root/arch/arm/mach-davinci/board-sffsdr.c

DEFINITIONS

1. sffsdr_init_i2c
2. davinci_sffsdr_map_io
3. davinci_sffsdr_init

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Lyrtech SFFSDR board support.
   4  *
   5  * Copyright (C) 2008 Philip Balister, OpenSDR <philip@opensdr.com>
   6  * Copyright (C) 2008 Lyrtech <www.lyrtech.com>
   7  *
   8  * Based on DV-EVM platform, original copyright follows:
   9  *
  10  * Copyright (C) 2007 MontaVista Software, Inc.
  11  */
  12 
  13 #include <linux/init.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/i2c.h>
  16 #include <linux/property.h>
  17 #include <linux/mtd/mtd.h>
  18 #include <linux/mtd/rawnand.h>
  19 #include <linux/mtd/partitions.h>
  20 
  21 #include <asm/mach-types.h>
  22 #include <asm/mach/arch.h>
  23 #include <asm/mach/flash.h>
  24 
  25 #include <mach/common.h>
  26 #include <linux/platform_data/i2c-davinci.h>
  27 #include <mach/serial.h>
  28 #include <mach/mux.h>
  29 #include <linux/platform_data/usb-davinci.h>
  30 
  31 #include "davinci.h"
  32 
  33 #define SFFSDR_PHY_ID           "davinci_mdio-0:01"
  34 static struct mtd_partition davinci_sffsdr_nandflash_partition[] = {
  35         /* U-Boot Environment: Block 0
  36          * UBL:                Block 1
  37          * U-Boot:             Blocks 6-7 (256 kb)
  38          * Integrity Kernel:   Blocks 8-31 (3 Mb)
  39          * Integrity Data:     Blocks 100-END
  40          */
  41         {
  42                 .name           = "Linux Kernel",
  43                 .offset         = 32 * SZ_128K,
  44                 .size           = 16 * SZ_128K, /* 2 Mb */
  45                 .mask_flags     = MTD_WRITEABLE, /* Force read-only */
  46         },
  47         {
  48                 .name           = "Linux ROOT",
  49                 .offset         = MTDPART_OFS_APPEND,
  50                 .size           = 256 * SZ_128K, /* 32 Mb */
  51                 .mask_flags     = 0, /* R/W */
  52         },
  53 };
  54 
  55 static struct flash_platform_data davinci_sffsdr_nandflash_data = {
  56         .parts          = davinci_sffsdr_nandflash_partition,
  57         .nr_parts       = ARRAY_SIZE(davinci_sffsdr_nandflash_partition),
  58 };
  59 
  60 static struct resource davinci_sffsdr_nandflash_resource[] = {
  61         {
  62                 .start          = DM644X_ASYNC_EMIF_DATA_CE0_BASE,
  63                 .end            = DM644X_ASYNC_EMIF_DATA_CE0_BASE + SZ_16M - 1,
  64                 .flags          = IORESOURCE_MEM,
  65         }, {
  66                 .start          = DM644X_ASYNC_EMIF_CONTROL_BASE,
  67                 .end            = DM644X_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
  68                 .flags          = IORESOURCE_MEM,
  69         },
  70 };
  71 
  72 static struct platform_device davinci_sffsdr_nandflash_device = {
  73         .name           = "davinci_nand", /* Name of driver */
  74         .id             = 0,
  75         .dev            = {
  76                 .platform_data  = &davinci_sffsdr_nandflash_data,
  77         },
  78         .num_resources  = ARRAY_SIZE(davinci_sffsdr_nandflash_resource),
  79         .resource       = davinci_sffsdr_nandflash_resource,
  80 };
  81 
  82 static const struct property_entry eeprom_properties[] = {
  83         PROPERTY_ENTRY_U32("pagesize", 32),
  84         { }
  85 };
  86 
  87 static struct i2c_board_info __initdata i2c_info[] =  {
  88         {
  89                 I2C_BOARD_INFO("24c64", 0x50),
  90                 .properties = eeprom_properties,
  91         },
  92         /* Other I2C devices:
  93          * MSP430,  addr 0x23 (not used)
  94          * PCA9543, addr 0x70 (setup done by U-Boot)
  95          * ADS7828, addr 0x48 (ADC for voltage monitoring.)
  96          */
  97 };
  98 
  99 static struct davinci_i2c_platform_data i2c_pdata = {
 100         .bus_freq       = 20 /* kHz */,
 101         .bus_delay      = 100 /* usec */,
 102 };
 103 
 104 static void __init sffsdr_init_i2c(void)
 105 {
 106         davinci_init_i2c(&i2c_pdata);
 107         i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));
 108 }
 109 
 110 static struct platform_device *davinci_sffsdr_devices[] __initdata = {
 111         &davinci_sffsdr_nandflash_device,
 112 };
 113 
 114 static void __init davinci_sffsdr_map_io(void)
 115 {
 116         dm644x_init();
 117 }
 118 
 119 static __init void davinci_sffsdr_init(void)
 120 {
 121         struct davinci_soc_info *soc_info = &davinci_soc_info;
 122 
 123         dm644x_register_clocks();
 124 
 125         dm644x_init_devices();
 126 
 127         platform_add_devices(davinci_sffsdr_devices,
 128                              ARRAY_SIZE(davinci_sffsdr_devices));
 129         sffsdr_init_i2c();
 130         davinci_serial_init(dm644x_serial_device);
 131         soc_info->emac_pdata->phy_id = SFFSDR_PHY_ID;
 132         davinci_setup_usb(0, 0); /* We support only peripheral mode. */
 133 
 134         /* mux VLYNQ pins */
 135         davinci_cfg_reg(DM644X_VLYNQEN);
 136         davinci_cfg_reg(DM644X_VLYNQWD);
 137 }
 138 
 139 MACHINE_START(SFFSDR, "Lyrtech SFFSDR")
 140         .atag_offset  = 0x100,
 141         .map_io       = davinci_sffsdr_map_io,
 142         .init_irq     = dm644x_init_irq,
 143         .init_time      = dm644x_init_time,
 144         .init_machine = davinci_sffsdr_init,
 145         .init_late      = davinci_init_late,
 146         .dma_zone_size  = SZ_128M,
 147 MACHINE_END