]> bbs.cooldavid.org Git - net-next-2.6.git/blame - arch/arm/mach-imx/mach-cpuimx27.c
cpuimx27: fix i2c bus selection
[net-next-2.6.git] / arch / arm / mach-imx / mach-cpuimx27.c
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1/*
2 * Copyright (C) 2009 Eric Benard - eric@eukrea.com
3 *
4 * Based on pcm038.c which is :
5 * Copyright 2007 Robert Schwebel <r.schwebel@pengutronix.de>, Pengutronix
6 * Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de)
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version 2
11 * of the License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
20 * MA 02110-1301, USA.
21 */
22
23#include <linux/i2c.h>
24#include <linux/io.h>
25#include <linux/mtd/plat-ram.h>
26#include <linux/mtd/physmap.h>
27#include <linux/platform_device.h>
28#include <linux/serial_8250.h>
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29#include <linux/usb/otg.h>
30#include <linux/usb/ulpi.h>
31#include <linux/fsl_devices.h>
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32
33#include <asm/mach-types.h>
34#include <asm/mach/arch.h>
35#include <asm/mach/time.h>
36#include <asm/mach/map.h>
37
95afd090 38#include <mach/eukrea-baseboards.h>
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39#include <mach/common.h>
40#include <mach/hardware.h>
e835d88e 41#include <mach/iomux-mx27.h>
af5b1df7 42#include <mach/mxc_nand.h>
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43#include <mach/mxc_ehci.h>
44#include <mach/ulpi.h>
af5b1df7 45
0e7a29a8 46#include "devices-imx27.h"
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47#include "devices.h"
48
49static int eukrea_cpuimx27_pins[] = {
50 /* UART1 */
51 PE12_PF_UART1_TXD,
52 PE13_PF_UART1_RXD,
53 PE14_PF_UART1_CTS,
54 PE15_PF_UART1_RTS,
55 /* UART4 */
2d66c780 56#if defined(MACH_EUKREA_CPUIMX27_USEUART4)
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57 PB26_AF_UART4_RTS,
58 PB28_AF_UART4_TXD,
59 PB29_AF_UART4_CTS,
60 PB31_AF_UART4_RXD,
2d66c780 61#endif
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62 /* FEC */
63 PD0_AIN_FEC_TXD0,
64 PD1_AIN_FEC_TXD1,
65 PD2_AIN_FEC_TXD2,
66 PD3_AIN_FEC_TXD3,
67 PD4_AOUT_FEC_RX_ER,
68 PD5_AOUT_FEC_RXD1,
69 PD6_AOUT_FEC_RXD2,
70 PD7_AOUT_FEC_RXD3,
71 PD8_AF_FEC_MDIO,
72 PD9_AIN_FEC_MDC,
73 PD10_AOUT_FEC_CRS,
74 PD11_AOUT_FEC_TX_CLK,
75 PD12_AOUT_FEC_RXD0,
76 PD13_AOUT_FEC_RX_DV,
77 PD14_AOUT_FEC_RX_CLK,
78 PD15_AOUT_FEC_COL,
79 PD16_AIN_FEC_TX_ER,
80 PF23_AIN_FEC_TX_EN,
81 /* I2C1 */
82 PD17_PF_I2C_DATA,
83 PD18_PF_I2C_CLK,
84 /* SDHC2 */
2d66c780 85#if defined(CONFIG_MACH_EUKREA_CPUIMX27_USESDHC2)
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86 PB4_PF_SD2_D0,
87 PB5_PF_SD2_D1,
88 PB6_PF_SD2_D2,
89 PB7_PF_SD2_D3,
90 PB8_PF_SD2_CMD,
91 PB9_PF_SD2_CLK,
2d66c780 92#endif
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93#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
94 /* Quad UART's IRQ */
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95 GPIO_PORTB | 22 | GPIO_GPIO | GPIO_IN,
96 GPIO_PORTB | 23 | GPIO_GPIO | GPIO_IN,
97 GPIO_PORTB | 27 | GPIO_GPIO | GPIO_IN,
98 GPIO_PORTB | 30 | GPIO_GPIO | GPIO_IN,
af5b1df7 99#endif
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100 /* OTG */
101 PC7_PF_USBOTG_DATA5,
102 PC8_PF_USBOTG_DATA6,
103 PC9_PF_USBOTG_DATA0,
104 PC10_PF_USBOTG_DATA2,
105 PC11_PF_USBOTG_DATA1,
106 PC12_PF_USBOTG_DATA4,
107 PC13_PF_USBOTG_DATA3,
108 PE0_PF_USBOTG_NXT,
109 PE1_PF_USBOTG_STP,
110 PE2_PF_USBOTG_DIR,
111 PE24_PF_USBOTG_CLK,
112 PE25_PF_USBOTG_DATA7,
113 /* USBH2 */
114 PA0_PF_USBH2_CLK,
115 PA1_PF_USBH2_DIR,
116 PA2_PF_USBH2_DATA7,
117 PA3_PF_USBH2_NXT,
118 PA4_PF_USBH2_STP,
119 PD19_AF_USBH2_DATA4,
120 PD20_AF_USBH2_DATA3,
121 PD21_AF_USBH2_DATA6,
122 PD22_AF_USBH2_DATA0,
123 PD23_AF_USBH2_DATA2,
124 PD24_AF_USBH2_DATA1,
125 PD26_AF_USBH2_DATA5,
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126};
127
128static struct physmap_flash_data eukrea_cpuimx27_flash_data = {
129 .width = 2,
130};
131
132static struct resource eukrea_cpuimx27_flash_resource = {
133 .start = 0xc0000000,
134 .end = 0xc3ffffff,
135 .flags = IORESOURCE_MEM,
136};
137
138static struct platform_device eukrea_cpuimx27_nor_mtd_device = {
139 .name = "physmap-flash",
140 .id = 0,
141 .dev = {
142 .platform_data = &eukrea_cpuimx27_flash_data,
143 },
144 .num_resources = 1,
145 .resource = &eukrea_cpuimx27_flash_resource,
146};
147
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148static const struct imxuart_platform_data uart_pdata __initconst = {
149 .flags = IMXUART_HAVE_RTSCTS,
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150};
151
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152static const struct mxc_nand_platform_data
153cpuimx27_nand_board_info __initconst = {
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154 .width = 1,
155 .hw_ecc = 1,
156};
157
158static struct platform_device *platform_devices[] __initdata = {
159 &eukrea_cpuimx27_nor_mtd_device,
160 &mxc_fec_device,
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161 &mxc_wdt,
162 &mxc_w1_master_device,
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163};
164
c6987159 165static const struct imxi2c_platform_data cpuimx27_i2c1_data __initconst = {
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166 .bitrate = 100000,
167};
168
169static struct i2c_board_info eukrea_cpuimx27_i2c_devices[] = {
170 {
cf87a6e2 171 I2C_BOARD_INFO("pcf8563", 0x51),
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172 },
173};
174
175#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
176static struct plat_serial8250_port serial_platform_data[] = {
177 {
3f35d1f5 178 .mapbase = (unsigned long)(MX27_CS3_BASE_ADDR + 0x200000),
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179 .irq = IRQ_GPIOB(23),
180 .uartclk = 14745600,
181 .regshift = 1,
182 .iotype = UPIO_MEM,
183 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,
184 }, {
3f35d1f5 185 .mapbase = (unsigned long)(MX27_CS3_BASE_ADDR + 0x400000),
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186 .irq = IRQ_GPIOB(22),
187 .uartclk = 14745600,
188 .regshift = 1,
189 .iotype = UPIO_MEM,
190 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,
191 }, {
3f35d1f5 192 .mapbase = (unsigned long)(MX27_CS3_BASE_ADDR + 0x800000),
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193 .irq = IRQ_GPIOB(27),
194 .uartclk = 14745600,
195 .regshift = 1,
196 .iotype = UPIO_MEM,
197 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,
198 }, {
3f35d1f5 199 .mapbase = (unsigned long)(MX27_CS3_BASE_ADDR + 0x1000000),
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200 .irq = IRQ_GPIOB(30),
201 .uartclk = 14745600,
202 .regshift = 1,
203 .iotype = UPIO_MEM,
204 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,
205 }, {
206 }
207};
208
209static struct platform_device serial_device = {
210 .name = "serial8250",
211 .id = 0,
212 .dev = {
213 .platform_data = serial_platform_data,
214 },
215};
216#endif
217
cbb052c9 218#if defined(CONFIG_USB_ULPI)
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219static struct mxc_usbh_platform_data otg_pdata = {
220 .portsc = MXC_EHCI_MODE_ULPI,
221 .flags = MXC_EHCI_INTERFACE_DIFF_UNI,
222};
223
224static struct mxc_usbh_platform_data usbh2_pdata = {
225 .portsc = MXC_EHCI_MODE_ULPI,
226 .flags = MXC_EHCI_INTERFACE_DIFF_UNI,
227};
cbb052c9 228#endif
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229
230static struct fsl_usb2_platform_data otg_device_pdata = {
231 .operating_mode = FSL_USB2_DR_DEVICE,
232 .phy_mode = FSL_USB2_PHY_ULPI,
233};
234
235static int otg_mode_host;
236
237static int __init eukrea_cpuimx27_otg_mode(char *options)
238{
239 if (!strcmp(options, "host"))
240 otg_mode_host = 1;
241 else if (!strcmp(options, "device"))
242 otg_mode_host = 0;
243 else
244 pr_info("otg_mode neither \"host\" nor \"device\". "
245 "Defaulting to device\n");
246 return 0;
247}
248__setup("otg_mode=", eukrea_cpuimx27_otg_mode);
249
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250static void __init eukrea_cpuimx27_init(void)
251{
252 mxc_gpio_setup_multiple_pins(eukrea_cpuimx27_pins,
253 ARRAY_SIZE(eukrea_cpuimx27_pins), "CPUIMX27");
254
d5dac4a6 255 imx27_add_imx_uart0(&uart_pdata);
af5b1df7 256
0e7a29a8 257 imx27_add_mxc_nand(&cpuimx27_nand_board_info);
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258
259 i2c_register_board_info(0, eukrea_cpuimx27_i2c_devices,
260 ARRAY_SIZE(eukrea_cpuimx27_i2c_devices));
261
4793ca40 262 imx27_add_i2c_imx0(&cpuimx27_i2c1_data);
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263
264 platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
265
266#if defined(CONFIG_MACH_EUKREA_CPUIMX27_USESDHC2)
267 /* SDHC2 can be used for Wifi */
268 mxc_register_device(&mxc_sdhc_device1, NULL);
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269#endif
270#if defined(MACH_EUKREA_CPUIMX27_USEUART4)
af5b1df7 271 /* in which case UART4 is also used for Bluetooth */
d5dac4a6 272 imx27_add_imx_uart3(&uart_pdata);
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273#endif
274
275#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
276 platform_device_register(&serial_device);
277#endif
278
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279#if defined(CONFIG_USB_ULPI)
280 if (otg_mode_host) {
281 otg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
282 USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);
283
284 mxc_register_device(&mxc_otg_host, &otg_pdata);
285 }
286
287 usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
288 USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);
289
290 mxc_register_device(&mxc_usbh2, &usbh2_pdata);
291#endif
292 if (!otg_mode_host)
293 mxc_register_device(&mxc_otg_udc_device, &otg_device_pdata);
294
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295#ifdef CONFIG_MACH_EUKREA_MBIMX27_BASEBOARD
296 eukrea_mbimx27_baseboard_init();
297#endif
298}
299
300static void __init eukrea_cpuimx27_timer_init(void)
301{
302 mx27_clocks_init(26000000);
303}
304
305static struct sys_timer eukrea_cpuimx27_timer = {
306 .init = eukrea_cpuimx27_timer_init,
307};
308
309MACHINE_START(CPUIMX27, "EUKREA CPUIMX27")
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310 .phys_io = MX27_AIPI_BASE_ADDR,
311 .io_pg_offst = ((MX27_AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
34101237 312 .boot_params = MX27_PHYS_OFFSET + 0x100,
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313 .map_io = mx27_map_io,
314 .init_irq = mx27_init_irq,
315 .init_machine = eukrea_cpuimx27_init,
316 .timer = &eukrea_cpuimx27_timer,
317MACHINE_END