mirror of
https://xff.cz/git/u-boot/
synced 2025-10-31 02:15:45 +01:00
bb04d2ec4d
Propagate the "mtdparts" environment variable to the DT passed in to OS. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
65 lines
1.4 KiB
C
65 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2016-2018 Socionext Inc.
|
|
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <fdt_support.h>
|
|
#include <fdtdec.h>
|
|
#include <jffs2/load_kernel.h>
|
|
#include <mtd_node.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/printk.h>
|
|
|
|
#include "soc-info.h"
|
|
|
|
/*
|
|
* The DRAM PHY requires 64 byte scratch area in each DRAM channel
|
|
* for its dynamic PHY training feature.
|
|
*/
|
|
static int uniphier_ld20_fdt_mem_rsv(void *fdt, bd_t *bd)
|
|
{
|
|
unsigned long rsv_addr;
|
|
const unsigned long rsv_size = 64;
|
|
int i, ret;
|
|
|
|
if (!IS_ENABLED(CONFIG_ARCH_UNIPHIER_LD20) ||
|
|
uniphier_get_soc_id() != UNIPHIER_LD20_ID)
|
|
return 0;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(bd->bi_dram); i++) {
|
|
if (!bd->bi_dram[i].size)
|
|
continue;
|
|
|
|
rsv_addr = bd->bi_dram[i].start + bd->bi_dram[i].size;
|
|
rsv_addr -= rsv_size;
|
|
|
|
ret = fdt_add_mem_rsv(fdt, rsv_addr, rsv_size);
|
|
if (ret)
|
|
return -ENOSPC;
|
|
|
|
pr_notice(" Reserved memory region for DRAM PHY training: addr=%lx size=%lx\n",
|
|
rsv_addr, rsv_size);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ft_board_setup(void *fdt, bd_t *bd)
|
|
{
|
|
static const struct node_info nodes[] = {
|
|
{ "socionext,uniphier-denali-nand-v5a", MTD_DEV_TYPE_NAND },
|
|
{ "socionext,uniphier-denali-nand-v5b", MTD_DEV_TYPE_NAND },
|
|
};
|
|
int ret;
|
|
|
|
fdt_fixup_mtdparts(fdt, nodes, ARRAY_SIZE(nodes));
|
|
|
|
ret = uniphier_ld20_fdt_mem_rsv(fdt, bd);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|