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__ */ 197