1 /*
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 /* ------------------------------------------------------------------------- */
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 " \
21 "setenv ncip ${serverip}; else " \
22 "setenv ncip 192.168.60.254; " \
23 "setenv serverip 192.168.60.254; " \
24 "setenv gatewayip 192.168.60.254; " \
25 "setenv ipaddr 192.168.60.1; " \
26 "fi;" \
27 "setenv netdisplay0 '" \
28 "setcurs 1 9; puts myip; setcurs 10 9; puts ${ipaddr};" \
29 "setcurs 1 10;puts serverip; setcurs 10 10; puts ${serverip};" \
30 "run netdisplay0; " \
31 "setenv stdout nc;setenv stdin nc;setenv stderr nc\0"
32 
33 #define CONFIG_CMD_TIME
34 
35 #define CONFIG_SYS_GENERIC_BOARD
36 
37 #define CONFIG_AM33XX
38 #define CONFIG_OMAP
39 #define CONFIG_OMAP_COMMON
40 #define CONFIG_BOARD_LATE_INIT
41 #define CONFIG_SYS_CACHELINE_SIZE	64
42 #define CONFIG_MAX_RAM_BANK_SIZE	(1024 << 20)	/* 1GB */
43 
44 /* Timer information */
45 #define CONFIG_SYS_PTV			2	/* Divisor: 2^(PTV+1) => 8 */
46 #define CONFIG_SYS_TIMERBASE		0x48040000	/* Use Timer2 */
47 #define CONFIG_SPL_AM33XX_ENABLE_RTC32K_OSC	/* enable 32kHz OSC at bootime */
48 #define CONFIG_SPL_POWER_SUPPORT
49 #define CONFIG_POWER_TPS65217
50 
51 #define CONFIG_SYS_NO_FLASH		/* have no NOR-flash */
52 
53 #include <asm/arch/omap.h>
54 
55 /* NS16550 Configuration */
56 #define CONFIG_SYS_NS16550
57 #define CONFIG_SYS_NS16550_SERIAL
58 #define CONFIG_SYS_NS16550_REG_SIZE	(-4)
59 #define CONFIG_SYS_NS16550_CLK		48000000
60 #define CONFIG_SYS_NS16550_COM1		0x44e09000	/* UART0 */
61 #define CONFIG_BAUDRATE			115200
62 
63 /* Network defines */
64 #define CONFIG_CMD_NET			/* 'bootp' and 'tftp' */
65 #define CONFIG_CMD_DHCP
66 #define CONFIG_BOOTP_DNS		/* Configurable parts of CMD_DHCP */
67 #define CONFIG_BOOTP_SEND_HOSTNAME
68 #define CONFIG_BOOTP_GATEWAY
69 #define CONFIG_BOOTP_SUBNETMASK
70 #define CONFIG_NET_RETRY_COUNT		2
71 #define CONFIG_CMD_PING
72 #define CONFIG_DRIVER_TI_CPSW		/* Driver for IP block */
73 #define CONFIG_MII			/* Required in net/eth.c */
74 #define CONFIG_SPL_ETH_SUPPORT
75 #define CONFIG_PHYLIB
76 #define CONFIG_PHY_NATSEMI
77 #define CONFIG_SPL_NET_SUPPORT
78 #define CONFIG_SPL_ENV_SUPPORT		/* used for a fetching MAC-Address */
79 #define CONFIG_SPL_NET_VCI_STRING	"AM335x U-Boot SPL"
80 /* Network console */
81 #define CONFIG_NETCONSOLE			1
82 #define CONFIG_BOOTP_MAY_FAIL		/* if we don't have DHCP environment */
83 /*
84  * SPL related defines.  The Public RAM memory map the ROM defines the
85  * area between 0x402F0400 and 0x4030B800 as a download area and
86  * 0x4030B800 to 0x4030CE00 as a public stack area.  The ROM also
87  * supports X-MODEM loading via UART, and we leverage this and then use
88  * Y-MODEM to load u-boot.img, when booted over UART.
89  */
90 #define CONFIG_SPL_TEXT_BASE		0x402F0400
91 #define CONFIG_SPL_MAX_SIZE		(0x4030B800 - CONFIG_SPL_TEXT_BASE)
92 
93 /*
94  * Since SPL did pll and ddr initialization for us,
95  * we don't need to do it twice.
96  */
97 #if !defined(CONFIG_SPL_BUILD) && !defined(CONFIG_NOR_BOOT)
98 #define CONFIG_SKIP_LOWLEVEL_INIT
99 #endif /* !CONFIG_SPL_BUILD, ... */
100 /*
101  * Our DDR memory always starts at 0x80000000 and U-Boot shall have
102  * relocated itself to higher in memory by the time this value is used.
103  */
104 #define CONFIG_SYS_LOAD_ADDR		0x80000000
105 /*
106  * ----------------------------------------------------------------------------
107  * DDR information.  We say (for simplicity) that we have 1 bank,
108  * always, even when we have more.  We always start at 0x80000000,
109  * and we place the initial stack pointer in our SRAM.
110  */
111 #define CONFIG_NR_DRAM_BANKS		1
112 #define CONFIG_SYS_SDRAM_BASE		0x80000000
113 #define CONFIG_SYS_INIT_SP_ADDR		(NON_SECURE_SRAM_END - \
114 					GENERATED_GBL_DATA_SIZE)
115 
116 /* I2C */
117 #define CONFIG_SYS_I2C
118 #define CONFIG_SYS_OMAP24_I2C_SPEED	100000
119 #define CONFIG_SYS_OMAP24_I2C_SLAVE	1
120 #define CONFIG_SYS_I2C_OMAP24XX
121 #define CONFIG_CMD_I2C
122 /* GPIO */
123 #define CONFIG_OMAP_GPIO
124 #define CONFIG_CMD_GPIO
125 /*
126  * ----------------------------------------------------------------------------
127  * The following are general good-enough settings for U-Boot.  We set a
128  * large malloc pool as we generally have a lot of DDR, and we opt for
129  * function over binary size in the main portion of U-Boot as this is
130  * generally easily constrained later if needed.  We enable the config
131  * options that give us information in the environment about what board
132  * we are on so we do not need to rely on the command prompt.  We set a
133  * console baudrate of 115200 and use the default baud rate table.
134  */
135 #define CONFIG_SYS_MALLOC_LEN		(5120 << 10)
136 #define CONFIG_SYS_HUSH_PARSER
137 #define CONFIG_SYS_PROMPT		"U-Boot (BuR V2.0)# "
138 #define CONFIG_SYS_CONSOLE_INFO_QUIET
139 #define CONFIG_ENV_OVERWRITE		/* Overwrite ethaddr / serial# */
140 #define CONFIG_SYS_CONSOLE_IS_IN_ENV
141 #define CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
142 
143 /* As stated above, the following choices are optional. */
144 #define CONFIG_SYS_LONGHELP
145 #define CONFIG_AUTO_COMPLETE
146 #define CONFIG_CMDLINE_EDITING
147 #define CONFIG_VERSION_VARIABLE
148 
149 /* We set the max number of command args high to avoid HUSH bugs. */
150 #define CONFIG_SYS_MAXARGS		64
151 
152 /* Console I/O Buffer Size */
153 #define CONFIG_SYS_CBSIZE		512
154 /* Print Buffer Size */
155 #define CONFIG_SYS_PBSIZE		(CONFIG_SYS_CBSIZE +\
156 					sizeof(CONFIG_SYS_PROMPT) + 16)
157 /* Boot Argument Buffer Size */
158 #define CONFIG_SYS_BARGSIZE		CONFIG_SYS_CBSIZE
159 /*
160  * For commands to use, we take the default list and add a few other
161  * useful commands.  Note that we must have set CONFIG_SYS_NO_FLASH
162  * prior to this include, in order to skip a few commands.  When we do
163  * have flash, if we expect these commands they must be enabled in that
164  * config.  If desired, a specific list of desired commands can be used
165  * instead.
166  */
167 #include <config_cmd_default.h>
168 /* undefine commands, which we do not need */
169 #undef CONFIG_CMD_EDITENV
170 #undef CONFIG_CMD_FPGA
171 #undef CONFIG_CMD_IMI
172 #undef CONFIG_CMD_ITEST
173 #undef CONFIG_CMD_LOADS
174 #undef CONFIG_CMD_LOADB
175 #undef CONFIG_CMD_NFS
176 #undef CONFIG_CMD_SETGETDCR
177 #undef CONFIG_CMD_XIMG
178 /* define command we need always */
179 #define CONFIG_CMD_ECHO
180 #define CONFIG_CMD_SOURCE
181 
182 /*
183  * Our platforms make use of SPL to initalize the hardware (primarily
184  * memory) enough for full U-Boot to be loaded.  We also support Falcon
185  * Mode so that the Linux kernel can be booted directly from SPL
186  * instead, if desired.  We make use of the general SPL framework found
187  * under common/spl/.  Given our generally common memory map, we set a
188  * number of related defaults and sizes here.
189  */
190 #define CONFIG_SPL_FRAMEWORK
191 /*
192  * Place the image at the start of the ROM defined image space.
193  * We limit our size to the ROM-defined downloaded image area, and use the
194  * rest of the space for stack.  We load U-Boot itself into memory at
195  * 0x80800000 for legacy reasons (to not conflict with older SPLs).  We
196  * have our BSS be placed 1MiB after this, to allow for the default
197  * Linux kernel address of 0x80008000 to work, in the Falcon Mode case.
198  * We have the SPL malloc pool at the end of the BSS area.
199  *
200  * ----------------------------------------------------------------------------
201  */
202 #undef  CONFIG_SYS_TEXT_BASE
203 #define CONFIG_SYS_TEXT_BASE		0x80800000
204 #define CONFIG_SPL_BSS_START_ADDR	0x80A00000
205 #define CONFIG_SPL_BSS_MAX_SIZE		0x80000		/* 512 KB */
206 #define CONFIG_SYS_SPL_MALLOC_START	(CONFIG_SPL_BSS_START_ADDR + \
207 					CONFIG_SPL_BSS_MAX_SIZE)
208 #define CONFIG_SYS_SPL_MALLOC_SIZE	CONFIG_SYS_MALLOC_LEN
209 
210 /* General parts of the framework, required. */
211 #define CONFIG_SPL_I2C_SUPPORT
212 #define CONFIG_SPL_LIBCOMMON_SUPPORT
213 #define CONFIG_SPL_LIBGENERIC_SUPPORT
214 #define CONFIG_SPL_SERIAL_SUPPORT
215 #define CONFIG_SPL_BOARD_INIT
216 #define CONFIG_SPL_YMODEM_SUPPORT
217 #define CONFIG_SPL_LDSCRIPT		"$(CPUDIR)/am33xx/u-boot-spl.lds"
218 
219 #endif	/* ! __BUR_AM335X_COMMON_H__ */
220