1 /* 2 * bur_am335x_common.h 3 * 4 * common parts used by B&R AM335x based boards 5 * 6 * Copyright (C) 2013 Hannes Schmelzer <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 BUR_COMMON_ENV \ 16 "usbscript=usb start && fatload usb 0 0x80000000 usbscript.img && source\0" \ 17 "brdefaultip=if test -r ${ipaddr}; then; else" \ 18 " setenv ipaddr 192.168.60.1; setenv serverip 192.168.60.254;" \ 19 " setenv gatewayip 192.168.60.254; setenv netmask 255.255.255.0; fi;\0" \ 20 "netconsole=echo switching to network console ...; " \ 21 "if dhcp; then; else run brdefaultip; fi; setenv ncip ${serverip}; " \ 22 "setcurs 1 9; lcdputs myip; setcurs 10 9; lcdputs ${ipaddr};" \ 23 "setcurs 1 10;lcdputs serverip; setcurs 10 10; lcdputs ${serverip};" \ 24 "setenv stdout nc;setenv stdin nc;setenv stderr nc\0" 25 26 #define CONFIG_PREBOOT "run brdefaultip" 27 #define CONFIG_CMD_TIME 28 29 30 #define CONFIG_AM33XX 31 #define CONFIG_OMAP 32 #define CONFIG_OMAP_COMMON 33 #define CONFIG_BOARD_LATE_INIT 34 #define CONFIG_SYS_CACHELINE_SIZE 64 35 #define CONFIG_MAX_RAM_BANK_SIZE (1024 << 20) /* 1GB */ 36 37 /* Timer information */ 38 #define CONFIG_SYS_PTV 2 /* Divisor: 2^(PTV+1) => 8 */ 39 #define CONFIG_SYS_TIMERBASE 0x48040000 /* Use Timer2 */ 40 #define CONFIG_SPL_AM33XX_ENABLE_RTC32K_OSC /* enable 32kHz OSC at bootime */ 41 #define CONFIG_SPL_POWER_SUPPORT 42 #define CONFIG_POWER_TPS65217 43 44 #define CONFIG_SYS_NO_FLASH /* have no NOR-flash */ 45 46 #include <asm/arch/omap.h> 47 48 /* NS16550 Configuration */ 49 #define CONFIG_SYS_NS16550 50 #define CONFIG_SYS_NS16550_SERIAL 51 #define CONFIG_SYS_NS16550_REG_SIZE (-4) 52 #define CONFIG_SYS_NS16550_CLK 48000000 53 #define CONFIG_SYS_NS16550_COM1 0x44e09000 /* UART0 */ 54 #define CONFIG_BAUDRATE 115200 55 56 /* Network defines */ 57 #define CONFIG_CMD_DHCP 58 #define CONFIG_BOOTP_DNS /* Configurable parts of CMD_DHCP */ 59 #define CONFIG_BOOTP_SEND_HOSTNAME 60 #define CONFIG_BOOTP_GATEWAY 61 #define CONFIG_BOOTP_SUBNETMASK 62 #define CONFIG_NET_RETRY_COUNT 2 63 #define CONFIG_CMD_PING 64 #define CONFIG_DRIVER_TI_CPSW /* Driver for IP block */ 65 #define CONFIG_MII /* Required in net/eth.c */ 66 #define CONFIG_SPL_ETH_SUPPORT 67 #define CONFIG_PHYLIB 68 #define CONFIG_PHY_NATSEMI 69 #define CONFIG_SPL_NET_SUPPORT 70 #define CONFIG_SPL_ENV_SUPPORT /* used for a fetching MAC-Address */ 71 #define CONFIG_SPL_NET_VCI_STRING "AM335x U-Boot SPL" 72 /* Network console */ 73 #define CONFIG_NETCONSOLE 1 74 #define CONFIG_BOOTP_MAY_FAIL /* if we don't have DHCP environment */ 75 /* 76 * SPL related defines. The Public RAM memory map the ROM defines the 77 * area between 0x402F0400 and 0x4030B800 as a download area and 78 * 0x4030B800 to 0x4030CE00 as a public stack area. The ROM also 79 * supports X-MODEM loading via UART, and we leverage this and then use 80 * Y-MODEM to load u-boot.img, when booted over UART. 81 */ 82 #define CONFIG_SPL_TEXT_BASE 0x402F0400 83 #define CONFIG_SPL_MAX_SIZE (0x4030B800 - CONFIG_SPL_TEXT_BASE) 84 85 /* 86 * Since SPL did pll and ddr initialization for us, 87 * we don't need to do it twice. 88 */ 89 #if !defined(CONFIG_SPL_BUILD) && !defined(CONFIG_NOR_BOOT) 90 #define CONFIG_SKIP_LOWLEVEL_INIT 91 #endif /* !CONFIG_SPL_BUILD, ... */ 92 /* 93 * Our DDR memory always starts at 0x80000000 and U-Boot shall have 94 * relocated itself to higher in memory by the time this value is used. 95 */ 96 #define CONFIG_SYS_LOAD_ADDR 0x80000000 97 /* 98 * ---------------------------------------------------------------------------- 99 * DDR information. We say (for simplicity) that we have 1 bank, 100 * always, even when we have more. We always start at 0x80000000, 101 * and we place the initial stack pointer in our SRAM. 102 */ 103 #define CONFIG_NR_DRAM_BANKS 1 104 #define CONFIG_SYS_SDRAM_BASE 0x80000000 105 #define CONFIG_SYS_INIT_SP_ADDR (NON_SECURE_SRAM_END - \ 106 GENERATED_GBL_DATA_SIZE) 107 108 /* I2C */ 109 #define CONFIG_SYS_I2C 110 #define CONFIG_SYS_OMAP24_I2C_SPEED 100000 111 #define CONFIG_SYS_OMAP24_I2C_SLAVE 1 112 #define CONFIG_SYS_I2C_OMAP24XX 113 #define CONFIG_CMD_I2C 114 /* GPIO */ 115 #define CONFIG_OMAP_GPIO 116 /* 117 * ---------------------------------------------------------------------------- 118 * The following are general good-enough settings for U-Boot. We set a 119 * large malloc pool as we generally have a lot of DDR, and we opt for 120 * function over binary size in the main portion of U-Boot as this is 121 * generally easily constrained later if needed. We enable the config 122 * options that give us information in the environment about what board 123 * we are on so we do not need to rely on the command prompt. We set a 124 * console baudrate of 115200 and use the default baud rate table. 125 */ 126 #define CONFIG_SYS_MALLOC_LEN (5120 << 10) 127 #define CONFIG_SYS_HUSH_PARSER 128 #define CONFIG_SYS_CONSOLE_INFO_QUIET 129 #define CONFIG_ENV_OVERWRITE /* Overwrite ethaddr / serial# */ 130 #define CONFIG_SYS_CONSOLE_IS_IN_ENV 131 #define CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE 132 133 /* As stated above, the following choices are optional. */ 134 #define CONFIG_SYS_LONGHELP 135 #define CONFIG_AUTO_COMPLETE 136 #define CONFIG_CMDLINE_EDITING 137 #define CONFIG_VERSION_VARIABLE 138 139 /* We set the max number of command args high to avoid HUSH bugs. */ 140 #define CONFIG_SYS_MAXARGS 64 141 142 /* Console I/O Buffer Size */ 143 #define CONFIG_SYS_CBSIZE 512 144 /* Print Buffer Size */ 145 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE +\ 146 sizeof(CONFIG_SYS_PROMPT) + 16) 147 /* Boot Argument Buffer Size */ 148 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE 149 150 /* 151 * Our platforms make use of SPL to initalize the hardware (primarily 152 * memory) enough for full U-Boot to be loaded. We also support Falcon 153 * Mode so that the Linux kernel can be booted directly from SPL 154 * instead, if desired. We make use of the general SPL framework found 155 * under common/spl/. Given our generally common memory map, we set a 156 * number of related defaults and sizes here. 157 */ 158 #define CONFIG_SPL_FRAMEWORK 159 /* 160 * Place the image at the start of the ROM defined image space. 161 * We limit our size to the ROM-defined downloaded image area, and use the 162 * rest of the space for stack. We load U-Boot itself into memory at 163 * 0x80800000 for legacy reasons (to not conflict with older SPLs). We 164 * have our BSS be placed 1MiB after this, to allow for the default 165 * Linux kernel address of 0x80008000 to work, in the Falcon Mode case. 166 * We have the SPL malloc pool at the end of the BSS area. 167 * 168 * ---------------------------------------------------------------------------- 169 */ 170 #undef CONFIG_SYS_TEXT_BASE 171 #define CONFIG_SYS_TEXT_BASE 0x80800000 172 #define CONFIG_SPL_BSS_START_ADDR 0x80A00000 173 #define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */ 174 #define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SPL_BSS_START_ADDR + \ 175 CONFIG_SPL_BSS_MAX_SIZE) 176 #define CONFIG_SYS_SPL_MALLOC_SIZE CONFIG_SYS_MALLOC_LEN 177 178 /* General parts of the framework, required. */ 179 #define CONFIG_SPL_I2C_SUPPORT 180 #define CONFIG_SPL_LIBCOMMON_SUPPORT 181 #define CONFIG_SPL_LIBGENERIC_SUPPORT 182 #define CONFIG_SPL_SERIAL_SUPPORT 183 #define CONFIG_SPL_BOARD_INIT 184 #define CONFIG_SPL_YMODEM_SUPPORT 185 #define CONFIG_SPL_LDSCRIPT "$(CPUDIR)/am33xx/u-boot-spl.lds" 186 187 #endif /* ! __BUR_AM335X_COMMON_H__ */ 188