arch: syscalls: simplify uapi/kapi directory creation
[linux-2.6-microblaze.git] / arch / arm / mach-pxa / icontrol.c
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * linux/arch/arm/mach-pxa/icontrol.c
4  *
5  * Support for the iControl and SafeTcam platforms from TMT Services
6  * using the Embedian MXM-8x10 Computer on Module
7  *
8  * Copyright (C) 2009 TMT Services & Supplies (Pty) Ltd.
9  *
10  * 2010-01-21 Hennie van der Merve <hvdmerwe@tmtservies.co.za>
11  */
12
13 #include <linux/irq.h>
14 #include <linux/platform_device.h>
15 #include <linux/property.h>
16 #include <linux/gpio.h>
17
18 #include <asm/mach-types.h>
19 #include <asm/mach/arch.h>
20
21 #include "pxa320.h"
22 #include "mxm8x10.h"
23
24 #include <linux/spi/spi.h>
25 #include <linux/spi/pxa2xx_spi.h>
26 #include <linux/regulator/machine.h>
27
28 #include "generic.h"
29
30 #define ICONTROL_MCP251x_nCS1   (15)
31 #define ICONTROL_MCP251x_nCS2   (16)
32 #define ICONTROL_MCP251x_nCS3   (17)
33 #define ICONTROL_MCP251x_nCS4   (24)
34
35 #define ICONTROL_MCP251x_nIRQ1  (74)
36 #define ICONTROL_MCP251x_nIRQ2  (75)
37 #define ICONTROL_MCP251x_nIRQ3  (76)
38 #define ICONTROL_MCP251x_nIRQ4  (77)
39
40 static struct pxa2xx_spi_chip mcp251x_chip_info1 = {
41         .tx_threshold   = 8,
42         .rx_threshold   = 128,
43         .dma_burst_size = 8,
44         .timeout        = 235,
45         .gpio_cs        = ICONTROL_MCP251x_nCS1
46 };
47
48 static struct pxa2xx_spi_chip mcp251x_chip_info2 = {
49         .tx_threshold   = 8,
50         .rx_threshold   = 128,
51         .dma_burst_size = 8,
52         .timeout        = 235,
53         .gpio_cs        = ICONTROL_MCP251x_nCS2
54 };
55
56 static struct pxa2xx_spi_chip mcp251x_chip_info3 = {
57         .tx_threshold   = 8,
58         .rx_threshold   = 128,
59         .dma_burst_size = 8,
60         .timeout        = 235,
61         .gpio_cs        = ICONTROL_MCP251x_nCS3
62 };
63
64 static struct pxa2xx_spi_chip mcp251x_chip_info4 = {
65         .tx_threshold   = 8,
66         .rx_threshold   = 128,
67         .dma_burst_size = 8,
68         .timeout        = 235,
69         .gpio_cs        = ICONTROL_MCP251x_nCS4
70 };
71
72 static const struct property_entry mcp251x_properties[] = {
73         PROPERTY_ENTRY_U32("clock-frequency", 16000000),
74         {}
75 };
76
77 static const struct software_node mcp251x_node = {
78         .properties = mcp251x_properties,
79 };
80
81 static struct spi_board_info mcp251x_board_info[] = {
82         {
83                 .modalias        = "mcp2515",
84                 .max_speed_hz    = 6500000,
85                 .bus_num         = 3,
86                 .chip_select     = 0,
87                 .swnode          = &mcp251x_node,
88                 .controller_data = &mcp251x_chip_info1,
89                 .irq             = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ1)
90         },
91         {
92                 .modalias        = "mcp2515",
93                 .max_speed_hz    = 6500000,
94                 .bus_num         = 3,
95                 .chip_select     = 1,
96                 .swnode          = &mcp251x_node,
97                 .controller_data = &mcp251x_chip_info2,
98                 .irq             = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ2)
99         },
100         {
101                 .modalias        = "mcp2515",
102                 .max_speed_hz    = 6500000,
103                 .bus_num         = 4,
104                 .chip_select     = 0,
105                 .swnode          = &mcp251x_node,
106                 .controller_data = &mcp251x_chip_info3,
107                 .irq             = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ3)
108         },
109         {
110                 .modalias        = "mcp2515",
111                 .max_speed_hz    = 6500000,
112                 .bus_num         = 4,
113                 .chip_select     = 1,
114                 .swnode          = &mcp251x_node,
115                 .controller_data = &mcp251x_chip_info4,
116                 .irq             = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ4)
117         }
118 };
119
120 static struct pxa2xx_spi_controller pxa_ssp3_spi_master_info = {
121         .num_chipselect = 2,
122         .enable_dma     = 1
123 };
124
125 static struct pxa2xx_spi_controller pxa_ssp4_spi_master_info = {
126         .num_chipselect = 2,
127         .enable_dma     = 1
128 };
129
130 struct platform_device pxa_spi_ssp3 = {
131         .name          = "pxa2xx-spi",
132         .id            = 3,
133         .dev           = {
134                 .platform_data = &pxa_ssp3_spi_master_info,
135         }
136 };
137
138 struct platform_device pxa_spi_ssp4 = {
139         .name          = "pxa2xx-spi",
140         .id            = 4,
141         .dev           = {
142                 .platform_data = &pxa_ssp4_spi_master_info,
143         }
144 };
145
146 static struct platform_device *icontrol_spi_devices[] __initdata = {
147         &pxa_spi_ssp3,
148         &pxa_spi_ssp4,
149 };
150
151 static mfp_cfg_t mfp_can_cfg[] __initdata = {
152         /* CAN CS lines */
153         GPIO15_GPIO,
154         GPIO16_GPIO,
155         GPIO17_GPIO,
156         GPIO24_GPIO,
157
158         /* SPI (SSP3) lines */
159         GPIO89_SSP3_SCLK,
160         GPIO91_SSP3_TXD,
161         GPIO92_SSP3_RXD,
162
163         /* SPI (SSP4) lines */
164         GPIO93_SSP4_SCLK,
165         GPIO95_SSP4_TXD,
166         GPIO96_SSP4_RXD,
167
168         /* CAN nIRQ lines */
169         GPIO74_GPIO | MFP_LPM_EDGE_RISE,
170         GPIO75_GPIO | MFP_LPM_EDGE_RISE,
171         GPIO76_GPIO | MFP_LPM_EDGE_RISE,
172         GPIO77_GPIO | MFP_LPM_EDGE_RISE
173 };
174
175 static void __init icontrol_can_init(void)
176 {
177         pxa3xx_mfp_config(ARRAY_AND_SIZE(mfp_can_cfg));
178         platform_add_devices(ARRAY_AND_SIZE(icontrol_spi_devices));
179         spi_register_board_info(ARRAY_AND_SIZE(mcp251x_board_info));
180 }
181
182 static void __init icontrol_init(void)
183 {
184         mxm_8x10_barebones_init();
185         mxm_8x10_usb_host_init();
186         mxm_8x10_mmc_init();
187
188         icontrol_can_init();
189
190         regulator_has_full_constraints();
191 }
192
193 MACHINE_START(ICONTROL, "iControl/SafeTcam boards using Embedian MXM-8x10 CoM")
194         .atag_offset    = 0x100,
195         .map_io         = pxa3xx_map_io,
196         .nr_irqs        = PXA_NR_IRQS,
197         .init_irq       = pxa3xx_init_irq,
198         .handle_irq     = pxa3xx_handle_irq,
199         .init_time      = pxa_timer_init,
200         .init_machine   = icontrol_init,
201         .restart        = pxa_restart,
202 MACHINE_END