u-boot/board/imgtec/boston/dt.c
Paul Burton d2b12a5767 boston: Setup memory ranges in FDT provided to Linux
The boston memory map isn't suited to the simple "all memory starting
from 0" approach that the MIPS arch_fixup_fdt() implementation takes.
Instead we need to indicate the first 256MiB of DDR from 0 and the rest
from 0x90000000. Implement ft_board_setup to do that.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-12 13:29:50 +02:00

27 lines
570 B
C

/*
* Copyright (C) 2016 Imagination Technologies
*
* SPDX-License-Identifier: GPL-2.0
*/
#include <common.h>
#include <fdt_support.h>
int ft_board_setup(void *blob, bd_t *bd)
{
DECLARE_GLOBAL_DATA_PTR;
u64 mem_start[2], mem_size[2];
int mem_regions;
mem_start[0] = 0;
mem_size[0] = min_t(u64, 256llu << 20, gd->ram_size);
mem_regions = 1;
if (gd->ram_size > mem_size[0]) {
mem_start[1] = 0x80000000 + mem_size[0];
mem_size[1] = gd->ram_size - mem_size[0];
mem_regions++;
}
return fdt_fixup_memory_banks(blob, mem_start, mem_size, mem_regions);
}