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
  21 #include "csb726.h"
  22 #include "pxa27x.h"
  23 #include <linux/platform_data/mmc-pxamci.h>
  24 #include <linux/platform_data/usb-ohci-pxa27x.h>
  25 #include <linux/platform_data/asoc-pxa.h>
  26 #include "smemc.h"
  27
  28 #include "generic.h"
  29 #include "devices.h"
  30
  31 /*
  32  * n/a: 2, 5, 6, 7, 8, 23, 24, 25, 26, 27, 87, 88, 89,
  33  * nu: 58 -- 77, 90, 91, 93, 102, 105-108, 114-116,
  34  * XXX: 21,
  35  * XXX: 79 CS_3 for LAN9215 or PSKTSEL on R2, R3
  36  * XXX: 33 CS_5 for LAN9215 on R1
  37  */
  38
  39 static unsigned long csb726_pin_config[] = {
  40         GPIO78_nCS_2, /* EXP_CS */
  41         GPIO79_nCS_3, /* SMSC9215 */
  42         GPIO80_nCS_4, /* SM501 */
  43
  44         GPIO52_GPIO, /* #SMSC9251 int */
  45         GPIO53_GPIO, /* SM501 int */
  46
  47         GPIO1_GPIO, /* GPIO0 */
  48         GPIO11_GPIO, /* GPIO1 */
  49         GPIO9_GPIO, /* GPIO2 */
  50         GPIO10_GPIO, /* GPIO3 */
  51         GPIO16_PWM0_OUT, /* or GPIO4 */
  52         GPIO17_PWM1_OUT, /* or GPIO5 */
  53         GPIO94_GPIO, /* GPIO6 */
  54         GPIO95_GPIO, /* GPIO7 */
  55         GPIO96_GPIO, /* GPIO8 */
  56         GPIO97_GPIO, /* GPIO9 */
  57         GPIO15_GPIO, /* EXP_IRQ */
  58         GPIO18_RDY, /* EXP_WAIT */
  59
  60         GPIO0_GPIO, /* PWR_INT */
  61         GPIO104_GPIO, /* PWR_OFF */
  62
  63         GPIO12_GPIO, /* touch irq */
  64
  65         GPIO13_SSP2_TXD,
  66         GPIO14_SSP2_SFRM,
  67         MFP_CFG_OUT(GPIO19, AF1, DRIVE_LOW),/* SSP2_SYSCLK */
  68         GPIO22_SSP2_SCLK,
  69
  70         GPIO81_SSP3_TXD,
  71         GPIO82_SSP3_RXD,
  72         GPIO83_SSP3_SFRM,
  73         GPIO84_SSP3_SCLK,
  74
  75         GPIO20_GPIO, /* SDIO int */
  76         GPIO32_MMC_CLK,
  77         GPIO92_MMC_DAT_0,
  78         GPIO109_MMC_DAT_1,
  79         GPIO110_MMC_DAT_2,
  80         GPIO111_MMC_DAT_3,
  81         GPIO112_MMC_CMD,
  82         GPIO100_GPIO, /* SD CD */
  83         GPIO101_GPIO, /* SD WP */
  84
  85         GPIO28_AC97_BITCLK,
  86         GPIO29_AC97_SDATA_IN_0,
  87         GPIO30_AC97_SDATA_OUT,
  88         GPIO31_AC97_SYNC,
  89         GPIO113_AC97_nRESET,
  90
  91         GPIO34_FFUART_RXD,
  92         GPIO35_FFUART_CTS,
  93         GPIO36_FFUART_DCD,
  94         GPIO37_FFUART_DSR,
  95         GPIO38_FFUART_RI,
  96         GPIO39_FFUART_TXD,
  97         GPIO40_FFUART_DTR,
  98         GPIO41_FFUART_RTS,
  99
 100         GPIO42_BTUART_RXD,
 101         GPIO43_BTUART_TXD,
 102         GPIO44_BTUART_CTS,
 103         GPIO45_BTUART_RTS,
 104
 105         GPIO46_STUART_RXD,
 106         GPIO47_STUART_TXD,
 107
 108         GPIO48_nPOE,
 109         GPIO49_nPWE,
 110         GPIO50_nPIOR,
 111         GPIO51_nPIOW,
 112         GPIO54_nPCE_2,
 113         GPIO55_nPREG,
 114         GPIO56_nPWAIT,
 115         GPIO57_nIOIS16, /* maybe unused */
 116         GPIO85_nPCE_1,
 117         GPIO98_GPIO, /* CF IRQ */
 118         GPIO99_GPIO, /* CF CD */
 119         GPIO103_GPIO, /* Reset */
 120
 121         GPIO117_I2C_SCL,
 122         GPIO118_I2C_SDA,
 123 };
 124
 125 static struct pxamci_platform_data csb726_mci = {
 126         .detect_delay_ms        = 500,
 127         .ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
 128         /* FIXME setpower */
 129 };
 130
 131 static struct gpiod_lookup_table csb726_mci_gpio_table = {
 132         .dev_id = "pxa2xx-mci.0",
 133         .table = {
 134                 /* Card detect on GPIO 100 */
 135                 GPIO_LOOKUP("gpio-pxa", CSB726_GPIO_MMC_DETECT,
 136                             "cd", GPIO_ACTIVE_LOW),
 137                 /* Write protect on GPIO 101 */
 138                 GPIO_LOOKUP("gpio-pxa", CSB726_GPIO_MMC_RO,
 139                             "wp", GPIO_ACTIVE_LOW),
 140                 { },
 141         },
 142 };
 143
 144 static struct pxaohci_platform_data csb726_ohci_platform_data = {
 145         .port_mode      = PMM_NPS_MODE,
 146         .flags          = ENABLE_PORT1 | NO_OC_PROTECTION,
 147 };
 148
 149 static struct mtd_partition csb726_flash_partitions[] = {
 150         {
 151                 .name           = "Bootloader",
 152                 .offset         = 0,
 153                 .size           = CSB726_FLASH_uMON,
 154                 .mask_flags     = MTD_WRITEABLE  /* force read-only */
 155         },
 156         {
 157                 .name           = "root",
 158                 .offset         = MTDPART_OFS_APPEND,
 159                 .size           = MTDPART_SIZ_FULL,
 160         }
 161 };
 162
 163 static struct physmap_flash_data csb726_flash_data = {
 164         .width          = 2,
 165         .parts          = csb726_flash_partitions,
 166         .nr_parts       = ARRAY_SIZE(csb726_flash_partitions),
 167 };
 168
 169 static struct resource csb726_flash_resources[] = {
 170         {
 171                 .start          = PXA_CS0_PHYS,
 172                 .end            = PXA_CS0_PHYS + CSB726_FLASH_SIZE - 1 ,
 173                 .flags          = IORESOURCE_MEM,
 174         }
 175 };
 176
 177 static struct platform_device csb726_flash = {
 178         .name           = "physmap-flash",
 179         .dev            = {
 180                 .platform_data  = &csb726_flash_data,
 181         },
 182         .resource       = csb726_flash_resources,
 183         .num_resources  = ARRAY_SIZE(csb726_flash_resources),
 184 };
 185
 186 static struct resource csb726_sm501_resources[] = {
 187         {
 188                 .start          = PXA_CS4_PHYS,
 189                 .end            = PXA_CS4_PHYS + SZ_8M - 1,
 190                 .flags          = IORESOURCE_MEM,
 191                 .name           = "sm501-localmem",
 192         },
 193         {
 194                 .start          = PXA_CS4_PHYS + SZ_64M - SZ_2M,
 195                 .end            = PXA_CS4_PHYS + SZ_64M - 1,
 196                 .flags          = IORESOURCE_MEM,
 197                 .name           = "sm501-regs",
 198         },
 199         {
 200                 .start          = CSB726_IRQ_SM501,
 201                 .end            = CSB726_IRQ_SM501,
 202                 .flags          = IORESOURCE_IRQ,
 203         },
 204 };
 205
 206 static struct sm501_initdata csb726_sm501_initdata = {
 207 /*      .devices        = SM501_USE_USB_HOST, */
 208         .devices        = SM501_USE_USB_HOST | SM501_USE_UART0 | SM501_USE_UART1,
 209 };
 210
 211 static struct sm501_platdata csb726_sm501_platdata = {
 212         .init           = &csb726_sm501_initdata,
 213 };
 214
 215 static struct platform_device csb726_sm501 = {
 216         .name           = "sm501",
 217         .id             = 0,
 218         .num_resources  = ARRAY_SIZE(csb726_sm501_resources),
 219         .resource       = csb726_sm501_resources,
 220         .dev            = {
 221                 .platform_data = &csb726_sm501_platdata,
 222         },
 223 };
 224
 225 static struct resource csb726_lan_resources[] = {
 226         {
 227                 .start  = PXA_CS3_PHYS,
 228                 .end    = PXA_CS3_PHYS + SZ_64K - 1,
 229                 .flags  = IORESOURCE_MEM,
 230         },
 231         {
 232                 .start  = CSB726_IRQ_LAN,
 233                 .end    = CSB726_IRQ_LAN,
 234                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
 235         },
 236 };
 237
 238 struct smsc911x_platform_config csb726_lan_config = {
 239         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
 240         .irq_type       = SMSC911X_IRQ_TYPE_PUSH_PULL,
 241         .flags          = SMSC911X_USE_32BIT,
 242         .phy_interface  = PHY_INTERFACE_MODE_MII,
 243 };
 244
 245
 246 static struct platform_device csb726_lan = {
 247         .name           = "smsc911x",
 248         .id             = -1,
 249         .num_resources  = ARRAY_SIZE(csb726_lan_resources),
 250         .resource       = csb726_lan_resources,
 251         .dev            = {
 252                 .platform_data  = &csb726_lan_config,
 253         },
 254 };
 255
 256 static struct platform_device *devices[] __initdata = {
 257         &csb726_flash,
 258         &csb726_sm501,
 259         &csb726_lan,
 260 };
 261
 262 static void __init csb726_init(void)
 263 {
 264         pxa2xx_mfp_config(ARRAY_AND_SIZE(csb726_pin_config));
 265 /*      __raw_writel(0x7ffc3ffc, MSC1); *//* LAN9215/EXP_CS */
 266 /*      __raw_writel(0x06697ff4, MSC2); *//* none/SM501 */
 267         __raw_writel((__raw_readl(MSC2) & ~0xffff) | 0x7ff4, MSC2); /* SM501 */
 268
 269         pxa_set_ffuart_info(NULL);
 270         pxa_set_btuart_info(NULL);
 271         pxa_set_stuart_info(NULL);
 272         pxa_set_i2c_info(NULL);
 273         pxa27x_set_i2c_power_info(NULL);
 274         gpiod_add_lookup_table(&csb726_mci_gpio_table);
 275         pxa_set_mci_info(&csb726_mci);
 276         pxa_set_ohci_info(&csb726_ohci_platform_data);
 277         pxa_set_ac97_info(NULL);
 278
 279         platform_add_devices(devices, ARRAY_SIZE(devices));
 280 }
 281
 282 MACHINE_START(CSB726, "Cogent CSB726")
 283         .atag_offset    = 0x100,
 284         .map_io         = pxa27x_map_io,
 285         .nr_irqs        = PXA_NR_IRQS,
 286         .init_irq       = pxa27x_init_irq,
 287         .handle_irq       = pxa27x_handle_irq,
 288         .init_machine   = csb726_init,
 289         .init_time      = pxa_timer_init,
 290         .restart        = pxa_restart,
 291 MACHINE_END