2 * linux/arch/arm/mach-pxa/lubbock.c
4 * Support for the Intel DBPXA250 Development Platform.
6 * Author: Nicolas Pitre
7 * Created: Jun 15, 2001
8 * Copyright: MontaVista Software Inc.
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.
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>
21 #include <linux/interrupt.h>
23 #include <asm/setup.h>
24 #include <asm/memory.h>
25 #include <asm/mach-types.h>
26 #include <asm/hardware.h>
29 #include <asm/mach/arch.h>
30 #include <asm/mach/map.h>
31 #include <asm/mach/irq.h>
33 #include <asm/hardware/sa1111.h>
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>
44 #define LUB_MISC_WR __LUB_REG(LUBBOCK_FPGA_PHYS + 0x080)
46 void lubbock_set_misc_wr(unsigned int mask
, unsigned int set
)
50 local_irq_save(flags
);
51 LUB_MISC_WR
= (LUB_MISC_WR
& ~mask
) | (set
& mask
);
52 local_irq_restore(flags
);
54 EXPORT_SYMBOL(lubbock_set_misc_wr
);
56 static unsigned long lubbock_irq_enabled
;
58 static void lubbock_mask_irq(unsigned int irq
)
60 int lubbock_irq
= (irq
- LUBBOCK_IRQ(0));
61 LUB_IRQ_MASK_EN
= (lubbock_irq_enabled
&= ~(1 << lubbock_irq
));
64 static void lubbock_unmask_irq(unsigned int irq
)
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
));
72 static struct irqchip lubbock_irq_chip
= {
73 .ack
= lubbock_mask_irq
,
74 .mask
= lubbock_mask_irq
,
75 .unmask
= lubbock_unmask_irq
,
78 static void lubbock_irq_handler(unsigned int irq
, struct irqdesc
*desc
,
81 unsigned long pending
= LUB_IRQ_SET_CLR
& lubbock_irq_enabled
;
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(irq
, desc
, regs
);
89 pending
= LUB_IRQ_SET_CLR
& lubbock_irq_enabled
;
93 static void __init
lubbock_init_irq(void)
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
);
106 set_irq_chained_handler(IRQ_GPIO(0), lubbock_irq_handler
);
107 set_irq_type(IRQ_GPIO(0), IRQT_FALLING
);
112 static int lubbock_irq_resume(struct sys_device
*dev
)
114 LUB_IRQ_MASK_EN
= lubbock_irq_enabled
;
118 static struct sysdev_class lubbock_irq_sysclass
= {
119 set_kset_name("cpld_irq"),
120 .resume
= lubbock_irq_resume
,
123 static struct sys_device lubbock_irq_device
= {
124 .cls
= &lubbock_irq_sysclass
,
127 static int __init
lubbock_irq_device_init(void)
129 int ret
= sysdev_class_register(&lubbock_irq_sysclass
);
131 ret
= sysdev_register(&lubbock_irq_device
);
135 device_initcall(lubbock_irq_device_init
);
139 static int lubbock_udc_is_connected(void)
141 return (LUB_MISC_RD
& (1 << 9)) == 0;
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
149 static struct platform_device lub_audio_device
= {
150 .name
= "pxa2xx-ac97",
154 static struct resource sa1111_resources
[] = {
158 .flags
= IORESOURCE_MEM
,
161 .start
= LUBBOCK_SA1111_IRQ
,
162 .end
= LUBBOCK_SA1111_IRQ
,
163 .flags
= IORESOURCE_IRQ
,
167 static struct platform_device sa1111_device
= {
170 .num_resources
= ARRAY_SIZE(sa1111_resources
),
171 .resource
= sa1111_resources
,
174 static struct resource smc91x_resources
[] = {
176 .name
= "smc91x-regs",
179 .flags
= IORESOURCE_MEM
,
182 .start
= LUBBOCK_ETH_IRQ
,
183 .end
= LUBBOCK_ETH_IRQ
,
184 .flags
= IORESOURCE_IRQ
,
187 .name
= "smc91x-attrib",
190 .flags
= IORESOURCE_MEM
,
194 static struct platform_device smc91x_device
= {
197 .num_resources
= ARRAY_SIZE(smc91x_resources
),
198 .resource
= smc91x_resources
,
201 static struct platform_device
*devices
[] __initdata
= {
207 static struct pxafb_mach_info sharp_lm8v31 __initdata
= {
218 .sync
= FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
223 .lccr3
= LCCR3_PCP
| LCCR3_Acb(255),
226 static int lubbock_mci_init(struct device
*dev
, irqreturn_t (*lubbock_detect_int
)(int, void *, struct pt_regs
*), void *data
)
228 /* setup GPIO for PXA25x MMC controller */
229 pxa_gpio_mode(GPIO6_MMCCLK_MD
);
230 pxa_gpio_mode(GPIO8_MMCCS0_MD
);
235 static struct pxamci_platform_data lubbock_mci_platform_data
= {
236 .ocr_mask
= MMC_VDD_32_33
|MMC_VDD_33_34
,
237 .init
= lubbock_mci_init
,
240 static void __init
lubbock_init(void)
242 pxa_set_udc_info(&udc_info
);
243 set_pxa_fb_info(&sharp_lm8v31
);
244 pxa_set_mci_info(&lubbock_mci_platform_data
);
245 (void) platform_add_devices(devices
, ARRAY_SIZE(devices
));
248 static struct map_desc lubbock_io_desc
[] __initdata
= {
249 { LUBBOCK_FPGA_VIRT
, LUBBOCK_FPGA_PHYS
, 0x00100000, MT_DEVICE
}, /* CPLD */
252 static void __init
lubbock_map_io(void)
255 iotable_init(lubbock_io_desc
, ARRAY_SIZE(lubbock_io_desc
));
257 /* This enables the BTUART */
258 pxa_gpio_mode(GPIO42_BTRXD_MD
);
259 pxa_gpio_mode(GPIO43_BTTXD_MD
);
260 pxa_gpio_mode(GPIO44_BTCTS_MD
);
261 pxa_gpio_mode(GPIO45_BTRTS_MD
);
263 /* This is for the SMC chip select */
264 pxa_gpio_mode(GPIO79_nCS_3_MD
);
266 /* setup sleep mode values */
276 MACHINE_START(LUBBOCK
, "Intel DBPXA250 Development Platform (aka Lubbock)")
277 /* Maintainer: MontaVista Software Inc. */
278 .phys_ram
= 0xa0000000,
279 .phys_io
= 0x40000000,
280 .io_pg_offst
= (io_p2v(0x40000000) >> 18) & 0xfffc,
281 .map_io
= lubbock_map_io
,
282 .init_irq
= lubbock_init_irq
,
284 .init_machine
= lubbock_init
,