Merge with /home/shaggy/git/linus-clean/
[linux-2.6] / arch / arm / mach-pxa / lubbock.c
1 /*
2  *  linux/arch/arm/mach-pxa/lubbock.c
3  *
4  *  Support for the Intel DBPXA250 Development Platform.
5  *
6  *  Author:     Nicolas Pitre
7  *  Created:    Jun 15, 2001
8  *  Copyright:  MontaVista Software Inc.
9  *
10  *  This program is free software; you can redistribute it and/or modify
11  *  it under the terms of the GNU General Public License version 2 as
12  *  published by the Free Software Foundation.
13  */
14 #include <linux/module.h>
15 #include <linux/kernel.h>
16 #include <linux/init.h>
17 #include <linux/device.h>
18 #include <linux/sysdev.h>
19 #include <linux/major.h>
20 #include <linux/fb.h>
21 #include <linux/interrupt.h>
22
23 #include <asm/setup.h>
24 #include <asm/memory.h>
25 #include <asm/mach-types.h>
26 #include <asm/hardware.h>
27 #include <asm/irq.h>
28
29 #include <asm/mach/arch.h>
30 #include <asm/mach/map.h>
31 #include <asm/mach/irq.h>
32
33 #include <asm/hardware/sa1111.h>
34
35 #include <asm/arch/pxa-regs.h>
36 #include <asm/arch/lubbock.h>
37 #include <asm/arch/udc.h>
38 #include <asm/arch/pxafb.h>
39 #include <asm/arch/mmc.h>
40
41 #include "generic.h"
42
43
44 #define LUB_MISC_WR             __LUB_REG(LUBBOCK_FPGA_PHYS + 0x080)
45
46 void lubbock_set_misc_wr(unsigned int mask, unsigned int set)
47 {
48         unsigned long flags;
49
50         local_irq_save(flags);
51         LUB_MISC_WR = (LUB_MISC_WR & ~mask) | (set & mask);
52         local_irq_restore(flags);
53 }
54 EXPORT_SYMBOL(lubbock_set_misc_wr);
55
56 static unsigned long lubbock_irq_enabled;
57
58 static void lubbock_mask_irq(unsigned int irq)
59 {
60         int lubbock_irq = (irq - LUBBOCK_IRQ(0));
61         LUB_IRQ_MASK_EN = (lubbock_irq_enabled &= ~(1 << lubbock_irq));
62 }
63
64 static void lubbock_unmask_irq(unsigned int irq)
65 {
66         int lubbock_irq = (irq - LUBBOCK_IRQ(0));
67         /* the irq can be acknowledged only if deasserted, so it's done here */
68         LUB_IRQ_SET_CLR &= ~(1 << lubbock_irq);
69         LUB_IRQ_MASK_EN = (lubbock_irq_enabled |= (1 << lubbock_irq));
70 }
71
72 static struct irqchip lubbock_irq_chip = {
73         .ack            = lubbock_mask_irq,
74         .mask           = lubbock_mask_irq,
75         .unmask         = lubbock_unmask_irq,
76 };
77
78 static void lubbock_irq_handler(unsigned int irq, struct irqdesc *desc,
79                                 struct pt_regs *regs)
80 {
81         unsigned long pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
82         do {
83                 GEDR(0) = GPIO_bit(0);  /* clear our parent irq */
84                 if (likely(pending)) {
85                         irq = LUBBOCK_IRQ(0) + __ffs(pending);
86                         desc = irq_desc + irq;
87                         desc->handle(irq, desc, regs);
88                 }
89                 pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
90         } while (pending);
91 }
92
93 static void __init lubbock_init_irq(void)
94 {
95         int irq;
96
97         pxa_init_irq();
98
99         /* setup extra lubbock irqs */
100         for (irq = LUBBOCK_IRQ(0); irq <= LUBBOCK_LAST_IRQ; irq++) {
101                 set_irq_chip(irq, &lubbock_irq_chip);
102                 set_irq_handler(irq, do_level_IRQ);
103                 set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
104         }
105
106         set_irq_chained_handler(IRQ_GPIO(0), lubbock_irq_handler);
107         set_irq_type(IRQ_GPIO(0), IRQT_FALLING);
108 }
109
110 #ifdef CONFIG_PM
111
112 static int lubbock_irq_resume(struct sys_device *dev)
113 {
114         LUB_IRQ_MASK_EN = lubbock_irq_enabled;
115         return 0;
116 }
117
118 static struct sysdev_class lubbock_irq_sysclass = {
119         set_kset_name("cpld_irq"),
120         .resume = lubbock_irq_resume,
121 };
122
123 static struct sys_device lubbock_irq_device = {
124         .cls = &lubbock_irq_sysclass,
125 };
126
127 static int __init lubbock_irq_device_init(void)
128 {
129         int ret = sysdev_class_register(&lubbock_irq_sysclass);
130         if (ret == 0)
131                 ret = sysdev_register(&lubbock_irq_device);
132         return ret;
133 }
134
135 device_initcall(lubbock_irq_device_init);
136
137 #endif
138
139 static int lubbock_udc_is_connected(void)
140 {
141         return (LUB_MISC_RD & (1 << 9)) == 0;
142 }
143
144 static struct pxa2xx_udc_mach_info udc_info __initdata = {
145         .udc_is_connected       = lubbock_udc_is_connected,
146         // no D+ pullup; lubbock can't connect/disconnect in software
147 };
148
149 static struct resource sa1111_resources[] = {
150         [0] = {
151                 .start  = 0x10000000,
152                 .end    = 0x10001fff,
153                 .flags  = IORESOURCE_MEM,
154         },
155         [1] = {
156                 .start  = LUBBOCK_SA1111_IRQ,
157                 .end    = LUBBOCK_SA1111_IRQ,
158                 .flags  = IORESOURCE_IRQ,
159         },
160 };
161
162 static struct platform_device sa1111_device = {
163         .name           = "sa1111",
164         .id             = -1,
165         .num_resources  = ARRAY_SIZE(sa1111_resources),
166         .resource       = sa1111_resources,
167 };
168
169 static struct resource smc91x_resources[] = {
170         [0] = {
171                 .name   = "smc91x-regs",
172                 .start  = 0x0c000000,
173                 .end    = 0x0c0fffff,
174                 .flags  = IORESOURCE_MEM,
175         },
176         [1] = {
177                 .start  = LUBBOCK_ETH_IRQ,
178                 .end    = LUBBOCK_ETH_IRQ,
179                 .flags  = IORESOURCE_IRQ,
180         },
181         [2] = {
182                 .name   = "smc91x-attrib",
183                 .start  = 0x0e000000,
184                 .end    = 0x0e0fffff,
185                 .flags  = IORESOURCE_MEM,
186         },
187 };
188
189 static struct platform_device smc91x_device = {
190         .name           = "smc91x",
191         .id             = -1,
192         .num_resources  = ARRAY_SIZE(smc91x_resources),
193         .resource       = smc91x_resources,
194 };
195
196 static struct platform_device *devices[] __initdata = {
197         &sa1111_device,
198         &smc91x_device,
199 };
200
201 static struct pxafb_mach_info sharp_lm8v31 __initdata = {
202         .pixclock       = 270000,
203         .xres           = 640,
204         .yres           = 480,
205         .bpp            = 16,
206         .hsync_len      = 1,
207         .left_margin    = 3,
208         .right_margin   = 3,
209         .vsync_len      = 1,
210         .upper_margin   = 0,
211         .lower_margin   = 0,
212         .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
213         .cmap_greyscale = 0,
214         .cmap_inverse   = 0,
215         .cmap_static    = 0,
216         .lccr0          = LCCR0_SDS,
217         .lccr3          = LCCR3_PCP | LCCR3_Acb(255),
218 };
219
220 static int lubbock_mci_init(struct device *dev, irqreturn_t (*lubbock_detect_int)(int, void *, struct pt_regs *), void *data)
221 {
222         /* setup GPIO for PXA25x MMC controller */
223         pxa_gpio_mode(GPIO6_MMCCLK_MD);
224         pxa_gpio_mode(GPIO8_MMCCS0_MD);
225
226         return 0;
227 }
228
229 static struct pxamci_platform_data lubbock_mci_platform_data = {
230         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
231         .init           = lubbock_mci_init,
232 };
233
234 static void __init lubbock_init(void)
235 {
236         pxa_set_udc_info(&udc_info);
237         set_pxa_fb_info(&sharp_lm8v31);
238         pxa_set_mci_info(&lubbock_mci_platform_data);
239         (void) platform_add_devices(devices, ARRAY_SIZE(devices));
240 }
241
242 static struct map_desc lubbock_io_desc[] __initdata = {
243   { LUBBOCK_FPGA_VIRT, LUBBOCK_FPGA_PHYS, 0x00100000, MT_DEVICE }, /* CPLD */
244 };
245
246 static void __init lubbock_map_io(void)
247 {
248         pxa_map_io();
249         iotable_init(lubbock_io_desc, ARRAY_SIZE(lubbock_io_desc));
250
251         /* This enables the BTUART */
252         pxa_gpio_mode(GPIO42_BTRXD_MD);
253         pxa_gpio_mode(GPIO43_BTTXD_MD);
254         pxa_gpio_mode(GPIO44_BTCTS_MD);
255         pxa_gpio_mode(GPIO45_BTRTS_MD);
256
257         /* This is for the SMC chip select */
258         pxa_gpio_mode(GPIO79_nCS_3_MD);
259
260         /* setup sleep mode values */
261         PWER  = 0x00000002;
262         PFER  = 0x00000000;
263         PRER  = 0x00000002;
264         PGSR0 = 0x00008000;
265         PGSR1 = 0x003F0202;
266         PGSR2 = 0x0001C000;
267         PCFR |= PCFR_OPDE;
268 }
269
270 MACHINE_START(LUBBOCK, "Intel DBPXA250 Development Platform (aka Lubbock)")
271         MAINTAINER("MontaVista Software Inc.")
272         BOOT_MEM(0xa0000000, 0x40000000, io_p2v(0x40000000))
273         MAPIO(lubbock_map_io)
274         INITIRQ(lubbock_init_irq)
275         .timer          = &pxa_timer,
276         INIT_MACHINE(lubbock_init)
277 MACHINE_END