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
38External device stuff   - Leave unconfigured for now...
39---------------------
40GPIO0   -   DREQ    (External DMA Request)
41GPIO3   -   nGCS2   (External Chip Select) Where is nGCS0; nGCS1; nGCS4; nGCS5 ?
42GPIO4   -   nGCS3
43GPIO15  -   EXT_GPIO1
44GPIO16  -   EXT_GPIO2
45GPIO17  -   EXT_GPIO3
46GPIO24  -   EXT_GPIO4
47GPIO25  -   EXT_GPIO5
48GPIO26  -   EXT_GPIO6
49GPIO27  -   EXT_GPIO7
50GPIO28  -   EXT_GPIO8
51GPIO29  -   EXT_GPIO9
52GPIO30  -   EXT_GPIO10
53GPIO31  -   EXT_GPIO11
54GPIO57  -   EXT_GPIO12
55GPIO74  -   EXT_IRQ1
56GPIO75  -   EXT_IRQ2
57GPIO76  -   EXT_IRQ3
58GPIO77  -   EXT_IRQ4
59GPIO78  -   EXT_IRQ5
60GPIO79  -   EXT_IRQ6
61GPIO80  -   EXT_IRQ7
62GPIO81  -   EXT_IRQ8
63GPIO87  -   VCCIO_PWREN (External Device PWREN)
64
65Dallas 1-Wire   - Leave unconfigured for now...
66-------------
67GPIO0_2 -   DS - 1Wire
68
69Ethernet
70--------
71GPIO1   -   DM9000 PWR
72GPIO9   -   DM9K_nIRQ
73GPIO36  -   DM9K_RESET
74
75Keypad  - Leave unconfigured by for now...
76------
77GPIO1_2 -   KP_DKIN0
78GPIO5_2 -   KP_MKOUT7
79GPIO82  -   KP_DKIN1
80GPIO85  -   KP_DKIN2
81GPIO86  -   KP_DKIN3
82GPIO113 -   KP_MKIN0
83GPIO114 -   KP_MKIN1
84GPIO115 -   KP_MKIN2
85GPIO116 -   KP_MKIN3
86GPIO117 -   KP_MKIN4
87GPIO118 -   KP_MKIN5
88GPIO119 -   KP_MKIN6
89GPIO120 -   KP_MKIN7
90GPIO121 -   KP_MKOUT0
91GPIO122 -   KP_MKOUT1
92GPIO122 -   KP_MKOUT2
93GPIO123 -   KP_MKOUT3
94GPIO124 -   KP_MKOUT4
95GPIO125 -   KP_MKOUT5
96GPIO127 -   KP_MKOUT6
97
98Data Bus    - Leave unconfigured for now...
99--------
100GPIO2   -   nWait (Data Bus)
101
102USB Device
103----------
104GPIO4_2 -   USBD_PULLUP
105GPIO10  -   UTM_CLK (USB Device UTM Clk)
106GPIO49  -   USB 2.0 Device UTM_DATA0
107GPIO50  -   USB 2.0 Device UTM_DATA1
108GPIO51  -   USB 2.0 Device UTM_DATA2
109GPIO52  -   USB 2.0 Device UTM_DATA3
110GPIO53  -   USB 2.0 Device UTM_DATA4
111GPIO54  -   USB 2.0 Device UTM_DATA5
112GPIO55  -   USB 2.0 Device UTM_DATA6
113GPIO56  -   USB 2.0 Device UTM_DATA7
114GPIO58  -   UTM_RXVALID (USB 2.0 Device)
115GPIO59  -   UTM_RXACTIVE (USB 2.0 Device)
116GPIO60  -   UTM_RXERROR
117GPIO61  -   UTM_OPMODE0
118GPIO62  -   UTM_OPMODE1
119GPIO71  -   USBD_INT    (USB Device?)
120GPIO73  -   UTM_TXREADY (USB 2.0 Device)
121GPIO83  -   UTM_TXVALID (USB 2.0 Device)
122GPIO98  -   UTM_RESET   (USB 2.0 device)
123GPIO99  -   UTM_XCVR_SELECT
124GPIO100 -   UTM_TERM_SELECT
125GPIO101 -   UTM_SUSPENDM_X
126GPIO102 -   UTM_LINESTATE0
127GPIO103 -   UTM_LINESTATE1
128
129Card-Bus Interface  - Leave unconfigured for now...
130------------------
131GPIO5   -   nPIOR (I/O space output enable)
132GPIO6   -   nPIOW (I/O space write enable)
133GPIO7   -   nIOS16 (Input from I/O space telling size of data bus)
134GPIO8   -   nPWAIT (Input for inserting wait states)
135
136LCD
137---
138GPIO6_2     -   LDD0
139GPIO7_2     -   LDD1
140GPIO8_2     -   LDD2
141GPIO9_2     -   LDD3
142GPIO11_2    -   LDD5
143GPIO12_2    -   LDD6
144GPIO13_2    -   LDD7
145GPIO14_2    -   VSYNC
146GPIO15_2    -   HSYNC
147GPIO16_2    -   VCLK
148GPIO17_2    -   HCLK
149GPIO18_2    -   VDEN
150GPIO63      -   LDD8    (CPU LCD)
151GPIO64      -   LDD9    (CPU LCD)
152GPIO65      -   LDD10   (CPU LCD)
153GPIO66      -   LDD11   (CPU LCD)
154GPIO67      -   LDD12   (CPU LCD)
155GPIO68      -   LDD13   (CPU LCD)
156GPIO69      -   LDD14   (CPU LCD)
157GPIO70      -   LDD15   (CPU LCD)
158GPIO88      -   VCCLCD_PWREN (LCD Panel PWREN)
159GPIO97      -   BACKLIGHT_EN
160GPIO104     -   LCD_PWREN
161
162PWM   - Leave unconfigured for now...
163---
164GPIO11  -   PWM0
165GPIO12  -   PWM1
166GPIO13  -   PWM2
167GPIO14  -   PWM3
168
169SD-CARD
170-------
171GPIO18  -   SDDATA0
172GPIO19  -   SDDATA1
173GPIO20  -   SDDATA2
174GPIO21  -   SDDATA3
175GPIO22  -   SDCLK
176GPIO23  -   SDCMD
177GPIO72  -   SD_WP
178GPIO84  -   SD_nIRQ_CD  (SD-Card)
179
180I2C
181---
182GPIO32  -   I2CSCL
183GPIO33  -   I2CSDA
184
185AC97
186----
187GPIO35  -   AC97_SDATA_IN
188GPIO37  -   AC97_SDATA_OUT
189GPIO38  -   AC97_SYNC
190GPIO39  -   AC97_BITCLK
191GPIO40  -   AC97_nRESET
192
193UART1
194-----
195GPIO41  -   UART_RXD1
196GPIO42  -   UART_TXD1
197GPIO43  -   UART_CTS1
198GPIO44  -   UART_DCD1
199GPIO45  -   UART_DSR1
200GPIO46  -   UART_nRI1
201GPIO47  -   UART_DTR1
202GPIO48  -   UART_RTS1
203
204UART2
205-----
206GPIO109 -   RTS2
207GPIO110 -   RXD2
208GPIO111 -   TXD2
209GPIO112 -   nCTS2
210
211UART3
212-----
213GPIO105 -   nCTS3
214GPIO106 -   nRTS3
215GPIO107 -   TXD3
216GPIO108 -   RXD3
217
218SSP3    - Leave unconfigured for now...
219----
220GPIO89  -   SSP3_CLK
221GPIO90  -   SSP3_SFRM
222GPIO91  -   SSP3_TXD
223GPIO92  -   SSP3_RXD
224
225SSP4
226GPIO93  -   SSP4_CLK
227GPIO94  -   SSP4_SFRM
228GPIO95  -   SSP4_TXD
229GPIO96  -   SSP4_RXD
230*/
231
232static 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)
323static 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
328static 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
341void __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 */
349static struct pxaohci_platform_data mxm_8x10_ohci_platform_data = {
350	.port_mode = PMM_NPS_MODE,
351	.flags = ENABLE_PORT_ALL
352};
353
354void __init mxm_8x10_usb_host_init(void)
355{
356	pxa_set_ohci_info(&mxm_8x10_ohci_platform_data);
357}
358
359/* AC97 Sound Support */
360static struct platform_device mxm_8x10_ac97_device = {
361	.name = "pxa2xx-ac97"
362};
363
364void __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))
373static 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
399static 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
405static void __init mxm_8x10_nand_init(void)
406{
407	pxa3xx_set_nand_info(&mxm_8x10_nand_info);
408}
409#else
410static inline void mxm_8x10_nand_init(void) {}
411#endif /* IS_ENABLED(CONFIG_MTD_NAND_MARVELL) */
412
413/* Ethernet support: Davicom DM9000 */
414static 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
432static struct dm9000_plat_data dm9k_plat_data = {
433	.flags = DM9000_PLATF_16BITONLY
434};
435
436static 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
446static void __init mxm_8x10_ethernet_init(void)
447{
448	platform_device_register(&dm9k_device);
449}
450
451/* PXA UARTs */
452static 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 */
460static struct i2c_board_info __initdata mxm_8x10_i2c_devices[] = {
461	{
462		I2C_BOARD_INFO("ds1337", 0x68)
463	}
464};
465
466static 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
473void __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}
482