diff options
| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2017-08-13 09:01:13 +0900 |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2017-08-20 23:05:39 +0900 |
| commit | 00aa453ebf56fc3a2bd5b684467bc912ba59c4d6 (patch) | |
| tree | 24cfdbc4fc026ae68b61d163d8709f24b2bfb669 /arch/arm/mach-uniphier/clk/clk-dram-ld4.c | |
| parent | 213fcabdfdac829aed2506793567c7d6497a3b8e (diff) | |
| download | u-boot-00aa453ebf56fc3a2bd5b684467bc912ba59c4d6.tar.gz | |
ARM: uniphier: remove sLD3 SoC support
This SoC is too old. It is difficult to maintain any longer.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'arch/arm/mach-uniphier/clk/clk-dram-ld4.c')
| -rw-r--r-- | arch/arm/mach-uniphier/clk/clk-dram-ld4.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/arm/mach-uniphier/clk/clk-dram-ld4.c b/arch/arm/mach-uniphier/clk/clk-dram-ld4.c new file mode 100644 index 0000000000..407daf0664 --- /dev/null +++ b/arch/arm/mach-uniphier/clk/clk-dram-ld4.c @@ -0,0 +1,30 @@ +/* + * Copyright (C) 2011-2014 Panasonic Corporation + * Copyright (C) 2015-2017 Socionext Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <spl.h> +#include <linux/io.h> + +#include "../init.h" +#include "../sc-regs.h" + +void uniphier_ld4_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 */ +} |