1 /*
2 * Support for Cogent CSB726
3 *
4 * Copyright (c) 2008 Dmitry Eremin-Solenikov
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 version 2 as
8 * published by the Free Software Foundation.
9 *
10 */
11 #include <linux/kernel.h>
12 #include <linux/init.h>
13 #include <linux/io.h>
14 #include <linux/gpio.h>
15 #include <linux/platform_device.h>
16 #include <linux/mtd/physmap.h>
17 #include <linux/mtd/partitions.h>
18 #include <linux/sm501.h>
19 #include <linux/smsc911x.h>
20
21 #include <asm/mach-types.h>
22 #include <asm/mach/arch.h>
23 #include <mach/csb726.h>
24 #include <mach/mfp-pxa27x.h>
25 #include <plat/i2c.h>
26 #include <mach/mmc.h>
27 #include <mach/ohci.h>
28 #include <mach/pxa2xx-regs.h>
29 #include <mach/audio.h>
30
31 #include "generic.h"
32 #include "devices.h"
33
34 /*
35 * n/a: 2, 5, 6, 7, 8, 23, 24, 25, 26, 27, 87, 88, 89,
36 * nu: 58 -- 77, 90, 91, 93, 102, 105-108, 114-116,
37 * XXX: 21,
38 * XXX: 79 CS_3 for LAN9215 or PSKTSEL on R2, R3
39 * XXX: 33 CS_5 for LAN9215 on R1
40 */
41
42 static unsigned long csb726_pin_config[] = {
43 GPIO78_nCS_2, /* EXP_CS */
44 GPIO79_nCS_3, /* SMSC9215 */
45 GPIO80_nCS_4, /* SM501 */
46
47 GPIO52_GPIO, /* #SMSC9251 int */
48 GPIO53_GPIO, /* SM501 int */
49
50 GPIO1_GPIO, /* GPIO0 */
51 GPIO11_GPIO, /* GPIO1 */
52 GPIO9_GPIO, /* GPIO2 */
53 GPIO10_GPIO, /* GPIO3 */
54 GPIO16_PWM0_OUT, /* or GPIO4 */
55 GPIO17_PWM1_OUT, /* or GPIO5 */
56 GPIO94_GPIO, /* GPIO6 */
57 GPIO95_GPIO, /* GPIO7 */
58 GPIO96_GPIO, /* GPIO8 */
59 GPIO97_GPIO, /* GPIO9 */
60 GPIO15_GPIO, /* EXP_IRQ */
61 GPIO18_RDY, /* EXP_WAIT */
62
63 GPIO0_GPIO, /* PWR_INT */
64 GPIO104_GPIO, /* PWR_OFF */
65
66 GPIO12_GPIO, /* touch irq */
67
68 GPIO13_SSP2_TXD,
69 GPIO14_SSP2_SFRM,
70 MFP_CFG_OUT(GPIO19, AF1, DRIVE_LOW),/* SSP2_SYSCLK */
71 GPIO22_SSP2_SCLK,
72
73 GPIO81_SSP3_TXD,
74 GPIO82_SSP3_RXD,
75 GPIO83_SSP3_SFRM,
76 GPIO84_SSP3_SCLK,
77
78 GPIO20_GPIO, /* SDIO int */
79 GPIO32_MMC_CLK,
80 GPIO92_MMC_DAT_0,
81 GPIO109_MMC_DAT_1,
82 GPIO110_MMC_DAT_2,
83 GPIO111_MMC_DAT_3,
84 GPIO112_MMC_CMD,
85 GPIO100_GPIO, /* SD CD */
86 GPIO101_GPIO, /* SD WP */
87
88 GPIO28_AC97_BITCLK,
89 GPIO29_AC97_SDATA_IN_0,
90 GPIO30_AC97_SDATA_OUT,
91 GPIO31_AC97_SYNC,
92 GPIO113_AC97_nRESET,
93
94 GPIO34_FFUART_RXD,
95 GPIO35_FFUART_CTS,
96 GPIO36_FFUART_DCD,
97 GPIO37_FFUART_DSR,
98 GPIO38_FFUART_RI,
99 GPIO39_FFUART_TXD,
100 GPIO40_FFUART_DTR,
101 GPIO41_FFUART_RTS,
102
103 GPIO42_BTUART_RXD,
104 GPIO43_BTUART_TXD,
105 GPIO44_BTUART_CTS,
106 GPIO45_BTUART_RTS,
107
108 GPIO46_STUART_RXD,
109 GPIO47_STUART_TXD,
110
111 GPIO48_nPOE,
112 GPIO49_nPWE,
113 GPIO50_nPIOR,
114 GPIO51_nPIOW,
115 GPIO54_nPCE_2,
116 GPIO55_nPREG,
117 GPIO56_nPWAIT,
118 GPIO57_nIOIS16, /* maybe unused */
119 GPIO85_nPCE_1,
120 GPIO98_GPIO, /* CF IRQ */
121 GPIO99_GPIO, /* CF CD */
122 GPIO103_GPIO, /* Reset */
123
124 GPIO117_I2C_SCL,
125 GPIO118_I2C_SDA,
126 };
127
128 static struct pxamci_platform_data csb726_mci_data;
129
130 static int csb726_mci_init(struct device *dev,
131 irq_handler_t detect, void *data)
132 {
133 int err;
134
135 csb726_mci_data.detect_delay = msecs_to_jiffies(500);
136
137 err = gpio_request(CSB726_GPIO_MMC_DETECT, "MMC detect");
138 if (err)
139 goto err_det_req;
140
141 err = gpio_direction_input(CSB726_GPIO_MMC_DETECT);
142 if (err)
143 goto err_det_dir;
144
145 err = gpio_request(CSB726_GPIO_MMC_RO, "MMC ro");
146 if (err)
147 goto err_ro_req;
148
149 err = gpio_direction_input(CSB726_GPIO_MMC_RO);
150 if (err)
151 goto err_ro_dir;
152
153 err = request_irq(gpio_to_irq(CSB726_GPIO_MMC_DETECT), detect,
154 IRQF_DISABLED, "MMC card detect", data);
155 if (err)
156 goto err_irq;
157
158 return 0;
159
160 err_irq:
161 err_ro_dir:
162 gpio_free(CSB726_GPIO_MMC_RO);
163 err_ro_req:
164 err_det_dir:
165 gpio_free(CSB726_GPIO_MMC_DETECT);
166 err_det_req:
167 return err;
168 }
169
170 static int csb726_mci_get_ro(struct device *dev)
171 {
172 return gpio_get_value(CSB726_GPIO_MMC_RO);
173 }
174
175 static void csb726_mci_exit(struct device *dev, void *data)
176 {
177 free_irq(gpio_to_irq(CSB726_GPIO_MMC_DETECT), data);
178 gpio_free(CSB726_GPIO_MMC_RO);
179 gpio_free(CSB726_GPIO_MMC_DETECT);
180 }
181
182 static struct pxamci_platform_data csb726_mci = {
183 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
184 .init = csb726_mci_init,
185 .get_ro = csb726_mci_get_ro,
186 /* FIXME setpower */
187 .exit = csb726_mci_exit,
188 };
189
190 static struct pxaohci_platform_data csb726_ohci_platform_data = {
191 .port_mode = PMM_NPS_MODE,
192 .flags = ENABLE_PORT1 | NO_OC_PROTECTION,
193 };
194
195 static struct mtd_partition csb726_flash_partitions[] = {
196 {
197 .name = "Bootloader",
198 .offset = 0,
199 .size = CSB726_FLASH_uMON,
200 .mask_flags = MTD_WRITEABLE /* force read-only */
201 },
202 {
203 .name = "root",
204 .offset = MTDPART_OFS_APPEND,
205 .size = MTDPART_SIZ_FULL,
206 }
207 };
208
209 static struct physmap_flash_data csb726_flash_data = {
210 .width = 2,
211 .parts = csb726_flash_partitions,
212 .nr_parts = ARRAY_SIZE(csb726_flash_partitions),
213 };
214
215 static struct resource csb726_flash_resources[] = {
216 {
217 .start = PXA_CS0_PHYS,
218 .end = PXA_CS0_PHYS + CSB726_FLASH_SIZE - 1 ,
219 .flags = IORESOURCE_MEM,
220 }
221 };
222
223 static struct platform_device csb726_flash = {
224 .name = "physmap-flash",
225 .dev = {
226 .platform_data = &csb726_flash_data,
227 },
228 .resource = csb726_flash_resources,
229 .num_resources = ARRAY_SIZE(csb726_flash_resources),
230 };
231
232 static struct resource csb726_sm501_resources[] = {
233 {
234 .start = PXA_CS4_PHYS,
235 .end = PXA_CS4_PHYS + SZ_8M - 1,
236 .flags = IORESOURCE_MEM,
237 .name = "sm501-localmem",
238 },
239 {
240 .start = PXA_CS4_PHYS + SZ_64M - SZ_2M,
241 .end = PXA_CS4_PHYS + SZ_64M - 1,
242 .flags = IORESOURCE_MEM,
243 .name = "sm501-regs",
244 },
245 {
246 .start = CSB726_IRQ_SM501,
247 .end = CSB726_IRQ_SM501,
248 .flags = IORESOURCE_IRQ,
249 },
250 };
251
252 static struct sm501_initdata csb726_sm501_initdata = {
253 /* .devices = SM501_USE_USB_HOST, */
254 .devices = SM501_USE_USB_HOST | SM501_USE_UART0 | SM501_USE_UART1,
255 };
256
257 static struct sm501_platdata csb726_sm501_platdata = {
258 .init = &csb726_sm501_initdata,
259 };
260
261 static struct platform_device csb726_sm501 = {
262 .name = "sm501",
263 .id = 0,
264 .num_resources = ARRAY_SIZE(csb726_sm501_resources),
265 .resource = csb726_sm501_resources,
266 .dev = {
267 .platform_data = &csb726_sm501_platdata,
268 },
269 };
270
271 static struct resource csb726_lan_resources[] = {
272 {
273 .start = PXA_CS3_PHYS,
274 .end = PXA_CS3_PHYS + SZ_64K - 1,
275 .flags = IORESOURCE_MEM,
276 },
277 {
278 .start = CSB726_IRQ_LAN,
279 .end = CSB726_IRQ_LAN,
280 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
281 },
282 };
283
284 struct smsc911x_platform_config csb726_lan_config = {
285 .irq_type = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
286 .irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
287 .flags = SMSC911X_USE_32BIT,
288 .phy_interface = PHY_INTERFACE_MODE_MII,
289 };
290
291
292 static struct platform_device csb726_lan = {
293 .name = "smsc911x",
294 .id = -1,
295 .num_resources = ARRAY_SIZE(csb726_lan_resources),
296 .resource = csb726_lan_resources,
297 .dev = {
298 .platform_data = &csb726_lan_config,
299 },
300 };
301
302 static struct platform_device *devices[] __initdata = {
303 &csb726_flash,
304 &csb726_sm501,
305 &csb726_lan,
306 };
307
308 static void __init csb726_init(void)
309 {
310 pxa2xx_mfp_config(ARRAY_AND_SIZE(csb726_pin_config));
311 /* MSC1 = 0x7ffc3ffc; *//* LAN9215/EXP_CS */
312 /* MSC2 = 0x06697ff4; *//* none/SM501 */
313 MSC2 = (MSC2 & ~0xffff) | 0x7ff4; /* SM501 */
314
315 pxa_set_i2c_info(NULL);
316 pxa27x_set_i2c_power_info(NULL);
317 pxa_set_mci_info(&csb726_mci);
318 pxa_set_ohci_info(&csb726_ohci_platform_data);
319 pxa_set_ac97_info(NULL);
320
321 platform_add_devices(devices, ARRAY_SIZE(devices));
322 }
323
324 MACHINE_START(CSB726, "Cogent CSB726")
325 .phys_io = 0x40000000,
326 .boot_params = 0xa0000100,
327 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
328 .map_io = pxa_map_io,
329 .init_irq = pxa27x_init_irq,
330 .init_machine = csb726_init,
331 .timer = &pxa_timer,
332 MACHINE_END
333
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