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_CMDLINE_TAG
28 #define CONFIG_SETUP_MEMORY_TAGS
29 #define CONFIG_INITRD_TAG
32 * Our DDR memory always starts at 0x80000000 and U-Boot shall have
33 * relocated itself to higher in memory by the time this value is used.
34 * However, set this to a 32MB offset to allow for easier Linux kernel
35 * booting as the default is often used as the kernel load address.
37 #define CONFIG_SYS_LOAD_ADDR 0x82000000
40 * We setup defaults based on constraints from the Linux kernel, which should
41 * also be safe elsewhere. We have the default load at 32MB into DDR (for
42 * the kernel), FDT above 128MB (the maximum location for the end of the
43 * kernel), and the ramdisk 512KB above that (allowing for hopefully never
44 * seen large trees). We say all of this must be within the first 256MB
45 * as that will normally be within the kernel lowmem and thus visible via
46 * bootm_size and we only run on platforms with 256MB or more of memory.
48 #define DEFAULT_LINUX_BOOT_ENV \
49 "loadaddr=0x82000000\0" \
50 "kernel_addr_r=0x82000000\0" \
51 "fdtaddr=0x88000000\0" \
52 "fdt_addr_r=0x88000000\0" \
53 "rdaddr=0x88080000\0" \
54 "ramdisk_addr_r=0x88080000\0" \
55 "scriptaddr=0x80000000\0" \
56 "pxefile_addr_r=0x80100000\0" \
57 "bootm_size=0x10000000\0"
59 #define DEFAULT_MMC_TI_ARGS \
61 "mmcrootfstype=ext4 rootwait\0" \
62 "finduuid=part uuid mmc ${bootpart} uuid\0" \
63 "args_mmc=run finduuid;setenv bootargs console=${console} " \
65 "root=PARTUUID=${uuid} rw " \
66 "rootfstype=${mmcrootfstype}\0" \
67 "loadbootscript=load mmc ${mmcdev} ${loadaddr} boot.scr\0" \
68 "bootscript=echo Running bootscript from mmc${mmcdev} ...; " \
69 "source ${loadaddr}\0" \
70 "bootenvfile=uEnv.txt\0" \
71 "importbootenv=echo Importing environment from mmc${mmcdev} ...; " \
72 "env import -t ${loadaddr} ${filesize}\0" \
73 "loadbootenv=fatload mmc ${mmcdev} ${loadaddr} ${bootenvfile}\0" \
74 "envboot=mmc dev ${mmcdev}; " \
75 "if mmc rescan; then " \
76 "echo SD/MMC found on device ${mmcdev};" \
77 "if run loadbootscript; then " \
80 "if run loadbootenv; then " \
81 "echo Loaded env from ${bootenvfile};" \
82 "run importbootenv;" \
84 "if test -n $uenvcmd; then " \
85 "echo Running uenvcmd ...;" \
92 * DDR information. If the CONFIG_NR_DRAM_BANKS is not defined,
93 * we say (for simplicity) that we have 1 bank, always, even when
94 * we have more. We always start at 0x80000000, and we place the
95 * initial stack pointer in our SRAM. Otherwise, we can define
96 * CONFIG_NR_DRAM_BANKS before including this file.
98 #ifndef CONFIG_NR_DRAM_BANKS
99 #define CONFIG_NR_DRAM_BANKS 1
101 #define CONFIG_SYS_SDRAM_BASE 0x80000000
103 #ifndef CONFIG_SYS_INIT_SP_ADDR
104 #define CONFIG_SYS_INIT_SP_ADDR (NON_SECURE_SRAM_END - \
105 GENERATED_GBL_DATA_SIZE)
108 /* Timer information. */
109 #define CONFIG_SYS_PTV 2 /* Divisor: 2^(PTV+1) => 8 */
112 * Disable DM_* for SPL build and can be re-enabled after adding
115 #ifdef CONFIG_SPL_BUILD
121 #ifndef CONFIG_DM_I2C
122 #define CONFIG_SYS_I2C
125 * Enable CONFIG_DM_I2C_COMPAT temporarily until all the i2c client
126 * devices are adopted to DM
128 #define CONFIG_DM_I2C_COMPAT
131 /* MMC/SD IP block */
133 #define CONFIG_GENERIC_MMC
141 * The following are general good-enough settings for U-Boot. We set a
142 * large malloc pool as we generally have a lot of DDR, and we opt for
143 * function over binary size in the main portion of U-Boot as this is
144 * generally easily constrained later if needed. We enable the config
145 * options that give us information in the environment about what board
146 * we are on so we do not need to rely on the command prompt. We set a
147 * console baudrate of 115200 and use the default baud rate table.
149 #define CONFIG_SYS_MALLOC_LEN SZ_32M
150 #define CONFIG_SYS_CONSOLE_INFO_QUIET
151 #define CONFIG_BAUDRATE 115200
152 #define CONFIG_ENV_VARS_UBOOT_CONFIG /* Strongly encouraged */
153 #define CONFIG_ENV_OVERWRITE /* Overwrite ethaddr / serial# */
155 /* As stated above, the following choices are optional. */
156 #define CONFIG_SYS_LONGHELP
157 #define CONFIG_AUTO_COMPLETE
158 #define CONFIG_CMDLINE_EDITING
160 /* We set the max number of command args high to avoid HUSH bugs. */
161 #define CONFIG_SYS_MAXARGS 64
163 /* Console I/O Buffer Size */
164 #define CONFIG_SYS_CBSIZE 512
165 /* Print Buffer Size */
166 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE \
167 + sizeof(CONFIG_SYS_PROMPT) + 16)
168 /* Boot Argument Buffer Size */
169 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE
172 * When we have SPI, NOR or NAND flash we expect to be making use of
173 * mtdparts, both for ease of use in U-Boot and for passing information
174 * on to the Linux kernel.
176 #if defined(CONFIG_SPI_BOOT) || defined(CONFIG_NOR) || defined(CONFIG_NAND) || defined(CONFIG_NAND_DAVINCI)
177 #define CONFIG_MTD_DEVICE /* Required for mtdparts */
178 #define CONFIG_CMD_MTDPARTS
181 #define CONFIG_SUPPORT_RAW_INITRD
184 * Common filesystems support. When we have removable storage we
185 * enabled a number of useful commands and support.
187 #if defined(CONFIG_MMC) || defined(CONFIG_USB_STORAGE)
188 #define CONFIG_DOS_PARTITION
189 #define CONFIG_FAT_WRITE
190 #define CONFIG_PARTITION_UUIDS
191 #define CONFIG_CMD_PART
195 * Our platforms make use of SPL to initalize the hardware (primarily
196 * memory) enough for full U-Boot to be loaded. We also support Falcon
197 * Mode so that the Linux kernel can be booted directly from SPL
198 * instead, if desired. We make use of the general SPL framework found
199 * under common/spl/. Given our generally common memory map, we set a
200 * number of related defaults and sizes here.
202 #if !defined(CONFIG_NOR_BOOT) && \
203 !(defined(CONFIG_QSPI_BOOT) && defined(CONFIG_AM43XX))
204 #define CONFIG_SPL_FRAMEWORK
205 #define CONFIG_SPL_OS_BOOT
208 * Place the image at the start of the ROM defined image space (per
209 * CONFIG_SPL_TEXT_BASE and we limit our size to the ROM-defined
210 * downloaded image area minus 1KiB for scratch space. We initalize DRAM as
211 * soon as we can so that we can place stack, malloc and BSS there. We load
212 * U-Boot itself into memory at 0x80800000 for legacy reasons (to not conflict
213 * with older SPLs). We have our BSS be placed 2MiB after this, to allow for
214 * the default Linux kernel address of 0x80008000 to work with most sized
215 * kernels, in the Falcon Mode case. We have the SPL malloc pool at the end
216 * of the BSS area. We suggest that the stack be placed at 32MiB after the
217 * start of DRAM to allow room for all of the above (handled in Kconfig).
219 #ifndef CONFIG_SYS_TEXT_BASE
220 #define CONFIG_SYS_TEXT_BASE 0x80800000
222 #ifndef CONFIG_SPL_BSS_START_ADDR
223 #define CONFIG_SPL_BSS_START_ADDR 0x80a00000
224 #define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */
226 #ifndef CONFIG_SYS_SPL_MALLOC_START
227 #define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SPL_BSS_START_ADDR + \
228 CONFIG_SPL_BSS_MAX_SIZE)
229 #define CONFIG_SYS_SPL_MALLOC_SIZE SZ_8M
231 #ifndef CONFIG_SPL_MAX_SIZE
232 #define CONFIG_SPL_MAX_SIZE (SRAM_SCRATCH_SPACE_ADDR - \
233 CONFIG_SPL_TEXT_BASE)
237 /* RAW SD card / eMMC locations. */
238 #define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR 0x300 /* address 0x60000 */
239 #define CONFIG_SYS_U_BOOT_MAX_SIZE_SECTORS 0x200 /* 256 KB */
241 /* FAT sd card locations. */
242 #define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION 1
243 #define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img"
245 #ifdef CONFIG_SPL_OS_BOOT
247 #define CONFIG_SPL_FS_LOAD_KERNEL_NAME "uImage"
248 #define CONFIG_SPL_FS_LOAD_ARGS_NAME "args"
250 /* RAW SD card / eMMC */
251 #define CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR 0x900 /* address 0x120000 */
252 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR 0x80 /* address 0x10000 */
253 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS 0x80 /* 64KiB */
255 /* spl export command */
256 #define CONFIG_CMD_SPL
259 #define CONFIG_SYS_THUMB_BUILD
261 /* General parts of the framework, required. */
262 #define CONFIG_SPL_BOARD_INIT
265 #define CONFIG_SPL_NAND_BASE
266 #define CONFIG_SPL_NAND_DRIVERS
267 #define CONFIG_SPL_NAND_ECC
268 #define CONFIG_SYS_NAND_U_BOOT_START CONFIG_SYS_TEXT_BASE
270 #endif /* !CONFIG_NOR_BOOT */
272 /* Generic Environment Variables */
274 #ifdef CONFIG_CMD_NET
276 "static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}" \
279 "rootpath=/export/rootfs\0" \
280 "netloadimage=tftp ${loadaddr} ${bootfile}\0" \
281 "netloadfdt=tftp ${fdtaddr} ${fdtfile}\0" \
282 "netargs=setenv bootargs console=${console} " \
285 "nfsroot=${serverip}:${rootpath},${nfsopts} rw " \
287 "netboot=echo Booting from network ...; " \
288 "setenv autoload no; " \
290 "run netloadimage; " \
293 "bootz ${loadaddr} - ${fdtaddr}\0"
298 #include <config_distro_defaults.h>
300 #endif /* __CONFIG_TI_ARMV7_COMMON_H__ */