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_SYS_GENERIC_BOARD 16 17 #define CONFIG_AM33XX 18 #define CONFIG_OMAP 19 #define CONFIG_OMAP_COMMON 20 #define CONFIG_BOARD_LATE_INIT 21 #define CONFIG_SYS_CACHELINE_SIZE 64 22 #define CONFIG_MAX_RAM_BANK_SIZE (1024 << 20) /* 1GB */ 23 24 /* Timer information */ 25 #define CONFIG_SYS_PTV 2 /* Divisor: 2^(PTV+1) => 8 */ 26 #define CONFIG_SYS_TIMERBASE 0x48040000 /* Use Timer2 */ 27 #define CONFIG_SPL_AM33XX_ENABLE_RTC32K_OSC /* enable 32kHz OSC at bootime */ 28 #define CONFIG_SPL_POWER_SUPPORT 29 #define CONFIG_POWER_TPS65217 30 31 #define CONFIG_SYS_NO_FLASH /* have no NOR-flash */ 32 33 #include <asm/arch/omap.h> 34 35 /* NS16550 Configuration */ 36 #define CONFIG_SYS_NS16550 37 #define CONFIG_SYS_NS16550_SERIAL 38 #define CONFIG_SYS_NS16550_REG_SIZE (-4) 39 #define CONFIG_SYS_NS16550_CLK 48000000 40 #define CONFIG_SYS_NS16550_COM1 0x44e09000 /* UART0 */ 41 #define CONFIG_BAUDRATE 115200 42 43 /* Network defines */ 44 #define CONFIG_CMD_NET /* 'bootp' and 'tftp' */ 45 #define CONFIG_CMD_DHCP 46 #define CONFIG_BOOTP_DNS /* Configurable parts of CMD_DHCP */ 47 #define CONFIG_BOOTP_SEND_HOSTNAME 48 #define CONFIG_BOOTP_GATEWAY 49 #define CONFIG_BOOTP_SUBNETMASK 50 #define CONFIG_NET_RETRY_COUNT 4 51 #define CONFIG_CMD_PING 52 #define CONFIG_DRIVER_TI_CPSW /* Driver for IP block */ 53 #define CONFIG_MII /* Required in net/eth.c */ 54 #define CONFIG_SPL_ETH_SUPPORT 55 #define CONFIG_PHYLIB 56 #define CONFIG_PHY_NATSEMI 57 #define CONFIG_SPL_NET_SUPPORT 58 #define CONFIG_SPL_ENV_SUPPORT /* used for a fetching MAC-Address */ 59 #define CONFIG_SPL_NET_VCI_STRING "AM335x U-Boot SPL" 60 61 /* 62 * SPL related defines. The Public RAM memory map the ROM defines the 63 * area between 0x402F0400 and 0x4030B800 as a download area and 64 * 0x4030B800 to 0x4030CE00 as a public stack area. The ROM also 65 * supports X-MODEM loading via UART, and we leverage this and then use 66 * Y-MODEM to load u-boot.img, when booted over UART. 67 */ 68 #define CONFIG_SPL_TEXT_BASE 0x402F0400 69 #define CONFIG_SPL_MAX_SIZE (0x4030B800 - CONFIG_SPL_TEXT_BASE) 70 71 /* 72 * Since SPL did pll and ddr initialization for us, 73 * we don't need to do it twice. 74 */ 75 #if !defined(CONFIG_SPL_BUILD) && !defined(CONFIG_NOR_BOOT) 76 #define CONFIG_SKIP_LOWLEVEL_INIT 77 #endif /* !CONFIG_SPL_BUILD, ... */ 78 /* 79 * Our DDR memory always starts at 0x80000000 and U-Boot shall have 80 * relocated itself to higher in memory by the time this value is used. 81 */ 82 #define CONFIG_SYS_LOAD_ADDR 0x80000000 83 /* 84 * ---------------------------------------------------------------------------- 85 * DDR information. We say (for simplicity) that we have 1 bank, 86 * always, even when we have more. We always start at 0x80000000, 87 * and we place the initial stack pointer in our SRAM. 88 */ 89 #define CONFIG_NR_DRAM_BANKS 1 90 #define CONFIG_SYS_SDRAM_BASE 0x80000000 91 #define CONFIG_SYS_INIT_SP_ADDR (NON_SECURE_SRAM_END - \ 92 GENERATED_GBL_DATA_SIZE) 93 94 /* I2C */ 95 #define CONFIG_SYS_I2C 96 #define CONFIG_SYS_OMAP24_I2C_SPEED 100000 97 #define CONFIG_SYS_OMAP24_I2C_SLAVE 1 98 #define CONFIG_SYS_I2C_OMAP24XX 99 #define CONFIG_CMD_I2C 100 /* GPIO */ 101 #define CONFIG_OMAP_GPIO 102 #define CONFIG_CMD_GPIO 103 /* 104 * ---------------------------------------------------------------------------- 105 * The following are general good-enough settings for U-Boot. We set a 106 * large malloc pool as we generally have a lot of DDR, and we opt for 107 * function over binary size in the main portion of U-Boot as this is 108 * generally easily constrained later if needed. We enable the config 109 * options that give us information in the environment about what board 110 * we are on so we do not need to rely on the command prompt. We set a 111 * console baudrate of 115200 and use the default baud rate table. 112 */ 113 #define CONFIG_SYS_MALLOC_LEN (1024 << 10) 114 #define CONFIG_SYS_HUSH_PARSER 115 #define CONFIG_SYS_PROMPT "U-Boot (BuR V2.0)# " 116 #define CONFIG_SYS_CONSOLE_INFO_QUIET 117 #define CONFIG_ENV_OVERWRITE /* Overwrite ethaddr / serial# */ 118 119 /* As stated above, the following choices are optional. */ 120 #define CONFIG_SYS_LONGHELP 121 #define CONFIG_AUTO_COMPLETE 122 #define CONFIG_CMDLINE_EDITING 123 #define CONFIG_VERSION_VARIABLE 124 125 /* We set the max number of command args high to avoid HUSH bugs. */ 126 #define CONFIG_SYS_MAXARGS 64 127 128 /* Console I/O Buffer Size */ 129 #define CONFIG_SYS_CBSIZE 512 130 /* Print Buffer Size */ 131 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE +\ 132 sizeof(CONFIG_SYS_PROMPT) + 16) 133 /* Boot Argument Buffer Size */ 134 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE 135 /* 136 * For commands to use, we take the default list and add a few other 137 * useful commands. Note that we must have set CONFIG_SYS_NO_FLASH 138 * prior to this include, in order to skip a few commands. When we do 139 * have flash, if we expect these commands they must be enabled in that 140 * config. If desired, a specific list of desired commands can be used 141 * instead. 142 */ 143 #include <config_cmd_default.h> 144 /* undefine commands, which we do not need */ 145 #undef CONFIG_CMD_EDITENV 146 #undef CONFIG_CMD_FPGA 147 #undef CONFIG_CMD_IMI 148 #undef CONFIG_CMD_ITEST 149 #undef CONFIG_CMD_LOADS 150 #undef CONFIG_CMD_LOADB 151 #undef CONFIG_CMD_NFS 152 #undef CONFIG_CMD_SETGETDCR 153 #undef CONFIG_CMD_XIMG 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_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__ */ 197