tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Copyright (C) 2009 Sascha Hauer, Pengutronix
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 */
14
15#include <linux/types.h>
16#include <linux/init.h>
17
18#include <linux/platform_device.h>
19#include <linux/mtd/physmap.h>
20#include <linux/mtd/plat-ram.h>
21#include <linux/memory.h>
22#include <linux/gpio.h>
23#include <linux/smc911x.h>
24#include <linux/interrupt.h>
25#include <linux/delay.h>
26#include <linux/i2c.h>
27#include <linux/platform_data/at24.h>
28#include <linux/usb/otg.h>
29#include <linux/usb/ulpi.h>
30
31#include <asm/mach-types.h>
32#include <asm/mach/arch.h>
33#include <asm/mach/time.h>
34#include <asm/mach/map.h>
35
36#include "common.h"
37#include "devices-imx35.h"
38#include "hardware.h"
39#include "iomux-mx35.h"
40#include "ulpi.h"
41
42static const struct fb_videomode fb_modedb[] = {
43 {
44 /* 240x320 @ 60 Hz */
45 .name = "Sharp-LQ035Q7",
46 .refresh = 60,
47 .xres = 240,
48 .yres = 320,
49 .pixclock = 185925,
50 .left_margin = 9,
51 .right_margin = 16,
52 .upper_margin = 7,
53 .lower_margin = 9,
54 .hsync_len = 1,
55 .vsync_len = 1,
56 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_SHARP_MODE | FB_SYNC_CLK_INVERT | FB_SYNC_CLK_IDLE_EN,
57 .vmode = FB_VMODE_NONINTERLACED,
58 .flag = 0,
59 }, {
60 /* 240x320 @ 60 Hz */
61 .name = "TX090",
62 .refresh = 60,
63 .xres = 240,
64 .yres = 320,
65 .pixclock = 38255,
66 .left_margin = 144,
67 .right_margin = 0,
68 .upper_margin = 7,
69 .lower_margin = 40,
70 .hsync_len = 96,
71 .vsync_len = 1,
72 .sync = FB_SYNC_VERT_HIGH_ACT | FB_SYNC_OE_ACT_HIGH,
73 .vmode = FB_VMODE_NONINTERLACED,
74 .flag = 0,
75 },
76};
77
78static struct mx3fb_platform_data mx3fb_pdata __initdata = {
79 .name = "Sharp-LQ035Q7",
80 .mode = fb_modedb,
81 .num_modes = ARRAY_SIZE(fb_modedb),
82};
83
84static struct physmap_flash_data pcm043_flash_data = {
85 .width = 2,
86};
87
88static struct resource pcm043_flash_resource = {
89 .start = 0xa0000000,
90 .end = 0xa1ffffff,
91 .flags = IORESOURCE_MEM,
92};
93
94static struct platform_device pcm043_flash = {
95 .name = "physmap-flash",
96 .id = 0,
97 .dev = {
98 .platform_data = &pcm043_flash_data,
99 },
100 .resource = &pcm043_flash_resource,
101 .num_resources = 1,
102};
103
104static const struct imxuart_platform_data uart_pdata __initconst = {
105 .flags = IMXUART_HAVE_RTSCTS,
106};
107
108static const struct imxi2c_platform_data pcm043_i2c0_data __initconst = {
109 .bitrate = 50000,
110};
111
112static struct at24_platform_data board_eeprom = {
113 .byte_len = 4096,
114 .page_size = 32,
115 .flags = AT24_FLAG_ADDR16,
116};
117
118static struct i2c_board_info pcm043_i2c_devices[] = {
119 {
120 I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
121 .platform_data = &board_eeprom,
122 }, {
123 I2C_BOARD_INFO("pcf8563", 0x51),
124 },
125};
126
127static struct platform_device *devices[] __initdata = {
128 &pcm043_flash,
129};
130
131static iomux_v3_cfg_t pcm043_pads[] = {
132 /* UART1 */
133 MX35_PAD_CTS1__UART1_CTS,
134 MX35_PAD_RTS1__UART1_RTS,
135 MX35_PAD_TXD1__UART1_TXD_MUX,
136 MX35_PAD_RXD1__UART1_RXD_MUX,
137 /* UART2 */
138 MX35_PAD_CTS2__UART2_CTS,
139 MX35_PAD_RTS2__UART2_RTS,
140 MX35_PAD_TXD2__UART2_TXD_MUX,
141 MX35_PAD_RXD2__UART2_RXD_MUX,
142 /* FEC */
143 MX35_PAD_FEC_TX_CLK__FEC_TX_CLK,
144 MX35_PAD_FEC_RX_CLK__FEC_RX_CLK,
145 MX35_PAD_FEC_RX_DV__FEC_RX_DV,
146 MX35_PAD_FEC_COL__FEC_COL,
147 MX35_PAD_FEC_RDATA0__FEC_RDATA_0,
148 MX35_PAD_FEC_TDATA0__FEC_TDATA_0,
149 MX35_PAD_FEC_TX_EN__FEC_TX_EN,
150 MX35_PAD_FEC_MDC__FEC_MDC,
151 MX35_PAD_FEC_MDIO__FEC_MDIO,
152 MX35_PAD_FEC_TX_ERR__FEC_TX_ERR,
153 MX35_PAD_FEC_RX_ERR__FEC_RX_ERR,
154 MX35_PAD_FEC_CRS__FEC_CRS,
155 MX35_PAD_FEC_RDATA1__FEC_RDATA_1,
156 MX35_PAD_FEC_TDATA1__FEC_TDATA_1,
157 MX35_PAD_FEC_RDATA2__FEC_RDATA_2,
158 MX35_PAD_FEC_TDATA2__FEC_TDATA_2,
159 MX35_PAD_FEC_RDATA3__FEC_RDATA_3,
160 MX35_PAD_FEC_TDATA3__FEC_TDATA_3,
161 /* I2C1 */
162 MX35_PAD_I2C1_CLK__I2C1_SCL,
163 MX35_PAD_I2C1_DAT__I2C1_SDA,
164 /* Display */
165 MX35_PAD_LD0__IPU_DISPB_DAT_0,
166 MX35_PAD_LD1__IPU_DISPB_DAT_1,
167 MX35_PAD_LD2__IPU_DISPB_DAT_2,
168 MX35_PAD_LD3__IPU_DISPB_DAT_3,
169 MX35_PAD_LD4__IPU_DISPB_DAT_4,
170 MX35_PAD_LD5__IPU_DISPB_DAT_5,
171 MX35_PAD_LD6__IPU_DISPB_DAT_6,
172 MX35_PAD_LD7__IPU_DISPB_DAT_7,
173 MX35_PAD_LD8__IPU_DISPB_DAT_8,
174 MX35_PAD_LD9__IPU_DISPB_DAT_9,
175 MX35_PAD_LD10__IPU_DISPB_DAT_10,
176 MX35_PAD_LD11__IPU_DISPB_DAT_11,
177 MX35_PAD_LD12__IPU_DISPB_DAT_12,
178 MX35_PAD_LD13__IPU_DISPB_DAT_13,
179 MX35_PAD_LD14__IPU_DISPB_DAT_14,
180 MX35_PAD_LD15__IPU_DISPB_DAT_15,
181 MX35_PAD_LD16__IPU_DISPB_DAT_16,
182 MX35_PAD_LD17__IPU_DISPB_DAT_17,
183 MX35_PAD_D3_HSYNC__IPU_DISPB_D3_HSYNC,
184 MX35_PAD_D3_FPSHIFT__IPU_DISPB_D3_CLK,
185 MX35_PAD_D3_DRDY__IPU_DISPB_D3_DRDY,
186 MX35_PAD_CONTRAST__IPU_DISPB_CONTR,
187 MX35_PAD_D3_VSYNC__IPU_DISPB_D3_VSYNC,
188 MX35_PAD_D3_REV__IPU_DISPB_D3_REV,
189 MX35_PAD_D3_CLS__IPU_DISPB_D3_CLS,
190 /* gpio */
191 MX35_PAD_ATA_CS0__GPIO2_6,
192 /* USB host */
193 MX35_PAD_I2C2_CLK__USB_TOP_USBH2_PWR,
194 MX35_PAD_I2C2_DAT__USB_TOP_USBH2_OC,
195 /* SSI */
196 MX35_PAD_STXFS4__AUDMUX_AUD4_TXFS,
197 MX35_PAD_STXD4__AUDMUX_AUD4_TXD,
198 MX35_PAD_SRXD4__AUDMUX_AUD4_RXD,
199 MX35_PAD_SCK4__AUDMUX_AUD4_TXC,
200 /* CAN2 */
201 MX35_PAD_TX5_RX0__CAN2_TXCAN,
202 MX35_PAD_TX4_RX1__CAN2_RXCAN,
203 /* esdhc */
204 MX35_PAD_SD1_CMD__ESDHC1_CMD,
205 MX35_PAD_SD1_CLK__ESDHC1_CLK,
206 MX35_PAD_SD1_DATA0__ESDHC1_DAT0,
207 MX35_PAD_SD1_DATA1__ESDHC1_DAT1,
208 MX35_PAD_SD1_DATA2__ESDHC1_DAT2,
209 MX35_PAD_SD1_DATA3__ESDHC1_DAT3,
210 MX35_PAD_ATA_DATA10__GPIO2_23, /* WriteProtect */
211 MX35_PAD_ATA_DATA11__GPIO2_24, /* CardDetect */
212};
213
214#define AC97_GPIO_TXFS IMX_GPIO_NR(2, 31)
215#define AC97_GPIO_TXD IMX_GPIO_NR(2, 28)
216#define AC97_GPIO_RESET IMX_GPIO_NR(2, 0)
217#define SD1_GPIO_WP IMX_GPIO_NR(2, 23)
218#define SD1_GPIO_CD IMX_GPIO_NR(2, 24)
219
220static void pcm043_ac97_warm_reset(struct snd_ac97 *ac97)
221{
222 iomux_v3_cfg_t txfs_gpio = MX35_PAD_STXFS4__GPIO2_31;
223 iomux_v3_cfg_t txfs = MX35_PAD_STXFS4__AUDMUX_AUD4_TXFS;
224 int ret;
225
226 ret = gpio_request(AC97_GPIO_TXFS, "SSI");
227 if (ret) {
228 printk("failed to get GPIO_TXFS: %d\n", ret);
229 return;
230 }
231
232 mxc_iomux_v3_setup_pad(txfs_gpio);
233
234 /* warm reset */
235 gpio_direction_output(AC97_GPIO_TXFS, 1);
236 udelay(2);
237 gpio_set_value(AC97_GPIO_TXFS, 0);
238
239 gpio_free(AC97_GPIO_TXFS);
240 mxc_iomux_v3_setup_pad(txfs);
241}
242
243static void pcm043_ac97_cold_reset(struct snd_ac97 *ac97)
244{
245 iomux_v3_cfg_t txfs_gpio = MX35_PAD_STXFS4__GPIO2_31;
246 iomux_v3_cfg_t txfs = MX35_PAD_STXFS4__AUDMUX_AUD4_TXFS;
247 iomux_v3_cfg_t txd_gpio = MX35_PAD_STXD4__GPIO2_28;
248 iomux_v3_cfg_t txd = MX35_PAD_STXD4__AUDMUX_AUD4_TXD;
249 iomux_v3_cfg_t reset_gpio = MX35_PAD_SD2_CMD__GPIO2_0;
250 int ret;
251
252 ret = gpio_request(AC97_GPIO_TXFS, "SSI");
253 if (ret)
254 goto err1;
255
256 ret = gpio_request(AC97_GPIO_TXD, "SSI");
257 if (ret)
258 goto err2;
259
260 ret = gpio_request(AC97_GPIO_RESET, "SSI");
261 if (ret)
262 goto err3;
263
264 mxc_iomux_v3_setup_pad(txfs_gpio);
265 mxc_iomux_v3_setup_pad(txd_gpio);
266 mxc_iomux_v3_setup_pad(reset_gpio);
267
268 gpio_direction_output(AC97_GPIO_TXFS, 0);
269 gpio_direction_output(AC97_GPIO_TXD, 0);
270
271 /* cold reset */
272 gpio_direction_output(AC97_GPIO_RESET, 0);
273 udelay(10);
274 gpio_direction_output(AC97_GPIO_RESET, 1);
275
276 mxc_iomux_v3_setup_pad(txd);
277 mxc_iomux_v3_setup_pad(txfs);
278
279 gpio_free(AC97_GPIO_RESET);
280err3:
281 gpio_free(AC97_GPIO_TXD);
282err2:
283 gpio_free(AC97_GPIO_TXFS);
284err1:
285 if (ret)
286 printk("%s failed with %d\n", __func__, ret);
287 mdelay(1);
288}
289
290static const struct imx_ssi_platform_data pcm043_ssi_pdata __initconst = {
291 .ac97_reset = pcm043_ac97_cold_reset,
292 .ac97_warm_reset = pcm043_ac97_warm_reset,
293 .flags = IMX_SSI_USE_AC97,
294};
295
296static const struct mxc_nand_platform_data
297pcm037_nand_board_info __initconst = {
298 .width = 1,
299 .hw_ecc = 1,
300};
301
302static int pcm043_otg_init(struct platform_device *pdev)
303{
304 return mx35_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
305}
306
307static struct mxc_usbh_platform_data otg_pdata __initdata = {
308 .init = pcm043_otg_init,
309 .portsc = MXC_EHCI_MODE_UTMI,
310};
311
312static int pcm043_usbh1_init(struct platform_device *pdev)
313{
314 return mx35_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_SINGLE_UNI |
315 MXC_EHCI_INTERNAL_PHY | MXC_EHCI_IPPUE_DOWN);
316}
317
318static const struct mxc_usbh_platform_data usbh1_pdata __initconst = {
319 .init = pcm043_usbh1_init,
320 .portsc = MXC_EHCI_MODE_SERIAL,
321};
322
323static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
324 .operating_mode = FSL_USB2_DR_DEVICE,
325 .phy_mode = FSL_USB2_PHY_UTMI,
326};
327
328static bool otg_mode_host __initdata;
329
330static int __init pcm043_otg_mode(char *options)
331{
332 if (!strcmp(options, "host"))
333 otg_mode_host = true;
334 else if (!strcmp(options, "device"))
335 otg_mode_host = false;
336 else
337 pr_info("otg_mode neither \"host\" nor \"device\". "
338 "Defaulting to device\n");
339 return 1;
340}
341__setup("otg_mode=", pcm043_otg_mode);
342
343static struct esdhc_platform_data sd1_pdata = {
344 .wp_gpio = SD1_GPIO_WP,
345 .cd_gpio = SD1_GPIO_CD,
346 .wp_type = ESDHC_WP_GPIO,
347 .cd_type = ESDHC_CD_GPIO,
348};
349
350/*
351 * Board specific initialization.
352 */
353static void __init pcm043_init(void)
354{
355 imx35_soc_init();
356
357 mxc_iomux_v3_setup_multiple_pads(pcm043_pads, ARRAY_SIZE(pcm043_pads));
358
359 imx35_add_fec(NULL);
360 platform_add_devices(devices, ARRAY_SIZE(devices));
361 imx35_add_imx2_wdt();
362
363 imx35_add_imx_uart0(&uart_pdata);
364 imx35_add_mxc_nand(&pcm037_nand_board_info);
365 imx35_add_imx_ssi(0, &pcm043_ssi_pdata);
366
367 imx35_add_imx_uart1(&uart_pdata);
368
369 i2c_register_board_info(0, pcm043_i2c_devices,
370 ARRAY_SIZE(pcm043_i2c_devices));
371
372 imx35_add_imx_i2c0(&pcm043_i2c0_data);
373
374 imx35_add_ipu_core();
375 imx35_add_mx3_sdc_fb(&mx3fb_pdata);
376
377 if (otg_mode_host) {
378 otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
379 ULPI_OTG_DRVVBUS_EXT);
380 if (otg_pdata.otg)
381 imx35_add_mxc_ehci_otg(&otg_pdata);
382 }
383 imx35_add_mxc_ehci_hs(&usbh1_pdata);
384
385 if (!otg_mode_host)
386 imx35_add_fsl_usb2_udc(&otg_device_pdata);
387
388 imx35_add_flexcan1();
389 imx35_add_sdhci_esdhc_imx(0, &sd1_pdata);
390}
391
392static void __init pcm043_timer_init(void)
393{
394 mx35_clocks_init();
395}
396
397MACHINE_START(PCM043, "Phytec Phycore pcm043")
398 /* Maintainer: Pengutronix */
399 .atag_offset = 0x100,
400 .map_io = mx35_map_io,
401 .init_early = imx35_init_early,
402 .init_irq = mx35_init_irq,
403 .handle_irq = imx35_handle_irq,
404 .init_time = pcm043_timer_init,
405 .init_machine = pcm043_init,
406 .restart = mxc_restart,
407MACHINE_END