arch/arm/mach-pxa/csb726.c

   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
  21 #include <asm/mach-types.h>
  22 #include <asm/mach/arch.h>
  23 #include <mach/csb726.h>
  24 #include <mach/mfp-pxa27x.h>
  25 #include <plat/i2c.h>
  26 #include <mach/mmc.h>
  27 #include <mach/ohci.h>
  28 #include <mach/pxa2xx-regs.h>
  29 #include <mach/audio.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_data;
 129
 130 static int csb726_mci_init(struct device *dev,
 131                 irq_handler_t detect, void *data)
 132 {
 133         int err;
 134
 135         csb726_mci_data.detect_delay = msecs_to_jiffies(500);
 136
 137         err = gpio_request(CSB726_GPIO_MMC_DETECT, "MMC detect");
 138         if (err)
 139                 goto err_det_req;
 140
 141         err = gpio_direction_input(CSB726_GPIO_MMC_DETECT);
 142         if (err)
 143                 goto err_det_dir;
 144
 145         err = gpio_request(CSB726_GPIO_MMC_RO, "MMC ro");
 146         if (err)
 147                 goto err_ro_req;
 148
 149         err = gpio_direction_input(CSB726_GPIO_MMC_RO);
 150         if (err)
 151                 goto err_ro_dir;
 152
 153         err = request_irq(gpio_to_irq(CSB726_GPIO_MMC_DETECT), detect,
 154                         IRQF_DISABLED, "MMC card detect", data);
 155         if (err)
 156                 goto err_irq;
 157
 158         return 0;
 159
 160 err_irq:
 161 err_ro_dir:
 162         gpio_free(CSB726_GPIO_MMC_RO);
 163 err_ro_req:
 164 err_det_dir:
 165         gpio_free(CSB726_GPIO_MMC_DETECT);
 166 err_det_req:
 167         return err;
 168 }
 169
 170 static int csb726_mci_get_ro(struct device *dev)
 171 {
 172         return gpio_get_value(CSB726_GPIO_MMC_RO);
 173 }
 174
 175 static void csb726_mci_exit(struct device *dev, void *data)
 176 {
 177         free_irq(gpio_to_irq(CSB726_GPIO_MMC_DETECT), data);
 178         gpio_free(CSB726_GPIO_MMC_RO);
 179         gpio_free(CSB726_GPIO_MMC_DETECT);
 180 }
 181
 182 static struct pxamci_platform_data csb726_mci = {
 183         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 184         .init           = csb726_mci_init,
 185         .get_ro         = csb726_mci_get_ro,
 186         /* FIXME setpower */
 187         .exit           = csb726_mci_exit,
 188 };
 189
 190 static struct pxaohci_platform_data csb726_ohci_platform_data = {
 191         .port_mode      = PMM_NPS_MODE,
 192         .flags          = ENABLE_PORT1 | NO_OC_PROTECTION,
 193 };
 194
 195 static struct mtd_partition csb726_flash_partitions[] = {
 196         {
 197                 .name           = "Bootloader",
 198                 .offset         = 0,
 199                 .size           = CSB726_FLASH_uMON,
 200                 .mask_flags     = MTD_WRITEABLE  /* force read-only */
 201         },
 202         {
 203                 .name           = "root",
 204                 .offset         = MTDPART_OFS_APPEND,
 205                 .size           = MTDPART_SIZ_FULL,
 206         }
 207 };
 208
 209 static struct physmap_flash_data csb726_flash_data = {
 210         .width          = 2,
 211         .parts          = csb726_flash_partitions,
 212         .nr_parts       = ARRAY_SIZE(csb726_flash_partitions),
 213 };
 214
 215 static struct resource csb726_flash_resources[] = {
 216         {
 217                 .start          = PXA_CS0_PHYS,
 218                 .end            = PXA_CS0_PHYS + CSB726_FLASH_SIZE - 1 ,
 219                 .flags          = IORESOURCE_MEM,
 220         }
 221 };
 222
 223 static struct platform_device csb726_flash = {
 224         .name           = "physmap-flash",
 225         .dev            = {
 226                 .platform_data  = &csb726_flash_data,
 227         },
 228         .resource       = csb726_flash_resources,
 229         .num_resources  = ARRAY_SIZE(csb726_flash_resources),
 230 };
 231
 232 static struct resource csb726_sm501_resources[] = {
 233         {
 234                 .start          = PXA_CS4_PHYS,
 235                 .end            = PXA_CS4_PHYS + SZ_8M - 1,
 236                 .flags          = IORESOURCE_MEM,
 237                 .name           = "sm501-localmem",
 238         },
 239         {
 240                 .start          = PXA_CS4_PHYS + SZ_64M - SZ_2M,
 241                 .end            = PXA_CS4_PHYS + SZ_64M - 1,
 242                 .flags          = IORESOURCE_MEM,
 243                 .name           = "sm501-regs",
 244         },
 245         {
 246                 .start          = CSB726_IRQ_SM501,
 247                 .end            = CSB726_IRQ_SM501,
 248                 .flags          = IORESOURCE_IRQ,
 249         },
 250 };
 251
 252 static struct sm501_initdata csb726_sm501_initdata = {
 253 /*      .devices        = SM501_USE_USB_HOST, */
 254         .devices        = SM501_USE_USB_HOST | SM501_USE_UART0 | SM501_USE_UART1,
 255 };
 256
 257 static struct sm501_platdata csb726_sm501_platdata = {
 258         .init           = &csb726_sm501_initdata,
 259 };
 260
 261 static struct platform_device csb726_sm501 = {
 262         .name           = "sm501",
 263         .id             = 0,
 264         .num_resources  = ARRAY_SIZE(csb726_sm501_resources),
 265         .resource       = csb726_sm501_resources,
 266         .dev            = {
 267                 .platform_data = &csb726_sm501_platdata,
 268         },
 269 };
 270
 271 static struct resource csb726_lan_resources[] = {
 272         {
 273                 .start  = PXA_CS3_PHYS,
 274                 .end    = PXA_CS3_PHYS + SZ_64K - 1,
 275                 .flags  = IORESOURCE_MEM,
 276         },
 277         {
 278                 .start  = CSB726_IRQ_LAN,
 279                 .end    = CSB726_IRQ_LAN,
 280                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
 281         },
 282 };
 283
 284 struct smsc911x_platform_config csb726_lan_config = {
 285         .irq_type       = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
 286         .irq_type       = SMSC911X_IRQ_TYPE_PUSH_PULL,
 287         .flags          = SMSC911X_USE_32BIT,
 288         .phy_interface  = PHY_INTERFACE_MODE_MII,
 289 };
 290
 291
 292 static struct platform_device csb726_lan = {
 293         .name           = "smsc911x",
 294         .id             = -1,
 295         .num_resources  = ARRAY_SIZE(csb726_lan_resources),
 296         .resource       = csb726_lan_resources,
 297         .dev            = {
 298                 .platform_data  = &csb726_lan_config,
 299         },
 300 };
 301
 302 static struct platform_device *devices[] __initdata = {
 303         &csb726_flash,
 304         &csb726_sm501,
 305         &csb726_lan,
 306 };
 307
 308 static void __init csb726_init(void)
 309 {
 310         pxa2xx_mfp_config(ARRAY_AND_SIZE(csb726_pin_config));
 311 /*      MSC1 = 0x7ffc3ffc; *//* LAN9215/EXP_CS */
 312 /*      MSC2 = 0x06697ff4; *//* none/SM501 */
 313         MSC2 = (MSC2 & ~0xffff) | 0x7ff4; /* SM501 */
 314
 315         pxa_set_i2c_info(NULL);
 316         pxa27x_set_i2c_power_info(NULL);
 317         pxa_set_mci_info(&csb726_mci);
 318         pxa_set_ohci_info(&csb726_ohci_platform_data);
 319         pxa_set_ac97_info(NULL);
 320
 321         platform_add_devices(devices, ARRAY_SIZE(devices));
 322 }
 323
 324 MACHINE_START(CSB726, "Cogent CSB726")
 325         .phys_io        = 0x40000000,
 326         .boot_params    = 0xa0000100,
 327         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 328         .map_io         = pxa_map_io,
 329         .init_irq       = pxa27x_init_irq,
 330         .init_machine   = csb726_init,
 331         .timer          = &pxa_timer,
 332 MACHINE_END