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_SERIAL 50 #define CONFIG_SYS_NS16550_REG_SIZE (-4) 51 #define CONFIG_SYS_NS16550_CLK 48000000 52 #define CONFIG_SYS_NS16550_COM1 0x44e09000 /* UART0 */ 53 #define CONFIG_BAUDRATE 115200 54 55 /* Network defines */ 56 #define CONFIG_CMD_DHCP 57 #define CONFIG_BOOTP_DNS /* Configurable parts of CMD_DHCP */ 58 #define CONFIG_BOOTP_SEND_HOSTNAME 59 #define CONFIG_BOOTP_GATEWAY 60 #define CONFIG_BOOTP_SUBNETMASK 61 #define CONFIG_NET_RETRY_COUNT 2 62 #define CONFIG_CMD_PING 63 #define CONFIG_DRIVER_TI_CPSW /* Driver for IP block */ 64 #define CONFIG_MII /* Required in net/eth.c */ 65 #define CONFIG_SPL_ETH_SUPPORT 66 #define CONFIG_PHYLIB 67 #define CONFIG_PHY_NATSEMI 68 #define CONFIG_SPL_NET_SUPPORT 69 #define CONFIG_SPL_ENV_SUPPORT /* used for a fetching MAC-Address */ 70 #define CONFIG_SPL_NET_VCI_STRING "AM335x U-Boot SPL" 71 /* Network console */ 72 #define CONFIG_NETCONSOLE 1 73 #define CONFIG_BOOTP_MAY_FAIL /* if we don't have DHCP environment */ 74 /* 75 * SPL related defines. The Public RAM memory map the ROM defines the 76 * area between 0x402F0400 and 0x4030B800 as a download area and 77 * 0x4030B800 to 0x4030CE00 as a public stack area. The ROM also 78 * supports X-MODEM loading via UART, and we leverage this and then use 79 * Y-MODEM to load u-boot.img, when booted over UART. 80 */ 81 #define CONFIG_SPL_TEXT_BASE 0x402F0400 82 #define CONFIG_SPL_MAX_SIZE (0x4030B800 - CONFIG_SPL_TEXT_BASE) 83 84 /* 85 * Since SPL did pll and ddr initialization for us, 86 * we don't need to do it twice. 87 */ 88 #if !defined(CONFIG_SPL_BUILD) && !defined(CONFIG_NOR_BOOT) 89 #define CONFIG_SKIP_LOWLEVEL_INIT 90 #endif /* !CONFIG_SPL_BUILD, ... */ 91 /* 92 * Our DDR memory always starts at 0x80000000 and U-Boot shall have 93 * relocated itself to higher in memory by the time this value is used. 94 */ 95 #define CONFIG_SYS_LOAD_ADDR 0x80000000 96 /* 97 * ---------------------------------------------------------------------------- 98 * DDR information. We say (for simplicity) that we have 1 bank, 99 * always, even when we have more. We always start at 0x80000000, 100 * and we place the initial stack pointer in our SRAM. 101 */ 102 #define CONFIG_NR_DRAM_BANKS 1 103 #define CONFIG_SYS_SDRAM_BASE 0x80000000 104 #define CONFIG_SYS_INIT_SP_ADDR (NON_SECURE_SRAM_END - \ 105 GENERATED_GBL_DATA_SIZE) 106 107 /* I2C */ 108 #define CONFIG_SYS_I2C 109 #define CONFIG_SYS_OMAP24_I2C_SPEED 100000 110 #define CONFIG_SYS_OMAP24_I2C_SLAVE 1 111 #define CONFIG_SYS_I2C_OMAP24XX 112 #define CONFIG_CMD_I2C 113 /* GPIO */ 114 #define CONFIG_OMAP_GPIO 115 /* 116 * ---------------------------------------------------------------------------- 117 * The following are general good-enough settings for U-Boot. We set a 118 * large malloc pool as we generally have a lot of DDR, and we opt for 119 * function over binary size in the main portion of U-Boot as this is 120 * generally easily constrained later if needed. We enable the config 121 * options that give us information in the environment about what board 122 * we are on so we do not need to rely on the command prompt. We set a 123 * console baudrate of 115200 and use the default baud rate table. 124 */ 125 #define CONFIG_SYS_MALLOC_LEN (5120 << 10) 126 #define CONFIG_SYS_HUSH_PARSER 127 #define CONFIG_SYS_CONSOLE_INFO_QUIET 128 #define CONFIG_ENV_OVERWRITE /* Overwrite ethaddr / serial# */ 129 #define CONFIG_SYS_CONSOLE_IS_IN_ENV 130 #define CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE 131 132 /* As stated above, the following choices are optional. */ 133 #define CONFIG_SYS_LONGHELP 134 #define CONFIG_AUTO_COMPLETE 135 #define CONFIG_CMDLINE_EDITING 136 #define CONFIG_VERSION_VARIABLE 137 138 /* We set the max number of command args high to avoid HUSH bugs. */ 139 #define CONFIG_SYS_MAXARGS 64 140 141 /* Console I/O Buffer Size */ 142 #define CONFIG_SYS_CBSIZE 512 143 /* Print Buffer Size */ 144 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE +\ 145 sizeof(CONFIG_SYS_PROMPT) + 16) 146 /* Boot Argument Buffer Size */ 147 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE 148 149 /* 150 * Our platforms make use of SPL to initalize the hardware (primarily 151 * memory) enough for full U-Boot to be loaded. We also support Falcon 152 * Mode so that the Linux kernel can be booted directly from SPL 153 * instead, if desired. We make use of the general SPL framework found 154 * under common/spl/. Given our generally common memory map, we set a 155 * number of related defaults and sizes here. 156 */ 157 #define CONFIG_SPL_FRAMEWORK 158 /* 159 * Place the image at the start of the ROM defined image space. 160 * We limit our size to the ROM-defined downloaded image area, and use the 161 * rest of the space for stack. We load U-Boot itself into memory at 162 * 0x80800000 for legacy reasons (to not conflict with older SPLs). We 163 * have our BSS be placed 1MiB after this, to allow for the default 164 * Linux kernel address of 0x80008000 to work, in the Falcon Mode case. 165 * We have the SPL malloc pool at the end of the BSS area. 166 * 167 * ---------------------------------------------------------------------------- 168 */ 169 #undef CONFIG_SYS_TEXT_BASE 170 #define CONFIG_SYS_TEXT_BASE 0x80800000 171 #define CONFIG_SPL_BSS_START_ADDR 0x80A00000 172 #define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */ 173 #define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SPL_BSS_START_ADDR + \ 174 CONFIG_SPL_BSS_MAX_SIZE) 175 #define CONFIG_SYS_SPL_MALLOC_SIZE CONFIG_SYS_MALLOC_LEN 176 177 /* General parts of the framework, required. */ 178 #define CONFIG_SPL_I2C_SUPPORT 179 #define CONFIG_SPL_LIBCOMMON_SUPPORT 180 #define CONFIG_SPL_LIBGENERIC_SUPPORT 181 #define CONFIG_SPL_SERIAL_SUPPORT 182 #define CONFIG_SPL_BOARD_INIT 183 #define CONFIG_SPL_YMODEM_SUPPORT 184 #define CONFIG_SPL_LDSCRIPT "$(CPUDIR)/am33xx/u-boot-spl.lds" 185 186 #endif /* ! __BUR_AM335X_COMMON_H__ */ 187