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
  20 #include <asm/mach-types.h>
  21 #include <asm/mach/arch.h>
  22 #include <mach/csb726.h>
  23 #include <mach/mfp-pxa27x.h>
  24 #include <mach/i2c.h>
  25 #include <mach/mmc.h>
  26 #include <mach/ohci.h>
  27 #include <mach/pxa2xx-regs.h>
  28
  29 #include "generic.h"
  30 #include "devices.h"
  31
  32 /*
  33  * n/a: 2, 5, 6, 7, 8, 23, 24, 25, 26, 27, 87, 88, 89,
  34  * nu: 58 -- 77, 90, 91, 93, 102, 105-108, 114-116,
  35  * XXX: 21,
  36  * XXX: 79 CS_3 for LAN9215 or PSKTSEL on R2, R3
  37  * XXX: 33 CS_5 for LAN9215 on R1
  38  */
  39
  40 static unsigned long csb726_pin_config[] = {
  41         GPIO78_nCS_2, /* EXP_CS */
  42         GPIO79_nCS_3, /* SMSC9215 */
  43         GPIO80_nCS_4, /* SM501 */
  44
  45         GPIO52_GPIO, /* #SMSC9251 int */
  46         GPIO53_GPIO, /* SM501 int */
  47
  48         GPIO1_GPIO, /* GPIO0 */
  49         GPIO11_GPIO, /* GPIO1 */
  50         GPIO9_GPIO, /* GPIO2 */
  51         GPIO10_GPIO, /* GPIO3 */
  52         GPIO16_PWM0_OUT, /* or GPIO4 */
  53         GPIO17_PWM1_OUT, /* or GPIO5 */
  54         GPIO94_GPIO, /* GPIO6 */
  55         GPIO95_GPIO, /* GPIO7 */
  56         GPIO96_GPIO, /* GPIO8 */
  57         GPIO97_GPIO, /* GPIO9 */
  58         GPIO15_GPIO, /* EXP_IRQ */
  59         GPIO18_RDY, /* EXP_WAIT */
  60
  61         GPIO0_GPIO, /* PWR_INT */
  62         GPIO104_GPIO, /* PWR_OFF */
  63
  64         GPIO12_GPIO, /* touch irq */
  65
  66         GPIO13_SSP2_TXD,
  67         GPIO14_SSP2_SFRM,
  68         MFP_CFG_OUT(GPIO19, AF1, DRIVE_LOW),/* SSP2_SYSCLK */
  69         GPIO22_SSP2_SCLK,
  70
  71         GPIO81_SSP3_TXD,
  72         GPIO82_SSP3_RXD,
  73         GPIO83_SSP3_SFRM,
  74         GPIO84_SSP3_SCLK,
  75
  76         GPIO20_GPIO, /* SDIO int */
  77         GPIO32_MMC_CLK,
  78         GPIO92_MMC_DAT_0,
  79         GPIO109_MMC_DAT_1,
  80         GPIO110_MMC_DAT_2,
  81         GPIO111_MMC_DAT_3,
  82         GPIO112_MMC_CMD,
  83         GPIO100_GPIO, /* SD CD */
  84         GPIO101_GPIO, /* SD WP */
  85
  86         GPIO28_AC97_BITCLK,
  87         GPIO29_AC97_SDATA_IN_0,
  88         GPIO30_AC97_SDATA_OUT,
  89         GPIO31_AC97_SYNC,
  90         GPIO113_AC97_nRESET,
  91
  92         GPIO34_FFUART_RXD,
  93         GPIO35_FFUART_CTS,
  94         GPIO36_FFUART_DCD,
  95         GPIO37_FFUART_DSR,
  96         GPIO38_FFUART_RI,
  97         GPIO39_FFUART_TXD,
  98         GPIO40_FFUART_DTR,
  99         GPIO41_FFUART_RTS,
 100
 101         GPIO42_BTUART_RXD,
 102         GPIO43_BTUART_TXD,
 103         GPIO44_BTUART_CTS,
 104         GPIO45_BTUART_RTS,
 105
 106         GPIO46_STUART_RXD,
 107         GPIO47_STUART_TXD,
 108
 109         GPIO48_nPOE,
 110         GPIO49_nPWE,
 111         GPIO50_nPIOR,
 112         GPIO51_nPIOW,
 113         GPIO54_nPCE_2,
 114         GPIO55_nPREG,
 115         GPIO56_nPWAIT,
 116         GPIO57_nIOIS16, /* maybe unused */
 117         GPIO85_nPCE_1,
 118         GPIO98_GPIO, /* CF IRQ */
 119         GPIO99_GPIO, /* CF CD */
 120         GPIO103_GPIO, /* Reset */
 121
 122         GPIO117_I2C_SCL,
 123         GPIO118_I2C_SDA,
 124 };
 125
 126 static struct pxamci_platform_data csb726_mci_data;
 127
 128 static int csb726_mci_init(struct device *dev,
 129                 irq_handler_t detect, void *data)
 130 {
 131         int err;
 132
 133         csb726_mci_data.detect_delay = msecs_to_jiffies(500);
 134
 135         err = gpio_request(CSB726_GPIO_MMC_DETECT, "MMC detect");
 136         if (err)
 137                 goto err_det_req;
 138
 139         err = gpio_direction_input(CSB726_GPIO_MMC_DETECT);
 140         if (err)
 141                 goto err_det_dir;
 142
 143         err = gpio_request(CSB726_GPIO_MMC_RO, "MMC ro");
 144         if (err)
 145                 goto err_ro_req;
 146
 147         err = gpio_direction_input(CSB726_GPIO_MMC_RO);
 148         if (err)
 149                 goto err_ro_dir;
 150
 151         err = request_irq(gpio_to_irq(CSB726_GPIO_MMC_DETECT), detect,
 152                         IRQF_DISABLED, "MMC card detect", data);
 153         if (err)
 154                 goto err_irq;
 155
 156         return 0;
 157
 158 err_irq:
 159 err_ro_dir:
 160         gpio_free(CSB726_GPIO_MMC_RO);
 161 err_ro_req:
 162 err_det_dir:
 163         gpio_free(CSB726_GPIO_MMC_DETECT);
 164 err_det_req:
 165         return err;
 166 }
 167
 168 static int csb726_mci_get_ro(struct device *dev)
 169 {
 170         return gpio_get_value(CSB726_GPIO_MMC_RO);
 171 }
 172
 173 static void csb726_mci_exit(struct device *dev, void *data)
 174 {
 175         free_irq(gpio_to_irq(CSB726_GPIO_MMC_DETECT), data);
 176         gpio_free(CSB726_GPIO_MMC_RO);
 177         gpio_free(CSB726_GPIO_MMC_DETECT);
 178 }
 179
 180 static struct pxamci_platform_data csb726_mci = {
 181         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 182         .init           = csb726_mci_init,
 183         .get_ro         = csb726_mci_get_ro,
 184         /* FIXME setpower */
 185         .exit           = csb726_mci_exit,
 186 };
 187
 188 static struct pxaohci_platform_data csb726_ohci_platform_data = {
 189         .port_mode      = PMM_NPS_MODE,
 190         .flags          = ENABLE_PORT1 | NO_OC_PROTECTION,
 191 };
 192
 193 static struct mtd_partition csb726_flash_partitions[] = {
 194         {
 195                 .name           = "Bootloader",
 196                 .offset         = 0,
 197                 .size           = CSB726_FLASH_uMON,
 198                 .mask_flags     = MTD_WRITEABLE  /* force read-only */
 199         },
 200         {
 201                 .name           = "root",
 202                 .offset         = MTDPART_OFS_APPEND,
 203                 .size           = MTDPART_SIZ_FULL,
 204         }
 205 };
 206
 207 static struct physmap_flash_data csb726_flash_data = {
 208         .width          = 2,
 209         .parts          = csb726_flash_partitions,
 210         .nr_parts       = ARRAY_SIZE(csb726_flash_partitions),
 211 };
 212
 213 static struct resource csb726_flash_resources[] = {
 214         {
 215                 .start          = PXA_CS0_PHYS,
 216                 .end            = PXA_CS0_PHYS + CSB726_FLASH_SIZE - 1 ,
 217                 .flags          = IORESOURCE_MEM,
 218         }
 219 };
 220
 221 static struct platform_device csb726_flash = {
 222         .name           = "physmap-flash",
 223         .dev            = {
 224                 .platform_data  = &csb726_flash_data,
 225         },
 226         .resource       = csb726_flash_resources,
 227         .num_resources  = ARRAY_SIZE(csb726_flash_resources),
 228 };
 229
 230 static struct resource csb726_sm501_resources[] = {
 231         {
 232                 .start          = PXA_CS4_PHYS,
 233                 .end            = PXA_CS4_PHYS + SZ_8M - 1,
 234                 .flags          = IORESOURCE_MEM,
 235                 .name           = "sm501-localmem",
 236         },
 237         {
 238                 .start          = PXA_CS4_PHYS + SZ_64M - SZ_2M,
 239                 .end            = PXA_CS4_PHYS + SZ_64M - 1,
 240                 .flags          = IORESOURCE_MEM,
 241                 .name           = "sm501-regs",
 242         },
 243         {
 244                 .start          = CSB726_IRQ_SM501,
 245                 .end            = CSB726_IRQ_SM501,
 246                 .flags          = IORESOURCE_IRQ,
 247         },
 248 };
 249
 250 static struct sm501_initdata csb726_sm501_initdata = {
 251 /*      .devices        = SM501_USE_USB_HOST, */
 252         .devices        = SM501_USE_USB_HOST | SM501_USE_UART0 | SM501_USE_UART1,
 253 };
 254
 255 static struct sm501_platdata csb726_sm501_platdata = {
 256         .init           = &csb726_sm501_initdata,
 257 };
 258
 259 static struct platform_device csb726_sm501 = {
 260         .name           = "sm501",
 261         .id             = 0,
 262         .num_resources  = ARRAY_SIZE(csb726_sm501_resources),
 263         .resource       = csb726_sm501_resources,
 264         .dev            = {
 265                 .platform_data = &csb726_sm501_platdata,
 266         },
 267 };
 268
 269 static struct resource csb726_lan_resources[] = {
 270         {
 271                 .start  = PXA_CS3_PHYS,
 272                 .end    = PXA_CS3_PHYS + SZ_64K - 1,
 273                 .flags  = IORESOURCE_MEM,
 274         },
 275         {
 276                 .start  = CSB726_IRQ_LAN,
 277                 .end    = CSB726_IRQ_LAN,
 278                 .flags  = IORESOURCE_IRQ,
 279         },
 280 };
 281
 282 static struct platform_device csb726_lan = {
 283         .name           = "smc911x",
 284         .id             = -1,
 285         .num_resources  = ARRAY_SIZE(csb726_lan_resources),
 286         .resource       = csb726_lan_resources,
 287 };
 288
 289 static struct platform_device *devices[] __initdata = {
 290         &csb726_flash,
 291         &csb726_sm501,
 292         &csb726_lan,
 293 };
 294
 295 static void __init csb726_init(void)
 296 {
 297         pxa2xx_mfp_config(ARRAY_AND_SIZE(csb726_pin_config));
 298 /*      MSC1 = 0x7ffc3ffc; *//* LAN9215/EXP_CS */
 299 /*      MSC2 = 0x06697ff4; *//* none/SM501 */
 300         MSC2 = (MSC2 & ~0xffff) | 0x7ff4; /* SM501 */
 301
 302         pxa_set_i2c_info(NULL);
 303         pxa27x_set_i2c_power_info(NULL);
 304         pxa_set_mci_info(&csb726_mci);
 305         pxa_set_ohci_info(&csb726_ohci_platform_data);
 306
 307         platform_add_devices(devices, ARRAY_SIZE(devices));
 308 }
 309
 310 MACHINE_START(CSB726, "Cogent CSB726")
 311         .phys_io        = 0x40000000,
 312         .boot_params    = 0xa0000100,
 313         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 314         .map_io         = pxa_map_io,
 315         .init_irq       = pxa27x_init_irq,
 316         .init_machine   = csb726_init,
 317         .timer          = &pxa_timer,
 318 MACHINE_END