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Merge master.kernel.org:/home/rmk/linux-2.6-mmc
[deliverable/linux.git] / arch / arm / mach-pxa / lubbock.c
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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
46void 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}
54EXPORT_SYMBOL(lubbock_set_misc_wr);
55
56static unsigned long lubbock_irq_enabled;
57
58static 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
64static 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
72static struct irqchip lubbock_irq_chip = {
73 .ack = lubbock_mask_irq,
74 .mask = lubbock_mask_irq,
75 .unmask = lubbock_unmask_irq,
76};
77
78static 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
93static 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
112static int lubbock_irq_resume(struct sys_device *dev)
113{
114 LUB_IRQ_MASK_EN = lubbock_irq_enabled;
115 return 0;
116}
117
118static struct sysdev_class lubbock_irq_sysclass = {
119 set_kset_name("cpld_irq"),
120 .resume = lubbock_irq_resume,
121};
122
123static struct sys_device lubbock_irq_device = {
124 .cls = &lubbock_irq_sysclass,
125};
126
127static 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
135device_initcall(lubbock_irq_device_init);
136
137#endif
138
1da177e4
LT		 139static int lubbock_udc_is_connected(void)
140{
141 return (LUB_MISC_RD & (1 << 9)) == 0;
142}
143
144static 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
149static 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
162static struct platform_device sa1111_device = {
163 .name = "sa1111",
164 .id = -1,
165 .num_resources = ARRAY_SIZE(sa1111_resources),
166 .resource = sa1111_resources,
167};
168
169static 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
189static struct platform_device smc91x_device = {
190 .name = "smc91x",
191 .id = -1,
192 .num_resources = ARRAY_SIZE(smc91x_resources),
193 .resource = smc91x_resources,
194};
195
196static struct platform_device *devices[] __initdata = {
197 &sa1111_device,
198 &smc91x_device,
199};
200
201static 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
220static 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
229static 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
234static 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
242static struct map_desc lubbock_io_desc[] __initdata = {
243 { LUBBOCK_FPGA_VIRT, LUBBOCK_FPGA_PHYS, 0x00100000, MT_DEVICE }, /* CPLD */
244};
245
246static 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
270MACHINE_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)
277MACHINE_END
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