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1/*
2 * linux/arch/arm/mach-pxa/icontrol.c
3 *
4 * Support for the iControl and SafeTcam platforms from TMT Services
5 * using the Embedian MXM-8x10 Computer on Module
6 *
7 * Copyright (C) 2009 TMT Services & Supplies (Pty) Ltd.
8 *
9 * 2010-01-21 Hennie van der Merve <hvdmerwe@tmtservies.co.za>
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License version 2 as
13 * published by the Free Software Foundation.
14 */
15
16#include <linux/irq.h>
17#include <linux/platform_device.h>
18#include <linux/gpio.h>
19
20#include <asm/mach-types.h>
21#include <asm/mach/arch.h>
22
23#include <mach/pxa320.h>
24#include <mach/mxm8x10.h>
25
26#include <linux/spi/spi.h>
27#include <linux/spi/pxa2xx_spi.h>
28#include <linux/can/platform/mcp251x.h>
29
30#include "generic.h"
31
32#define ICONTROL_MCP251x_nCS1 (15)
33#define ICONTROL_MCP251x_nCS2 (16)
34#define ICONTROL_MCP251x_nCS3 (17)
35#define ICONTROL_MCP251x_nCS4 (24)
36
37#define ICONTROL_MCP251x_nIRQ1 (74)
38#define ICONTROL_MCP251x_nIRQ2 (75)
39#define ICONTROL_MCP251x_nIRQ3 (76)
40#define ICONTROL_MCP251x_nIRQ4 (77)
41
42static struct pxa2xx_spi_chip mcp251x_chip_info1 = {
43 .tx_threshold = 8,
44 .rx_threshold = 128,
45 .dma_burst_size = 8,
46 .timeout = 235,
47 .gpio_cs = ICONTROL_MCP251x_nCS1
48};
49
50static struct pxa2xx_spi_chip mcp251x_chip_info2 = {
51 .tx_threshold = 8,
52 .rx_threshold = 128,
53 .dma_burst_size = 8,
54 .timeout = 235,
55 .gpio_cs = ICONTROL_MCP251x_nCS2
56};
57
58static struct pxa2xx_spi_chip mcp251x_chip_info3 = {
59 .tx_threshold = 8,
60 .rx_threshold = 128,
61 .dma_burst_size = 8,
62 .timeout = 235,
63 .gpio_cs = ICONTROL_MCP251x_nCS3
64};
65
66static struct pxa2xx_spi_chip mcp251x_chip_info4 = {
67 .tx_threshold = 8,
68 .rx_threshold = 128,
69 .dma_burst_size = 8,
70 .timeout = 235,
71 .gpio_cs = ICONTROL_MCP251x_nCS4
72};
73
74static struct mcp251x_platform_data mcp251x_info = {
75 .oscillator_frequency = 16E6,
76};
77
78static struct spi_board_info mcp251x_board_info[] = {
79 {
80 .modalias = "mcp2515",
81 .max_speed_hz = 6500000,
82 .bus_num = 3,
83 .chip_select = 0,
84 .platform_data = &mcp251x_info,
85 .controller_data = &mcp251x_chip_info1,
86 .irq = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ1)
87 },
88 {
89 .modalias = "mcp2515",
90 .max_speed_hz = 6500000,
91 .bus_num = 3,
92 .chip_select = 1,
93 .platform_data = &mcp251x_info,
94 .controller_data = &mcp251x_chip_info2,
95 .irq = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ2)
96 },
97 {
98 .modalias = "mcp2515",
99 .max_speed_hz = 6500000,
100 .bus_num = 4,
101 .chip_select = 0,
102 .platform_data = &mcp251x_info,
103 .controller_data = &mcp251x_chip_info3,
104 .irq = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ3)
105 },
106 {
107 .modalias = "mcp2515",
108 .max_speed_hz = 6500000,
109 .bus_num = 4,
110 .chip_select = 1,
111 .platform_data = &mcp251x_info,
112 .controller_data = &mcp251x_chip_info4,
113 .irq = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ4)
114 }
115};
116
117static struct pxa2xx_spi_master pxa_ssp3_spi_master_info = {
118 .clock_enable = CKEN_SSP3,
119 .num_chipselect = 2,
120 .enable_dma = 1
121};
122
123static struct pxa2xx_spi_master pxa_ssp4_spi_master_info = {
124 .clock_enable = CKEN_SSP4,
125 .num_chipselect = 2,
126 .enable_dma = 1
127};
128
129struct platform_device pxa_spi_ssp3 = {
130 .name = "pxa2xx-spi",
131 .id = 3,
132 .dev = {
133 .platform_data = &pxa_ssp3_spi_master_info,
134 }
135};
136
137struct platform_device pxa_spi_ssp4 = {
138 .name = "pxa2xx-spi",
139 .id = 4,
140 .dev = {
141 .platform_data = &pxa_ssp4_spi_master_info,
142 }
143};
144
145static struct platform_device *icontrol_spi_devices[] __initdata = {
146 &pxa_spi_ssp3,
147 &pxa_spi_ssp4,
148};
149
150static mfp_cfg_t mfp_can_cfg[] __initdata = {
151 /* CAN CS lines */
152 GPIO15_GPIO,
153 GPIO16_GPIO,
154 GPIO17_GPIO,
155 GPIO24_GPIO,
156
157 /* SPI (SSP3) lines */
158 GPIO89_SSP3_SCLK,
159 GPIO91_SSP3_TXD,
160 GPIO92_SSP3_RXD,
161
162 /* SPI (SSP4) lines */
163 GPIO93_SSP4_SCLK,
164 GPIO95_SSP4_TXD,
165 GPIO96_SSP4_RXD,
166
167 /* CAN nIRQ lines */
168 GPIO74_GPIO | MFP_LPM_EDGE_RISE,
169 GPIO75_GPIO | MFP_LPM_EDGE_RISE,
170 GPIO76_GPIO | MFP_LPM_EDGE_RISE,
171 GPIO77_GPIO | MFP_LPM_EDGE_RISE
172};
173
174static void __init icontrol_can_init(void)
175{
176 pxa3xx_mfp_config(ARRAY_AND_SIZE(mfp_can_cfg));
177 platform_add_devices(ARRAY_AND_SIZE(icontrol_spi_devices));
178 spi_register_board_info(ARRAY_AND_SIZE(mcp251x_board_info));
179}
180
181static void __init icontrol_init(void)
182{
183 mxm_8x10_barebones_init();
184 mxm_8x10_usb_host_init();
185 mxm_8x10_mmc_init();
186
187 icontrol_can_init();
188}
189
190MACHINE_START(ICONTROL, "iControl/SafeTcam boards using Embedian MXM-8x10 CoM")
191 .atag_offset = 0x100,
192 .map_io = pxa3xx_map_io,
193 .nr_irqs = PXA_NR_IRQS,
194 .init_irq = pxa3xx_init_irq,
195 .handle_irq = pxa3xx_handle_irq,
196 .init_time = pxa_timer_init,
197 .init_machine = icontrol_init,
198 .restart = pxa_restart,
199MACHINE_END
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/gpio.h>
16
17#include <asm/mach-types.h>
18#include <asm/mach/arch.h>
19
20#include "pxa320.h"
21#include "mxm8x10.h"
22
23#include <linux/spi/spi.h>
24#include <linux/spi/pxa2xx_spi.h>
25#include <linux/can/platform/mcp251x.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
40static 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
48static 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
56static 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
64static 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
72static struct mcp251x_platform_data mcp251x_info = {
73 .oscillator_frequency = 16E6,
74};
75
76static struct spi_board_info mcp251x_board_info[] = {
77 {
78 .modalias = "mcp2515",
79 .max_speed_hz = 6500000,
80 .bus_num = 3,
81 .chip_select = 0,
82 .platform_data = &mcp251x_info,
83 .controller_data = &mcp251x_chip_info1,
84 .irq = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ1)
85 },
86 {
87 .modalias = "mcp2515",
88 .max_speed_hz = 6500000,
89 .bus_num = 3,
90 .chip_select = 1,
91 .platform_data = &mcp251x_info,
92 .controller_data = &mcp251x_chip_info2,
93 .irq = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ2)
94 },
95 {
96 .modalias = "mcp2515",
97 .max_speed_hz = 6500000,
98 .bus_num = 4,
99 .chip_select = 0,
100 .platform_data = &mcp251x_info,
101 .controller_data = &mcp251x_chip_info3,
102 .irq = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ3)
103 },
104 {
105 .modalias = "mcp2515",
106 .max_speed_hz = 6500000,
107 .bus_num = 4,
108 .chip_select = 1,
109 .platform_data = &mcp251x_info,
110 .controller_data = &mcp251x_chip_info4,
111 .irq = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ4)
112 }
113};
114
115static struct pxa2xx_spi_controller pxa_ssp3_spi_master_info = {
116 .num_chipselect = 2,
117 .enable_dma = 1
118};
119
120static struct pxa2xx_spi_controller pxa_ssp4_spi_master_info = {
121 .num_chipselect = 2,
122 .enable_dma = 1
123};
124
125struct platform_device pxa_spi_ssp3 = {
126 .name = "pxa2xx-spi",
127 .id = 3,
128 .dev = {
129 .platform_data = &pxa_ssp3_spi_master_info,
130 }
131};
132
133struct platform_device pxa_spi_ssp4 = {
134 .name = "pxa2xx-spi",
135 .id = 4,
136 .dev = {
137 .platform_data = &pxa_ssp4_spi_master_info,
138 }
139};
140
141static struct platform_device *icontrol_spi_devices[] __initdata = {
142 &pxa_spi_ssp3,
143 &pxa_spi_ssp4,
144};
145
146static mfp_cfg_t mfp_can_cfg[] __initdata = {
147 /* CAN CS lines */
148 GPIO15_GPIO,
149 GPIO16_GPIO,
150 GPIO17_GPIO,
151 GPIO24_GPIO,
152
153 /* SPI (SSP3) lines */
154 GPIO89_SSP3_SCLK,
155 GPIO91_SSP3_TXD,
156 GPIO92_SSP3_RXD,
157
158 /* SPI (SSP4) lines */
159 GPIO93_SSP4_SCLK,
160 GPIO95_SSP4_TXD,
161 GPIO96_SSP4_RXD,
162
163 /* CAN nIRQ lines */
164 GPIO74_GPIO | MFP_LPM_EDGE_RISE,
165 GPIO75_GPIO | MFP_LPM_EDGE_RISE,
166 GPIO76_GPIO | MFP_LPM_EDGE_RISE,
167 GPIO77_GPIO | MFP_LPM_EDGE_RISE
168};
169
170static void __init icontrol_can_init(void)
171{
172 pxa3xx_mfp_config(ARRAY_AND_SIZE(mfp_can_cfg));
173 platform_add_devices(ARRAY_AND_SIZE(icontrol_spi_devices));
174 spi_register_board_info(ARRAY_AND_SIZE(mcp251x_board_info));
175}
176
177static void __init icontrol_init(void)
178{
179 mxm_8x10_barebones_init();
180 mxm_8x10_usb_host_init();
181 mxm_8x10_mmc_init();
182
183 icontrol_can_init();
184
185 regulator_has_full_constraints();
186}
187
188MACHINE_START(ICONTROL, "iControl/SafeTcam boards using Embedian MXM-8x10 CoM")
189 .atag_offset = 0x100,
190 .map_io = pxa3xx_map_io,
191 .nr_irqs = PXA_NR_IRQS,
192 .init_irq = pxa3xx_init_irq,
193 .handle_irq = pxa3xx_handle_irq,
194 .init_time = pxa_timer_init,
195 .init_machine = icontrol_init,
196 .restart = pxa_restart,
197MACHINE_END