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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/property.h>
16#include <linux/gpio/machine.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
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};
46
47static struct pxa2xx_spi_chip mcp251x_chip_info2 = {
48 .tx_threshold = 8,
49 .rx_threshold = 128,
50 .dma_burst_size = 8,
51 .timeout = 235,
52};
53
54static struct pxa2xx_spi_chip mcp251x_chip_info3 = {
55 .tx_threshold = 8,
56 .rx_threshold = 128,
57 .dma_burst_size = 8,
58 .timeout = 235,
59};
60
61static struct pxa2xx_spi_chip mcp251x_chip_info4 = {
62 .tx_threshold = 8,
63 .rx_threshold = 128,
64 .dma_burst_size = 8,
65 .timeout = 235,
66};
67
68static const struct property_entry mcp251x_properties[] = {
69 PROPERTY_ENTRY_U32("clock-frequency", 16000000),
70 {}
71};
72
73static const struct software_node mcp251x_node = {
74 .properties = mcp251x_properties,
75};
76
77static struct spi_board_info mcp251x_board_info[] = {
78 {
79 .modalias = "mcp2515",
80 .max_speed_hz = 6500000,
81 .bus_num = 3,
82 .chip_select = 0,
83 .swnode = &mcp251x_node,
84 .controller_data = &mcp251x_chip_info1,
85 .irq = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ1)
86 },
87 {
88 .modalias = "mcp2515",
89 .max_speed_hz = 6500000,
90 .bus_num = 3,
91 .chip_select = 1,
92 .swnode = &mcp251x_node,
93 .controller_data = &mcp251x_chip_info2,
94 .irq = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ2)
95 },
96 {
97 .modalias = "mcp2515",
98 .max_speed_hz = 6500000,
99 .bus_num = 4,
100 .chip_select = 0,
101 .swnode = &mcp251x_node,
102 .controller_data = &mcp251x_chip_info3,
103 .irq = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ3)
104 },
105 {
106 .modalias = "mcp2515",
107 .max_speed_hz = 6500000,
108 .bus_num = 4,
109 .chip_select = 1,
110 .swnode = &mcp251x_node,
111 .controller_data = &mcp251x_chip_info4,
112 .irq = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ4)
113 }
114};
115
116static struct pxa2xx_spi_controller pxa_ssp3_spi_master_info = {
117 .num_chipselect = 2,
118 .enable_dma = 1
119};
120
121static struct pxa2xx_spi_controller pxa_ssp4_spi_master_info = {
122 .num_chipselect = 2,
123 .enable_dma = 1
124};
125
126struct platform_device pxa_spi_ssp3 = {
127 .name = "pxa2xx-spi",
128 .id = 3,
129 .dev = {
130 .platform_data = &pxa_ssp3_spi_master_info,
131 }
132};
133
134struct platform_device pxa_spi_ssp4 = {
135 .name = "pxa2xx-spi",
136 .id = 4,
137 .dev = {
138 .platform_data = &pxa_ssp4_spi_master_info,
139 }
140};
141
142static struct gpiod_lookup_table pxa_ssp3_gpio_table = {
143 .dev_id = "spi3",
144 .table = {
145 GPIO_LOOKUP_IDX("gpio-pxa", ICONTROL_MCP251x_nCS1, "cs", 0, GPIO_ACTIVE_LOW),
146 GPIO_LOOKUP_IDX("gpio-pxa", ICONTROL_MCP251x_nCS2, "cs", 1, GPIO_ACTIVE_LOW),
147 { },
148 },
149};
150
151static struct gpiod_lookup_table pxa_ssp4_gpio_table = {
152 .dev_id = "spi4",
153 .table = {
154 GPIO_LOOKUP_IDX("gpio-pxa", ICONTROL_MCP251x_nCS3, "cs", 0, GPIO_ACTIVE_LOW),
155 GPIO_LOOKUP_IDX("gpio-pxa", ICONTROL_MCP251x_nCS4, "cs", 1, GPIO_ACTIVE_LOW),
156 { },
157 },
158};
159
160static struct platform_device *icontrol_spi_devices[] __initdata = {
161 &pxa_spi_ssp3,
162 &pxa_spi_ssp4,
163};
164
165static mfp_cfg_t mfp_can_cfg[] __initdata = {
166 /* CAN CS lines */
167 GPIO15_GPIO,
168 GPIO16_GPIO,
169 GPIO17_GPIO,
170 GPIO24_GPIO,
171
172 /* SPI (SSP3) lines */
173 GPIO89_SSP3_SCLK,
174 GPIO91_SSP3_TXD,
175 GPIO92_SSP3_RXD,
176
177 /* SPI (SSP4) lines */
178 GPIO93_SSP4_SCLK,
179 GPIO95_SSP4_TXD,
180 GPIO96_SSP4_RXD,
181
182 /* CAN nIRQ lines */
183 GPIO74_GPIO | MFP_LPM_EDGE_RISE,
184 GPIO75_GPIO | MFP_LPM_EDGE_RISE,
185 GPIO76_GPIO | MFP_LPM_EDGE_RISE,
186 GPIO77_GPIO | MFP_LPM_EDGE_RISE
187};
188
189static void __init icontrol_can_init(void)
190{
191 pxa3xx_mfp_config(ARRAY_AND_SIZE(mfp_can_cfg));
192 gpiod_add_lookup_table(&pxa_ssp3_gpio_table);
193 gpiod_add_lookup_table(&pxa_ssp4_gpio_table);
194 platform_add_devices(ARRAY_AND_SIZE(icontrol_spi_devices));
195 spi_register_board_info(ARRAY_AND_SIZE(mcp251x_board_info));
196}
197
198static void __init icontrol_init(void)
199{
200 mxm_8x10_barebones_init();
201 mxm_8x10_usb_host_init();
202 mxm_8x10_mmc_init();
203
204 icontrol_can_init();
205
206 regulator_has_full_constraints();
207}
208
209MACHINE_START(ICONTROL, "iControl/SafeTcam boards using Embedian MXM-8x10 CoM")
210 .atag_offset = 0x100,
211 .map_io = pxa3xx_map_io,
212 .nr_irqs = PXA_NR_IRQS,
213 .init_irq = pxa3xx_init_irq,
214 .handle_irq = pxa3xx_handle_irq,
215 .init_time = pxa_timer_init,
216 .init_machine = icontrol_init,
217 .restart = pxa_restart,
218MACHINE_END