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 <linux/platform_data/asoc-pxa.h>
30 #include "pxa320.h"
31
32 #include "mxm8x10.h"
33
34 #include "devices.h"
35 #include "generic.h"
36
37 /* GPIO pin definition
38
39 External device stuff - Leave unconfigured for now...
40 ---------------------
41 GPIO0 - DREQ (External DMA Request)
42 GPIO3 - nGCS2 (External Chip Select) Where is nGCS0; nGCS1; nGCS4; nGCS5 ?
43 GPIO4 - nGCS3
44 GPIO15 - EXT_GPIO1
45 GPIO16 - EXT_GPIO2
46 GPIO17 - EXT_GPIO3
47 GPIO24 - EXT_GPIO4
48 GPIO25 - EXT_GPIO5
49 GPIO26 - EXT_GPIO6
50 GPIO27 - EXT_GPIO7
51 GPIO28 - EXT_GPIO8
52 GPIO29 - EXT_GPIO9
53 GPIO30 - EXT_GPIO10
54 GPIO31 - EXT_GPIO11
55 GPIO57 - EXT_GPIO12
56 GPIO74 - EXT_IRQ1
57 GPIO75 - EXT_IRQ2
58 GPIO76 - EXT_IRQ3
59 GPIO77 - EXT_IRQ4
60 GPIO78 - EXT_IRQ5
61 GPIO79 - EXT_IRQ6
62 GPIO80 - EXT_IRQ7
63 GPIO81 - EXT_IRQ8
64 GPIO87 - VCCIO_PWREN (External Device PWREN)
65
66 Dallas 1-Wire - Leave unconfigured for now...
67 -------------
68 GPIO0_2 - DS - 1Wire
69
70 Ethernet
71 --------
72 GPIO1 - DM9000 PWR
73 GPIO9 - DM9K_nIRQ
74 GPIO36 - DM9K_RESET
75
76 Keypad - Leave unconfigured by for now...
77 ------
78 GPIO1_2 - KP_DKIN0
79 GPIO5_2 - KP_MKOUT7
80 GPIO82 - KP_DKIN1
81 GPIO85 - KP_DKIN2
82 GPIO86 - KP_DKIN3
83 GPIO113 - KP_MKIN0
84 GPIO114 - KP_MKIN1
85 GPIO115 - KP_MKIN2
86 GPIO116 - KP_MKIN3
87 GPIO117 - KP_MKIN4
88 GPIO118 - KP_MKIN5
89 GPIO119 - KP_MKIN6
90 GPIO120 - KP_MKIN7
91 GPIO121 - KP_MKOUT0
92 GPIO122 - KP_MKOUT1
93 GPIO122 - KP_MKOUT2
94 GPIO123 - KP_MKOUT3
95 GPIO124 - KP_MKOUT4
96 GPIO125 - KP_MKOUT5
97 GPIO127 - KP_MKOUT6
98
99 Data Bus - Leave unconfigured for now...
100 --------
101 GPIO2 - nWait (Data Bus)
102
103 USB Device
104 ----------
105 GPIO4_2 - USBD_PULLUP
106 GPIO10 - UTM_CLK (USB Device UTM Clk)
107 GPIO49 - USB 2.0 Device UTM_DATA0
108 GPIO50 - USB 2.0 Device UTM_DATA1
109 GPIO51 - USB 2.0 Device UTM_DATA2
110 GPIO52 - USB 2.0 Device UTM_DATA3
111 GPIO53 - USB 2.0 Device UTM_DATA4
112 GPIO54 - USB 2.0 Device UTM_DATA5
113 GPIO55 - USB 2.0 Device UTM_DATA6
114 GPIO56 - USB 2.0 Device UTM_DATA7
115 GPIO58 - UTM_RXVALID (USB 2.0 Device)
116 GPIO59 - UTM_RXACTIVE (USB 2.0 Device)
117 GPIO60 - UTM_RXERROR
118 GPIO61 - UTM_OPMODE0
119 GPIO62 - UTM_OPMODE1
120 GPIO71 - USBD_INT (USB Device?)
121 GPIO73 - UTM_TXREADY (USB 2.0 Device)
122 GPIO83 - UTM_TXVALID (USB 2.0 Device)
123 GPIO98 - UTM_RESET (USB 2.0 device)
124 GPIO99 - UTM_XCVR_SELECT
125 GPIO100 - UTM_TERM_SELECT
126 GPIO101 - UTM_SUSPENDM_X
127 GPIO102 - UTM_LINESTATE0
128 GPIO103 - UTM_LINESTATE1
129
130 Card-Bus Interface - Leave unconfigured for now...
131 ------------------
132 GPIO5 - nPIOR (I/O space output enable)
133 GPIO6 - nPIOW (I/O space write enable)
134 GPIO7 - nIOS16 (Input from I/O space telling size of data bus)
135 GPIO8 - nPWAIT (Input for inserting wait states)
136
137 LCD
138 ---
139 GPIO6_2 - LDD0
140 GPIO7_2 - LDD1
141 GPIO8_2 - LDD2
142 GPIO9_2 - LDD3
143 GPIO11_2 - LDD5
144 GPIO12_2 - LDD6
145 GPIO13_2 - LDD7
146 GPIO14_2 - VSYNC
147 GPIO15_2 - HSYNC
148 GPIO16_2 - VCLK
149 GPIO17_2 - HCLK
150 GPIO18_2 - VDEN
151 GPIO63 - LDD8 (CPU LCD)
152 GPIO64 - LDD9 (CPU LCD)
153 GPIO65 - LDD10 (CPU LCD)
154 GPIO66 - LDD11 (CPU LCD)
155 GPIO67 - LDD12 (CPU LCD)
156 GPIO68 - LDD13 (CPU LCD)
157 GPIO69 - LDD14 (CPU LCD)
158 GPIO70 - LDD15 (CPU LCD)
159 GPIO88 - VCCLCD_PWREN (LCD Panel PWREN)
160 GPIO97 - BACKLIGHT_EN
161 GPIO104 - LCD_PWREN
162
163 PWM - Leave unconfigured for now...
164 ---
165 GPIO11 - PWM0
166 GPIO12 - PWM1
167 GPIO13 - PWM2
168 GPIO14 - PWM3
169
170 SD-CARD
171 -------
172 GPIO18 - SDDATA0
173 GPIO19 - SDDATA1
174 GPIO20 - SDDATA2
175 GPIO21 - SDDATA3
176 GPIO22 - SDCLK
177 GPIO23 - SDCMD
178 GPIO72 - SD_WP
179 GPIO84 - SD_nIRQ_CD (SD-Card)
180
181 I2C
182 ---
183 GPIO32 - I2CSCL
184 GPIO33 - I2CSDA
185
186 AC97
187 ----
188 GPIO35 - AC97_SDATA_IN
189 GPIO37 - AC97_SDATA_OUT
190 GPIO38 - AC97_SYNC
191 GPIO39 - AC97_BITCLK
192 GPIO40 - AC97_nRESET
193
194 UART1
195 -----
196 GPIO41 - UART_RXD1
197 GPIO42 - UART_TXD1
198 GPIO43 - UART_CTS1
199 GPIO44 - UART_DCD1
200 GPIO45 - UART_DSR1
201 GPIO46 - UART_nRI1
202 GPIO47 - UART_DTR1
203 GPIO48 - UART_RTS1
204
205 UART2
206 -----
207 GPIO109 - RTS2
208 GPIO110 - RXD2
209 GPIO111 - TXD2
210 GPIO112 - nCTS2
211
212 UART3
213 -----
214 GPIO105 - nCTS3
215 GPIO106 - nRTS3
216 GPIO107 - TXD3
217 GPIO108 - RXD3
218
219 SSP3 - Leave unconfigured for now...
220 ----
221 GPIO89 - SSP3_CLK
222 GPIO90 - SSP3_SFRM
223 GPIO91 - SSP3_TXD
224 GPIO92 - SSP3_RXD
225
226 SSP4
227 GPIO93 - SSP4_CLK
228 GPIO94 - SSP4_SFRM
229 GPIO95 - SSP4_TXD
230 GPIO96 - SSP4_RXD
231 */
232
233 static mfp_cfg_t mfp_cfg[] __initdata = {
234 /* USB */
235 GPIO10_UTM_CLK,
236 GPIO49_U2D_PHYDATA_0,
237 GPIO50_U2D_PHYDATA_1,
238 GPIO51_U2D_PHYDATA_2,
239 GPIO52_U2D_PHYDATA_3,
240 GPIO53_U2D_PHYDATA_4,
241 GPIO54_U2D_PHYDATA_5,
242 GPIO55_U2D_PHYDATA_6,
243 GPIO56_U2D_PHYDATA_7,
244 GPIO58_UTM_RXVALID,
245 GPIO59_UTM_RXACTIVE,
246 GPIO60_U2D_RXERROR,
247 GPIO61_U2D_OPMODE0,
248 GPIO62_U2D_OPMODE1,
249 GPIO71_GPIO, /* USBD_INT */
250 GPIO73_UTM_TXREADY,
251 GPIO83_U2D_TXVALID,
252 GPIO98_U2D_RESET,
253 GPIO99_U2D_XCVR_SEL,
254 GPIO100_U2D_TERM_SEL,
255 GPIO101_U2D_SUSPEND,
256 GPIO102_UTM_LINESTATE_0,
257 GPIO103_UTM_LINESTATE_1,
258 GPIO4_2_GPIO | MFP_PULL_HIGH, /* UTM_PULLUP */
259
260 /* DM9000 */
261 GPIO1_GPIO,
262 GPIO9_GPIO,
263 GPIO36_GPIO,
264
265 /* AC97 */
266 GPIO35_AC97_SDATA_IN_0,
267 GPIO37_AC97_SDATA_OUT,
268 GPIO38_AC97_SYNC,
269 GPIO39_AC97_BITCLK,
270 GPIO40_AC97_nACRESET,
271
272 /* UARTS */
273 GPIO41_UART1_RXD,
274 GPIO42_UART1_TXD,
275 GPIO43_UART1_CTS,
276 GPIO44_UART1_DCD,
277 GPIO45_UART1_DSR,
278 GPIO46_UART1_RI,
279 GPIO47_UART1_DTR,
280 GPIO48_UART1_RTS,
281
282 GPIO109_UART2_RTS,
283 GPIO110_UART2_RXD,
284 GPIO111_UART2_TXD,
285 GPIO112_UART2_CTS,
286
287 GPIO105_UART3_CTS,
288 GPIO106_UART3_RTS,
289 GPIO107_UART3_TXD,
290 GPIO108_UART3_RXD,
291
292 GPIO78_GPIO,
293 GPIO79_GPIO,
294 GPIO80_GPIO,
295 GPIO81_GPIO,
296
297 /* I2C */
298 GPIO32_I2C_SCL,
299 GPIO33_I2C_SDA,
300
301 /* MMC */
302 GPIO18_MMC1_DAT0,
303 GPIO19_MMC1_DAT1,
304 GPIO20_MMC1_DAT2,
305 GPIO21_MMC1_DAT3,
306 GPIO22_MMC1_CLK,
307 GPIO23_MMC1_CMD,
308 GPIO72_GPIO | MFP_PULL_HIGH, /* Card Detect */
309 GPIO84_GPIO | MFP_PULL_LOW, /* Write Protect */
310
311 /* IRQ */
312 GPIO74_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ1 */
313 GPIO75_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ2 */
314 GPIO76_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ3 */
315 GPIO77_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ4 */
316 GPIO78_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ5 */
317 GPIO79_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ6 */
318 GPIO80_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ7 */
319 GPIO81_GPIO | MFP_LPM_EDGE_RISE /* EXT_IRQ8 */
320 };
321
322 /* MMC/MCI Support */
323 #if defined(CONFIG_MMC)
324 static struct pxamci_platform_data mxm_8x10_mci_platform_data = {
325 .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
326 .detect_delay_ms = 10,
327 };
328
329 static struct gpiod_lookup_table mxm_8x10_mci_gpio_table = {
330 .dev_id = "pxa2xx-mci.0",
331 .table = {
332 /* Card detect on GPIO 72 */
333 GPIO_LOOKUP("gpio-pxa", MXM_8X10_SD_nCD,
334 "cd", GPIO_ACTIVE_LOW),
335 /* Write protect on GPIO 84 */
336 GPIO_LOOKUP("gpio-pxa", MXM_8X10_SD_WP,
337 "wp", GPIO_ACTIVE_LOW),
338 { },
339 },
340 };
341
mxm_8x10_mmc_init(void)342 void __init mxm_8x10_mmc_init(void)
343 {
344 gpiod_add_lookup_table(&mxm_8x10_mci_gpio_table);
345 pxa_set_mci_info(&mxm_8x10_mci_platform_data);
346 }
347 #endif
348
349 /* USB Open Host Controller Interface */
350 static struct pxaohci_platform_data mxm_8x10_ohci_platform_data = {
351 .port_mode = PMM_NPS_MODE,
352 .flags = ENABLE_PORT_ALL
353 };
354
mxm_8x10_usb_host_init(void)355 void __init mxm_8x10_usb_host_init(void)
356 {
357 pxa_set_ohci_info(&mxm_8x10_ohci_platform_data);
358 }
359
mxm_8x10_ac97_init(void)360 void __init mxm_8x10_ac97_init(void)
361 {
362 pxa_set_ac97_info(NULL);
363 }
364
365 /* NAND flash Support */
366 #if IS_ENABLED(CONFIG_MTD_NAND_MARVELL)
367 #define NAND_BLOCK_SIZE SZ_128K
368 #define NB(x) (NAND_BLOCK_SIZE * (x))
369 static struct mtd_partition mxm_8x10_nand_partitions[] = {
370 [0] = {
371 .name = "boot",
372 .size = NB(0x002),
373 .offset = NB(0x000),
374 .mask_flags = MTD_WRITEABLE
375 },
376 [1] = {
377 .name = "kernel",
378 .size = NB(0x010),
379 .offset = NB(0x002),
380 .mask_flags = MTD_WRITEABLE
381 },
382 [2] = {
383 .name = "root",
384 .size = NB(0x36c),
385 .offset = NB(0x012)
386 },
387 [3] = {
388 .name = "bbt",
389 .size = NB(0x082),
390 .offset = NB(0x37e),
391 .mask_flags = MTD_WRITEABLE
392 }
393 };
394
395 static struct pxa3xx_nand_platform_data mxm_8x10_nand_info = {
396 .keep_config = 1,
397 .parts = mxm_8x10_nand_partitions,
398 .nr_parts = ARRAY_SIZE(mxm_8x10_nand_partitions)
399 };
400
mxm_8x10_nand_init(void)401 static void __init mxm_8x10_nand_init(void)
402 {
403 pxa3xx_set_nand_info(&mxm_8x10_nand_info);
404 }
405 #else
mxm_8x10_nand_init(void)406 static inline void mxm_8x10_nand_init(void) {}
407 #endif /* IS_ENABLED(CONFIG_MTD_NAND_MARVELL) */
408
409 /* Ethernet support: Davicom DM9000 */
410 static struct resource dm9k_resources[] = {
411 [0] = {
412 .start = MXM_8X10_ETH_PHYS + 0x300,
413 .end = MXM_8X10_ETH_PHYS + 0x300,
414 .flags = IORESOURCE_MEM
415 },
416 [1] = {
417 .start = MXM_8X10_ETH_PHYS + 0x308,
418 .end = MXM_8X10_ETH_PHYS + 0x308,
419 .flags = IORESOURCE_MEM
420 },
421 [2] = {
422 .start = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO9)),
423 .end = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO9)),
424 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE
425 }
426 };
427
428 static struct dm9000_plat_data dm9k_plat_data = {
429 .flags = DM9000_PLATF_16BITONLY
430 };
431
432 static struct platform_device dm9k_device = {
433 .name = "dm9000",
434 .id = 0,
435 .num_resources = ARRAY_SIZE(dm9k_resources),
436 .resource = dm9k_resources,
437 .dev = {
438 .platform_data = &dm9k_plat_data
439 }
440 };
441
mxm_8x10_ethernet_init(void)442 static void __init mxm_8x10_ethernet_init(void)
443 {
444 platform_device_register(&dm9k_device);
445 }
446
447 /* PXA UARTs */
mxm_8x10_uarts_init(void)448 static void __init mxm_8x10_uarts_init(void)
449 {
450 pxa_set_ffuart_info(NULL);
451 pxa_set_btuart_info(NULL);
452 pxa_set_stuart_info(NULL);
453 }
454
455 /* I2C and Real Time Clock */
456 static struct i2c_board_info __initdata mxm_8x10_i2c_devices[] = {
457 {
458 I2C_BOARD_INFO("ds1337", 0x68)
459 }
460 };
461
mxm_8x10_i2c_init(void)462 static void __init mxm_8x10_i2c_init(void)
463 {
464 i2c_register_board_info(0, mxm_8x10_i2c_devices,
465 ARRAY_SIZE(mxm_8x10_i2c_devices));
466 pxa_set_i2c_info(NULL);
467 }
468
mxm_8x10_barebones_init(void)469 void __init mxm_8x10_barebones_init(void)
470 {
471 pxa3xx_mfp_config(ARRAY_AND_SIZE(mfp_cfg));
472
473 mxm_8x10_uarts_init();
474 mxm_8x10_nand_init();
475 mxm_8x10_i2c_init();
476 mxm_8x10_ethernet_init();
477 }
478