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1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3  * Common part of configuration settings for the AT91 SAMA5 board.
4  *
5  * Copyright (C) 2015 Atmel Corporation
6  *		      Josh Wu <josh.wu@atmel.com>
7  */
8 
9 #ifndef __AT91_SAMA5_COMMON_H
10 #define __AT91_SAMA5_COMMON_H
11 
12 /* ARM asynchronous clock */
13 #define CONFIG_SYS_AT91_SLOW_CLOCK      32768
14 #define CONFIG_SYS_AT91_MAIN_CLOCK      12000000 /* from 12 MHz crystal */
15 
16 #define CONFIG_ARCH_CPU_INIT
17 
18 #ifndef CONFIG_SPL_BUILD
19 #define CONFIG_SKIP_LOWLEVEL_INIT
20 #endif
21 
22 /* general purpose I/O */
23 #ifndef CONFIG_DM_GPIO
24 #define CONFIG_AT91_GPIO
25 #endif
26 
27 
28 /*
29  * BOOTP options
30  */
31 #define CONFIG_BOOTP_BOOTFILESIZE
32 
33 /*
34  * Command line configuration.
35  */
36 
37 #ifdef CONFIG_SD_BOOT
38 
39 #ifdef CONFIG_ENV_IS_IN_MMC
40 /* Use raw reserved sectors to save environment */
41 #define CONFIG_ENV_OFFSET		0x2000
42 #define CONFIG_ENV_SIZE			0x1000
43 #define CONFIG_SYS_MMC_ENV_DEV		0
44 #else
45 /* u-boot env in sd/mmc card */
46 #define CONFIG_ENV_SIZE		0x4000
47 #endif
48 
49 #define CONFIG_BOOTCOMMAND	"if test ! -n ${dtb_name}; then "	\
50 				    "setenv dtb_name at91-${board_name}.dtb; " \
51 				"fi; "					\
52 				"fatload mmc 0:1 0x21000000 ${dtb_name}; " \
53 				"fatload mmc 0:1 0x22000000 zImage; "	\
54 				"bootz 0x22000000 - 0x21000000"
55 
56 #else
57 
58 #ifdef CONFIG_NAND_BOOT
59 /* u-boot env in nand flash */
60 #define CONFIG_ENV_OFFSET		0x140000
61 #define CONFIG_ENV_OFFSET_REDUND	0x100000
62 #define CONFIG_ENV_SIZE			0x20000
63 #define CONFIG_BOOTCOMMAND		"nand read 0x21000000 0x180000 0x80000;"	\
64 					"nand read 0x22000000 0x200000 0x600000;"	\
65 					"bootz 0x22000000 - 0x21000000"
66 #elif CONFIG_SPI_BOOT
67 /* u-boot env in serial flash, by default is bus 0 and cs 0 */
68 #define CONFIG_ENV_OFFSET		0x6000
69 #define CONFIG_ENV_SIZE			0x2000
70 #define CONFIG_ENV_SECT_SIZE		0x1000
71 #define CONFIG_BOOTCOMMAND		"sf probe 0; "				\
72 					"sf read 0x21000000 0x60000 0xc000; "	\
73 					"sf read 0x22000000 0x6c000 0x394000; "	\
74 					"bootz 0x22000000 - 0x21000000"
75 #endif
76 
77 #endif
78 
79 /* Size of malloc() pool */
80 #define CONFIG_SYS_MALLOC_LEN		(4 * 1024 * 1024)
81 
82 #endif
83