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 #define CONFIG_SYS_GENERIC_BOARD 30 31 #define CONFIG_AM33XX 32 #define CONFIG_OMAP 33 #define CONFIG_OMAP_COMMON 34 #define CONFIG_BOARD_LATE_INIT 35 #define CONFIG_SYS_CACHELINE_SIZE 64 36 #define CONFIG_MAX_RAM_BANK_SIZE (1024 << 20) /* 1GB */ 37 38 /* Timer information */ 39 #define CONFIG_SYS_PTV 2 /* Divisor: 2^(PTV+1) => 8 */ 40 #define CONFIG_SYS_TIMERBASE 0x48040000 /* Use Timer2 */ 41 #define CONFIG_SPL_AM33XX_ENABLE_RTC32K_OSC /* enable 32kHz OSC at bootime */ 42 #define CONFIG_SPL_POWER_SUPPORT 43 #define CONFIG_POWER_TPS65217 44 45 #define CONFIG_SYS_NO_FLASH /* have no NOR-flash */ 46 47 #include <asm/arch/omap.h> 48 49 /* NS16550 Configuration */ 50 #define CONFIG_SYS_NS16550 51 #define CONFIG_SYS_NS16550_SERIAL 52 #define CONFIG_SYS_NS16550_REG_SIZE (-4) 53 #define CONFIG_SYS_NS16550_CLK 48000000 54 #define CONFIG_SYS_NS16550_COM1 0x44e09000 /* UART0 */ 55 #define CONFIG_BAUDRATE 115200 56 57 /* Network defines */ 58 #define CONFIG_CMD_DHCP 59 #define CONFIG_BOOTP_DNS /* Configurable parts of CMD_DHCP */ 60 #define CONFIG_BOOTP_SEND_HOSTNAME 61 #define CONFIG_BOOTP_GATEWAY 62 #define CONFIG_BOOTP_SUBNETMASK 63 #define CONFIG_NET_RETRY_COUNT 2 64 #define CONFIG_CMD_PING 65 #define CONFIG_DRIVER_TI_CPSW /* Driver for IP block */ 66 #define CONFIG_MII /* Required in net/eth.c */ 67 #define CONFIG_SPL_ETH_SUPPORT 68 #define CONFIG_PHYLIB 69 #define CONFIG_PHY_NATSEMI 70 #define CONFIG_SPL_NET_SUPPORT 71 #define CONFIG_SPL_ENV_SUPPORT /* used for a fetching MAC-Address */ 72 #define CONFIG_SPL_NET_VCI_STRING "AM335x U-Boot SPL" 73 /* Network console */ 74 #define CONFIG_NETCONSOLE 1 75 #define CONFIG_BOOTP_MAY_FAIL /* if we don't have DHCP environment */ 76 /* 77 * SPL related defines. The Public RAM memory map the ROM defines the 78 * area between 0x402F0400 and 0x4030B800 as a download area and 79 * 0x4030B800 to 0x4030CE00 as a public stack area. The ROM also 80 * supports X-MODEM loading via UART, and we leverage this and then use 81 * Y-MODEM to load u-boot.img, when booted over UART. 82 */ 83 #define CONFIG_SPL_TEXT_BASE 0x402F0400 84 #define CONFIG_SPL_MAX_SIZE (0x4030B800 - CONFIG_SPL_TEXT_BASE) 85 86 /* 87 * Since SPL did pll and ddr initialization for us, 88 * we don't need to do it twice. 89 */ 90 #if !defined(CONFIG_SPL_BUILD) && !defined(CONFIG_NOR_BOOT) 91 #define CONFIG_SKIP_LOWLEVEL_INIT 92 #endif /* !CONFIG_SPL_BUILD, ... */ 93 /* 94 * Our DDR memory always starts at 0x80000000 and U-Boot shall have 95 * relocated itself to higher in memory by the time this value is used. 96 */ 97 #define CONFIG_SYS_LOAD_ADDR 0x80000000 98 /* 99 * ---------------------------------------------------------------------------- 100 * DDR information. We say (for simplicity) that we have 1 bank, 101 * always, even when we have more. We always start at 0x80000000, 102 * and we place the initial stack pointer in our SRAM. 103 */ 104 #define CONFIG_NR_DRAM_BANKS 1 105 #define CONFIG_SYS_SDRAM_BASE 0x80000000 106 #define CONFIG_SYS_INIT_SP_ADDR (NON_SECURE_SRAM_END - \ 107 GENERATED_GBL_DATA_SIZE) 108 109 /* I2C */ 110 #define CONFIG_SYS_I2C 111 #define CONFIG_SYS_OMAP24_I2C_SPEED 100000 112 #define CONFIG_SYS_OMAP24_I2C_SLAVE 1 113 #define CONFIG_SYS_I2C_OMAP24XX 114 #define CONFIG_CMD_I2C 115 /* GPIO */ 116 #define CONFIG_OMAP_GPIO 117 #define CONFIG_CMD_GPIO 118 /* 119 * ---------------------------------------------------------------------------- 120 * The following are general good-enough settings for U-Boot. We set a 121 * large malloc pool as we generally have a lot of DDR, and we opt for 122 * function over binary size in the main portion of U-Boot as this is 123 * generally easily constrained later if needed. We enable the config 124 * options that give us information in the environment about what board 125 * we are on so we do not need to rely on the command prompt. We set a 126 * console baudrate of 115200 and use the default baud rate table. 127 */ 128 #define CONFIG_SYS_MALLOC_LEN (5120 << 10) 129 #define CONFIG_SYS_HUSH_PARSER 130 #define CONFIG_SYS_CONSOLE_INFO_QUIET 131 #define CONFIG_ENV_OVERWRITE /* Overwrite ethaddr / serial# */ 132 #define CONFIG_SYS_CONSOLE_IS_IN_ENV 133 #define CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE 134 135 /* As stated above, the following choices are optional. */ 136 #define CONFIG_SYS_LONGHELP 137 #define CONFIG_AUTO_COMPLETE 138 #define CONFIG_CMDLINE_EDITING 139 #define CONFIG_VERSION_VARIABLE 140 141 /* We set the max number of command args high to avoid HUSH bugs. */ 142 #define CONFIG_SYS_MAXARGS 64 143 144 /* Console I/O Buffer Size */ 145 #define CONFIG_SYS_CBSIZE 512 146 /* Print Buffer Size */ 147 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE +\ 148 sizeof(CONFIG_SYS_PROMPT) + 16) 149 /* Boot Argument Buffer Size */ 150 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE 151 152 /* 153 * Our platforms make use of SPL to initalize the hardware (primarily 154 * memory) enough for full U-Boot to be loaded. We also support Falcon 155 * Mode so that the Linux kernel can be booted directly from SPL 156 * instead, if desired. We make use of the general SPL framework found 157 * under common/spl/. Given our generally common memory map, we set a 158 * number of related defaults and sizes here. 159 */ 160 #define CONFIG_SPL_FRAMEWORK 161 /* 162 * Place the image at the start of the ROM defined image space. 163 * We limit our size to the ROM-defined downloaded image area, and use the 164 * rest of the space for stack. We load U-Boot itself into memory at 165 * 0x80800000 for legacy reasons (to not conflict with older SPLs). We 166 * have our BSS be placed 1MiB after this, to allow for the default 167 * Linux kernel address of 0x80008000 to work, in the Falcon Mode case. 168 * We have the SPL malloc pool at the end of the BSS area. 169 * 170 * ---------------------------------------------------------------------------- 171 */ 172 #undef CONFIG_SYS_TEXT_BASE 173 #define CONFIG_SYS_TEXT_BASE 0x80800000 174 #define CONFIG_SPL_BSS_START_ADDR 0x80A00000 175 #define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */ 176 #define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SPL_BSS_START_ADDR + \ 177 CONFIG_SPL_BSS_MAX_SIZE) 178 #define CONFIG_SYS_SPL_MALLOC_SIZE CONFIG_SYS_MALLOC_LEN 179 180 /* General parts of the framework, required. */ 181 #define CONFIG_SPL_I2C_SUPPORT 182 #define CONFIG_SPL_LIBCOMMON_SUPPORT 183 #define CONFIG_SPL_LIBGENERIC_SUPPORT 184 #define CONFIG_SPL_SERIAL_SUPPORT 185 #define CONFIG_SPL_BOARD_INIT 186 #define CONFIG_SPL_YMODEM_SUPPORT 187 #define CONFIG_SPL_LDSCRIPT "$(CPUDIR)/am33xx/u-boot-spl.lds" 188 189 #endif /* ! __BUR_AM335X_COMMON_H__ */ 190