4 * common parts used by B&R AM335x based boards
6 * Copyright (C) 2013 Hannes Schmelzer <oe5hpm@oevsv.at> -
7 * Bernecker & Rainer Industrieelektronik GmbH - http://www.br-automation.com
9 * SPDX-License-Identifier: GPL-2.0+
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}; " \
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; " \
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"
29 #define CONFIG_CMD_TIME
31 #define CONFIG_SYS_GENERIC_BOARD
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 */
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
47 #define CONFIG_SYS_NO_FLASH /* have no NOR-flash */
49 #include <asm/arch/omap.h>
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
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
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"
76 #define CONFIG_NETCONSOLE 1
77 #define CONFIG_BOOTP_MAY_FAIL /* if we don't have DHCP environment */
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.
85 #define CONFIG_SPL_TEXT_BASE 0x402F0400
86 #define CONFIG_SPL_MAX_SIZE (0x4030B800 - CONFIG_SPL_TEXT_BASE)
89 * Since SPL did pll and ddr initialization for us,
90 * we don't need to do it twice.
92 #if !defined(CONFIG_SPL_BUILD) && !defined(CONFIG_NOR_BOOT)
93 #define CONFIG_SKIP_LOWLEVEL_INIT
94 #endif /* !CONFIG_SPL_BUILD, ... */
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.
99 #define CONFIG_SYS_LOAD_ADDR 0x80000000
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.
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)
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
118 #define CONFIG_OMAP_GPIO
119 #define CONFIG_CMD_GPIO
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.
130 #define CONFIG_SYS_MALLOC_LEN (5120 << 10)
131 #define CONFIG_SYS_HUSH_PARSER
132 #define CONFIG_SYS_PROMPT "U-Boot (BuR V2.0)# "
133 #define CONFIG_SYS_CONSOLE_INFO_QUIET
134 #define CONFIG_ENV_OVERWRITE /* Overwrite ethaddr / serial# */
135 #define CONFIG_SYS_CONSOLE_IS_IN_ENV
136 #define CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
138 /* As stated above, the following choices are optional. */
139 #define CONFIG_SYS_LONGHELP
140 #define CONFIG_AUTO_COMPLETE
141 #define CONFIG_CMDLINE_EDITING
142 #define CONFIG_VERSION_VARIABLE
144 /* We set the max number of command args high to avoid HUSH bugs. */
145 #define CONFIG_SYS_MAXARGS 64
147 /* Console I/O Buffer Size */
148 #define CONFIG_SYS_CBSIZE 512
149 /* Print Buffer Size */
150 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE +\
151 sizeof(CONFIG_SYS_PROMPT) + 16)
152 /* Boot Argument Buffer Size */
153 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE
156 * Our platforms make use of SPL to initalize the hardware (primarily
157 * memory) enough for full U-Boot to be loaded. We also support Falcon
158 * Mode so that the Linux kernel can be booted directly from SPL
159 * instead, if desired. We make use of the general SPL framework found
160 * under common/spl/. Given our generally common memory map, we set a
161 * number of related defaults and sizes here.
163 #define CONFIG_SPL_FRAMEWORK
165 * Place the image at the start of the ROM defined image space.
166 * We limit our size to the ROM-defined downloaded image area, and use the
167 * rest of the space for stack. We load U-Boot itself into memory at
168 * 0x80800000 for legacy reasons (to not conflict with older SPLs). We
169 * have our BSS be placed 1MiB after this, to allow for the default
170 * Linux kernel address of 0x80008000 to work, in the Falcon Mode case.
171 * We have the SPL malloc pool at the end of the BSS area.
173 * ----------------------------------------------------------------------------
175 #undef CONFIG_SYS_TEXT_BASE
176 #define CONFIG_SYS_TEXT_BASE 0x80800000
177 #define CONFIG_SPL_BSS_START_ADDR 0x80A00000
178 #define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */
179 #define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SPL_BSS_START_ADDR + \
180 CONFIG_SPL_BSS_MAX_SIZE)
181 #define CONFIG_SYS_SPL_MALLOC_SIZE CONFIG_SYS_MALLOC_LEN
183 /* General parts of the framework, required. */
184 #define CONFIG_SPL_I2C_SUPPORT
185 #define CONFIG_SPL_LIBCOMMON_SUPPORT
186 #define CONFIG_SPL_LIBGENERIC_SUPPORT
187 #define CONFIG_SPL_SERIAL_SUPPORT
188 #define CONFIG_SPL_BOARD_INIT
189 #define CONFIG_SPL_YMODEM_SUPPORT
190 #define CONFIG_SPL_LDSCRIPT "$(CPUDIR)/am33xx/u-boot-spl.lds"
192 #endif /* ! __BUR_AM335X_COMMON_H__ */