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1 /*
2  * linux/arch/arm/mach-pxa/capc7117.c
3  *
4  * Support for the Embedian CAPC-7117 Evaluation Kit
5  * based on the Embedian MXM-8x10 Computer on Module
6  *
7  * Copyright (C) 2009 Embedian Inc.
8  * Copyright (C) 2009 TMT Services & Supplies (Pty) Ltd.
9  *
10  * 2007-09-04: eric miao <eric.y.miao@gmail.com>
11  *             rewrite to align with latest kernel
12  *
13  * 2010-01-09: Edwin Peer <epeer@tmtservices.co.za>
14  *             Hennie van der Merwe <hvdmerwe@tmtservices.co.za>
15  *             rework for upstream merge
16  *
17  * This program is free software; you can redistribute it and/or modify
18  * it under the terms of the GNU General Public License version 2 as
19  * published by the Free Software Foundation.
20  */
21 
22 #include <linux/irq.h>
23 #include <linux/platform_device.h>
24 #include <linux/ata_platform.h>
25 #include <linux/serial_8250.h>
26 #include <linux/gpio.h>
27 
28 #include <asm/mach-types.h>
29 #include <asm/mach/arch.h>
30 
31 #include <mach/pxa320.h>
32 #include <mach/mxm8x10.h>
33 
34 #include "generic.h"
35 
36 /* IDE (PATA) Support */
37 static struct pata_platform_info pata_platform_data = {
38 	.ioport_shift = 1
39 };
40 
41 static struct resource capc7117_ide_resources[] = {
42 	[0] = {
43 	       .start = 0x11000020,
44 	       .end = 0x1100003f,
45 	       .flags = IORESOURCE_MEM
46 	},
47 	[1] = {
48 	       .start = 0x1100001c,
49 	       .end = 0x1100001c,
50 	       .flags = IORESOURCE_MEM
51 	},
52 	[2] = {
53 	       .start = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO76)),
54 	       .end = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO76)),
55 	       .flags = IORESOURCE_IRQ | IRQF_TRIGGER_RISING
56 	}
57 };
58 
59 static struct platform_device capc7117_ide_device = {
60 	.name = "pata_platform",
61 	.num_resources = ARRAY_SIZE(capc7117_ide_resources),
62 	.resource = capc7117_ide_resources,
63 	.dev = {
64 		.platform_data = &pata_platform_data,
65 		.coherent_dma_mask = ~0		/* grumble */
66 	}
67 };
68 
capc7117_ide_init(void)69 static void __init capc7117_ide_init(void)
70 {
71 	platform_device_register(&capc7117_ide_device);
72 }
73 
74 /* TI16C752 UART support */
75 #define	TI16C752_FLAGS		(UPF_BOOT_AUTOCONF | \
76 					UPF_IOREMAP | \
77 					UPF_BUGGY_UART | \
78 					UPF_SKIP_TEST)
79 #define	TI16C752_UARTCLK	(22118400)
80 static struct plat_serial8250_port ti16c752_platform_data[] = {
81 	[0] = {
82 	       .mapbase = 0x14000000,
83 	       .irq = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO78)),
84 	       .irqflags = IRQF_TRIGGER_RISING,
85 	       .flags = TI16C752_FLAGS,
86 	       .iotype = UPIO_MEM,
87 	       .regshift = 1,
88 	       .uartclk = TI16C752_UARTCLK
89 	},
90 	[1] = {
91 	       .mapbase = 0x14000040,
92 	       .irq = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO79)),
93 	       .irqflags = IRQF_TRIGGER_RISING,
94 	       .flags = TI16C752_FLAGS,
95 	       .iotype = UPIO_MEM,
96 	       .regshift = 1,
97 	       .uartclk = TI16C752_UARTCLK
98 	},
99 	[2] = {
100 	       .mapbase = 0x14000080,
101 	       .irq = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO80)),
102 	       .irqflags = IRQF_TRIGGER_RISING,
103 	       .flags = TI16C752_FLAGS,
104 	       .iotype = UPIO_MEM,
105 	       .regshift = 1,
106 	       .uartclk = TI16C752_UARTCLK
107 	},
108 	[3] = {
109 	       .mapbase = 0x140000c0,
110 	       .irq = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO81)),
111 	       .irqflags = IRQF_TRIGGER_RISING,
112 	       .flags = TI16C752_FLAGS,
113 	       .iotype = UPIO_MEM,
114 	       .regshift = 1,
115 	       .uartclk = TI16C752_UARTCLK
116 	},
117 	[4] = {
118 	       /* end of array */
119 	}
120 };
121 
122 static struct platform_device ti16c752_device = {
123 	.name = "serial8250",
124 	.id = PLAT8250_DEV_PLATFORM,
125 	.dev = {
126 		.platform_data = ti16c752_platform_data
127 	}
128 };
129 
capc7117_uarts_init(void)130 static void __init capc7117_uarts_init(void)
131 {
132 	platform_device_register(&ti16c752_device);
133 }
134 
capc7117_init(void)135 static void __init capc7117_init(void)
136 {
137 	/* Init CoM */
138 	mxm_8x10_barebones_init();
139 
140 	/* Init evaluation board peripherals */
141 	mxm_8x10_ac97_init();
142 	mxm_8x10_usb_host_init();
143 	mxm_8x10_mmc_init();
144 
145 	capc7117_uarts_init();
146 	capc7117_ide_init();
147 }
148 
149 MACHINE_START(CAPC7117,
150 	      "Embedian CAPC-7117 evaluation kit based on the MXM-8x10 CoM")
151 	.atag_offset = 0x100,
152 	.map_io = pxa3xx_map_io,
153 	.nr_irqs = PXA_NR_IRQS,
154 	.init_irq = pxa3xx_init_irq,
155 	.handle_irq = pxa3xx_handle_irq,
156 	.timer = &pxa_timer,
157 	.init_machine = capc7117_init,
158 	.restart	= pxa_restart,
159 MACHINE_END
160