ARM: imx: dynamically register imx-uart devices (imx25)
[deliverable/linux.git] / arch / arm / mach-imx / mach-mx27ads.c
CommitLineData
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1/*
2 * Copyright (C) 2000 Deep Blue Solutions Ltd
3 * Copyright (C) 2002 Shane Nay (shane@minirl.com)
4 * Copyright 2006-2007 Freescale Semiconductor, Inc. All Rights Reserved.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
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15 */
16
17#include <linux/platform_device.h>
18#include <linux/mtd/mtd.h>
19#include <linux/mtd/map.h>
20#include <linux/mtd/partitions.h>
21#include <linux/mtd/physmap.h>
c981214a 22#include <linux/i2c.h>
60c24dc7 23#include <linux/irq.h>
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24#include <mach/common.h>
25#include <mach/hardware.h>
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26#include <asm/mach-types.h>
27#include <asm/mach/arch.h>
28#include <asm/mach/time.h>
29#include <asm/mach/map.h>
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30#include <mach/gpio.h>
31#include <mach/imx-uart.h>
e835d88e 32#include <mach/iomux-mx27.h>
8d4fd258 33#include <mach/mxc_nand.h>
11cda13d 34#include <mach/imxfb.h>
60c24dc7 35#include <mach/mmc.h>
80eedae6 36
0e7a29a8 37#include "devices-imx27.h"
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38#include "devices.h"
39
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40/*
41 * Base address of PBC controller, CS4
42 */
43#define PBC_BASE_ADDRESS 0xf4300000
44#define PBC_REG_ADDR(offset) (void __force __iomem *) \
45 (PBC_BASE_ADDRESS + (offset))
46
47/* When the PBC address connection is fixed in h/w, defined as 1 */
48#define PBC_ADDR_SH 0
49
50/* Offsets for the PBC Controller register */
51/*
52 * PBC Board version register offset
53 */
54#define PBC_VERSION_REG PBC_REG_ADDR(0x00000 >> PBC_ADDR_SH)
55/*
56 * PBC Board control register 1 set address.
57 */
58#define PBC_BCTRL1_SET_REG PBC_REG_ADDR(0x00008 >> PBC_ADDR_SH)
59/*
60 * PBC Board control register 1 clear address.
61 */
62#define PBC_BCTRL1_CLEAR_REG PBC_REG_ADDR(0x0000C >> PBC_ADDR_SH)
63
64/* PBC Board Control Register 1 bit definitions */
65#define PBC_BCTRL1_LCDON 0x0800 /* Enable the LCD */
66
67/* to determine the correct external crystal reference */
68#define CKIH_27MHZ_BIT_SET (1 << 3)
69
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70static unsigned int mx27ads_pins[] = {
71 /* UART0 */
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72 PE12_PF_UART1_TXD,
73 PE13_PF_UART1_RXD,
74 PE14_PF_UART1_CTS,
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75 PE15_PF_UART1_RTS,
76 /* UART1 */
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77 PE3_PF_UART2_CTS,
78 PE4_PF_UART2_RTS,
79 PE6_PF_UART2_TXD,
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80 PE7_PF_UART2_RXD,
81 /* UART2 */
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82 PE8_PF_UART3_TXD,
83 PE9_PF_UART3_RXD,
84 PE10_PF_UART3_CTS,
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85 PE11_PF_UART3_RTS,
86 /* UART3 */
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87 PB26_AF_UART4_RTS,
88 PB28_AF_UART4_TXD,
89 PB29_AF_UART4_CTS,
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90 PB31_AF_UART4_RXD,
91 /* UART4 */
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92 PB18_AF_UART5_TXD,
93 PB19_AF_UART5_RXD,
94 PB20_AF_UART5_CTS,
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95 PB21_AF_UART5_RTS,
96 /* UART5 */
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97 PB10_AF_UART6_TXD,
98 PB12_AF_UART6_CTS,
99 PB11_AF_UART6_RXD,
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100 PB13_AF_UART6_RTS,
101 /* FEC */
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102 PD0_AIN_FEC_TXD0,
103 PD1_AIN_FEC_TXD1,
104 PD2_AIN_FEC_TXD2,
105 PD3_AIN_FEC_TXD3,
106 PD4_AOUT_FEC_RX_ER,
107 PD5_AOUT_FEC_RXD1,
108 PD6_AOUT_FEC_RXD2,
109 PD7_AOUT_FEC_RXD3,
110 PD8_AF_FEC_MDIO,
111 PD9_AIN_FEC_MDC,
112 PD10_AOUT_FEC_CRS,
113 PD11_AOUT_FEC_TX_CLK,
114 PD12_AOUT_FEC_RXD0,
115 PD13_AOUT_FEC_RX_DV,
ccfe30a7 116 PD14_AOUT_FEC_RX_CLK,
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117 PD15_AOUT_FEC_COL,
118 PD16_AIN_FEC_TX_ER,
c1a6f123 119 PF23_AIN_FEC_TX_EN,
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120 /* I2C2 */
121 PC5_PF_I2C2_SDA,
122 PC6_PF_I2C2_SCL,
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123 /* FB */
124 PA5_PF_LSCLK,
125 PA6_PF_LD0,
126 PA7_PF_LD1,
127 PA8_PF_LD2,
128 PA9_PF_LD3,
129 PA10_PF_LD4,
130 PA11_PF_LD5,
131 PA12_PF_LD6,
132 PA13_PF_LD7,
133 PA14_PF_LD8,
134 PA15_PF_LD9,
135 PA16_PF_LD10,
136 PA17_PF_LD11,
137 PA18_PF_LD12,
138 PA19_PF_LD13,
139 PA20_PF_LD14,
140 PA21_PF_LD15,
141 PA22_PF_LD16,
142 PA23_PF_LD17,
143 PA24_PF_REV,
144 PA25_PF_CLS,
145 PA26_PF_PS,
146 PA27_PF_SPL_SPR,
147 PA28_PF_HSYNC,
148 PA29_PF_VSYNC,
149 PA30_PF_CONTRAST,
150 PA31_PF_OE_ACD,
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151 /* OWIRE */
152 PE16_AF_OWIRE,
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153 /* SDHC1*/
154 PE18_PF_SD1_D0,
155 PE19_PF_SD1_D1,
156 PE20_PF_SD1_D2,
157 PE21_PF_SD1_D3,
158 PE22_PF_SD1_CMD,
159 PE23_PF_SD1_CLK,
160 /* SDHC2*/
161 PB4_PF_SD2_D0,
162 PB5_PF_SD2_D1,
163 PB6_PF_SD2_D2,
164 PB7_PF_SD2_D3,
165 PB8_PF_SD2_CMD,
166 PB9_PF_SD2_CLK,
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167};
168
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169static const struct mxc_nand_platform_data
170mx27ads_nand_board_info __initconst = {
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171 .width = 1,
172 .hw_ecc = 1,
173};
174
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175/* ADS's NOR flash */
176static struct physmap_flash_data mx27ads_flash_data = {
177 .width = 2,
178};
179
180static struct resource mx27ads_flash_resource = {
181 .start = 0xc0000000,
182 .end = 0xc0000000 + 0x02000000 - 1,
183 .flags = IORESOURCE_MEM,
184
185};
186
187static struct platform_device mx27ads_nor_mtd_device = {
188 .name = "physmap-flash",
189 .id = 0,
190 .dev = {
191 .platform_data = &mx27ads_flash_data,
192 },
193 .num_resources = 1,
194 .resource = &mx27ads_flash_resource,
195};
196
c6987159 197static const struct imxi2c_platform_data mx27ads_i2c1_data __initconst = {
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198 .bitrate = 100000,
199};
200
201static struct i2c_board_info mx27ads_i2c_devices[] = {
202};
203
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204void lcd_power(int on)
205{
206 if (on)
207 __raw_writew(PBC_BCTRL1_LCDON, PBC_BCTRL1_SET_REG);
208 else
209 __raw_writew(PBC_BCTRL1_LCDON, PBC_BCTRL1_CLEAR_REG);
210}
211
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212static struct imx_fb_videomode mx27ads_modes[] = {
213 {
214 .mode = {
215 .name = "Sharp-LQ035Q7",
216 .refresh = 60,
217 .xres = 240,
218 .yres = 320,
219 .pixclock = 188679, /* in ps (5.3MHz) */
220 .hsync_len = 1,
221 .left_margin = 9,
222 .right_margin = 16,
223 .vsync_len = 1,
224 .upper_margin = 7,
225 .lower_margin = 9,
226 },
227 .bpp = 16,
228 .pcr = 0xFB008BC0,
229 },
230};
11cda13d 231
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232static struct imx_fb_platform_data mx27ads_fb_data = {
233 .mode = mx27ads_modes,
234 .num_modes = ARRAY_SIZE(mx27ads_modes),
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235
236 /*
237 * - HSYNC active high
238 * - VSYNC active high
239 * - clk notenabled while idle
240 * - clock inverted
241 * - data not inverted
242 * - data enable low active
243 * - enable sharp mode
244 */
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245 .pwmr = 0x00A903FF,
246 .lscr1 = 0x00120300,
247 .dmacr = 0x00020010,
248
249 .lcd_power = lcd_power,
250};
251
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252static int mx27ads_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
253 void *data)
254{
255 return request_irq(IRQ_GPIOE(21), detect_irq, IRQF_TRIGGER_RISING,
256 "sdhc1-card-detect", data);
257}
258
259static int mx27ads_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
260 void *data)
261{
262 return request_irq(IRQ_GPIOB(7), detect_irq, IRQF_TRIGGER_RISING,
263 "sdhc2-card-detect", data);
264}
265
266static void mx27ads_sdhc1_exit(struct device *dev, void *data)
267{
268 free_irq(IRQ_GPIOE(21), data);
269}
270
271static void mx27ads_sdhc2_exit(struct device *dev, void *data)
272{
273 free_irq(IRQ_GPIOB(7), data);
274}
275
276static struct imxmmc_platform_data sdhc1_pdata = {
277 .init = mx27ads_sdhc1_init,
278 .exit = mx27ads_sdhc1_exit,
279};
280
281static struct imxmmc_platform_data sdhc2_pdata = {
282 .init = mx27ads_sdhc2_init,
283 .exit = mx27ads_sdhc2_exit,
284};
285
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286static struct platform_device *platform_devices[] __initdata = {
287 &mx27ads_nor_mtd_device,
288 &mxc_fec_device,
9366d8f6 289 &mxc_w1_master_device,
c1a6f123 290};
80eedae6 291
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292static struct imxuart_platform_data uart_pdata[] = {
293 {
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294 .flags = IMXUART_HAVE_RTSCTS,
295 }, {
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296 .flags = IMXUART_HAVE_RTSCTS,
297 }, {
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298 .flags = IMXUART_HAVE_RTSCTS,
299 }, {
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300 .flags = IMXUART_HAVE_RTSCTS,
301 }, {
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302 .flags = IMXUART_HAVE_RTSCTS,
303 }, {
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304 .flags = IMXUART_HAVE_RTSCTS,
305 },
306};
307
308static void __init mx27ads_board_init(void)
309{
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310 mxc_gpio_setup_multiple_pins(mx27ads_pins, ARRAY_SIZE(mx27ads_pins),
311 "mx27ads");
80eedae6 312
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313 mxc_register_device(&imx2x_uart_device0, &uart_pdata[0]);
314 mxc_register_device(&imx2x_uart_device1, &uart_pdata[1]);
315 mxc_register_device(&imx2x_uart_device2, &uart_pdata[2]);
316 mxc_register_device(&imx2x_uart_device3, &uart_pdata[3]);
317 mxc_register_device(&imx2x_uart_device4, &uart_pdata[4]);
318 mxc_register_device(&imx2x_uart_device5, &uart_pdata[5]);
0e7a29a8 319 imx27_add_mxc_nand(&mx27ads_nand_board_info);
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320
321 /* only the i2c master 1 is used on this CPU card */
322 i2c_register_board_info(1, mx27ads_i2c_devices,
323 ARRAY_SIZE(mx27ads_i2c_devices));
c6987159 324 imx27_add_i2c_imx1(&mx27ads_i2c1_data);
11cda13d 325 mxc_register_device(&mxc_fb_device, &mx27ads_fb_data);
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326 mxc_register_device(&mxc_sdhc_device0, &sdhc1_pdata);
327 mxc_register_device(&mxc_sdhc_device1, &sdhc2_pdata);
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328
329 platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
330}
331
332static void __init mx27ads_timer_init(void)
333{
334 unsigned long fref = 26000000;
335
336 if ((__raw_readw(PBC_VERSION_REG) & CKIH_27MHZ_BIT_SET) == 0)
337 fref = 27000000;
338
30c730f8 339 mx27_clocks_init(fref);
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340}
341
058b7a6f 342static struct sys_timer mx27ads_timer = {
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343 .init = mx27ads_timer_init,
344};
345
346static struct map_desc mx27ads_io_desc[] __initdata = {
347 {
348 .virtual = PBC_BASE_ADDRESS,
3f35d1f5 349 .pfn = __phys_to_pfn(MX27_CS4_BASE_ADDR),
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350 .length = SZ_1M,
351 .type = MT_DEVICE,
352 },
353};
354
058b7a6f 355static void __init mx27ads_map_io(void)
80eedae6 356{
cd4a05f9 357 mx27_map_io();
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358 iotable_init(mx27ads_io_desc, ARRAY_SIZE(mx27ads_io_desc));
359}
360
361MACHINE_START(MX27ADS, "Freescale i.MX27ADS")
362 /* maintainer: Freescale Semiconductor, Inc. */
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363 .phys_io = MX27_AIPI_BASE_ADDR,
364 .io_pg_offst = ((MX27_AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
34101237 365 .boot_params = MX27_PHYS_OFFSET + 0x100,
80eedae6 366 .map_io = mx27ads_map_io,
c5aa0ad0 367 .init_irq = mx27_init_irq,
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368 .init_machine = mx27ads_board_init,
369 .timer = &mx27ads_timer,
370MACHINE_END
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