diff options
Diffstat (limited to 'arch/arm/mach-mx2/mx27ads.c')
-rw-r--r-- | arch/arm/mach-mx2/mx27ads.c | 304 |
1 files changed, 304 insertions, 0 deletions
diff --git a/arch/arm/mach-mx2/mx27ads.c b/arch/arm/mach-mx2/mx27ads.c new file mode 100644 index 000000000000..a9ff01fff137 --- /dev/null +++ b/arch/arm/mach-mx2/mx27ads.c | |||
@@ -0,0 +1,304 @@ | |||
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 | * You should have received a copy of the GNU General Public License | ||
17 | * along with this program; if not, write to the Free Software | ||
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
19 | */ | ||
20 | |||
21 | #include <linux/platform_device.h> | ||
22 | #include <linux/mtd/mtd.h> | ||
23 | #include <linux/mtd/map.h> | ||
24 | #include <linux/mtd/partitions.h> | ||
25 | #include <linux/mtd/physmap.h> | ||
26 | #include <asm/arch/common.h> | ||
27 | #include <asm/hardware.h> | ||
28 | #include <asm/mach-types.h> | ||
29 | #include <asm/mach/arch.h> | ||
30 | #include <asm/mach/time.h> | ||
31 | #include <asm/mach/map.h> | ||
32 | #include <asm/arch/gpio.h> | ||
33 | #include <asm/arch/imx-uart.h> | ||
34 | #include <asm/arch/iomux-mx1-mx2.h> | ||
35 | #include <asm/arch/board-mx27ads.h> | ||
36 | |||
37 | /* ADS's NOR flash */ | ||
38 | static struct physmap_flash_data mx27ads_flash_data = { | ||
39 | .width = 2, | ||
40 | }; | ||
41 | |||
42 | static struct resource mx27ads_flash_resource = { | ||
43 | .start = 0xc0000000, | ||
44 | .end = 0xc0000000 + 0x02000000 - 1, | ||
45 | .flags = IORESOURCE_MEM, | ||
46 | |||
47 | }; | ||
48 | |||
49 | static struct platform_device mx27ads_nor_mtd_device = { | ||
50 | .name = "physmap-flash", | ||
51 | .id = 0, | ||
52 | .dev = { | ||
53 | .platform_data = &mx27ads_flash_data, | ||
54 | }, | ||
55 | .num_resources = 1, | ||
56 | .resource = &mx27ads_flash_resource, | ||
57 | }; | ||
58 | |||
59 | static int mxc_uart0_pins[] = { | ||
60 | PE12_PF_UART1_TXD, | ||
61 | PE13_PF_UART1_RXD, | ||
62 | PE14_PF_UART1_CTS, | ||
63 | PE15_PF_UART1_RTS | ||
64 | }; | ||
65 | |||
66 | static int uart_mxc_port0_init(struct platform_device *pdev) | ||
67 | { | ||
68 | return mxc_gpio_setup_multiple_pins(mxc_uart0_pins, | ||
69 | ARRAY_SIZE(mxc_uart0_pins), | ||
70 | MXC_GPIO_ALLOC_MODE_NORMAL, "UART0"); | ||
71 | } | ||
72 | |||
73 | static int uart_mxc_port0_exit(struct platform_device *pdev) | ||
74 | { | ||
75 | return mxc_gpio_setup_multiple_pins(mxc_uart0_pins, | ||
76 | ARRAY_SIZE(mxc_uart0_pins), | ||
77 | MXC_GPIO_ALLOC_MODE_RELEASE, "UART0"); | ||
78 | } | ||
79 | |||
80 | static int mxc_uart1_pins[] = { | ||
81 | PE3_PF_UART2_CTS, | ||
82 | PE4_PF_UART2_RTS, | ||
83 | PE6_PF_UART2_TXD, | ||
84 | PE7_PF_UART2_RXD | ||
85 | }; | ||
86 | |||
87 | static int uart_mxc_port1_init(struct platform_device *pdev) | ||
88 | { | ||
89 | return mxc_gpio_setup_multiple_pins(mxc_uart1_pins, | ||
90 | ARRAY_SIZE(mxc_uart1_pins), | ||
91 | MXC_GPIO_ALLOC_MODE_NORMAL, "UART1"); | ||
92 | } | ||
93 | |||
94 | static int uart_mxc_port1_exit(struct platform_device *pdev) | ||
95 | { | ||
96 | return mxc_gpio_setup_multiple_pins(mxc_uart1_pins, | ||
97 | ARRAY_SIZE(mxc_uart1_pins), | ||
98 | MXC_GPIO_ALLOC_MODE_RELEASE, "UART1"); | ||
99 | } | ||
100 | |||
101 | static int mxc_uart2_pins[] = { | ||
102 | PE8_PF_UART3_TXD, | ||
103 | PE9_PF_UART3_RXD, | ||
104 | PE10_PF_UART3_CTS, | ||
105 | PE11_PF_UART3_RTS | ||
106 | }; | ||
107 | |||
108 | static int uart_mxc_port2_init(struct platform_device *pdev) | ||
109 | { | ||
110 | return mxc_gpio_setup_multiple_pins(mxc_uart2_pins, | ||
111 | ARRAY_SIZE(mxc_uart2_pins), | ||
112 | MXC_GPIO_ALLOC_MODE_NORMAL, "UART2"); | ||
113 | } | ||
114 | |||
115 | static int uart_mxc_port2_exit(struct platform_device *pdev) | ||
116 | { | ||
117 | return mxc_gpio_setup_multiple_pins(mxc_uart2_pins, | ||
118 | ARRAY_SIZE(mxc_uart2_pins), | ||
119 | MXC_GPIO_ALLOC_MODE_RELEASE, "UART2"); | ||
120 | } | ||
121 | |||
122 | static int mxc_uart3_pins[] = { | ||
123 | PB26_AF_UART4_RTS, | ||
124 | PB28_AF_UART4_TXD, | ||
125 | PB29_AF_UART4_CTS, | ||
126 | PB31_AF_UART4_RXD | ||
127 | }; | ||
128 | |||
129 | static int uart_mxc_port3_init(struct platform_device *pdev) | ||
130 | { | ||
131 | return mxc_gpio_setup_multiple_pins(mxc_uart3_pins, | ||
132 | ARRAY_SIZE(mxc_uart3_pins), | ||
133 | MXC_GPIO_ALLOC_MODE_NORMAL, "UART3"); | ||
134 | } | ||
135 | |||
136 | static int uart_mxc_port3_exit(struct platform_device *pdev) | ||
137 | { | ||
138 | return mxc_gpio_setup_multiple_pins(mxc_uart3_pins, | ||
139 | ARRAY_SIZE(mxc_uart3_pins), | ||
140 | MXC_GPIO_ALLOC_MODE_RELEASE, "UART3"); | ||
141 | } | ||
142 | |||
143 | static int mxc_uart4_pins[] = { | ||
144 | PB18_AF_UART5_TXD, | ||
145 | PB19_AF_UART5_RXD, | ||
146 | PB20_AF_UART5_CTS, | ||
147 | PB21_AF_UART5_RTS | ||
148 | }; | ||
149 | |||
150 | static int uart_mxc_port4_init(struct platform_device *pdev) | ||
151 | { | ||
152 | return mxc_gpio_setup_multiple_pins(mxc_uart4_pins, | ||
153 | ARRAY_SIZE(mxc_uart4_pins), | ||
154 | MXC_GPIO_ALLOC_MODE_NORMAL, "UART4"); | ||
155 | } | ||
156 | |||
157 | static int uart_mxc_port4_exit(struct platform_device *pdev) | ||
158 | { | ||
159 | return mxc_gpio_setup_multiple_pins(mxc_uart4_pins, | ||
160 | ARRAY_SIZE(mxc_uart4_pins), | ||
161 | MXC_GPIO_ALLOC_MODE_RELEASE, "UART4"); | ||
162 | } | ||
163 | |||
164 | static int mxc_uart5_pins[] = { | ||
165 | PB10_AF_UART6_TXD, | ||
166 | PB12_AF_UART6_CTS, | ||
167 | PB11_AF_UART6_RXD, | ||
168 | PB13_AF_UART6_RTS | ||
169 | }; | ||
170 | |||
171 | static int uart_mxc_port5_init(struct platform_device *pdev) | ||
172 | { | ||
173 | return mxc_gpio_setup_multiple_pins(mxc_uart5_pins, | ||
174 | ARRAY_SIZE(mxc_uart5_pins), | ||
175 | MXC_GPIO_ALLOC_MODE_NORMAL, "UART5"); | ||
176 | } | ||
177 | |||
178 | static int uart_mxc_port5_exit(struct platform_device *pdev) | ||
179 | { | ||
180 | return mxc_gpio_setup_multiple_pins(mxc_uart5_pins, | ||
181 | ARRAY_SIZE(mxc_uart5_pins), | ||
182 | MXC_GPIO_ALLOC_MODE_RELEASE, "UART5"); | ||
183 | } | ||
184 | |||
185 | static struct platform_device *platform_devices[] __initdata = { | ||
186 | &mx27ads_nor_mtd_device, | ||
187 | }; | ||
188 | |||
189 | static int mxc_fec_pins[] = { | ||
190 | PD0_AIN_FEC_TXD0, | ||
191 | PD1_AIN_FEC_TXD1, | ||
192 | PD2_AIN_FEC_TXD2, | ||
193 | PD3_AIN_FEC_TXD3, | ||
194 | PD4_AOUT_FEC_RX_ER, | ||
195 | PD5_AOUT_FEC_RXD1, | ||
196 | PD6_AOUT_FEC_RXD2, | ||
197 | PD7_AOUT_FEC_RXD3, | ||
198 | PD8_AF_FEC_MDIO, | ||
199 | PD9_AIN_FEC_MDC, | ||
200 | PD10_AOUT_FEC_CRS, | ||
201 | PD11_AOUT_FEC_TX_CLK, | ||
202 | PD12_AOUT_FEC_RXD0, | ||
203 | PD13_AOUT_FEC_RX_DV, | ||
204 | PD14_AOUT_FEC_CLR, | ||
205 | PD15_AOUT_FEC_COL, | ||
206 | PD16_AIN_FEC_TX_ER, | ||
207 | PF23_AIN_FEC_TX_EN | ||
208 | }; | ||
209 | |||
210 | static void gpio_fec_active(void) | ||
211 | { | ||
212 | mxc_gpio_setup_multiple_pins(mxc_fec_pins, | ||
213 | ARRAY_SIZE(mxc_fec_pins), | ||
214 | MXC_GPIO_ALLOC_MODE_NORMAL, "FEC"); | ||
215 | } | ||
216 | |||
217 | static void gpio_fec_inactive(void) | ||
218 | { | ||
219 | mxc_gpio_setup_multiple_pins(mxc_fec_pins, | ||
220 | ARRAY_SIZE(mxc_fec_pins), | ||
221 | MXC_GPIO_ALLOC_MODE_RELEASE, "FEC"); | ||
222 | } | ||
223 | |||
224 | static struct imxuart_platform_data uart_pdata[] = { | ||
225 | { | ||
226 | .init = uart_mxc_port0_init, | ||
227 | .exit = uart_mxc_port0_exit, | ||
228 | .flags = IMXUART_HAVE_RTSCTS, | ||
229 | }, { | ||
230 | .init = uart_mxc_port1_init, | ||
231 | .exit = uart_mxc_port1_exit, | ||
232 | .flags = IMXUART_HAVE_RTSCTS, | ||
233 | }, { | ||
234 | .init = uart_mxc_port2_init, | ||
235 | .exit = uart_mxc_port2_exit, | ||
236 | .flags = IMXUART_HAVE_RTSCTS, | ||
237 | }, { | ||
238 | .init = uart_mxc_port3_init, | ||
239 | .exit = uart_mxc_port3_exit, | ||
240 | .flags = IMXUART_HAVE_RTSCTS, | ||
241 | }, { | ||
242 | .init = uart_mxc_port4_init, | ||
243 | .exit = uart_mxc_port4_exit, | ||
244 | .flags = IMXUART_HAVE_RTSCTS, | ||
245 | }, { | ||
246 | .init = uart_mxc_port5_init, | ||
247 | .exit = uart_mxc_port5_exit, | ||
248 | .flags = IMXUART_HAVE_RTSCTS, | ||
249 | }, | ||
250 | }; | ||
251 | |||
252 | static void __init mx27ads_board_init(void) | ||
253 | { | ||
254 | int i; | ||
255 | |||
256 | gpio_fec_active(); | ||
257 | |||
258 | for (i = 0; i < 6; i++) | ||
259 | imx_init_uart(i, &uart_pdata[i]); | ||
260 | |||
261 | platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices)); | ||
262 | } | ||
263 | |||
264 | static void __init mx27ads_timer_init(void) | ||
265 | { | ||
266 | unsigned long fref = 26000000; | ||
267 | |||
268 | if ((__raw_readw(PBC_VERSION_REG) & CKIH_27MHZ_BIT_SET) == 0) | ||
269 | fref = 27000000; | ||
270 | |||
271 | mxc_clocks_init(fref); | ||
272 | mxc_timer_init("gpt_clk.0"); | ||
273 | } | ||
274 | |||
275 | struct sys_timer mx27ads_timer = { | ||
276 | .init = mx27ads_timer_init, | ||
277 | }; | ||
278 | |||
279 | static struct map_desc mx27ads_io_desc[] __initdata = { | ||
280 | { | ||
281 | .virtual = PBC_BASE_ADDRESS, | ||
282 | .pfn = __phys_to_pfn(CS4_BASE_ADDR), | ||
283 | .length = SZ_1M, | ||
284 | .type = MT_DEVICE, | ||
285 | }, | ||
286 | }; | ||
287 | |||
288 | void __init mx27ads_map_io(void) | ||
289 | { | ||
290 | mxc_map_io(); | ||
291 | iotable_init(mx27ads_io_desc, ARRAY_SIZE(mx27ads_io_desc)); | ||
292 | } | ||
293 | |||
294 | MACHINE_START(MX27ADS, "Freescale i.MX27ADS") | ||
295 | /* maintainer: Freescale Semiconductor, Inc. */ | ||
296 | .phys_io = AIPI_BASE_ADDR, | ||
297 | .io_pg_offst = ((AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc, | ||
298 | .boot_params = PHYS_OFFSET + 0x100, | ||
299 | .map_io = mx27ads_map_io, | ||
300 | .init_irq = mxc_init_irq, | ||
301 | .init_machine = mx27ads_board_init, | ||
302 | .timer = &mx27ads_timer, | ||
303 | MACHINE_END | ||
304 | |||