ARM: mach-imx: convert boot_params to atag_offset
[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>
a09e64fb 30#include <mach/gpio.h>
e835d88e 31#include <mach/iomux-mx27.h>
80eedae6 32
0e7a29a8 33#include "devices-imx27.h"
7e90534a 34
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35/*
36 * Base address of PBC controller, CS4
37 */
38#define PBC_BASE_ADDRESS 0xf4300000
39#define PBC_REG_ADDR(offset) (void __force __iomem *) \
40 (PBC_BASE_ADDRESS + (offset))
41
42/* When the PBC address connection is fixed in h/w, defined as 1 */
43#define PBC_ADDR_SH 0
44
45/* Offsets for the PBC Controller register */
46/*
47 * PBC Board version register offset
48 */
49#define PBC_VERSION_REG PBC_REG_ADDR(0x00000 >> PBC_ADDR_SH)
50/*
51 * PBC Board control register 1 set address.
52 */
53#define PBC_BCTRL1_SET_REG PBC_REG_ADDR(0x00008 >> PBC_ADDR_SH)
54/*
55 * PBC Board control register 1 clear address.
56 */
57#define PBC_BCTRL1_CLEAR_REG PBC_REG_ADDR(0x0000C >> PBC_ADDR_SH)
58
59/* PBC Board Control Register 1 bit definitions */
60#define PBC_BCTRL1_LCDON 0x0800 /* Enable the LCD */
61
62/* to determine the correct external crystal reference */
63#define CKIH_27MHZ_BIT_SET (1 << 3)
64
6c80ee51 65static const int mx27ads_pins[] __initconst = {
c1a6f123 66 /* UART0 */
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67 PE12_PF_UART1_TXD,
68 PE13_PF_UART1_RXD,
69 PE14_PF_UART1_CTS,
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70 PE15_PF_UART1_RTS,
71 /* UART1 */
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72 PE3_PF_UART2_CTS,
73 PE4_PF_UART2_RTS,
74 PE6_PF_UART2_TXD,
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75 PE7_PF_UART2_RXD,
76 /* UART2 */
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77 PE8_PF_UART3_TXD,
78 PE9_PF_UART3_RXD,
79 PE10_PF_UART3_CTS,
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80 PE11_PF_UART3_RTS,
81 /* UART3 */
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82 PB26_AF_UART4_RTS,
83 PB28_AF_UART4_TXD,
84 PB29_AF_UART4_CTS,
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85 PB31_AF_UART4_RXD,
86 /* UART4 */
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87 PB18_AF_UART5_TXD,
88 PB19_AF_UART5_RXD,
89 PB20_AF_UART5_CTS,
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90 PB21_AF_UART5_RTS,
91 /* UART5 */
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92 PB10_AF_UART6_TXD,
93 PB12_AF_UART6_CTS,
94 PB11_AF_UART6_RXD,
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95 PB13_AF_UART6_RTS,
96 /* FEC */
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97 PD0_AIN_FEC_TXD0,
98 PD1_AIN_FEC_TXD1,
99 PD2_AIN_FEC_TXD2,
100 PD3_AIN_FEC_TXD3,
101 PD4_AOUT_FEC_RX_ER,
102 PD5_AOUT_FEC_RXD1,
103 PD6_AOUT_FEC_RXD2,
104 PD7_AOUT_FEC_RXD3,
105 PD8_AF_FEC_MDIO,
106 PD9_AIN_FEC_MDC,
107 PD10_AOUT_FEC_CRS,
108 PD11_AOUT_FEC_TX_CLK,
109 PD12_AOUT_FEC_RXD0,
110 PD13_AOUT_FEC_RX_DV,
ccfe30a7 111 PD14_AOUT_FEC_RX_CLK,
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112 PD15_AOUT_FEC_COL,
113 PD16_AIN_FEC_TX_ER,
c1a6f123 114 PF23_AIN_FEC_TX_EN,
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115 /* I2C2 */
116 PC5_PF_I2C2_SDA,
117 PC6_PF_I2C2_SCL,
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118 /* FB */
119 PA5_PF_LSCLK,
120 PA6_PF_LD0,
121 PA7_PF_LD1,
122 PA8_PF_LD2,
123 PA9_PF_LD3,
124 PA10_PF_LD4,
125 PA11_PF_LD5,
126 PA12_PF_LD6,
127 PA13_PF_LD7,
128 PA14_PF_LD8,
129 PA15_PF_LD9,
130 PA16_PF_LD10,
131 PA17_PF_LD11,
132 PA18_PF_LD12,
133 PA19_PF_LD13,
134 PA20_PF_LD14,
135 PA21_PF_LD15,
136 PA22_PF_LD16,
137 PA23_PF_LD17,
138 PA24_PF_REV,
139 PA25_PF_CLS,
140 PA26_PF_PS,
141 PA27_PF_SPL_SPR,
142 PA28_PF_HSYNC,
143 PA29_PF_VSYNC,
144 PA30_PF_CONTRAST,
145 PA31_PF_OE_ACD,
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146 /* OWIRE */
147 PE16_AF_OWIRE,
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148 /* SDHC1*/
149 PE18_PF_SD1_D0,
150 PE19_PF_SD1_D1,
151 PE20_PF_SD1_D2,
152 PE21_PF_SD1_D3,
153 PE22_PF_SD1_CMD,
154 PE23_PF_SD1_CLK,
155 /* SDHC2*/
156 PB4_PF_SD2_D0,
157 PB5_PF_SD2_D1,
158 PB6_PF_SD2_D2,
159 PB7_PF_SD2_D3,
160 PB8_PF_SD2_CMD,
161 PB9_PF_SD2_CLK,
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162};
163
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164static const struct mxc_nand_platform_data
165mx27ads_nand_board_info __initconst = {
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166 .width = 1,
167 .hw_ecc = 1,
168};
169
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170/* ADS's NOR flash */
171static struct physmap_flash_data mx27ads_flash_data = {
172 .width = 2,
173};
174
175static struct resource mx27ads_flash_resource = {
176 .start = 0xc0000000,
177 .end = 0xc0000000 + 0x02000000 - 1,
178 .flags = IORESOURCE_MEM,
179
180};
181
182static struct platform_device mx27ads_nor_mtd_device = {
183 .name = "physmap-flash",
184 .id = 0,
185 .dev = {
186 .platform_data = &mx27ads_flash_data,
187 },
188 .num_resources = 1,
189 .resource = &mx27ads_flash_resource,
190};
191
c6987159 192static const struct imxi2c_platform_data mx27ads_i2c1_data __initconst = {
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193 .bitrate = 100000,
194};
195
196static struct i2c_board_info mx27ads_i2c_devices[] = {
197};
198
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199void lcd_power(int on)
200{
201 if (on)
202 __raw_writew(PBC_BCTRL1_LCDON, PBC_BCTRL1_SET_REG);
203 else
204 __raw_writew(PBC_BCTRL1_LCDON, PBC_BCTRL1_CLEAR_REG);
205}
206
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207static struct imx_fb_videomode mx27ads_modes[] = {
208 {
209 .mode = {
210 .name = "Sharp-LQ035Q7",
211 .refresh = 60,
212 .xres = 240,
213 .yres = 320,
214 .pixclock = 188679, /* in ps (5.3MHz) */
215 .hsync_len = 1,
216 .left_margin = 9,
217 .right_margin = 16,
218 .vsync_len = 1,
219 .upper_margin = 7,
220 .lower_margin = 9,
221 },
222 .bpp = 16,
223 .pcr = 0xFB008BC0,
224 },
225};
11cda13d 226
ad851bff 227static const struct imx_fb_platform_data mx27ads_fb_data __initconst = {
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228 .mode = mx27ads_modes,
229 .num_modes = ARRAY_SIZE(mx27ads_modes),
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230
231 /*
232 * - HSYNC active high
233 * - VSYNC active high
234 * - clk notenabled while idle
235 * - clock inverted
236 * - data not inverted
237 * - data enable low active
238 * - enable sharp mode
239 */
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240 .pwmr = 0x00A903FF,
241 .lscr1 = 0x00120300,
242 .dmacr = 0x00020010,
243
244 .lcd_power = lcd_power,
245};
246
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247static int mx27ads_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
248 void *data)
249{
250 return request_irq(IRQ_GPIOE(21), detect_irq, IRQF_TRIGGER_RISING,
251 "sdhc1-card-detect", data);
252}
253
254static int mx27ads_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
255 void *data)
256{
257 return request_irq(IRQ_GPIOB(7), detect_irq, IRQF_TRIGGER_RISING,
258 "sdhc2-card-detect", data);
259}
260
261static void mx27ads_sdhc1_exit(struct device *dev, void *data)
262{
263 free_irq(IRQ_GPIOE(21), data);
264}
265
266static void mx27ads_sdhc2_exit(struct device *dev, void *data)
267{
268 free_irq(IRQ_GPIOB(7), data);
269}
270
9d3d945a 271static const struct imxmmc_platform_data sdhc1_pdata __initconst = {
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272 .init = mx27ads_sdhc1_init,
273 .exit = mx27ads_sdhc1_exit,
274};
275
9d3d945a 276static const struct imxmmc_platform_data sdhc2_pdata __initconst = {
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277 .init = mx27ads_sdhc2_init,
278 .exit = mx27ads_sdhc2_exit,
279};
280
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281static struct platform_device *platform_devices[] __initdata = {
282 &mx27ads_nor_mtd_device,
c1a6f123 283};
80eedae6 284
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285static const struct imxuart_platform_data uart_pdata __initconst = {
286 .flags = IMXUART_HAVE_RTSCTS,
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287};
288
289static void __init mx27ads_board_init(void)
290{
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291 imx27_soc_init();
292
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293 mxc_gpio_setup_multiple_pins(mx27ads_pins, ARRAY_SIZE(mx27ads_pins),
294 "mx27ads");
80eedae6 295
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296 imx27_add_imx_uart0(&uart_pdata);
297 imx27_add_imx_uart1(&uart_pdata);
298 imx27_add_imx_uart2(&uart_pdata);
299 imx27_add_imx_uart3(&uart_pdata);
300 imx27_add_imx_uart4(&uart_pdata);
301 imx27_add_imx_uart5(&uart_pdata);
0e7a29a8 302 imx27_add_mxc_nand(&mx27ads_nand_board_info);
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303
304 /* only the i2c master 1 is used on this CPU card */
305 i2c_register_board_info(1, mx27ads_i2c_devices,
306 ARRAY_SIZE(mx27ads_i2c_devices));
77a406da 307 imx27_add_imx_i2c(1, &mx27ads_i2c1_data);
ad851bff 308 imx27_add_imx_fb(&mx27ads_fb_data);
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309 imx27_add_mxc_mmc(0, &sdhc1_pdata);
310 imx27_add_mxc_mmc(1, &sdhc2_pdata);
80eedae6 311
6bd96f3c 312 imx27_add_fec(NULL);
80eedae6 313 platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
ae71a562 314 imx27_add_mxc_w1(NULL);
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315}
316
317static void __init mx27ads_timer_init(void)
318{
319 unsigned long fref = 26000000;
320
321 if ((__raw_readw(PBC_VERSION_REG) & CKIH_27MHZ_BIT_SET) == 0)
322 fref = 27000000;
323
30c730f8 324 mx27_clocks_init(fref);
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325}
326
058b7a6f 327static struct sys_timer mx27ads_timer = {
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328 .init = mx27ads_timer_init,
329};
330
331static struct map_desc mx27ads_io_desc[] __initdata = {
332 {
333 .virtual = PBC_BASE_ADDRESS,
3f35d1f5 334 .pfn = __phys_to_pfn(MX27_CS4_BASE_ADDR),
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335 .length = SZ_1M,
336 .type = MT_DEVICE,
337 },
338};
339
058b7a6f 340static void __init mx27ads_map_io(void)
80eedae6 341{
cd4a05f9 342 mx27_map_io();
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343 iotable_init(mx27ads_io_desc, ARRAY_SIZE(mx27ads_io_desc));
344}
345
346MACHINE_START(MX27ADS, "Freescale i.MX27ADS")
347 /* maintainer: Freescale Semiconductor, Inc. */
dc8f1907 348 .atag_offset = 0x100,
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349 .map_io = mx27ads_map_io,
350 .init_early = imx27_init_early,
351 .init_irq = mx27_init_irq,
352 .timer = &mx27ads_timer,
353 .init_machine = mx27ads_board_init,
80eedae6 354MACHINE_END
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