diff options
| author |   Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
|---|---|---|
| committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
| commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
| tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/u-boot/arch/arm/mach-uniphier/clk/clk-pro5.c | |
| parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) | |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/u-boot/arch/arm/mach-uniphier/clk/clk-pro5.c')
| -rw-r--r-- | roms/u-boot/arch/arm/mach-uniphier/clk/clk-pro5.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/roms/u-boot/arch/arm/mach-uniphier/clk/clk-pro5.c b/roms/u-boot/arch/arm/mach-uniphier/clk/clk-pro5.c new file mode 100644 index 000000000..36006fd25 --- /dev/null +++ b/roms/u-boot/arch/arm/mach-uniphier/clk/clk-pro5.c @@ -0,0 +1,34 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2015 Masahiro Yamada <yamada.masahiro@socionext.com> + */ + +#include <linux/io.h> + +#include "../init.h" +#include "../sc-regs.h" + +void uniphier_pro5_clk_init(void) +{ +#ifdef CONFIG_USB_DWC3_UNIPHIER + u32 tmp; + + /* deassert reset */ + tmp = readl(sc_base + SC_RSTCTRL); + tmp |= SC_RSTCTRL_NRST_USB3B0 | SC_RSTCTRL_NRST_GIO; + writel(tmp, sc_base + SC_RSTCTRL); + readl(sc_base + SC_RSTCTRL); /* dummy read */ + + tmp = readl(sc_base + SC_RSTCTRL2); + tmp |= SC_RSTCTRL2_NRST_USB3B1; + writel(tmp, sc_base + SC_RSTCTRL2); + readl(sc_base + SC_RSTCTRL2); /* dummy read */ + + /* provide clocks */ + tmp = readl(sc_base + SC_CLKCTRL); + tmp |= SC_CLKCTRL_CEN_USB31 | SC_CLKCTRL_CEN_USB30 | + SC_CLKCTRL_CEN_GIO; + writel(tmp, sc_base + SC_CLKCTRL); + readl(sc_base + SC_CLKCTRL); /* dummy read */ +#endif +} |