1 /*
2  * bur_am335x_common.h
3  *
4  * common parts used by B&R AM335x based boards
5  *
6  * Copyright (C) 2013 Hannes Schmelzer <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 setenv ncip ${serverip}; " \
21 "else " \
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; " \
24 "fi; " \
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"
28 
29 #define CONFIG_CMD_TIME
30 
31 #define CONFIG_SYS_GENERIC_BOARD
32 
33 #define CONFIG_AM33XX
34 #define CONFIG_OMAP
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 */
39 
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
46 
47 #define CONFIG_SYS_NO_FLASH		/* have no NOR-flash */
48 
49 #include <asm/arch/omap.h>
50 
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
58 
59 /* Network defines */
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
70 #define CONFIG_PHYLIB
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"
75 /* Network console */
76 #define CONFIG_NETCONSOLE			1
77 #define CONFIG_BOOTP_MAY_FAIL		/* if we don't have DHCP environment */
78 /*
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.
84  */
85 #define CONFIG_SPL_TEXT_BASE		0x402F0400
86 #define CONFIG_SPL_MAX_SIZE		(0x4030B800 - CONFIG_SPL_TEXT_BASE)
87 
88 /*
89  * Since SPL did pll and ddr initialization for us,
90  * we don't need to do it twice.
91  */
92 #if !defined(CONFIG_SPL_BUILD) && !defined(CONFIG_NOR_BOOT)
93 #define CONFIG_SKIP_LOWLEVEL_INIT
94 #endif /* !CONFIG_SPL_BUILD, ... */
95 /*
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.
98  */
99 #define CONFIG_SYS_LOAD_ADDR		0x80000000
100 /*
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.
105  */
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)
110 
111 /* I2C */
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
117 /* GPIO */
118 #define CONFIG_OMAP_GPIO
119 #define CONFIG_CMD_GPIO
120 /*
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.
129  */
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
137 
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
143 
144 /* We set the max number of command args high to avoid HUSH bugs. */
145 #define CONFIG_SYS_MAXARGS		64
146 
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
154 
155 /*
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.
162  */
163 #define CONFIG_SPL_FRAMEWORK
164 /*
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.
172  *
173  * ----------------------------------------------------------------------------
174  */
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
182 
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"
191 
192 #endif	/* ! __BUR_AM335X_COMMON_H__ */
193