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

   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 const struct software_node eeprom_node = {
  88         .properties = eeprom_properties,
  89 };
  90
  91 static struct i2c_board_info __initdata i2c_info[] =  {
  92         {
  93                 I2C_BOARD_INFO("24c64", 0x50),
  94                 .swnode = &eeprom_node,
  95         },
  96         /* Other I2C devices:
  97          * MSP430,  addr 0x23 (not used)
  98          * PCA9543, addr 0x70 (setup done by U-Boot)
  99          * ADS7828, addr 0x48 (ADC for voltage monitoring.)
 100          */
 101 };
 102
 103 static struct davinci_i2c_platform_data i2c_pdata = {
 104         .bus_freq       = 20 /* kHz */,
 105         .bus_delay      = 100 /* usec */,
 106 };
 107
 108 static void __init sffsdr_init_i2c(void)
 109 {
 110         davinci_init_i2c(&i2c_pdata);
 111         i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));
 112 }
 113
 114 static struct platform_device *davinci_sffsdr_devices[] __initdata = {
 115         &davinci_sffsdr_nandflash_device,
 116 };
 117
 118 static void __init davinci_sffsdr_map_io(void)
 119 {
 120         dm644x_init();
 121 }
 122
 123 static __init void davinci_sffsdr_init(void)
 124 {
 125         struct davinci_soc_info *soc_info = &davinci_soc_info;
 126
 127         dm644x_register_clocks();
 128
 129         dm644x_init_devices();
 130
 131         platform_add_devices(davinci_sffsdr_devices,
 132                              ARRAY_SIZE(davinci_sffsdr_devices));
 133         sffsdr_init_i2c();
 134         davinci_serial_init(dm644x_serial_device);
 135         soc_info->emac_pdata->phy_id = SFFSDR_PHY_ID;
 136         davinci_setup_usb(0, 0); /* We support only peripheral mode. */
 137
 138         /* mux VLYNQ pins */
 139         davinci_cfg_reg(DM644X_VLYNQEN);
 140         davinci_cfg_reg(DM644X_VLYNQWD);
 141 }
 142
 143 MACHINE_START(SFFSDR, "Lyrtech SFFSDR")
 144         .atag_offset  = 0x100,
 145         .map_io       = davinci_sffsdr_map_io,
 146         .init_irq     = dm644x_init_irq,
 147         .init_time      = dm644x_init_time,
 148         .init_machine = davinci_sffsdr_init,
 149         .init_late      = davinci_init_late,
 150         .dma_zone_size  = SZ_128M,
 151 MACHINE_END