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Linux/arch/arm/mach-pxa/csb726.c

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

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