/* * Copyright (C) 2011-2014 Panasonic Corporation * Copyright (C) 2015-2017 Socionext Inc. * * SPDX-License-Identifier: GPL-2.0+ */ #include #include #include #include "../init.h" #include "../sc-regs.h" void uniphier_sld3_dram_clk_init(void) { u32 tmp; /* deassert reset */ tmp = readl(SC_RSTCTRL); tmp |= SC_RSTCTRL_NRST_UMC1 | SC_RSTCTRL_NRST_UMC0; writel(tmp, SC_RSTCTRL); readl(SC_RSTCTRL); /* dummy read */ /* provide clocks */ tmp = readl(SC_CLKCTRL); tmp |= SC_CLKCTRL_CEN_UMC; writel(tmp, SC_CLKCTRL); readl(SC_CLKCTRL); /* dummy read */ }