include/configs/bur_am335x_common.h

   1 /*
   2  * bur_am335x_common.h
   3  *
   4  * common parts used by B&R AM335x based boards
   5  *
   6  * Copyright (C) 2013 Hannes Petermaier <oe5hpm@oevsv.at> -
   7  * Bernecker & Rainer Industrieelektronik GmbH - http://www.br-automation.com
   8  *
   9  * SPDX-License-Identifier:        GPL-2.0+
  10  */
  11
  12 #ifndef __BUR_AM335X_COMMON_H__
  13 #define __BUR_AM335X_COMMON_H__
  14 /* ------------------------------------------------------------------------- */
  15 #define CONFIG_AM33XX
  16 #define CONFIG_OMAP
  17 #define CONFIG_OMAP_COMMON
  18 #define CONFIG_BOARD_LATE_INIT
  19 #define CONFIG_SYS_CACHELINE_SIZE       64
  20 #define CONFIG_MAX_RAM_BANK_SIZE        (1024 << 20)    /* 1GB */
  21
  22 /* Timer information */
  23 #define CONFIG_SYS_PTV                  2       /* Divisor: 2^(PTV+1) => 8 */
  24 #define CONFIG_SYS_TIMERBASE            0x48040000      /* Use Timer2 */
  25 #define CONFIG_SPL_AM33XX_ENABLE_RTC32K_OSC     /* enable 32kHz OSC at bootime */
  26 #define CONFIG_SPL_POWER_SUPPORT
  27 #define CONFIG_POWER_TPS65217
  28
  29 #define CONFIG_SYS_NO_FLASH             /* have no NOR-flash */
  30
  31 #include <asm/arch/omap.h>
  32
  33 /* NS16550 Configuration */
  34 #define CONFIG_SYS_NS16550
  35 #define CONFIG_SYS_NS16550_SERIAL
  36 #define CONFIG_SYS_NS16550_REG_SIZE     (-4)
  37 #define CONFIG_SYS_NS16550_CLK          48000000
  38 #define CONFIG_SYS_NS16550_COM1         0x44e09000      /* UART0 */
  39 #define CONFIG_BAUDRATE                 115200
  40
  41 /* Network defines */
  42 #define CONFIG_CMD_NET                  /* 'bootp' and 'tftp' */
  43 #define CONFIG_CMD_DHCP
  44 #define CONFIG_BOOTP_DNS                /* Configurable parts of CMD_DHCP */
  45 #define CONFIG_BOOTP_SEND_HOSTNAME
  46 #define CONFIG_BOOTP_GATEWAY
  47 #define CONFIG_BOOTP_SUBNETMASK
  48 #define CONFIG_NET_RETRY_COUNT          4
  49 #define CONFIG_CMD_PING
  50 #define CONFIG_DRIVER_TI_CPSW           /* Driver for IP block */
  51 #define CONFIG_MII                      /* Required in net/eth.c */
  52 #define CONFIG_SPL_ETH_SUPPORT
  53 #define CONFIG_PHYLIB
  54 #define CONFIG_PHY_NATSEMI
  55 #define CONFIG_SPL_NET_SUPPORT
  56 #define CONFIG_SPL_ENV_SUPPORT          /* used for a fetching MAC-Address */
  57 #define CONFIG_SPL_NET_VCI_STRING       "AM335x U-Boot SPL"
  58
  59 /*
  60  * SPL related defines.  The Public RAM memory map the ROM defines the
  61  * area between 0x402F0400 and 0x4030B800 as a download area and
  62  * 0x4030B800 to 0x4030CE00 as a public stack area.  The ROM also
  63  * supports X-MODEM loading via UART, and we leverage this and then use
  64  * Y-MODEM to load u-boot.img, when booted over UART.
  65  */
  66 #define CONFIG_SPL_TEXT_BASE            0x402F0400
  67 #define CONFIG_SPL_MAX_SIZE             (0x4030B800 - CONFIG_SPL_TEXT_BASE)
  68
  69 /*
  70  * Since SPL did pll and ddr initialization for us,
  71  * we don't need to do it twice.
  72  */
  73 #if !defined(CONFIG_SPL_BUILD) && !defined(CONFIG_NOR_BOOT)
  74 #define CONFIG_SKIP_LOWLEVEL_INIT
  75 #endif /* !CONFIG_SPL_BUILD, ... */
  76 /*
  77  * Our DDR memory always starts at 0x80000000 and U-Boot shall have
  78  * relocated itself to higher in memory by the time this value is used.
  79  */
  80 #define CONFIG_SYS_LOAD_ADDR            0x80000000
  81 /*
  82  * ----------------------------------------------------------------------------
  83  * DDR information.  We say (for simplicity) that we have 1 bank,
  84  * always, even when we have more.  We always start at 0x80000000,
  85  * and we place the initial stack pointer in our SRAM.
  86  */
  87 #define CONFIG_NR_DRAM_BANKS            1
  88 #define CONFIG_SYS_SDRAM_BASE           0x80000000
  89 #define CONFIG_SYS_INIT_SP_ADDR         (NON_SECURE_SRAM_END - \
  90                                         GENERATED_GBL_DATA_SIZE)
  91
  92 /* I2C */
  93 #define CONFIG_SYS_I2C
  94 #define CONFIG_SYS_OMAP24_I2C_SPEED     100000
  95 #define CONFIG_SYS_OMAP24_I2C_SLAVE     1
  96 #define CONFIG_SYS_I2C_OMAP24XX
  97
  98 /* GPIO */
  99 #define CONFIG_OMAP_GPIO
 100 #define CONFIG_CMD_GPIO
 101 /*
 102  * ----------------------------------------------------------------------------
 103  * The following are general good-enough settings for U-Boot.  We set a
 104  * large malloc pool as we generally have a lot of DDR, and we opt for
 105  * function over binary size in the main portion of U-Boot as this is
 106  * generally easily constrained later if needed.  We enable the config
 107  * options that give us information in the environment about what board
 108  * we are on so we do not need to rely on the command prompt.  We set a
 109  * console baudrate of 115200 and use the default baud rate table.
 110  */
 111 #define CONFIG_SYS_MALLOC_LEN           (1024 << 10)
 112 #define CONFIG_SYS_HUSH_PARSER
 113 #define CONFIG_SYS_PROMPT               "U-Boot (BuR V2.0)# "
 114 #define CONFIG_SYS_CONSOLE_INFO_QUIET
 115 #define CONFIG_ENV_OVERWRITE            /* Overwrite ethaddr / serial# */
 116
 117 /* As stated above, the following choices are optional. */
 118 #define CONFIG_SYS_LONGHELP
 119 #define CONFIG_AUTO_COMPLETE
 120 #define CONFIG_CMDLINE_EDITING
 121 #define CONFIG_VERSION_VARIABLE
 122
 123 /* We set the max number of command args high to avoid HUSH bugs. */
 124 #define CONFIG_SYS_MAXARGS              64
 125
 126 /* Console I/O Buffer Size */
 127 #define CONFIG_SYS_CBSIZE               512
 128 /* Print Buffer Size */
 129 #define CONFIG_SYS_PBSIZE               (CONFIG_SYS_CBSIZE +\
 130                                         sizeof(CONFIG_SYS_PROMPT) + 16)
 131 /* Boot Argument Buffer Size */
 132 #define CONFIG_SYS_BARGSIZE             CONFIG_SYS_CBSIZE
 133 /*
 134  * For commands to use, we take the default list and add a few other
 135  * useful commands.  Note that we must have set CONFIG_SYS_NO_FLASH
 136  * prior to this include, in order to skip a few commands.  When we do
 137  * have flash, if we expect these commands they must be enabled in that
 138  * config.  If desired, a specific list of desired commands can be used
 139  * instead.
 140  */
 141 #include <config_cmd_default.h>
 142 /* undefine commands, which we do not need */
 143 #undef CONFIG_CMD_EDITENV
 144 #undef CONFIG_CMD_FPGA
 145 #undef CONFIG_CMD_IMI
 146 #undef CONFIG_CMD_ITEST
 147 #undef CONFIG_CMD_LOADS
 148 #undef CONFIG_CMD_LOADB
 149 #undef CONFIG_CMD_NFS
 150 #undef CONFIG_CMD_SETGETDCR
 151 #undef CONFIG_CMD_XIMG
 152 #undef CONFIG_CMD_CRC32
 153 /* define command we need always */
 154 #define CONFIG_CMD_ECHO
 155 #define CONFIG_CMD_SOURCE
 156
 157 /*
 158  * Our platforms make use of SPL to initalize the hardware (primarily
 159  * memory) enough for full U-Boot to be loaded.  We also support Falcon
 160  * Mode so that the Linux kernel can be booted directly from SPL
 161  * instead, if desired.  We make use of the general SPL framework found
 162  * under common/spl/.  Given our generally common memory map, we set a
 163  * number of related defaults and sizes here.
 164  */
 165 #define CONFIG_SPL
 166 #define CONFIG_SPL_FRAMEWORK
 167 /*
 168  * Place the image at the start of the ROM defined image space.
 169  * We limit our size to the ROM-defined downloaded image area, and use the
 170  * rest of the space for stack.  We load U-Boot itself into memory at
 171  * 0x80800000 for legacy reasons (to not conflict with older SPLs).  We
 172  * have our BSS be placed 1MiB after this, to allow for the default
 173  * Linux kernel address of 0x80008000 to work, in the Falcon Mode case.
 174  * We have the SPL malloc pool at the end of the BSS area.
 175  *
 176  * ----------------------------------------------------------------------------
 177  */
 178 #define CONFIG_SPL_STACK                CONFIG_SYS_INIT_SP_ADDR
 179 #undef  CONFIG_SYS_TEXT_BASE
 180 #define CONFIG_SYS_TEXT_BASE            0x80800000
 181 #define CONFIG_SPL_BSS_START_ADDR       0x80A00000
 182 #define CONFIG_SPL_BSS_MAX_SIZE         0x80000         /* 512 KB */
 183 #define CONFIG_SYS_SPL_MALLOC_START     (CONFIG_SPL_BSS_START_ADDR + \
 184                                         CONFIG_SPL_BSS_MAX_SIZE)
 185 #define CONFIG_SYS_SPL_MALLOC_SIZE      CONFIG_SYS_MALLOC_LEN
 186
 187 /* General parts of the framework, required. */
 188 #define CONFIG_SPL_I2C_SUPPORT
 189 #define CONFIG_SPL_LIBCOMMON_SUPPORT
 190 #define CONFIG_SPL_LIBGENERIC_SUPPORT
 191 #define CONFIG_SPL_SERIAL_SUPPORT
 192 #define CONFIG_SPL_BOARD_INIT
 193 #define CONFIG_SPL_YMODEM_SUPPORT
 194 #define CONFIG_SPL_LDSCRIPT             "$(CPUDIR)/am33xx/u-boot-spl.lds"
 195
 196 #endif  /* ! __BUR_AM335X_COMMON_H__ */