7d3e1b46e550f3469adb2da0697e561bab69c28a
[linux-2.6.git] / arch / arm / mach-pxa / csb726.c
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