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8459c159 DO |
1 | /* |
2 | * Support for Sharp SL-C6000x PDAs | |
3 | * Model: (Tosa) | |
4 | * | |
5 | * Copyright (c) 2005 Dirk Opfer | |
6 | * | |
7 | * Based on code written by Sharp/Lineo for 2.4 kernels | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License version 2 as | |
11 | * published by the Free Software Foundation. | |
12 | * | |
13 | */ | |
14 | ||
15 | #include <linux/kernel.h> | |
16 | #include <linux/init.h> | |
067c9048 | 17 | #include <linux/platform_device.h> |
8459c159 DO |
18 | #include <linux/major.h> |
19 | #include <linux/fs.h> | |
20 | #include <linux/interrupt.h> | |
21 | #include <linux/mmc/host.h> | |
74617fb6 | 22 | #include <linux/pm.h> |
905f1467 | 23 | #include <linux/delay.h> |
8459c159 DO |
24 | |
25 | #include <asm/setup.h> | |
26 | #include <asm/memory.h> | |
27 | #include <asm/mach-types.h> | |
28 | #include <asm/hardware.h> | |
29 | #include <asm/irq.h> | |
74617fb6 | 30 | #include <asm/system.h> |
8459c159 DO |
31 | #include <asm/arch/irda.h> |
32 | #include <asm/arch/mmc.h> | |
33 | #include <asm/arch/udc.h> | |
34 | ||
35 | #include <asm/mach/arch.h> | |
36 | #include <asm/mach/map.h> | |
37 | #include <asm/mach/irq.h> | |
38 | ||
39 | #include <asm/arch/pxa-regs.h> | |
8459c159 DO |
40 | #include <asm/arch/tosa.h> |
41 | ||
42 | #include <asm/hardware/scoop.h> | |
43 | #include <asm/mach/sharpsl_param.h> | |
44 | ||
45 | #include "generic.h" | |
46 | ||
47 | ||
48 | /* | |
49 | * SCOOP Device | |
50 | */ | |
51 | static struct resource tosa_scoop_resources[] = { | |
52 | [0] = { | |
53 | .start = TOSA_CF_PHYS, | |
54 | .end = TOSA_CF_PHYS + 0xfff, | |
55 | .flags = IORESOURCE_MEM, | |
56 | }, | |
57 | }; | |
58 | ||
59 | static struct scoop_config tosa_scoop_setup = { | |
60 | .io_dir = TOSA_SCOOP_IO_DIR, | |
61 | .io_out = TOSA_SCOOP_IO_OUT, | |
62 | ||
63 | }; | |
64 | ||
65 | struct platform_device tosascoop_device = { | |
66 | .name = "sharp-scoop", | |
67 | .id = 0, | |
68 | .dev = { | |
69 | .platform_data = &tosa_scoop_setup, | |
70 | }, | |
71 | .num_resources = ARRAY_SIZE(tosa_scoop_resources), | |
72 | .resource = tosa_scoop_resources, | |
73 | }; | |
74 | ||
75 | ||
76 | /* | |
77 | * SCOOP Device Jacket | |
78 | */ | |
79 | static struct resource tosa_scoop_jc_resources[] = { | |
80 | [0] = { | |
81 | .start = TOSA_SCOOP_PHYS + 0x40, | |
82 | .end = TOSA_SCOOP_PHYS + 0xfff, | |
83 | .flags = IORESOURCE_MEM, | |
84 | }, | |
85 | }; | |
86 | ||
87 | static struct scoop_config tosa_scoop_jc_setup = { | |
88 | .io_dir = TOSA_SCOOP_JC_IO_DIR, | |
89 | .io_out = TOSA_SCOOP_JC_IO_OUT, | |
90 | }; | |
91 | ||
92 | struct platform_device tosascoop_jc_device = { | |
93 | .name = "sharp-scoop", | |
94 | .id = 1, | |
95 | .dev = { | |
96 | .platform_data = &tosa_scoop_jc_setup, | |
97 | .parent = &tosascoop_device.dev, | |
98 | }, | |
99 | .num_resources = ARRAY_SIZE(tosa_scoop_jc_resources), | |
100 | .resource = tosa_scoop_jc_resources, | |
101 | }; | |
102 | ||
4c18ad20 DO |
103 | /* |
104 | * PCMCIA | |
105 | */ | |
8459c159 DO |
106 | static struct scoop_pcmcia_dev tosa_pcmcia_scoop[] = { |
107 | { | |
108 | .dev = &tosascoop_device.dev, | |
109 | .irq = TOSA_IRQ_GPIO_CF_IRQ, | |
110 | .cd_irq = TOSA_IRQ_GPIO_CF_CD, | |
111 | .cd_irq_str = "PCMCIA0 CD", | |
112 | },{ | |
113 | .dev = &tosascoop_jc_device.dev, | |
114 | .irq = TOSA_IRQ_GPIO_JC_CF_IRQ, | |
115 | .cd_irq = -1, | |
116 | }, | |
117 | }; | |
118 | ||
4c18ad20 DO |
119 | static void tosa_pcmcia_init(void) |
120 | { | |
121 | /* Setup default state of GPIO outputs | |
122 | before we enable them as outputs. */ | |
123 | GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) | | |
124 | GPIO_bit(GPIO49_nPWE) | GPIO_bit(GPIO50_nPIOR) | | |
125 | GPIO_bit(GPIO51_nPIOW) | GPIO_bit(GPIO52_nPCE_1) | | |
126 | GPIO_bit(GPIO53_nPCE_2); | |
127 | ||
128 | pxa_gpio_mode(GPIO48_nPOE_MD); | |
129 | pxa_gpio_mode(GPIO49_nPWE_MD); | |
130 | pxa_gpio_mode(GPIO50_nPIOR_MD); | |
131 | pxa_gpio_mode(GPIO51_nPIOW_MD); | |
132 | pxa_gpio_mode(GPIO55_nPREG_MD); | |
133 | pxa_gpio_mode(GPIO56_nPWAIT_MD); | |
134 | pxa_gpio_mode(GPIO57_nIOIS16_MD); | |
135 | pxa_gpio_mode(GPIO52_nPCE_1_MD); | |
136 | pxa_gpio_mode(GPIO53_nPCE_2_MD); | |
137 | pxa_gpio_mode(GPIO54_pSKTSEL_MD); | |
138 | } | |
139 | ||
140 | static struct scoop_pcmcia_config tosa_pcmcia_config = { | |
141 | .devs = &tosa_pcmcia_scoop[0], | |
142 | .num_devs = 2, | |
143 | .pcmcia_init = tosa_pcmcia_init, | |
144 | }; | |
145 | ||
a93876c1 DO |
146 | /* |
147 | * USB Device Controller | |
148 | */ | |
149 | static void tosa_udc_command(int cmd) | |
150 | { | |
151 | switch(cmd) { | |
152 | case PXA2XX_UDC_CMD_CONNECT: | |
153 | set_scoop_gpio(&tosascoop_jc_device.dev,TOSA_SCOOP_JC_USB_PULLUP); | |
154 | break; | |
155 | case PXA2XX_UDC_CMD_DISCONNECT: | |
156 | reset_scoop_gpio(&tosascoop_jc_device.dev,TOSA_SCOOP_JC_USB_PULLUP); | |
157 | break; | |
158 | } | |
159 | } | |
160 | ||
161 | static int tosa_udc_is_connected(void) | |
162 | { | |
163 | return ((GPLR(TOSA_GPIO_USB_IN) & GPIO_bit(TOSA_GPIO_USB_IN)) == 0); | |
164 | } | |
165 | ||
166 | ||
167 | static struct pxa2xx_udc_mach_info udc_info __initdata = { | |
168 | .udc_command = tosa_udc_command, | |
169 | .udc_is_connected = tosa_udc_is_connected, | |
170 | }; | |
171 | ||
172 | /* | |
173 | * MMC/SD Device | |
174 | */ | |
175 | static struct pxamci_platform_data tosa_mci_platform_data; | |
176 | ||
0cd61b68 | 177 | static int tosa_mci_init(struct device *dev, irqreturn_t (*tosa_detect_int)(int, void *), void *data) |
a93876c1 DO |
178 | { |
179 | int err; | |
180 | ||
181 | /* setup GPIO for PXA25x MMC controller */ | |
182 | pxa_gpio_mode(GPIO6_MMCCLK_MD); | |
183 | pxa_gpio_mode(GPIO8_MMCCS0_MD); | |
184 | pxa_gpio_mode(TOSA_GPIO_nSD_DETECT | GPIO_IN); | |
185 | ||
186 | tosa_mci_platform_data.detect_delay = msecs_to_jiffies(250); | |
187 | ||
52e405ea | 188 | err = request_irq(TOSA_IRQ_GPIO_nSD_DETECT, tosa_detect_int, IRQF_DISABLED, |
a93876c1 DO |
189 | "MMC/SD card detect", data); |
190 | if (err) { | |
191 | printk(KERN_ERR "tosa_mci_init: MMC/SD: can't request MMC card detect IRQ\n"); | |
192 | return -1; | |
193 | } | |
194 | ||
195 | set_irq_type(TOSA_IRQ_GPIO_nSD_DETECT, IRQT_BOTHEDGE); | |
196 | ||
197 | return 0; | |
198 | } | |
199 | ||
200 | static void tosa_mci_setpower(struct device *dev, unsigned int vdd) | |
201 | { | |
202 | struct pxamci_platform_data* p_d = dev->platform_data; | |
203 | ||
204 | if (( 1 << vdd) & p_d->ocr_mask) { | |
205 | set_scoop_gpio(&tosascoop_device.dev,TOSA_SCOOP_PWR_ON); | |
206 | } else { | |
207 | reset_scoop_gpio(&tosascoop_device.dev,TOSA_SCOOP_PWR_ON); | |
208 | } | |
209 | } | |
210 | ||
211 | static int tosa_mci_get_ro(struct device *dev) | |
212 | { | |
213 | return (read_scoop_reg(&tosascoop_device.dev, SCOOP_GPWR)&TOSA_SCOOP_SD_WP); | |
214 | } | |
215 | ||
216 | static void tosa_mci_exit(struct device *dev, void *data) | |
217 | { | |
218 | free_irq(TOSA_IRQ_GPIO_nSD_DETECT, data); | |
219 | } | |
220 | ||
221 | static struct pxamci_platform_data tosa_mci_platform_data = { | |
222 | .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, | |
223 | .init = tosa_mci_init, | |
224 | .get_ro = tosa_mci_get_ro, | |
225 | .setpower = tosa_mci_setpower, | |
226 | .exit = tosa_mci_exit, | |
227 | }; | |
228 | ||
229 | /* | |
230 | * Irda | |
231 | */ | |
232 | static void tosa_irda_transceiver_mode(struct device *dev, int mode) | |
233 | { | |
234 | if (mode & IR_OFF) { | |
235 | reset_scoop_gpio(&tosascoop_device.dev,TOSA_SCOOP_IR_POWERDWN); | |
236 | pxa_gpio_mode(GPIO47_STTXD|GPIO_DFLT_LOW); | |
237 | pxa_gpio_mode(GPIO47_STTXD|GPIO_OUT); | |
238 | } else { | |
239 | pxa_gpio_mode(GPIO47_STTXD_MD); | |
240 | set_scoop_gpio(&tosascoop_device.dev,TOSA_SCOOP_IR_POWERDWN); | |
241 | } | |
242 | } | |
243 | ||
244 | static struct pxaficp_platform_data tosa_ficp_platform_data = { | |
245 | .transceiver_cap = IR_SIRMODE | IR_OFF, | |
246 | .transceiver_mode = tosa_irda_transceiver_mode, | |
247 | }; | |
248 | ||
249 | /* | |
250 | * Tosa Keyboard | |
251 | */ | |
252 | static struct platform_device tosakbd_device = { | |
253 | .name = "tosa-keyboard", | |
254 | .id = -1, | |
255 | }; | |
8459c159 | 256 | |
6d0cf3e0 DO |
257 | /* |
258 | * Tosa LEDs | |
259 | */ | |
260 | static struct platform_device tosaled_device = { | |
261 | .name = "tosa-led", | |
262 | .id = -1, | |
263 | }; | |
264 | ||
8459c159 DO |
265 | static struct platform_device *devices[] __initdata = { |
266 | &tosascoop_device, | |
267 | &tosascoop_jc_device, | |
a93876c1 | 268 | &tosakbd_device, |
6d0cf3e0 | 269 | &tosaled_device, |
8459c159 DO |
270 | }; |
271 | ||
74617fb6 RP |
272 | static void tosa_poweroff(void) |
273 | { | |
274 | RCSR = RCSR_HWR | RCSR_WDR | RCSR_SMR | RCSR_GPR; | |
275 | ||
276 | pxa_gpio_mode(TOSA_GPIO_ON_RESET | GPIO_OUT); | |
277 | GPSR(TOSA_GPIO_ON_RESET) = GPIO_bit(TOSA_GPIO_ON_RESET); | |
278 | ||
279 | mdelay(1000); | |
280 | arm_machine_restart('h'); | |
281 | } | |
282 | ||
283 | static void tosa_restart(char mode) | |
284 | { | |
285 | /* Bootloader magic for a reboot */ | |
286 | if((MSC0 & 0xffff0000) == 0x7ff00000) | |
287 | MSC0 = (MSC0 & 0xffff) | 0x7ee00000; | |
288 | ||
289 | tosa_poweroff(); | |
290 | } | |
291 | ||
8459c159 DO |
292 | static void __init tosa_init(void) |
293 | { | |
74617fb6 RP |
294 | pm_power_off = tosa_poweroff; |
295 | arm_pm_restart = tosa_restart; | |
296 | ||
8459c159 DO |
297 | pxa_gpio_mode(TOSA_GPIO_ON_RESET | GPIO_IN); |
298 | pxa_gpio_mode(TOSA_GPIO_TC6393_INT | GPIO_IN); | |
a93876c1 | 299 | pxa_gpio_mode(TOSA_GPIO_USB_IN | GPIO_IN); |
8459c159 DO |
300 | |
301 | /* setup sleep mode values */ | |
302 | PWER = 0x00000002; | |
303 | PFER = 0x00000000; | |
304 | PRER = 0x00000002; | |
305 | PGSR0 = 0x00000000; | |
306 | PGSR1 = 0x00FF0002; | |
307 | PGSR2 = 0x00014000; | |
308 | PCFR |= PCFR_OPDE; | |
309 | ||
a93876c1 | 310 | /* enable batt_fault */ |
8459c159 DO |
311 | PMCR = 0x01; |
312 | ||
a93876c1 DO |
313 | pxa_set_mci_info(&tosa_mci_platform_data); |
314 | pxa_set_udc_info(&udc_info); | |
315 | pxa_set_ficp_info(&tosa_ficp_platform_data); | |
4c18ad20 | 316 | platform_scoop_config = &tosa_pcmcia_config; |
8459c159 | 317 | |
4c18ad20 | 318 | platform_add_devices(devices, ARRAY_SIZE(devices)); |
8459c159 DO |
319 | } |
320 | ||
321 | static void __init fixup_tosa(struct machine_desc *desc, | |
322 | struct tag *tags, char **cmdline, struct meminfo *mi) | |
323 | { | |
324 | sharpsl_save_param(); | |
325 | mi->nr_banks=1; | |
326 | mi->bank[0].start = 0xa0000000; | |
327 | mi->bank[0].node = 0; | |
328 | mi->bank[0].size = (64*1024*1024); | |
329 | } | |
330 | ||
331 | MACHINE_START(TOSA, "SHARP Tosa") | |
8459c159 DO |
332 | .phys_io = 0x40000000, |
333 | .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, | |
334 | .fixup = fixup_tosa, | |
335 | .map_io = pxa_map_io, | |
336 | .init_irq = pxa_init_irq, | |
337 | .init_machine = tosa_init, | |
338 | .timer = &pxa_timer, | |
339 | MACHINE_END |