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893c04e1 HP |
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 | /* ------------------------------------------------------------------------- */ | |
29a0d9c0 HP |
15 | #define CONFIG_SYS_GENERIC_BOARD |
16 | ||
893c04e1 HP |
17 | #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 */ | |
96de041e | 27 | #define CONFIG_SPL_AM33XX_ENABLE_RTC32K_OSC /* enable 32kHz OSC at bootime */ |
893c04e1 HP |
28 | #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 | |
893c04e1 HP |
56 | #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 | |
99 | ||
100 | /* 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 | |
154 | #undef CONFIG_CMD_CRC32 | |
155 | /* define command we need always */ | |
156 | #define CONFIG_CMD_ECHO | |
157 | #define CONFIG_CMD_SOURCE | |
158 | ||
159 | /* | |
160 | * Our platforms make use of SPL to initalize the hardware (primarily | |
161 | * memory) enough for full U-Boot to be loaded. We also support Falcon | |
162 | * Mode so that the Linux kernel can be booted directly from SPL | |
163 | * instead, if desired. We make use of the general SPL framework found | |
164 | * under common/spl/. Given our generally common memory map, we set a | |
165 | * number of related defaults and sizes here. | |
166 | */ | |
167 | #define CONFIG_SPL | |
168 | #define CONFIG_SPL_FRAMEWORK | |
169 | /* | |
170 | * Place the image at the start of the ROM defined image space. | |
171 | * We limit our size to the ROM-defined downloaded image area, and use the | |
172 | * rest of the space for stack. We load U-Boot itself into memory at | |
173 | * 0x80800000 for legacy reasons (to not conflict with older SPLs). We | |
174 | * have our BSS be placed 1MiB after this, to allow for the default | |
175 | * Linux kernel address of 0x80008000 to work, in the Falcon Mode case. | |
176 | * We have the SPL malloc pool at the end of the BSS area. | |
177 | * | |
178 | * ---------------------------------------------------------------------------- | |
179 | */ | |
180 | #define CONFIG_SPL_STACK CONFIG_SYS_INIT_SP_ADDR | |
181 | #undef CONFIG_SYS_TEXT_BASE | |
182 | #define CONFIG_SYS_TEXT_BASE 0x80800000 | |
183 | #define CONFIG_SPL_BSS_START_ADDR 0x80A00000 | |
184 | #define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */ | |
185 | #define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SPL_BSS_START_ADDR + \ | |
186 | CONFIG_SPL_BSS_MAX_SIZE) | |
187 | #define CONFIG_SYS_SPL_MALLOC_SIZE CONFIG_SYS_MALLOC_LEN | |
188 | ||
189 | /* General parts of the framework, required. */ | |
190 | #define CONFIG_SPL_I2C_SUPPORT | |
191 | #define CONFIG_SPL_LIBCOMMON_SUPPORT | |
192 | #define CONFIG_SPL_LIBGENERIC_SUPPORT | |
193 | #define CONFIG_SPL_SERIAL_SUPPORT | |
194 | #define CONFIG_SPL_BOARD_INIT | |
195 | #define CONFIG_SPL_YMODEM_SUPPORT | |
196 | #define CONFIG_SPL_LDSCRIPT "$(CPUDIR)/am33xx/u-boot-spl.lds" | |
197 | ||
198 | #endif /* ! __BUR_AM335X_COMMON_H__ */ |