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
38static 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
124static 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
130static 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
143static struct pxaohci_platform_data csb726_ohci_platform_data = {
144	.port_mode	= PMM_NPS_MODE,
145	.flags		= ENABLE_PORT1 | NO_OC_PROTECTION,
146};
147
148static 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
162static 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
168static 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
176static 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
185static 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
205static 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
210static struct sm501_platdata csb726_sm501_platdata = {
211	.init		= &csb726_sm501_initdata,
212};
213
214static 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
224static 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
237struct 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
245static 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
255static struct platform_device *devices[] __initdata = {
256	&csb726_flash,
257	&csb726_sm501,
258	&csb726_lan,
259};
260
261static 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
281MACHINE_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,
290MACHINE_END
291