4 * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
6 * SPDX-License-Identifier: GPL-2.0+
8 * The various ARMv7 SoCs from TI all share a number of IP blocks when
9 * implementing a given feature. Rather than define these in every
10 * board or even SoC common file, we define a common file to be re-used
11 * in all cases. While technically true that some of these details are
12 * configurable at the board design, they are common throughout SoC
13 * reference platforms as well as custom designs and become de facto
17 #ifndef __CONFIG_TI_ARMV7_COMMON_H__
18 #define __CONFIG_TI_ARMV7_COMMON_H__
21 * We typically do not contain NOR flash. In the cases where we do, we
22 * undefine this later.
24 #define CONFIG_SYS_NO_FLASH
26 /* Support both device trees and ATAGs. */
27 #define CONFIG_OF_LIBFDT
28 #define CONFIG_CMDLINE_TAG
29 #define CONFIG_SETUP_MEMORY_TAGS
30 #define CONFIG_INITRD_TAG
33 * Our DDR memory always starts at 0x80000000 and U-Boot shall have
34 * relocated itself to higher in memory by the time this value is used.
35 * However, set this to a 32MB offset to allow for easier Linux kernel
36 * booting as the default is often used as the kernel load address.
38 #define CONFIG_SYS_LOAD_ADDR 0x82000000
41 * We setup defaults based on constraints from the Linux kernel, which should
42 * also be safe elsewhere. We have the default load at 32MB into DDR (for
43 * the kernel), FDT above 128MB (the maximum location for the end of the
44 * kernel), and the ramdisk 512KB above that (allowing for hopefully never
45 * seen large trees). We say all of this must be within the first 256MB
46 * as that will normally be within the kernel lowmem and thus visible via
47 * bootm_size and we only run on platforms with 256MB or more of memory.
49 #define DEFAULT_LINUX_BOOT_ENV \
50 "loadaddr=0x82000000\0" \
51 "kernel_addr_r=0x82000000\0" \
52 "fdtaddr=0x88000000\0" \
53 "fdt_addr_r=0x88000000\0" \
54 "rdaddr=0x88080000\0" \
55 "ramdisk_addr_r=0x88080000\0" \
56 "scriptaddr=0x80000000\0" \
57 "pxefile_addr_r=0x80100000\0" \
58 "bootm_size=0x10000000\0"
60 #define DEFAULT_MMC_TI_ARGS \
62 "mmcrootfstype=ext4 rootwait\0" \
63 "finduuid=part uuid mmc 0:2 uuid\0" \
64 "args_mmc=run finduuid;setenv bootargs console=${console} " \
66 "root=PARTUUID=${uuid} rw " \
67 "rootfstype=${mmcrootfstype}\0"
70 * DDR information. If the CONFIG_NR_DRAM_BANKS is not defined,
71 * we say (for simplicity) that we have 1 bank, always, even when
72 * we have more. We always start at 0x80000000, and we place the
73 * initial stack pointer in our SRAM. Otherwise, we can define
74 * CONFIG_NR_DRAM_BANKS before including this file.
76 #ifndef CONFIG_NR_DRAM_BANKS
77 #define CONFIG_NR_DRAM_BANKS 1
79 #define CONFIG_SYS_SDRAM_BASE 0x80000000
81 #ifndef CONFIG_SYS_INIT_SP_ADDR
82 #define CONFIG_SYS_INIT_SP_ADDR (NON_SECURE_SRAM_END - \
83 GENERATED_GBL_DATA_SIZE)
86 /* Timer information. */
87 #define CONFIG_SYS_PTV 2 /* Divisor: 2^(PTV+1) => 8 */
91 #define CONFIG_CMD_I2C
92 #define CONFIG_SYS_I2C
96 #define CONFIG_GENERIC_MMC
97 #define CONFIG_CMD_MMC
101 #define CONFIG_CMD_SPI
104 #define CONFIG_CMD_GPIO
107 * The following are general good-enough settings for U-Boot. We set a
108 * large malloc pool as we generally have a lot of DDR, and we opt for
109 * function over binary size in the main portion of U-Boot as this is
110 * generally easily constrained later if needed. We enable the config
111 * options that give us information in the environment about what board
112 * we are on so we do not need to rely on the command prompt. We set a
113 * console baudrate of 115200 and use the default baud rate table.
115 #ifdef CONFIG_DFU_MMC
116 #define CONFIG_SYS_MALLOC_LEN ((16 << 20) + CONFIG_SYS_DFU_DATA_BUF_SIZE)
118 #define CONFIG_SYS_MALLOC_LEN (16 << 20)
120 #define CONFIG_SYS_HUSH_PARSER
121 #define CONFIG_SYS_CONSOLE_INFO_QUIET
122 #define CONFIG_BAUDRATE 115200
123 #define CONFIG_ENV_VARS_UBOOT_CONFIG /* Strongly encouraged */
124 #define CONFIG_ENV_OVERWRITE /* Overwrite ethaddr / serial# */
126 /* As stated above, the following choices are optional. */
127 #define CONFIG_SYS_LONGHELP
128 #define CONFIG_AUTO_COMPLETE
129 #define CONFIG_CMDLINE_EDITING
130 #define CONFIG_VERSION_VARIABLE
132 /* We set the max number of command args high to avoid HUSH bugs. */
133 #define CONFIG_SYS_MAXARGS 64
135 /* Console I/O Buffer Size */
136 #define CONFIG_SYS_CBSIZE 512
137 /* Print Buffer Size */
138 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE \
139 + sizeof(CONFIG_SYS_PROMPT) + 16)
140 /* Boot Argument Buffer Size */
141 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE
144 * When we have SPI, NOR or NAND flash we expect to be making use of
145 * mtdparts, both for ease of use in U-Boot and for passing information
146 * on to the Linux kernel.
148 #if defined(CONFIG_SPI_BOOT) || defined(CONFIG_NOR) || defined(CONFIG_NAND) || defined(CONFIG_NAND_DAVINCI)
149 #define CONFIG_MTD_DEVICE /* Required for mtdparts */
150 #define CONFIG_CMD_MTDPARTS
153 #define CONFIG_CMD_ASKENV
154 #define CONFIG_CMD_BOOTZ
155 #define CONFIG_SUPPORT_RAW_INITRD
158 * Common filesystems support. When we have removable storage we
159 * enabled a number of useful commands and support.
161 #if defined(CONFIG_MMC) || defined(CONFIG_USB_STORAGE)
162 #define CONFIG_DOS_PARTITION
163 #define CONFIG_CMD_FAT
164 #define CONFIG_FAT_WRITE
165 #define CONFIG_CMD_EXT2
166 #define CONFIG_CMD_EXT4
167 #define CONFIG_CMD_FS_GENERIC
168 #define CONFIG_PARTITION_UUIDS
169 #define CONFIG_CMD_PART
173 * Our platforms make use of SPL to initalize the hardware (primarily
174 * memory) enough for full U-Boot to be loaded. We also support Falcon
175 * Mode so that the Linux kernel can be booted directly from SPL
176 * instead, if desired. We make use of the general SPL framework found
177 * under common/spl/. Given our generally common memory map, we set a
178 * number of related defaults and sizes here.
180 #if !defined(CONFIG_NOR_BOOT) && \
181 !(defined(CONFIG_QSPI_BOOT) && defined(CONFIG_AM43XX))
182 #define CONFIG_SPL_FRAMEWORK
183 #define CONFIG_SPL_OS_BOOT
186 * Place the image at the start of the ROM defined image space (per
187 * CONFIG_SPL_TEXT_BASE and we limit our size to the ROM-defined
188 * downloaded image area. We initalize DRAM as soon as we can so that
189 * we can place stack, malloc and BSS there. We load U-Boot itself into
190 * memory at 0x80800000 for legacy reasons (to not conflict with older
191 * SPLs). We have our BSS be placed 2MiB after this, to allow for the
192 * default Linux kernel address of 0x80008000 to work with most sized
193 * kernels, in the Falcon Mode case. We have the SPL malloc pool at the
194 * end of the BSS area. We suggest that the stack be placed at 32MiB after
195 * the start of DRAM to allow room for all of the above (handled in Kconfig).
197 #ifndef CONFIG_SYS_TEXT_BASE
198 #define CONFIG_SYS_TEXT_BASE 0x80800000
200 #ifndef CONFIG_SPL_BSS_START_ADDR
201 #define CONFIG_SPL_BSS_START_ADDR 0x80a00000
202 #define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */
204 #ifndef CONFIG_SYS_SPL_MALLOC_START
205 #define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SPL_BSS_START_ADDR + \
206 CONFIG_SPL_BSS_MAX_SIZE)
207 #define CONFIG_SYS_SPL_MALLOC_SIZE CONFIG_SYS_MALLOC_LEN
210 /* RAW SD card / eMMC locations. */
211 #define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR 0x300 /* address 0x60000 */
212 #define CONFIG_SYS_U_BOOT_MAX_SIZE_SECTORS 0x200 /* 256 KB */
214 /* FAT sd card locations. */
215 #define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION 1
216 #define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img"
218 #ifdef CONFIG_SPL_OS_BOOT
220 #define CONFIG_SPL_FS_LOAD_KERNEL_NAME "uImage"
221 #define CONFIG_SPL_FS_LOAD_ARGS_NAME "args"
223 /* RAW SD card / eMMC */
224 #define CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR 0x900 /* address 0x120000 */
225 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR 0x80 /* address 0x10000 */
226 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS 0x80 /* 64KiB */
228 /* spl export command */
229 #define CONFIG_CMD_SPL
233 #define CONFIG_SPL_LIBDISK_SUPPORT
234 #define CONFIG_SPL_MMC_SUPPORT
235 #define CONFIG_SPL_FAT_SUPPORT
236 #define CONFIG_SPL_EXT_SUPPORT
239 #define CONFIG_SYS_THUMB_BUILD
241 /* General parts of the framework, required. */
242 #define CONFIG_SPL_I2C_SUPPORT
243 #define CONFIG_SPL_LIBCOMMON_SUPPORT
244 #define CONFIG_SPL_LIBGENERIC_SUPPORT
245 #define CONFIG_SPL_SERIAL_SUPPORT
246 #define CONFIG_SPL_POWER_SUPPORT
247 #define CONFIG_SPL_GPIO_SUPPORT
248 #define CONFIG_SPL_BOARD_INIT
251 #define CONFIG_SPL_NAND_SUPPORT
252 #define CONFIG_SPL_NAND_BASE
253 #define CONFIG_SPL_NAND_DRIVERS
254 #define CONFIG_SPL_NAND_ECC
255 #define CONFIG_SPL_MTD_SUPPORT
256 #define CONFIG_SYS_NAND_U_BOOT_START CONFIG_SYS_TEXT_BASE
258 #endif /* !CONFIG_NOR_BOOT */
260 /* Generic Environment Variables */
262 #ifdef CONFIG_CMD_NET
264 "static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}" \
267 "rootpath=/export/rootfs\0" \
268 "netloadimage=tftp ${loadaddr} ${bootfile}\0" \
269 "netloadfdt=tftp ${fdtaddr} ${fdtfile}\0" \
270 "netargs=setenv bootargs console=${console} " \
273 "nfsroot=${serverip}:${rootpath},${nfsopts} rw " \
275 "netboot=echo Booting from network ...; " \
276 "setenv autoload no; " \
278 "run netloadimage; " \
281 "bootz ${loadaddr} - ${fdtaddr}\0"
286 #include <config_distro_defaults.h>
288 #endif /* __CONFIG_TI_ARMV7_COMMON_H__ */