1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * (C) Copyright 2012-2016 Stephen Warren 4 */ 5 6 #ifndef __CONFIG_H 7 #define __CONFIG_H 8 9 #include <linux/sizes.h> 10 #include <asm/arch/timer.h> 11 12 #ifndef __ASSEMBLY__ 13 #include <asm/arch/base.h> 14 #endif 15 16 /* Use SoC timer for AArch32, but architected timer for AArch64 */ 17 #ifndef CONFIG_ARM64 18 #define CFG_SYS_TIMER_RATE 1000000 19 #define CFG_SYS_TIMER_COUNTER \ 20 (&((struct bcm2835_timer_regs *)BCM2835_TIMER_PHYSADDR)->clo) 21 #endif 22 23 /* Memory layout */ 24 #define CFG_SYS_SDRAM_BASE 0x00000000 25 #define CFG_SYS_UBOOT_BASE CONFIG_TEXT_BASE 26 /* 27 * The board really has 256M. However, the VC (VideoCore co-processor) shares 28 * the RAM, and uses a configurable portion at the top. We tell U-Boot that a 29 * smaller amount of RAM is present in order to avoid stomping on the area 30 * the VC uses. 31 */ 32 #define CFG_SYS_SDRAM_SIZE SZ_128M 33 34 #endif 35