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1/*
2 * arch/arm/mach-ep93xx/vision_ep9307.c
3 * Vision Engraving Systems EP9307 SoM support.
4 *
5 * Copyright (C) 2008-2011 Vision Engraving Systems
6 * H Hartley Sweeten <hsweeten@visionengravers.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or (at
11 * your option) any later version.
12 */
13
14#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
15
16#include <linux/kernel.h>
17#include <linux/init.h>
18#include <linux/platform_device.h>
19#include <linux/irq.h>
20#include <linux/gpio.h>
21#include <linux/fb.h>
22#include <linux/io.h>
23#include <linux/mtd/partitions.h>
24#include <linux/i2c.h>
25#include <linux/platform_data/pca953x.h>
26#include <linux/spi/spi.h>
27#include <linux/spi/flash.h>
28#include <linux/spi/mmc_spi.h>
29#include <linux/mmc/host.h>
30
31#include <sound/cs4271.h>
32
33#include <mach/hardware.h>
34#include <linux/platform_data/video-ep93xx.h>
35#include <linux/platform_data/spi-ep93xx.h>
36#include <mach/gpio-ep93xx.h>
37
38#include <asm/mach-types.h>
39#include <asm/mach/map.h>
40#include <asm/mach/arch.h>
41
42#include "soc.h"
43
44/*************************************************************************
45 * Static I/O mappings for the FPGA
46 *************************************************************************/
47#define VISION_PHYS_BASE EP93XX_CS7_PHYS_BASE
48#define VISION_VIRT_BASE 0xfebff000
49
50static struct map_desc vision_io_desc[] __initdata = {
51 {
52 .virtual = VISION_VIRT_BASE,
53 .pfn = __phys_to_pfn(VISION_PHYS_BASE),
54 .length = SZ_4K,
55 .type = MT_DEVICE,
56 },
57};
58
59static void __init vision_map_io(void)
60{
61 ep93xx_map_io();
62
63 iotable_init(vision_io_desc, ARRAY_SIZE(vision_io_desc));
64}
65
66/*************************************************************************
67 * Ethernet
68 *************************************************************************/
69static struct ep93xx_eth_data vision_eth_data __initdata = {
70 .phy_id = 1,
71};
72
73/*************************************************************************
74 * Framebuffer
75 *************************************************************************/
76#define VISION_LCD_ENABLE EP93XX_GPIO_LINE_EGPIO1
77
78static int vision_lcd_setup(struct platform_device *pdev)
79{
80 int err;
81
82 err = gpio_request_one(VISION_LCD_ENABLE, GPIOF_INIT_HIGH,
83 dev_name(&pdev->dev));
84 if (err)
85 return err;
86
87 ep93xx_devcfg_clear_bits(EP93XX_SYSCON_DEVCFG_RAS |
88 EP93XX_SYSCON_DEVCFG_RASONP3 |
89 EP93XX_SYSCON_DEVCFG_EXVC);
90
91 return 0;
92}
93
94static void vision_lcd_teardown(struct platform_device *pdev)
95{
96 gpio_free(VISION_LCD_ENABLE);
97}
98
99static void vision_lcd_blank(int blank_mode, struct fb_info *info)
100{
101 if (blank_mode)
102 gpio_set_value(VISION_LCD_ENABLE, 0);
103 else
104 gpio_set_value(VISION_LCD_ENABLE, 1);
105}
106
107static struct ep93xxfb_mach_info ep93xxfb_info __initdata = {
108 .flags = EP93XXFB_USE_SDCSN0 | EP93XXFB_PCLK_FALLING,
109 .setup = vision_lcd_setup,
110 .teardown = vision_lcd_teardown,
111 .blank = vision_lcd_blank,
112};
113
114
115/*************************************************************************
116 * GPIO Expanders
117 *************************************************************************/
118#define PCA9539_74_GPIO_BASE (EP93XX_GPIO_LINE_MAX + 1)
119#define PCA9539_75_GPIO_BASE (PCA9539_74_GPIO_BASE + 16)
120#define PCA9539_76_GPIO_BASE (PCA9539_75_GPIO_BASE + 16)
121#define PCA9539_77_GPIO_BASE (PCA9539_76_GPIO_BASE + 16)
122
123static struct pca953x_platform_data pca953x_74_gpio_data = {
124 .gpio_base = PCA9539_74_GPIO_BASE,
125 .irq_base = EP93XX_BOARD_IRQ(0),
126};
127
128static struct pca953x_platform_data pca953x_75_gpio_data = {
129 .gpio_base = PCA9539_75_GPIO_BASE,
130 .irq_base = -1,
131};
132
133static struct pca953x_platform_data pca953x_76_gpio_data = {
134 .gpio_base = PCA9539_76_GPIO_BASE,
135 .irq_base = -1,
136};
137
138static struct pca953x_platform_data pca953x_77_gpio_data = {
139 .gpio_base = PCA9539_77_GPIO_BASE,
140 .irq_base = -1,
141};
142
143/*************************************************************************
144 * I2C Bus
145 *************************************************************************/
146
147static struct i2c_board_info vision_i2c_info[] __initdata = {
148 {
149 I2C_BOARD_INFO("isl1208", 0x6f),
150 .irq = IRQ_EP93XX_EXT1,
151 }, {
152 I2C_BOARD_INFO("pca9539", 0x74),
153 .platform_data = &pca953x_74_gpio_data,
154 }, {
155 I2C_BOARD_INFO("pca9539", 0x75),
156 .platform_data = &pca953x_75_gpio_data,
157 }, {
158 I2C_BOARD_INFO("pca9539", 0x76),
159 .platform_data = &pca953x_76_gpio_data,
160 }, {
161 I2C_BOARD_INFO("pca9539", 0x77),
162 .platform_data = &pca953x_77_gpio_data,
163 },
164};
165
166/*************************************************************************
167 * SPI CS4271 Audio Codec
168 *************************************************************************/
169static struct cs4271_platform_data vision_cs4271_data = {
170 .gpio_nreset = EP93XX_GPIO_LINE_H(2),
171};
172
173/*************************************************************************
174 * SPI Flash
175 *************************************************************************/
176static struct mtd_partition vision_spi_flash_partitions[] = {
177 {
178 .name = "SPI bootstrap",
179 .offset = 0,
180 .size = SZ_4K,
181 }, {
182 .name = "Bootstrap config",
183 .offset = MTDPART_OFS_APPEND,
184 .size = SZ_4K,
185 }, {
186 .name = "System config",
187 .offset = MTDPART_OFS_APPEND,
188 .size = MTDPART_SIZ_FULL,
189 },
190};
191
192static struct flash_platform_data vision_spi_flash_data = {
193 .name = "SPI Flash",
194 .parts = vision_spi_flash_partitions,
195 .nr_parts = ARRAY_SIZE(vision_spi_flash_partitions),
196};
197
198/*************************************************************************
199 * SPI SD/MMC host
200 *************************************************************************/
201static struct mmc_spi_platform_data vision_spi_mmc_data = {
202 .detect_delay = 100,
203 .powerup_msecs = 100,
204 .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
205 .flags = MMC_SPI_USE_CD_GPIO | MMC_SPI_USE_RO_GPIO,
206 .cd_gpio = EP93XX_GPIO_LINE_EGPIO15,
207 .cd_debounce = 1,
208 .ro_gpio = EP93XX_GPIO_LINE_F(0),
209 .caps2 = MMC_CAP2_RO_ACTIVE_HIGH,
210};
211
212/*************************************************************************
213 * SPI Bus
214 *************************************************************************/
215static struct spi_board_info vision_spi_board_info[] __initdata = {
216 {
217 .modalias = "cs4271",
218 .platform_data = &vision_cs4271_data,
219 .max_speed_hz = 6000000,
220 .bus_num = 0,
221 .chip_select = 0,
222 .mode = SPI_MODE_3,
223 }, {
224 .modalias = "sst25l",
225 .platform_data = &vision_spi_flash_data,
226 .max_speed_hz = 20000000,
227 .bus_num = 0,
228 .chip_select = 1,
229 .mode = SPI_MODE_3,
230 }, {
231 .modalias = "mmc_spi",
232 .platform_data = &vision_spi_mmc_data,
233 .max_speed_hz = 20000000,
234 .bus_num = 0,
235 .chip_select = 2,
236 .mode = SPI_MODE_3,
237 },
238};
239
240static int vision_spi_chipselects[] __initdata = {
241 EP93XX_GPIO_LINE_EGPIO6,
242 EP93XX_GPIO_LINE_EGPIO7,
243 EP93XX_GPIO_LINE_G(2),
244};
245
246static struct ep93xx_spi_info vision_spi_master __initdata = {
247 .chipselect = vision_spi_chipselects,
248 .num_chipselect = ARRAY_SIZE(vision_spi_chipselects),
249 .use_dma = 1,
250};
251
252/*************************************************************************
253 * I2S Audio
254 *************************************************************************/
255static struct platform_device vision_audio_device = {
256 .name = "edb93xx-audio",
257 .id = -1,
258};
259
260static void __init vision_register_i2s(void)
261{
262 ep93xx_register_i2s();
263 platform_device_register(&vision_audio_device);
264}
265
266/*************************************************************************
267 * Machine Initialization
268 *************************************************************************/
269static void __init vision_init_machine(void)
270{
271 ep93xx_init_devices();
272 ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_64M);
273 ep93xx_register_eth(&vision_eth_data, 1);
274 ep93xx_register_fb(&ep93xxfb_info);
275 ep93xx_register_pwm(1, 0);
276
277 /*
278 * Request the gpio expander's interrupt gpio line now to prevent
279 * the kernel from doing a WARN in gpiolib:gpio_ensure_requested().
280 */
281 if (gpio_request_one(EP93XX_GPIO_LINE_F(7), GPIOF_DIR_IN,
282 "pca9539:74"))
283 pr_warn("cannot request interrupt gpio for pca9539:74\n");
284
285 vision_i2c_info[1].irq = gpio_to_irq(EP93XX_GPIO_LINE_F(7));
286
287 ep93xx_register_i2c(vision_i2c_info,
288 ARRAY_SIZE(vision_i2c_info));
289 ep93xx_register_spi(&vision_spi_master, vision_spi_board_info,
290 ARRAY_SIZE(vision_spi_board_info));
291 vision_register_i2s();
292}
293
294MACHINE_START(VISION_EP9307, "Vision Engraving Systems EP9307")
295 /* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */
296 .atag_offset = 0x100,
297 .map_io = vision_map_io,
298 .init_irq = ep93xx_init_irq,
299 .init_time = ep93xx_timer_init,
300 .init_machine = vision_init_machine,
301 .init_late = ep93xx_init_late,
302 .restart = ep93xx_restart,
303MACHINE_END
1/*
2 * arch/arm/mach-ep93xx/vision_ep9307.c
3 * Vision Engraving Systems EP9307 SoM support.
4 *
5 * Copyright (C) 2008-2011 Vision Engraving Systems
6 * H Hartley Sweeten <hsweeten@visionengravers.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or (at
11 * your option) any later version.
12 */
13
14#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
15
16#include <linux/kernel.h>
17#include <linux/init.h>
18#include <linux/platform_device.h>
19#include <linux/irq.h>
20#include <linux/gpio.h>
21#include <linux/fb.h>
22#include <linux/io.h>
23#include <linux/mtd/partitions.h>
24#include <linux/i2c.h>
25#include <linux/i2c-gpio.h>
26#include <linux/platform_data/pca953x.h>
27#include <linux/spi/spi.h>
28#include <linux/spi/flash.h>
29#include <linux/spi/mmc_spi.h>
30#include <linux/mmc/host.h>
31
32#include <mach/hardware.h>
33#include <linux/platform_data/video-ep93xx.h>
34#include <linux/platform_data/spi-ep93xx.h>
35#include <mach/gpio-ep93xx.h>
36
37#include <asm/mach-types.h>
38#include <asm/mach/map.h>
39#include <asm/mach/arch.h>
40
41#include "soc.h"
42
43/*************************************************************************
44 * Static I/O mappings for the FPGA
45 *************************************************************************/
46#define VISION_PHYS_BASE EP93XX_CS7_PHYS_BASE
47#define VISION_VIRT_BASE 0xfebff000
48
49static struct map_desc vision_io_desc[] __initdata = {
50 {
51 .virtual = VISION_VIRT_BASE,
52 .pfn = __phys_to_pfn(VISION_PHYS_BASE),
53 .length = SZ_4K,
54 .type = MT_DEVICE,
55 },
56};
57
58static void __init vision_map_io(void)
59{
60 ep93xx_map_io();
61
62 iotable_init(vision_io_desc, ARRAY_SIZE(vision_io_desc));
63}
64
65/*************************************************************************
66 * Ethernet
67 *************************************************************************/
68static struct ep93xx_eth_data vision_eth_data __initdata = {
69 .phy_id = 1,
70};
71
72/*************************************************************************
73 * Framebuffer
74 *************************************************************************/
75#define VISION_LCD_ENABLE EP93XX_GPIO_LINE_EGPIO1
76
77static int vision_lcd_setup(struct platform_device *pdev)
78{
79 int err;
80
81 err = gpio_request_one(VISION_LCD_ENABLE, GPIOF_INIT_HIGH,
82 dev_name(&pdev->dev));
83 if (err)
84 return err;
85
86 ep93xx_devcfg_clear_bits(EP93XX_SYSCON_DEVCFG_RAS |
87 EP93XX_SYSCON_DEVCFG_RASONP3 |
88 EP93XX_SYSCON_DEVCFG_EXVC);
89
90 return 0;
91}
92
93static void vision_lcd_teardown(struct platform_device *pdev)
94{
95 gpio_free(VISION_LCD_ENABLE);
96}
97
98static void vision_lcd_blank(int blank_mode, struct fb_info *info)
99{
100 if (blank_mode)
101 gpio_set_value(VISION_LCD_ENABLE, 0);
102 else
103 gpio_set_value(VISION_LCD_ENABLE, 1);
104}
105
106static struct ep93xxfb_mach_info ep93xxfb_info __initdata = {
107 .num_modes = EP93XXFB_USE_MODEDB,
108 .bpp = 16,
109 .flags = EP93XXFB_USE_SDCSN0 | EP93XXFB_PCLK_FALLING,
110 .setup = vision_lcd_setup,
111 .teardown = vision_lcd_teardown,
112 .blank = vision_lcd_blank,
113};
114
115
116/*************************************************************************
117 * GPIO Expanders
118 *************************************************************************/
119#define PCA9539_74_GPIO_BASE (EP93XX_GPIO_LINE_MAX + 1)
120#define PCA9539_75_GPIO_BASE (PCA9539_74_GPIO_BASE + 16)
121#define PCA9539_76_GPIO_BASE (PCA9539_75_GPIO_BASE + 16)
122#define PCA9539_77_GPIO_BASE (PCA9539_76_GPIO_BASE + 16)
123
124static struct pca953x_platform_data pca953x_74_gpio_data = {
125 .gpio_base = PCA9539_74_GPIO_BASE,
126 .irq_base = EP93XX_BOARD_IRQ(0),
127};
128
129static struct pca953x_platform_data pca953x_75_gpio_data = {
130 .gpio_base = PCA9539_75_GPIO_BASE,
131 .irq_base = -1,
132};
133
134static struct pca953x_platform_data pca953x_76_gpio_data = {
135 .gpio_base = PCA9539_76_GPIO_BASE,
136 .irq_base = -1,
137};
138
139static struct pca953x_platform_data pca953x_77_gpio_data = {
140 .gpio_base = PCA9539_77_GPIO_BASE,
141 .irq_base = -1,
142};
143
144/*************************************************************************
145 * I2C Bus
146 *************************************************************************/
147static struct i2c_gpio_platform_data vision_i2c_gpio_data __initdata = {
148 .sda_pin = EP93XX_GPIO_LINE_EEDAT,
149 .scl_pin = EP93XX_GPIO_LINE_EECLK,
150};
151
152static struct i2c_board_info vision_i2c_info[] __initdata = {
153 {
154 I2C_BOARD_INFO("isl1208", 0x6f),
155 .irq = IRQ_EP93XX_EXT1,
156 }, {
157 I2C_BOARD_INFO("pca9539", 0x74),
158 .platform_data = &pca953x_74_gpio_data,
159 }, {
160 I2C_BOARD_INFO("pca9539", 0x75),
161 .platform_data = &pca953x_75_gpio_data,
162 }, {
163 I2C_BOARD_INFO("pca9539", 0x76),
164 .platform_data = &pca953x_76_gpio_data,
165 }, {
166 I2C_BOARD_INFO("pca9539", 0x77),
167 .platform_data = &pca953x_77_gpio_data,
168 },
169};
170
171/*************************************************************************
172 * SPI Flash
173 *************************************************************************/
174#define VISION_SPI_FLASH_CS EP93XX_GPIO_LINE_EGPIO7
175
176static struct mtd_partition vision_spi_flash_partitions[] = {
177 {
178 .name = "SPI bootstrap",
179 .offset = 0,
180 .size = SZ_4K,
181 }, {
182 .name = "Bootstrap config",
183 .offset = MTDPART_OFS_APPEND,
184 .size = SZ_4K,
185 }, {
186 .name = "System config",
187 .offset = MTDPART_OFS_APPEND,
188 .size = MTDPART_SIZ_FULL,
189 },
190};
191
192static struct flash_platform_data vision_spi_flash_data = {
193 .name = "SPI Flash",
194 .parts = vision_spi_flash_partitions,
195 .nr_parts = ARRAY_SIZE(vision_spi_flash_partitions),
196};
197
198static int vision_spi_flash_hw_setup(struct spi_device *spi)
199{
200 return gpio_request_one(VISION_SPI_FLASH_CS, GPIOF_INIT_HIGH,
201 spi->modalias);
202}
203
204static void vision_spi_flash_hw_cleanup(struct spi_device *spi)
205{
206 gpio_free(VISION_SPI_FLASH_CS);
207}
208
209static void vision_spi_flash_hw_cs_control(struct spi_device *spi, int value)
210{
211 gpio_set_value(VISION_SPI_FLASH_CS, value);
212}
213
214static struct ep93xx_spi_chip_ops vision_spi_flash_hw = {
215 .setup = vision_spi_flash_hw_setup,
216 .cleanup = vision_spi_flash_hw_cleanup,
217 .cs_control = vision_spi_flash_hw_cs_control,
218};
219
220/*************************************************************************
221 * SPI SD/MMC host
222 *************************************************************************/
223#define VISION_SPI_MMC_CS EP93XX_GPIO_LINE_G(2)
224#define VISION_SPI_MMC_WP EP93XX_GPIO_LINE_F(0)
225#define VISION_SPI_MMC_CD EP93XX_GPIO_LINE_EGPIO15
226
227static struct mmc_spi_platform_data vision_spi_mmc_data = {
228 .detect_delay = 100,
229 .powerup_msecs = 100,
230 .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
231 .flags = MMC_SPI_USE_CD_GPIO | MMC_SPI_USE_RO_GPIO,
232 .cd_gpio = VISION_SPI_MMC_CD,
233 .cd_debounce = 1,
234 .ro_gpio = VISION_SPI_MMC_WP,
235 .caps2 = MMC_CAP2_RO_ACTIVE_HIGH,
236};
237
238static int vision_spi_mmc_hw_setup(struct spi_device *spi)
239{
240 return gpio_request_one(VISION_SPI_MMC_CS, GPIOF_INIT_HIGH,
241 spi->modalias);
242}
243
244static void vision_spi_mmc_hw_cleanup(struct spi_device *spi)
245{
246 gpio_free(VISION_SPI_MMC_CS);
247}
248
249static void vision_spi_mmc_hw_cs_control(struct spi_device *spi, int value)
250{
251 gpio_set_value(VISION_SPI_MMC_CS, value);
252}
253
254static struct ep93xx_spi_chip_ops vision_spi_mmc_hw = {
255 .setup = vision_spi_mmc_hw_setup,
256 .cleanup = vision_spi_mmc_hw_cleanup,
257 .cs_control = vision_spi_mmc_hw_cs_control,
258};
259
260/*************************************************************************
261 * SPI Bus
262 *************************************************************************/
263static struct spi_board_info vision_spi_board_info[] __initdata = {
264 {
265 .modalias = "sst25l",
266 .platform_data = &vision_spi_flash_data,
267 .controller_data = &vision_spi_flash_hw,
268 .max_speed_hz = 20000000,
269 .bus_num = 0,
270 .chip_select = 0,
271 .mode = SPI_MODE_3,
272 }, {
273 .modalias = "mmc_spi",
274 .platform_data = &vision_spi_mmc_data,
275 .controller_data = &vision_spi_mmc_hw,
276 .max_speed_hz = 20000000,
277 .bus_num = 0,
278 .chip_select = 1,
279 .mode = SPI_MODE_3,
280 },
281};
282
283static struct ep93xx_spi_info vision_spi_master __initdata = {
284 .num_chipselect = ARRAY_SIZE(vision_spi_board_info),
285};
286
287/*************************************************************************
288 * Machine Initialization
289 *************************************************************************/
290static void __init vision_init_machine(void)
291{
292 ep93xx_init_devices();
293 ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_64M);
294 ep93xx_register_eth(&vision_eth_data, 1);
295 ep93xx_register_fb(&ep93xxfb_info);
296 ep93xx_register_pwm(1, 0);
297
298 /*
299 * Request the gpio expander's interrupt gpio line now to prevent
300 * the kernel from doing a WARN in gpiolib:gpio_ensure_requested().
301 */
302 if (gpio_request_one(EP93XX_GPIO_LINE_F(7), GPIOF_DIR_IN,
303 "pca9539:74"))
304 pr_warn("cannot request interrupt gpio for pca9539:74\n");
305
306 vision_i2c_info[1].irq = gpio_to_irq(EP93XX_GPIO_LINE_F(7));
307
308 ep93xx_register_i2c(&vision_i2c_gpio_data, vision_i2c_info,
309 ARRAY_SIZE(vision_i2c_info));
310 ep93xx_register_spi(&vision_spi_master, vision_spi_board_info,
311 ARRAY_SIZE(vision_spi_board_info));
312}
313
314MACHINE_START(VISION_EP9307, "Vision Engraving Systems EP9307")
315 /* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */
316 .atag_offset = 0x100,
317 .map_io = vision_map_io,
318 .init_irq = ep93xx_init_irq,
319 .init_time = ep93xx_timer_init,
320 .init_machine = vision_init_machine,
321 .init_late = ep93xx_init_late,
322 .restart = ep93xx_restart,
323MACHINE_END