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