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 "brdefaultip=if test -r ${ipaddr}; then; else" \
18 " setenv ipaddr 192.168.60.1; setenv serverip 192.168.60.254;" \
19 " setenv gatewayip 192.168.60.254; setenv netmask 255.255.255.0; fi;\0" \
20 "netconsole=echo switching to network console ...; " \
21 "if dhcp; then; else run brdefaultip; fi; setenv ncip ${serverip}; " \
22 "setcurs 1 9; lcdputs myip; setcurs 10 9; lcdputs ${ipaddr};" \
23 "setcurs 1 10;lcdputs serverip; setcurs 10 10; lcdputs ${serverip};" \
24 "setenv stdout nc;setenv stdin nc;setenv stderr nc\0"
25 
26 #define CONFIG_PREBOOT			"run brdefaultip"
27 #define CONFIG_CMD_TIME
28 
29 
30 #define CONFIG_AM33XX
31 #define CONFIG_OMAP
32 #define CONFIG_OMAP_COMMON
33 #define CONFIG_BOARD_LATE_INIT
34 #define CONFIG_SYS_CACHELINE_SIZE	64
35 #define CONFIG_MAX_RAM_BANK_SIZE	(1024 << 20)	/* 1GB */
36 
37 /* Timer information */
38 #define CONFIG_SYS_PTV			2	/* Divisor: 2^(PTV+1) => 8 */
39 #define CONFIG_SYS_TIMERBASE		0x48040000	/* Use Timer2 */
40 #define CONFIG_SPL_AM33XX_ENABLE_RTC32K_OSC	/* enable 32kHz OSC at bootime */
41 #define CONFIG_SPL_POWER_SUPPORT
42 #define CONFIG_POWER_TPS65217
43 
44 #define CONFIG_SYS_NO_FLASH		/* have no NOR-flash */
45 
46 #include <asm/arch/omap.h>
47 
48 /* NS16550 Configuration */
49 #define CONFIG_SYS_NS16550_SERIAL
50 #define CONFIG_SYS_NS16550_REG_SIZE	(-4)
51 #define CONFIG_SYS_NS16550_CLK		48000000
52 #define CONFIG_SYS_NS16550_COM1		0x44e09000	/* UART0 */
53 #define CONFIG_BAUDRATE			115200
54 
55 /* Network defines */
56 #define CONFIG_CMD_DHCP
57 #define CONFIG_BOOTP_DNS		/* Configurable parts of CMD_DHCP */
58 #define CONFIG_BOOTP_SEND_HOSTNAME
59 #define CONFIG_BOOTP_GATEWAY
60 #define CONFIG_BOOTP_SUBNETMASK
61 #define CONFIG_NET_RETRY_COUNT		2
62 #define CONFIG_CMD_PING
63 #define CONFIG_DRIVER_TI_CPSW		/* Driver for IP block */
64 #define CONFIG_MII			/* Required in net/eth.c */
65 #define CONFIG_SPL_ETH_SUPPORT
66 #define CONFIG_PHYLIB
67 #define CONFIG_PHY_NATSEMI
68 #define CONFIG_SPL_NET_SUPPORT
69 #define CONFIG_SPL_ENV_SUPPORT		/* used for a fetching MAC-Address */
70 #define CONFIG_SPL_NET_VCI_STRING	"AM335x U-Boot SPL"
71 /* Network console */
72 #define CONFIG_NETCONSOLE			1
73 #define CONFIG_BOOTP_MAY_FAIL		/* if we don't have DHCP environment */
74 /*
75  * SPL related defines.  The Public RAM memory map the ROM defines the
76  * area between 0x402F0400 and 0x4030B800 as a download area and
77  * 0x4030B800 to 0x4030CE00 as a public stack area.  The ROM also
78  * supports X-MODEM loading via UART, and we leverage this and then use
79  * Y-MODEM to load u-boot.img, when booted over UART.
80  */
81 #define CONFIG_SPL_TEXT_BASE		0x402F0400
82 #define CONFIG_SPL_MAX_SIZE		(0x4030B800 - CONFIG_SPL_TEXT_BASE)
83 
84 /*
85  * Since SPL did pll and ddr initialization for us,
86  * we don't need to do it twice.
87  */
88 #if !defined(CONFIG_SPL_BUILD) && !defined(CONFIG_NOR_BOOT)
89 #define CONFIG_SKIP_LOWLEVEL_INIT
90 #endif /* !CONFIG_SPL_BUILD, ... */
91 /*
92  * Our DDR memory always starts at 0x80000000 and U-Boot shall have
93  * relocated itself to higher in memory by the time this value is used.
94  */
95 #define CONFIG_SYS_LOAD_ADDR		0x80000000
96 /*
97  * ----------------------------------------------------------------------------
98  * DDR information.  We say (for simplicity) that we have 1 bank,
99  * always, even when we have more.  We always start at 0x80000000,
100  * and we place the initial stack pointer in our SRAM.
101  */
102 #define CONFIG_NR_DRAM_BANKS		1
103 #define CONFIG_SYS_SDRAM_BASE		0x80000000
104 #define CONFIG_SYS_INIT_SP_ADDR		(NON_SECURE_SRAM_END - \
105 					GENERATED_GBL_DATA_SIZE)
106 
107 /* I2C */
108 #define CONFIG_SYS_I2C
109 #define CONFIG_SYS_OMAP24_I2C_SPEED	100000
110 #define CONFIG_SYS_OMAP24_I2C_SLAVE	1
111 #define CONFIG_SYS_I2C_OMAP24XX
112 #define CONFIG_CMD_I2C
113 /* GPIO */
114 #define CONFIG_OMAP_GPIO
115 /*
116  * ----------------------------------------------------------------------------
117  * The following are general good-enough settings for U-Boot.  We set a
118  * large malloc pool as we generally have a lot of DDR, and we opt for
119  * function over binary size in the main portion of U-Boot as this is
120  * generally easily constrained later if needed.  We enable the config
121  * options that give us information in the environment about what board
122  * we are on so we do not need to rely on the command prompt.  We set a
123  * console baudrate of 115200 and use the default baud rate table.
124  */
125 #define CONFIG_SYS_MALLOC_LEN		(5120 << 10)
126 #define CONFIG_SYS_HUSH_PARSER
127 #define CONFIG_SYS_CONSOLE_INFO_QUIET
128 #define CONFIG_ENV_OVERWRITE		/* Overwrite ethaddr / serial# */
129 #define CONFIG_SYS_CONSOLE_IS_IN_ENV
130 #define CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
131 
132 /* As stated above, the following choices are optional. */
133 #define CONFIG_SYS_LONGHELP
134 #define CONFIG_AUTO_COMPLETE
135 #define CONFIG_CMDLINE_EDITING
136 #define CONFIG_VERSION_VARIABLE
137 
138 /* We set the max number of command args high to avoid HUSH bugs. */
139 #define CONFIG_SYS_MAXARGS		64
140 
141 /* Console I/O Buffer Size */
142 #define CONFIG_SYS_CBSIZE		512
143 /* Print Buffer Size */
144 #define CONFIG_SYS_PBSIZE		(CONFIG_SYS_CBSIZE +\
145 					sizeof(CONFIG_SYS_PROMPT) + 16)
146 /* Boot Argument Buffer Size */
147 #define CONFIG_SYS_BARGSIZE		CONFIG_SYS_CBSIZE
148 
149 /*
150  * Our platforms make use of SPL to initalize the hardware (primarily
151  * memory) enough for full U-Boot to be loaded.  We also support Falcon
152  * Mode so that the Linux kernel can be booted directly from SPL
153  * instead, if desired.  We make use of the general SPL framework found
154  * under common/spl/.  Given our generally common memory map, we set a
155  * number of related defaults and sizes here.
156  */
157 #define CONFIG_SPL_FRAMEWORK
158 /*
159  * Place the image at the start of the ROM defined image space.
160  * We limit our size to the ROM-defined downloaded image area, and use the
161  * rest of the space for stack.  We load U-Boot itself into memory at
162  * 0x80800000 for legacy reasons (to not conflict with older SPLs).  We
163  * have our BSS be placed 1MiB after this, to allow for the default
164  * Linux kernel address of 0x80008000 to work, in the Falcon Mode case.
165  * We have the SPL malloc pool at the end of the BSS area.
166  *
167  * ----------------------------------------------------------------------------
168  */
169 #undef  CONFIG_SYS_TEXT_BASE
170 #define CONFIG_SYS_TEXT_BASE		0x80800000
171 #define CONFIG_SPL_BSS_START_ADDR	0x80A00000
172 #define CONFIG_SPL_BSS_MAX_SIZE		0x80000		/* 512 KB */
173 #define CONFIG_SYS_SPL_MALLOC_START	(CONFIG_SPL_BSS_START_ADDR + \
174 					CONFIG_SPL_BSS_MAX_SIZE)
175 #define CONFIG_SYS_SPL_MALLOC_SIZE	CONFIG_SYS_MALLOC_LEN
176 
177 /* General parts of the framework, required. */
178 #define CONFIG_SPL_I2C_SUPPORT
179 #define CONFIG_SPL_LIBCOMMON_SUPPORT
180 #define CONFIG_SPL_LIBGENERIC_SUPPORT
181 #define CONFIG_SPL_SERIAL_SUPPORT
182 #define CONFIG_SPL_BOARD_INIT
183 #define CONFIG_SPL_YMODEM_SUPPORT
184 #define CONFIG_SPL_LDSCRIPT		"$(CPUDIR)/am33xx/u-boot-spl.lds"
185 
186 #endif	/* ! __BUR_AM335X_COMMON_H__ */
187