1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
|
/*
* bur_am335x_common.h
*
* common parts used by B&R AM335x based boards
*
* Copyright (C) 2013 Hannes Petermaier <oe5hpm@oevsv.at> -
* Bernecker & Rainer Industrieelektronik GmbH - http://www.br-automation.com
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __BUR_AM335X_COMMON_H__
#define __BUR_AM335X_COMMON_H__
/* ------------------------------------------------------------------------- */
#define CONFIG_SYS_GENERIC_BOARD
#define CONFIG_AM33XX
#define CONFIG_OMAP
#define CONFIG_OMAP_COMMON
#define CONFIG_BOARD_LATE_INIT
#define CONFIG_SYS_CACHELINE_SIZE 64
#define CONFIG_MAX_RAM_BANK_SIZE (1024 << 20) /* 1GB */
/* Timer information */
#define CONFIG_SYS_PTV 2 /* Divisor: 2^(PTV+1) => 8 */
#define CONFIG_SYS_TIMERBASE 0x48040000 /* Use Timer2 */
#define CONFIG_SPL_AM33XX_ENABLE_RTC32K_OSC /* enable 32kHz OSC at bootime */
#define CONFIG_SPL_POWER_SUPPORT
#define CONFIG_POWER_TPS65217
#define CONFIG_SYS_NO_FLASH /* have no NOR-flash */
#include <asm/arch/omap.h>
/* NS16550 Configuration */
#define CONFIG_SYS_NS16550
#define CONFIG_SYS_NS16550_SERIAL
#define CONFIG_SYS_NS16550_REG_SIZE (-4)
#define CONFIG_SYS_NS16550_CLK 48000000
#define CONFIG_SYS_NS16550_COM1 0x44e09000 /* UART0 */
#define CONFIG_BAUDRATE 115200
/* Network defines */
#define CONFIG_CMD_NET /* 'bootp' and 'tftp' */
#define CONFIG_CMD_DHCP
#define CONFIG_BOOTP_DNS /* Configurable parts of CMD_DHCP */
#define CONFIG_BOOTP_SEND_HOSTNAME
#define CONFIG_BOOTP_GATEWAY
#define CONFIG_BOOTP_SUBNETMASK
#define CONFIG_NET_RETRY_COUNT 4
#define CONFIG_CMD_PING
#define CONFIG_DRIVER_TI_CPSW /* Driver for IP block */
#define CONFIG_MII /* Required in net/eth.c */
#define CONFIG_SPL_ETH_SUPPORT
#define CONFIG_PHYLIB
#define CONFIG_PHY_NATSEMI
#define CONFIG_SPL_NET_SUPPORT
#define CONFIG_SPL_ENV_SUPPORT /* used for a fetching MAC-Address */
#define CONFIG_SPL_NET_VCI_STRING "AM335x U-Boot SPL"
/*
* SPL related defines. The Public RAM memory map the ROM defines the
* area between 0x402F0400 and 0x4030B800 as a download area and
* 0x4030B800 to 0x4030CE00 as a public stack area. The ROM also
* supports X-MODEM loading via UART, and we leverage this and then use
* Y-MODEM to load u-boot.img, when booted over UART.
*/
#define CONFIG_SPL_TEXT_BASE 0x402F0400
#define CONFIG_SPL_MAX_SIZE (0x4030B800 - CONFIG_SPL_TEXT_BASE)
/*
* Since SPL did pll and ddr initialization for us,
* we don't need to do it twice.
*/
#if !defined(CONFIG_SPL_BUILD) && !defined(CONFIG_NOR_BOOT)
#define CONFIG_SKIP_LOWLEVEL_INIT
#endif /* !CONFIG_SPL_BUILD, ... */
/*
* Our DDR memory always starts at 0x80000000 and U-Boot shall have
* relocated itself to higher in memory by the time this value is used.
*/
#define CONFIG_SYS_LOAD_ADDR 0x80000000
/*
* ----------------------------------------------------------------------------
* DDR information. We say (for simplicity) that we have 1 bank,
* always, even when we have more. We always start at 0x80000000,
* and we place the initial stack pointer in our SRAM.
*/
#define CONFIG_NR_DRAM_BANKS 1
#define CONFIG_SYS_SDRAM_BASE 0x80000000
#define CONFIG_SYS_INIT_SP_ADDR (NON_SECURE_SRAM_END - \
GENERATED_GBL_DATA_SIZE)
/* I2C */
#define CONFIG_SYS_I2C
#define CONFIG_SYS_OMAP24_I2C_SPEED 100000
#define CONFIG_SYS_OMAP24_I2C_SLAVE 1
#define CONFIG_SYS_I2C_OMAP24XX
#define CONFIG_CMD_I2C
/* GPIO */
#define CONFIG_OMAP_GPIO
#define CONFIG_CMD_GPIO
/*
* ----------------------------------------------------------------------------
* The following are general good-enough settings for U-Boot. We set a
* large malloc pool as we generally have a lot of DDR, and we opt for
* function over binary size in the main portion of U-Boot as this is
* generally easily constrained later if needed. We enable the config
* options that give us information in the environment about what board
* we are on so we do not need to rely on the command prompt. We set a
* console baudrate of 115200 and use the default baud rate table.
*/
#define CONFIG_SYS_MALLOC_LEN (1024 << 10)
#define CONFIG_SYS_HUSH_PARSER
#define CONFIG_SYS_PROMPT "U-Boot (BuR V2.0)# "
#define CONFIG_SYS_CONSOLE_INFO_QUIET
#define CONFIG_ENV_OVERWRITE /* Overwrite ethaddr / serial# */
/* As stated above, the following choices are optional. */
#define CONFIG_SYS_LONGHELP
#define CONFIG_AUTO_COMPLETE
#define CONFIG_CMDLINE_EDITING
#define CONFIG_VERSION_VARIABLE
/* We set the max number of command args high to avoid HUSH bugs. */
#define CONFIG_SYS_MAXARGS 64
/* Console I/O Buffer Size */
#define CONFIG_SYS_CBSIZE 512
/* Print Buffer Size */
#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE +\
sizeof(CONFIG_SYS_PROMPT) + 16)
/* Boot Argument Buffer Size */
#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE
/*
* For commands to use, we take the default list and add a few other
* useful commands. Note that we must have set CONFIG_SYS_NO_FLASH
* prior to this include, in order to skip a few commands. When we do
* have flash, if we expect these commands they must be enabled in that
* config. If desired, a specific list of desired commands can be used
* instead.
*/
#include <config_cmd_default.h>
/* undefine commands, which we do not need */
#undef CONFIG_CMD_EDITENV
#undef CONFIG_CMD_FPGA
#undef CONFIG_CMD_IMI
#undef CONFIG_CMD_ITEST
#undef CONFIG_CMD_LOADS
#undef CONFIG_CMD_LOADB
#undef CONFIG_CMD_NFS
#undef CONFIG_CMD_SETGETDCR
#undef CONFIG_CMD_XIMG
#undef CONFIG_CMD_CRC32
/* define command we need always */
#define CONFIG_CMD_ECHO
#define CONFIG_CMD_SOURCE
/*
* Our platforms make use of SPL to initalize the hardware (primarily
* memory) enough for full U-Boot to be loaded. We also support Falcon
* Mode so that the Linux kernel can be booted directly from SPL
* instead, if desired. We make use of the general SPL framework found
* under common/spl/. Given our generally common memory map, we set a
* number of related defaults and sizes here.
*/
#define CONFIG_SPL_FRAMEWORK
/*
* Place the image at the start of the ROM defined image space.
* We limit our size to the ROM-defined downloaded image area, and use the
* rest of the space for stack. We load U-Boot itself into memory at
* 0x80800000 for legacy reasons (to not conflict with older SPLs). We
* have our BSS be placed 1MiB after this, to allow for the default
* Linux kernel address of 0x80008000 to work, in the Falcon Mode case.
* We have the SPL malloc pool at the end of the BSS area.
*
* ----------------------------------------------------------------------------
*/
#define CONFIG_SPL_STACK CONFIG_SYS_INIT_SP_ADDR
#undef CONFIG_SYS_TEXT_BASE
#define CONFIG_SYS_TEXT_BASE 0x80800000
#define CONFIG_SPL_BSS_START_ADDR 0x80A00000
#define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */
#define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SPL_BSS_START_ADDR + \
CONFIG_SPL_BSS_MAX_SIZE)
#define CONFIG_SYS_SPL_MALLOC_SIZE CONFIG_SYS_MALLOC_LEN
/* General parts of the framework, required. */
#define CONFIG_SPL_I2C_SUPPORT
#define CONFIG_SPL_LIBCOMMON_SUPPORT
#define CONFIG_SPL_LIBGENERIC_SUPPORT
#define CONFIG_SPL_SERIAL_SUPPORT
#define CONFIG_SPL_BOARD_INIT
#define CONFIG_SPL_YMODEM_SUPPORT
#define CONFIG_SPL_LDSCRIPT "$(CPUDIR)/am33xx/u-boot-spl.lds"
#endif /* ! __BUR_AM335X_COMMON_H__ */
|
