NIRQ, balloon3_irq_handler); | |
129 | set_irq_type(BALLOON3_AUX_NIRQ, IRQ_TYPE_EDGE_FALLING); | |
130 | ||
131 | pr_debug("%s: chained handler installed - irq %d automatically " | |
132 | "enabled\n", __func__, BALLOON3_AUX_NIRQ); | |
133 | } | |
134 | ||
135 | static void balloon3_backlight_power(int on) | |
136 | { | |
137 | pr_debug("%s: power is %s\n", __func__, on ? "on" : "off"); | |
138 | gpio_set_value(BALLOON3_GPIO_RUN_BACKLIGHT, on); | |
139 | } | |
140 | ||
141 | static unsigned long balloon3_lcd_pin_config[] = { | |
142 | /* LCD - 16bpp Active TFT */ | |
143 | GPIO58_LCD_LDD_0, | |
144 | GPIO59_LCD_LDD_1, | |
145 | GPIO60_LCD_LDD_2, | |
146 | GPIO61_LCD_LDD_3, | |
147 | GPIO62_LCD_LDD_4, | |
148 | GPIO63_LCD_LDD_5, | |
149 | GPIO64_LCD_LDD_6, | |
150 | GPIO65_LCD_LDD_7, | |
151 | GPIO66_LCD_LDD_8, | |
152 | GPIO67_LCD_LDD_9, | |
153 | GPIO68_LCD_LDD_10, | |
154 | GPIO69_LCD_LDD_11, | |
155 | GPIO70_LCD_LDD_12, | |
156 | GPIO71_LCD_LDD_13, | |
157 | GPIO72_LCD_LDD_14, | |
158 | GPIO73_LCD_LDD_15, | |
159 | GPIO74_LCD_FCLK, | |
160 | GPIO75_LCD_LCLK, | |
161 | GPIO76_LCD_PCLK, | |
162 | GPIO77_LCD_BIAS, | |
163 | ||
164 | GPIO99_GPIO, /* Backlight */ | |
165 | }; | |
166 | ||
167 | static struct pxafb_mode_info balloon3_lcd_modes[] = { | |
168 | { | |
169 | .pixclock = 38000, | |
170 | .xres = 480, | |
171 | .yres = 640, | |
172 | .bpp = 16, | |
173 | .hsync_len = 8, | |
174 | .left_margin = 8, | |
175 | .right_margin = 8, | |
176 | .vsync_len = 2, | |
177 | .upper_margin = 4, | |
178 | .lower_margin = 5, | |
179 | .sync = 0, | |
180 | }, | |
181 | }; | |
182 | ||
183 | static struct pxafb_mach_info balloon3_pxafb_info = { | |
184 | .modes = balloon3_lcd_modes, | |
185 | .num_modes = ARRAY_SIZE(balloon3_lcd_modes), | |
186 | .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL, | |
187 | .pxafb_backlight_power = balloon3_backlight_power, | |
188 | }; | |
189 | ||
190 | static unsigned long balloon3_mmc_pin_config[] = { | |
191 | GPIO32_MMC_CLK, | |
192 | GPIO92_MMC_DAT_0, | |
193 | GPIO109_MMC_DAT_1, | |
194 | GPIO110_MMC_DAT_2, | |
195 | GPIO111_MMC_DAT_3, | |
196 | GPIO112_MMC_CMD, | |
197 | }; | |
198 | ||
199 | static void balloon3_mci_setpower(struct device *dev, unsigned int vdd) | |
200 | { | |
201 | struct pxamci_platform_data *p_d = dev->platform_data; | |
202 | ||
203 | if ((1 << vdd) & p_d->ocr_mask) { | |
204 | pr_debug("%s: on\n", __func__); | |
205 | /* FIXME something to prod here? */ | |
206 | } else { | |
207 | pr_debug("%s: off\n", __func__); | |
208 | /* FIXME something to prod here? */ | |
209 | } | |
210 | } | |
211 | ||
212 | static struct pxamci_platform_data balloon3_mci_platform_data = { | |
213 | .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, | |
214 | .setpower = balloon3_mci_setpower, | |
215 | }; | |
216 | ||
217 | static int balloon3_udc_is_connected(void) | |
218 | { | |
219 | pr_debug("%s: udc connected\n", __func__); | |
220 | return 1; | |
221 | } | |
222 | ||
223 | static void balloon3_udc_command(int cmd) | |
224 | { | |
225 | switch (cmd) { | |
226 | case PXA2XX_UDC_CMD_CONNECT: | |
227 | UP2OCR |= (UP2OCR_DPPUE + UP2OCR_DPPUBE); | |
228 | pr_debug("%s: connect\n", __func__); | |
229 | break; | |
230 | case PXA2XX_UDC_CMD_DISCONNECT: | |
231 | UP2OCR &= ~UP2OCR_DPPUE; | |
232 | pr_debug("%s: disconnect\n", __func__); | |
233 | break; | |
234 | } | |
235 | } | |
236 | ||
237 | static struct pxa2xx_udc_mach_info balloon3_udc_info = { | |
238 | .udc_is_connected = balloon3_udc_is_connected, | |
239 | .udc_command = balloon3_udc_command, | |
240 | }; | |
241 | ||
242 | static struct pxaficp_platform_data balloon3_ficp_platform_data = { | |
243 | .transceiver_cap = IR_SIRMODE | IR_FIRMODE | IR_OFF, | |
244 | }; | |
245 | ||
246 | static unsigned long balloon3_ohci_pin_config[] = { | |
247 | GPIO88_USBH1_PWR, | |
248 | GPIO89_USBH1_PEN, | |
249 | }; | |
250 | ||
251 | static struct pxaohci_platform_data balloon3_ohci_platform_data = { | |
252 | .port_mode = PMM_PERPORT_MODE, | |
253 | .flags = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW, | |
254 | }; | |
255 | ||
256 | static unsigned long balloon3_pin_config[] __initdata = { | |
257 | /* Select BTUART 'COM1/ttyS0' as IO option for pins 42/43/44/45 */ | |
258 | GPIO42_BTUART_RXD, | |
259 | GPIO43_BTUART_TXD, | |
260 | GPIO44_BTUART_CTS, | |
261 | GPIO45_BTUART_RTS, | |
262 | ||
263 | /* Wakeup GPIO */ | |
264 | GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH, | |
265 | ||
266 | /* NAND & IDLE LED GPIOs */ | |
267 | GPIO9_GPIO, | |
268 | GPIO10_GPIO, | |
269 | }; | |
270 | ||
271 | static struct gpio_led balloon3_gpio_leds[] = { | |
272 | { | |
273 | .name = "balloon3:green:idle", | |
274 | .default_trigger = "heartbeat", | |
275 | .gpio = BALLOON3_GPIO_LED_IDLE, | |
276 | .active_low = 1, | |
277 | }, | |
278 | { | |
279 | .name = "balloon3:green:nand", | |
280 | .default_trigger = "nand-disk", | |
281 | .gpio = BALLOON3_GPIO_LED_NAND, | |
282 | .active_low = 1, | |
283 | }, | |
284 | }; | |
285 | ||
286 | static struct gpio_led_platform_data balloon3_gpio_leds_platform_data = { | |
287 | .leds = balloon3_gpio_leds, | |
288 | .num_leds = ARRAY_SIZE(balloon3_gpio_leds), | |
289 | }; | |
290 | ||
291 | static struct platform_device balloon3led_device = { | |
292 | .name = "leds-gpio", | |
293 | .id = -1, | |
294 | .dev = { | |
295 | .platform_data = &balloon3_gpio_leds_platform_data, | |
296 | }, | |
297 | }; | |
298 | ||
299 | static void __init balloon3_init(void) | |
300 | { | |
301 | pr_info("Initialising Balloon3\n"); | |
302 | ||
303 | /* system bus arbiter setting | |
304 | * - Core_Park | |
305 | * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4 | |
306 | */ | |
307 | ARB_CNTRL = ARB_CORE_PARK | 0x234; | |
308 | ||
309 | pxa_set_i2c_info(NULL); | |
310 | if (balloon3_has(BALLOON3_FEATURE_AUDIO)) | |
311 | pxa_set_ac97_info(NULL); | |
312 | ||
313 | if (balloon3_has(BALLOON3_FEATURE_TOPPOLY)) { | |
314 | pxa2xx_mfp_config(ARRAY_AND_SIZE(balloon3_lcd_pin_config)); | |
315 | gpio_request(BALLOON3_GPIO_RUN_BACKLIGHT, | |
316 | "LCD Backlight Power"); | |
317 | gpio_direction_output(BALLOON3_GPIO_RUN_BACKLIGHT, 1); | |
318 | set_pxa_fb_info(&balloon3_pxafb_info); | |
319 | } | |
320 | ||
321 | if (balloon3_has(BALLOON3_FEATURE_MMC)) { | |
322 | pxa2xx_mfp_config(ARRAY_AND_SIZE(balloon3_mmc_pin_config)); | |
323 | pxa_set_mci_info(&balloon3_mci_platform_data); | |
324 | } | |
325 | pxa_set_ficp_info(&balloon3_ficp_platform_data); | |
326 | if (balloon3_has(BALLOON3_FEATURE_OHCI)) { | |
327 | pxa2xx_mfp_config(ARRAY_AND_SIZE(balloon3_ohci_pin_config)); | |
328 | pxa_set_ohci_info(&balloon3_ohci_platform_data); | |
329 | } | |
330 | pxa_set_udc_info(&balloon3_udc_info); | |
331 | ||
332 | pxa2xx_mfp_config(ARRAY_AND_SIZE(balloon3_pin_config)); | |
333 | ||
334 | platform_device_register(&balloon3led_device); | |
335 | } | |
336 | ||
337 | static struct map_desc balloon3_io_desc[] __initdata = { | |
338 | { /* CPLD/FPGA */ | |
339 | .virtual = BALLOON3_FPGA_VIRT, | |
340 | .pfn = __phys_to_pfn(BALLOON3_FPGA_PHYS), | |
341 | .length = BALLOON3_FPGA_LENGTH, | |
342 | .type = MT_DEVICE, | |
343 | }, | |
344 | }; | |
345 | ||
346 | static void __init balloon3_map_io(void) | |
347 | { | |
348 | pxa_map_io(); | |
349 | iotable_init(balloon3_io_desc, ARRAY_SIZE(balloon3_io_desc)); | |
350 | } | |
351 | ||
352 | MACHINE_START(BALLOON3, "Balloon3") | |
353 | /* Maintainer: Nick Bane. */ | |
354 | .phys_io = 0x40000000, | |
355 | .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, | |
356 | .map_io = balloon3_map_io, | |
357 | .init_irq = balloon3_init_irq, | |
358 | .timer = &pxa_timer, | |
359 | .init_machine = balloon3_init, | |
360 | .boot_params = PHYS_OFFSET + 0x100, | |
361 | MACHINE_END |