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