1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * Common part of configuration settings for the AT91 SAMA5 board.
5 * Copyright (C) 2015 Atmel Corporation
6 * Josh Wu <josh.wu@atmel.com>
9 #ifndef __AT91_SAMA5_COMMON_H
10 #define __AT91_SAMA5_COMMON_H
12 #include <linux/kconfig.h>
14 /* ARM asynchronous clock */
15 #define CONFIG_SYS_AT91_SLOW_CLOCK 32768
16 #define CONFIG_SYS_AT91_MAIN_CLOCK 12000000 /* from 12 MHz crystal */
18 #ifndef CONFIG_SPL_BUILD
19 #define CONFIG_SKIP_LOWLEVEL_INIT
22 /* general purpose I/O */
23 #if !CONFIG_IS_ENABLED(DM_GPIO)
24 #define CONFIG_AT91_GPIO
30 #define CONFIG_BOOTP_BOOTFILESIZE
34 #ifdef CONFIG_ENV_IS_IN_MMC
35 #define CONFIG_SYS_MMC_ENV_DEV 0
38 #define CONFIG_BOOTCOMMAND "if test ! -n ${dtb_name}; then " \
39 "setenv dtb_name at91-${board_name}.dtb; " \
41 "fatload mmc 0:1 0x21000000 ${dtb_name}; " \
42 "fatload mmc 0:1 0x22000000 zImage; " \
43 "bootz 0x22000000 - 0x21000000"
47 #ifdef CONFIG_NAND_BOOT
48 /* u-boot env in nand flash */
49 #define CONFIG_BOOTCOMMAND "nand read 0x21000000 0x180000 0x80000;" \
50 "nand read 0x22000000 0x200000 0x600000;" \
51 "bootz 0x22000000 - 0x21000000"
53 /* u-boot env in serial flash, by default is bus 0 and cs 0 */
54 #define CONFIG_BOOTCOMMAND "sf probe 0; " \
55 "sf read 0x21000000 0x60000 0xc000; " \
56 "sf read 0x22000000 0x6c000 0x394000; " \
57 "bootz 0x22000000 - 0x21000000"
58 #elif CONFIG_QSPI_BOOT
59 #define CONFIG_BOOTCOMMAND "sf probe 0; " \
60 "sf read 0x21000000 0x180000 0x80000; " \
61 "sf read 0x22000000 0x200000 0x600000; " \
62 "bootz 0x22000000 - 0x21000000"
67 /* Size of malloc() pool */
68 #define CONFIG_SYS_MALLOC_LEN (4 * 1024 * 1024)