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Hannes Petermaier893c04e2014-02-07 08:07:36 +01001/*
2 * bur_am335x_common.h
3 *
4 * common parts used by B&R AM335x based boards
5 *
6 * Copyright (C) 2013 Hannes Petermaier <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/* ------------------------------------------------------------------------- */
Hannes Petermaier29a0d9c2014-06-04 10:22:07 +020015#define CONFIG_SYS_GENERIC_BOARD
16
Hannes Petermaier893c04e2014-02-07 08:07:36 +010017#define CONFIG_AM33XX
18#define CONFIG_OMAP
19#define CONFIG_OMAP_COMMON
20#define CONFIG_BOARD_LATE_INIT
21#define CONFIG_SYS_CACHELINE_SIZE 64
22#define CONFIG_MAX_RAM_BANK_SIZE (1024 << 20) /* 1GB */
23
24/* Timer information */
25#define CONFIG_SYS_PTV 2 /* Divisor: 2^(PTV+1) => 8 */
26#define CONFIG_SYS_TIMERBASE 0x48040000 /* Use Timer2 */
Hannes Petermaier96de0412014-03-27 10:37:36 +010027#define CONFIG_SPL_AM33XX_ENABLE_RTC32K_OSC /* enable 32kHz OSC at bootime */
Hannes Petermaier893c04e2014-02-07 08:07:36 +010028#define CONFIG_SPL_POWER_SUPPORT
29#define CONFIG_POWER_TPS65217
30
31#define CONFIG_SYS_NO_FLASH /* have no NOR-flash */
32
33#include <asm/arch/omap.h>
34
35/* NS16550 Configuration */
36#define CONFIG_SYS_NS16550
37#define CONFIG_SYS_NS16550_SERIAL
38#define CONFIG_SYS_NS16550_REG_SIZE (-4)
39#define CONFIG_SYS_NS16550_CLK 48000000
40#define CONFIG_SYS_NS16550_COM1 0x44e09000 /* UART0 */
41#define CONFIG_BAUDRATE 115200
42
43/* Network defines */
44#define CONFIG_CMD_NET /* 'bootp' and 'tftp' */
45#define CONFIG_CMD_DHCP
46#define CONFIG_BOOTP_DNS /* Configurable parts of CMD_DHCP */
47#define CONFIG_BOOTP_SEND_HOSTNAME
48#define CONFIG_BOOTP_GATEWAY
49#define CONFIG_BOOTP_SUBNETMASK
50#define CONFIG_NET_RETRY_COUNT 4
51#define CONFIG_CMD_PING
52#define CONFIG_DRIVER_TI_CPSW /* Driver for IP block */
53#define CONFIG_MII /* Required in net/eth.c */
54#define CONFIG_SPL_ETH_SUPPORT
55#define CONFIG_PHYLIB
Hannes Petermaier893c04e2014-02-07 08:07:36 +010056#define CONFIG_PHY_NATSEMI
57#define CONFIG_SPL_NET_SUPPORT
58#define CONFIG_SPL_ENV_SUPPORT /* used for a fetching MAC-Address */
59#define CONFIG_SPL_NET_VCI_STRING "AM335x U-Boot SPL"
60
61/*
62 * SPL related defines. The Public RAM memory map the ROM defines the
63 * area between 0x402F0400 and 0x4030B800 as a download area and
64 * 0x4030B800 to 0x4030CE00 as a public stack area. The ROM also
65 * supports X-MODEM loading via UART, and we leverage this and then use
66 * Y-MODEM to load u-boot.img, when booted over UART.
67 */
68#define CONFIG_SPL_TEXT_BASE 0x402F0400
69#define CONFIG_SPL_MAX_SIZE (0x4030B800 - CONFIG_SPL_TEXT_BASE)
70
71/*
72 * Since SPL did pll and ddr initialization for us,
73 * we don't need to do it twice.
74 */
75#if !defined(CONFIG_SPL_BUILD) && !defined(CONFIG_NOR_BOOT)
76#define CONFIG_SKIP_LOWLEVEL_INIT
77#endif /* !CONFIG_SPL_BUILD, ... */
78/*
79 * Our DDR memory always starts at 0x80000000 and U-Boot shall have
80 * relocated itself to higher in memory by the time this value is used.
81 */
82#define CONFIG_SYS_LOAD_ADDR 0x80000000
83/*
84 * ----------------------------------------------------------------------------
85 * DDR information. We say (for simplicity) that we have 1 bank,
86 * always, even when we have more. We always start at 0x80000000,
87 * and we place the initial stack pointer in our SRAM.
88 */
89#define CONFIG_NR_DRAM_BANKS 1
90#define CONFIG_SYS_SDRAM_BASE 0x80000000
91#define CONFIG_SYS_INIT_SP_ADDR (NON_SECURE_SRAM_END - \
92 GENERATED_GBL_DATA_SIZE)
93
94/* I2C */
95#define CONFIG_SYS_I2C
96#define CONFIG_SYS_OMAP24_I2C_SPEED 100000
97#define CONFIG_SYS_OMAP24_I2C_SLAVE 1
98#define CONFIG_SYS_I2C_OMAP24XX
Hannes Petermaier3e6a52c2014-06-04 10:28:39 +020099#define CONFIG_CMD_I2C
Hannes Petermaier893c04e2014-02-07 08:07:36 +0100100/* GPIO */
101#define CONFIG_OMAP_GPIO
102#define CONFIG_CMD_GPIO
103/*
104 * ----------------------------------------------------------------------------
105 * The following are general good-enough settings for U-Boot. We set a
106 * large malloc pool as we generally have a lot of DDR, and we opt for
107 * function over binary size in the main portion of U-Boot as this is
108 * generally easily constrained later if needed. We enable the config
109 * options that give us information in the environment about what board
110 * we are on so we do not need to rely on the command prompt. We set a
111 * console baudrate of 115200 and use the default baud rate table.
112 */
113#define CONFIG_SYS_MALLOC_LEN (1024 << 10)
114#define CONFIG_SYS_HUSH_PARSER
115#define CONFIG_SYS_PROMPT "U-Boot (BuR V2.0)# "
116#define CONFIG_SYS_CONSOLE_INFO_QUIET
117#define CONFIG_ENV_OVERWRITE /* Overwrite ethaddr / serial# */
118
119/* As stated above, the following choices are optional. */
120#define CONFIG_SYS_LONGHELP
121#define CONFIG_AUTO_COMPLETE
122#define CONFIG_CMDLINE_EDITING
123#define CONFIG_VERSION_VARIABLE
124
125/* We set the max number of command args high to avoid HUSH bugs. */
126#define CONFIG_SYS_MAXARGS 64
127
128/* Console I/O Buffer Size */
129#define CONFIG_SYS_CBSIZE 512
130/* Print Buffer Size */
131#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE +\
132 sizeof(CONFIG_SYS_PROMPT) + 16)
133/* Boot Argument Buffer Size */
134#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE
135/*
136 * For commands to use, we take the default list and add a few other
137 * useful commands. Note that we must have set CONFIG_SYS_NO_FLASH
138 * prior to this include, in order to skip a few commands. When we do
139 * have flash, if we expect these commands they must be enabled in that
140 * config. If desired, a specific list of desired commands can be used
141 * instead.
142 */
143#include <config_cmd_default.h>
144/* undefine commands, which we do not need */
145#undef CONFIG_CMD_EDITENV
146#undef CONFIG_CMD_FPGA
147#undef CONFIG_CMD_IMI
148#undef CONFIG_CMD_ITEST
149#undef CONFIG_CMD_LOADS
150#undef CONFIG_CMD_LOADB
151#undef CONFIG_CMD_NFS
152#undef CONFIG_CMD_SETGETDCR
153#undef CONFIG_CMD_XIMG
Hannes Petermaier893c04e2014-02-07 08:07:36 +0100154/* define command we need always */
155#define CONFIG_CMD_ECHO
156#define CONFIG_CMD_SOURCE
157
158/*
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.
165 */
Hannes Petermaier893c04e2014-02-07 08:07:36 +0100166#define CONFIG_SPL_FRAMEWORK
167/*
168 * Place the image at the start of the ROM defined image space.
169 * We limit our size to the ROM-defined downloaded image area, and use the
170 * rest of the space for stack. We load U-Boot itself into memory at
171 * 0x80800000 for legacy reasons (to not conflict with older SPLs). We
172 * have our BSS be placed 1MiB after this, to allow for the default
173 * Linux kernel address of 0x80008000 to work, in the Falcon Mode case.
174 * We have the SPL malloc pool at the end of the BSS area.
175 *
176 * ----------------------------------------------------------------------------
177 */
178#define CONFIG_SPL_STACK CONFIG_SYS_INIT_SP_ADDR
179#undef CONFIG_SYS_TEXT_BASE
180#define CONFIG_SYS_TEXT_BASE 0x80800000
181#define CONFIG_SPL_BSS_START_ADDR 0x80A00000
182#define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */
183#define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SPL_BSS_START_ADDR + \
184 CONFIG_SPL_BSS_MAX_SIZE)
185#define CONFIG_SYS_SPL_MALLOC_SIZE CONFIG_SYS_MALLOC_LEN
186
187/* General parts of the framework, required. */
188#define CONFIG_SPL_I2C_SUPPORT
189#define CONFIG_SPL_LIBCOMMON_SUPPORT
190#define CONFIG_SPL_LIBGENERIC_SUPPORT
191#define CONFIG_SPL_SERIAL_SUPPORT
192#define CONFIG_SPL_BOARD_INIT
193#define CONFIG_SPL_YMODEM_SUPPORT
194#define CONFIG_SPL_LDSCRIPT "$(CPUDIR)/am33xx/u-boot-spl.lds"
195
196#endif /* ! __BUR_AM335X_COMMON_H__ */