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 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_ADDR 1 55 #define CONFIG_PHY_NATSEMI 56 #define CONFIG_SPL_NET_SUPPORT 57 #define CONFIG_SPL_ENV_SUPPORT /* used for a fetching MAC-Address */ 58 #define CONFIG_SPL_NET_VCI_STRING "AM335x U-Boot SPL" 59 60 /* 61 * SPL related defines. The Public RAM memory map the ROM defines the 62 * area between 0x402F0400 and 0x4030B800 as a download area and 63 * 0x4030B800 to 0x4030CE00 as a public stack area. The ROM also 64 * supports X-MODEM loading via UART, and we leverage this and then use 65 * Y-MODEM to load u-boot.img, when booted over UART. 66 */ 67 #define CONFIG_SPL_TEXT_BASE 0x402F0400 68 #define CONFIG_SPL_MAX_SIZE (0x4030B800 - CONFIG_SPL_TEXT_BASE) 69 70 /* 71 * Since SPL did pll and ddr initialization for us, 72 * we don't need to do it twice. 73 */ 74 #if !defined(CONFIG_SPL_BUILD) && !defined(CONFIG_NOR_BOOT) 75 #define CONFIG_SKIP_LOWLEVEL_INIT 76 #endif /* !CONFIG_SPL_BUILD, ... */ 77 /* 78 * Our DDR memory always starts at 0x80000000 and U-Boot shall have 79 * relocated itself to higher in memory by the time this value is used. 80 */ 81 #define CONFIG_SYS_LOAD_ADDR 0x80000000 82 /* 83 * ---------------------------------------------------------------------------- 84 * DDR information. We say (for simplicity) that we have 1 bank, 85 * always, even when we have more. We always start at 0x80000000, 86 * and we place the initial stack pointer in our SRAM. 87 */ 88 #define CONFIG_NR_DRAM_BANKS 1 89 #define CONFIG_SYS_SDRAM_BASE 0x80000000 90 #define CONFIG_SYS_INIT_SP_ADDR (NON_SECURE_SRAM_END - \ 91 GENERATED_GBL_DATA_SIZE) 92 93 /* I2C */ 94 #define CONFIG_SYS_I2C 95 #define CONFIG_SYS_OMAP24_I2C_SPEED 100000 96 #define CONFIG_SYS_OMAP24_I2C_SLAVE 1 97 #define CONFIG_SYS_I2C_OMAP24XX 98 99 /* GPIO */ 100 #define CONFIG_OMAP_GPIO 101 #define CONFIG_CMD_GPIO 102 /* 103 * ---------------------------------------------------------------------------- 104 * The following are general good-enough settings for U-Boot. We set a 105 * large malloc pool as we generally have a lot of DDR, and we opt for 106 * function over binary size in the main portion of U-Boot as this is 107 * generally easily constrained later if needed. We enable the config 108 * options that give us information in the environment about what board 109 * we are on so we do not need to rely on the command prompt. We set a 110 * console baudrate of 115200 and use the default baud rate table. 111 */ 112 #define CONFIG_SYS_MALLOC_LEN (1024 << 10) 113 #define CONFIG_SYS_HUSH_PARSER 114 #define CONFIG_SYS_PROMPT "U-Boot (BuR V2.0)# " 115 #define CONFIG_SYS_CONSOLE_INFO_QUIET 116 #define CONFIG_ENV_OVERWRITE /* Overwrite ethaddr / serial# */ 117 118 /* As stated above, the following choices are optional. */ 119 #define CONFIG_SYS_LONGHELP 120 #define CONFIG_AUTO_COMPLETE 121 #define CONFIG_CMDLINE_EDITING 122 #define CONFIG_VERSION_VARIABLE 123 124 /* We set the max number of command args high to avoid HUSH bugs. */ 125 #define CONFIG_SYS_MAXARGS 64 126 127 /* Console I/O Buffer Size */ 128 #define CONFIG_SYS_CBSIZE 512 129 /* Print Buffer Size */ 130 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE +\ 131 sizeof(CONFIG_SYS_PROMPT) + 16) 132 /* Boot Argument Buffer Size */ 133 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE 134 /* 135 * For commands to use, we take the default list and add a few other 136 * useful commands. Note that we must have set CONFIG_SYS_NO_FLASH 137 * prior to this include, in order to skip a few commands. When we do 138 * have flash, if we expect these commands they must be enabled in that 139 * config. If desired, a specific list of desired commands can be used 140 * instead. 141 */ 142 #include <config_cmd_default.h> 143 /* undefine commands, which we do not need */ 144 #undef CONFIG_CMD_EDITENV 145 #undef CONFIG_CMD_FPGA 146 #undef CONFIG_CMD_IMI 147 #undef CONFIG_CMD_ITEST 148 #undef CONFIG_CMD_LOADS 149 #undef CONFIG_CMD_LOADB 150 #undef CONFIG_CMD_NFS 151 #undef CONFIG_CMD_SETGETDCR 152 #undef CONFIG_CMD_XIMG 153 #undef CONFIG_CMD_CRC32 154 /* define command we need always */ 155 #define CONFIG_CMD_ECHO 156 #define CONFIG_CMD_SOURCE 157 158 /* 159 * Our platforms make use of SPL to initalize the hardware (primarily 160 * memory) enough for full U-Boot to be loaded. We also support Falcon 161 * Mode so that the Linux kernel can be booted directly from SPL 162 * instead, if desired. We make use of the general SPL framework found 163 * under common/spl/. Given our generally common memory map, we set a 164 * number of related defaults and sizes here. 165 */ 166 #define CONFIG_SPL 167 #define CONFIG_SPL_FRAMEWORK 168 /* 169 * Place the image at the start of the ROM defined image space. 170 * We limit our size to the ROM-defined downloaded image area, and use the 171 * rest of the space for stack. We load U-Boot itself into memory at 172 * 0x80800000 for legacy reasons (to not conflict with older SPLs). We 173 * have our BSS be placed 1MiB after this, to allow for the default 174 * Linux kernel address of 0x80008000 to work, in the Falcon Mode case. 175 * We have the SPL malloc pool at the end of the BSS area. 176 * 177 * ---------------------------------------------------------------------------- 178 */ 179 #define CONFIG_SPL_STACK CONFIG_SYS_INIT_SP_ADDR 180 #undef CONFIG_SYS_TEXT_BASE 181 #define CONFIG_SYS_TEXT_BASE 0x80800000 182 #define CONFIG_SPL_BSS_START_ADDR 0x80A00000 183 #define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */ 184 #define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SPL_BSS_START_ADDR + \ 185 CONFIG_SPL_BSS_MAX_SIZE) 186 #define CONFIG_SYS_SPL_MALLOC_SIZE CONFIG_SYS_MALLOC_LEN 187 188 /* General parts of the framework, required. */ 189 #define CONFIG_SPL_I2C_SUPPORT 190 #define CONFIG_SPL_LIBCOMMON_SUPPORT 191 #define CONFIG_SPL_LIBGENERIC_SUPPORT 192 #define CONFIG_SPL_SERIAL_SUPPORT 193 #define CONFIG_SPL_BOARD_INIT 194 #define CONFIG_SPL_YMODEM_SUPPORT 195 #define CONFIG_SPL_LDSCRIPT "$(CPUDIR)/am33xx/u-boot-spl.lds" 196 197 #endif /* ! __BUR_AM335X_COMMON_H__ */ 198