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authorJiri Kosina <jkosina@suse.cz>2010-08-04 09:14:38 -0400
committerJiri Kosina <jkosina@suse.cz>2010-08-04 09:14:38 -0400
commitd790d4d583aeaed9fc6f8a9f4d9f8ce6b1c15c7f (patch)
tree854ab394486288d40fa8179cbfaf66e8bdc44b0f /arch/arm/mach-imx/mach-mx27ads.c
parent73b2c7165b76b20eb1290e7efebc33cfd21db1ca (diff)
parent3a09b1be53d23df780a0cd0e4087a05e2ca4a00c (diff)
Merge branch 'master' into for-next
Diffstat (limited to 'arch/arm/mach-imx/mach-mx27ads.c')
-rw-r--r--arch/arm/mach-imx/mach-mx27ads.c357
1 files changed, 357 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/mach-mx27ads.c b/arch/arm/mach-imx/mach-mx27ads.c
new file mode 100644
index 000000000000..9c77da98a10e
--- /dev/null
+++ b/arch/arm/mach-imx/mach-mx27ads.c
@@ -0,0 +1,357 @@
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.
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>
22#include <linux/i2c.h>
23#include <linux/irq.h>
24#include <mach/common.h>
25#include <mach/hardware.h>
26#include <asm/mach-types.h>
27#include <asm/mach/arch.h>
28#include <asm/mach/time.h>
29#include <asm/mach/map.h>
30#include <mach/gpio.h>
31#include <mach/iomux-mx27.h>
32#include <mach/mxc_nand.h>
33#include <mach/imxfb.h>
34#include <mach/mmc.h>
35
36#include "devices-imx27.h"
37#include "devices.h"
38
39/*
40 * Base address of PBC controller, CS4
41 */
42#define PBC_BASE_ADDRESS 0xf4300000
43#define PBC_REG_ADDR(offset) (void __force __iomem *) \
44 (PBC_BASE_ADDRESS + (offset))
45
46/* When the PBC address connection is fixed in h/w, defined as 1 */
47#define PBC_ADDR_SH 0
48
49/* Offsets for the PBC Controller register */
50/*
51 * PBC Board version register offset
52 */
53#define PBC_VERSION_REG PBC_REG_ADDR(0x00000 >> PBC_ADDR_SH)
54/*
55 * PBC Board control register 1 set address.
56 */
57#define PBC_BCTRL1_SET_REG PBC_REG_ADDR(0x00008 >> PBC_ADDR_SH)
58/*
59 * PBC Board control register 1 clear address.
60 */
61#define PBC_BCTRL1_CLEAR_REG PBC_REG_ADDR(0x0000C >> PBC_ADDR_SH)
62
63/* PBC Board Control Register 1 bit definitions */
64#define PBC_BCTRL1_LCDON 0x0800 /* Enable the LCD */
65
66/* to determine the correct external crystal reference */
67#define CKIH_27MHZ_BIT_SET (1 << 3)
68
69static unsigned int mx27ads_pins[] = {
70 /* UART0 */
71 PE12_PF_UART1_TXD,
72 PE13_PF_UART1_RXD,
73 PE14_PF_UART1_CTS,
74 PE15_PF_UART1_RTS,
75 /* UART1 */
76 PE3_PF_UART2_CTS,
77 PE4_PF_UART2_RTS,
78 PE6_PF_UART2_TXD,
79 PE7_PF_UART2_RXD,
80 /* UART2 */
81 PE8_PF_UART3_TXD,
82 PE9_PF_UART3_RXD,
83 PE10_PF_UART3_CTS,
84 PE11_PF_UART3_RTS,
85 /* UART3 */
86 PB26_AF_UART4_RTS,
87 PB28_AF_UART4_TXD,
88 PB29_AF_UART4_CTS,
89 PB31_AF_UART4_RXD,
90 /* UART4 */
91 PB18_AF_UART5_TXD,
92 PB19_AF_UART5_RXD,
93 PB20_AF_UART5_CTS,
94 PB21_AF_UART5_RTS,
95 /* UART5 */
96 PB10_AF_UART6_TXD,
97 PB12_AF_UART6_CTS,
98 PB11_AF_UART6_RXD,
99 PB13_AF_UART6_RTS,
100 /* FEC */
101 PD0_AIN_FEC_TXD0,
102 PD1_AIN_FEC_TXD1,
103 PD2_AIN_FEC_TXD2,
104 PD3_AIN_FEC_TXD3,
105 PD4_AOUT_FEC_RX_ER,
106 PD5_AOUT_FEC_RXD1,
107 PD6_AOUT_FEC_RXD2,
108 PD7_AOUT_FEC_RXD3,
109 PD8_AF_FEC_MDIO,
110 PD9_AIN_FEC_MDC,
111 PD10_AOUT_FEC_CRS,
112 PD11_AOUT_FEC_TX_CLK,
113 PD12_AOUT_FEC_RXD0,
114 PD13_AOUT_FEC_RX_DV,
115 PD14_AOUT_FEC_RX_CLK,
116 PD15_AOUT_FEC_COL,
117 PD16_AIN_FEC_TX_ER,
118 PF23_AIN_FEC_TX_EN,
119 /* I2C2 */
120 PC5_PF_I2C2_SDA,
121 PC6_PF_I2C2_SCL,
122 /* FB */
123 PA5_PF_LSCLK,
124 PA6_PF_LD0,
125 PA7_PF_LD1,
126 PA8_PF_LD2,
127 PA9_PF_LD3,
128 PA10_PF_LD4,
129 PA11_PF_LD5,
130 PA12_PF_LD6,
131 PA13_PF_LD7,
132 PA14_PF_LD8,
133 PA15_PF_LD9,
134 PA16_PF_LD10,
135 PA17_PF_LD11,
136 PA18_PF_LD12,
137 PA19_PF_LD13,
138 PA20_PF_LD14,
139 PA21_PF_LD15,
140 PA22_PF_LD16,
141 PA23_PF_LD17,
142 PA24_PF_REV,
143 PA25_PF_CLS,
144 PA26_PF_PS,
145 PA27_PF_SPL_SPR,
146 PA28_PF_HSYNC,
147 PA29_PF_VSYNC,
148 PA30_PF_CONTRAST,
149 PA31_PF_OE_ACD,
150 /* OWIRE */
151 PE16_AF_OWIRE,
152 /* SDHC1*/
153 PE18_PF_SD1_D0,
154 PE19_PF_SD1_D1,
155 PE20_PF_SD1_D2,
156 PE21_PF_SD1_D3,
157 PE22_PF_SD1_CMD,
158 PE23_PF_SD1_CLK,
159 /* SDHC2*/
160 PB4_PF_SD2_D0,
161 PB5_PF_SD2_D1,
162 PB6_PF_SD2_D2,
163 PB7_PF_SD2_D3,
164 PB8_PF_SD2_CMD,
165 PB9_PF_SD2_CLK,
166};
167
168static const struct mxc_nand_platform_data
169mx27ads_nand_board_info __initconst = {
170 .width = 1,
171 .hw_ecc = 1,
172};
173
174/* ADS's NOR flash */
175static struct physmap_flash_data mx27ads_flash_data = {
176 .width = 2,
177};
178
179static struct resource mx27ads_flash_resource = {
180 .start = 0xc0000000,
181 .end = 0xc0000000 + 0x02000000 - 1,
182 .flags = IORESOURCE_MEM,
183
184};
185
186static struct platform_device mx27ads_nor_mtd_device = {
187 .name = "physmap-flash",
188 .id = 0,
189 .dev = {
190 .platform_data = &mx27ads_flash_data,
191 },
192 .num_resources = 1,
193 .resource = &mx27ads_flash_resource,
194};
195
196static const struct imxi2c_platform_data mx27ads_i2c1_data __initconst = {
197 .bitrate = 100000,
198};
199
200static struct i2c_board_info mx27ads_i2c_devices[] = {
201};
202
203void lcd_power(int on)
204{
205 if (on)
206 __raw_writew(PBC_BCTRL1_LCDON, PBC_BCTRL1_SET_REG);
207 else
208 __raw_writew(PBC_BCTRL1_LCDON, PBC_BCTRL1_CLEAR_REG);
209}
210
211static struct imx_fb_videomode mx27ads_modes[] = {
212 {
213 .mode = {
214 .name = "Sharp-LQ035Q7",
215 .refresh = 60,
216 .xres = 240,
217 .yres = 320,
218 .pixclock = 188679, /* in ps (5.3MHz) */
219 .hsync_len = 1,
220 .left_margin = 9,
221 .right_margin = 16,
222 .vsync_len = 1,
223 .upper_margin = 7,
224 .lower_margin = 9,
225 },
226 .bpp = 16,
227 .pcr = 0xFB008BC0,
228 },
229};
230
231static struct imx_fb_platform_data mx27ads_fb_data = {
232 .mode = mx27ads_modes,
233 .num_modes = ARRAY_SIZE(mx27ads_modes),
234
235 /*
236 * - HSYNC active high
237 * - VSYNC active high
238 * - clk notenabled while idle
239 * - clock inverted
240 * - data not inverted
241 * - data enable low active
242 * - enable sharp mode
243 */
244 .pwmr = 0x00A903FF,
245 .lscr1 = 0x00120300,
246 .dmacr = 0x00020010,
247
248 .lcd_power = lcd_power,
249};
250
251static int mx27ads_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
252 void *data)
253{
254 return request_irq(IRQ_GPIOE(21), detect_irq, IRQF_TRIGGER_RISING,
255 "sdhc1-card-detect", data);
256}
257
258static int mx27ads_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
259 void *data)
260{
261 return request_irq(IRQ_GPIOB(7), detect_irq, IRQF_TRIGGER_RISING,
262 "sdhc2-card-detect", data);
263}
264
265static void mx27ads_sdhc1_exit(struct device *dev, void *data)
266{
267 free_irq(IRQ_GPIOE(21), data);
268}
269
270static void mx27ads_sdhc2_exit(struct device *dev, void *data)
271{
272 free_irq(IRQ_GPIOB(7), data);
273}
274
275static struct imxmmc_platform_data sdhc1_pdata = {
276 .init = mx27ads_sdhc1_init,
277 .exit = mx27ads_sdhc1_exit,
278};
279
280static struct imxmmc_platform_data sdhc2_pdata = {
281 .init = mx27ads_sdhc2_init,
282 .exit = mx27ads_sdhc2_exit,
283};
284
285static struct platform_device *platform_devices[] __initdata = {
286 &mx27ads_nor_mtd_device,
287 &mxc_fec_device,
288 &mxc_w1_master_device,
289};
290
291static const struct imxuart_platform_data uart_pdata __initconst = {
292 .flags = IMXUART_HAVE_RTSCTS,
293};
294
295static void __init mx27ads_board_init(void)
296{
297 mxc_gpio_setup_multiple_pins(mx27ads_pins, ARRAY_SIZE(mx27ads_pins),
298 "mx27ads");
299
300 imx27_add_imx_uart0(&uart_pdata);
301 imx27_add_imx_uart1(&uart_pdata);
302 imx27_add_imx_uart2(&uart_pdata);
303 imx27_add_imx_uart3(&uart_pdata);
304 imx27_add_imx_uart4(&uart_pdata);
305 imx27_add_imx_uart5(&uart_pdata);
306 imx27_add_mxc_nand(&mx27ads_nand_board_info);
307
308 /* only the i2c master 1 is used on this CPU card */
309 i2c_register_board_info(1, mx27ads_i2c_devices,
310 ARRAY_SIZE(mx27ads_i2c_devices));
311 imx27_add_i2c_imx1(&mx27ads_i2c1_data);
312 mxc_register_device(&mxc_fb_device, &mx27ads_fb_data);
313 mxc_register_device(&mxc_sdhc_device0, &sdhc1_pdata);
314 mxc_register_device(&mxc_sdhc_device1, &sdhc2_pdata);
315
316 platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
317}
318
319static void __init mx27ads_timer_init(void)
320{
321 unsigned long fref = 26000000;
322
323 if ((__raw_readw(PBC_VERSION_REG) & CKIH_27MHZ_BIT_SET) == 0)
324 fref = 27000000;
325
326 mx27_clocks_init(fref);
327}
328
329static struct sys_timer mx27ads_timer = {
330 .init = mx27ads_timer_init,
331};
332
333static struct map_desc mx27ads_io_desc[] __initdata = {
334 {
335 .virtual = PBC_BASE_ADDRESS,
336 .pfn = __phys_to_pfn(MX27_CS4_BASE_ADDR),
337 .length = SZ_1M,
338 .type = MT_DEVICE,
339 },
340};
341
342static void __init mx27ads_map_io(void)
343{
344 mx27_map_io();
345 iotable_init(mx27ads_io_desc, ARRAY_SIZE(mx27ads_io_desc));
346}
347
348MACHINE_START(MX27ADS, "Freescale i.MX27ADS")
349 /* maintainer: Freescale Semiconductor, Inc. */
350 .phys_io = MX27_AIPI_BASE_ADDR,
351 .io_pg_offst = ((MX27_AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
352 .boot_params = MX27_PHYS_OFFSET + 0x100,
353 .map_io = mx27ads_map_io,
354 .init_irq = mx27_init_irq,
355 .init_machine = mx27ads_board_init,
356 .timer = &mx27ads_timer,
357MACHINE_END