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1da177e4 LT |
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> | |
22f11c4e | 18 | #include <linux/sysdev.h> |
1da177e4 LT |
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; | |
664399e1 | 87 | desc_handle_irq(irq, desc, regs); |
1da177e4 LT |
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 | ||
22f11c4e NP |
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 | ||
1da177e4 LT |
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)") | |
e9dea0c6 RK |
271 | /* Maintainer: MontaVista Software Inc. */ |
272 | .phys_ram = 0xa0000000, | |
273 | .phys_io = 0x40000000, | |
68070bde | 274 | .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, |
e9dea0c6 RK |
275 | .map_io = lubbock_map_io, |
276 | .init_irq = lubbock_init_irq, | |
1da177e4 | 277 | .timer = &pxa_timer, |
e9dea0c6 | 278 | .init_machine = lubbock_init, |
1da177e4 | 279 | MACHINE_END |