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 #include <linux/i2c/pxa-i2c.h>
21
22 #include <asm/mach-types.h>
23 #include <asm/mach/arch.h>
24 #include <mach/csb726.h>
25 #include <mach/mfp-pxa27x.h>
26 #include <mach/mmc.h>
27 #include <mach/ohci.h>
28 #include <mach/pxa2xx-regs.h>
29 #include <mach/audio.h>
30 #include <mach/smemc.h>
31
32 #include "generic.h"
33 #include "devices.h"
34
35 /*
36 * n/a: 2, 5, 6, 7, 8, 23, 24, 25, 26, 27, 87, 88, 89,
37 * nu: 58 -- 77, 90, 91, 93, 102, 105-108, 114-116,
38 * XXX: 21,
39 * XXX: 79 CS_3 for LAN9215 or PSKTSEL on R2, R3
40 * XXX: 33 CS_5 for LAN9215 on R1
41 */
42
43 static unsigned long csb726_pin_config[] = {
44 GPIO78_nCS_2, /* EXP_CS */
45 GPIO79_nCS_3, /* SMSC9215 */
46 GPIO80_nCS_4, /* SM501 */
47
48 GPIO52_GPIO, /* #SMSC9251 int */
49 GPIO53_GPIO, /* SM501 int */
50
51 GPIO1_GPIO, /* GPIO0 */
52 GPIO11_GPIO, /* GPIO1 */
53 GPIO9_GPIO, /* GPIO2 */
54 GPIO10_GPIO, /* GPIO3 */
55 GPIO16_PWM0_OUT, /* or GPIO4 */
56 GPIO17_PWM1_OUT, /* or GPIO5 */
57 GPIO94_GPIO, /* GPIO6 */
58 GPIO95_GPIO, /* GPIO7 */
59 GPIO96_GPIO, /* GPIO8 */
60 GPIO97_GPIO, /* GPIO9 */
61 GPIO15_GPIO, /* EXP_IRQ */
62 GPIO18_RDY, /* EXP_WAIT */
63
64 GPIO0_GPIO, /* PWR_INT */
65 GPIO104_GPIO, /* PWR_OFF */
66
67 GPIO12_GPIO, /* touch irq */
68
69 GPIO13_SSP2_TXD,
70 GPIO14_SSP2_SFRM,
71 MFP_CFG_OUT(GPIO19, AF1, DRIVE_LOW),/* SSP2_SYSCLK */
72 GPIO22_SSP2_SCLK,
73
74 GPIO81_SSP3_TXD,
75 GPIO82_SSP3_RXD,
76 GPIO83_SSP3_SFRM,
77 GPIO84_SSP3_SCLK,
78
79 GPIO20_GPIO, /* SDIO int */
80 GPIO32_MMC_CLK,
81 GPIO92_MMC_DAT_0,
82 GPIO109_MMC_DAT_1,
83 GPIO110_MMC_DAT_2,
84 GPIO111_MMC_DAT_3,
85 GPIO112_MMC_CMD,
86 GPIO100_GPIO, /* SD CD */
87 GPIO101_GPIO, /* SD WP */
88
89 GPIO28_AC97_BITCLK,
90 GPIO29_AC97_SDATA_IN_0,
91 GPIO30_AC97_SDATA_OUT,
92 GPIO31_AC97_SYNC,
93 GPIO113_AC97_nRESET,
94
95 GPIO34_FFUART_RXD,
96 GPIO35_FFUART_CTS,
97 GPIO36_FFUART_DCD,
98 GPIO37_FFUART_DSR,
99 GPIO38_FFUART_RI,
100 GPIO39_FFUART_TXD,
101 GPIO40_FFUART_DTR,
102 GPIO41_FFUART_RTS,
103
104 GPIO42_BTUART_RXD,
105 GPIO43_BTUART_TXD,
106 GPIO44_BTUART_CTS,
107 GPIO45_BTUART_RTS,
108
109 GPIO46_STUART_RXD,
110 GPIO47_STUART_TXD,
111
112 GPIO48_nPOE,
113 GPIO49_nPWE,
114 GPIO50_nPIOR,
115 GPIO51_nPIOW,
116 GPIO54_nPCE_2,
117 GPIO55_nPREG,
118 GPIO56_nPWAIT,
119 GPIO57_nIOIS16, /* maybe unused */
120 GPIO85_nPCE_1,
121 GPIO98_GPIO, /* CF IRQ */
122 GPIO99_GPIO, /* CF CD */
123 GPIO103_GPIO, /* Reset */
124
125 GPIO117_I2C_SCL,
126 GPIO118_I2C_SDA,
127 };
128
129 static struct pxamci_platform_data csb726_mci = {
130 .detect_delay_ms = 500,
131 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
132 /* FIXME setpower */
133 .gpio_card_detect = CSB726_GPIO_MMC_DETECT,
134 .gpio_card_ro = CSB726_GPIO_MMC_RO,
135 .gpio_power = -1,
136 };
137
138 static struct pxaohci_platform_data csb726_ohci_platform_data = {
139 .port_mode = PMM_NPS_MODE,
140 .flags = ENABLE_PORT1 | NO_OC_PROTECTION,
141 };
142
143 static struct mtd_partition csb726_flash_partitions[] = {
144 {
145 .name = "Bootloader",
146 .offset = 0,
147 .size = CSB726_FLASH_uMON,
148 .mask_flags = MTD_WRITEABLE /* force read-only */
149 },
150 {
151 .name = "root",
152 .offset = MTDPART_OFS_APPEND,
153 .size = MTDPART_SIZ_FULL,
154 }
155 };
156
157 static struct physmap_flash_data csb726_flash_data = {
158 .width = 2,
159 .parts = csb726_flash_partitions,
160 .nr_parts = ARRAY_SIZE(csb726_flash_partitions),
161 };
162
163 static struct resource csb726_flash_resources[] = {
164 {
165 .start = PXA_CS0_PHYS,
166 .end = PXA_CS0_PHYS + CSB726_FLASH_SIZE - 1 ,
167 .flags = IORESOURCE_MEM,
168 }
169 };
170
171 static struct platform_device csb726_flash = {
172 .name = "physmap-flash",
173 .dev = {
174 .platform_data = &csb726_flash_data,
175 },
176 .resource = csb726_flash_resources,
177 .num_resources = ARRAY_SIZE(csb726_flash_resources),
178 };
179
180 static struct resource csb726_sm501_resources[] = {
181 {
182 .start = PXA_CS4_PHYS,
183 .end = PXA_CS4_PHYS + SZ_8M - 1,
184 .flags = IORESOURCE_MEM,
185 .name = "sm501-localmem",
186 },
187 {
188 .start = PXA_CS4_PHYS + SZ_64M - SZ_2M,
189 .end = PXA_CS4_PHYS + SZ_64M - 1,
190 .flags = IORESOURCE_MEM,
191 .name = "sm501-regs",
192 },
193 {
194 .start = CSB726_IRQ_SM501,
195 .end = CSB726_IRQ_SM501,
196 .flags = IORESOURCE_IRQ,
197 },
198 };
199
200 static struct sm501_initdata csb726_sm501_initdata = {
201 /* .devices = SM501_USE_USB_HOST, */
202 .devices = SM501_USE_USB_HOST | SM501_USE_UART0 | SM501_USE_UART1,
203 };
204
205 static struct sm501_platdata csb726_sm501_platdata = {
206 .init = &csb726_sm501_initdata,
207 };
208
209 static struct platform_device csb726_sm501 = {
210 .name = "sm501",
211 .id = 0,
212 .num_resources = ARRAY_SIZE(csb726_sm501_resources),
213 .resource = csb726_sm501_resources,
214 .dev = {
215 .platform_data = &csb726_sm501_platdata,
216 },
217 };
218
219 static struct resource csb726_lan_resources[] = {
220 {
221 .start = PXA_CS3_PHYS,
222 .end = PXA_CS3_PHYS + SZ_64K - 1,
223 .flags = IORESOURCE_MEM,
224 },
225 {
226 .start = CSB726_IRQ_LAN,
227 .end = CSB726_IRQ_LAN,
228 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
229 },
230 };
231
232 struct smsc911x_platform_config csb726_lan_config = {
233 .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
234 .irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
235 .flags = SMSC911X_USE_32BIT,
236 .phy_interface = PHY_INTERFACE_MODE_MII,
237 };
238
239
240 static struct platform_device csb726_lan = {
241 .name = "smsc911x",
242 .id = -1,
243 .num_resources = ARRAY_SIZE(csb726_lan_resources),
244 .resource = csb726_lan_resources,
245 .dev = {
246 .platform_data = &csb726_lan_config,
247 },
248 };
249
250 static struct platform_device *devices[] __initdata = {
251 &csb726_flash,
252 &csb726_sm501,
253 &csb726_lan,
254 };
255
csb726_init(void)256 static void __init csb726_init(void)
257 {
258 pxa2xx_mfp_config(ARRAY_AND_SIZE(csb726_pin_config));
259 /* __raw_writel(0x7ffc3ffc, MSC1); *//* LAN9215/EXP_CS */
260 /* __raw_writel(0x06697ff4, MSC2); *//* none/SM501 */
261 __raw_writel((__raw_readl(MSC2) & ~0xffff) | 0x7ff4, MSC2); /* SM501 */
262
263 pxa_set_ffuart_info(NULL);
264 pxa_set_btuart_info(NULL);
265 pxa_set_stuart_info(NULL);
266 pxa_set_i2c_info(NULL);
267 pxa27x_set_i2c_power_info(NULL);
268 pxa_set_mci_info(&csb726_mci);
269 pxa_set_ohci_info(&csb726_ohci_platform_data);
270 pxa_set_ac97_info(NULL);
271
272 platform_add_devices(devices, ARRAY_SIZE(devices));
273 }
274
275 MACHINE_START(CSB726, "Cogent CSB726")
276 .boot_params = 0xa0000100,
277 .map_io = pxa27x_map_io,
278 .init_irq = pxa27x_init_irq,
279 .init_machine = csb726_init,
280 .timer = &pxa_timer,
281 MACHINE_END
282