1 /*
2  * ti_armv7_common.h
3  *
4  * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
5  *
6  * SPDX-License-Identifier:	GPL-2.0+
7  *
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
14  * standards.
15  */
16 
17 #ifndef __CONFIG_TI_ARMV7_COMMON_H__
18 #define __CONFIG_TI_ARMV7_COMMON_H__
19 
20 /* Common define for many platforms. */
21 #define CONFIG_OMAP
22 #define CONFIG_OMAP_COMMON
23 #define CONFIG_SYS_GENERIC_BOARD
24 
25 /*
26  * We typically do not contain NOR flash.  In the cases where we do, we
27  * undefine this later.
28  */
29 #define CONFIG_SYS_NO_FLASH
30 
31 /* Support both device trees and ATAGs. */
32 #define CONFIG_OF_LIBFDT
33 #define CONFIG_CMDLINE_TAG
34 #define CONFIG_SETUP_MEMORY_TAGS
35 #define CONFIG_INITRD_TAG
36 
37 /*
38  * Our DDR memory always starts at 0x80000000 and U-Boot shall have
39  * relocated itself to higher in memory by the time this value is used.
40  * However, set this to a 32MB offset to allow for easier Linux kernel
41  * booting as the default is often used as the kernel load address.
42  */
43 #define CONFIG_SYS_LOAD_ADDR		0x82000000
44 
45 /*
46  * We setup defaults based on constraints from the Linux kernel, which should
47  * also be safe elsewhere.  We have the default load at 32MB into DDR (for
48  * the kernel), FDT above 128MB (the maximum location for the end of the
49  * kernel), and the ramdisk 512KB above that (allowing for hopefully never
50  * seen large trees).  We say all of this must be within the first 256MB
51  * as that will normally be within the kernel lowmem and thus visible via
52  * bootm_size and we only run on platforms with 256MB or more of memory.
53  */
54 #define DEFAULT_LINUX_BOOT_ENV \
55 	"loadaddr=0x82000000\0" \
56 	"kernel_addr_r=0x82000000\0" \
57 	"fdtaddr=0x88000000\0" \
58 	"fdt_addr_r=0x88000000\0" \
59 	"rdaddr=0x88080000\0" \
60 	"ramdisk_addr_r=0x88080000\0" \
61 	"bootm_size=0x10000000\0"
62 
63 /*
64  * Default to a quick boot delay.
65  */
66 #define CONFIG_BOOTDELAY		1
67 
68 /*
69  * DDR information.  If the CONFIG_NR_DRAM_BANKS is not defined,
70  * we say (for simplicity) that we have 1 bank, always, even when
71  * we have more.  We always start at 0x80000000, and we place the
72  * initial stack pointer in our SRAM. Otherwise, we can define
73  * CONFIG_NR_DRAM_BANKS before including this file.
74  */
75 #ifndef CONFIG_NR_DRAM_BANKS
76 #define CONFIG_NR_DRAM_BANKS		1
77 #endif
78 #define CONFIG_SYS_SDRAM_BASE		0x80000000
79 #define CONFIG_SYS_INIT_SP_ADDR         (NON_SECURE_SRAM_END - \
80 						GENERATED_GBL_DATA_SIZE)
81 
82 /* Timer information. */
83 #define CONFIG_SYS_PTV			2	/* Divisor: 2^(PTV+1) => 8 */
84 
85 /* I2C IP block */
86 #define CONFIG_I2C
87 #define CONFIG_CMD_I2C
88 #define CONFIG_SYS_I2C
89 #define CONFIG_SYS_OMAP24_I2C_SPEED	100000
90 #define CONFIG_SYS_OMAP24_I2C_SLAVE	1
91 #define CONFIG_SYS_I2C_OMAP24XX
92 
93 /* MMC/SD IP block */
94 #define CONFIG_MMC
95 #define CONFIG_GENERIC_MMC
96 #define CONFIG_OMAP_HSMMC
97 #define CONFIG_CMD_MMC
98 
99 /* McSPI IP block */
100 #define CONFIG_SPI
101 #define CONFIG_OMAP3_SPI
102 #define CONFIG_CMD_SPI
103 
104 /* GPIO block */
105 #define CONFIG_OMAP_GPIO
106 #define CONFIG_CMD_GPIO
107 
108 /*
109  * GPMC NAND block.  We support 1 device and the physical address to
110  * access CS0 at is 0x8000000.
111  */
112 #ifdef CONFIG_NAND
113 #define CONFIG_NAND_OMAP_GPMC
114 #ifndef CONFIG_SYS_NAND_BASE
115 #define CONFIG_SYS_NAND_BASE		0x8000000
116 #endif
117 #define CONFIG_SYS_MAX_NAND_DEVICE	1
118 #define CONFIG_CMD_NAND
119 #endif
120 
121 /*
122  * The following are general good-enough settings for U-Boot.  We set a
123  * large malloc pool as we generally have a lot of DDR, and we opt for
124  * function over binary size in the main portion of U-Boot as this is
125  * generally easily constrained later if needed.  We enable the config
126  * options that give us information in the environment about what board
127  * we are on so we do not need to rely on the command prompt.  We set a
128  * console baudrate of 115200 and use the default baud rate table.
129  */
130 #define CONFIG_SYS_MALLOC_LEN		(16 << 20)
131 #define CONFIG_SYS_HUSH_PARSER
132 #define CONFIG_SYS_PROMPT		"U-Boot# "
133 #define CONFIG_SYS_CONSOLE_INFO_QUIET
134 #define CONFIG_BAUDRATE			115200
135 #define CONFIG_ENV_VARS_UBOOT_CONFIG	/* Strongly encouraged */
136 #define CONFIG_ENV_OVERWRITE		/* Overwrite ethaddr / serial# */
137 
138 /* As stated above, the following choices are optional. */
139 #define CONFIG_SYS_LONGHELP
140 #define CONFIG_AUTO_COMPLETE
141 #define CONFIG_CMDLINE_EDITING
142 #define CONFIG_VERSION_VARIABLE
143 
144 /* We set the max number of command args high to avoid HUSH bugs. */
145 #define CONFIG_SYS_MAXARGS		64
146 
147 /* Console I/O Buffer Size */
148 #define CONFIG_SYS_CBSIZE		512
149 /* Print Buffer Size */
150 #define CONFIG_SYS_PBSIZE		(CONFIG_SYS_CBSIZE \
151 					+ sizeof(CONFIG_SYS_PROMPT) + 16)
152 /* Boot Argument Buffer Size */
153 #define CONFIG_SYS_BARGSIZE		CONFIG_SYS_CBSIZE
154 
155 /*
156  * When we have SPI, NOR or NAND flash we expect to be making use of
157  * mtdparts, both for ease of use in U-Boot and for passing information
158  * on to the Linux kernel.
159  */
160 #if defined(CONFIG_SPI_BOOT) || defined(CONFIG_NOR) || defined(CONFIG_NAND)
161 #define CONFIG_MTD_DEVICE		/* Required for mtdparts */
162 #define CONFIG_CMD_MTDPARTS
163 #endif
164 
165 /*
166  * For commands to use, we take the default list and add a few other
167  * useful commands.  Note that we must have set CONFIG_SYS_NO_FLASH
168  * prior to this include, in order to skip a few commands.  When we do
169  * have flash, if we expect these commands they must be enabled in that
170  * config.  If desired, a specific list of desired commands can be used
171  * instead.
172  */
173 #include <config_cmd_default.h>
174 #define CONFIG_CMD_ASKENV
175 #define CONFIG_CMD_ECHO
176 #define CONFIG_CMD_BOOTZ
177 #define CONFIG_SUPPORT_RAW_INITRD
178 
179 /*
180  * Common filesystems support.  When we have removable storage we
181  * enabled a number of useful commands and support.
182  */
183 #if defined(CONFIG_MMC) || defined(CONFIG_USB_STORAGE)
184 #define CONFIG_DOS_PARTITION
185 #define CONFIG_CMD_FAT
186 #define CONFIG_FAT_WRITE
187 #define CONFIG_CMD_EXT2
188 #define CONFIG_CMD_EXT4
189 #define CONFIG_CMD_FS_GENERIC
190 #define CONFIG_PARTITION_UUIDS
191 #define CONFIG_CMD_PART
192 #endif
193 
194 /*
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.
201  */
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
206 
207 /*
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.  We initalize DRAM as soon as we can so that
211  * we can place stack, malloc and BSS there.  We load U-Boot itself into
212  * memory at 0x80800000 for legacy reasons (to not conflict with older
213  * SPLs).  We have our BSS be placed 2MiB after this, to allow for the
214  * 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
216  * end of the BSS area.  We place our stack at 32MiB after the start of
217  * DRAM to allow room for all of the above.
218  */
219 #define CONFIG_SPL_STACK		(CONFIG_SYS_SDRAM_BASE + (32 << 20))
220 #ifndef CONFIG_SYS_TEXT_BASE
221 #define CONFIG_SYS_TEXT_BASE		0x80800000
222 #endif
223 #ifndef CONFIG_SPL_BSS_START_ADDR
224 #define CONFIG_SPL_BSS_START_ADDR	0x80a00000
225 #define CONFIG_SPL_BSS_MAX_SIZE		0x80000		/* 512 KB */
226 #endif
227 #ifndef CONFIG_SYS_SPL_MALLOC_START
228 #define CONFIG_SYS_SPL_MALLOC_START	(CONFIG_SPL_BSS_START_ADDR + \
229 					 CONFIG_SPL_BSS_MAX_SIZE)
230 #define CONFIG_SYS_SPL_MALLOC_SIZE	CONFIG_SYS_MALLOC_LEN
231 #endif
232 
233 /* RAW SD card / eMMC locations. */
234 #define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR	0x300 /* address 0x60000 */
235 #define CONFIG_SYS_U_BOOT_MAX_SIZE_SECTORS	0x200 /* 256 KB */
236 
237 /* FAT sd card locations. */
238 #define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION	1
239 #define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME	"u-boot.img"
240 
241 #ifdef CONFIG_SPL_OS_BOOT
242 /* FAT */
243 #define CONFIG_SPL_FS_LOAD_KERNEL_NAME		"uImage"
244 #define CONFIG_SPL_FS_LOAD_ARGS_NAME		"args"
245 
246 /* RAW SD card / eMMC */
247 #define CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR	0x900	/* address 0x120000 */
248 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR	0x80	/* address 0x10000 */
249 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS	0x80	/* 64KiB */
250 
251 /* spl export command */
252 #define CONFIG_CMD_SPL
253 #endif
254 
255 #ifdef CONFIG_MMC
256 #define CONFIG_SPL_LIBDISK_SUPPORT
257 #define CONFIG_SPL_MMC_SUPPORT
258 #define CONFIG_SPL_FAT_SUPPORT
259 #endif
260 
261 /* General parts of the framework, required. */
262 #define CONFIG_SPL_I2C_SUPPORT
263 #define CONFIG_SPL_LIBCOMMON_SUPPORT
264 #define CONFIG_SPL_LIBGENERIC_SUPPORT
265 #define CONFIG_SPL_SERIAL_SUPPORT
266 #define CONFIG_SPL_GPIO_SUPPORT
267 #define CONFIG_SPL_BOARD_INIT
268 
269 #ifdef CONFIG_NAND
270 #define CONFIG_SPL_NAND_SUPPORT
271 #define CONFIG_SPL_NAND_BASE
272 #define CONFIG_SPL_NAND_DRIVERS
273 #define CONFIG_SPL_NAND_ECC
274 #define CONFIG_SPL_MTD_SUPPORT
275 #define CONFIG_SYS_NAND_U_BOOT_START	CONFIG_SYS_TEXT_BASE
276 #endif
277 #endif /* !CONFIG_NOR_BOOT */
278 
279 #endif	/* __CONFIG_TI_ARMV7_COMMON_H__ */
280