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 "defaultip=192.168.60.253\0" \ 18 "defaultsip=192.168.60.254\0" \ 19 "netconsole=echo switching to network console ...; " \ 20 "if dhcp; then setenv ncip ${serverip}; " \ 21 "else " \ 22 "setenv ncip 192.168.60.254; setenv serverip 192.168.60.254; " \ 23 "setenv gatewayip 192.168.60.254; setenv ipaddr 192.168.60.1; " \ 24 "fi; " \ 25 "setcurs 1 9; lcdputs myip; setcurs 10 9; lcdputs ${ipaddr};" \ 26 "setcurs 1 10;lcdputs serverip; setcurs 10 10; lcdputs ${serverip};" \ 27 "setenv stdout nc;setenv stdin nc;setenv stderr nc\0" 28 29 #define CONFIG_CMD_TIME 30 31 #define CONFIG_SYS_GENERIC_BOARD 32 33 #define CONFIG_AM33XX 34 #define CONFIG_OMAP 35 #define CONFIG_OMAP_COMMON 36 #define CONFIG_BOARD_LATE_INIT 37 #define CONFIG_SYS_CACHELINE_SIZE 64 38 #define CONFIG_MAX_RAM_BANK_SIZE (1024 << 20) /* 1GB */ 39 40 /* Timer information */ 41 #define CONFIG_SYS_PTV 2 /* Divisor: 2^(PTV+1) => 8 */ 42 #define CONFIG_SYS_TIMERBASE 0x48040000 /* Use Timer2 */ 43 #define CONFIG_SPL_AM33XX_ENABLE_RTC32K_OSC /* enable 32kHz OSC at bootime */ 44 #define CONFIG_SPL_POWER_SUPPORT 45 #define CONFIG_POWER_TPS65217 46 47 #define CONFIG_SYS_NO_FLASH /* have no NOR-flash */ 48 49 #include <asm/arch/omap.h> 50 51 /* NS16550 Configuration */ 52 #define CONFIG_SYS_NS16550 53 #define CONFIG_SYS_NS16550_SERIAL 54 #define CONFIG_SYS_NS16550_REG_SIZE (-4) 55 #define CONFIG_SYS_NS16550_CLK 48000000 56 #define CONFIG_SYS_NS16550_COM1 0x44e09000 /* UART0 */ 57 #define CONFIG_BAUDRATE 115200 58 59 /* Network defines */ 60 #define CONFIG_CMD_DHCP 61 #define CONFIG_BOOTP_DNS /* Configurable parts of CMD_DHCP */ 62 #define CONFIG_BOOTP_SEND_HOSTNAME 63 #define CONFIG_BOOTP_GATEWAY 64 #define CONFIG_BOOTP_SUBNETMASK 65 #define CONFIG_NET_RETRY_COUNT 2 66 #define CONFIG_CMD_PING 67 #define CONFIG_DRIVER_TI_CPSW /* Driver for IP block */ 68 #define CONFIG_MII /* Required in net/eth.c */ 69 #define CONFIG_SPL_ETH_SUPPORT 70 #define CONFIG_PHYLIB 71 #define CONFIG_PHY_NATSEMI 72 #define CONFIG_SPL_NET_SUPPORT 73 #define CONFIG_SPL_ENV_SUPPORT /* used for a fetching MAC-Address */ 74 #define CONFIG_SPL_NET_VCI_STRING "AM335x U-Boot SPL" 75 /* Network console */ 76 #define CONFIG_NETCONSOLE 1 77 #define CONFIG_BOOTP_MAY_FAIL /* if we don't have DHCP environment */ 78 /* 79 * SPL related defines. The Public RAM memory map the ROM defines the 80 * area between 0x402F0400 and 0x4030B800 as a download area and 81 * 0x4030B800 to 0x4030CE00 as a public stack area. The ROM also 82 * supports X-MODEM loading via UART, and we leverage this and then use 83 * Y-MODEM to load u-boot.img, when booted over UART. 84 */ 85 #define CONFIG_SPL_TEXT_BASE 0x402F0400 86 #define CONFIG_SPL_MAX_SIZE (0x4030B800 - CONFIG_SPL_TEXT_BASE) 87 88 /* 89 * Since SPL did pll and ddr initialization for us, 90 * we don't need to do it twice. 91 */ 92 #if !defined(CONFIG_SPL_BUILD) && !defined(CONFIG_NOR_BOOT) 93 #define CONFIG_SKIP_LOWLEVEL_INIT 94 #endif /* !CONFIG_SPL_BUILD, ... */ 95 /* 96 * Our DDR memory always starts at 0x80000000 and U-Boot shall have 97 * relocated itself to higher in memory by the time this value is used. 98 */ 99 #define CONFIG_SYS_LOAD_ADDR 0x80000000 100 /* 101 * ---------------------------------------------------------------------------- 102 * DDR information. We say (for simplicity) that we have 1 bank, 103 * always, even when we have more. We always start at 0x80000000, 104 * and we place the initial stack pointer in our SRAM. 105 */ 106 #define CONFIG_NR_DRAM_BANKS 1 107 #define CONFIG_SYS_SDRAM_BASE 0x80000000 108 #define CONFIG_SYS_INIT_SP_ADDR (NON_SECURE_SRAM_END - \ 109 GENERATED_GBL_DATA_SIZE) 110 111 /* I2C */ 112 #define CONFIG_SYS_I2C 113 #define CONFIG_SYS_OMAP24_I2C_SPEED 100000 114 #define CONFIG_SYS_OMAP24_I2C_SLAVE 1 115 #define CONFIG_SYS_I2C_OMAP24XX 116 #define CONFIG_CMD_I2C 117 /* GPIO */ 118 #define CONFIG_OMAP_GPIO 119 #define CONFIG_CMD_GPIO 120 /* 121 * ---------------------------------------------------------------------------- 122 * The following are general good-enough settings for U-Boot. We set a 123 * large malloc pool as we generally have a lot of DDR, and we opt for 124 * function over binary size in the main portion of U-Boot as this is 125 * generally easily constrained later if needed. We enable the config 126 * options that give us information in the environment about what board 127 * we are on so we do not need to rely on the command prompt. We set a 128 * console baudrate of 115200 and use the default baud rate table. 129 */ 130 #define CONFIG_SYS_MALLOC_LEN (5120 << 10) 131 #define CONFIG_SYS_HUSH_PARSER 132 #define CONFIG_SYS_CONSOLE_INFO_QUIET 133 #define CONFIG_ENV_OVERWRITE /* Overwrite ethaddr / serial# */ 134 #define CONFIG_SYS_CONSOLE_IS_IN_ENV 135 #define CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE 136 137 /* As stated above, the following choices are optional. */ 138 #define CONFIG_SYS_LONGHELP 139 #define CONFIG_AUTO_COMPLETE 140 #define CONFIG_CMDLINE_EDITING 141 #define CONFIG_VERSION_VARIABLE 142 143 /* We set the max number of command args high to avoid HUSH bugs. */ 144 #define CONFIG_SYS_MAXARGS 64 145 146 /* Console I/O Buffer Size */ 147 #define CONFIG_SYS_CBSIZE 512 148 /* Print Buffer Size */ 149 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE +\ 150 sizeof(CONFIG_SYS_PROMPT) + 16) 151 /* Boot Argument Buffer Size */ 152 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE 153 154 /* 155 * Our platforms make use of SPL to initalize the hardware (primarily 156 * memory) enough for full U-Boot to be loaded. We also support Falcon 157 * Mode so that the Linux kernel can be booted directly from SPL 158 * instead, if desired. We make use of the general SPL framework found 159 * under common/spl/. Given our generally common memory map, we set a 160 * number of related defaults and sizes here. 161 */ 162 #define CONFIG_SPL_FRAMEWORK 163 /* 164 * Place the image at the start of the ROM defined image space. 165 * We limit our size to the ROM-defined downloaded image area, and use the 166 * rest of the space for stack. We load U-Boot itself into memory at 167 * 0x80800000 for legacy reasons (to not conflict with older SPLs). We 168 * have our BSS be placed 1MiB after this, to allow for the default 169 * Linux kernel address of 0x80008000 to work, in the Falcon Mode case. 170 * We have the SPL malloc pool at the end of the BSS area. 171 * 172 * ---------------------------------------------------------------------------- 173 */ 174 #undef CONFIG_SYS_TEXT_BASE 175 #define CONFIG_SYS_TEXT_BASE 0x80800000 176 #define CONFIG_SPL_BSS_START_ADDR 0x80A00000 177 #define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */ 178 #define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SPL_BSS_START_ADDR + \ 179 CONFIG_SPL_BSS_MAX_SIZE) 180 #define CONFIG_SYS_SPL_MALLOC_SIZE CONFIG_SYS_MALLOC_LEN 181 182 /* General parts of the framework, required. */ 183 #define CONFIG_SPL_I2C_SUPPORT 184 #define CONFIG_SPL_LIBCOMMON_SUPPORT 185 #define CONFIG_SPL_LIBGENERIC_SUPPORT 186 #define CONFIG_SPL_SERIAL_SUPPORT 187 #define CONFIG_SPL_BOARD_INIT 188 #define CONFIG_SPL_YMODEM_SUPPORT 189 #define CONFIG_SPL_LDSCRIPT "$(CPUDIR)/am33xx/u-boot-spl.lds" 190 191 #endif /* ! __BUR_AM335X_COMMON_H__ */ 192