summaryrefslogtreecommitdiff
path: root/arch/arm/mach-uniphier/clk/clk-dram-ld11.c
blob: 593e11a292825bf119832677906612865de6cf68 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
/*
 * Copyright (C) 2016-2017 Socionext Inc.
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <linux/io.h>

#include "../init.h"
#include "../sc64-regs.h"

void uniphier_ld11_dram_clk_init(void)
{
	u32 tmp;

	/* deassert reset */
	tmp = readl(SC_RSTCTRL7);
	tmp |= SC_RSTCTRL7_UMC31 | SC_RSTCTRL7_UMC30;
	writel(tmp, SC_RSTCTRL7);

	/* provide clocks */
	tmp = readl(SC_CLKCTRL7);
	tmp |= SC_CLKCTRL7_UMC31 | SC_CLKCTRL7_UMC30;
	writel(tmp, SC_CLKCTRL7);
}