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| author | Tom Rini <trini@konsulko.com> | 2017-01-17 16:39:43 (GMT) |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2017-01-17 16:39:43 (GMT) |
| commit | bfd07670a48d9fbf22646c93e07dcd8cbc8d0864 (patch) | |
| tree | 3ce5c9c53c29c93bd72adfecfc0085b8a9346ad6 /arch/arm/mach-uniphier/clk/clk-dram-ld20.c | |
| parent | 373ae16c9282cf6dfb39cd6e1b8ad26098635ca2 (diff) | |
| parent | 2cfa35c47b9c9b80c8ff084f55391a03fd575956 (diff) | |
| download | u-boot-bfd07670a48d9fbf22646c93e07dcd8cbc8d0864.tar.xz | |
Merge branch 'master' of git://git.denx.de/u-boot-uniphier
- Enable eMMC driver for LD11/LD20 SoCs
- Refactoring of SoC init code
- Bug fix of pinctrl driver
Diffstat (limited to 'arch/arm/mach-uniphier/clk/clk-dram-ld20.c')
| -rw-r--r-- | arch/arm/mach-uniphier/clk/clk-dram-ld20.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/arm/mach-uniphier/clk/clk-dram-ld20.c b/arch/arm/mach-uniphier/clk/clk-dram-ld20.c new file mode 100644 index 0000000..62e5acd --- /dev/null +++ b/arch/arm/mach-uniphier/clk/clk-dram-ld20.c @@ -0,0 +1,28 @@ +/* + * 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_ld20_dram_clk_init(void) +{ + u32 tmp; + + /* deassert reset */ + tmp = readl(SC_RSTCTRL7); + tmp |= SC_RSTCTRL7_UMCSB | SC_RSTCTRL7_UMCA2 | SC_RSTCTRL7_UMCA1 | + SC_RSTCTRL7_UMCA0 | SC_RSTCTRL7_UMC32 | SC_RSTCTRL7_UMC31 | + SC_RSTCTRL7_UMC30; + writel(tmp, SC_RSTCTRL7); + + /* provide clocks */ + tmp = readl(SC_CLKCTRL7); + tmp |= SC_CLKCTRL7_UMCSB | SC_CLKCTRL7_UMC32 | SC_CLKCTRL7_UMC31 | + SC_CLKCTRL7_UMC30; + writel(tmp, SC_CLKCTRL7); +} |