1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * linux/arch/arm/mach-pxa/mxm8x10.c
4 *
5 * Support for the Embedian MXM-8x10 Computer on Module
6 *
7 * Copyright (C) 2006 Marvell International Ltd.
8 * Copyright (C) 2009 Embedian Inc.
9 * Copyright (C) 2009 TMT Services & Supplies (Pty) Ltd.
10 *
11 * 2007-09-04: eric miao <eric.y.miao@gmail.com>
12 * rewrite to align with latest kernel
13 *
14 * 2010-01-09: Edwin Peer <epeer@tmtservices.co.za>
15 * Hennie van der Merwe <hvdmerwe@tmtservices.co.za>
16 * rework for upstream merge
17 */
18
19 #include <linux/serial_8250.h>
20 #include <linux/dm9000.h>
21 #include <linux/gpio/machine.h>
22 #include <linux/platform_data/i2c-pxa.h>
23
24 #include <linux/platform_data/mtd-nand-pxa3xx.h>
25
26 #include <linux/platform_data/video-pxafb.h>
27 #include <linux/platform_data/mmc-pxamci.h>
28 #include <linux/platform_data/usb-ohci-pxa27x.h>
29 #include "pxa320.h"
30
31 #include "mxm8x10.h"
32
33 #include "devices.h"
34 #include "generic.h"
35
36 /* GPIO pin definition
37
38 External device stuff - Leave unconfigured for now...
39 ---------------------
40 GPIO0 - DREQ (External DMA Request)
41 GPIO3 - nGCS2 (External Chip Select) Where is nGCS0; nGCS1; nGCS4; nGCS5 ?
42 GPIO4 - nGCS3
43 GPIO15 - EXT_GPIO1
44 GPIO16 - EXT_GPIO2
45 GPIO17 - EXT_GPIO3
46 GPIO24 - EXT_GPIO4
47 GPIO25 - EXT_GPIO5
48 GPIO26 - EXT_GPIO6
49 GPIO27 - EXT_GPIO7
50 GPIO28 - EXT_GPIO8
51 GPIO29 - EXT_GPIO9
52 GPIO30 - EXT_GPIO10
53 GPIO31 - EXT_GPIO11
54 GPIO57 - EXT_GPIO12
55 GPIO74 - EXT_IRQ1
56 GPIO75 - EXT_IRQ2
57 GPIO76 - EXT_IRQ3
58 GPIO77 - EXT_IRQ4
59 GPIO78 - EXT_IRQ5
60 GPIO79 - EXT_IRQ6
61 GPIO80 - EXT_IRQ7
62 GPIO81 - EXT_IRQ8
63 GPIO87 - VCCIO_PWREN (External Device PWREN)
64
65 Dallas 1-Wire - Leave unconfigured for now...
66 -------------
67 GPIO0_2 - DS - 1Wire
68
69 Ethernet
70 --------
71 GPIO1 - DM9000 PWR
72 GPIO9 - DM9K_nIRQ
73 GPIO36 - DM9K_RESET
74
75 Keypad - Leave unconfigured by for now...
76 ------
77 GPIO1_2 - KP_DKIN0
78 GPIO5_2 - KP_MKOUT7
79 GPIO82 - KP_DKIN1
80 GPIO85 - KP_DKIN2
81 GPIO86 - KP_DKIN3
82 GPIO113 - KP_MKIN0
83 GPIO114 - KP_MKIN1
84 GPIO115 - KP_MKIN2
85 GPIO116 - KP_MKIN3
86 GPIO117 - KP_MKIN4
87 GPIO118 - KP_MKIN5
88 GPIO119 - KP_MKIN6
89 GPIO120 - KP_MKIN7
90 GPIO121 - KP_MKOUT0
91 GPIO122 - KP_MKOUT1
92 GPIO122 - KP_MKOUT2
93 GPIO123 - KP_MKOUT3
94 GPIO124 - KP_MKOUT4
95 GPIO125 - KP_MKOUT5
96 GPIO127 - KP_MKOUT6
97
98 Data Bus - Leave unconfigured for now...
99 --------
100 GPIO2 - nWait (Data Bus)
101
102 USB Device
103 ----------
104 GPIO4_2 - USBD_PULLUP
105 GPIO10 - UTM_CLK (USB Device UTM Clk)
106 GPIO49 - USB 2.0 Device UTM_DATA0
107 GPIO50 - USB 2.0 Device UTM_DATA1
108 GPIO51 - USB 2.0 Device UTM_DATA2
109 GPIO52 - USB 2.0 Device UTM_DATA3
110 GPIO53 - USB 2.0 Device UTM_DATA4
111 GPIO54 - USB 2.0 Device UTM_DATA5
112 GPIO55 - USB 2.0 Device UTM_DATA6
113 GPIO56 - USB 2.0 Device UTM_DATA7
114 GPIO58 - UTM_RXVALID (USB 2.0 Device)
115 GPIO59 - UTM_RXACTIVE (USB 2.0 Device)
116 GPIO60 - UTM_RXERROR
117 GPIO61 - UTM_OPMODE0
118 GPIO62 - UTM_OPMODE1
119 GPIO71 - USBD_INT (USB Device?)
120 GPIO73 - UTM_TXREADY (USB 2.0 Device)
121 GPIO83 - UTM_TXVALID (USB 2.0 Device)
122 GPIO98 - UTM_RESET (USB 2.0 device)
123 GPIO99 - UTM_XCVR_SELECT
124 GPIO100 - UTM_TERM_SELECT
125 GPIO101 - UTM_SUSPENDM_X
126 GPIO102 - UTM_LINESTATE0
127 GPIO103 - UTM_LINESTATE1
128
129 Card-Bus Interface - Leave unconfigured for now...
130 ------------------
131 GPIO5 - nPIOR (I/O space output enable)
132 GPIO6 - nPIOW (I/O space write enable)
133 GPIO7 - nIOS16 (Input from I/O space telling size of data bus)
134 GPIO8 - nPWAIT (Input for inserting wait states)
135
136 LCD
137 ---
138 GPIO6_2 - LDD0
139 GPIO7_2 - LDD1
140 GPIO8_2 - LDD2
141 GPIO9_2 - LDD3
142 GPIO11_2 - LDD5
143 GPIO12_2 - LDD6
144 GPIO13_2 - LDD7
145 GPIO14_2 - VSYNC
146 GPIO15_2 - HSYNC
147 GPIO16_2 - VCLK
148 GPIO17_2 - HCLK
149 GPIO18_2 - VDEN
150 GPIO63 - LDD8 (CPU LCD)
151 GPIO64 - LDD9 (CPU LCD)
152 GPIO65 - LDD10 (CPU LCD)
153 GPIO66 - LDD11 (CPU LCD)
154 GPIO67 - LDD12 (CPU LCD)
155 GPIO68 - LDD13 (CPU LCD)
156 GPIO69 - LDD14 (CPU LCD)
157 GPIO70 - LDD15 (CPU LCD)
158 GPIO88 - VCCLCD_PWREN (LCD Panel PWREN)
159 GPIO97 - BACKLIGHT_EN
160 GPIO104 - LCD_PWREN
161
162 PWM - Leave unconfigured for now...
163 ---
164 GPIO11 - PWM0
165 GPIO12 - PWM1
166 GPIO13 - PWM2
167 GPIO14 - PWM3
168
169 SD-CARD
170 -------
171 GPIO18 - SDDATA0
172 GPIO19 - SDDATA1
173 GPIO20 - SDDATA2
174 GPIO21 - SDDATA3
175 GPIO22 - SDCLK
176 GPIO23 - SDCMD
177 GPIO72 - SD_WP
178 GPIO84 - SD_nIRQ_CD (SD-Card)
179
180 I2C
181 ---
182 GPIO32 - I2CSCL
183 GPIO33 - I2CSDA
184
185 AC97
186 ----
187 GPIO35 - AC97_SDATA_IN
188 GPIO37 - AC97_SDATA_OUT
189 GPIO38 - AC97_SYNC
190 GPIO39 - AC97_BITCLK
191 GPIO40 - AC97_nRESET
192
193 UART1
194 -----
195 GPIO41 - UART_RXD1
196 GPIO42 - UART_TXD1
197 GPIO43 - UART_CTS1
198 GPIO44 - UART_DCD1
199 GPIO45 - UART_DSR1
200 GPIO46 - UART_nRI1
201 GPIO47 - UART_DTR1
202 GPIO48 - UART_RTS1
203
204 UART2
205 -----
206 GPIO109 - RTS2
207 GPIO110 - RXD2
208 GPIO111 - TXD2
209 GPIO112 - nCTS2
210
211 UART3
212 -----
213 GPIO105 - nCTS3
214 GPIO106 - nRTS3
215 GPIO107 - TXD3
216 GPIO108 - RXD3
217
218 SSP3 - Leave unconfigured for now...
219 ----
220 GPIO89 - SSP3_CLK
221 GPIO90 - SSP3_SFRM
222 GPIO91 - SSP3_TXD
223 GPIO92 - SSP3_RXD
224
225 SSP4
226 GPIO93 - SSP4_CLK
227 GPIO94 - SSP4_SFRM
228 GPIO95 - SSP4_TXD
229 GPIO96 - SSP4_RXD
230 */
231
232 static mfp_cfg_t mfp_cfg[] __initdata = {
233 /* USB */
234 GPIO10_UTM_CLK,
235 GPIO49_U2D_PHYDATA_0,
236 GPIO50_U2D_PHYDATA_1,
237 GPIO51_U2D_PHYDATA_2,
238 GPIO52_U2D_PHYDATA_3,
239 GPIO53_U2D_PHYDATA_4,
240 GPIO54_U2D_PHYDATA_5,
241 GPIO55_U2D_PHYDATA_6,
242 GPIO56_U2D_PHYDATA_7,
243 GPIO58_UTM_RXVALID,
244 GPIO59_UTM_RXACTIVE,
245 GPIO60_U2D_RXERROR,
246 GPIO61_U2D_OPMODE0,
247 GPIO62_U2D_OPMODE1,
248 GPIO71_GPIO, /* USBD_INT */
249 GPIO73_UTM_TXREADY,
250 GPIO83_U2D_TXVALID,
251 GPIO98_U2D_RESET,
252 GPIO99_U2D_XCVR_SEL,
253 GPIO100_U2D_TERM_SEL,
254 GPIO101_U2D_SUSPEND,
255 GPIO102_UTM_LINESTATE_0,
256 GPIO103_UTM_LINESTATE_1,
257 GPIO4_2_GPIO | MFP_PULL_HIGH, /* UTM_PULLUP */
258
259 /* DM9000 */
260 GPIO1_GPIO,
261 GPIO9_GPIO,
262 GPIO36_GPIO,
263
264 /* AC97 */
265 GPIO35_AC97_SDATA_IN_0,
266 GPIO37_AC97_SDATA_OUT,
267 GPIO38_AC97_SYNC,
268 GPIO39_AC97_BITCLK,
269 GPIO40_AC97_nACRESET,
270
271 /* UARTS */
272 GPIO41_UART1_RXD,
273 GPIO42_UART1_TXD,
274 GPIO43_UART1_CTS,
275 GPIO44_UART1_DCD,
276 GPIO45_UART1_DSR,
277 GPIO46_UART1_RI,
278 GPIO47_UART1_DTR,
279 GPIO48_UART1_RTS,
280
281 GPIO109_UART2_RTS,
282 GPIO110_UART2_RXD,
283 GPIO111_UART2_TXD,
284 GPIO112_UART2_CTS,
285
286 GPIO105_UART3_CTS,
287 GPIO106_UART3_RTS,
288 GPIO107_UART3_TXD,
289 GPIO108_UART3_RXD,
290
291 GPIO78_GPIO,
292 GPIO79_GPIO,
293 GPIO80_GPIO,
294 GPIO81_GPIO,
295
296 /* I2C */
297 GPIO32_I2C_SCL,
298 GPIO33_I2C_SDA,
299
300 /* MMC */
301 GPIO18_MMC1_DAT0,
302 GPIO19_MMC1_DAT1,
303 GPIO20_MMC1_DAT2,
304 GPIO21_MMC1_DAT3,
305 GPIO22_MMC1_CLK,
306 GPIO23_MMC1_CMD,
307 GPIO72_GPIO | MFP_PULL_HIGH, /* Card Detect */
308 GPIO84_GPIO | MFP_PULL_LOW, /* Write Protect */
309
310 /* IRQ */
311 GPIO74_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ1 */
312 GPIO75_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ2 */
313 GPIO76_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ3 */
314 GPIO77_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ4 */
315 GPIO78_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ5 */
316 GPIO79_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ6 */
317 GPIO80_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ7 */
318 GPIO81_GPIO | MFP_LPM_EDGE_RISE /* EXT_IRQ8 */
319 };
320
321 /* MMC/MCI Support */
322 #if defined(CONFIG_MMC)
323 static struct pxamci_platform_data mxm_8x10_mci_platform_data = {
324 .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
325 .detect_delay_ms = 10,
326 };
327
328 static struct gpiod_lookup_table mxm_8x10_mci_gpio_table = {
329 .dev_id = "pxa2xx-mci.0",
330 .table = {
331 /* Card detect on GPIO 72 */
332 GPIO_LOOKUP("gpio-pxa", MXM_8X10_SD_nCD,
333 "cd", GPIO_ACTIVE_LOW),
334 /* Write protect on GPIO 84 */
335 GPIO_LOOKUP("gpio-pxa", MXM_8X10_SD_WP,
336 "wp", GPIO_ACTIVE_LOW),
337 { },
338 },
339 };
340
341 void __init mxm_8x10_mmc_init(void)
342 {
343 gpiod_add_lookup_table(&mxm_8x10_mci_gpio_table);
344 pxa_set_mci_info(&mxm_8x10_mci_platform_data);
345 }
346 #endif
347
348 /* USB Open Host Controller Interface */
349 static struct pxaohci_platform_data mxm_8x10_ohci_platform_data = {
350 .port_mode = PMM_NPS_MODE,
351 .flags = ENABLE_PORT_ALL
352 };
353
354 void __init mxm_8x10_usb_host_init(void)
355 {
356 pxa_set_ohci_info(&mxm_8x10_ohci_platform_data);
357 }
358
359 /* AC97 Sound Support */
360 static struct platform_device mxm_8x10_ac97_device = {
361 .name = "pxa2xx-ac97"
362 };
363
364 void __init mxm_8x10_ac97_init(void)
365 {
366 platform_device_register(&mxm_8x10_ac97_device);
367 }
368
369 /* NAND flash Support */
370 #if IS_ENABLED(CONFIG_MTD_NAND_MARVELL)
371 #define NAND_BLOCK_SIZE SZ_128K
372 #define NB(x) (NAND_BLOCK_SIZE * (x))
373 static struct mtd_partition mxm_8x10_nand_partitions[] = {
374 [0] = {
375 .name = "boot",
376 .size = NB(0x002),
377 .offset = NB(0x000),
378 .mask_flags = MTD_WRITEABLE
379 },
380 [1] = {
381 .name = "kernel",
382 .size = NB(0x010),
383 .offset = NB(0x002),
384 .mask_flags = MTD_WRITEABLE
385 },
386 [2] = {
387 .name = "root",
388 .size = NB(0x36c),
389 .offset = NB(0x012)
390 },
391 [3] = {
392 .name = "bbt",
393 .size = NB(0x082),
394 .offset = NB(0x37e),
395 .mask_flags = MTD_WRITEABLE
396 }
397 };
398
399 static struct pxa3xx_nand_platform_data mxm_8x10_nand_info = {
400 .keep_config = 1,
401 .parts = mxm_8x10_nand_partitions,
402 .nr_parts = ARRAY_SIZE(mxm_8x10_nand_partitions)
403 };
404
405 static void __init mxm_8x10_nand_init(void)
406 {
407 pxa3xx_set_nand_info(&mxm_8x10_nand_info);
408 }
409 #else
410 static inline void mxm_8x10_nand_init(void) {}
411 #endif /* IS_ENABLED(CONFIG_MTD_NAND_MARVELL) */
412
413 /* Ethernet support: Davicom DM9000 */
414 static struct resource dm9k_resources[] = {
415 [0] = {
416 .start = MXM_8X10_ETH_PHYS + 0x300,
417 .end = MXM_8X10_ETH_PHYS + 0x300,
418 .flags = IORESOURCE_MEM
419 },
420 [1] = {
421 .start = MXM_8X10_ETH_PHYS + 0x308,
422 .end = MXM_8X10_ETH_PHYS + 0x308,
423 .flags = IORESOURCE_MEM
424 },
425 [2] = {
426 .start = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO9)),
427 .end = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO9)),
428 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE
429 }
430 };
431
432 static struct dm9000_plat_data dm9k_plat_data = {
433 .flags = DM9000_PLATF_16BITONLY
434 };
435
436 static struct platform_device dm9k_device = {
437 .name = "dm9000",
438 .id = 0,
439 .num_resources = ARRAY_SIZE(dm9k_resources),
440 .resource = dm9k_resources,
441 .dev = {
442 .platform_data = &dm9k_plat_data
443 }
444 };
445
446 static void __init mxm_8x10_ethernet_init(void)
447 {
448 platform_device_register(&dm9k_device);
449 }
450
451 /* PXA UARTs */
452 static void __init mxm_8x10_uarts_init(void)
453 {
454 pxa_set_ffuart_info(NULL);
455 pxa_set_btuart_info(NULL);
456 pxa_set_stuart_info(NULL);
457 }
458
459 /* I2C and Real Time Clock */
460 static struct i2c_board_info __initdata mxm_8x10_i2c_devices[] = {
461 {
462 I2C_BOARD_INFO("ds1337", 0x68)
463 }
464 };
465
466 static void __init mxm_8x10_i2c_init(void)
467 {
468 i2c_register_board_info(0, mxm_8x10_i2c_devices,
469 ARRAY_SIZE(mxm_8x10_i2c_devices));
470 pxa_set_i2c_info(NULL);
471 }
472
473 void __init mxm_8x10_barebones_init(void)
474 {
475 pxa3xx_mfp_config(ARRAY_AND_SIZE(mfp_cfg));
476
477 mxm_8x10_uarts_init();
478 mxm_8x10_nand_init();
479 mxm_8x10_i2c_init();
480 mxm_8x10_ethernet_init();
481 }