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/machine.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/platform_data/i2c-pxa.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 };
 133
 134 static struct gpiod_lookup_table csb726_mci_gpio_table = {
 135         .dev_id = "pxa2xx-mci.0",
 136         .table = {
 137                 /* Card detect on GPIO 100 */
 138                 GPIO_LOOKUP("gpio-pxa", CSB726_GPIO_MMC_DETECT,
 139                             "cd", GPIO_ACTIVE_LOW),
 140                 /* Write protect on GPIO 101 */
 141                 GPIO_LOOKUP("gpio-pxa", CSB726_GPIO_MMC_RO,
 142                             "wp", GPIO_ACTIVE_LOW),
 143                 { },
 144         },
 145 };
 146
 147 static struct pxaohci_platform_data csb726_ohci_platform_data = {
 148         .port_mode      = PMM_NPS_MODE,
 149         .flags          = ENABLE_PORT1 | NO_OC_PROTECTION,
 150 };
 151
 152 static struct mtd_partition csb726_flash_partitions[] = {
 153         {
 154                 .name           = "Bootloader",
 155                 .offset         = 0,
 156                 .size           = CSB726_FLASH_uMON,
 157                 .mask_flags     = MTD_WRITEABLE  /* force read-only */
 158         },
 159         {
 160                 .name           = "root",
 161                 .offset         = MTDPART_OFS_APPEND,
 162                 .size           = MTDPART_SIZ_FULL,
 163         }
 164 };
 165
 166 static struct physmap_flash_data csb726_flash_data = {
 167         .width          = 2,
 168         .parts          = csb726_flash_partitions,
 169         .nr_parts       = ARRAY_SIZE(csb726_flash_partitions),
 170 };
 171
 172 static struct resource csb726_flash_resources[] = {
 173         {
 174                 .start          = PXA_CS0_PHYS,
 175                 .end            = PXA_CS0_PHYS + CSB726_FLASH_SIZE - 1 ,
 176                 .flags          = IORESOURCE_MEM,
 177         }
 178 };
 179
 180 static struct platform_device csb726_flash = {
 181         .name           = "physmap-flash",
 182         .dev            = {
 183                 .platform_data  = &csb726_flash_data,
 184         },
 185         .resource       = csb726_flash_resources,
 186         .num_resources  = ARRAY_SIZE(csb726_flash_resources),
 187 };
 188
 189 static struct resource csb726_sm501_resources[] = {
 190         {
 191                 .start          = PXA_CS4_PHYS,
 192                 .end            = PXA_CS4_PHYS + SZ_8M - 1,
 193                 .flags          = IORESOURCE_MEM,
 194                 .name           = "sm501-localmem",
 195         },
 196         {
 197                 .start          = PXA_CS4_PHYS + SZ_64M - SZ_2M,
 198                 .end            = PXA_CS4_PHYS + SZ_64M - 1,
 199                 .flags          = IORESOURCE_MEM,
 200                 .name           = "sm501-regs",
 201         },
 202         {
 203                 .start          = CSB726_IRQ_SM501,
 204                 .end            = CSB726_IRQ_SM501,
 205                 .flags          = IORESOURCE_IRQ,
 206         },
 207 };
 208
 209 static struct sm501_initdata csb726_sm501_initdata = {
 210 /*      .devices        = SM501_USE_USB_HOST, */
 211         .devices        = SM501_USE_USB_HOST | SM501_USE_UART0 | SM501_USE_UART1,
 212 };
 213
 214 static struct sm501_platdata csb726_sm501_platdata = {
 215         .init           = &csb726_sm501_initdata,
 216 };
 217
 218 static struct platform_device csb726_sm501 = {
 219         .name           = "sm501",
 220         .id             = 0,
 221         .num_resources  = ARRAY_SIZE(csb726_sm501_resources),
 222         .resource       = csb726_sm501_resources,
 223         .dev            = {
 224                 .platform_data = &csb726_sm501_platdata,
 225         },
 226 };
 227
 228 static struct resource csb726_lan_resources[] = {
 229         {
 230                 .start  = PXA_CS3_PHYS,
 231                 .end    = PXA_CS3_PHYS + SZ_64K - 1,
 232                 .flags  = IORESOURCE_MEM,
 233         },
 234         {
 235                 .start  = CSB726_IRQ_LAN,
 236                 .end    = CSB726_IRQ_LAN,
 237                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
 238         },
 239 };
 240
 241 struct smsc911x_platform_config csb726_lan_config = {
 242         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
 243         .irq_type       = SMSC911X_IRQ_TYPE_PUSH_PULL,
 244         .flags          = SMSC911X_USE_32BIT,
 245         .phy_interface  = PHY_INTERFACE_MODE_MII,
 246 };
 247
 248
 249 static struct platform_device csb726_lan = {
 250         .name           = "smsc911x",
 251         .id             = -1,
 252         .num_resources  = ARRAY_SIZE(csb726_lan_resources),
 253         .resource       = csb726_lan_resources,
 254         .dev            = {
 255                 .platform_data  = &csb726_lan_config,
 256         },
 257 };
 258
 259 static struct platform_device *devices[] __initdata = {
 260         &csb726_flash,
 261         &csb726_sm501,
 262         &csb726_lan,
 263 };
 264
 265 static void __init csb726_init(void)
 266 {
 267         pxa2xx_mfp_config(ARRAY_AND_SIZE(csb726_pin_config));
 268 /*      __raw_writel(0x7ffc3ffc, MSC1); *//* LAN9215/EXP_CS */
 269 /*      __raw_writel(0x06697ff4, MSC2); *//* none/SM501 */
 270         __raw_writel((__raw_readl(MSC2) & ~0xffff) | 0x7ff4, MSC2); /* SM501 */
 271
 272         pxa_set_ffuart_info(NULL);
 273         pxa_set_btuart_info(NULL);
 274         pxa_set_stuart_info(NULL);
 275         pxa_set_i2c_info(NULL);
 276         pxa27x_set_i2c_power_info(NULL);
 277         gpiod_add_lookup_table(&csb726_mci_gpio_table);
 278         pxa_set_mci_info(&csb726_mci);
 279         pxa_set_ohci_info(&csb726_ohci_platform_data);
 280         pxa_set_ac97_info(NULL);
 281
 282         platform_add_devices(devices, ARRAY_SIZE(devices));
 283 }
 284
 285 MACHINE_START(CSB726, "Cogent CSB726")
 286         .atag_offset    = 0x100,
 287         .map_io         = pxa27x_map_io,
 288         .nr_irqs        = PXA_NR_IRQS,
 289         .init_irq       = pxa27x_init_irq,
 290         .handle_irq       = pxa27x_handle_irq,
 291         .init_machine   = csb726_init,
 292         .init_time      = pxa_timer_init,
 293         .restart        = pxa_restart,
 294 MACHINE_END