u-boot/arch/arm/mach-uniphier/memconf/memconf-ph1-sld3.c
Masahiro Yamada 107b3fb484 ARM: uniphier: move headers out of include/mach directory
These headers are only included locally in arch/arm/mach-uniphier/.
There is no reason to export them by putting in the mach/ directory.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-01-13 01:54:53 +09:00

60 lines
1.1 KiB
C

/*
* Copyright (C) 2015 Masahiro Yamada <yamada.masahiro@socionext.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/sizes.h>
#include "../init.h"
#include "../sg-regs.h"
int ph1_sld3_memconf_init(const struct uniphier_board_data *bd)
{
u32 tmp;
unsigned long size_per_word;
tmp = readl(SG_MEMCONF);
tmp &= ~(SG_MEMCONF_CH2_SZ_MASK | SG_MEMCONF_CH2_NUM_MASK);
switch (bd->dram_ch2_width) {
case 16:
tmp |= SG_MEMCONF_CH2_NUM_1;
size_per_word = bd->dram_ch2_size;
break;
case 32:
tmp |= SG_MEMCONF_CH2_NUM_2;
size_per_word = bd->dram_ch2_size >> 1;
break;
default:
pr_err("error: unsupported DRAM Ch2 width\n");
return -EINVAL;
}
/* Set DDR size */
switch (size_per_word) {
case SZ_64M:
tmp |= SG_MEMCONF_CH2_SZ_64M;
break;
case SZ_128M:
tmp |= SG_MEMCONF_CH2_SZ_128M;
break;
case SZ_256M:
tmp |= SG_MEMCONF_CH2_SZ_256M;
break;
case SZ_512M:
tmp |= SG_MEMCONF_CH2_SZ_512M;
break;
default:
pr_err("error: unsupported DRAM Ch2 size\n");
return -EINVAL;
}
writel(tmp, SG_MEMCONF);
return 0;
}