arch/arm/mach-pxa/csb726.c

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