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 * Default to a quick boot delay.
72 #define CONFIG_BOOTDELAY 1
75 * DDR information. If the CONFIG_NR_DRAM_BANKS is not defined,
76 * we say (for simplicity) that we have 1 bank, always, even when
77 * we have more. We always start at 0x80000000, and we place the
78 * initial stack pointer in our SRAM. Otherwise, we can define
79 * CONFIG_NR_DRAM_BANKS before including this file.
81 #ifndef CONFIG_NR_DRAM_BANKS
82 #define CONFIG_NR_DRAM_BANKS 1
84 #define CONFIG_SYS_SDRAM_BASE 0x80000000
86 #ifndef CONFIG_SYS_INIT_SP_ADDR
87 #define CONFIG_SYS_INIT_SP_ADDR (NON_SECURE_SRAM_END - \
88 GENERATED_GBL_DATA_SIZE)
91 /* Timer information. */
92 #define CONFIG_SYS_PTV 2 /* Divisor: 2^(PTV+1) => 8 */
96 #define CONFIG_CMD_I2C
97 #define CONFIG_SYS_I2C
101 #define CONFIG_GENERIC_MMC
102 #define CONFIG_CMD_MMC
106 #define CONFIG_CMD_SPI
109 #define CONFIG_CMD_GPIO
112 * The following are general good-enough settings for U-Boot. We set a
113 * large malloc pool as we generally have a lot of DDR, and we opt for
114 * function over binary size in the main portion of U-Boot as this is
115 * generally easily constrained later if needed. We enable the config
116 * options that give us information in the environment about what board
117 * we are on so we do not need to rely on the command prompt. We set a
118 * console baudrate of 115200 and use the default baud rate table.
120 #ifdef CONFIG_DFU_MMC
121 #define CONFIG_SYS_MALLOC_LEN ((16 << 20) + CONFIG_SYS_DFU_DATA_BUF_SIZE)
123 #define CONFIG_SYS_MALLOC_LEN (16 << 20)
125 #define CONFIG_SYS_HUSH_PARSER
126 #define CONFIG_SYS_CONSOLE_INFO_QUIET
127 #define CONFIG_BAUDRATE 115200
128 #define CONFIG_ENV_VARS_UBOOT_CONFIG /* Strongly encouraged */
129 #define CONFIG_ENV_OVERWRITE /* Overwrite ethaddr / serial# */
131 /* As stated above, the following choices are optional. */
132 #define CONFIG_SYS_LONGHELP
133 #define CONFIG_AUTO_COMPLETE
134 #define CONFIG_CMDLINE_EDITING
135 #define CONFIG_VERSION_VARIABLE
137 /* We set the max number of command args high to avoid HUSH bugs. */
138 #define CONFIG_SYS_MAXARGS 64
140 /* Console I/O Buffer Size */
141 #define CONFIG_SYS_CBSIZE 512
142 /* Print Buffer Size */
143 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE \
144 + sizeof(CONFIG_SYS_PROMPT) + 16)
145 /* Boot Argument Buffer Size */
146 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE
149 * When we have SPI, NOR or NAND flash we expect to be making use of
150 * mtdparts, both for ease of use in U-Boot and for passing information
151 * on to the Linux kernel.
153 #if defined(CONFIG_SPI_BOOT) || defined(CONFIG_NOR) || defined(CONFIG_NAND) || defined(CONFIG_NAND_DAVINCI)
154 #define CONFIG_MTD_DEVICE /* Required for mtdparts */
155 #define CONFIG_CMD_MTDPARTS
158 #define CONFIG_CMD_ASKENV
159 #define CONFIG_CMD_BOOTZ
160 #define CONFIG_SUPPORT_RAW_INITRD
163 * Common filesystems support. When we have removable storage we
164 * enabled a number of useful commands and support.
166 #if defined(CONFIG_MMC) || defined(CONFIG_USB_STORAGE)
167 #define CONFIG_DOS_PARTITION
168 #define CONFIG_CMD_FAT
169 #define CONFIG_FAT_WRITE
170 #define CONFIG_CMD_EXT2
171 #define CONFIG_CMD_EXT4
172 #define CONFIG_CMD_FS_GENERIC
173 #define CONFIG_PARTITION_UUIDS
174 #define CONFIG_CMD_PART
178 * Our platforms make use of SPL to initalize the hardware (primarily
179 * memory) enough for full U-Boot to be loaded. We also support Falcon
180 * Mode so that the Linux kernel can be booted directly from SPL
181 * instead, if desired. We make use of the general SPL framework found
182 * under common/spl/. Given our generally common memory map, we set a
183 * number of related defaults and sizes here.
185 #if !defined(CONFIG_NOR_BOOT) && \
186 !(defined(CONFIG_QSPI_BOOT) && defined(CONFIG_AM43XX))
187 #define CONFIG_SPL_FRAMEWORK
188 #define CONFIG_SPL_OS_BOOT
191 * Place the image at the start of the ROM defined image space (per
192 * CONFIG_SPL_TEXT_BASE and we limit our size to the ROM-defined
193 * downloaded image area. We initalize DRAM as soon as we can so that
194 * we can place stack, malloc and BSS there. We load U-Boot itself into
195 * memory at 0x80800000 for legacy reasons (to not conflict with older
196 * SPLs). We have our BSS be placed 2MiB after this, to allow for the
197 * default Linux kernel address of 0x80008000 to work with most sized
198 * kernels, in the Falcon Mode case. We have the SPL malloc pool at the
199 * end of the BSS area. We suggest that the stack be placed at 32MiB after
200 * the start of DRAM to allow room for all of the above (handled in Kconfig).
202 #ifndef CONFIG_SYS_TEXT_BASE
203 #define CONFIG_SYS_TEXT_BASE 0x80800000
205 #ifndef CONFIG_SPL_BSS_START_ADDR
206 #define CONFIG_SPL_BSS_START_ADDR 0x80a00000
207 #define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */
209 #ifndef CONFIG_SYS_SPL_MALLOC_START
210 #define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SPL_BSS_START_ADDR + \
211 CONFIG_SPL_BSS_MAX_SIZE)
212 #define CONFIG_SYS_SPL_MALLOC_SIZE CONFIG_SYS_MALLOC_LEN
215 /* RAW SD card / eMMC locations. */
216 #define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR 0x300 /* address 0x60000 */
217 #define CONFIG_SYS_U_BOOT_MAX_SIZE_SECTORS 0x200 /* 256 KB */
219 /* FAT sd card locations. */
220 #define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION 1
221 #define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img"
223 #ifdef CONFIG_SPL_OS_BOOT
225 #define CONFIG_SPL_FS_LOAD_KERNEL_NAME "uImage"
226 #define CONFIG_SPL_FS_LOAD_ARGS_NAME "args"
228 /* RAW SD card / eMMC */
229 #define CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR 0x900 /* address 0x120000 */
230 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR 0x80 /* address 0x10000 */
231 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS 0x80 /* 64KiB */
233 /* spl export command */
234 #define CONFIG_CMD_SPL
238 #define CONFIG_SPL_LIBDISK_SUPPORT
239 #define CONFIG_SPL_MMC_SUPPORT
240 #define CONFIG_SPL_FAT_SUPPORT
241 #define CONFIG_SPL_EXT_SUPPORT
244 #define CONFIG_SYS_THUMB_BUILD
246 /* General parts of the framework, required. */
247 #define CONFIG_SPL_I2C_SUPPORT
248 #define CONFIG_SPL_LIBCOMMON_SUPPORT
249 #define CONFIG_SPL_LIBGENERIC_SUPPORT
250 #define CONFIG_SPL_SERIAL_SUPPORT
251 #define CONFIG_SPL_POWER_SUPPORT
252 #define CONFIG_SPL_GPIO_SUPPORT
253 #define CONFIG_SPL_BOARD_INIT
256 #define CONFIG_SPL_NAND_SUPPORT
257 #define CONFIG_SPL_NAND_BASE
258 #define CONFIG_SPL_NAND_DRIVERS
259 #define CONFIG_SPL_NAND_ECC
260 #define CONFIG_SPL_MTD_SUPPORT
261 #define CONFIG_SYS_NAND_U_BOOT_START CONFIG_SYS_TEXT_BASE
263 #endif /* !CONFIG_NOR_BOOT */
265 /* Generic Environment Variables */
267 #ifdef CONFIG_CMD_NET
269 "static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}" \
272 "rootpath=/export/rootfs\0" \
273 "netloadimage=tftp ${loadaddr} ${bootfile}\0" \
274 "netloadfdt=tftp ${fdtaddr} ${fdtfile}\0" \
275 "netargs=setenv bootargs console=${console} " \
278 "nfsroot=${serverip}:${rootpath},${nfsopts} rw " \
280 "netboot=echo Booting from network ...; " \
281 "setenv autoload no; " \
283 "run netloadimage; " \
286 "bootz ${loadaddr} - ${fdtaddr}\0"
291 #endif /* __CONFIG_TI_ARMV7_COMMON_H__ */