4 * common parts used by B&R AM335x based boards
6 * Copyright (C) 2013 Hannes Petermaier <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 /* ------------------------------------------------------------------------- */
17 #define CONFIG_OMAP_COMMON
18 #define CONFIG_BOARD_LATE_INIT
19 #define CONFIG_SYS_CACHELINE_SIZE 64
20 #define CONFIG_MAX_RAM_BANK_SIZE (1024 << 20) /* 1GB */
22 /* Timer information */
23 #define CONFIG_SYS_PTV 2 /* Divisor: 2^(PTV+1) => 8 */
24 #define CONFIG_SYS_TIMERBASE 0x48040000 /* Use Timer2 */
26 #define CONFIG_SPL_POWER_SUPPORT
27 #define CONFIG_POWER_TPS65217
29 #define CONFIG_SYS_NO_FLASH /* have no NOR-flash */
31 #include <asm/arch/omap.h>
33 /* NS16550 Configuration */
34 #define CONFIG_SYS_NS16550
35 #define CONFIG_SYS_NS16550_SERIAL
36 #define CONFIG_SYS_NS16550_REG_SIZE (-4)
37 #define CONFIG_SYS_NS16550_CLK 48000000
38 #define CONFIG_SYS_NS16550_COM1 0x44e09000 /* UART0 */
39 #define CONFIG_BAUDRATE 115200
42 #define CONFIG_CMD_NET /* 'bootp' and 'tftp' */
43 #define CONFIG_CMD_DHCP
44 #define CONFIG_BOOTP_DNS /* Configurable parts of CMD_DHCP */
45 #define CONFIG_BOOTP_SEND_HOSTNAME
46 #define CONFIG_BOOTP_GATEWAY
47 #define CONFIG_BOOTP_SUBNETMASK
48 #define CONFIG_NET_RETRY_COUNT 4
49 #define CONFIG_CMD_PING
50 #define CONFIG_DRIVER_TI_CPSW /* Driver for IP block */
51 #define CONFIG_MII /* Required in net/eth.c */
52 #define CONFIG_SPL_ETH_SUPPORT
54 #define CONFIG_PHY_ADDR 1
55 #define CONFIG_PHY_NATSEMI
56 #define CONFIG_SPL_NET_SUPPORT
57 #define CONFIG_SPL_ENV_SUPPORT /* used for a fetching MAC-Address */
58 #define CONFIG_SPL_NET_VCI_STRING "AM335x U-Boot SPL"
61 * SPL related defines. The Public RAM memory map the ROM defines the
62 * area between 0x402F0400 and 0x4030B800 as a download area and
63 * 0x4030B800 to 0x4030CE00 as a public stack area. The ROM also
64 * supports X-MODEM loading via UART, and we leverage this and then use
65 * Y-MODEM to load u-boot.img, when booted over UART.
67 #define CONFIG_SPL_TEXT_BASE 0x402F0400
68 #define CONFIG_SPL_MAX_SIZE (0x4030B800 - CONFIG_SPL_TEXT_BASE)
71 * Since SPL did pll and ddr initialization for us,
72 * we don't need to do it twice.
74 #if !defined(CONFIG_SPL_BUILD) && !defined(CONFIG_NOR_BOOT)
75 #define CONFIG_SKIP_LOWLEVEL_INIT
76 #endif /* !CONFIG_SPL_BUILD, ... */
78 * Our DDR memory always starts at 0x80000000 and U-Boot shall have
79 * relocated itself to higher in memory by the time this value is used.
81 #define CONFIG_SYS_LOAD_ADDR 0x80000000
83 * ----------------------------------------------------------------------------
84 * DDR information. We say (for simplicity) that we have 1 bank,
85 * always, even when we have more. We always start at 0x80000000,
86 * and we place the initial stack pointer in our SRAM.
88 #define CONFIG_NR_DRAM_BANKS 1
89 #define CONFIG_SYS_SDRAM_BASE 0x80000000
90 #define CONFIG_SYS_INIT_SP_ADDR (NON_SECURE_SRAM_END - \
91 GENERATED_GBL_DATA_SIZE)
94 #define CONFIG_SYS_I2C
95 #define CONFIG_SYS_OMAP24_I2C_SPEED 100000
96 #define CONFIG_SYS_OMAP24_I2C_SLAVE 1
97 #define CONFIG_SYS_I2C_OMAP24XX
100 #define CONFIG_OMAP_GPIO
101 #define CONFIG_CMD_GPIO
103 * ----------------------------------------------------------------------------
104 * The following are general good-enough settings for U-Boot. We set a
105 * large malloc pool as we generally have a lot of DDR, and we opt for
106 * function over binary size in the main portion of U-Boot as this is
107 * generally easily constrained later if needed. We enable the config
108 * options that give us information in the environment about what board
109 * we are on so we do not need to rely on the command prompt. We set a
110 * console baudrate of 115200 and use the default baud rate table.
112 #define CONFIG_SYS_MALLOC_LEN (1024 << 10)
113 #define CONFIG_SYS_HUSH_PARSER
114 #define CONFIG_SYS_PROMPT "U-Boot (BuR V2.0)# "
115 #define CONFIG_SYS_CONSOLE_INFO_QUIET
116 #define CONFIG_ENV_OVERWRITE /* Overwrite ethaddr / serial# */
118 /* As stated above, the following choices are optional. */
119 #define CONFIG_SYS_LONGHELP
120 #define CONFIG_AUTO_COMPLETE
121 #define CONFIG_CMDLINE_EDITING
122 #define CONFIG_VERSION_VARIABLE
124 /* We set the max number of command args high to avoid HUSH bugs. */
125 #define CONFIG_SYS_MAXARGS 64
127 /* Console I/O Buffer Size */
128 #define CONFIG_SYS_CBSIZE 512
129 /* Print Buffer Size */
130 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE +\
131 sizeof(CONFIG_SYS_PROMPT) + 16)
132 /* Boot Argument Buffer Size */
133 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE
135 * For commands to use, we take the default list and add a few other
136 * useful commands. Note that we must have set CONFIG_SYS_NO_FLASH
137 * prior to this include, in order to skip a few commands. When we do
138 * have flash, if we expect these commands they must be enabled in that
139 * config. If desired, a specific list of desired commands can be used
142 #include <config_cmd_default.h>
143 /* undefine commands, which we do not need */
144 #undef CONFIG_CMD_EDITENV
145 #undef CONFIG_CMD_FPGA
146 #undef CONFIG_CMD_IMI
147 #undef CONFIG_CMD_ITEST
148 #undef CONFIG_CMD_LOADS
149 #undef CONFIG_CMD_LOADB
150 #undef CONFIG_CMD_NFS
151 #undef CONFIG_CMD_SETGETDCR
152 #undef CONFIG_CMD_XIMG
153 #undef CONFIG_CMD_CRC32
154 /* define command we need always */
155 #define CONFIG_CMD_ECHO
156 #define CONFIG_CMD_SOURCE
159 * Our platforms make use of SPL to initalize the hardware (primarily
160 * memory) enough for full U-Boot to be loaded. We also support Falcon
161 * Mode so that the Linux kernel can be booted directly from SPL
162 * instead, if desired. We make use of the general SPL framework found
163 * under common/spl/. Given our generally common memory map, we set a
164 * number of related defaults and sizes here.
167 #define CONFIG_SPL_FRAMEWORK
169 * Place the image at the start of the ROM defined image space.
170 * We limit our size to the ROM-defined downloaded image area, and use the
171 * rest of the space for stack. We load U-Boot itself into memory at
172 * 0x80800000 for legacy reasons (to not conflict with older SPLs). We
173 * have our BSS be placed 1MiB after this, to allow for the default
174 * Linux kernel address of 0x80008000 to work, in the Falcon Mode case.
175 * We have the SPL malloc pool at the end of the BSS area.
177 * ----------------------------------------------------------------------------
179 #define CONFIG_SPL_STACK CONFIG_SYS_INIT_SP_ADDR
180 #undef CONFIG_SYS_TEXT_BASE
181 #define CONFIG_SYS_TEXT_BASE 0x80800000
182 #define CONFIG_SPL_BSS_START_ADDR 0x80A00000
183 #define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */
184 #define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SPL_BSS_START_ADDR + \
185 CONFIG_SPL_BSS_MAX_SIZE)
186 #define CONFIG_SYS_SPL_MALLOC_SIZE CONFIG_SYS_MALLOC_LEN
188 /* General parts of the framework, required. */
189 #define CONFIG_SPL_I2C_SUPPORT
190 #define CONFIG_SPL_LIBCOMMON_SUPPORT
191 #define CONFIG_SPL_LIBGENERIC_SUPPORT
192 #define CONFIG_SPL_SERIAL_SUPPORT
193 #define CONFIG_SPL_BOARD_INIT
194 #define CONFIG_SPL_YMODEM_SUPPORT
195 #define CONFIG_SPL_LDSCRIPT "$(CPUDIR)/am33xx/u-boot-spl.lds"
197 #endif /* ! __BUR_AM335X_COMMON_H__ */