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- // SPDX-License-Identifier: GPL-2.0
- /*
- * Copyright (C) 2016 Imagination Technologies
- */
- #include <common.h>
- #include <init.h>
- #include <asm/io.h>
- #include "boston-regs.h"
- DECLARE_GLOBAL_DATA_PTR;
- int dram_init(void)
- {
- u32 ddrconf0 = __raw_readl((uint32_t *)BOSTON_PLAT_DDRCONF0);
- gd->ram_size = (phys_size_t)(ddrconf0 & BOSTON_PLAT_DDRCONF0_SIZE) <<
- 30;
- return 0;
- }
- ulong board_get_usable_ram_top(ulong total_size)
- {
- DECLARE_GLOBAL_DATA_PTR;
- if (gd->ram_top < CONFIG_SYS_SDRAM_BASE) {
- /* 2GB wrapped around to 0 */
- return CKSEG0ADDR(256 << 20);
- }
- return min_t(unsigned long, gd->ram_top, CKSEG0ADDR(256 << 20));
- }
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