[ARM] 2987/1: Replace map_desc.physical with map_desc.pfn: OMAP
[linux-3.10.git] / arch / arm / mach-pxa / mainstone.c
1 /*
2  *  linux/arch/arm/mach-pxa/mainstone.c
3  *
4  *  Support for the Intel HCDDBBVA0 Development Platform.
5  *  (go figure how they came up with such name...)
6  *
7  *  Author:     Nicolas Pitre
8  *  Created:    Nov 05, 2002
9  *  Copyright:  MontaVista Software Inc.
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/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
24 #include <asm/types.h>
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
31 #include <asm/mach/arch.h>
32 #include <asm/mach/map.h>
33 #include <asm/mach/irq.h>
34
35 #include <asm/arch/pxa-regs.h>
36 #include <asm/arch/mainstone.h>
37 #include <asm/arch/audio.h>
38 #include <asm/arch/pxafb.h>
39 #include <asm/arch/mmc.h>
40
41 #include "generic.h"
42
43
44 static unsigned long mainstone_irq_enabled;
45
46 static void mainstone_mask_irq(unsigned int irq)
47 {
48         int mainstone_irq = (irq - MAINSTONE_IRQ(0));
49         MST_INTMSKENA = (mainstone_irq_enabled &= ~(1 << mainstone_irq));
50 }
51
52 static void mainstone_unmask_irq(unsigned int irq)
53 {
54         int mainstone_irq = (irq - MAINSTONE_IRQ(0));
55         /* the irq can be acknowledged only if deasserted, so it's done here */
56         MST_INTSETCLR &= ~(1 << mainstone_irq);
57         MST_INTMSKENA = (mainstone_irq_enabled |= (1 << mainstone_irq));
58 }
59
60 static struct irqchip mainstone_irq_chip = {
61         .ack            = mainstone_mask_irq,
62         .mask           = mainstone_mask_irq,
63         .unmask         = mainstone_unmask_irq,
64 };
65
66 static void mainstone_irq_handler(unsigned int irq, struct irqdesc *desc,
67                                   struct pt_regs *regs)
68 {
69         unsigned long pending = MST_INTSETCLR & mainstone_irq_enabled;
70         do {
71                 GEDR(0) = GPIO_bit(0);  /* clear useless edge notification */
72                 if (likely(pending)) {
73                         irq = MAINSTONE_IRQ(0) + __ffs(pending);
74                         desc = irq_desc + irq;
75                         desc_handle_irq(irq, desc, regs);
76                 }
77                 pending = MST_INTSETCLR & mainstone_irq_enabled;
78         } while (pending);
79 }
80
81 static void __init mainstone_init_irq(void)
82 {
83         int irq;
84
85         pxa_init_irq();
86
87         /* setup extra Mainstone irqs */
88         for(irq = MAINSTONE_IRQ(0); irq <= MAINSTONE_IRQ(15); irq++) {
89                 set_irq_chip(irq, &mainstone_irq_chip);
90                 set_irq_handler(irq, do_level_IRQ);
91                 set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
92         }
93         set_irq_flags(MAINSTONE_IRQ(8), 0);
94         set_irq_flags(MAINSTONE_IRQ(12), 0);
95
96         MST_INTMSKENA = 0;
97         MST_INTSETCLR = 0;
98
99         set_irq_chained_handler(IRQ_GPIO(0), mainstone_irq_handler);
100         set_irq_type(IRQ_GPIO(0), IRQT_FALLING);
101 }
102
103 #ifdef CONFIG_PM
104
105 static int mainstone_irq_resume(struct sys_device *dev)
106 {
107         MST_INTMSKENA = mainstone_irq_enabled;
108         return 0;
109 }
110
111 static struct sysdev_class mainstone_irq_sysclass = {
112         set_kset_name("cpld_irq"),
113         .resume = mainstone_irq_resume,
114 };
115
116 static struct sys_device mainstone_irq_device = {
117         .cls = &mainstone_irq_sysclass,
118 };
119
120 static int __init mainstone_irq_device_init(void)
121 {
122         int ret = sysdev_class_register(&mainstone_irq_sysclass);
123         if (ret == 0)
124                 ret = sysdev_register(&mainstone_irq_device);
125         return ret;
126 }
127
128 device_initcall(mainstone_irq_device_init);
129
130 #endif
131
132
133 static struct resource smc91x_resources[] = {
134         [0] = {
135                 .start  = (MST_ETH_PHYS + 0x300),
136                 .end    = (MST_ETH_PHYS + 0xfffff),
137                 .flags  = IORESOURCE_MEM,
138         },
139         [1] = {
140                 .start  = MAINSTONE_IRQ(3),
141                 .end    = MAINSTONE_IRQ(3),
142                 .flags  = IORESOURCE_IRQ,
143         }
144 };
145
146 static struct platform_device smc91x_device = {
147         .name           = "smc91x",
148         .id             = 0,
149         .num_resources  = ARRAY_SIZE(smc91x_resources),
150         .resource       = smc91x_resources,
151 };
152
153 static int mst_audio_startup(snd_pcm_substream_t *substream, void *priv)
154 {
155         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
156                 MST_MSCWR2 &= ~MST_MSCWR2_AC97_SPKROFF;
157         return 0;
158 }
159
160 static void mst_audio_shutdown(snd_pcm_substream_t *substream, void *priv)
161 {
162         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
163                 MST_MSCWR2 |= MST_MSCWR2_AC97_SPKROFF;
164 }
165
166 static long mst_audio_suspend_mask;
167
168 static void mst_audio_suspend(void *priv)
169 {
170         mst_audio_suspend_mask = MST_MSCWR2;
171         MST_MSCWR2 |= MST_MSCWR2_AC97_SPKROFF;
172 }
173
174 static void mst_audio_resume(void *priv)
175 {
176         MST_MSCWR2 &= mst_audio_suspend_mask | ~MST_MSCWR2_AC97_SPKROFF;
177 }
178
179 static pxa2xx_audio_ops_t mst_audio_ops = {
180         .startup        = mst_audio_startup,
181         .shutdown       = mst_audio_shutdown,
182         .suspend        = mst_audio_suspend,
183         .resume         = mst_audio_resume,
184 };
185
186 static struct platform_device mst_audio_device = {
187         .name           = "pxa2xx-ac97",
188         .id             = -1,
189         .dev            = { .platform_data = &mst_audio_ops },
190 };
191
192 static void mainstone_backlight_power(int on)
193 {
194         if (on) {
195                 pxa_gpio_mode(GPIO16_PWM0_MD);
196                 pxa_set_cken(CKEN0_PWM0, 1);
197                 PWM_CTRL0 = 0;
198                 PWM_PWDUTY0 = 0x3ff;
199                 PWM_PERVAL0 = 0x3ff;
200         } else {
201                 PWM_CTRL0 = 0;
202                 PWM_PWDUTY0 = 0x0;
203                 PWM_PERVAL0 = 0x3FF;
204                 pxa_set_cken(CKEN0_PWM0, 0);
205         }
206 }
207
208 static struct pxafb_mach_info toshiba_ltm04c380k __initdata = {
209         .pixclock               = 50000,
210         .xres                   = 640,
211         .yres                   = 480,
212         .bpp                    = 16,
213         .hsync_len              = 1,
214         .left_margin            = 0x9f,
215         .right_margin           = 1,
216         .vsync_len              = 44,
217         .upper_margin           = 0,
218         .lower_margin           = 0,
219         .sync                   = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
220         .lccr0                  = LCCR0_Act,
221         .lccr3                  = LCCR3_PCP,
222         .pxafb_backlight_power  = mainstone_backlight_power,
223 };
224
225 static struct pxafb_mach_info toshiba_ltm035a776c __initdata = {
226         .pixclock               = 110000,
227         .xres                   = 240,
228         .yres                   = 320,
229         .bpp                    = 16,
230         .hsync_len              = 4,
231         .left_margin            = 8,
232         .right_margin           = 20,
233         .vsync_len              = 3,
234         .upper_margin           = 1,
235         .lower_margin           = 10,
236         .sync                   = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
237         .lccr0                  = LCCR0_Act,
238         .lccr3                  = LCCR3_PCP,
239         .pxafb_backlight_power  = mainstone_backlight_power,
240 };
241
242 static int mainstone_mci_init(struct device *dev, irqreturn_t (*mstone_detect_int)(int, void *, struct pt_regs *), void *data)
243 {
244         int err;
245
246         /*
247          * setup GPIO for PXA27x MMC controller
248          */
249         pxa_gpio_mode(GPIO32_MMCCLK_MD);
250         pxa_gpio_mode(GPIO112_MMCCMD_MD);
251         pxa_gpio_mode(GPIO92_MMCDAT0_MD);
252         pxa_gpio_mode(GPIO109_MMCDAT1_MD);
253         pxa_gpio_mode(GPIO110_MMCDAT2_MD);
254         pxa_gpio_mode(GPIO111_MMCDAT3_MD);
255
256         /* make sure SD/Memory Stick multiplexer's signals
257          * are routed to MMC controller
258          */
259         MST_MSCWR1 &= ~MST_MSCWR1_MS_SEL;
260
261         err = request_irq(MAINSTONE_MMC_IRQ, mstone_detect_int, SA_INTERRUPT,
262                              "MMC card detect", data);
263         if (err) {
264                 printk(KERN_ERR "mainstone_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
265                 return -1;
266         }
267
268         return 0;
269 }
270
271 static void mainstone_mci_setpower(struct device *dev, unsigned int vdd)
272 {
273         struct pxamci_platform_data* p_d = dev->platform_data;
274
275         if (( 1 << vdd) & p_d->ocr_mask) {
276                 printk(KERN_DEBUG "%s: on\n", __FUNCTION__);
277                 MST_MSCWR1 |= MST_MSCWR1_MMC_ON;
278                 MST_MSCWR1 &= ~MST_MSCWR1_MS_SEL;
279         } else {
280                 printk(KERN_DEBUG "%s: off\n", __FUNCTION__);
281                 MST_MSCWR1 &= ~MST_MSCWR1_MMC_ON;
282         }
283 }
284
285 static void mainstone_mci_exit(struct device *dev, void *data)
286 {
287         free_irq(MAINSTONE_MMC_IRQ, data);
288 }
289
290 static struct pxamci_platform_data mainstone_mci_platform_data = {
291         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
292         .init           = mainstone_mci_init,
293         .setpower       = mainstone_mci_setpower,
294         .exit           = mainstone_mci_exit,
295 };
296
297 static void __init mainstone_init(void)
298 {
299         /*
300          * On Mainstone, we route AC97_SYSCLK via GPIO45 to
301          * the audio daughter card
302          */
303         pxa_gpio_mode(GPIO45_SYSCLK_AC97_MD);
304
305         platform_device_register(&smc91x_device);
306         platform_device_register(&mst_audio_device);
307
308         /* reading Mainstone's "Virtual Configuration Register"
309            might be handy to select LCD type here */
310         if (0)
311                 set_pxa_fb_info(&toshiba_ltm04c380k);
312         else
313                 set_pxa_fb_info(&toshiba_ltm035a776c);
314
315         pxa_set_mci_info(&mainstone_mci_platform_data);
316 }
317
318
319 static struct map_desc mainstone_io_desc[] __initdata = {
320   { MST_FPGA_VIRT, MST_FPGA_PHYS, 0x00100000, MT_DEVICE }, /* CPLD */
321 };
322
323 static void __init mainstone_map_io(void)
324 {
325         pxa_map_io();
326         iotable_init(mainstone_io_desc, ARRAY_SIZE(mainstone_io_desc));
327
328         /* initialize sleep mode regs (wake-up sources, etc) */
329         PGSR0 = 0x00008800;
330         PGSR1 = 0x00000002;
331         PGSR2 = 0x0001FC00;
332         PGSR3 = 0x00001F81;
333         PWER  = 0xC0000002;
334         PRER  = 0x00000002;
335         PFER  = 0x00000002;
336         /*      for use I SRAM as framebuffer.  */
337         PSLR |= 0xF04;
338         PCFR = 0x66;
339         /*      For Keypad wakeup.      */
340         KPC &=~KPC_ASACT;
341         KPC |=KPC_AS;
342         PKWR  = 0x000FD000;
343         /*      Need read PKWR back after set it.       */
344         PKWR;
345 }
346
347 MACHINE_START(MAINSTONE, "Intel HCDDBBVA0 Development Platform (aka Mainstone)")
348         /* Maintainer: MontaVista Software Inc. */
349         .phys_ram       = 0xa0000000,
350         .phys_io        = 0x40000000,
351         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
352         .map_io         = mainstone_map_io,
353         .init_irq       = mainstone_init_irq,
354         .timer          = &pxa_timer,
355         .init_machine   = mainstone_init,
356 MACHINE_END