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" \
60 #define DEFAULT_MMC_TI_ARGS \
62 "mmcrootfstype=ext4 rootwait\0" \
63 "finduuid=part uuid mmc ${bootpart} uuid\0" \
64 "args_mmc=run finduuid;setenv bootargs console=${console} " \
66 "root=PARTUUID=${uuid} rw " \
67 "rootfstype=${mmcrootfstype}\0" \
68 "loadbootscript=load mmc ${mmcdev} ${loadaddr} boot.scr\0" \
69 "bootscript=echo Running bootscript from mmc${mmcdev} ...; " \
70 "source ${loadaddr}\0" \
71 "bootenvfile=uEnv.txt\0" \
72 "importbootenv=echo Importing environment from mmc${mmcdev} ...; " \
73 "env import -t ${loadaddr} ${filesize}\0" \
74 "loadbootenv=fatload mmc ${mmcdev} ${loadaddr} ${bootenvfile}\0" \
75 "loadimage=load ${devtype} ${bootpart} ${loadaddr} ${bootdir}/${bootfile}\0" \
76 "loadfdt=load ${devtype} ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile}\0" \
77 "envboot=mmc dev ${mmcdev}; " \
78 "if mmc rescan; then " \
79 "echo SD/MMC found on device ${mmcdev};" \
80 "if run loadbootscript; then " \
83 "if run loadbootenv; then " \
84 "echo Loaded env from ${bootenvfile};" \
85 "run importbootenv;" \
87 "if test -n $uenvcmd; then " \
88 "echo Running uenvcmd ...;" \
93 "mmcloados=run args_mmc; " \
94 "if test ${boot_fdt} = yes || test ${boot_fdt} = try; then " \
95 "if run loadfdt; then " \
96 "bootz ${loadaddr} - ${fdtaddr}; " \
98 "if test ${boot_fdt} = try; then " \
101 "echo WARN: Cannot load the DT; " \
107 "mmcboot=mmc dev ${mmcdev}; " \
108 "setenv devnum ${mmcdev}; " \
109 "setenv devtype mmc; " \
110 "if mmc rescan; then " \
111 "echo SD/MMC found on device ${mmcdev};" \
112 "if run loadimage; then " \
113 "if test ${boot_fit} -eq 1; then " \
121 #define DEFAULT_FIT_TI_ARGS \
123 "fit_loadaddr=0x88000000\0" \
124 "fit_bootfile=fitImage.itb\0" \
125 "update_to_fit=setenv loadaddr ${fit_loadaddr}; setenv bootfile ${fit_bootfile}\0" \
126 "args_fit=setenv bootargs console=${console} \0" \
127 "loadfit=run args_fit; bootm ${loadaddr}#${fdtfile};\0" \
130 * DDR information. If the CONFIG_NR_DRAM_BANKS is not defined,
131 * we say (for simplicity) that we have 1 bank, always, even when
132 * we have more. We always start at 0x80000000, and we place the
133 * initial stack pointer in our SRAM. Otherwise, we can define
134 * CONFIG_NR_DRAM_BANKS before including this file.
136 #ifndef CONFIG_NR_DRAM_BANKS
137 #define CONFIG_NR_DRAM_BANKS 1
139 #define CONFIG_SYS_SDRAM_BASE 0x80000000
141 #ifndef CONFIG_SYS_INIT_SP_ADDR
142 #define CONFIG_SYS_INIT_SP_ADDR (NON_SECURE_SRAM_END - \
143 GENERATED_GBL_DATA_SIZE)
146 /* Timer information. */
147 #define CONFIG_SYS_PTV 2 /* Divisor: 2^(PTV+1) => 8 */
150 * Disable DM_* for SPL build and can be re-enabled after adding
153 #ifdef CONFIG_SPL_BUILD
159 #ifndef CONFIG_DM_I2C
160 #define CONFIG_SYS_I2C
163 * Enable CONFIG_DM_I2C_COMPAT temporarily until all the i2c client
164 * devices are adopted to DM
166 #define CONFIG_DM_I2C_COMPAT
175 * The following are general good-enough settings for U-Boot. We set a
176 * large malloc pool as we generally have a lot of DDR, and we opt for
177 * function over binary size in the main portion of U-Boot as this is
178 * generally easily constrained later if needed. We enable the config
179 * options that give us information in the environment about what board
180 * we are on so we do not need to rely on the command prompt. We set a
181 * console baudrate of 115200 and use the default baud rate table.
183 #define CONFIG_SYS_MALLOC_LEN SZ_32M
184 #define CONFIG_BAUDRATE 115200
185 #define CONFIG_ENV_VARS_UBOOT_CONFIG /* Strongly encouraged */
186 #define CONFIG_ENV_OVERWRITE /* Overwrite ethaddr / serial# */
188 /* As stated above, the following choices are optional. */
189 #define CONFIG_SYS_LONGHELP
190 #define CONFIG_AUTO_COMPLETE
191 #define CONFIG_CMDLINE_EDITING
193 /* We set the max number of command args high to avoid HUSH bugs. */
194 #define CONFIG_SYS_MAXARGS 64
196 /* Console I/O Buffer Size */
197 #define CONFIG_SYS_CBSIZE 1024
198 /* Print Buffer Size */
199 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE \
200 + sizeof(CONFIG_SYS_PROMPT) + 16)
201 /* Boot Argument Buffer Size */
202 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE
205 * When we have SPI, NOR or NAND flash we expect to be making use of
206 * mtdparts, both for ease of use in U-Boot and for passing information
207 * on to the Linux kernel.
209 #if defined(CONFIG_SPI_BOOT) || defined(CONFIG_NOR) || defined(CONFIG_NAND) || defined(CONFIG_NAND_DAVINCI)
210 #define CONFIG_MTD_DEVICE /* Required for mtdparts */
211 #define CONFIG_CMD_MTDPARTS
214 #define CONFIG_SUPPORT_RAW_INITRD
217 * Common filesystems support. When we have removable storage we
218 * enabled a number of useful commands and support.
220 #if defined(CONFIG_MMC) || defined(CONFIG_USB_STORAGE)
221 #define CONFIG_FAT_WRITE
225 * Our platforms make use of SPL to initalize the hardware (primarily
226 * memory) enough for full U-Boot to be loaded. We make use of the general
227 * SPL framework found under common/spl/. Given our generally common memory
228 * map, we set a number of related defaults and sizes here.
230 #if !defined(CONFIG_NOR_BOOT) && \
231 !(defined(CONFIG_QSPI_BOOT) && defined(CONFIG_AM43XX))
232 #define CONFIG_SPL_FRAMEWORK
235 * We also support Falcon Mode so that the Linux kernel can be booted
236 * directly from SPL. This is not currently available on HS devices.
240 * Place the image at the start of the ROM defined image space (per
241 * CONFIG_SPL_TEXT_BASE and we limit our size to the ROM-defined
242 * downloaded image area minus 1KiB for scratch space. We initalize DRAM as
243 * soon as we can so that we can place stack, malloc and BSS there. We load
244 * U-Boot itself into memory at 0x80800000 for legacy reasons (to not conflict
245 * with older SPLs). We have our BSS be placed 2MiB after this, to allow for
246 * the default Linux kernel address of 0x80008000 to work with most sized
247 * kernels, in the Falcon Mode case. We have the SPL malloc pool at the end
248 * of the BSS area. We suggest that the stack be placed at 32MiB after the
249 * start of DRAM to allow room for all of the above (handled in Kconfig).
251 #ifndef CONFIG_SYS_TEXT_BASE
252 #define CONFIG_SYS_TEXT_BASE 0x80800000
254 #ifndef CONFIG_SPL_BSS_START_ADDR
255 #define CONFIG_SPL_BSS_START_ADDR 0x80a00000
256 #define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */
258 #ifndef CONFIG_SYS_SPL_MALLOC_START
259 #define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SPL_BSS_START_ADDR + \
260 CONFIG_SPL_BSS_MAX_SIZE)
261 #define CONFIG_SYS_SPL_MALLOC_SIZE SZ_8M
263 #ifndef CONFIG_SPL_MAX_SIZE
264 #define CONFIG_SPL_MAX_SIZE (SRAM_SCRATCH_SPACE_ADDR - \
265 CONFIG_SPL_TEXT_BASE)
269 /* FAT sd card locations. */
270 #define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION 1
271 #define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img"
273 #ifdef CONFIG_SPL_OS_BOOT
275 #define CONFIG_SPL_FS_LOAD_KERNEL_NAME "uImage"
276 #define CONFIG_SPL_FS_LOAD_ARGS_NAME "args"
278 /* RAW SD card / eMMC */
279 #define CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR 0x900 /* address 0x120000 */
280 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR 0x80 /* address 0x10000 */
281 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS 0x80 /* 64KiB */
283 /* spl export command */
284 #define CONFIG_CMD_SPL
287 #define CONFIG_SYS_THUMB_BUILD
289 /* General parts of the framework, required. */
290 #define CONFIG_SPL_BOARD_INIT
293 #define CONFIG_SPL_NAND_BASE
294 #define CONFIG_SPL_NAND_DRIVERS
295 #define CONFIG_SPL_NAND_ECC
296 #define CONFIG_SYS_NAND_U_BOOT_START CONFIG_SYS_TEXT_BASE
298 #endif /* !CONFIG_NOR_BOOT */
300 /* Generic Environment Variables */
302 #ifdef CONFIG_CMD_NET
304 "static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}" \
307 "rootpath=/export/rootfs\0" \
308 "netloadimage=tftp ${loadaddr} ${bootfile}\0" \
309 "netloadfdt=tftp ${fdtaddr} ${fdtfile}\0" \
310 "netargs=setenv bootargs console=${console} " \
313 "nfsroot=${serverip}:${rootpath},${nfsopts} rw " \
315 "netboot=echo Booting from network ...; " \
316 "setenv autoload no; " \
318 "run netloadimage; " \
321 "bootz ${loadaddr} - ${fdtaddr}\0"
326 #include <config_distro_defaults.h>
328 #endif /* __CONFIG_TI_ARMV7_COMMON_H__ */