1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Support for Cogent CSB726
4 *
5 * Copyright (c) 2008 Dmitry Eremin-Solenikov
6 */
7 #include <linux/kernel.h>
8 #include <linux/init.h>
9 #include <linux/io.h>
10 #include <linux/gpio/machine.h>
11 #include <linux/platform_device.h>
12 #include <linux/mtd/physmap.h>
13 #include <linux/mtd/partitions.h>
14 #include <linux/sm501.h>
15 #include <linux/smsc911x.h>
16 #include <linux/platform_data/i2c-pxa.h>
17
18 #include <asm/mach-types.h>
19 #include <asm/mach/arch.h>
20 #include "csb726.h"
21 #include "pxa27x.h"
22 #include <linux/platform_data/mmc-pxamci.h>
23 #include <linux/platform_data/usb-ohci-pxa27x.h>
24 #include <mach/audio.h>
25 #include <mach/smemc.h>
26
27 #include "generic.h"
28 #include "devices.h"
29
30 /*
31 * n/a: 2, 5, 6, 7, 8, 23, 24, 25, 26, 27, 87, 88, 89,
32 * nu: 58 -- 77, 90, 91, 93, 102, 105-108, 114-116,
33 * XXX: 21,
34 * XXX: 79 CS_3 for LAN9215 or PSKTSEL on R2, R3
35 * XXX: 33 CS_5 for LAN9215 on R1
36 */
37
38 static unsigned long csb726_pin_config[] = {
39 GPIO78_nCS_2, /* EXP_CS */
40 GPIO79_nCS_3, /* SMSC9215 */
41 GPIO80_nCS_4, /* SM501 */
42
43 GPIO52_GPIO, /* #SMSC9251 int */
44 GPIO53_GPIO, /* SM501 int */
45
46 GPIO1_GPIO, /* GPIO0 */
47 GPIO11_GPIO, /* GPIO1 */
48 GPIO9_GPIO, /* GPIO2 */
49 GPIO10_GPIO, /* GPIO3 */
50 GPIO16_PWM0_OUT, /* or GPIO4 */
51 GPIO17_PWM1_OUT, /* or GPIO5 */
52 GPIO94_GPIO, /* GPIO6 */
53 GPIO95_GPIO, /* GPIO7 */
54 GPIO96_GPIO, /* GPIO8 */
55 GPIO97_GPIO, /* GPIO9 */
56 GPIO15_GPIO, /* EXP_IRQ */
57 GPIO18_RDY, /* EXP_WAIT */
58
59 GPIO0_GPIO, /* PWR_INT */
60 GPIO104_GPIO, /* PWR_OFF */
61
62 GPIO12_GPIO, /* touch irq */
63
64 GPIO13_SSP2_TXD,
65 GPIO14_SSP2_SFRM,
66 MFP_CFG_OUT(GPIO19, AF1, DRIVE_LOW),/* SSP2_SYSCLK */
67 GPIO22_SSP2_SCLK,
68
69 GPIO81_SSP3_TXD,
70 GPIO82_SSP3_RXD,
71 GPIO83_SSP3_SFRM,
72 GPIO84_SSP3_SCLK,
73
74 GPIO20_GPIO, /* SDIO int */
75 GPIO32_MMC_CLK,
76 GPIO92_MMC_DAT_0,
77 GPIO109_MMC_DAT_1,
78 GPIO110_MMC_DAT_2,
79 GPIO111_MMC_DAT_3,
80 GPIO112_MMC_CMD,
81 GPIO100_GPIO, /* SD CD */
82 GPIO101_GPIO, /* SD WP */
83
84 GPIO28_AC97_BITCLK,
85 GPIO29_AC97_SDATA_IN_0,
86 GPIO30_AC97_SDATA_OUT,
87 GPIO31_AC97_SYNC,
88 GPIO113_AC97_nRESET,
89
90 GPIO34_FFUART_RXD,
91 GPIO35_FFUART_CTS,
92 GPIO36_FFUART_DCD,
93 GPIO37_FFUART_DSR,
94 GPIO38_FFUART_RI,
95 GPIO39_FFUART_TXD,
96 GPIO40_FFUART_DTR,
97 GPIO41_FFUART_RTS,
98
99 GPIO42_BTUART_RXD,
100 GPIO43_BTUART_TXD,
101 GPIO44_BTUART_CTS,
102 GPIO45_BTUART_RTS,
103
104 GPIO46_STUART_RXD,
105 GPIO47_STUART_TXD,
106
107 GPIO48_nPOE,
108 GPIO49_nPWE,
109 GPIO50_nPIOR,
110 GPIO51_nPIOW,
111 GPIO54_nPCE_2,
112 GPIO55_nPREG,
113 GPIO56_nPWAIT,
114 GPIO57_nIOIS16, /* maybe unused */
115 GPIO85_nPCE_1,
116 GPIO98_GPIO, /* CF IRQ */
117 GPIO99_GPIO, /* CF CD */
118 GPIO103_GPIO, /* Reset */
119
120 GPIO117_I2C_SCL,
121 GPIO118_I2C_SDA,
122 };
123
124 static struct pxamci_platform_data csb726_mci = {
125 .detect_delay_ms = 500,
126 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
127 /* FIXME setpower */
128 };
129
130 static struct gpiod_lookup_table csb726_mci_gpio_table = {
131 .dev_id = "pxa2xx-mci.0",
132 .table = {
133 /* Card detect on GPIO 100 */
134 GPIO_LOOKUP("gpio-pxa", CSB726_GPIO_MMC_DETECT,
135 "cd", GPIO_ACTIVE_LOW),
136 /* Write protect on GPIO 101 */
137 GPIO_LOOKUP("gpio-pxa", CSB726_GPIO_MMC_RO,
138 "wp", GPIO_ACTIVE_LOW),
139 { },
140 },
141 };
142
143 static struct pxaohci_platform_data csb726_ohci_platform_data = {
144 .port_mode = PMM_NPS_MODE,
145 .flags = ENABLE_PORT1 | NO_OC_PROTECTION,
146 };
147
148 static struct mtd_partition csb726_flash_partitions[] = {
149 {
150 .name = "Bootloader",
151 .offset = 0,
152 .size = CSB726_FLASH_uMON,
153 .mask_flags = MTD_WRITEABLE /* force read-only */
154 },
155 {
156 .name = "root",
157 .offset = MTDPART_OFS_APPEND,
158 .size = MTDPART_SIZ_FULL,
159 }
160 };
161
162 static struct physmap_flash_data csb726_flash_data = {
163 .width = 2,
164 .parts = csb726_flash_partitions,
165 .nr_parts = ARRAY_SIZE(csb726_flash_partitions),
166 };
167
168 static struct resource csb726_flash_resources[] = {
169 {
170 .start = PXA_CS0_PHYS,
171 .end = PXA_CS0_PHYS + CSB726_FLASH_SIZE - 1 ,
172 .flags = IORESOURCE_MEM,
173 }
174 };
175
176 static struct platform_device csb726_flash = {
177 .name = "physmap-flash",
178 .dev = {
179 .platform_data = &csb726_flash_data,
180 },
181 .resource = csb726_flash_resources,
182 .num_resources = ARRAY_SIZE(csb726_flash_resources),
183 };
184
185 static struct resource csb726_sm501_resources[] = {
186 {
187 .start = PXA_CS4_PHYS,
188 .end = PXA_CS4_PHYS + SZ_8M - 1,
189 .flags = IORESOURCE_MEM,
190 .name = "sm501-localmem",
191 },
192 {
193 .start = PXA_CS4_PHYS + SZ_64M - SZ_2M,
194 .end = PXA_CS4_PHYS + SZ_64M - 1,
195 .flags = IORESOURCE_MEM,
196 .name = "sm501-regs",
197 },
198 {
199 .start = CSB726_IRQ_SM501,
200 .end = CSB726_IRQ_SM501,
201 .flags = IORESOURCE_IRQ,
202 },
203 };
204
205 static struct sm501_initdata csb726_sm501_initdata = {
206 /* .devices = SM501_USE_USB_HOST, */
207 .devices = SM501_USE_USB_HOST | SM501_USE_UART0 | SM501_USE_UART1,
208 };
209
210 static struct sm501_platdata csb726_sm501_platdata = {
211 .init = &csb726_sm501_initdata,
212 };
213
214 static struct platform_device csb726_sm501 = {
215 .name = "sm501",
216 .id = 0,
217 .num_resources = ARRAY_SIZE(csb726_sm501_resources),
218 .resource = csb726_sm501_resources,
219 .dev = {
220 .platform_data = &csb726_sm501_platdata,
221 },
222 };
223
224 static struct resource csb726_lan_resources[] = {
225 {
226 .start = PXA_CS3_PHYS,
227 .end = PXA_CS3_PHYS + SZ_64K - 1,
228 .flags = IORESOURCE_MEM,
229 },
230 {
231 .start = CSB726_IRQ_LAN,
232 .end = CSB726_IRQ_LAN,
233 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
234 },
235 };
236
237 struct smsc911x_platform_config csb726_lan_config = {
238 .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
239 .irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
240 .flags = SMSC911X_USE_32BIT,
241 .phy_interface = PHY_INTERFACE_MODE_MII,
242 };
243
244
245 static struct platform_device csb726_lan = {
246 .name = "smsc911x",
247 .id = -1,
248 .num_resources = ARRAY_SIZE(csb726_lan_resources),
249 .resource = csb726_lan_resources,
250 .dev = {
251 .platform_data = &csb726_lan_config,
252 },
253 };
254
255 static struct platform_device *devices[] __initdata = {
256 &csb726_flash,
257 &csb726_sm501,
258 &csb726_lan,
259 };
260
csb726_init(void)261 static void __init csb726_init(void)
262 {
263 pxa2xx_mfp_config(ARRAY_AND_SIZE(csb726_pin_config));
264 /* __raw_writel(0x7ffc3ffc, MSC1); *//* LAN9215/EXP_CS */
265 /* __raw_writel(0x06697ff4, MSC2); *//* none/SM501 */
266 __raw_writel((__raw_readl(MSC2) & ~0xffff) | 0x7ff4, MSC2); /* SM501 */
267
268 pxa_set_ffuart_info(NULL);
269 pxa_set_btuart_info(NULL);
270 pxa_set_stuart_info(NULL);
271 pxa_set_i2c_info(NULL);
272 pxa27x_set_i2c_power_info(NULL);
273 gpiod_add_lookup_table(&csb726_mci_gpio_table);
274 pxa_set_mci_info(&csb726_mci);
275 pxa_set_ohci_info(&csb726_ohci_platform_data);
276 pxa_set_ac97_info(NULL);
277
278 platform_add_devices(devices, ARRAY_SIZE(devices));
279 }
280
281 MACHINE_START(CSB726, "Cogent CSB726")
282 .atag_offset = 0x100,
283 .map_io = pxa27x_map_io,
284 .nr_irqs = PXA_NR_IRQS,
285 .init_irq = pxa27x_init_irq,
286 .handle_irq = pxa27x_handle_irq,
287 .init_machine = csb726_init,
288 .init_time = pxa_timer_init,
289 .restart = pxa_restart,
290 MACHINE_END
291