xref: /openbmc/linux/arch/arm/mach-sa1100/collie.c (revision 95e9fd10) 
1 /*
2  * linux/arch/arm/mach-sa1100/collie.c
3  *
4  * May be copied or modified under the terms of the GNU General Public
5  * License.  See linux/COPYING for more information.
6  *
7  * This file contains all Collie-specific tweaks.
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  * ChangeLog:
14  *  2006 Pavel Machek <pavel@ucw.cz>
15  *  03-06-2004 John Lenz <lenz@cs.wisc.edu>
16  *  06-04-2002 Chris Larson <kergoth@digitalnemesis.net>
17  *  04-16-2001 Lineo Japan,Inc. ...
18  */
19 
20 #include <linux/init.h>
21 #include <linux/kernel.h>
22 #include <linux/tty.h>
23 #include <linux/delay.h>
24 #include <linux/platform_device.h>
25 #include <linux/mfd/ucb1x00.h>
26 #include <linux/mtd/mtd.h>
27 #include <linux/mtd/partitions.h>
28 #include <linux/timer.h>
29 #include <linux/gpio.h>
30 #include <linux/pda_power.h>
31 
32 #include <video/sa1100fb.h>
33 
34 #include <mach/hardware.h>
35 #include <asm/mach-types.h>
36 #include <asm/page.h>
37 #include <asm/setup.h>
38 #include <mach/collie.h>
39 
40 #include <asm/mach/arch.h>
41 #include <asm/mach/flash.h>
42 #include <asm/mach/map.h>
43 #include <asm/mach/serial_sa1100.h>
44 
45 #include <asm/hardware/scoop.h>
46 #include <asm/mach/sharpsl_param.h>
47 #include <asm/hardware/locomo.h>
48 #include <mach/mcp.h>
49 #include <mach/irqs.h>
50 
51 #include "generic.h"
52 
53 static struct resource collie_scoop_resources[] = {
54 	[0] = DEFINE_RES_MEM(0x40800000, SZ_4K),
55 };
56 
57 static struct scoop_config collie_scoop_setup = {
58 	.io_dir 	= COLLIE_SCOOP_IO_DIR,
59 	.io_out		= COLLIE_SCOOP_IO_OUT,
60 	.gpio_base	= COLLIE_SCOOP_GPIO_BASE,
61 };
62 
63 struct platform_device colliescoop_device = {
64 	.name		= "sharp-scoop",
65 	.id		= -1,
66 	.dev		= {
67  		.platform_data	= &collie_scoop_setup,
68 	},
69 	.num_resources	= ARRAY_SIZE(collie_scoop_resources),
70 	.resource	= collie_scoop_resources,
71 };
72 
73 static struct scoop_pcmcia_dev collie_pcmcia_scoop[] = {
74 	{
75 	.dev		= &colliescoop_device.dev,
76 	.irq		= COLLIE_IRQ_GPIO_CF_IRQ,
77 	.cd_irq		= COLLIE_IRQ_GPIO_CF_CD,
78 	.cd_irq_str	= "PCMCIA0 CD",
79 	},
80 };
81 
82 static struct scoop_pcmcia_config collie_pcmcia_config = {
83 	.devs		= &collie_pcmcia_scoop[0],
84 	.num_devs	= 1,
85 };
86 
87 static struct ucb1x00_plat_data collie_ucb1x00_data = {
88 	.gpio_base	= COLLIE_TC35143_GPIO_BASE,
89 };
90 
91 static struct mcp_plat_data collie_mcp_data = {
92 	.mccr0		= MCCR0_ADM | MCCR0_ExtClk,
93 	.sclk_rate	= 9216000,
94 	.codec_pdata	= &collie_ucb1x00_data,
95 };
96 
97 /*
98  * Collie AC IN
99  */
100 static int collie_power_init(struct device *dev)
101 {
102 	int ret = gpio_request(COLLIE_GPIO_AC_IN, "ac in");
103 	if (ret)
104 		goto err_gpio_req;
105 
106 	ret = gpio_direction_input(COLLIE_GPIO_AC_IN);
107 	if (ret)
108 		goto err_gpio_in;
109 
110 	return 0;
111 
112 err_gpio_in:
113 	gpio_free(COLLIE_GPIO_AC_IN);
114 err_gpio_req:
115 	return ret;
116 }
117 
118 static void collie_power_exit(struct device *dev)
119 {
120 	gpio_free(COLLIE_GPIO_AC_IN);
121 }
122 
123 static int collie_power_ac_online(void)
124 {
125 	return gpio_get_value(COLLIE_GPIO_AC_IN) == 2;
126 }
127 
128 static char *collie_ac_supplied_to[] = {
129 	"main-battery",
130 	"backup-battery",
131 };
132 
133 static struct pda_power_pdata collie_power_data = {
134 	.init			= collie_power_init,
135 	.is_ac_online		= collie_power_ac_online,
136 	.exit			= collie_power_exit,
137 	.supplied_to		= collie_ac_supplied_to,
138 	.num_supplicants	= ARRAY_SIZE(collie_ac_supplied_to),
139 };
140 
141 static struct resource collie_power_resource[] = {
142 	{
143 		.name		= "ac",
144 		.flags		= IORESOURCE_IRQ |
145 				  IORESOURCE_IRQ_HIGHEDGE |
146 				  IORESOURCE_IRQ_LOWEDGE,
147 	},
148 };
149 
150 static struct platform_device collie_power_device = {
151 	.name			= "pda-power",
152 	.id			= -1,
153 	.dev.platform_data	= &collie_power_data,
154 	.resource		= collie_power_resource,
155 	.num_resources		= ARRAY_SIZE(collie_power_resource),
156 };
157 
158 #ifdef CONFIG_SHARP_LOCOMO
159 /*
160  * low-level UART features.
161  */
162 struct platform_device collie_locomo_device;
163 
164 static void collie_uart_set_mctrl(struct uart_port *port, u_int mctrl)
165 {
166 	if (mctrl & TIOCM_RTS)
167 		locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 0);
168 	else
169 		locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 1);
170 
171 	if (mctrl & TIOCM_DTR)
172 		locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 0);
173 	else
174 		locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 1);
175 }
176 
177 static u_int collie_uart_get_mctrl(struct uart_port *port)
178 {
179 	int ret = TIOCM_CD;
180 	unsigned int r;
181 
182 	r = locomo_gpio_read_output(&collie_locomo_device.dev, LOCOMO_GPIO_CTS & LOCOMO_GPIO_DSR);
183 	if (r == -ENODEV)
184 		return ret;
185 	if (r & LOCOMO_GPIO_CTS)
186 		ret |= TIOCM_CTS;
187 	if (r & LOCOMO_GPIO_DSR)
188 		ret |= TIOCM_DSR;
189 
190 	return ret;
191 }
192 
193 static struct sa1100_port_fns collie_port_fns __initdata = {
194 	.set_mctrl	= collie_uart_set_mctrl,
195 	.get_mctrl	= collie_uart_get_mctrl,
196 };
197 
198 static int collie_uart_probe(struct locomo_dev *dev)
199 {
200 	return 0;
201 }
202 
203 static int collie_uart_remove(struct locomo_dev *dev)
204 {
205 	return 0;
206 }
207 
208 static struct locomo_driver collie_uart_driver = {
209 	.drv = {
210 		.name = "collie_uart",
211 	},
212 	.devid	= LOCOMO_DEVID_UART,
213 	.probe	= collie_uart_probe,
214 	.remove	= collie_uart_remove,
215 };
216 
217 static int __init collie_uart_init(void)
218 {
219 	return locomo_driver_register(&collie_uart_driver);
220 }
221 device_initcall(collie_uart_init);
222 
223 #endif
224 
225 
226 static struct resource locomo_resources[] = {
227 	[0] = DEFINE_RES_MEM(0x40000000, SZ_8K),
228 	[1] = DEFINE_RES_IRQ(IRQ_GPIO25),
229 };
230 
231 static struct locomo_platform_data locomo_info = {
232 	.irq_base	= IRQ_BOARD_START,
233 };
234 
235 struct platform_device collie_locomo_device = {
236 	.name		= "locomo",
237 	.id		= 0,
238 	.dev		= {
239 		.platform_data	= &locomo_info,
240 	},
241 	.num_resources	= ARRAY_SIZE(locomo_resources),
242 	.resource	= locomo_resources,
243 };
244 
245 static struct platform_device *devices[] __initdata = {
246 	&collie_locomo_device,
247 	&colliescoop_device,
248 	&collie_power_device,
249 };
250 
251 static struct mtd_partition collie_partitions[] = {
252 	{
253 		.name		= "bootloader",
254 		.offset 	= 0,
255 		.size		= 0x000C0000,
256 		.mask_flags	= MTD_WRITEABLE
257 	}, {
258 		.name		= "kernel",
259 		.offset 	= MTDPART_OFS_APPEND,
260 		.size		= 0x00100000,
261 	}, {
262 		.name		= "rootfs",
263 		.offset 	= MTDPART_OFS_APPEND,
264 		.size		= 0x00e20000,
265 	}
266 };
267 
268 static int collie_flash_init(void)
269 {
270 	int rc = gpio_request(COLLIE_GPIO_VPEN, "flash Vpp enable");
271 	if (rc)
272 		return rc;
273 
274 	rc = gpio_direction_output(COLLIE_GPIO_VPEN, 1);
275 	if (rc)
276 		gpio_free(COLLIE_GPIO_VPEN);
277 
278 	return rc;
279 }
280 
281 static void collie_set_vpp(int vpp)
282 {
283 	gpio_set_value(COLLIE_GPIO_VPEN, vpp);
284 }
285 
286 static void collie_flash_exit(void)
287 {
288 	gpio_free(COLLIE_GPIO_VPEN);
289 }
290 
291 static struct flash_platform_data collie_flash_data = {
292 	.map_name	= "cfi_probe",
293 	.init		= collie_flash_init,
294 	.set_vpp	= collie_set_vpp,
295 	.exit		= collie_flash_exit,
296 	.parts		= collie_partitions,
297 	.nr_parts	= ARRAY_SIZE(collie_partitions),
298 };
299 
300 static struct resource collie_flash_resources[] = {
301 	DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M),
302 };
303 
304 static struct sa1100fb_mach_info collie_lcd_info = {
305 	.pixclock	= 171521,	.bpp		= 16,
306 	.xres		= 320,		.yres		= 240,
307 
308 	.hsync_len	= 5,		.vsync_len	= 1,
309 	.left_margin	= 11,		.upper_margin	= 2,
310 	.right_margin	= 30,		.lower_margin	= 0,
311 
312 	.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
313 
314 	.lccr0		= LCCR0_Color | LCCR0_Sngl | LCCR0_Act,
315 	.lccr3		= LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2),
316 
317 #ifdef CONFIG_BACKLIGHT_LOCOMO
318 	.lcd_power	= locomolcd_power
319 #endif
320 };
321 
322 static void __init collie_init(void)
323 {
324 	int ret = 0;
325 
326 	/* cpu initialize */
327 	GAFR = GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SSP_CLK |
328 		GPIO_MCP_CLK | GPIO_32_768kHz;
329 
330 	GPDR = GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 |
331 		GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD |
332 		GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK |
333 		_COLLIE_GPIO_UCB1x00_RESET | _COLLIE_GPIO_nMIC_ON |
334 		_COLLIE_GPIO_nREMOCON_ON | GPIO_32_768kHz;
335 
336 	PPDR = PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 |
337 		PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS |
338 		PPC_TXD1 | PPC_TXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM;
339 
340 	PWER = _COLLIE_GPIO_AC_IN | _COLLIE_GPIO_CO | _COLLIE_GPIO_ON_KEY |
341 		_COLLIE_GPIO_WAKEUP | _COLLIE_GPIO_nREMOCON_INT | PWER_RTC;
342 
343 	PGSR = _COLLIE_GPIO_nREMOCON_ON;
344 
345 	PSDR = PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4;
346 
347 	PCFR = PCFR_OPDE;
348 
349 	GPSR |= _COLLIE_GPIO_UCB1x00_RESET;
350 
351 	collie_power_resource[0].start = gpio_to_irq(COLLIE_GPIO_AC_IN);
352 	collie_power_resource[0].end = gpio_to_irq(COLLIE_GPIO_AC_IN);
353 
354 	sa11x0_ppc_configure_mcp();
355 
356 
357 	platform_scoop_config = &collie_pcmcia_config;
358 
359 	ret = platform_add_devices(devices, ARRAY_SIZE(devices));
360 	if (ret) {
361 		printk(KERN_WARNING "collie: Unable to register LoCoMo device\n");
362 	}
363 
364 	sa11x0_register_lcd(&collie_lcd_info);
365 	sa11x0_register_mtd(&collie_flash_data, collie_flash_resources,
366 			    ARRAY_SIZE(collie_flash_resources));
367 	sa11x0_register_mcp(&collie_mcp_data);
368 
369 	sharpsl_save_param();
370 }
371 
372 static struct map_desc collie_io_desc[] __initdata = {
373 	{	/* 32M main flash (cs0) */
374 		.virtual	= 0xe8000000,
375 		.pfn		= __phys_to_pfn(0x00000000),
376 		.length		= 0x02000000,
377 		.type		= MT_DEVICE
378 	}, {	/* 32M boot flash (cs1) */
379 		.virtual	= 0xea000000,
380 		.pfn		= __phys_to_pfn(0x08000000),
381 		.length		= 0x02000000,
382 		.type		= MT_DEVICE
383 	}
384 };
385 
386 static void __init collie_map_io(void)
387 {
388 	sa1100_map_io();
389 	iotable_init(collie_io_desc, ARRAY_SIZE(collie_io_desc));
390 
391 #ifdef CONFIG_SHARP_LOCOMO
392 	sa1100_register_uart_fns(&collie_port_fns);
393 #endif
394 	sa1100_register_uart(0, 3);
395 	sa1100_register_uart(1, 1);
396 }
397 
398 MACHINE_START(COLLIE, "Sharp-Collie")
399 	.map_io		= collie_map_io,
400 	.nr_irqs	= SA1100_NR_IRQS,
401 	.init_irq	= sa1100_init_irq,
402 	.timer		= &sa1100_timer,
403 	.init_machine	= collie_init,
404 	.init_late	= sa11x0_init_late,
405 	.restart	= sa11x0_restart,
406 MACHINE_END
407